First Business Financial Services (FBIZ) 10-K 10 Mar 17 2016 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Mar. 02, 2017	Jun. 30, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	First Business Financial Services, Inc.
Entity Central Index Key	1,521,951
Current Fiscal Year End Date	--12-31
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 204.3
Entity Common Stock, Shares Outstanding		8,718,406

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets
Cash and due from banks	$ 14,596	$ 14,640
Short-term investments	62,921	98,924
Cash and cash equivalents	77,517	113,564
Securities available-for-sale, at fair value	145,893	140,548
Securities held-to-maturity, at amortized cost	38,612	37,282
Loans held for sale	1,111	2,702
Loans and leases receivable, net of allowance for loan and lease losses of $20,912 and $16,316, respectively	1,429,763	1,414,649
Premises and equipment, net	3,772	3,954
Foreclosed properties	1,472	1,677
Bank-owned life insurance	39,048	28,298
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	2,131	2,843
Goodwill and other intangible assets	12,773	12,493
Accrued interest receivable and other assets	28,607	24,071
Total assets	1,780,699	1,782,081
Liabilities and Stockholders’ Equity
Deposits	1,538,855	1,577,231
Federal Home Loan Bank advances and other borrowings	59,676	34,740
Junior subordinated notes	10,004	9,990
Accrued interest payable and other liabilities	10,514	9,288
Total liabilities	1,619,049	1,631,249
Stockholders’ equity:
Preferred stock, $0.01 par value, 2,500,000 shares authorized, none issued or outstanding	0	0
Common stock, $0.01 par value, 25,000,000 shares authorized, 8,959,239 and 8,922,375 shares issued, 8,715,856 and 8,699,410 shares outstanding at December 31, 2016 and 2015, respectively	90	89
Additional paid-in capital	77,542	76,549
Retained earnings	91,317	80,584
Accumulated other comprehensive loss	(522)	(80)
Treasury stock (243,383 and 222,965 shares at December 31, 2016 and 2015, respectively), at cost	(6,777)	(6,310)
Total stockholders’ equity	161,650	150,832
Total liabilities and stockholders’ equity	$ 1,780,699	$ 1,782,081

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Consolidated Balance Sheets - Parenthetical [Abstract]
Allowance for loan and lease losses	$ 20,912	$ 16,316
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	2,500,000	2,500,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	8,959,239	8,922,375
Common stock, shares outstanding	8,715,856	8,699,410
Treasury stock, shares	243,383	222,965

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest income
Loans and leases	$ 74,627	$ 69,135	$ 54,047
Securities income	2,845	2,962	3,342
Short-term investments	645	374	312
Total interest income	78,117	72,471	57,701
Interest expense
Deposits	11,716	10,877	9,470
Federal Home Loan Bank advances and other borrowings	1,958	1,842	989
Junior subordinated notes	1,115	1,112	1,112
Total interest expense	14,789	13,831	11,571
Net interest income	63,328	58,640	46,130
Provision for loan and lease losses	7,818	3,386	1,236
Net interest income after provision for loan and lease losses	55,510	55,254	44,894
Non-interest income
Trust and investment services fee income	5,356	4,954	4,434
Gain on sale of Small Business Association loans	4,400	3,999	318
Gain on sale of residential mortgage loans	590	729	74
Service charges on deposits	2,990	2,812	2,469
Loan fees	2,430	2,187	1,577
Increase in cash surrender value of bank-owned life insurance	974	960	862
Other non-interest income	1,248	1,370	369
Total non-interest income	17,988	17,011	10,103
Non-interest expense
Compensation	31,545	28,543	21,477
Occupancy	2,019	1,973	1,391
Professional fees	4,031	4,893	3,405
Data processing	3,298	2,378	1,710
Marketing	2,338	2,585	1,662
Equipment	1,189	1,230	650
FDIC insurance	1,472	920	758
Collateral liquidation costs	262	472	320
Net loss (gain) on foreclosed properties	122	(171)	(10)
Impairment of tax credit investments	3,691	0	0
SBA Recourse Provision	2,068	0	0
Other	4,398	4,551	2,412
Other non-interest expense	56,433	47,374	33,775
Income before income tax expense	17,065	24,891	21,222
Income tax expense	2,156	8,377	7,083
Net income	$ 14,909	$ 16,514	$ 14,139
Earnings per common share:
Basic	$ 1.71	$ 1.90	$ 1.76
Diluted	1.71	1.90	1.75
Dividends declared per share	$ 0.48	$ 0.44	$ 0.42

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 14,909	$ 16,514	$ 14,139
Other comprehensive (loss) income, before tax
Unrealized securities (losses) gains arising during the period	(912)	(719)	1,619
Unrealized losses transferred during the period	0	0	(874)
Amortization of net unrealized losses transferred from available-for-sale	159	233	167
Income tax benefit (expense)	311	188	(352)
Total other comprehensive (loss) income	(442)	(298)	560
Comprehensive income	$ 14,467	$ 16,216	$ 14,699

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock
Beginning balance at Dec. 31, 2013	$ 109,275	$ 41	$ 56,002	$ 57,143	$ (342)	$ (3,569)
Common stock, shares outstanding at Dec. 31, 2013		7,887,994
Net income	14,139			14,139
Other comprehensive loss	560				560
Issuance of common stock, shares		720,162
Issuance of common stock	16,557	$ 3	16,554
Exercise of stock options, shares		78,000
Exercise of stock options	937	$ 1	936
Share-based compensation - restricted shares, shares		64,522
Share-based compensation - restricted shares	887		887
Share-based compensation - tax benefits	584		584
Cash dividends ($0.42 per share during 2014, $0.44 per share during 2015, and $0.48 per share during 2016)	(3,396)			(3,396)
Treasury stock purchased, shares		(78,824)
Treasury stock purchased	(1,795)					(1,795)
Ending balance at Dec. 31, 2014	137,748	$ 45	74,963	67,886	218	(5,364)
Common stock, shares outstanding at Dec. 31, 2014		8,671,854
Net income	16,514			16,514
Other comprehensive loss	(298)				(298)
Common Stock Dividends		$ 44	(44)
Exercise of stock options, shares		24,000
Exercise of stock options	300	$ 0	300
Share-based compensation - restricted shares, shares		45,347
Share-based compensation - restricted shares	1,063		1,063
Share-based compensation - tax benefits	267		267
Cash dividends ($0.42 per share during 2014, $0.44 per share during 2015, and $0.48 per share during 2016)	(3,816)			(3,816)
Treasury stock purchased, shares		(41,791)
Treasury stock purchased	(946)					(946)
Ending balance at Dec. 31, 2015	$ 150,832	$ 89	76,549	80,584	(80)	(6,310)
Common stock, shares outstanding at Dec. 31, 2015	8,699,410	8,699,410
Net income	$ 14,909			14,909
Other comprehensive loss	(442)				(442)
Share-based compensation - restricted shares, shares		36,864
Share-based compensation - restricted shares	994	$ 1	993
Cash dividends ($0.42 per share during 2014, $0.44 per share during 2015, and $0.48 per share during 2016)	(4,176)			(4,176)
Treasury stock purchased, shares		(20,418)
Treasury stock purchased	(467)					(467)
Ending balance at Dec. 31, 2016	$ 161,650	$ 90	$ 77,542	$ 91,317	$ (522)	$ (6,777)
Common stock, shares outstanding at Dec. 31, 2016	8,715,856	8,715,856

Consolidated Statements of Cha7

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Common stock, cash dividends, per share, declared	$ 0.48	$ 0.44	$ 0.42
Retained earnings
Common stock, cash dividends, per share, declared	$ 0.48	$ 0.44	$ 0.42

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating activities
Net income	$ 14,909,000	$ 16,514,000	$ 14,139,000
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes, net	(1,108,000)	1,158,000	1,389,000
Impairment of tax credit investments	3,691,000	0	0
Provision for loan and lease losses	7,818,000	3,386,000	1,236,000
Depreciation, amortization and accretion, net	1,515,000	(90,000)	1,870,000
Share-based compensation	994,000	1,063,000	887,000
Gain on sale of available-for-sale securities	(10,000)	0	0
Increase in value of bank-owned life insurance policies	(974,000)	(960,000)	(862,000)
Origination of loans for sale	(71,965,000)	(70,254,000)	(9,392,000)
Sale of loans originated for sale	78,546,000	77,333,000	6,651,000
Gain on sale of loans originated for sale	(4,990,000)	(4,728,000)	(392,000)
Net loss (gain) on foreclosed properties, including impairment valuation	122,000	(171,000)	(10,000)
Excess tax benefit from share-based compensation	(142,000)	0	0
Returns on investments in limited partnerships	250,000	0	0
Increase in accrued interest receivable and other assets	(3,861,000)	(1,033,000)	(5,448,000)
Increase in accrued interest payable and other liabilities	1,367,000	1,002,000	1,806,000
Net cash provided by operating activities	26,162,000	23,220,000	11,874,000
Investing activities
Proceeds from maturities, redemptions and paydowns of available-for-sale securities	43,745,000	42,899,000	44,148,000
Proceeds from maturities, redemptions and paydowns of held-to-maturity securities	3,882,000	4,349,000	2,211,000
Proceeds from sale of available-for-sale securities	5,227,000	0	0
Purchases of available-for-sale and held-to-maturity securities	(61,547,000)	(40,721,000)	(52,947,000)
Proceeds from sale of foreclosed properties	83,000	528,000	255,000
Net increase in loans and leases	(22,385,000)	(155,204,000)	(299,095,000)
Net cash associated with the Alterra Bank acquisition	0	0	(11,957,000)
Investments in limited partnerships	(750,000)	0	(1,000,000)
Returns of investments in limited partnerships	541,000	459,000	722,000
Investment in community development entity	0	0	(7,500,000)
Investments in historic development entities	(3,456,000)	(578,000)	0
Investment in Federal Home Loan Bank and Federal Reserve Bank Stock	(1,308,000)	(1,352,000)	(1,459,000)
Proceeds from the sale of Federal Home Loan Bank Stock	2,020,000	849,000	373,000
Purchases of leasehold improvements and equipment, net	(584,000)	(789,000)	(3,190,000)
Purchases of bank owned life insurance policies	(9,750,000)	0	(3,285,000)
Premium payment on bank owned life insurance policies	(26,000)	(25,000)	(25,000)
Net cash used in investing activities	(44,308,000)	(149,585,000)	(332,749,000)
Financing activities
Net (decrease) increase in deposits	(38,256,000)	139,469,000	308,413,000
Repayment of Federal Home Loan Bank advances	(4,500,000)	(1,000,000)	0
Proceeds from Federal Home Loan Bank advances	30,000,000	0	9,383,000
Net (decrease) increase in short-term borrowed funds	(1,500,000)	1,500,000	1,000,000
Net increase in long-term borrowed funds	998,000	918,000	675,000
Proceeds from issuance of subordinated notes payable, net of issuance costs	0	0	14,469,000
Repayment of subordinated notes payable	0	0	(4,000,000)
Excess tax benefit from share-based compensation	0	267,000	584,000
Common stock issuance	0	0	16,557,000
Cash dividends paid	(4,176,000)	(3,816,000)	(3,396,000)
Exercise of stock options	0	300,000	936,000
Purchase of treasury stock	(467,000)	(946,000)	(1,795,000)
Net cash (used in) provided by financing activities	(17,901,000)	136,692,000	342,826,000
Net (decrease) increase in cash and cash equivalents	(36,047,000)	10,327,000	21,951,000
Cash and cash equivalents at the beginning of the period	113,564,000	103,237,000	81,286,000
Cash and cash equivalents at the end of the period	77,517,000	113,564,000	103,237,000
Supplementary cash flow information
Interest paid on deposits and borrowings	14,790,000	13,639,000	11,048,000
Income taxes paid	5,554,000	5,668,000	7,221,000
Transfer of securities from available-for-sale to held-to-maturity	0	0	44,587,000
Transfer of loans from held-to-maturity to held-for-sale	11,504,000	4,336,000	0
Unrealized loss on transfer of securities from available-for-sale to held-to-maturity	$ 0	$ 0	$ (874,000)

Nature of Operations and Summar

Nature of Operations and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations and Summary of Significant Accounting Policies	Nature of Operations and Summary of Significant Accounting Policies Nature of Operations. The accounting and reporting practices of First Business Financial Services, Inc. (the “Corporation”), its wholly-owned subsidiaries, First Business Bank (“FBB”), First Business Bank – Milwaukee (“FBB – Milwaukee”) and Alterra Bank (“Alterra”) have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). FBB, FBB – Milwaukee and Alterra are sometimes referred to together as the “Banks.” FBB operates as a commercial banking institution in the Madison, Wisconsin market, consisting primarily of Dane County and the surrounding areas, with three loan production offices in Northeast Wisconsin. FBB also offers trust and investment services through First Business Trust & Investments (“FBTI”), a division of FBB. FBB – Milwaukee operates as a commercial banking institution in the Milwaukee, Wisconsin market, consisting primarily of Waukesha County and the surrounding areas, with a loan production office in Kenosha, Wisconsin. Alterra operates as a commercial banking institution in the Kansas City market and the surrounding areas. The Banks provide a full range of financial services to businesses, business owners, executives, professionals and high net worth individuals. The Banks are subject to competition from other financial institutions and service providers and are also subject to state and federal regulations. FBB has the following wholly-owned subsidiaries: First Business Capital Corp. (“FBCC”), First Madison Investment Corp. (“FMIC”), First Business Equipment Finance, LLC (“FBEF”), Rimrock Road Investment Fund, LLC (“Rimrock Road”), BOC Investment, LLC (“BOC”) and Mitchell Street Apartments Investment, LLC (“Mitchell Street”). FMIC is located in and was formed under the laws of the State of Nevada. FBB-Milwaukee has one subsidiary, FBB – Milwaukee Real Estate, LLC (“FBBMRE”). Basis of Financial Statement Presentation. The Consolidated Financial Statements include the accounts of the Corporation and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. In accordance with the provisions of Accounting Standards Codification (“ASC”) Topic 810, the Corporation’s ownership interest in FBFS Statutory Trust II (“Trust II”) has not been consolidated into the financial statements. Management of the Corporation is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements as well as reported amounts of revenues and expenses during the reporting period. Actual results could differ significantly from those estimates. Material estimates that could significantly change in the near-term include the value of securities, level of the allowance for loan and lease losses, lease residuals, property under operating leases, goodwill, level of the Small Business Administration (“SBA”) recourse reserve and income taxes. Certain amounts in prior periods may have been reclassified to conform to the current presentation. Subsequent events have been evaluated through the date of the issuance of the Consolidated Financial Statements. No significant subsequent events have occurred through this date requiring adjustment to the financial statements or disclosures. Cash and Cash Equivalents. The Corporation considers federal funds sold, interest-bearing deposits and short-term investments that have original maturities of three months or less to be cash equivalents. Securities. The Corporation classifies its investment and mortgage-related securities as available-for-sale, held-to-maturity and trading. Debt securities that the Corporation has the positive intent and ability to hold to maturity are classified as held-to-maturity and are stated at amortized cost. Debt and equity securities bought expressly for the purpose of selling in the near term are classified as trading securities and are measured at fair value with unrealized gains and losses reported in earnings. Debt and equity securities not classified as held-to-maturity or as trading are classified as available-for-sale. Available-for-sale securities are measured at fair value with unrealized gains and losses reported as a separate component of stockholders’ equity, net of tax. Realized gains and losses, and declines in value deemed to be other than temporary, are included in the consolidated statements of income as a component of non-interest income. The cost of securities sold is based on the specific identification method. The Corporation did not hold any trading securities at December 31, 2016 or 2015 . Discounts and premiums on securities are accreted and amortized into interest income using the effective yield method over the weighted average life of the securities. Declines in the fair value of investment securities (with certain exceptions for debt securities noted below) that are deemed to be other-than-temporary are charged to earnings as a realized loss and a new cost basis for the securities is established. In evaluating other-than-temporary impairment, management considers the length of time and extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer and the intent and ability of the Corporation to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value in the near term. Declines in the fair value of debt securities below amortized cost are deemed to be other-than-temporary in circumstances where: (1) the Corporation has the intent to sell a security; (2) it is more likely than not that the Corporation will be required to sell the security before recovery of its amortized cost basis; or (3) the Corporation does not expect to recover the entire amortized cost basis of the security. If the Corporation intends to sell a security or if it is more likely than not that the Corporation will be required to sell the security before recovery, an other-than-temporary impairment write-down is recognized in earnings equal to the difference between the security’s amortized cost basis and its fair value. If the Corporation does not intend to sell the security or it is not more likely than not that it will be required to sell the security before recovery, the other-than-temporary impairment write-down is separated into an amount representing credit loss, which is recognized in earnings, and an amount related to all other factors, which is recognized in other comprehensive income. Loans Held for Sale. Residential real estate loans and the guaranteed portion of SBA loans which are originated and intended for sale in the secondary market in the foreseeable future are classified as held for sale. These loans are carried at the lower of cost or fair value in the aggregate. Unrealized losses on such loans are recognized through a valuation allowance by a charge to other non-interest income. Gains and losses on the sale of loans are also included in other non-interest income. As assets specifically originated for sale, the origination of, disposition of, and gain/loss on these loans are classified as operating activities in the statement of cash flows. Fees received from the borrower and direct costs to originate the loan are deferred and recognized as part of the gain or loss on sale. There was $1.1 million and $2.7 million in loans held for sale outstanding at December 31, 2016 and 2015 , respectively. Loans and Leases. Loans and leases which management has the intent and ability to hold for the foreseeable future or until maturity are reported at their outstanding principal balance with adjustments for partial charge-offs, the allowance for loan and lease losses, deferred fees or costs on originated loans and leases and unamortized premiums or discounts on any purchased loans. A loan or a lease is accounted for as a troubled debt restructuring if the Corporation, for economic or legal reasons related to the borrower’s financial condition, grants a concession to the borrower that it would not otherwise consider. A troubled debt restructuring may involve the receipt of assets from the debtor in partial or full satisfaction of the loan or lease or a modification of terms, such as a reduction of the stated interest rate or face amount of the loan or lease, a reduction of accrued interest, an extension of the maturity date at a stated interest rate lower than the current market rate for a new loan or lease with similar risk or some combination of these concessions. Restructured loans can involve loans remaining on non-accrual, moving to non-accrual or continuing on accrual status, depending on individual facts and circumstances. Non-accrual restructured loans are included and treated with all other non-accrual loans. In addition, all accruing restructured loans are reported as troubled debt restructurings which are considered and accounted for as impaired loans. Generally, restructured loans remain on non-accrual until the borrower has attained a sustained period of repayment performance under the modified loan terms (generally a minimum of six months). However, performance prior to the restructuring, or significant events that coincide with the restructuring, are considered in assessing whether the borrower can meet the new terms and whether the loan should be returned to or maintained on accrual status. If the borrower’s ability to meet the revised payment schedule is not reasonably assured, the loan remains on non-accrual. Interest on non-impaired loans and leases is accrued and credited to income on a daily basis based on the unpaid principal balance and is calculated using the effective interest method. Per policy, a loan or a lease is considered impaired and placed on a non-accrual status when it becomes 90 days past due or it is doubtful that contractual principal and interest will be collected in accordance with the terms of the contract. A loan or lease is determined to be past due if the borrower fails to meet a contractual payment and will continue to be considered past due until all contractual payments are received. When a loan or lease is placed on non-accrual, the interest accrual is discontinued and previously accrued but uncollected interest is deducted from interest income. If collectability of the contractual principal and interest is in doubt, payments received are first applied to reduce the loan principal. If collectability of the contractual payments is not in doubt, payments may be applied to interest for interest amounts due on a cash basis. As soon as it is determined with certainty that the principal of an impaired loan or lease is uncollectable, either through collections from the borrower or disposition of the underlying collateral, the portion of the carrying balance that exceeds the estimated measurement value of the loan or lease is charged off. Loans or leases are returned to accrual status when they are brought current in terms of both principal and accrued interest due, have performed in accordance with contractual terms for a reasonable period of time and when the ultimate collectability of total contractual principal and interest is no longer doubtful. Transfers of assets, including but not limited to the guaranteed portion of SBA loans and participation interests in other originated loans, that upon completion of the transfer satisfy the conditions to be reported as a sale, including legal isolation, are derecognized from the Consolidated Financial Statements. Transfers of assets that upon completion of the transfer do not meet the conditions of a sale are recorded on a gross basis with a secured borrowing identified to reflect the amount of the transferred interest. Loan and lease origination fees as well as certain direct origination costs are deferred and amortized as an adjustment to loan yields over the stated term of the loan or lease. Loans or leases that result from a refinance or restructuring, other than a troubled debt restructuring, where terms are at least as favorable to the Corporation as the terms for comparable loans to other borrowers with similar collection risks and result in an essentially new loan or lease, are accounted for as a new loan or lease. Any unamortized net fees, costs or penalties are recognized when the new loan or lease is originated. Unamortized net loan or lease fees or costs for loans and leases that result from a refinance or restructure with only minor modifications to the original loan or lease contract are carried forward as a part of the net investment in the new loan or lease. For troubled debt restructurings, all fees received in connection with a modification of terms are applied as a reduction of the loan or lease and any related costs, including direct loan origination costs, are charged to expense as incurred. The Corporation purchased an individual loan in 2013 and a group of loans in connection with the Alterra acquisition which have shown evidence of credit deterioration since origination. These purchased loans are recorded at fair value, such that there is no carryover of the seller’s allowance for loan losses. Such purchased loans are accounted for individually. At acquisition, the Corporation estimates the amount and timing of expected cash flows for each purchased loan and the expected cash flows in excess of fair value are recorded as interest income over the remaining life of the loan (accretable yield). The excess of the loan’s contractual principal and interest over expected cash flows at acquisition is not recorded (nonaccretable difference). Over the life of the loan, expected cash flows continue to be estimated. If the present value of expected cash flows is less than the carrying amount, losses are recognized by an increase in the allowance for loan losses. If the present value of expected cash flows is greater than the carrying amount, it is recognized as part of future interest income. Allowance for Loan and Lease Losses. The allowance for loan and lease losses is maintained at a level that management deems appropriate to absorb probable and estimable losses inherent in the loan and lease portfolios. The methodology applied for determining inherent losses stems from current risk characteristics of the loan and lease portfolio, an assessment of individual impaired loans and leases, actual loss experience and adverse situations that may affect the borrower’s ability to repay. The methodology also focuses on evaluation of several factors for each portfolio category, including but not limited to: management’s ongoing review and grading of the loan and lease portfolios, consideration of delinquency experience, changes in the size of the loan and lease portfolios, existing economic conditions, level of loans and leases subject to more frequent review by management, changes in underlying collateral, concentrations of loans to specific industries and other qualitative and quantitative factors that could affect credit losses. Some impaired and other loans and leases have risk characteristics that are unique to an individual borrower and the loss must be estimated on an individual basis. Other impaired and problem loans and leases may have risk characteristics similar to other loans and leases and bear similar inherent risk of loss. Such loans and leases, which are not individually reviewed and measured for impairment, are aggregated and historical loss statistics are used to determine the risk of loss. The measurement of the estimate of loss is reliant upon historical experience, information about the ability of the individual debtor to pay and the appraisal of loan collateral in light of current economic conditions. An estimate of loss is an approximation of what portion of all amounts receivable, according to the contractual terms of that receivable, is deemed uncollectible. Determination of the allowance is inherently subjective because it requires estimation of amounts and timing of expected future cash flows on impaired loans and leases, estimation of losses on types of loans and leases based on historical losses and consideration of current economic trends, both local and national. Based on management’s periodic review using all previously mentioned pertinent factors, a provision for loan and lease losses is charged to expense when it is determined an increase in the allowance for loan and lease losses is appropriate. A negative provision for loan and lease losses may be recognized if management determines a reduction in the level of allowance for loan and lease losses is appropriate. Loan and lease losses are charged against the allowance and recoveries are credited to the allowance. The allowance for loan and lease losses contains specific allowances established for expected losses on impaired loans and leases. Impaired loans and leases are defined as loans and leases for which, based on current information and events, it is probable that the Corporation will be unable to collect scheduled principal and interest payments according to the contractual terms of the loan or lease agreement. Loans and leases subject to impairment are defined as non-accrual and restructured loans and leases. Impaired loans and leases are evaluated on an individual basis to determine the amount of specific reserve or charge-off required, if any. Smaller balance (individually less than $50,000) loans and leases are collectively evaluated for impairment as allowed under applicable accounting standards. The measurement value of impaired loans and leases is determined based on the present value of expected future cash flows discounted at the loan’s effective interest rate (the contractual interest rate adjusted for any net deferred loan fees or costs, premium or discount existing at the origination or acquisition of the loan), the market price of the loan or lease or the fair value of the underlying collateral less costs to sell, if the loan or lease is collateral dependent. A loan or lease is collateral dependent if repayment is expected to be provided principally by the underlying collateral. A loan’s effective interest rate may change over the life of the loan based on subsequent changes in rates or indices or may be fixed at the rate in effect at the date the loan was determined to be impaired. Subsequent to the initial impairment, any significant change in the amount or timing of an impaired loan or lease’s future cash flows will result in a reassessment of the valuation allowance to determine if an adjustment is necessary. Measurements based on observable market price or fair value of the collateral may change over time and require a reassessment of the allowance if there is a significant change in either measurement base. Any increase in the present value of expected future cash flows attributable to the passage of time is recorded as interest income accrued on the net carrying amount of the loan or lease at the effective interest rate used to discount the impaired loan or lease’s estimated future cash flows. Any change in present value attributable to changes in the amount or timing of expected future cash flows is recorded as loan loss expense in the same manner in which impairment was initially recognized or as a reduction of loan loss expense that otherwise would be reported. Where the level of loan or lease impairment is measured using observable market price or fair value of collateral, any change in the observable market price of an impaired loan or lease or fair value of the collateral of an impaired collateral-dependent loan or lease is recorded as loan loss expense in the same manner in which impairment was initially recognized. Any increase in the observable market value of the impaired loan or lease or fair value of the collateral in an impaired collateral-dependent loan or lease is recorded as a reduction in the amount of loan loss expense that otherwise would be reported. Net Investment in Direct Financing Leases. The net investment in direct financing lease agreements represents total undiscounted payments plus estimated unguaranteed residual value (approximating 3% to 20% of the cost of the related equipment) and is recorded as lease receivables when the lease is signed and the leased property is delivered to the client. The excess of the minimum lease payments and residual values over the cost of the equipment is recorded as unearned lease income. Unearned lease income is recognized over the term of the lease on a basis which results in an approximate level rate of return on the unrecovered lease investment. Lease payments are recorded when due under the lease contract. Residual values are established at lease inception equal to the estimated value to be received from the equipment following termination of the initial lease and such estimated value considers all relevant information and circumstances regarding the equipment. In estimating the equipment’s fair value at lease termination, the Corporation relies on internally or externally prepared appraisals, published sources of used equipment prices and historical experience adjusted for known current industry and economic trends. The Corporation’s estimates are periodically reviewed to ensure reasonableness; however, the amounts the Corporation will ultimately realize could differ from the estimated amounts. When there are other than temporary declines in the Corporation’s carrying amount of the unguaranteed residual value, the carrying value is reduced and charged to non-interest expense. Operating Leases. Machinery and equipment are leased to clients under operating leases and are recorded at cost. Equipment under such leases is depreciated over the estimated useful life or term of the lease, if shorter. The impairment loss, if any, would be charged to expense in the period it becomes evident. Rental income is recorded on the straight-line accrual basis as other non-interest income. Premises and Equipment, net. The cost of buildings and capitalized leasehold improvements is amortized on the straight-line method over the lesser of the term of the respective lease or estimated economic life. Equipment is stated at cost less accumulated depreciation and amortization which is calculated by the straight-line method over the estimated useful lives of three to ten years. Maintenance and repair costs are charged to expense as incurred. Improvements which extend the useful life are capitalized and depreciated over the remaining useful life of the assets. Foreclosed Properties. Property acquired by repossession, foreclosure or by deed in lieu of foreclosure is carried at the lower of the recorded investment in the loan at the time of acquisition or the fair value of the underlying property, less costs to sell. Any write-down in the carrying value of a loan or lease at the time of acquisition is charged to the allowance for loan and lease losses. Any subsequent write-downs to reflect current fair value, as well as gains and losses on disposition and revenues are recorded in non-interest expense. Costs relating to the development and improvement of the property are capitalized while holding period costs are charged to other non-interest expense. Bank-Owned Life Insurance. Bank-owned life insurance (“BOLI”) is reported at the amount that would be realized if the life insurance policies were surrendered on the balance sheet date. BOLI policies owned by the Banks are purchased with the objective to fund certain future employee benefit costs with the death benefit proceeds. The cash surrender value of such policies is recorded in bank-owned life insurance on the Consolidated Balance Sheets and changes in the value are recorded in non-interest income. The total death benefit of all of the BOLI policies was $97.3 million and $67.1 million as of December 31, 2016 and 2015 , respectively. There are no restrictions on the use of BOLI proceeds nor are there any contractual restrictions on the ability to surrender the policy. As of each of December 31, 2016 and 2015 , there were no borrowings against the cash surrender value of the BOLI policies. Federal Home Loan Bank and Federal Reserve Bank Stock. The Banks are required to maintain Federal Home Loan Bank (“FHLB”) stock as members of the FHLB, and in amounts as required by these institutions. Alterra, as a state chartered member of the Federal Reserve Bank of Kansas City, is required to own shares of Federal Reserve Bank (“FRB”) stock. These equity securities are “restricted” in that they can only be sold back to the respective institutions or another member institution at par. Therefore, they are less liquid than other marketable equity securities and their fair value is equal to cost. At December 31, 2016 and 2015 , the Banks had FHLB stock of $1.1 million and $1.8 million , respectively. Alterra had FRB stock of $1.1 million at December 31, 2016 and 2015 . The Corporation periodically evaluates its holding in FHLB and FRB stock for impairment. Should the stock be impaired, it would be written down to its estimated fair value. There were no impairments recorded on FHLB and FRB stock during the year ended December 31, 2016 or 2015 . Goodwill and Other Intangible Assets. Goodwill and other intangible assets consist primarily of goodwill, core deposit intangibles and loan servicing rights. Core deposit intangibles have estimated finite lives and are amortized on an accelerated basis to expense over a period of seven years. Loan servicing rights, when purchased, are initially recorded at fair value and subsequently amortized in proportion to and over the period of estimated net servicing income. The Corporation reviews other intangible assets for impairment at least annually, or whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable, in which case an impairment charge would be recorded. Goodwill is not amortized but is subject to impairment tests on at least an annual basis, and more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of the reporting unit below its carrying amount (including goodwill). An initial qualitative evaluation is made to assess the likelihood of impairment and determine whether further quantitative testing to calculate the fair value is necessary. When the qualitative evaluation indicates that impairment is more likely than not, quantitative testing is required whereby the fair value of each reporting unit is calculated and compared to the recorded book value, “step one.” If the calculated fair value of the reporting unit exceeds its carrying value, goodwill is not considered impaired and “step two” is not considered necessary. If the carrying value of a reporting unit exceeds its calculated fair value, the impairment test continues (“step two”) by comparing the carrying value of the reporting unit’s goodwill to the implied fair value of goodwill. The implied fair value is computed by adjusting all assets and liabilities of the reporting unit to current fair value with the offset adjustment to goodwill. The adjusted goodwill balance is the implied fair value of the goodwill. An impairment charge is recognized if the carrying value of goodwill exceeds the implied fair value of goodwill. See Note 6 for additional information on goodwill and other intangible assets. SBA Recourse Reserve. The Corporation establishes SBA recourse reserves on the guaranteed portion of sold SBA loans when it is probable that the guarantee may be ineligible. The recourse reserve is reported in accrued interest payable and other liabilities on the Consolidated Balance Sheets and consists of two components: (1) specific reserves for individually evaluated impaired loans that present a collateral shortfall where the guaranty associated with the sold portion of the SBA loan is determined to most likely be ineligible; and (2) general reserves for estimated probable losses on the remaining sold portfolio. The general reserve methodology is based on the evaluation of several factors, including but not limited to: credit quality trends within the SBA portfolio, changes in underlying collateral and the Corporation’s ability to originate, fund or service sold SBA loans in accordance with SBA regulations. In the ordinary course of business, the Corporation sells the guaranteed portion of SBA loans to third parties. The Corporation has a continuing involvement in each of the transferred lending arrangements by way of relationship management, servicing the loans, as well as being subject to normal and customary requirements of the SBA loan program; however, there are no further obligations to the third-party participant required of the Corporation, other than standard representations and warranties related to sold amounts. In the event of a loss resulting from default and a determination by the SBA that there is a deficiency in the manner in which the loan was originated, funded or serviced by the Corporation, the SBA may require the Corporation to repurchase the loan, deny its liability under the guaranty, reduce the amount of the guaranty, or, if it has already paid under the guaranty, seek recovery of the principal loss related to the deficiency from the Corporation. The Corporation must comply with applicable SBA regulations in order to maintain the guaranty. In addition, the Corporation retains the option to repurchase the sold guaranteed portion of an SBA loan if the loan defaults. See Note 18 for additional information on the SBA recourse reserve. Other Investments. The Corporation owns certain equity investments in other corporate organizations which are not consolidated because the Corporation does not own more than a 50% interest or exercise control over the organization. Investments in corporations representing at least a 20% interest are generally accounted for using the equity method and investments in corporations representing less than 20% interest are generally accounted for at cost. Investments in limited partnerships representing from at least a 3% up to a 50% interest in the entity are generally accounted for using the equity method and investments in limited partnerships representing less than 3% are generally accounted for at cost. All of these investments are periodically evaluated for impairment. Should an investment be impaired, it would be written down to its estimated fair value. The equity investments are reported in other assets and the income and expense from such investments, if any, is reported in non-interest income and non-interest expense. Derivative Instruments. The Corporation uses derivative instruments to protect against the risk of adverse price or interest rate movements on the value of certain assets, liabilities, future cash flows and economic hedges for written client derivative contracts. Derivative instruments represent contracts between parties that usually require little or no initial net investment and result in one party delivering cash to the other party based on a notional amount and an underlying as specified in the contract and may be subject to master netting agreements. A notional amount represents the number of units of a specific item, such as currency units. An underlying represents a variable, such as an interest rate. The amount of cash delivered from one party to the other is determined based on the interaction of the notional amount of the contract with the underlying. Market risk is the risk of loss arising from an adverse change in interest rates, exchange rates or equity prices. The Corporation’s primary market risk is interest rate risk. Instruments designed to manage interest rate risk include interest rate swaps, interest rate options and interest rate caps and floors with indices that relate to the pricing of specific assets and liabilities. The nature and volume of the derivative instruments used to manage interest rate risk depend on the level and type of assets and liabilities on the balance sheet and the risk management strategies for the current and anticipated rate environments. Counterparty risk with respect to derivative instruments occurs when a counterparty to a derivative contract with an unrealized gain fails to perform according to the terms of the agreement. Counterparty risk is managed by limiting the counterparties to highly rated dealers, requiring collateral postings when values are in deficit positions, applying uniform credit standards to all activities with credit risk and monitoring the size and the maturi

Cash and Cash Equivalents

Cash and Cash Equivalents	12 Months Ended
	Dec. 31, 2016
Cash and Cash Equivalents [Abstract]
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and due from banks was approximately $14.6 million at December 31, 2016 and 2015 . Required reserves in the form of either vault cash or deposits held at the FRB were $6.4 million and $3.9 million at December 31, 2016 and 2015 , respectively. FRB balances were $40.9 million and $84.9 million at December 31, 2016 and 2015 , respectively, and are included in short-term investments on the Consolidated Balance Sheets. Short-term investments, considered cash equivalents, were $62.9 million and $98.9 million at December 31, 2016 and 2015 , respectively.

Securities

Securities	12 Months Ended
	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Securities	Securities The amortized cost and fair value of securities available-for-sale and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income were as follows: As of December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (In Thousands) Available-for-sale: U.S. Government agency obligations - government-sponsored enterprises $ 6,298 $ 7 $ (10 ) $ 6,295 Municipal obligations 8,246 2 (92 ) 8,156 Asset-backed securities 1,116 — (35 ) 1,081 Collateralized mortgage obligations - government issued 30,936 423 (146 ) 31,213 Collateralized mortgage obligations - government-sponsored enterprises 99,865 252 (969 ) 99,148 $ 146,461 $ 684 $ (1,252 ) $ 145,893 As of December 31, 2015 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (In Thousands) Available-for-sale: U.S. Government agency obligations - government-sponsored enterprises $ 8,047 $ 2 $ (32 ) $ 8,017 Municipal obligations 4,278 12 (7 ) 4,283 Asset-backed securities 1,327 — (58 ) 1,269 Collateralized mortgage obligations - government issued 43,845 814 (116 ) 44,543 Collateralized mortgage obligations - government-sponsored enterprises 82,707 145 (416 ) 82,436 $ 140,204 $ 973 $ (629 ) $ 140,548 The amortized cost and fair value of securities held-to-maturity and the corresponding amounts of gross unrealized gains and losses were as follows: As of December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (In Thousands) Held-to-maturity: U.S. Government agency obligations - government-sponsored enterprises $ 1,497 $ 2 $ (5 ) $ 1,494 Municipal obligations 21,173 62 (78 ) 21,157 Collateralized mortgage obligations - government issued 9,148 17 (38 ) 9,127 Collateralized mortgage obligations - government-sponsored enterprises 6,794 6 (58 ) 6,742 $ 38,612 $ 87 $ (179 ) $ 38,520 As of December 31, 2015 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (In Thousands) Held-to-maturity: U.S. Government agency obligations - government-sponsored enterprises $ 1,495 $ 1 $ (11 ) $ 1,485 Municipal obligations 16,038 332 (5 ) 16,365 Collateralized mortgage obligations - government issued 11,718 32 (41 ) 11,709 Collateralized mortgage obligations - government-sponsored enterprises 8,031 12 (44 ) 7,999 $ 37,282 $ 377 $ (101 ) $ 37,558 U.S. Government agency obligations - government-sponsored enterprises represent securities issued by the Federal Home Loan Mortgage Corporation (“FHLMC”) and Federal National Mortgage Association (“FNMA”). Municipal obligations include securities issued by various municipalities located primarily within the State of Wisconsin and are primarily general obligation bonds that are tax-exempt in nature. Asset-backed securities represent securities issued by the Student Loan Marketing Association (“SLMA”) which are 97% guaranteed by the U.S. Government. Collateralized mortgage obligations - government issued represent securities guaranteed by the Government National Mortgage Association (“GNMA”). Collateralized mortgage obligations - government-sponsored enterprises include securities guaranteed by the FHLMC and the FNMA. For the year ended December 31, 2016, a gain of $10,000 was recorded from the sale of five available-for-sale securities. No sales of available-for-sale securities occurred during the years ended December 31, 2015 and 2014. At December 31, 2016 and 2015 , securities with a fair value of $22.4 million and $23.0 million , respectively, were pledged to secure interest rate swap contracts, outstanding FHLB advances, if any, and additional FHLB availability. The amortized cost and fair value of securities by contractual maturity at December 31, 2016 are shown below. Actual maturities may differ from contractual maturities because issuers have the right to call or prepay certain obligations without call or prepayment penalties. Available-for-Sale Held-to-Maturity Amortized Cost Fair Value Amortized Cost Fair Value (In Thousands) Due in one year or less $ 4,532 $ 4,532 $ — $ — Due in one year through five years 15,308 15,245 7,111 7,100 Due in five through ten years 66,396 66,710 13,994 13,978 Due in over ten years 60,225 59,406 17,507 17,442 $ 146,461 $ 145,893 $ 38,612 $ 38,520 The tables below show the Corporation’s gross unrealized losses and fair value of available-for-sale investments with unrealized losses aggregated by investment category and length of time that individual investments were in a continuous loss position at December 31, 2016 and 2015 . At December 31, 2016 , the Corporation held 108 available-for-sale securities that were in an unrealized loss position. Such securities have not experienced credit rating downgrades; however, they have primarily declined in value due to the current interest rate environment. At December 31, 2016 , the Corporation held seven available-for-sale securities that had been in a continuous unrealized loss position for twelve months or greater. The Corporation also has not specifically identified available-for-sale securities in a loss position that it intends to sell in the near term and does not believe that it will be required to sell any such securities. The Corporation reviews its securities on a quarterly basis to monitor its exposure to other-than-temporary impairment. Consideration is given to such factors as the length of time and extent to which the security has been in an unrealized loss position, changes in security ratings and an evaluation of the present value of expected future cash flows, if necessary. Based on the Corporation’s evaluation, it is expected that the Corporation will recover the entire amortized cost basis of each security. Accordingly, no other than temporary impairment was recorded in the Consolidated Statements of Income for the years ended December 31, 2016 and 2015 . A summary of unrealized loss information for securities available-for-sale, categorized by security type and length of time for which the security has been in a continuous unrealized loss position, follows: December 31, 2016 Less than 12 Months 12 Months or Longer Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized (In Thousands) Available-for-sale: U.S. Government agency obligations - government-sponsored enterprises $ 1,991 $ 10 $ — $ — $ 1,991 $ 10 Municipal obligations 7,207 89 406 3 7,613 92 Asset-backed securities — — 1,081 35 1,081 35 Collateralized mortgage obligations - government issued 10,552 130 493 16 11,045 146 Collateralized mortgage obligations - government-sponsored enterprises 54,843 931 1,819 38 56,662 969 $ 74,593 $ 1,160 $ 3,799 $ 92 $ 78,392 $ 1,252 December 31, 2015 Less than 12 Months 12 Months or Longer Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized (In Thousands) Available-for-sale: U.S. Government agency obligations - government-sponsored enterprises $ 3,536 $ 13 $ 1,981 $ 19 $ 5,517 $ 32 Municipal obligations 2,403 7 — — 2,403 7 Asset-backed securities 1,269 58 — — 1,269 58 Collateralized mortgage obligations - government issued 3,373 19 5,687 97 9,060 116 Collateralized mortgage obligations - government-sponsored enterprises 59,992 373 1,717 43 61,709 416 $ 70,573 $ 470 $ 9,385 $ 159 $ 79,958 $ 629 The tables below show the Corporation’s gross unrealized losses and fair value of held-to-maturity investments, aggregated by investment category and length of time that individual investments were in a continuous loss position at December 31, 2016 and 2015 . At December 31, 2016 , the Corporation held 57 held-to-maturity securities that were in an unrecognized loss position. Such securities have not experienced credit rating downgrades; however, they have primarily declined in value due to the current interest rate environment. There were no held-to-maturity securities that had been in a continuous loss position for twelve months or greater as of December 31, 2016 . It is expected that the Corporation will recover the entire amortized cost basis of each held-to-maturity security based upon an evaluation of the aforementioned factors. Accordingly, no other-than-temporary impairment was recorded in the Consolidated Statements of Income for the years ended December 31, 2016 and 2015 . A summary of unrealized loss information for securities held-to-maturity, categorized by security type and length of time for which the security has been in a continuous unrealized loss position, follows: December 31, 2016 Less than 12 Months 12 Months or Longer Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized (In Thousands) Held-to-maturity: U.S. Government agency obligations - government-sponsored enterprises $ 1,000 $ 5 $ — $ — $ 1,000 $ 5 Municipal obligations 9,472 78 — — 9,472 78 Collateralized mortgage obligations - government issued 6,980 38 — — 6,980 38 Collateralized mortgage obligations - government-sponsored enterprises 4,682 58 — — 4,682 58 $ 22,134 $ 179 $ — $ — $ 22,134 $ 179 December 31, 2015 Less than 12 Months 12 Months or Longer Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized (In Thousands) Held-to-maturity: U.S. Government agency obligations - government-sponsored enterprises $ — $ — $ 1,000 $ 11 $ 1,000 $ 11 Municipal obligations 436 4 199 1 635 5 Collateralized mortgage obligations - government issued 6,518 $ 41 — — 6,518 41 Collateralized mortgage obligations - government-sponsored enterprises 5,168 44 — — 5,168 44 $ 12,122 $ 89 $ 1,199 $ 12 $ 13,321 $ 101

Loan and Lease Receivables, Imp

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses	Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses Loan and lease receivables consist of the following: December 31, December 31, (In Thousands) Commercial real estate: Commercial real estate — owner occupied $ 176,459 $ 176,322 Commercial real estate — non-owner occupied 473,158 436,901 Land development 56,638 59,779 Construction 101,206 100,625 Multi-family 92,762 80,254 1-4 family 45,651 50,304 Total commercial real estate 945,874 904,185 Commercial and industrial 450,298 472,193 Direct financing leases, net 30,951 31,093 Consumer and other: Home equity and second mortgages 8,412 8,237 Other 16,329 16,319 Total consumer and other 24,741 24,556 Total gross loans and leases receivable 1,451,864 1,432,027 Less: Allowance for loan and lease losses 20,912 16,316 Deferred loan fees 1,189 1,062 Loans and leases receivable, net $ 1,429,763 $ 1,414,649 As of December 31, 2016 and 2015 , the total amount of the Corporation’s ownership of SBA loans on the Consolidated Balance Sheets was $62.1 million and $53.2 million , respectively. As of December 31, 2016 and 2015 , $5.5 million and $1.1 million of loans in this portfolio were considered impaired, respectively. Loans transferred to third parties consist of the guaranteed portion of SBA loans which the Corporation sold in the secondary market, as well as participation interests in other originated loans. The total principal amount of the guaranteed portion of SBA loans sold during the year ended December 31, 2016 and 2015 was $41.2 million and $40.2 million , respectively. Each of the transfers of these financial assets met the qualifications for sale accounting, and therefore, all of the loans transferred during the year ended December 31, 2016 and 2015 have been derecognized in the Consolidated Financial Statements. The guaranteed portion of SBA loans were transferred at their fair value and the related gain was recognized upon the transfer as non-interest income in the Consolidated Financial Statements. The total outstanding balance of sold SBA loans at December 31, 2016 and 2015 was $105.1 million and $78.2 million , respectively, while the retained, unguaranteed portion of sold SBA loans on the Corporation’s Consolidated Balance Sheets was $32.2 million and $26.2 million as of December 31, 2016 and 2015 , respectively. The total principal amount of transferred participation interests in other originated commercial loans during the year ended December 31, 2016 and 2015 was $17.6 million and $26.8 million , respectively, all of which were treated as sales and derecognized under the applicable accounting guidance at the time of transfer. No gain or loss was recognized on participation interests in other originated loans as they were transferred at or near the date of loan origination and the payments received for servicing the portion of the loans participated represents adequate compensation. The total outstanding balance of these transferred loans at December 31, 2016 and 2015 was $102.7 million and $91.0 million , respectively. As of December 31, 2016 and 2015 , the total amount of the Corporation’s partial ownership of these transferred loans on the Consolidated Balance Sheets was $106.1 million and $110.6 million , respectively. No loans in this participation portfolio were considered impaired as of December 31, 2016 and 2015 . The Corporation does not share in the participant’s portion of any potential charge-offs. The total amount of loan participations purchased on the Consolidated Balance Sheets as of December 31, 2016 and 2015 was $1.2 million and $1.8 million , respectively. The Corporation also sells residential real estate loans, servicing released, in the secondary market. The total principal amount of residential real estate loans sold during the year ended December 31, 2016 and 2015 was $26.3 million and $32.6 million , respectively. Each of the transfers of these financial assets met the qualifications for sale accounting, and therefore all of the loans transferred have been derecognized in the Consolidated Financial Statements. The loans were transferred at their fair value and the related gain was recognized as non-interest income upon the transfer in the Consolidated Financial Statements. According to ASC 310-30, Accounting for Certain Loans or Debt Securities Acquired in a Transfer , purchased credit-impaired loans exhibit evidence of deterioration in credit quality since origination for which it is probable at acquisition that the Corporation will be unable to collect all contractually required payments. Purchased credit-impaired loans are initially recorded at fair value, which is estimated by discounting the cash flows expected to be collected at the acquisition date. Because the estimate of expected cash flows reflects an estimate of future credit losses expected to be incurred over the life of the loans, an allowance for credit losses is not recorded at the acquisition date. The excess of cash flows expected at acquisition over the estimated fair value, referred to as the accretable yield, is recognized in interest income over the remaining life of the loan on a level-yield basis, contingent on the subsequent evaluation of future expected cash flows. The difference between the contractually required payments at acquisition and the cash flows expected to be collected at acquisition is referred to as the nonaccretable difference. A subsequent decrease in the estimate of cash flows expected to be received on purchased credit-impaired loans generally results in the recognition of an allowance for loan and lease losses. Subsequent increases in cash flows result in reversal of any nonaccretable difference (or allowance for loan and lease losses to the extent any has been recorded) with a positive impact on interest income recognized. The measurement of cash flows involves assumptions and judgments for interest rates, prepayments, default rates, loss severity and collateral values. All of these factors are inherently subjective and significant changes in the cash flow estimates over the life of the loan can result. The following table reflects the contractually required payments receivable and fair value of the Corporation’s purchased credit-impaired loans as of December 31, 2016 and 2015 : December 31, December 31, (In Thousands) Contractually required payments $ 3,265 $ 5,291 Fair value of purchased credit-impaired loans 1,432 3,250 The following table presents a rollforward of the accretable yield for the year ended December 31, 2016 and 2015 : December 31, December 31, (In Thousands) Accretable yield, beginning of period $ 414 $ 676 Accretion recognized in interest income (129 ) (50 ) Reclassification to nonaccretable difference for loans with changing cash flows (1) (244 ) (60 ) Changes in accretable yield for non-credit related changes in expected cash flows (2) 94 (152 ) Accretable yield, end of period $ 135 $ 414 (1) Represents changes in accretable yield for those loans that are driven primarily by credit performance. (2) Represents changes in accretable yield for those loans that are driven primarily by changes in actual and estimated payments. Certain of the Corporation’s executive officers, directors and their related interests are loan clients of the Banks. As of December 31, 2016 and 2015 , loans aggregating approximately $6.3 million and $6.9 million , respectively, were outstanding to such parties. New loans granted to such parties during the years ended December 31, 2016 and 2015 were approximately $673,000 and $3.9 million and repayments on such loans were approximately $1.3 million and $1.4 million , respectively. These loans were made in the ordinary course of business and on substantially the same terms as those prevailing at the time for comparable loans not related to the lender. None of these loans were considered impaired as of December 31, 2016 or 2015 . The following information illustrates ending balances of the Corporation’s loan and lease portfolio, including impaired loans by class of receivable, and considering certain credit quality indicators as of December 31, 2016 and 2015 : December 31, 2016 Category I II III IV Total (Dollars in Thousands) Commercial real estate: Commercial real estate — owner occupied $ 142,704 $ 20,294 $ 11,174 $ 2,287 $ 176,459 Commercial real estate — non-owner occupied 447,895 20,933 2,721 1,609 473,158 Land development 52,082 823 293 3,440 56,638 Construction 93,510 3,154 1,624 2,918 101,206 Multi-family 87,418 1,937 3,407 — 92,762 1-4 family 38,504 3,144 1,431 2,572 45,651 Total commercial real estate 862,113 50,285 20,650 12,826 945,874 Commercial and industrial 348,201 42,949 46,675 12,473 450,298 Direct financing leases, net 29,351 1,600 — — 30,951 Consumer and other: Home equity and second mortgages 8,271 121 12 8 8,412 Other 15,714 — 11 604 16,329 Total consumer and other 23,985 121 23 612 24,741 Total gross loans and leases receivable $ 1,263,650 $ 94,955 $ 67,348 $ 25,911 $ 1,451,864 Category as a % of total portfolio 87.04 % 6.54 % 4.64 % 1.78 % 100.00 % December 31, 2015 Category I II III IV Total (Dollars in Thousands) Commercial real estate: Commercial real estate — owner occupied $ 156,379 $ 7,654 $ 9,311 $ 2,978 $ 176,322 Commercial real estate — non-owner occupied 410,517 20,662 3,408 2,314 436,901 Land development 52,817 2,241 309 4,412 59,779 Construction 98,693 851 564 517 100,625 Multi-family 79,368 884 — 2 80,254 1-4 family 41,086 3,985 1,865 3,368 50,304 Total commercial real estate 838,860 36,277 15,457 13,591 904,185 Commercial and industrial 430,199 7,139 25,706 9,149 472,193 Direct financing leases, net 29,514 1,013 528 38 31,093 Consumer and other: Home equity and second mortgages 7,497 — 141 599 8,237 Other 15,616 48 — 655 16,319 Total consumer and other 23,113 48 141 1,254 24,556 Total gross loans and leases receivable $ 1,321,686 $ 44,477 $ 41,832 $ 24,032 $ 1,432,027 Category as a % of total portfolio 92.29 % 3.11 % 2.92 % 1.68 % 100.00 % Credit underwriting through a committee process is a key component of the Corporation’s operating philosophy. Commercial lenders have relatively low individual lending authority limits, and thus a significant portion of the Corporation’s new credit extensions require approval from a loan approval committee regardless of the type of loan or lease, asset quality grade of the credit, amount of the credit or the related complexities of each proposal. Each credit is evaluated for proper risk rating upon origination, at the time of each subsequent renewal, upon receipt and evaluation of updated financial information from the Corporation’s borrowers or as other circumstances dictate. The Corporation uses a nine grade risk rating system to monitor the ongoing credit quality of its loans and leases. The risk rating grades follow a consistent definition and are then applied to specific loan types based on the nature of the loan. Each risk rating is subjective and, depending on the size and nature of the credit, subject to various levels of review and concurrence on the stated risk rating. In addition to its nine grade risk rating system, the Corporation groups loans into four loan and related risk categories which determine the level and nature of review by management. Category I — Loans and leases in this category are performing in accordance with the terms of the contract and generally exhibit no immediate concerns regarding the security and viability of the underlying collateral, financial stability of the borrower, integrity or strength of the borrower’s management team or the industry in which the borrower operates. Loans and leases in this category are not subject to additional monitoring procedures above and beyond what is required at the origination or renewal of the loan or lease. The Corporation monitors Category I loans and leases through payment performance, continued maintenance of its personal relationships with such borrowers and continued review of such borrowers’ compliance with the terms of their respective agreements. Category II — Loans and leases in this category are beginning to show signs of deterioration in one or more of the Corporation’s core underwriting criteria such as financial stability, management strength, industry trends or collateral values. Management will place credits in this category to allow for proactive monitoring and resolution with the borrower to possibly mitigate the area of concern and prevent further deterioration or risk of loss to the Corporation. Category II loans are considered performing but are monitored frequently by the assigned business development officer and by subcommittees of the Banks’ loan committees. Category III — Loans and leases in this category are identified by management as warranting special attention. However, the balance in this category is not intended to represent the amount of adversely classified assets held by the Banks. Category III loans and leases generally exhibit undesirable characteristics, such as evidence of adverse financial trends and conditions, managerial problems, deteriorating economic conditions within the related industry or evidence of adverse public filings and may exhibit collateral shortfall positions. Management continues to believe that it will collect all contractual principal and interest in accordance with the original terms of the contracts relating to the loans and leases in this category, and therefore Category III loans are considered performing with no specific reserves established for this category. Category III loans are monitored by management and the Banks’ loan committees on a monthly basis and the Banks’ boards of directors at each of their regularly scheduled meetings. Category IV — Loans and leases in this category are considered to be impaired. Impaired loans and leases have been placed on non-accrual as management has determined that it is unlikely that the Banks will receive the contractual principal and interest in accordance with the original terms of the agreement. Impaired loans are individually evaluated to assess the need for the establishment of specific reserves or charge-offs. When analyzing the adequacy of collateral, the Corporation obtains external appraisals at least annually for impaired loans and leases. External appraisals are obtained from the Corporation’s approved appraiser listing and are independently reviewed to monitor the quality of such appraisals. To the extent a collateral shortfall position is present, a specific reserve or charge-off will be recorded to reflect the magnitude of the impairment. Loans and leases in this category are monitored by management and the Banks’ loan committees on a monthly basis and the Banks’ boards of directors at each of their regularly scheduled meetings. Utilizing regulatory classification terminology, the Corporation identified $34.3 million and $26.8 million of loans and leases as Substandard as of December 31, 2016 and 2015 , respectively. No loans were considered Special Mention, Doubtful or Loss as of either December 31, 2016 or 2015 . The population of Substandard loans is a subset of Category III and Category IV loans. The delinquency aging of the loan and lease portfolio by class of receivable as of December 31, 2016 and 2015 were as follows: December 31, 2016 30-59 60-89 Greater Total Past Due Current Total (Dollars in Thousands) Accruing loans and leases Commercial real estate: Owner occupied $ — $ — $ — $ — $ 174,236 $ 174,236 Non-owner occupied — — — — 471,549 471,549 Land development — — — — 53,198 53,198 Construction — — — — 98,288 98,288 Multi-family — — — — 92,762 92,762 1-4 family 75 — — 75 43,639 43,714 Commercial and industrial 55 468 — 523 437,312 437,835 Direct financing leases, net — — — — 30,951 30,951 Consumer and other: Home equity and second mortgages — — — — 8,412 8,412 Other — — — — 15,725 15,725 Total $ 130 $ 468 $ — $ 598 $ 1,426,072 $ 1,426,670 Non-accruing loans and leases Commercial real estate: Owner occupied $ — $ — $ 1,183 $ 1,183 $ 1,040 $ 2,223 Non-owner occupied — — — — 1,609 1,609 Land development — — — — 3,440 3,440 Construction 2,482 — 436 2,918 — 2,918 Multi-family — — — — — — 1-4 family — — 1,240 1,240 697 1,937 Commercial and industrial 3,345 168 6,740 10,253 2,210 12,463 Direct financing leases, net — — — — — — Consumer and other: Home equity and second mortgages — — — — — — Other 186 — 378 564 40 604 Total $ 6,013 $ 168 $ 9,977 $ 16,158 $ 9,036 $ 25,194 Total loans and leases Commercial real estate: Owner occupied $ — $ — $ 1,183 $ 1,183 $ 175,276 $ 176,459 Non-owner occupied — — — — 473,158 473,158 Land development — — — — 56,638 56,638 Construction 2,482 — 436 2,918 98,288 101,206 Multi-family — — — — 92,762 92,762 1-4 family 75 — 1,240 1,315 44,336 45,651 Commercial and industrial 3,400 636 6,740 10,776 439,522 450,298 Direct financing leases, net — — — — 30,951 30,951 Consumer and other: Home equity and second mortgages — — — — 8,412 8,412 Other 186 — 378 564 15,765 16,329 Total $ 6,143 $ 636 $ 9,977 $ 16,756 $ 1,435,108 $ 1,451,864 Percent of portfolio 0.42 % 0.04 % 0.69 % 1.15 % 98.85 % 100.00 % December 31, 2015 30-59 60-89 Greater Total Past Due Current Total (Dollars in Thousands) Accruing loans and leases Commercial real estate: Owner occupied $ — $ — $ — $ — $ 173,416 $ 173,416 Non-owner occupied — — — — 435,222 435,222 Land development — — — — 55,386 55,386 Construction — — — — 100,228 100,228 Multi-family — — — — 80,252 80,252 1-4 family 78 — — 78 47,676 47,754 Commercial and industrial — — — — 463,057 463,057 Direct financing leases, net — — — — 31,055 31,055 Consumer and other: Home equity and second mortgages — — — — 7,695 7,695 Other — — — — 15,664 15,664 Total $ 78 $ — $ — $ 78 $ 1,409,651 $ 1,409,729 Non-accruing loans and leases Commercial real estate: Owner occupied $ — $ 473 $ — $ 473 $ 2,433 $ 2,906 Non-owner occupied — — — — 1,679 1,679 Land development — — — — 4,393 4,393 Construction 397 — — 397 — 397 Multi-family — — — — 2 2 1-4 family 430 34 895 1,359 1,191 2,550 Commercial and industrial 2,077 — 564 2,641 6,495 9,136 Direct financing leases, net — — — — 38 38 Consumer and other: Home equity and second mortgages — — 250 250 292 542 Other — — 655 655 — 655 Total $ 2,904 $ 507 $ 2,364 $ 5,775 $ 16,523 $ 22,298 Total loans and leases Commercial real estate: Owner occupied $ — $ 473 $ — $ 473 $ 175,849 $ 176,322 Non-owner occupied — — — — 436,901 436,901 Land development — — — — 59,779 59,779 Construction 397 — — 397 100,228 100,625 Multi-family — — — — 80,254 80,254 1-4 family 508 34 895 1,437 48,867 50,304 Commercial and industrial 2,077 — 564 2,641 469,552 472,193 Direct financing leases, net — — — — 31,093 31,093 Consumer and other: Home equity and second mortgages — — 250 250 7,987 8,237 Other — — 655 655 15,664 16,319 Total $ 2,982 $ 507 $ 2,364 $ 5,853 $ 1,426,174 $ 1,432,027 Percent of portfolio 0.21 % 0.04 % 0.16 % 0.41 % 99.59 % 100.00 % The Corporation’s total impaired assets consisted of the following at December 31, 2016 and 2015 , respectively. December 31, December 31, (In Thousands) Non-accrual loans and leases Commercial real estate: Commercial real estate — owner occupied $ 2,223 $ 2,907 Commercial real estate — non-owner occupied 1,609 1,678 Land development 3,440 4,393 Construction 2,918 397 Multi-family — 2 1-4 family 1,937 2,550 Total non-accrual commercial real estate 12,127 11,927 Commercial and industrial 12,463 9,136 Direct financing leases, net — 38 Consumer and other: Home equity and second mortgages — 542 Other 604 655 Total non-accrual consumer and other loans 604 1,197 Total non-accrual loans and leases 25,194 22,298 Foreclosed properties, net 1,472 1,677 Total non-performing assets 26,666 23,975 Performing troubled debt restructurings 717 1,735 Total impaired assets $ 27,383 $ 25,710 December 31, December 31, Total non-accrual loans and leases to gross loans and leases 1.74 % 1.56 % Total non-performing assets to total gross loans and leases plus foreclosed properties, net 1.83 1.67 Total non-performing assets to total assets 1.50 1.35 Allowance for loan and lease losses to gross loans and leases 1.44 1.14 Allowance for loan and lease losses to non-accrual loans and leases 83.00 73.17 As of December 31, 2016 and 2015 , $12.8 million and $16.2 million of the non-accrual loans and leases were considered troubled debt restructurings, respectively. There were no unfunded commitments associated with troubled debt restructured loans and leases as of December 31, 2016 . The following table provides the number of loans modified in a troubled debt restructuring and the pre- and post-modification recorded investment by class of receivable as of December 31, 2016 and 2015 : As of December 31, 2016 As of December 31, 2015 Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment (Dollars in Thousands) Commercial real estate: Commercial real estate — owner occupied 3 $ 1,065 $ 930 3 $ 1,209 $ 1,188 Commercial real estate — non-owner occupied 1 158 39 5 1,150 904 Land development 1 5,745 3,440 2 5,853 4,393 Construction 2 331 314 1 181 200 Multi-family — — — 1 184 2 1-4 family 11 1,391 1,393 15 2,035 1,869 Commercial and industrial 10 8,094 7,058 10 7,572 8,330 Consumer and other: Home equity and second mortgage 1 37 8 4 461 349 Other 1 2,076 378 1 2,076 655 Total 30 $ 18,897 $ 13,560 42 $ 20,721 $ 17,890 All loans and leases modified as a troubled debt restructuring are evaluated for impairment. The nature and extent of the impairment of restructured loans, including those which have experienced a default, is considered in the determination of an appropriate level of the allowance for loan and lease losses. As of December 31, 2016 and 2015 , the Corporation’s troubled debt restructurings grouped by type of concession were as follows: As of December 31, 2016 As of December 31, 2015 Number of Loans Post-Modification Recorded Investment Number of Loans Post-Modification Recorded Investment (Dollars in Thousands) Commercial real estate: Extension of term 1 $ 8 1 $ 24 Interest rate concession 1 52 1 55 Combination of extension of term and interest rate concession 16 6,056 25 8,477 Commercial and industrial: Combination of extension of term and interest rate concession 10 7,058 10 8,330 Consumer and other: Extension of term 1 378 1 655 Combination of extension of term and interest rate concession 1 8 4 349 Total 30 $ 13,560 42 $ 17,890 There were no loans and leases modified in a troubled debt restructuring during the previous 12 months which subsequently defaulted during the year ended December 31, 2016 . The following represents additional information regarding the Corporation’s impaired loans and leases, including performing troubled debt restructurings, by class: As of and for the Year Ended December 31, 2016 Recorded Investment Unpaid Principal Balance Impairment Reserve Average Recorded Investment (1) Foregone Interest Income Interest Income Recognized Net Foregone Interest Income (In Thousands) With no impairment reserve recorded: Commercial real estate: Owner occupied $ 1,788 $ 1,788 $ — $ 3,577 $ 328 $ 118 $ 210 Non-owner occupied 1,609 1,647 — 1,318 91 79 12 Land development 3,440 6,111 — 3,898 107 — 107 Construction 436 438 — 291 20 — 20 Multi-family — — — — 1 134 (133 ) 1-4 family 2,379 2,379 — 2,755 125 94 31 Commercial and industrial 3,769 3,769 — 918 143 62 81 Direct financing leases, net — — — 6 — — — Consumer and other: Home equity and second mortgages 8 8 — 307 16 127 (111 ) Other 604 1,270 — 529 71 — 71 Total $ 14,033 $ 17,410 $ — $ 13,599 $ 902 $ 614 $ 288 With impairment reserve recorded: Commercial real estate: Owner occupied $ 499 $ 499 $ 70 $ 111 $ 28 $ — $ 28 Non-owner occupied — — — — — — — Land development — — — — — — — Construction 2,482 2,482 1,790 834 45 — 45 Multi-family — — — — — — — 1-4 family 193 199 39 203 5 — 5 Commercial and industrial 8,704 8,704 3,700 8,239 637 — 637 Direct financing leases, net — — — — — — — Consumer and other: Home equity and second mortgages — — — — — — — Other — — — — — — — Total $ 11,878 $ 11,884 $ 5,599 $ 9,387 $ 715 $ — $ 715 Total: Commercial real estate: Owner occupied $ 2,287 $ 2,287 $ 70 $ 3,688 $ 356 $ 118 $ 238 Non-owner occupied 1,609 1,647 — 1,318 91 79 12 Land development 3,440 6,111 — 3,898 107 — 107 Construction 2,918 2,920 1,790 1,125 65 — 65 Multi-family — — — — 1 134 (133 ) 1-4 family 2,572 2,578 39 2,958 130 94 36 Commercial and industrial 12,473 12,473 3,700 9,157 780 62 718 Direct financing leases, net — — — 6 — — — Consumer and other: Home equity and second mortgages 8 8 — 307 16 127 (111 ) Other 604 1,270 — 529 71 — 71 Grand total $ 25,911 $ 29,294 $ 5,599 $ 22,986 $ 1,617 $ 614 $ 1,003 (1) Average recorded investment is calculated primarily using daily average balances. As of and for the Year Ended December 31, 2015 Recorded Investment Unpaid Principal Balance Impairment Reserve Average Recorded Investment (1) Foregone Interest Income Interest Income Recognized Net Foregone Interest Income (In Thousands) With no impairment reserve recorded: Commercial real estate: Owner occupied $ 2,164 $ 2,164 $ — $ 712 $ 53 $ 12 $ 41 Non-owner occupied 2,314 2,355 — 962 25 — 25 Land development 4,413 7,083 — 4,333 133 — 133 Construction 120 120 — — — 474 — — — — — Multi-family 2 369 — 10 27 — 27 1-4 family 2,423 2,486 — 1,604 82 4 78 Commercial and industrial 2,546 2,590 — 544 172 6 166 Direct financing leases, net 38 38 — 4 — — — Consumer and other: Home equity and second mortgages 500 500 — 390 23 63 (40 ) Other 655 1,321 — 688 82 — 82 Total $ 15,175 $ 19,026 $ — $ 9,721 $ 597 $ 85 $ 512 With impairment reserve recorded: Commercial real estate: Owner occupied $ 814 $ 814 $ 20 $ 215 $ 7 $ 2 $ 5 Non-owner occupied — — — — — — — Land development — — — — — — — — — — — Construction 397 397 — 48 — 34 — — — — — Multi-family — — — — — — — 1-4 family 945 950 173 605 34 — 34 Commercial and industrial 6,603 6,603 847 810 102 — 102 Direct financing leases, net — — — — — — — Consumer and other: Home equity and second mortgages 99 99 25 58 10 — 10 Other — — — — — — — Total $ 8,858 $ 8,863 $ 1,113 $ 1,722 $ 153 $ 2 $ 151 Total: Commercial real estate: Owner occupied $ 2,978 $ 2,978 $ 20 $ 927 $ 60 $ 14 $ 46 Non-owner occupied 2,314 2,355 — 962 25 — 25 Land development 4,413 7,083 — 4,333 133 — 133 Construction 517 517 48 508 — — — Multi-family 2 369 — 10 27 — 27 1-4 family 3,368 3,436 173 2,209 116 4 112 Commercial and industrial 9,149 9,193 847 1,354 274 6 268 Direct financing leases, net 38 38 — 4 — — — Consumer and other: Home equity and second mortgages 599 599 25 448 33 63 (30 ) Other 655 1,321 — 688 82 — 82 Grand total $ 24,033 $ 27,889 $ 1,113 $ 11,443 $ 750 $ 87 $ 663 (1) Average recorded investment is calculated primarily using daily average balances. As of and for the Year Ended December 31, 2014 Recorded Investment Unpaid Principal Balance Impairment Reserve Average Recorded Investment (1) Foregone Interest Income Interest Income Recognized Net Foregone Interest Income (In Thousands) With no impairment reserve recorded: Commercial real estate: Owner occupied $ 577 $ 577 $ — $ 484 $ 30 $ 79 $ (49 ) Non-owner occupied 921 921 — 349 22 — 22 Land development 4,962 7,633 — 5,253 155 — 155 Construction 195 195 — 32 — — — Multi-family 17 384 — 24 53 — 53 1-4 family 1,181 1,218 — 380 15 12 3 Commercial and industrial 2,316 2,926 — 6,141 463 649 (186 ) Direct financing leases, net — — — — — — — Consumer and other: Home equity and second mortgages 380 380 — 495 18 — 18 Other 721 1,389 — 768 87 — 87 Total $ 11,270 $ 15,623 $ — $ 13,926 $ 843 $ 740 $ 103 With impairment reserve recorded: Commercial real estate: Owner occupied $ — $ — $ — $ — $ — $ — $ — Non-owner occupied 49 89 49 52 4 — 4 Land development — — — — — — — Construction — — — — — — — Multi-family — — — — — — — 1-4 family 390 390 155 405 18 — 18 Commercial and industrial 33 33 33 34 — — — Direct financing leases, net — — — — — — — Consumer and other: Home equity and second mortgages 53 53 53 57 5 — 5 Other — — — — — — — Total $ 525 $ 565 $ 290 $ 548 $ 27 $ — $ 27 Total: Commercial real estate: Owner occupied $ 577 $ 577 $ — $ 484 $ 30 $ 79 $ (49 ) Non-owner occupied 970 1,010 49 401 26 — 26 Land development 4,962 7,633 — 5,253 155 — 155 Construction 195 195 — 32 — — — Multi-family 17 384 — 24 53 — 53 1-4 family 1,571 1,608 155 785 33 12 21 Commercial and industrial 2,349 2,959 33 6,175 463 649 (186 ) Direct financing leases, net — — — — — — — Consumer and other: Home equity and second mortgages 433 433 53 552 23 — 23 Other 721 1,389 — 768 87 — 87 Grand total $ 11,795 $ 16,188 $ 290 $ 14,474 $ 870 $ 740 $ 130 (1) Average recorded investment is calculated primarily using daily average balances. The difference between the loans and leases recorded investment and the unpaid principal balance of $3.4 million , $3.9 million and $4.4 million as of December 31, 2016 , 2015 and 2014 , respectively, represents partial charge-offs resulting from losses due to the appraised value of the collateral securing the loans and leases being below the carrying values of the loans and leases. Impaired loans and leases also included $717,000 , $1.7 million and $2.0 million of loans as of December 31, 2016 , 2015 and 2014 , respectively, that were performing troubled debt restructurings, and thus, although not on non-accrual, were reported as impaired due to the concession in terms. When a loan is placed on non-accrual, interest accrual is discontinued and previously accrued but uncollected interest is deducted from interest income. Cash payments collected on non-accrual loans are first applied to such loan’s principal. Foregone interest represents the interest that was contractually due on the loan but not received or recorded. To the extent the amount of principal on a non-accrual loan is fully collected and additional cash is received, the Corporation will recognize interest income. To determine the level and composition of the allowance for loan and lease losses, the Corporation categorizes the portfolio into segments with similar risk characteristics. First, the Corporation evaluates loans and leases for potential impairment classification. The Corporation analyzes each loan and lease determined to be impaired on an individual basis to determine a specific reserve based upon the estimated value of the underlying collateral for collateral-dependent loans, or alternatively, the present value of expected cash flows. The Corporation applies historical trends from established risk factors to each category of loans and leases that has not been individually evaluated for the purpose of establishing the general portion of the allowance. A summary of the activity in the allowance for loan and lease losses by portfolio segment is as follows: As of and for the Year Ended December 31, 2016 Commercial Real Estate Commercial and Industrial Consumer and Other Total (Dollars in Thousands) Allowance for loan and lease losses: Beginning balance $ 11,220 $ 4,387 $ 709 $ 16,316 Charge-offs (1,194 ) (2,273 ) (127 ) (3,594 ) Recoveries 274 91 7 372 Provision 2,084 5,765 (31 ) 7,818 Ending balance $ 12,384 $ 7,970 $ 558 $ 20,912 Ending balance: individually evaluated for impairment $ 1,899 $ 3,700 $ — $ 5,599 Ending balance: collectively evaluated for impairment $ 10,485 $ 4,270 $ 558 $ 15,313 Ending balance: loans acquired with deteriorated credit quality $ — $ — $ — $ — Loans and lease receivables: Ending balance, gross $ 945,874 $ 481,249 $ 24,741 $ 1,451,864 Ending balance: individually evaluated for impairment $ 11,222 $ 12,452 $ 612 $ 24,286 Ending balance: collectively evaluated for impairment $ 933,048 $ 468,776 $ 24,129 $ 1,425,953 Ending balance: loans acquired with deteriorated credit quality $ 1,604 $ 21 $ — $ 1,625 Allowance as percent of gross loans and leases 1.31 % 1.66 % 2.26 % 1.44 % As of and for the Year Ended December 31, 2015 Commercial Real Estate Commercial and Industrial Consumer and Other Total (Dollars in Thousands) Allowance for loan and lease losses: Beginning balance $ 8,619 $ 5,492 $ 218 $ 14,329 Charge-offs (793 ) (711 ) (9 ) (1,513 ) Recoveries 104 6 4 114 Provision 3,290 (400 ) 496 3,386 Ending balance $ 11,220 $ 4,387 $ 709 $ 16,316 Ending balance: individually evaluated for impairment $ 240 $ 847 $ 26 $ 1,113 Ending balance: collectively evaluated for impairment $ 10,980 $ 3,540 $ 683 $ 15,203 Ending balance: loans acquired with deteriorated credit quality $ — $ — $ — $ — Loans and lease receivables: Ending balance, gross $ 904,185 $ 503,286 $ 24,556 $ 1,432,027 Ending balance: individually evaluated for impairment $ 10,84

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Leasehold Improvements and Equipment	Premises and Equipment A summary of premises and equipment at December 31, 2016 and 2015 is as follows: As of December 31, 2016 2015 (In Thousands) Land $ 650 $ 650 Building and leasehold improvements 3,019 2,879 Furniture and equipment 5,366 4,921 9,035 8,450 Less: accumulated depreciation (5,263 ) (4,496 ) Total premises and equipment, net $ 3,772 $ 3,954 Depreciation expense was $767,000 , $746,000 and $385,000 for the years ended December 31, 2016 , 2015 and 2014 , respectively.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure	Goodwill and Other Intangible Assets Goodwill is not amortized, but is subject to impairment tests on at least an annual basis and more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount (including goodwill). At December 31, 2016 and 2015 , the Corporation had goodwill of $10.7 million , which was entirely related to the acquisition of Alterra in 2014. The Corporation conducted its annual impairment test on July 1, 2016, utilizing a qualitative assessment, and concluded that it was more likely than not that Alterra’s estimated fair value exceeded its carrying value. Due to continued credit deterioration at Alterra and management’s decision to temporarily slow SBA production while investments to enhance the platform are made, management elected to again assess goodwill on November 30, 2016 by comparing the fair value of Alterra to its carrying value. The fair value of the reporting unit was determined based on a weighted average of the income and market approaches. The income approach establishes fair value based on estimated future cash flows of the reporting unit, discounted by an estimated weighted-average cost of capital developed using the capital asset pricing model, which reflects the overall level of inherent risk of the reporting unit. The income approach uses our projections of financial performance for a four-year period and includes assumptions about future revenue growth rates, operating margins and terminal values. The market approach establishes fair value by applying cash flow multiples to the respective reporting unit’s operating performance. The multiples are derived from other publicly traded companies that are similar but not identical from an operational and economic standpoint. Based on this assessment, there was no evidence of goodwill impairment as of November 30, 2016. Management also assessed external and internal qualitative factors through December 31, 2016 and determined no changes to factors occurred that would negatively impact the goodwill test. The Corporation has intangible assets that are amortized consisting of loan servicing rights and core deposit intangibles. Loan servicing rights are recognized upon sale of the guaranteed portion of SBA loans with servicing rights retained. When SBA loans are sold, servicing rights are initially recorded at fair value with the income statement effect recorded in gains on sales of loans. Loan servicing assets are subsequently measured using the amortization method, which requires servicing rights to be amortized into interest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans. For the year ended December 31, 2016 , 2015 and 2014 , loan servicing asset amortization totaled $639,000 , $197,000 and $24,000 , respectively. The estimated fair value of the Corporation’s loan servicing asset was $1.9 million and $1.6 million as of December 31, 2016 and 2015 , respectively. The Corporation periodically reviews this portfolio for impairment and engages a third-party valuation firm to assess the fair value of the overall servicing rights portfolio. The core deposit intangible has a finite life and is amortized by the straight-line method over a period of seven years. Changes in the gross carrying amount, accumulated amortization and net book value of core deposit intangibles were as follows: Year Ended December 31, 2016 2015 2014 (In Thousands) Gross carrying amount $ 347 $ 347 $ 347 Less: accumulated amortization 145 83 12 Net book value $ 202 $ 264 $ 335 Amortization during the period $ 62 $ 71 $ 12 Estimated amortization expense of core deposit intangibles for fiscal years 2017 through 2021 are as follows: (In Thousands) Estimate for the year ended December 31, 2017 $ 54 2018 47 2019 40 2020 35 2021 26 $ 202

Other Assets

Other Assets	12 Months Ended
	Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other Assets The Corporation is a limited partner in several limited partnership investments. The Corporation is not the general partner, does not have controlling ownership and is not the primary beneficiary in any of these limited partnerships and thus, the limited partnerships have not been consolidated. These investments are accounted for using the equity method of accounting and are evaluated for impairment at the end of each reporting period. For historic rehabilitation tax credits, the Corporation begins to evaluate its investments for impairment at the time the credit is earned, which is typically in the year the project is placed in service, through the end of its compliance period. New market tax credits are also evaluated for impairment beginning at the time the tax credits are earned on the project through the seven year compliance period. Historic Rehabilitation Tax Credits In 2015, the Corporation invested in a development entity through BOC Investment, LLC (“BOC”), a wholly-owned subsidiary of FBB, to acquire, rehabilitate and operate a historic building in Madison, Wisconsin. At December 31, 2016 and 2015 , the net carrying value of the investment was $174,000 and $578,000 , respectively. The Corporation contributed an additional $2.8 million to the project in 2016. During 2016 , the Corporation recognized $3.8 million in historic tax credits related to this investment and $3.3 million in impairment of the underlying investment. In 2016, the Corporation also invested in a development entity through Mitchell Street Apartments Investment, LLC (“Mitchell Street”), a wholly-owned subsidiary of FBB, to rehabilitate a historic building in Milwaukee, Wisconsin. At December 31, 2016 , the net carrying value of the investment was $563,000 . The aggregate capital contributions to the project will depend upon the final amount of the certified project costs, but are expected to approximate $5.5 million . The Corporation is also anticipating the sale of a portion of the state credits associated with the investment to a third party. No historic tax credits were received during the year ended December 31, 2016 . The credits are expected to be taken in the fourth quarter of 2017 when the project is placed in service and are subject to a five year recapture period. New Market Tax Credits The Corporation invested in a community development entity (“CDE”) through Rimrock Road Investment Fund LLC (“Rimrock”), a wholly-owned subsidiary of FBB, to develop and operate a real estate project located in a low-income community. At December 31, 2016 and 2015 , Rimrock had one CDE investment with a net carrying value of $7.1 million and $7.5 million respectively. The investment provides federal new market tax credits over a seven year credit allowance period through 2020. The remaining federal new market tax credit to be utilized over a maximum of seven years was $1.8 million as of December 31, 2016 . The Corporation’s usage of the federal new market tax credit was approximately $375,000 during the years ended December 31, 2016 and 2015 . Other Investments The Corporation had an equity investment in Aldine Capital Fund, LP, a mezzanine fund, of $883,000 and $1.0 million as of December 31, 2016 and 2015 , respectively. The Corporation’s equity investment in Aldine Capital Fund II, LP, also a mezzanine fund, totaled $3.1 million and $2.2 million as of December 31, 2016 and 2015 , respectively. The Corporation’s share of these partnerships’ income included in the Consolidated Statements of Income for the years ended December 31, 2016 and 2015 was $790,000 and $481,000 , respectively. The Corporation is the sole owner of $315,000 of common securities issued by FBFS Statutory Trust II (“Trust II”), a Delaware business trust. The purpose of Trust II was to complete the sale of $10.0 million of 10.50% fixed rate preferred securities. Trust II, a wholly owned subsidiary of the Corporation, was not consolidated into the financial statements of the Corporation. The investment in Trust II of $315,000 as of December 31, 2016 and 2015 is included in accrued interest receivable and other assets. A summary of accrued interest receivable and other assets as of December 31, 2016 and 2015 was as follows: December 31, 2016 December 31, 2015 (In Thousands) Accrued interest receivable $ 4,677 $ 4,412 Net deferred tax asset 4,052 2,633 Investment in limited partnerships 3,963 3,215 Investment in a CDE 7,106 7,500 Investment in historic development entities 737 578 Investment in Trust II 315 315 Fair value of interest rate swaps 352 552 Prepaid expenses 3,074 3,330 Other assets 4,331 1,536 Total accrued interest receivable and other assets $ 28,607 $ 24,071

Deposits

Deposits	12 Months Ended
	Dec. 31, 2016
Deposits [Abstract]
Deposits	Deposits The composition of deposits at December 31, 2016 and 2015 is as follows: December 31, 2016 December 31, 2015 Balance Average Balance Average Rate Balance Average Balance Average Rate (Dollars in Thousands) Non-interest-bearing transaction accounts $ 252,638 $ 246,182 — % $ 231,199 $ 211,945 — % Interest-bearing transaction accounts 183,992 169,571 0.27 165,921 125,558 0.24 Money market accounts 627,090 642,784 0.48 612,642 602,842 0.55 Certificates of deposit 58,454 65,608 0.90 79,986 106,177 0.78 Wholesale deposits 416,681 467,826 1.62 487,483 450,460 1.43 Total deposits $ 1,538,855 $ 1,591,971 0.74 $ 1,577,231 $ 1,496,982 0.73 A summary of annual maturities of certificates of deposit outstanding and wholesale deposits at December 31, 2016 is as follows: (In Thousands) Maturities during the year ended December 31, 2017 $ 145,615 2018 123,135 2019 68,089 2020 85,173 2021 21,476 Thereafter 31,647 $ 475,135 Deposits include approximately $8.9 million and $11.5 million of certificates of deposit and wholesale deposits which are denominated in amounts of $250,000 or more at December 31, 2016 and 2015 , respectively.

FHLB Advances, Other Borrowings

FHLB Advances, Other Borrowings and Junior Subordinated Notes	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
FHLB Advances, Other Borrowings and Junior Subordinated Notes	FHLB Advances, Other Borrowings and Junior Subordinated Notes The composition of borrowed funds at December 31, 2016 and 2015 was as follows. Weighted average balances represent year-to-date averages. December 31, 2016 December 31, 2015 Balance Weighted Average Balance Weighted Average Rate Balance Weighted Average Balance Weighted Average Rate (Dollars in Thousands) Federal funds purchased $ — $ 178 0.92 % $ — $ 237 0.86 % FHLB advances 33,578 14,485 0.97 8,198 14,779 0.75 Other borrowings 2,590 1,739 7.64 1,592 678 9.66 Line of credit 1,010 2,079 3.26 2,510 1,619 3.18 Subordinated notes payable 22,498 22,467 7.13 22,440 22,410 7.14 Junior subordinated notes 10,004 9,997 11.07 9,990 9,982 11.14 $ 69,680 $ 50,945 6.03 $ 44,730 $ 49,705 5.94 Short-term borrowings $ 20,588 $ 7,010 Long-term borrowings 49,092 37,720 $ 69,680 $ 44,730 The Corporation’s subsidiary banks, FBB and FBB-Milwaukee, are members of the FHLB of Chicago while Alterra is a member of the FHLB of Topeka. Accordingly, all three subsidiary banks of the Corporation are permitted to obtain advances. The Corporation has a $347.1 million FHLB line of credit available for advances and open line borrowings which is collateralized by mortgage-related securities, unencumbered first mortgage loans and secured small business loans as noted below. At December 31, 2016 , $313.6 million of this line remained unused. There were no advances outstanding on the Corporation’s open line at December 31, 2016 and 2015 . There were $33.6 million of term FHLB advances outstanding at December 31, 2016 with stated fixed interest rates ranging from 0.83% to 4.43% compared to $8.2 million of term FHLB advances outstanding at December 31, 2015 with stated fixed interest rate ranging from 0.89% to 4.96% . The term FHLB advances outstanding at December 31, 2016 are due at various dates through August 2019. The Corporation is required to maintain as collateral, mortgage-related securities and unencumbered first mortgage loans and secured small business loans in its portfolio aggregating at least the amount of outstanding advances from the FHLB. Loans totaling approximately $326.4 million and $75.0 million and collateralized mortgage obligations totaling approximately $20.7 million and $21.7 million were pledged as collateral for FHLB advances at December 31, 2016 and 2015 , respectively. The Corporation has a senior line of credit with a third-party financial institution of $10.5 million . As of December 31, 2016 , the line of credit carried an interest rate of LIBOR + 2.75% with an interest rate floor of 3.125% that matures on February 19, 2017 and had certain performance debt covenants of which the Corporation was in compliance. The Corporation pays a commitment fee on this senior line of credit. For the years ended December 31, 2016 and 2015 the Corporation incurred $13,000 additional interest expense due to this fee. On February 19, 2017 , the credit line was renewed for one additional year with pricing terms of LIBOR + 2.75% with an interest rate floor of 3.125% and a maturity date of February 19, 2018 . As of December 31, 2016 , the outstanding balance on the line of credit was $1.0 million . The Corporation has subordinated notes payable. At December 31, 2016 , the amount of subordinated notes payable outstanding was $22.5 million , which qualified for Tier 2 capital. At December 31, 2016 , $1.7 million of the subordinated notes bore an interest rate of LIBOR + 4.75% with an interest rate floor of 6.00% and a maturity date of May 15, 2021, $6.2 million bore a fixed interest rate of 7.50% and a maturity date of January 15, 2022 and $15.0 million bore a fixed interest rate of 6.50% with a maturity date of September 21, 2024. There are no debt covenants on the subordinated notes payable. The Corporation may, at its option, redeem the notes, in whole or part, at any time after the fifth anniversary of issuance. As of December 31, 2016, $428,000 of debt issuance costs remain in the subordinated notes payable balance. In September 2008 , Trust II completed the sale of $10.0 million of 10.50% fixed rate trust preferred securities (“Preferred Securities”). Trust II also issued common securities of $315,000 . Trust II used the proceeds from the offering to purchase $10.3 million of 10.50% junior subordinated notes (“Notes”) of the Corporation. The Preferred Securities are mandatorily redeemable upon the maturity of the Notes on September 26, 2038 . The Preferred Securities qualify under the risk-based capital guidelines as Tier 1 capital for regulatory purposes. Per the provisions of the Dodd-Frank Act, bank holding companies with total assets of less than $15 billion are not required to phase out trust preferred securities as an element of Tier 1 capital as other, larger institutions must. The Corporation used the proceeds from the sale of the Notes for general corporate purposes including providing additional capital to its subsidiaries. As of December 31, 2016 , $311,000 of debt issuance costs remain reflected in junior subordinated notes on the Consolidated Balance Sheets. The Corporation has the right to redeem the Notes at each interest payment date on or after September 26, 2013 . The Corporation also has the right to redeem the Notes, in whole but not in part, after the occurrence of certain special events. Special events are limited to: (1) a change in capital treatment resulting in the inability of the Corporation to include the Notes in Tier 1 capital, (2) a change in laws or regulations that could require Trust II to register as an investment company under the Investment Company Act of 1940, as amended; and (3) a change in laws or regulations that would require Trust II to pay income tax with respect to interest received on the Notes or, prohibit the Corporation from deducting the interest payable by the Corporation on the Notes or result in greater than a de minimis amount of taxes for Trust II.

Stockholders' Equity and Regula

Stockholders' Equity and Regulatory Capital	12 Months Ended
	Dec. 31, 2016
Regulatory Capital Requirements [Abstract]
Stockholders' Equity and Regulatory Capital	Regulatory Capital The Corporation and the Banks are subject to various regulatory capital requirements administered by Federal, State of Wisconsin and State of Kansas banking agencies. Failure to meet minimum capital requirements can result in certain mandatory, and possibly additional discretionary actions on the part of regulators, that if undertaken, could have a direct material effect on the Banks’ assets, liabilities and certain off-balance-sheet items as calculated under regulatory practices. The Corporation’s and the Banks’ capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. The Corporation regularly reviews and updates when appropriate its Capital and Liquidity Action Plan (the “Capital Plan”), which is designed to help ensure appropriate capital adequacy, to plan for future capital needs and to ensure that the Corporation serves as a source of financial strength to the Banks. The Corporation’s and the Banks’ Boards of Directors and management teams adhere to the appropriate regulatory guidelines on decisions which affect their respective capital positions, including but not limited to, decisions relating to the payment of dividends and increasing indebtedness. As a bank holding company, the Corporation’s ability to pay dividends is affected by the policies and enforcement powers of the Board of Governors of the Federal Reserve system (the “Federal Reserve”). Federal Reserve guidance urges companies to strongly consider eliminating, deferring or significantly reducing dividends if: (i) net income available to common shareholders for the past four quarters, net of dividends previously paid during that period, is not sufficient to fully fund the dividend; (ii) the prospective rate of earnings retention is not consistent with the bank holding company’s capital needs and overall current prospective financial condition; or (iii) the bank holding company will not meet, or is in danger of not meeting, its minimum regulatory capital ratios. Management intends, when appropriate under regulatory guidelines, to consult with the Federal Reserve Bank of Chicago and provide it with information on the Corporation’s then-current and prospective earnings and capital position in advance of declaring any cash dividends. As a Wisconsin corporation, the Corporation is subject to the limitations of the Wisconsin Business Corporation Law, which prohibit the Corporation from paying dividends if such payment would: (i) render the Corporation unable to pay its debts as they become due in the usual course of business, or (ii) result in the Corporation’s assets being less than the sum of its total liabilities plus the amount needed to satisfy the preferential rights upon dissolution of any stockholders with preferential rights superior to those stockholders receiving the dividend. The Banks are also subject to certain legal, regulatory and other restrictions on their ability to pay dividends to the Corporation. As a bank holding company, the payment of dividends by the Banks to the Corporation is one of the sources of funds the Corporation could use to pay dividends, if any, in the future and to make other payments. Future dividend decisions by the Banks and the Corporation will continue to be subject to compliance with various legal, regulatory and other restrictions as defined from time to time. Qualitative measures established by regulation to ensure capital adequacy require the Corporation and the Banks to maintain minimum amounts and ratios of Total Common Equity Tier 1 and Tier 1 capital to risk-weighted assets and of Tier 1 capital to adjusted total assets. These risk-based capital requirements presently address credit risk related to both recorded and off-balance-sheet commitments and obligations. Management believes, as of December 31, 2016 , that the Corporation and the Banks met all applicable capital adequacy requirements. In July 2013, the FRB and the FDIC approved the final rules implementing the Basel Committee on Banking Supervision’s (“BCBS”) capital guidelines for U.S. banks. These rules are applicable to all financial institutions that are subject to minimum capital requirements, including federal and state banks and savings and loan associations, as well as bank and savings and loan holding companies other than “small bank holding companies” (generally non-publicly traded bank holding companies with consolidated assets of less than $1 billion). Under the final rules, minimum requirements will increase for both the quantity and quality of capital held by the Corporation. The rules include a new Common Equity Tier 1 capital to risk-weighted assets minimum ratio of 4.5%, raise the minimum ratio of Tier 1 capital to risk-weighted assets from 4.0% to 6.0%, require a minimum ratio of Total Capital to risk-weighted assets of 8.0%, and require a minimum Tier 1 leverage ratio of 4.0%. The rules also permit banking organizations with less than $15 billion to retain, through one-time election, the existing treatment for accumulated other comprehensive income, which would not affect regulatory capital. The Corporation elected to retain this treatment, which reduces the volatility of regulatory capital ratios. A new capital conservation buffer, comprised of Common Equity Tier 1 capital, is also established above the regulatory minimum capital requirements. This capital conservation buffer will be phased in beginning January 1, 2016 at 0.625% of risk-weighted assets and increase each subsequent year by an additional 0.625% until reaching its final level of 2.5% on January 1, 2019. The phase-in period for the final rules became effective for the Corporation on January 1, 2015, with full compliance with all of the final rules’ requirements phased in over a multi-year schedule, to be fully phased-in by January 1, 2019. As of December 31, 2016 , the Corporation’s and the Banks’ capital levels remained characterized as well capitalized under the new rules. The following table summarizes both the Corporation’s and Banks’ capital ratios and the ratios required by their federal regulators at December 31, 2016 and 2015 , respectively: Actual Minimum Required for Capital Adequacy Purposes For Capital Adequacy Purposes Plus Capital Conservation Buffer Minimum Required to Be Well Capitalized Under Prompt Corrective Action Requirements Amount Ratio Amount Ratio Amount Ratio Amount Ratio (Dollars in Thousands) As of December 31, 2016 Total capital (to risk-weighted assets) Consolidated $ 204,117 11.74 % $ 139,101 8.00 % $ 149,968 8.625 % N/A N/A First Business Bank 147,811 11.55 102,362 8.00 110,360 8.625 $ 127,953 10.00 % First Business Bank – Milwaukee 24,347 11.02 17,680 8.00 19,062 8.625 22,101 10.00 Alterra Bank 31,699 13.27 19,106 8.00 20,599 8.625 23,882 10.00 Tier 1 capital (to risk-weighted assets) Consolidated $ 160,964 9.26 $ 104,326 6.00 $ 115,193 6.625 % N/A N/A First Business Bank 134,208 10.49 76,772 6.00 84,769 6.625 $ 102,362 8.00 First Business Bank – Milwaukee 22,323 10.10 13,260 6.00 14,642 6.625 17,680 8.00 Alterra Bank 28,685 12.01 14,329 6.00 15,822 6.625 19,106 8.00 Common equity tier 1 capital (to risk-weighted assets) Consolidated $ 150,960 8.68 $ 78,244 4.50 $ 89,111 5.125 % N/A N/A First Business Bank 134,208 10.49 57,579 4.50 65,576 5.125 $ 83,170 6.50 First Business Bank – Milwaukee 22,323 10.10 9,945 4.50 11,327 5.125 14,365 6.50 Alterra Bank 28,685 12.01 10,747 4.50 12,240 5.125 15,524 6.50 Tier 1 leverage capital (to adjusted assets) Consolidated $ 160,964 9.07 $ 70,985 4.00 $ 70,985 4.00 % N/A N/A First Business Bank 134,208 10.40 51,600 4.00 51,600 4.00 $ 64,500 5.00 First Business Bank – Milwaukee 22,323 9.15 9,758 4.00 9,758 4.00 12,198 5.00 Alterra Bank 28,685 10.58 10,842 4.00 10,842 4.00 13,552 5.00 Actual Minimum Required for Capital Adequacy Purposes Minimum Required to Be Well Capitalized Under Prompt Corrective Action Requirements Amount Ratio Amount Ratio Amount Ratio (Dollars in Thousands) As of December 31, 2015 Total capital (to risk-weighted assets) Consolidated $ 189,163 11.11 % $ 136,208 8.00 % N/A N/A First Business Bank 141,388 11.12 101,754 8.00 $ 127,193 10.00 % First Business Bank – Milwaukee 20,931 12.03 13,914 8.00 17,392 10.00 Alterra Bank 30,300 11.39 21,279 8.00 26,598 10.00 Tier 1 capital (to risk-weighted assets) Consolidated $ 149,920 8.81 % $ 102,156 6.00 % N/A N/A First Business Bank 128,852 10.13 76,316 6.00 $ 101,754 8.00 % First Business Bank – Milwaukee 19,172 11.02 10,435 6.00 13,914 8.00 Alterra Bank 28,278 10.63 15,959 6.00 21,279 8.00 Common equity tier 1 capital (to risk-weighted assets) Consolidated $ 139,920 8.22 % $ 76,617 4.50 % N/A N/A First Business Bank 128,852 10.13 57,237 4.50 $ 110,669 6.50 % First Business Bank – Milwaukee 19,172 11.02 7,826 4.50 82,675 6.50 Alterra Bank 28,278 10.63 11,969 4.50 11,305 6.50 Tier 1 leverage capital (to adjusted assets) Consolidated $ 149,920 8.63 % $ 69,466 4.00 % N/A N/A First Business Bank 128,852 10.44 49,359 4.00 $ 61,698 5.00 % First Business Bank – Milwaukee 19,172 7.81 9,821 4.00 12,276 5.00 Alterra Bank 28,278 9.89 11,441 4.00 14,301 5.00 The following table reconciles stockholders’ equity to federal regulatory capital at December 31, 2016 and 2015 , respectively: As of December 31, 2016 2015 (In Thousands) Stockholders’ equity of the Corporation $ 161,650 $ 150,832 Net unrealized and accumulated losses on specific items 522 80 Disallowed servicing assets (652 ) (370 ) Disallowed goodwill and other intangibles (10,560 ) (10,622 ) Junior subordinated notes 10,004 10,000 Tier 1 capital 160,964 149,920 Allowable general valuation allowances and subordinated debt 43,153 39,243 Total capital $ 204,117 $ 189,163

Earnings per Common Share

Earnings per Common Share	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Earnings per Common Share	Earnings per Common Share Earnings per common share are computed using the two-class method. Basic earnings per common share are computed by dividing net income allocated to common shares by the weighted average number of shares outstanding during the applicable period, excluding outstanding participating securities. Participating securities include unvested restricted shares. Unvested restricted shares are considered participating securities because holders of these securities receive non-forfeitable dividends at the same rate as holders of the Corporation’s common stock. Diluted earnings per share are computed by dividing net income allocated to common shares adjusted for reallocation of undistributed earnings of unvested restricted shares by the weighted average number of shares determined for the basic earnings per common share computation plus the dilutive effect of common stock equivalents using the treasury stock method. Effective November 1, 2014, the Corporation successfully completed the acquisition of Aslin Group, Inc. and Alterra. Under the terms of the definitive agreement, the Corporation issued 720,162 shares, on a post-split basis, to Aslin Group, Inc. shareholders as the stock portion of the consideration paid. This stock issuance impacted the Corporation’s earnings per share by increasing the number of shares outstanding. For the years ended December 31, 2016 and 2015 , there were no average anti-dilutive employee share-based awards. For the year ended December 31, 2014 , there were four average anti-dilutive employee share-based awards. All shares and earnings per share amounts have been adjusted to reflect the 2-for-1 stock split in the form of a 100% stock dividend completed in August 2015. For the Year Ended December 31, 2016 2015 2014 (Dollars in Thousands, Except Share Data) Basic earnings per common share Net income $ 14,909 $ 16,514 $ 14,139 Less: earnings allocated to participating securities 219 273 294 Basic earnings allocated to common shareholders $ 14,690 $ 16,241 $ 13,845 Weighted-average common shares outstanding, excluding participating securities 8,573,722 8,549,176 7,869,956 Basic earnings per common share $ 1.71 $ 1.90 $ 1.76 Diluted earnings per common share Earnings allocated to common shareholders $ 14,690 $ 16,241 $ 13,845 Reallocation of undistributed earnings — — 1 Diluted earnings allocated to common shareholders $ 14,690 $ 16,241 $ 13,846 Weighted-average common shares outstanding, excluding participating securities 8,573,722 8,549,176 7,869,956 Dilutive effect of share-based awards — 1,146 36,811 Weighted-average diluted common shares outstanding, excluding participating securities 8,573,722 8,550,322 7,906,767 Diluted earnings per common share $ 1.71 $ 1.90 $ 1.75

Share-Based Compensation

Share-Based Compensation	12 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	Share-Based Compensation The Corporation adopted the 2012 Equity Incentive Plan (the “Plan”) during the quarter ended June 30, 2012. The Plan is administered by the Compensation Committee of the Board of Directors of the Corporation and provides for the grant of equity ownership opportunities through incentive stock options and nonqualified stock options (together, “Stock Options”), restricted stock, restricted stock units, dividend equivalent units, and any other type of award permitted by the Plan. As of December 31, 2016 , 274,581 shares were available for future grants under the Plan. Shares covered by awards that expire, terminate or lapse will again be available for the grant of awards under the Plan. The Corporation may issue new shares and shares from its treasury stock for shares delivered under the Plan. Restricted Stock Under the Plan, the Corporation may grant restricted stock to plan participants, subject to forfeiture upon the occurrence of certain events until the dates specified in the participant’s award agreement. While restricted stock is subject to forfeiture, with the exception of restricted stock units, which do not have voting rights and are provided dividend equivalents, restricted stock participants may exercise full voting rights and will receive all dividends and other distributions paid with respect to the restricted shares. The restricted stock granted under the Plan is typically subject to a vesting period. Compensation expense is recognized over the requisite service period of generally four years for the entire award on a straight-line basis. Upon vesting of restricted share awards, the benefit of tax deductions in excess of recognized compensation expense is reflected as an income tax benefit in the Consolidated Statements of Income. Restricted stock activity for the year ended December 31, 2016 , 2015 and 2014 was as follows: For the Year Ended December 31, 2016 2015 2014 Number of Restricted Shares Weighted Average Grant-Date Fair Value Number of Restricted Shares Weighted Average Grant-Date Fair Value Number of Restricted Shares Weighted Average Grant-Date Fair Value Nonvested balance at beginning of year 135,471 $ 20.13 154,998 $ 16.97 169,418 $ 11.55 Granted 60,415 22.74 53,790 22.52 64,522 22.49 Vested (56,090 ) 18.71 (64,874 ) 15.23 (78,942 ) 9.86 Forfeited (23,551 ) 20.90 (8,443 ) 15.03 — — Nonvested balance as of end of year 116,245 21.13 135,471 20.13 154,998 16.97 As of December 31, 2016 , the Corporation had $2.2 million of deferred unvested compensation expense, which the Corporation expects to recognize over a weighted-average period of approximately 2.8 years. For the years ended December 31, 2016 , 2015 and 2014 , share-based compensation expense related to restricted stock included in the Consolidated Statements of Income was as follows: For the Year Ended December 31, 2016 2015 2014 (In Thousands) Share-based compensation expense $ 994 $ 1,063 $ 887

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Employee Benefit Plans	Employee Benefit Plans The Corporation maintains a contributory 401(k) defined contribution plan covering substantially all employees. The Corporation matches 100% of amounts contributed by each participating employee, up to 3.0% of the employee’s compensation. The Corporation may also make discretionary contributions up to an additional 6.0% of salary. Contributions are expensed in the period incurred and recorded in compensation expense in the Consolidated Statements of Income. The Corporation made a matching contribution of 3.0% to all eligible employees which totaled $621,000 , $573,000 and $398,000 for the years ended December 31, 2016 , 2015 and 2014 , respectively. Discretionary contributions of 1.2% , or $207,000 , 3.3% , or $549,000 , and 4.7% , or $632,000 , were made in 2016 , 2015 and 2014 , respectively. As of December 31, 2016 , 2015 and 2014 , the Corporation had a deferred compensation plan under which it provided contributions to supplement the retirement income of one executive. Under the terms of the plan, benefits to be received are generally payable within six months of the date of the termination of employment with the Corporation. The expense associated with the deferred compensation plan in 2016 , 2015 and 2014 was $124,000 , $116,000 and $101,000 , respectively. The present value of future payments under the remaining plan of $987,000 and $863,000 at December 31, 2016 and 2015 , respectively, is included in accrued interest payable and other liabilities on the Consolidated Balance Sheets. The Corporation owned life insurance policies on the life of the executive covered by the deferred compensation plan, which had cash surrender values and death benefits of approximately $2.3 million and $5.9 million , respectively, at December 31, 2016 and cash surrender values and death benefits of approximately $2.2 million and $5.8 million , respectively, at December 31, 2015 . The remaining balance of the cash surrender value of bank-owned life insurance of $36.7 million and $26.1 million as of December 31, 2016 and 2015 , respectively, is related to policies on a number of then-qualified individuals affiliated with the Banks.

Leases

Leases	12 Months Ended
	Dec. 31, 2016
Leases [Abstract]
Leases	Leases The Corporation and FBB occupy space in Madison, Wisconsin under an operating lease agreement that expires on July 7, 2028 . FBB has four loan production offices in Appleton, Oshkosh, Manitowoc and Kenosha, Wisconsin that occupy office space under separate operating lease agreements that expire on various dates between July 2017 and January 2018 . In October 2016, the loan production office in Green Bay, Wisconsin was closed. FBB – Milwaukee occupies office space under an operating lease agreement that expires on November 30, 2020 . Alterra occupies office space in Leawood, Kansas under an operating lease agreement that expires on May 31, 2023 . The Corporation also has several specialty financing production offices under separate operating lease agreements that expire on various dates between March 2017 and September 2018. The Corporation’s total rent expense was $1.8 million , $1.7 million and $1.3 million for the years ended December 31, 2016 , 2015 and 2014 , respectively. Rent expense is recognized on a straight-line basis. The Corporation also leases other office equipment. Rental expense for these operating leases was $136,000 , $109,000 and $37,000 for the years ended December 31, 2016 , 2015 and 2014 , respectively. Future minimum lease payments for noncancelable operating leases for each of the five succeeding years and thereafter are as follows: (In Thousands) 2017 $ 1,253 2018 1,072 2019 1,044 2020 1,036 2021 928 Thereafter 4,932 $ 10,265

Other Operating Expenses

Other Operating Expenses	12 Months Ended
	Dec. 31, 2016
Other Operating Expenses [Abstract]
Other Income and Other Expense Disclosure	Other Non-Interest Expense A summary of other non-interest expenses for the years ended December 31, 2016 , 2015 and 2014 is as follows: Year Ended December 31, 2016 2015 2014 (In Thousands) General and administrative expenses $ 1,545 $ 1,759 $ 1,024 Travel and other employee expenses 1,354 1,277 1,069 Computer software expenses 2,160 1,649 886 Partnership income (790 ) (481 ) (774 ) Foreclosed properties expenses 25 52 5 Other expenses 104 295 202 Total other non-interest expense $ 4,398 $ 4,551 $ 2,412

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax expense for the years ended December 31, 2016 , 2015 and 2014 consists of the following: Year Ended December 31, 2016 2015 2014 (In Thousands) Current: Federal $ 2,839 $ 5,881 $ 4,235 State 425 1,338 1,459 Current tax expense 3,264 7,219 5,694 Deferred: Federal (1,000 ) 1,036 1,299 State (108 ) 122 90 Deferred tax (benefit) expense (1,108 ) 1,158 1,389 Total income tax expense $ 2,156 $ 8,377 $ 7,083 Deferred income tax assets and liabilities reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and their tax basis. Net deferred tax assets are included in accrued interest receivable and other assets in the Consolidated Balance Sheets. The significant components of the Corporation’s deferred tax assets and liabilities were as follows: December 31, 2016 December 31, 2015 (In Thousands) Deferred tax assets: Allowance for loan and lease losses $ 8,177 $ 6,422 SBA recourse reserve 720 — Excess book basis over tax basis for net assets acquired 336 697 Deferred compensation 951 1,305 State net operating loss carryforwards 548 666 Non-accrual loan interest 815 813 Capital loss carryforwards 32 33 Unrealized losses on securities 349 50 Other 394 342 Total deferred tax assets before valuation allowance 12,322 10,328 Valuation allowance — (68 ) Total deferred tax assets 12,322 10,260 Deferred tax liabilities: Leasing and fixed asset activities 7,389 6,878 Loan servicing asset 780 612 Other 101 137 Total deferred tax liabilities 8,270 7,627 Net deferred tax asset $ 4,052 $ 2,633 The tax effects of unrealized gains and losses on securities are components of other comprehensive income. A reconciliation of the change in net deferred tax assets to deferred tax expense as of December 31, 2016, 2015 and 2014 was as follows: December 31, 2016 December 31, 2015 December 31, 2014 (In Thousands) Change in net deferred tax assets $ 1,419 $ (970 ) $ (119 ) Deferred taxes allocated to other comprehensive income (311 ) (188 ) 352 Acquired deferred tax assets — — (1,622 ) Deferred income tax benefit (expense) $ 1,108 $ (1,158 ) $ (1,389 ) Realization of the deferred tax asset over time is dependent upon the Corporation generating sufficient taxable earnings in future periods. In making the determination that the realization of the deferred tax was more likely than not, the Corporation considered several factors including its recent earnings history, its expected earnings in the future, appropriate tax planning strategies and expiration dates associated with operating loss carry forwards. The Corporation had state net operating loss carryforwards of approximately $10.7 million and $12.9 million at December 31, 2016 and 2015 , respectively, which can be used to offset future state taxable income. The Corporation believes it will be able to fully utilize its Wisconsin state net operating losses under this law and therefore no valuation allowance has been established as of December 31, 2016. The provision for income taxes differs from that computed at the federal statutory corporate tax rate as follows: Year Ended December 31, 2016 2015 2014 (Dollars in Thousands) Income before income tax expense $ 17,065 $ 24,891 $ 21,222 Tax expense at statutory federal rate of 35%, 34.42% and 34% applied to income before income tax expense, respectively $ 5,973 $ 8,568 $ 7,305 State income tax, net of federal effect 206 968 1,000 Tax-exempt security and loan income, net of TEFRA adjustments (1,114 ) (879 ) (736 ) Bank-owned life insurance (341 ) (330 ) (296 ) Non-deductible transaction costs — — 124 Tax credits, net (2,696 ) (246 ) (375 ) Other 128 296 61 Total income tax expense $ 2,156 $ 8,377 $ 7,083 Effective tax rate 12.63 % 33.65 % 33.38 % As of December 31, 2016 , there were no uncertain tax positions outstanding. The summary of all of the Corporation’s uncertain tax positions totaled $27,000 at December 31, 2015. There were no material additions to or reductions from these uncertain tax positions for the year ended December 31, 2016 . As of December 31, 2016 , tax years remaining open for the State of Wisconsin tax were 2012 through 2015 . Federal tax years that remained open were 2013 through 2015 . As of December 31, 2016 , there were also no unrecognized tax benefits that are expected to significantly increase or decrease within the next twelve months.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments The Corporation offers interest rate swap products directly to qualified commercial borrowers. The Corporation economically hedges client derivative transactions by entering into offsetting interest rate swap contracts executed with a third party. Derivative transactions executed as part of this program are not designated as accounting hedge relationships and are marked-to-market through earnings each period. The derivative contracts have mirror-image terms, which results in the positions’ changes in fair value primarily offsetting through earnings each period. The credit risk and risk of non-performance embedded in the fair value calculations is different between the dealer counterparties and the commercial borrowers which may result in a difference in the changes in the fair value of the mirror-image swaps. The Corporation incorporates credit valuation adjustments to appropriately reflect both its own non-performance risk and the counterparty’s risk in the fair value measurements. When evaluating the fair value of its derivative contracts for the effects of non-performance and credit risk, the Corporation considered the impact of netting and any applicable credit enhancements such as collateral postings, thresholds and guarantees. At December 31, 2016 , the aggregate amortizing notional value of interest rate swaps with various commercial borrowers was $25.8 million . The Corporation receives fixed rates and pays floating rates based upon LIBOR on the swaps with commercial borrowers. These interest rate swaps mature between August 2018 and July 2027 . Commercial borrower swaps are completed independently with each borrower and are not subject to master netting arrangements. These commercial borrower swaps were reported on the Consolidated Balance Sheets as a derivative asset of $352,000 , included in accrued interest receivable and other assets. In the event of default on a commercial borrower interest rate swap by the counterparty, a right of offset exists to allow for the commercial borrower to set off amounts due against the related commercial loan. As of December 31, 2016 , no interest rate swaps were in default and therefore all values for the commercial borrower swaps are recorded on a gross basis on the Consolidated Balance Sheets. At December 31, 2016 , the aggregate amortizing notional value of interest rate swaps with dealer counterparties was also $25.8 million . The Corporation pays fixed rates and receives floating rates based upon LIBOR on the swaps with dealer counterparties. These interest rate swaps mature in August 2018 through July 2027 . Dealer counterparty swaps are subject to master netting agreements among the contracts within each of our Banks and are reported on the Consolidated Balance Sheets as a net derivative liability of $352,000 . The value of these swaps was included in accrued interest payable and other liabilities as of December 31, 2016 . The gross amount of dealer counterparty swaps was also $352,000 as no right of offset existed with the dealer counterparty swaps as of December 31, 2016 . The table below provides information about the location and fair value of the Corporation’s derivative instruments as of December 31, 2016 and 2015 . Interest Rate Swap Contracts Asset Derivatives Liability Derivatives Balance Sheet Location Fair Value Balance Sheet Location Fair Value (In Thousands) Derivatives not designated as hedging instruments December 31, 2016 Accrued interest receivable and other assets $ 352 Accrued interest payable and other liabilities $ 352 December 31, 2015 Accrued interest receivable and other assets $ 552 Accrued interest payable and other liabilities $ 552 No derivative instruments held by the Corporation for the year ended December 31, 2016 were considered hedging instruments. All changes in the fair value of these instruments are recorded in other non-interest income . Given the mirror-image terms of the outstanding derivative portfolio, the change in fair value for the years ended December 31, 2016 , 2015 and 2014 had an insignificant impact to the audited Consolidated Statements of Income.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies The Banks are party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of clients. These financial instruments include commitments to extend credit and standby letters of credit and involve, to varying degrees, elements of credit and interest rate risk in excess of the amounts recognized in the Consolidated Financial Statements. The contract amounts reflect the extent of involvement the Banks have in these particular classes of financial instruments. In the event of non-performance, the Banks’ exposure to credit loss for commitments to extend credit and standby letters of credit is represented by the contractual amount of these instruments. The Banks use the same credit policies in making commitments and conditional obligations as they do for instruments reflected in the Consolidated Financial Statements. An accrual for credit losses on financial instruments with off-balance-sheet risk would be recorded separate from any valuation account related to any such recognized financial instrument. As of December 31, 2016 and 2015 , there were no accrued credit losses for financial instruments with off-balance-sheet risk. Financial instruments whose contract amounts represent potential credit risk at December 31, 2016 and 2015 , respectively, are as follows: At December 31, 2016 2015 (In Thousands) Commitments to extend credit, primarily commercial loans $ 539,146 $ 512,627 Standby letters of credit 11,771 18,622 Commitments to extend credit are agreements to lend to a client as long as there is no violation of any condition in the contract. Commitments generally have fixed expiration dates or other termination clauses and may have a fixed interest rate or a rate which varies with the prime rate or other market indices and may require payment of a fee. Since some commitments expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements of the Banks. The Banks evaluate the creditworthiness of each client on a case-by-case basis and generally extend credit only on a secured basis. Collateral obtained varies but consists primarily of commercial real estate, accounts receivable, inventory, equipment and securities. There is generally no market for commercial loan commitments, the fair value of which would approximate the present value of any fees expected to be received as a result of the commitment. These are not considered to be material to the financial statements. Standby letters of credit are conditional commitments issued by the Banks to guarantee the performance of a client to a third party. Generally, standby letters of credit expire within one year and are collateralized by accounts receivable, equipment, inventory and commercial properties. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to clients. The fair value of standby letters of credit is recorded as a liability when the standby letter of credit is issued. The fair value has been estimated to approximate the fees received by the Banks for issuance. The fees are recorded into income and the fair value of the guarantee is decreased ratably over the term of the standby letter of credit. In the ordinary course of business, the Corporation sells the guaranteed portion of SBA loans, as well as participation interests in other originated loans, to third parties. The Corporation has a continuing involvement in each of the transferred lending arrangements by way of relationship management, servicing the loans, as well as being subject to normal and customary requirements of the SBA loan program; however, there are no further obligations to the third-party participant required of the Corporation, other than standard representations and warranties related to sold amounts. In the event of a loss resulting from default and a determination by the SBA that there is a deficiency in the manner in which the loan was originated, funded or serviced by the Corporation, the SBA may require the Corporation to repurchase the loan, deny its liability under the guaranty, reduce the amount of the guaranty, or, if it has already paid under the guaranty, seek recovery of the principal loss related to the deficiency from the Corporation. The Corporation must comply with applicable SBA regulations in order to maintain the guaranty. In addition, the Corporation retains the option to repurchase the sold guaranteed portion of an SBA loan if the loan defaults. Management has assessed estimated losses inherent in the outstanding guaranteed portion of SBA loans sold in accordance with ASC 450, Contingencies , and determined a recourse reserve based on the probability of future losses for these loans to be $1.7 million at December 31, 2016 , which is reported in accrued interest payable and other liabilities on the Consolidated Balance Sheets. No recourse reserve was recorded as of December 31, 2015 . To date, the Corporation has not experienced significant losses related to the guaranteed portion of SBA loans. The summary of the activity in the SBA recourse reserve for the year ended December 31, 2016 is as follows: At December 31, 2016 (In Thousands) Balance at the beginning of the period $ — SBA recourse provision 2,068 Charge-offs, net (318 ) Balance at the end of the period $ 1,750 In the normal course of business, various legal proceedings involving the Corporation are pending. Management, based upon advice from legal counsel, does not anticipate any significant losses as a result of these actions. Management believes that any liability arising from any such proceedings currently existing or threatened will not have a material adverse effect on the Corporation’s financial position, results of operations and cash flows.

Fair Value

Fair Value	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value	Fair Value Disclosures The Corporation determines the fair values of its financial instruments based on the fair value hierarchy established in ASC Topic 820, which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Fair value is defined as the price that would be received in an orderly transaction that is not a forced liquidation or distressed sale at the measurement date and is based on exit prices. Fair value includes assumptions about risk, such as nonperformance risk in liability fair values, and is a market-based measurement, not an entity-specific measurement. The standard describes three levels of inputs that may be used to measure fair value. Level 1 — Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Corporation has the ability to access at the measurement date. Level 2 — Level 2 inputs are inputs, other than quoted prices included with Level 1, that are observable for the asset or liability either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 — Level 3 inputs are supported by little or no market activity and are significant to the fair value of the assets or liabilities. In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. The Corporation’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability. Assets and liabilities measured at fair value on a recurring basis, segregated by fair value hierarchy level, are summarized below: December 31, 2016 Fair Value Measurements Using Level 1 Level 2 Level 3 Total (In Thousands) Assets: Securities available-for-sale: U.S. Government agency obligations - government-sponsored enterprises $ — $ 6,295 $ — $ 6,295 Municipal obligations — 8,156 — 8,156 Asset backed securities — 1,081 — 1,081 Collateralized mortgage obligations - government issued — 31,213 — 31,213 Collateralized mortgage obligations - government-sponsored enterprises — 99,148 — 99,148 Interest rate swaps — 352 — 352 Liabilities: Interest rate swaps — 352 — 352 December 31, 2015 Fair Value Measurements Using Level 1 Level 2 Level 3 Total (In Thousands) Assets: Securities available-for-sale: U.S. Government agency obligations - government-sponsored enterprises $ — $ 8,017 $ — $ 8,017 Municipal obligations — 4,283 — 4,283 Asset backed securities — 1,269 — 1,269 Collateralized mortgage obligations - government issued — 44,543 — 44,543 Collateralized mortgage obligations - government-sponsored enterprises — 82,436 — 82,436 Interest rate swaps — 552 — 552 Liabilities: Interest rate swaps — 552 — 552 For assets and liabilities measured at fair value on a recurring basis, there were no transfers between the levels during the year ended December 31, 2016 or 2015 related to the above measurements. Assets and liabilities measured at fair value on a non-recurring basis, segregated by fair value hierarchy, are summarized below: December 31, 2016 Fair Value Measurements Using Level 1 Level 2 Level 3 Total (In Thousands) Impaired loans $ — $ 12,268 $ 1,097 $ 13,365 Foreclosed properties — 1,473 — 1,473 Loan servicing rights — — 1,906 1,906 December 31, 2015 Fair Value Measurements Using Level 1 Level 2 Level 3 Total (In Thousands) Impaired loans $ — $ 11,518 $ 6,245 $ 17,763 Foreclosed properties — 1,677 — 1,677 Loan servicing rights — — 1,563 1,563 Impaired loans were written down to the fair value of their underlying collateral less costs to sell of $13.4 million and $17.8 million at December 31, 2016 and 2015 , respectively, through the establishment of specific reserves or by recording charge-offs when the carrying value exceeded the fair value of the underlying collateral of impaired loans. Valuation techniques consistent with the market approach, income approach or cost approach were used to measure fair value and primarily included observable inputs for the individual impaired loans being evaluated such as current appraisals, recent sales of similar assets or other observable market data, and are reflected within Level 2 of the hierarchy. In cases where an input is unobservable, specifically when discounts are applied to appraisal values to adjust such values to current market conditions or to reflect net realizable value, the impaired loan balance is reflected within Level 3 of the hierarchy. The quantification of unobservable inputs for Level 3 impaired loan values range from 15% - 56% . The weighted average of those unobservable inputs as of the measurement date of December 31, 2016 was 30% . The majority of the impaired loans in the Level 3 category are considered collateral dependent loans. Foreclosed properties, upon initial recognition, are remeasured and reported at fair value through a charge-off to the allowance for loan and lease losses, if deemed necessary, based upon the fair value of the foreclosed property. The fair value of a foreclosed property, upon initial recognition, is estimated using a market approach or Level 2 inputs based on observable market data, typically a current appraisal, or Level 3 inputs based upon assumptions specific to the individual property or equipment. Level 3 inputs typically include unobservable inputs such as management applied discounts used to further reduce values to a net realizable value and may be used in situations when observable inputs become stale. Foreclosed property fair value inputs may transition to Level 1 upon receipt of an accepted offer for the sale of the related foreclosed property. Loan servicing rights represent the asset retained upon sale of the guaranteed portion of certain SBA loans. When SBA loans are sold, servicing rights are initially recorded at fair value with the income statement effect recorded in gains on sales of loans. The servicing rights are subsequently measured using the amortization method, which requires amortization into interest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans. The Corporation periodically reviews this portfolio for impairment and engages a third-party valuation firm to assess the fair value of the overall servicing rights portfolio. Loan servicing rights do not trade in an active, open market with readily observable prices. While sales of loan servicing rights do occur, the precise terms and conditions typically are not readily available to allow for a “quoted price for similar assets” comparison. Accordingly, the Corporation utilizes an independent valuation from a third party which uses a discounted cash flow model to estimate the fair value of its loan servicing rights. The valuation model incorporates prepayment assumptions to project loan servicing rights cash flows based on the current interest rate scenario, which is then discounted to estimate an expected fair value of the loan servicing rights. The valuation model considers portfolio characteristics of the underlying serviced portion of the SBA loans and uses the following significant unobservable inputs: (1) constant prepayment rate (“CPR”) assumptions based on the SBA sold pools historical CPR as quoted in Bloomberg and (2) a discount rate of 10%. Due to the nature of the valuation inputs, loan servicing rights are classified in Level 3 of the fair value hierarchy. Fair Value of Financial Instruments The Corporation is required to disclose estimated fair values for its financial instruments. Fair value estimates, methods and assumptions, consistent with exit price concepts for fair value measurements, are set forth below: December 31, 2016 Carrying Fair Value Total Level 1 Level 2 Level 3 (In Thousands) Financial assets: Cash and cash equivalents $ 77,517 $ 77,517 $ 55,622 $ 21,895 $ — Securities available-for-sale 145,893 145,893 — 145,893 — Securities held-to-maturity 38,612 38,520 — 38,520 — Loans held for sale 1,111 1,111 — 1,111 — Loans and lease receivables, net 1,429,763 1,447,044 — 12,268 1,434,776 Bank-owned life insurance 39,048 39,048 — 39,048 — Federal Home Loan Bank and Federal Reserve Bank stock 2,131 2,131 — 2,131 — Accrued interest receivable 4,677 4,677 4,677 — — Interest rate swaps 352 352 — 352 — Financial liabilities: Deposits 1,538,855 1,539,413 $ 1,063,720 475,693 — Federal Home Loan Bank advances and other borrowings 59,676 60,893 — 60,893 — Junior subordinated notes 10,004 9,072 — — 9,072 Accrued interest payable 1,765 1,765 1,765 — — Interest rate swaps 352 352 — 352 — Off balance sheet items: Standby letters of credit 58 58 — — 58 December 31, 2015 Carrying Fair Value Total Level 1 Level 2 Level 3 (In Thousands) Financial assets: Cash and cash equivalents $ 113,564 $ 113,564 $ 100,063 $ 13,501 $ — Securities available-for-sale 140,548 140,548 — 140,548 — Securities held-to-maturity 37,282 37,558 — 37,558 — Loans held for sale 2,702 2,702 — 2,702 — Loans and lease receivables, net 1,414,649 1,445,773 — 11,518 1,434,255 Bank-owned life insurance 28,298 28,298 — 28,298 — Federal Home Loan Bank and Federal Reserve Bank stock 2,843 2,843 — 2,843 — Accrued interest receivable 4,412 4,412 4,412 — — Interest rate swaps 552 552 — 552 — Financial liabilities: Deposits 1,577,231 1,577,838 1,009,762 $ 568,076 — Federal Home Loan Bank advances and other borrowings 34,740 35,353 — 35,353 — Junior subordinated notes 9,990 6,614 — — 6,614 Accrued interest payable 1,766 1,766 1,766 — — Interest rate swaps 552 552 — 552 — Off balance sheet items: Standby letters of credit 183 183 — — 183 Disclosure of fair value information about financial instruments, for which it is practicable to estimate that value, is required whether or not recognized in the Consolidated Balance Sheets. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. In that regard, the derived fair value estimates cannot be substantiated by comparison to independent markets and, in many cases, could not be realized in immediate settlement of the instruments. Certain financial instruments and all non-financial instruments are excluded from the disclosure requirements. Accordingly, the aggregate fair value amounts presented do not necessarily represent the underlying value of the Corporation. Cash and Cash Equivalents: The carrying amount reported for cash and due from banks and interest bearing deposits held by the Corporation approximates fair value because of its immediate availability and because it does not present unanticipated credit concerns. As of December 31, 2016 and 2015 , the Corporation held $20.3 million and $9.1 million , respectively, of commercial paper. The fair value of commercial paper is classified as a Level 2 input due to the lack of available independent pricing sources. The carrying value of brokered certificates of deposit purchased approximates the fair value for these instruments. The fair value of brokered certificates of deposits purchased is based on the discounted value of contractual cash flows using a discount rate reflective of rates currently offered for deposits of similar remaining maturities. As December 31, 2016 and 2015 , the Corporation held $1.6 million and $4.5 million , respectively, of brokered certificates of deposits. Securities: The fair value measurements of investment securities are determined by a third-party pricing service which considers observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, trade execution data, market consensus prepayment speeds, credit information and the securities’ terms and conditions, among other things. The fair value measurements are subject to independent verification by another pricing source on a quarterly basis to review for reasonableness. Any significant differences in pricing are reviewed with appropriate members of management who have the relevant technical expertise to assess the results. The Corporation has determined that these valuations are classified in Level 2 of the fair value hierarchy. When the independent pricing service does not provide a fair value measurement for a particular security, the Corporation will estimate the fair value based on specific information about each security. Fair values derived in this manner are classified in Level 3 of the fair value hierarchy. Loans Held for Sale: Loans held for sale, which consist of residential real estate mortgage loans and the guaranteed portion of SBA loans, are carried at the lower of cost or estimated fair value. The estimated fair value is based on what secondary markets are currently offering for portfolios with similar characteristics. Loans and Lease Receivables, net: The fair value estimation process for the loan portfolio uses an exit price concept and reflects discounts that the Corporation believes are consistent with liquidity discounts in the market place. Fair values are estimated for portfolios of loans with similar financial characteristics. The fair value of performing and nonperforming loans is calculated by discounting scheduled and expected cash flows through the estimated maturity using estimated market rates that reflect the credit and interest rate risk inherent in the portfolio of loans and then applying a discount factor based upon the embedded credit risk of the loan and the fair value of collateral securing nonperforming loans when the loan is collateral dependent. The estimate of maturity is based on the Banks’ historical experience with repayments for each loan classification, modified, as required, by an estimate of the effect of current economic and lending conditions. Significant unobservable inputs include, but are not limited to, discounts (investor yield premiums) applied to fair value calculations to further determine the exit price value of a portfolio of loans. Federal Home Loan Bank and Federal Reserve Bank Stock: The carrying amount of FHLB and FRB stock equals its fair value because the shares may be redeemed by the FHLB and the FRB at their carrying amount of $100 per share. Bank Owned Life Insurance: The carrying amount of the cash surrender value of life insurance approximates its fair value as the carrying value represents the current settlement amount. Accrued Interest Receivable and Accrued Interest Payable: The carrying amounts reported for accrued interest receivable and accrued interest payable approximate fair value because of their immediate availability and because they do not present unanticipated credit concerns. Deposits: The fair value of deposits with no stated maturity, such as demand deposits and money market accounts, is equal to the amount payable on demand. The fair value of time deposits is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently offered for deposits of similar remaining maturities. The fair value estimates do not include the intangible value that results from the funding provided by deposit liabilities compared to borrowing funds in the market. Borrowed Funds: Market rates currently available to the Corporation and Banks for debt with similar terms and remaining maturities are used to estimate fair value of existing debt. Interest Rate Swaps: The carrying amount and fair value of existing derivative financial instruments are based upon independent valuation models, which use widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each derivative contract. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The Corporation incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Corporation considers the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts and guarantees. Financial Instruments with Off-Balance-Sheet Risks: The fair value of the Corporation’s off-balance-sheet instruments is based on quoted market prices and fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the credit standing of the related counterparty. Commitments to extend credit and standby letters of credit are generally not marketable. Furthermore, interest rates on any amounts drawn under such commitments would generally be established at market rates at the time of the draw. Fair value would principally derive from the present value of fees received for those products. Limitations: Fair value estimates are made at a discrete point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Corporation’s entire holding of a particular financial instrument. Because no market exists for a significant portion of the Corporation’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and are not considered in the estimates.

Condensed Parent Only Financial

Condensed Parent Only Financial Information	12 Months Ended
	Dec. 31, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Parent Only Financial Information	Condensed Parent Only Financial Information The following represents the condensed financial information of FBFS only: Condensed Balance Sheets As of December 31, 2016 2015 (In Thousands) Assets Cash and due from banks $ 127 $ 1,099 Investments in subsidiaries, at equity 196,221 187,530 Leasehold improvements and equipment, net 1,605 1,519 Other assets 4,738 2,849 Total assets $ 202,691 $ 192,997 Liabilities and Stockholders’ Equity Borrowed funds $ 33,512 $ 35,751 Other liabilities 7,529 6,414 Total liabilities 41,041 42,165 Stockholders’ equity 161,650 150,832 Total liabilities and stockholders’ equity $ 202,691 $ 192,997 Condensed Statements of Income For the Year Ended December 31, 2016 2015 2014 (In Thousands) Net interest expense 2,799 2,777 2,071 Non-interest income Consulting and rental income from consolidated subsidiaries 16,036 13,398 10,776 Other 33 35 34 Total non-interest income 16,069 13,433 10,810 Non-interest expense 19,250 16,854 13,444 Loss before income tax benefit and equity in undistributed net income of consolidated subsidiaries 5,980 6,198 4,705 Income tax benefit 2,170 2,527 1,659 Loss before equity in undistributed net income of consolidated subsidiaries 3,810 3,671 3,046 Equity in undistributed net income of consolidated subsidiaries 18,719 20,185 17,185 Net income $ 14,909 $ 16,514 $ 14,139 Condensed Statements of Cash Flows For the Year Ended December 31, 2016 2015 2014 (In Thousands) Operating activities Net income $ 14,909 $ 16,514 $ 14,139 Adjustments to reconcile net income to net cash used in operating activities: Equity in undistributed earnings of consolidated subsidiaries (18,719 ) (20,185 ) (17,185 ) Share-based compensation 994 448 416 Excess tax benefit from share-based compensation (83 ) — — Increase in other liabilities 1,198 2,390 1,002 Other, net (3,162 ) (481 ) (1,147 ) Net cash used in operating activities (4,863 ) (1,314 ) (2,775 ) Investing activities Dividends received from subsidiaries 13,534 7,034 8,000 Capital contributions to subsidiaries (3,500 ) (3,000 ) (32,980 ) Net cash provided by (used in) investing activities 10,034 4,034 (24,980 ) Financing activities Net (decrease) increase in short-term borrowed funds (1,500 ) 1,500 1,000 Proceeds from issuance of long-term debt, net of issuance costs — — 14,469 Repayment of long-term debt — — (4,000 ) Proceeds from issuance of common stock — — 16,560 Proceeds from exercise of stock options — 300 936 Purchase of treasury stock (467 ) (946 ) (1,795 ) Excess tax benefit from share-based compensation — 162 305 Cash dividends paid (4,176 ) (3,816 ) (3,396 ) Net cash (used in) provided by financing activities (6,143 ) (2,800 ) 24,079 Decrease in cash and cash equivalents (972 ) (80 ) (3,676 ) Cash and due from banks at the beginning of the period 1,099 1,179 4,855 Cash and due from banks at the end of the period $ 127 $ 1,099 $ 1,179

Condensed Quarterly Earnings (u

Condensed Quarterly Earnings (unaudited)	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Condensed Quarterly Earnings (unaudited)	Condensed Quarterly Earnings (unaudited) 2016 2015 Fourth Third Quarter Second Quarter First Quarter Fourth Quarter Third Quarter Second Quarter First Quarter (Dollars in Thousands, Except Share Data) Interest income $ 20,321 $ 18,898 $ 19,555 $ 19,343 $ 18,600 $ 18,135 $ 17,520 $ 18,216 Interest expense 3,568 3,603 3,814 3,804 3,688 3,525 3,332 3,286 Net interest income 16,753 15,295 15,741 15,539 14,912 14,610 14,188 14,930 Provision for loan and lease losses 994 3,537 2,762 525 1,895 287 520 684 Non-interest income 3,931 3,640 5,823 4,594 4,935 4,102 4,126 3,848 Non-interest expense 14,523 15,753 13,458 12,699 11,684 11,984 11,974 11,732 Income (loss) before income tax expense 5,167 (355 ) 5,344 6,909 6,268 6,441 5,820 6,362 Income tax expense (benefit) (1) 1,199 (3,020 ) 1,621 2,356 2,185 2,060 1,962 2,170 Net income (1) $ 3,968 $ 2,665 $ 3,723 $ 4,553 $ 4,083 $ 4,381 $ 3,858 $ 4,192 Per common share (2) : Basic earnings (1) $ 0.46 $ 0.31 $ 0.43 $ 0.52 $ 0.47 $ 0.50 $ 0.45 $ 0.48 Diluted earnings (1) 0.46 0.31 0.43 0.52 0.47 0.50 0.45 0.48 Dividends declared 0.12 0.12 0.12 0.12 0.11 0.11 0.11 0.11 (1) Results for the third quarter, second quarter and first quarter 2016 have been adjusted to reflect early adoption of ASU 2016-09, “Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.” See Note 1 for additional details related to the adjustments. (2) All per share amounts have been adjusted to reflect the 2-for-1 stock split in the form of a 100% stock dividend completed in August 2015.

Nature of Operations and Summ30

Nature of Operations and Summary of Significant Accounting Policies Nature of Operations and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Accounting	Nature of Operations. The accounting and reporting practices of First Business Financial Services, Inc. (the “Corporation”), its wholly-owned subsidiaries, First Business Bank (“FBB”), First Business Bank – Milwaukee (“FBB – Milwaukee”) and Alterra Bank (“Alterra”) have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). FBB, FBB – Milwaukee and Alterra are sometimes referred to together as the “Banks.” FBB operates as a commercial banking institution in the Madison, Wisconsin market, consisting primarily of Dane County and the surrounding areas, with three loan production offices in Northeast Wisconsin. FBB also offers trust and investment services through First Business Trust & Investments (“FBTI”), a division of FBB. FBB – Milwaukee operates as a commercial banking institution in the Milwaukee, Wisconsin market, consisting primarily of Waukesha County and the surrounding areas, with a loan production office in Kenosha, Wisconsin. Alterra operates as a commercial banking institution in the Kansas City market and the surrounding areas. The Banks provide a full range of financial services to businesses, business owners, executives, professionals and high net worth individuals. The Banks are subject to competition from other financial institutions and service providers and are also subject to state and federal regulations. FBB has the following wholly-owned subsidiaries: First Business Capital Corp. (“FBCC”), First Madison Investment Corp. (“FMIC”), First Business Equipment Finance, LLC (“FBEF”), Rimrock Road Investment Fund, LLC (“Rimrock Road”), BOC Investment, LLC (“BOC”) and Mitchell Street Apartments Investment, LLC (“Mitchell Street”). FMIC is located in and was formed under the laws of the State of Nevada. FBB-Milwaukee has one subsidiary, FBB – Milwaukee Real Estate, LLC (“FBBMRE”).
Principles of Consolidation	Basis of Financial Statement Presentation. The Consolidated Financial Statements include the accounts of the Corporation and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. In accordance with the provisions of Accounting Standards Codification (“ASC”) Topic 810, the Corporation’s ownership interest in FBFS Statutory Trust II (“Trust II”) has not been consolidated into the financial statements.
Use of Estimates	Management of the Corporation is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements as well as reported amounts of revenues and expenses during the reporting period. Actual results could differ significantly from those estimates. Material estimates that could significantly change in the near-term include the value of securities, level of the allowance for loan and lease losses, lease residuals, property under operating leases, goodwill, level of the Small Business Administration (“SBA”) recourse reserve and income taxes.
Reclassification	Certain amounts in prior periods may have been reclassified to conform to the current presentation.
Subsequent Events	Subsequent events have been evaluated through the date of the issuance of the Consolidated Financial Statements. No significant subsequent events have occurred through this date requiring adjustment to the financial statements or disclosures.
Cash and Cash Equivalents	Cash and Cash Equivalents. The Corporation considers federal funds sold, interest-bearing deposits and short-term investments that have original maturities of three months or less to be cash equivalents.
Securities	Securities. The Corporation classifies its investment and mortgage-related securities as available-for-sale, held-to-maturity and trading. Debt securities that the Corporation has the positive intent and ability to hold to maturity are classified as held-to-maturity and are stated at amortized cost. Debt and equity securities bought expressly for the purpose of selling in the near term are classified as trading securities and are measured at fair value with unrealized gains and losses reported in earnings. Debt and equity securities not classified as held-to-maturity or as trading are classified as available-for-sale. Available-for-sale securities are measured at fair value with unrealized gains and losses reported as a separate component of stockholders’ equity, net of tax. Realized gains and losses, and declines in value deemed to be other than temporary, are included in the consolidated statements of income as a component of non-interest income. The cost of securities sold is based on the specific identification method. The Corporation did not hold any trading securities at December 31, 2016 or 2015 . Discounts and premiums on securities are accreted and amortized into interest income using the effective yield method over the weighted average life of the securities. Declines in the fair value of investment securities (with certain exceptions for debt securities noted below) that are deemed to be other-than-temporary are charged to earnings as a realized loss and a new cost basis for the securities is established. In evaluating other-than-temporary impairment, management considers the length of time and extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer and the intent and ability of the Corporation to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value in the near term. Declines in the fair value of debt securities below amortized cost are deemed to be other-than-temporary in circumstances where: (1) the Corporation has the intent to sell a security; (2) it is more likely than not that the Corporation will be required to sell the security before recovery of its amortized cost basis; or (3) the Corporation does not expect to recover the entire amortized cost basis of the security. If the Corporation intends to sell a security or if it is more likely than not that the Corporation will be required to sell the security before recovery, an other-than-temporary impairment write-down is recognized in earnings equal to the difference between the security’s amortized cost basis and its fair value. If the Corporation does not intend to sell the security or it is not more likely than not that it will be required to sell the security before recovery, the other-than-temporary impairment write-down is separated into an amount representing credit loss, which is recognized in earnings, and an amount related to all other factors, which is recognized in other comprehensive income.
Loans Held for Sale	Loans Held for Sale. Residential real estate loans and the guaranteed portion of SBA loans which are originated and intended for sale in the secondary market in the foreseeable future are classified as held for sale. These loans are carried at the lower of cost or fair value in the aggregate. Unrealized losses on such loans are recognized through a valuation allowance by a charge to other non-interest income. Gains and losses on the sale of loans are also included in other non-interest income. As assets specifically originated for sale, the origination of, disposition of, and gain/loss on these loans are classified as operating activities in the statement of cash flows. Fees received from the borrower and direct costs to originate the loan are deferred and recognized as part of the gain or loss on sale. There was $1.1 million and $2.7 million in loans held for sale outstanding at December 31, 2016 and 2015 , respectively.
Loans and Leases	Loans and Leases. Loans and leases which management has the intent and ability to hold for the foreseeable future or until maturity are reported at their outstanding principal balance with adjustments for partial charge-offs, the allowance for loan and lease losses, deferred fees or costs on originated loans and leases and unamortized premiums or discounts on any purchased loans. A loan or a lease is accounted for as a troubled debt restructuring if the Corporation, for economic or legal reasons related to the borrower’s financial condition, grants a concession to the borrower that it would not otherwise consider. A troubled debt restructuring may involve the receipt of assets from the debtor in partial or full satisfaction of the loan or lease or a modification of terms, such as a reduction of the stated interest rate or face amount of the loan or lease, a reduction of accrued interest, an extension of the maturity date at a stated interest rate lower than the current market rate for a new loan or lease with similar risk or some combination of these concessions. Restructured loans can involve loans remaining on non-accrual, moving to non-accrual or continuing on accrual status, depending on individual facts and circumstances. Non-accrual restructured loans are included and treated with all other non-accrual loans. In addition, all accruing restructured loans are reported as troubled debt restructurings which are considered and accounted for as impaired loans. Generally, restructured loans remain on non-accrual until the borrower has attained a sustained period of repayment performance under the modified loan terms (generally a minimum of six months). However, performance prior to the restructuring, or significant events that coincide with the restructuring, are considered in assessing whether the borrower can meet the new terms and whether the loan should be returned to or maintained on accrual status. If the borrower’s ability to meet the revised payment schedule is not reasonably assured, the loan remains on non-accrual. Interest on non-impaired loans and leases is accrued and credited to income on a daily basis based on the unpaid principal balance and is calculated using the effective interest method. Per policy, a loan or a lease is considered impaired and placed on a non-accrual status when it becomes 90 days past due or it is doubtful that contractual principal and interest will be collected in accordance with the terms of the contract. A loan or lease is determined to be past due if the borrower fails to meet a contractual payment and will continue to be considered past due until all contractual payments are received. When a loan or lease is placed on non-accrual, the interest accrual is discontinued and previously accrued but uncollected interest is deducted from interest income. If collectability of the contractual principal and interest is in doubt, payments received are first applied to reduce the loan principal. If collectability of the contractual payments is not in doubt, payments may be applied to interest for interest amounts due on a cash basis. As soon as it is determined with certainty that the principal of an impaired loan or lease is uncollectable, either through collections from the borrower or disposition of the underlying collateral, the portion of the carrying balance that exceeds the estimated measurement value of the loan or lease is charged off. Loans or leases are returned to accrual status when they are brought current in terms of both principal and accrued interest due, have performed in accordance with contractual terms for a reasonable period of time and when the ultimate collectability of total contractual principal and interest is no longer doubtful. Transfers of assets, including but not limited to the guaranteed portion of SBA loans and participation interests in other originated loans, that upon completion of the transfer satisfy the conditions to be reported as a sale, including legal isolation, are derecognized from the Consolidated Financial Statements. Transfers of assets that upon completion of the transfer do not meet the conditions of a sale are recorded on a gross basis with a secured borrowing identified to reflect the amount of the transferred interest. Loan and lease origination fees as well as certain direct origination costs are deferred and amortized as an adjustment to loan yields over the stated term of the loan or lease. Loans or leases that result from a refinance or restructuring, other than a troubled debt restructuring, where terms are at least as favorable to the Corporation as the terms for comparable loans to other borrowers with similar collection risks and result in an essentially new loan or lease, are accounted for as a new loan or lease. Any unamortized net fees, costs or penalties are recognized when the new loan or lease is originated. Unamortized net loan or lease fees or costs for loans and leases that result from a refinance or restructure with only minor modifications to the original loan or lease contract are carried forward as a part of the net investment in the new loan or lease. For troubled debt restructurings, all fees received in connection with a modification of terms are applied as a reduction of the loan or lease and any related costs, including direct loan origination costs, are charged to expense as incurred. The Corporation purchased an individual loan in 2013 and a group of loans in connection with the Alterra acquisition which have shown evidence of credit deterioration since origination. These purchased loans are recorded at fair value, such that there is no carryover of the seller’s allowance for loan losses. Such purchased loans are accounted for individually. At acquisition, the Corporation estimates the amount and timing of expected cash flows for each purchased loan and the expected cash flows in excess of fair value are recorded as interest income over the remaining life of the loan (accretable yield). The excess of the loan’s contractual principal and interest over expected cash flows at acquisition is not recorded (nonaccretable difference). Over the life of the loan, expected cash flows continue to be estimated. If the present value of expected cash flows is less than the carrying amount, losses are recognized by an increase in the allowance for loan losses. If the present value of expected cash flows is greater than the carrying amount, it is recognized as part of future interest income.
Allowance for Loan and Lease Losses	To determine the level and composition of the allowance for loan and lease losses, the Corporation categorizes the portfolio into segments with similar risk characteristics. First, the Corporation evaluates loans and leases for potential impairment classification. The Corporation analyzes each loan and lease determined to be impaired on an individual basis to determine a specific reserve based upon the estimated value of the underlying collateral for collateral-dependent loans, or alternatively, the present value of expected cash flows. The Corporation applies historical trends from established risk factors to each category of loans and leases that has not been individually evaluated for the purpose of establishing the general portion of the allowance.
Net Investment in Direct Financing Leases and Operating Leases	Net Investment in Direct Financing Leases. The net investment in direct financing lease agreements represents total undiscounted payments plus estimated unguaranteed residual value (approximating 3% to 20% of the cost of the related equipment) and is recorded as lease receivables when the lease is signed and the leased property is delivered to the client. The excess of the minimum lease payments and residual values over the cost of the equipment is recorded as unearned lease income. Unearned lease income is recognized over the term of the lease on a basis which results in an approximate level rate of return on the unrecovered lease investment. Lease payments are recorded when due under the lease contract. Residual values are established at lease inception equal to the estimated value to be received from the equipment following termination of the initial lease and such estimated value considers all relevant information and circumstances regarding the equipment. In estimating the equipment’s fair value at lease termination, the Corporation relies on internally or externally prepared appraisals, published sources of used equipment prices and historical experience adjusted for known current industry and economic trends. The Corporation’s estimates are periodically reviewed to ensure reasonableness; however, the amounts the Corporation will ultimately realize could differ from the estimated amounts. When there are other than temporary declines in the Corporation’s carrying amount of the unguaranteed residual value, the carrying value is reduced and charged to non-interest expense. Operating Leases. Machinery and equipment are leased to clients under operating leases and are recorded at cost. Equipment under such leases is depreciated over the estimated useful life or term of the lease, if shorter. The impairment loss, if any, would be charged to expense in the period it becomes evident. Rental income is recorded on the straight-line accrual basis as other non-interest income.
Leasehold Improvements and Equipment	Premises and Equipment, net. The cost of buildings and capitalized leasehold improvements is amortized on the straight-line method over the lesser of the term of the respective lease or estimated economic life. Equipment is stated at cost less accumulated depreciation and amortization which is calculated by the straight-line method over the estimated useful lives of three to ten years. Maintenance and repair costs are charged to expense as incurred. Improvements which extend the useful life are capitalized and depreciated over the remaining useful life of the assets.
Foreclosed Properties	Foreclosed Properties. Property acquired by repossession, foreclosure or by deed in lieu of foreclosure is carried at the lower of the recorded investment in the loan at the time of acquisition or the fair value of the underlying property, less costs to sell. Any write-down in the carrying value of a loan or lease at the time of acquisition is charged to the allowance for loan and lease losses. Any subsequent write-downs to reflect current fair value, as well as gains and losses on disposition and revenues are recorded in non-interest expense. Costs relating to the development and improvement of the property are capitalized while holding period costs are charged to other non-interest expense.
Bank-Owned Life Insurance	Bank-Owned Life Insurance. Bank-owned life insurance (“BOLI”) is reported at the amount that would be realized if the life insurance policies were surrendered on the balance sheet date. BOLI policies owned by the Banks are purchased with the objective to fund certain future employee benefit costs with the death benefit proceeds. The cash surrender value of such policies is recorded in bank-owned life insurance on the Consolidated Balance Sheets and changes in the value are recorded in non-interest income. The total death benefit of all of the BOLI policies was $97.3 million and $67.1 million as of December 31, 2016 and 2015 , respectively. There are no restrictions on the use of BOLI proceeds nor are there any contractual restrictions on the ability to surrender the policy. As of each of December 31, 2016 and 2015 , there were no borrowings against the cash surrender value of the BOLI policies.
Regulatory Required Holdings	Federal Home Loan Bank and Federal Reserve Bank Stock. The Banks are required to maintain Federal Home Loan Bank (“FHLB”) stock as members of the FHLB, and in amounts as required by these institutions. Alterra, as a state chartered member of the Federal Reserve Bank of Kansas City, is required to own shares of Federal Reserve Bank (“FRB”) stock. These equity securities are “restricted” in that they can only be sold back to the respective institutions or another member institution at par. Therefore, they are less liquid than other marketable equity securities and their fair value is equal to cost. At December 31, 2016 and 2015 , the Banks had FHLB stock of $1.1 million and $1.8 million , respectively. Alterra had FRB stock of $1.1 million at December 31, 2016 and 2015 . The Corporation periodically evaluates its holding in FHLB and FRB stock for impairment. Should the stock be impaired, it would be written down to its estimated fair value. There were no impairments recorded on FHLB and FRB stock during the year ended December 31, 2016 or 2015 .
Goodwill and Intangible Assets	Goodwill and Other Intangible Assets. Goodwill and other intangible assets consist primarily of goodwill, core deposit intangibles and loan servicing rights. Core deposit intangibles have estimated finite lives and are amortized on an accelerated basis to expense over a period of seven years. Loan servicing rights, when purchased, are initially recorded at fair value and subsequently amortized in proportion to and over the period of estimated net servicing income. The Corporation reviews other intangible assets for impairment at least annually, or whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable, in which case an impairment charge would be recorded. Goodwill is not amortized but is subject to impairment tests on at least an annual basis, and more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of the reporting unit below its carrying amount (including goodwill). An initial qualitative evaluation is made to assess the likelihood of impairment and determine whether further quantitative testing to calculate the fair value is necessary. When the qualitative evaluation indicates that impairment is more likely than not, quantitative testing is required whereby the fair value of each reporting unit is calculated and compared to the recorded book value, “step one.” If the calculated fair value of the reporting unit exceeds its carrying value, goodwill is not considered impaired and “step two” is not considered necessary. If the carrying value of a reporting unit exceeds its calculated fair value, the impairment test continues (“step two”) by comparing the carrying value of the reporting unit’s goodwill to the implied fair value of goodwill. The implied fair value is computed by adjusting all assets and liabilities of the reporting unit to current fair value with the offset adjustment to goodwill. The adjusted goodwill balance is the implied fair value of the goodwill. An impairment charge is recognized if the carrying value of goodwill exceeds the implied fair value of goodwill. See Note 6 for additional information on goodwill and other intangible assets.
SBA Recourse Reserve [Policy Text Block]	The Corporation establishes SBA recourse reserves on the guaranteed portion of sold SBA loans when it is probable that the guarantee may be ineligible. The recourse reserve is reported in accrued interest payable and other liabilities on the Consolidated Balance Sheets and consists of two components: (1) specific reserves for individually evaluated impaired loans that present a collateral shortfall where the guaranty associated with the sold portion of the SBA loan is determined to most likely be ineligible; and (2) general reserves for estimated probable losses on the remaining sold portfolio. The general reserve methodology is based on the evaluation of several factors, including but not limited to: credit quality trends within the SBA portfolio, changes in underlying collateral and the Corporation’s ability to originate, fund or service sold SBA loans in accordance with SBA regulations. In the ordinary course of business, the Corporation sells the guaranteed portion of SBA loans to third parties. The Corporation has a continuing involvement in each of the transferred lending arrangements by way of relationship management, servicing the loans, as well as being subject to normal and customary requirements of the SBA loan program; however, there are no further obligations to the third-party participant required of the Corporation, other than standard representations and warranties related to sold amounts. In the event of a loss resulting from default and a determination by the SBA that there is a deficiency in the manner in which the loan was originated, funded or serviced by the Corporation, the SBA may require the Corporation to repurchase the loan, deny its liability under the guaranty, reduce the amount of the guaranty, or, if it has already paid under the guaranty, seek recovery of the principal loss related to the deficiency from the Corporation. The Corporation must comply with applicable SBA regulations in order to maintain the guaranty. In addition, the Corporation retains the option to repurchase the sold guaranteed portion of an SBA loan if the loan defaults. See Note 18 for additional information on the SBA recourse reserve.
Other Investments	Other Investments. The Corporation owns certain equity investments in other corporate organizations which are not consolidated because the Corporation does not own more than a 50% interest or exercise control over the organization. Investments in corporations representing at least a 20% interest are generally accounted for using the equity method and investments in corporations representing less than 20% interest are generally accounted for at cost. Investments in limited partnerships representing from at least a 3% up to a 50% interest in the entity are generally accounted for using the equity method and investments in limited partnerships representing less than 3% are generally accounted for at cost. All of these investments are periodically evaluated for impairment. Should an investment be impaired, it would be written down to its estimated fair value. The equity investments are reported in other assets and the income and expense from such investments, if any, is reported in non-interest income and non-interest expense.
Derivative Instruments	Derivative Instruments. The Corporation uses derivative instruments to protect against the risk of adverse price or interest rate movements on the value of certain assets, liabilities, future cash flows and economic hedges for written client derivative contracts. Derivative instruments represent contracts between parties that usually require little or no initial net investment and result in one party delivering cash to the other party based on a notional amount and an underlying as specified in the contract and may be subject to master netting agreements. A notional amount represents the number of units of a specific item, such as currency units. An underlying represents a variable, such as an interest rate. The amount of cash delivered from one party to the other is determined based on the interaction of the notional amount of the contract with the underlying. Market risk is the risk of loss arising from an adverse change in interest rates, exchange rates or equity prices. The Corporation’s primary market risk is interest rate risk. Instruments designed to manage interest rate risk include interest rate swaps, interest rate options and interest rate caps and floors with indices that relate to the pricing of specific assets and liabilities. The nature and volume of the derivative instruments used to manage interest rate risk depend on the level and type of assets and liabilities on the balance sheet and the risk management strategies for the current and anticipated rate environments. Counterparty risk with respect to derivative instruments occurs when a counterparty to a derivative contract with an unrealized gain fails to perform according to the terms of the agreement. Counterparty risk is managed by limiting the counterparties to highly rated dealers, requiring collateral postings when values are in deficit positions, applying uniform credit standards to all activities with credit risk and monitoring the size and the maturity structure of the derivative portfolio. All derivative instruments are to be carried at fair value on the Consolidated Balance Sheets. The accounting for the gain or loss due to changes in the fair value of a derivative instrument depends on whether the derivative instrument qualifies as a hedge. If the derivative instrument does not qualify as a hedge, the gains or losses are reported in earnings when they occur. However, if the derivative instrument qualifies as a hedge, the accounting varies based on the type of risk being hedged. In 2016 and 2015 , the Corporation solely utilized interest rate swaps which did not qualify for hedge accounting, and therefore, all changes in fair value and gains and losses on these instruments were reported in earnings as they occurred. The effects of netting arrangements are disclosed within the Notes of the Consolidated Financial Statements.
Income Taxes	Income Taxes. Deferred income tax assets and liabilities are computed annually for temporary differences in timing between the financial statement and tax basis of assets and liabilities that result in taxable or deductible amounts in the future based on enacted tax law and rates applicable to periods in which the differences are expected to affect taxable income. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the ability to carry back any losses to previous years with taxable income, scheduled reversals of deferred tax liabilities, appropriate tax planning strategies and projections for future taxable income over the period which the deferred tax assets are deductible. When necessary, valuation allowances are established to reduce deferred tax assets to the realizable amount. Management believes it is more likely than not that the Corporation will realize the benefits of these deductible differences, net of the existing valuation allowances. Income tax expense or benefit represents the tax payable or tax refundable for a period, adjusted by the applicable change in deferred tax assets and liabilities for that period. The Corporation and its subsidiaries file a consolidated federal income tax return and separate state income tax returns. Tax sharing agreements allocate taxes to each entity for the settlement of intercompany taxes. The Corporation applies a more likely than not standard to each of its tax positions when determining the amount of tax expense or benefit to record in its financial statements. Unrecognized tax benefits are recorded in other liabilities. The Corporation recognizes accrued interest relating to unrecognized tax benefits in income tax expense and penalties in other non-interest expense.
Comprehensive Income	Other Comprehensive Income or Loss. Comprehensive income or loss, shown as a separate financial statement, includes net income or loss, changes in unrealized holding gains and losses on available-for-sale securities, changes in deferred gains and losses on investment securities transferred from available-for-sale to held-to-maturity, if any, changes in unrealized gains and losses associated with cash flow hedging instruments, if any, and the amortization of deferred gains and losses associated with terminated cash flow hedges, if any. For the year ended December 31, 2016 , there were no items requiring reclassification out of accumulated other comprehensive income.
Earnings Per Share	Earnings Per Common Share. Earnings per common share (“EPS”) is computed using the two-class method. Basic EPS is computed by dividing net income allocated to common shares by the weighted average number of common shares outstanding for the period, excluding any participating securities. Participating securities include unvested restricted shares. Unvested restricted shares are considered participating securities because holders of these securities receive non-forfeitable dividends at the same rate as the holders of the Corporation’s common stock. Diluted EPS is computed by dividing net income allocated to common shares adjusted for reallocation of undistributed earnings of unvested restricted shares by the weighted average number of common shares determined for the basic EPS plus the dilutive effect of common stock equivalents using the treasury stock method based on the average market price for the period. Some stock options are anti-dilutive and therefore are not included in the calculation of diluted EPS.
Segments and Related Information	Segments and Related Information. The Corporation is required to report each operating segment based on materiality thresholds of ten percent or more of certain amounts, such as revenue. Additionally, the Corporation is required to report separate operating segments until the revenue attributable to such segments is at least 75 percent of total consolidated revenue. The Corporation provides a broad range of financial services to individuals and companies in the Midwest. These services include demand, time and savings products, the sale of certain non-deposit financial products and commercial and retail lending, leasing and trust services. While the Corporation’s chief decision-maker monitors the revenue streams of the various products, services and locations, operations are managed and financial performance is evaluated on a corporate-wide basis. The Corporation’s business units have similar basic characteristics in the nature of the products, production processes and type or class of client for products or services; therefore, these business units are considered one operating segment.
Stock Options	Restricted Stock Under the Plan, the Corporation may grant restricted stock to plan participants, subject to forfeiture upon the occurrence of certain events until the dates specified in the participant’s award agreement. While restricted stock is subject to forfeiture, with the exception of restricted stock units, which do not have voting rights and are provided dividend equivalents, restricted stock participants may exercise full voting rights and will receive all dividends and other distributions paid with respect to the restricted shares. The restricted stock granted under the Plan is typically subject to a vesting period. Compensation expense is recognized over the requisite service period of generally four years for the entire award on a straight-line basis. Upon vesting of restricted share awards, the benefit of tax deductions in excess of recognized compensation expense is reflected as an income tax benefit in the Consolidated Statements of Income.
Future Accounting Changes	Recent Accounting Pronouncements. In February 2015, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2015-02, “Consolidation (Topic 810): Amendments to the Consolidation Analysis.” This ASU changes the way reporting enterprises evaluate whether (a) they should consolidate limited partnerships and similar entities, (b) fees paid to a decision maker or service provider are variable interests in a variable interest entity (“VIE”), and (c) variable interests in a VIE held by related parties of the reporting enterprise require the reporting enterprise to consolidate the VIE. It also eliminates the VIE consolidation model based on majority exposure to variability that applied to certain investment companies and similar entities. The new guidance excludes money market funds that are required to comply with Rule 2a-7 of the Investment Company Act of 1940 and similar entities from the U.S. GAAP consolidation requirements. The new consolidation guidance is effective for public business entities for annual and interim periods in fiscal years beginning after December 15, 2015. At the effective date, all previous consolidation analysis that the guidance affects must be reconsidered. This includes the consolidation analysis for all VIEs and for all limited partnerships and similar entities that previously were consolidated by the general partner even though the entities were not VIEs. The Corporation adopted the standard during the first quarter of 2016, as required, and with no material impact on its consolidated results of operations, financial position or liquidity. In April 2015, the FASB issued ASU No. 2015-03, “ Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs.” The ASU requires that debt issuance costs related to recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. Prior to this ASU, debt issuance costs were required to be presented as an asset. The ASU is effective for public business entities for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. In August 2015, the FASB expanded this amendment to include SEC staff views related to debt issuance costs associated with line-of-credit arrangements. The SEC staff would not object to an entity deferring and presenting debt issuance costs as an asset and subsequently amortizing the deferred debt issuance costs ratably over the term of the line-of-credit arrangement, regardless of whether there are any outstanding borrowings on the line-of-credit arrangement. This amendment is also effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. The Corporation adopted the standards during the first quarter of 2016, as required, and reclassified $792,000 and $810,000 of debt issuance costs from other assets and presented as a deduction from the debt liability as of March 31, 2016 and December 31, 2015, respectively. The adoption of the standards did not have a material impact on the Corporation’s consolidated results of operations, financial position or liquidity. In September 2015, the FASB issued ASU No. 2015-16, “Business Combinations (Topic 805).” The ASU intends to simplify the accounting for measurement adjustments to prior business combinations. The amendment requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The acquirer must record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. The amendment also requires an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. This amendment is effective for fiscal years beginning after December 15, 2015, including interim periods within those fiscal years. The amendments should be applied prospectively to adjustments to provisional amounts that occur after the effective date of this amendment with earlier application permitted for financial statements that have not been issued. The Corporation adopted the standard during the first quarter of 2016, as required, with no material impact on its results of operations, financial position or liquidity. In January 2016, the FASB issued ASU No. 2016-01, “Financial Instruments (Subtopic 825-10).” The ASU amends certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. This amendment supersedes the guidance to classify equity securities with readily determinable fair values into different categories, requires equity securities to be measured at fair value with changes in the fair value recognized through net income, and simplifies the impairment assessment of equity investments without readily determinable fair values. The amendment requires public business entities that are required to disclose the fair value of financial instruments measured at amortized cost on the balance sheet to measure that fair value using the exit price notion. The amendment requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option. The amendment requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or in the accompanying notes to the financial statements. The amendment reduces diversity in current practice by clarifying that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available for sale securities in combination with the entity’s other deferred tax assets. This amendment is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Entities should apply the amendment by means of a cumulative-effect adjustment as of the beginning of the fiscal year of adoption, with the exception of the amendment related to equity securities without readily determinable fair values, which should be applied prospectively to equity investments that exist as of the date of adoption. The Corporation intends to adopt the accounting standard during the first quarter of 2018, as required, and is currently evaluating the impact on its results of operations, financial position and liquidity. In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842).” The ASU intends to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities and disclosing key information about leasing arrangements. The ASU will require lessees to recognize the following for all leases (with the exception of short-term leases) at the commencement date: (1) a lease liability, which is a lessees’ obligation to make lease payments arising from a lease, measured on a discounted basis; and (2) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Under the new guidance, lessor accounting is largely unchanged. Certain targeted improvements were made to align, where necessary, lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers. The new lease guidance simplifies the accounting for sale and leaseback transactions primarily because lessees must recognize lease assets and lease liabilities. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. The ASU is effective for public companies for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, with early adoption permitted. The Corporation intends to adopt the accounting standard during the first quarter of 2019, as required, and is currently evaluating the impact on its results of operations, financial position and liquidity. In March 2016, the FASB issued ASU No. 2016-09, “ Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.” ASU No. 2016-09 simplifies several aspects of the accounting for share-based payment transactions, including income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. The Corporation early adopted ASU No. 2016-09 on October 1, 2016 with an effective date of January 1, 2016, which resulted in a reclassification of $139,000 from additional paid-in capital to income tax expense, representing excess tax benefits previously recognized in additional paid-in capital during the nine months ended September 30, 2016. During the three months ended December 31, 2016, the Corporation recognized a benefit of $4,000 in income taxes for excess tax benefits that occurred in the current quarter. Adoption of the standard impacted the Corporation’s previously reported quarterly results as follows: For the Three Months Ended September 30, 2016 June 30, 2016 March 31, 2016 As Reported As Adjusted As Reported As Adjusted As Reported As Adjusted (Dollars in Thousands, Except Share Data) Income tax (benefit) expense $ (2,895 ) $ (3,020 ) $ 1,628 $ 1,621 $ 2,362 $ 2,356 Net income 2,540 2,665 3,716 3,723 4,547 4,553 Effective tax rate NM NM 30.5 % 30.3 % 34.2 % 34.1 % Earnings per common share: Basic $ 0.29 $ 0.31 $ 0.43 $ 0.43 $ 0.52 $ 0.52 Diluted 0.29 0.31 0.43 0.43 0.52 0.52 Additional paid-in capital 77,544 77,419 77,127 77,120 76,851 76,845 Retained earnings 88,255 88,380 86,760 86,767 84,089 84,095 Return on average assets (annualized) 0.56 % 0.59 % 0.81 % 0.82 % 1.00 % 1.00 % Return on average equity (annualized) 6.38 % 6.69 % 9.43 % 9.45 % 11.68 % 11.70 % NM = Not meaningful For the year ended December 31, 2016, the Corporation reclassified excess tax benefits from other financing activities to other operating activities and for the years ended December 31, 2016, 2015 and 2014, the Corporation classified taxes paid related to net share settlement of equity awards in financing activities in the consolidated statements of cash flows, respectively. The Corporation elected to account for forfeitures as they occur. In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments- Credit Losses (Topic 326).” The ASU replaces the incurred loss impairment methodology for recognizing credit losses with a methodology that reflects all expected credit losses. The ASU also requires consideration of a broader range of information to inform credit loss estimates, including such factors as past events, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. The amendments affect loans, debt securities, trade receivables, net investments in leases, off-balance-sheet credit exposures, and any other financial asset not excluded from the scope that have the contractual right to receive cash. Entities will apply the amendments in the ASU through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. The ASU is effective for public companies for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted as of the fiscal years beginning after December 15, 2018. The Corporation intends to adopt the accounting standard during the first quarter of 2020, as required, and is currently evaluating the impact on its results of operations, financial position and liquidity. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230). The ASU provides guidance on eight specific cash flow issues with the objective of reducing diversity in practice. The ASU is effective for public companies for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted. The amendments in this update will be applied retrospectively to each prior period presented. The Corporation intends to adopt the accounting standard during the first quarter of 2018, as required, and is currently evaluating the impact on its results of operations, financial position and liquidity. In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606),” with an original effective date for annual reporting periods beginning after December 15, 2016. The ASU is a converged standard between the FASB and the IASB that provides a single comprehensive revenue recognition model for all contracts with customers across transactions and industries. The primary objective of the ASU is revenue recognition that represents the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued ASU No. 2015-14, which defers the effective date of ASU 2014-09 to annual and interim reporting periods in fiscal years beginning after December 15, 2017. Earlier application is permitted only as of annual and interim reporting periods in fiscal years beginning after December 15, 2016. In March 2016, the FASB issued ASU No. 2016-08, “ Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net.” The ASU intends to improve the operability and understandability of the implementation guidance of ASU 2014-09 on principal versus agent considerations. In April, May and December 2016, the FASB also issued ASU No. 2016-10, No. 2016-12 and No. 2016-20, respectively, related to Topic 606. The amendments do not change the core principals of the previously issued guidance, but instead further clarify and provide implementation guidance for certain aspects of the original ASU. The Corporation intends to adopt the accounting standards during the first quarter of 2018, as required. The Corporation has conducted its initial assessment and is currently evaluating contracts to assess and quantify accounting methodology changes resulting from the adoption of this standard. The FASB continues to release new accounting guidance related to the adoption of this standard, which could impact the Corporation's initial assessment and may change the conclusions reached as to the application of this new guidance.

Loan and Lease Receivables, I31

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Policies)	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Allowance for Loan and Lease Losses	To determine the level and composition of the allowance for loan and lease losses, the Corporation categorizes the portfolio into segments with similar risk characteristics. First, the Corporation evaluates loans and leases for potential impairment classification. The Corporation analyzes each loan and lease determined to be impaired on an individual basis to determine a specific reserve based upon the estimated value of the underlying collateral for collateral-dependent loans, or alternatively, the present value of expected cash flows. The Corporation applies historical trends from established risk factors to each category of loans and leases that has not been individually evaluated for the purpose of establishing the general portion of the allowance.

Fair Value (Policies)

Fair Value (Policies)	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurement	. The Corporation determines the fair values of its financial instruments based on the fair value hierarchy established in ASC Topic 820, which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Fair value is defined as the price that would be received in an orderly transaction that is not a forced liquidation or distressed sale at the measurement date and is based on exit prices. Fair value includes assumptions about risk, such as nonperformance risk in liability fair values, and is a market-based measurement, not an entity-specific measurement. The standard describes three levels of inputs that may be used to measure fair value. Level 1 — Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Corporation has the ability to access at the measurement date. Level 2 — Level 2 inputs are inputs, other than quoted prices included with Level 1, that are observable for the asset or liability either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 — Level 3 inputs are supported by little or no market activity and are significant to the fair value of the assets or liabilities. In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. The Corporation’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability. Disclosure of fair value information about financial instruments, for which it is practicable to estimate that value, is required whether or not recognized in the Consolidated Balance Sheets. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. In that regard, the derived fair value estimates cannot be substantiated by comparison to independent markets and, in many cases, could not be realized in immediate settlement of the instruments. Certain financial instruments and all non-financial instruments are excluded from the disclosure requirements. Accordingly, the aggregate fair value amounts presented do not necessarily represent the underlying value of the Corporation. Cash and Cash Equivalents: The carrying amount reported for cash and due from banks and interest bearing deposits held by the Corporation approximates fair value because of its immediate availability and because it does not present unanticipated credit concerns. As of December 31, 2016 and 2015 , the Corporation held $20.3 million and $9.1 million , respectively, of commercial paper. The fair value of commercial paper is classified as a Level 2 input due to the lack of available independent pricing sources. The carrying value of brokered certificates of deposit purchased approximates the fair value for these instruments. The fair value of brokered certificates of deposits purchased is based on the discounted value of contractual cash flows using a discount rate reflective of rates currently offered for deposits of similar remaining maturities. As December 31, 2016 and 2015 , the Corporation held $1.6 million and $4.5 million , respectively, of brokered certificates of deposits. Securities: The fair value measurements of investment securities are determined by a third-party pricing service which considers observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, trade execution data, market consensus prepayment speeds, credit information and the securities’ terms and conditions, among other things. The fair value measurements are subject to independent verification by another pricing source on a quarterly basis to review for reasonableness. Any significant differences in pricing are reviewed with appropriate members of management who have the relevant technical expertise to assess the results. The Corporation has determined that these valuations are classified in Level 2 of the fair value hierarchy. When the independent pricing service does not provide a fair value measurement for a particular security, the Corporation will estimate the fair value based on specific information about each security. Fair values derived in this manner are classified in Level 3 of the fair value hierarchy. Loans Held for Sale: Loans held for sale, which consist of residential real estate mortgage loans and the guaranteed portion of SBA loans, are carried at the lower of cost or estimated fair value. The estimated fair value is based on what secondary markets are currently offering for portfolios with similar characteristics. Loans and Lease Receivables, net: The fair value estimation process for the loan portfolio uses an exit price concept and reflects discounts that the Corporation believes are consistent with liquidity discounts in the market place. Fair values are estimated for portfolios of loans with similar financial characteristics. The fair value of performing and nonperforming loans is calculated by discounting scheduled and expected cash flows through the estimated maturity using estimated market rates that reflect the credit and interest rate risk inherent in the portfolio of loans and then applying a discount factor based upon the embedded credit risk of the loan and the fair value of collateral securing nonperforming loans when the loan is collateral dependent. The estimate of maturity is based on the Banks’ historical experience with repayments for each loan classification, modified, as required, by an estimate of the effect of current economic and lending conditions. Significant unobservable inputs include, but are not limited to, discounts (investor yield premiums) applied to fair value calculations to further determine the exit price value of a portfolio of loans. Federal Home Loan Bank and Federal Reserve Bank Stock: The carrying amount of FHLB and FRB stock equals its fair value because the shares may be redeemed by the FHLB and the FRB at their carrying amount of $100 per share. Bank Owned Life Insurance: The carrying amount of the cash surrender value of life insurance approximates its fair value as the carrying value represents the current settlement amount. Accrued Interest Receivable and Accrued Interest Payable: The carrying amounts reported for accrued interest receivable and accrued interest payable approximate fair value because of their immediate availability and because they do not present unanticipated credit concerns. Deposits: The fair value of deposits with no stated maturity, such as demand deposits and money market accounts, is equal to the amount payable on demand. The fair value of time deposits is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently offered for deposits of similar remaining maturities. The fair value estimates do not include the intangible value that results from the funding provided by deposit liabilities compared to borrowing funds in the market. Borrowed Funds: Market rates currently available to the Corporation and Banks for debt with similar terms and remaining maturities are used to estimate fair value of existing debt. Interest Rate Swaps: The carrying amount and fair value of existing derivative financial instruments are based upon independent valuation models, which use widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each derivative contract. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The Corporation incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Corporation considers the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts and guarantees. Financial Instruments with Off-Balance-Sheet Risks: The fair value of the Corporation’s off-balance-sheet instruments is based on quoted market prices and fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the credit standing of the related counterparty. Commitments to extend credit and standby letters of credit are generally not marketable. Furthermore, interest rates on any amounts drawn under such commitments would generally be established at market rates at the time of the draw. Fair value would principally derive from the present value of fees received for those products. Limitations: Fair value estimates are made at a discrete point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Corporation’s entire holding of a particular financial instrument. Because no market exists for a significant portion of the Corporation’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and are not considered in the estimates.

Nature of Operations and Summ33

Nature of Operations and Summary of Significant Accounting Policies Adoption of ASU No. 2016-09 (Tables)	12 Months Ended
	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Impacts on ASU No. 2016-09 Adoption	Adoption of the standard impacted the Corporation’s previously reported quarterly results as follows: For the Three Months Ended September 30, 2016 June 30, 2016 March 31, 2016 As Reported As Adjusted As Reported As Adjusted As Reported As Adjusted (Dollars in Thousands, Except Share Data) Income tax (benefit) expense $ (2,895 ) $ (3,020 ) $ 1,628 $ 1,621 $ 2,362 $ 2,356 Net income 2,540 2,665 3,716 3,723 4,547 4,553 Effective tax rate NM NM 30.5 % 30.3 % 34.2 % 34.1 % Earnings per common share: Basic $ 0.29 $ 0.31 $ 0.43 $ 0.43 $ 0.52 $ 0.52 Diluted 0.29 0.31 0.43 0.43 0.52 0.52 Additional paid-in capital 77,544 77,419 77,127 77,120 76,851 76,845 Retained earnings 88,255 88,380 86,760 86,767 84,089 84,095 Return on average assets (annualized) 0.56 % 0.59 % 0.81 % 0.82 % 1.00 % 1.00 % Return on average equity (annualized) 6.38 % 6.69 % 9.43 % 9.45 % 11.68 % 11.70 % NM = Not meaningful

Securities (Tables)

Securities (Tables)	12 Months Ended
	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-sale Securities	The amortized cost and fair value of securities available-for-sale and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income were as follows: As of December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (In Thousands) Available-for-sale: U.S. Government agency obligations - government-sponsored enterprises $ 6,298 $ 7 $ (10 ) $ 6,295 Municipal obligations 8,246 2 (92 ) 8,156 Asset-backed securities 1,116 — (35 ) 1,081 Collateralized mortgage obligations - government issued 30,936 423 (146 ) 31,213 Collateralized mortgage obligations - government-sponsored enterprises 99,865 252 (969 ) 99,148 $ 146,461 $ 684 $ (1,252 ) $ 145,893 As of December 31, 2015 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (In Thousands) Available-for-sale: U.S. Government agency obligations - government-sponsored enterprises $ 8,047 $ 2 $ (32 ) $ 8,017 Municipal obligations 4,278 12 (7 ) 4,283 Asset-backed securities 1,327 — (58 ) 1,269 Collateralized mortgage obligations - government issued 43,845 814 (116 ) 44,543 Collateralized mortgage obligations - government-sponsored enterprises 82,707 145 (416 ) 82,436 $ 140,204 $ 973 $ (629 ) $ 140,548
Schedule of Held-to-maturity Securities	The amortized cost and fair value of securities held-to-maturity and the corresponding amounts of gross unrealized gains and losses were as follows: As of December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (In Thousands) Held-to-maturity: U.S. Government agency obligations - government-sponsored enterprises $ 1,497 $ 2 $ (5 ) $ 1,494 Municipal obligations 21,173 62 (78 ) 21,157 Collateralized mortgage obligations - government issued 9,148 17 (38 ) 9,127 Collateralized mortgage obligations - government-sponsored enterprises 6,794 6 (58 ) 6,742 $ 38,612 $ 87 $ (179 ) $ 38,520 As of December 31, 2015 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (In Thousands) Held-to-maturity: U.S. Government agency obligations - government-sponsored enterprises $ 1,495 $ 1 $ (11 ) $ 1,485 Municipal obligations 16,038 332 (5 ) 16,365 Collateralized mortgage obligations - government issued 11,718 32 (41 ) 11,709 Collateralized mortgage obligations - government-sponsored enterprises 8,031 12 (44 ) 7,999 $ 37,282 $ 377 $ (101 ) $ 37,558
Investments Classified by Contractual Maturity	The amortized cost and fair value of securities by contractual maturity at December 31, 2016 are shown below. Actual maturities may differ from contractual maturities because issuers have the right to call or prepay certain obligations without call or prepayment penalties. Available-for-Sale Held-to-Maturity Amortized Cost Fair Value Amortized Cost Fair Value (In Thousands) Due in one year or less $ 4,532 $ 4,532 $ — $ — Due in one year through five years 15,308 15,245 7,111 7,100 Due in five through ten years 66,396 66,710 13,994 13,978 Due in over ten years 60,225 59,406 17,507 17,442 $ 146,461 $ 145,893 $ 38,612 $ 38,520
Schedule of Unrealized Loss on Investments	A summary of unrealized loss information for securities available-for-sale, categorized by security type and length of time for which the security has been in a continuous unrealized loss position, follows: December 31, 2016 Less than 12 Months 12 Months or Longer Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized (In Thousands) Available-for-sale: U.S. Government agency obligations - government-sponsored enterprises $ 1,991 $ 10 $ — $ — $ 1,991 $ 10 Municipal obligations 7,207 89 406 3 7,613 92 Asset-backed securities — — 1,081 35 1,081 35 Collateralized mortgage obligations - government issued 10,552 130 493 16 11,045 146 Collateralized mortgage obligations - government-sponsored enterprises 54,843 931 1,819 38 56,662 969 $ 74,593 $ 1,160 $ 3,799 $ 92 $ 78,392 $ 1,252 December 31, 2015 Less than 12 Months 12 Months or Longer Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized (In Thousands) Available-for-sale: U.S. Government agency obligations - government-sponsored enterprises $ 3,536 $ 13 $ 1,981 $ 19 $ 5,517 $ 32 Municipal obligations 2,403 7 — — 2,403 7 Asset-backed securities 1,269 58 — — 1,269 58 Collateralized mortgage obligations - government issued 3,373 19 5,687 97 9,060 116 Collateralized mortgage obligations - government-sponsored enterprises 59,992 373 1,717 43 61,709 416 $ 70,573 $ 470 $ 9,385 $ 159 $ 79,958 $ 629 A summary of unrealized loss information for securities held-to-maturity, categorized by security type and length of time for which the security has been in a continuous unrealized loss position, follows: December 31, 2016 Less than 12 Months 12 Months or Longer Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized (In Thousands) Held-to-maturity: U.S. Government agency obligations - government-sponsored enterprises $ 1,000 $ 5 $ — $ — $ 1,000 $ 5 Municipal obligations 9,472 78 — — 9,472 78 Collateralized mortgage obligations - government issued 6,980 38 — — 6,980 38 Collateralized mortgage obligations - government-sponsored enterprises 4,682 58 — — 4,682 58 $ 22,134 $ 179 $ — $ — $ 22,134 $ 179 December 31, 2015 Less than 12 Months 12 Months or Longer Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized (In Thousands) Held-to-maturity: U.S. Government agency obligations - government-sponsored enterprises $ — $ — $ 1,000 $ 11 $ 1,000 $ 11 Municipal obligations 436 4 199 1 635 5 Collateralized mortgage obligations - government issued 6,518 $ 41 — — 6,518 41 Collateralized mortgage obligations - government-sponsored enterprises 5,168 44 — — 5,168 44 $ 12,122 $ 89 $ 1,199 $ 12 $ 13,321 $ 101

Loan and Lease Receivables, I35

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Tables)	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Loan Composition Schedule	Loan and lease receivables consist of the following: December 31, December 31, (In Thousands) Commercial real estate: Commercial real estate — owner occupied $ 176,459 $ 176,322 Commercial real estate — non-owner occupied 473,158 436,901 Land development 56,638 59,779 Construction 101,206 100,625 Multi-family 92,762 80,254 1-4 family 45,651 50,304 Total commercial real estate 945,874 904,185 Commercial and industrial 450,298 472,193 Direct financing leases, net 30,951 31,093 Consumer and other: Home equity and second mortgages 8,412 8,237 Other 16,329 16,319 Total consumer and other 24,741 24,556 Total gross loans and leases receivable 1,451,864 1,432,027 Less: Allowance for loan and lease losses 20,912 16,316 Deferred loan fees 1,189 1,062 Loans and leases receivable, net $ 1,429,763 $ 1,414,649
Schedule of Fair Value of Credit Impaired Loans Acquired	The following table reflects the contractually required payments receivable and fair value of the Corporation’s purchased credit-impaired loans as of December 31, 2016 and 2015 : December 31, December 31, (In Thousands) Contractually required payments $ 3,265 $ 5,291 Fair value of purchased credit-impaired loans 1,432 3,250
Accretable Yield Rollforward	The following table presents a rollforward of the accretable yield for the year ended December 31, 2016 and 2015 : December 31, December 31, (In Thousands) Accretable yield, beginning of period $ 414 $ 676 Accretion recognized in interest income (129 ) (50 ) Reclassification to nonaccretable difference for loans with changing cash flows (1) (244 ) (60 ) Changes in accretable yield for non-credit related changes in expected cash flows (2) 94 (152 ) Accretable yield, end of period $ 135 $ 414
Financing Receivable by Credit Quality Indicators	The following information illustrates ending balances of the Corporation’s loan and lease portfolio, including impaired loans by class of receivable, and considering certain credit quality indicators as of December 31, 2016 and 2015 : December 31, 2016 Category I II III IV Total (Dollars in Thousands) Commercial real estate: Commercial real estate — owner occupied $ 142,704 $ 20,294 $ 11,174 $ 2,287 $ 176,459 Commercial real estate — non-owner occupied 447,895 20,933 2,721 1,609 473,158 Land development 52,082 823 293 3,440 56,638 Construction 93,510 3,154 1,624 2,918 101,206 Multi-family 87,418 1,937 3,407 — 92,762 1-4 family 38,504 3,144 1,431 2,572 45,651 Total commercial real estate 862,113 50,285 20,650 12,826 945,874 Commercial and industrial 348,201 42,949 46,675 12,473 450,298 Direct financing leases, net 29,351 1,600 — — 30,951 Consumer and other: Home equity and second mortgages 8,271 121 12 8 8,412 Other 15,714 — 11 604 16,329 Total consumer and other 23,985 121 23 612 24,741 Total gross loans and leases receivable $ 1,263,650 $ 94,955 $ 67,348 $ 25,911 $ 1,451,864 Category as a % of total portfolio 87.04 % 6.54 % 4.64 % 1.78 % 100.00 % December 31, 2015 Category I II III IV Total (Dollars in Thousands) Commercial real estate: Commercial real estate — owner occupied $ 156,379 $ 7,654 $ 9,311 $ 2,978 $ 176,322 Commercial real estate — non-owner occupied 410,517 20,662 3,408 2,314 436,901 Land development 52,817 2,241 309 4,412 59,779 Construction 98,693 851 564 517 100,625 Multi-family 79,368 884 — 2 80,254 1-4 family 41,086 3,985 1,865 3,368 50,304 Total commercial real estate 838,860 36,277 15,457 13,591 904,185 Commercial and industrial 430,199 7,139 25,706 9,149 472,193 Direct financing leases, net 29,514 1,013 528 38 31,093 Consumer and other: Home equity and second mortgages 7,497 — 141 599 8,237 Other 15,616 48 — 655 16,319 Total consumer and other 23,113 48 141 1,254 24,556 Total gross loans and leases receivable $ 1,321,686 $ 44,477 $ 41,832 $ 24,032 $ 1,432,027 Category as a % of total portfolio 92.29 % 3.11 % 2.92 % 1.68 % 100.00 %
Past Due Financing Receivables	The delinquency aging of the loan and lease portfolio by class of receivable as of December 31, 2016 and 2015 were as follows: December 31, 2016 30-59 60-89 Greater Total Past Due Current Total (Dollars in Thousands) Accruing loans and leases Commercial real estate: Owner occupied $ — $ — $ — $ — $ 174,236 $ 174,236 Non-owner occupied — — — — 471,549 471,549 Land development — — — — 53,198 53,198 Construction — — — — 98,288 98,288 Multi-family — — — — 92,762 92,762 1-4 family 75 — — 75 43,639 43,714 Commercial and industrial 55 468 — 523 437,312 437,835 Direct financing leases, net — — — — 30,951 30,951 Consumer and other: Home equity and second mortgages — — — — 8,412 8,412 Other — — — — 15,725 15,725 Total $ 130 $ 468 $ — $ 598 $ 1,426,072 $ 1,426,670 Non-accruing loans and leases Commercial real estate: Owner occupied $ — $ — $ 1,183 $ 1,183 $ 1,040 $ 2,223 Non-owner occupied — — — — 1,609 1,609 Land development — — — — 3,440 3,440 Construction 2,482 — 436 2,918 — 2,918 Multi-family — — — — — — 1-4 family — — 1,240 1,240 697 1,937 Commercial and industrial 3,345 168 6,740 10,253 2,210 12,463 Direct financing leases, net — — — — — — Consumer and other: Home equity and second mortgages — — — — — — Other 186 — 378 564 40 604 Total $ 6,013 $ 168 $ 9,977 $ 16,158 $ 9,036 $ 25,194 Total loans and leases Commercial real estate: Owner occupied $ — $ — $ 1,183 $ 1,183 $ 175,276 $ 176,459 Non-owner occupied — — — — 473,158 473,158 Land development — — — — 56,638 56,638 Construction 2,482 — 436 2,918 98,288 101,206 Multi-family — — — — 92,762 92,762 1-4 family 75 — 1,240 1,315 44,336 45,651 Commercial and industrial 3,400 636 6,740 10,776 439,522 450,298 Direct financing leases, net — — — — 30,951 30,951 Consumer and other: Home equity and second mortgages — — — — 8,412 8,412 Other 186 — 378 564 15,765 16,329 Total $ 6,143 $ 636 $ 9,977 $ 16,756 $ 1,435,108 $ 1,451,864 Percent of portfolio 0.42 % 0.04 % 0.69 % 1.15 % 98.85 % 100.00 % December 31, 2015 30-59 60-89 Greater Total Past Due Current Total (Dollars in Thousands) Accruing loans and leases Commercial real estate: Owner occupied $ — $ — $ — $ — $ 173,416 $ 173,416 Non-owner occupied — — — — 435,222 435,222 Land development — — — — 55,386 55,386 Construction — — — — 100,228 100,228 Multi-family — — — — 80,252 80,252 1-4 family 78 — — 78 47,676 47,754 Commercial and industrial — — — — 463,057 463,057 Direct financing leases, net — — — — 31,055 31,055 Consumer and other: Home equity and second mortgages — — — — 7,695 7,695 Other — — — — 15,664 15,664 Total $ 78 $ — $ — $ 78 $ 1,409,651 $ 1,409,729 Non-accruing loans and leases Commercial real estate: Owner occupied $ — $ 473 $ — $ 473 $ 2,433 $ 2,906 Non-owner occupied — — — — 1,679 1,679 Land development — — — — 4,393 4,393 Construction 397 — — 397 — 397 Multi-family — — — — 2 2 1-4 family 430 34 895 1,359 1,191 2,550 Commercial and industrial 2,077 — 564 2,641 6,495 9,136 Direct financing leases, net — — — — 38 38 Consumer and other: Home equity and second mortgages — — 250 250 292 542 Other — — 655 655 — 655 Total $ 2,904 $ 507 $ 2,364 $ 5,775 $ 16,523 $ 22,298 Total loans and leases Commercial real estate: Owner occupied $ — $ 473 $ — $ 473 $ 175,849 $ 176,322 Non-owner occupied — — — — 436,901 436,901 Land development — — — — 59,779 59,779 Construction 397 — — 397 100,228 100,625 Multi-family — — — — 80,254 80,254 1-4 family 508 34 895 1,437 48,867 50,304 Commercial and industrial 2,077 — 564 2,641 469,552 472,193 Direct financing leases, net — — — — 31,093 31,093 Consumer and other: Home equity and second mortgages — — 250 250 7,987 8,237 Other — — 655 655 15,664 16,319 Total $ 2,982 $ 507 $ 2,364 $ 5,853 $ 1,426,174 $ 1,432,027 Percent of portfolio 0.21 % 0.04 % 0.16 % 0.41 % 99.59 % 100.00 %
Schedule of Financing Receivables, Non Accrual Status	The Corporation’s total impaired assets consisted of the following at December 31, 2016 and 2015 , respectively. December 31, December 31, (In Thousands) Non-accrual loans and leases Commercial real estate: Commercial real estate — owner occupied $ 2,223 $ 2,907 Commercial real estate — non-owner occupied 1,609 1,678 Land development 3,440 4,393 Construction 2,918 397 Multi-family — 2 1-4 family 1,937 2,550 Total non-accrual commercial real estate 12,127 11,927 Commercial and industrial 12,463 9,136 Direct financing leases, net — 38 Consumer and other: Home equity and second mortgages — 542 Other 604 655 Total non-accrual consumer and other loans 604 1,197 Total non-accrual loans and leases 25,194 22,298 Foreclosed properties, net 1,472 1,677 Total non-performing assets 26,666 23,975 Performing troubled debt restructurings 717 1,735 Total impaired assets $ 27,383 $ 25,710 December 31, December 31, Total non-accrual loans and leases to gross loans and leases 1.74 % 1.56 % Total non-performing assets to total gross loans and leases plus foreclosed properties, net 1.83 1.67 Total non-performing assets to total assets 1.50 1.35 Allowance for loan and lease losses to gross loans and leases 1.44 1.14 Allowance for loan and lease losses to non-accrual loans and leases 83.00 73.17
Troubled Debt Restructurings on Financing Receivables	As of December 31, 2016 As of December 31, 2015 Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment (Dollars in Thousands) Commercial real estate: Commercial real estate — owner occupied 3 $ 1,065 $ 930 3 $ 1,209 $ 1,188 Commercial real estate — non-owner occupied 1 158 39 5 1,150 904 Land development 1 5,745 3,440 2 5,853 4,393 Construction 2 331 314 1 181 200 Multi-family — — — 1 184 2 1-4 family 11 1,391 1,393 15 2,035 1,869 Commercial and industrial 10 8,094 7,058 10 7,572 8,330 Consumer and other: Home equity and second mortgage 1 37 8 4 461 349 Other 1 2,076 378 1 2,076 655 Total 30 $ 18,897 $ 13,560 42 $ 20,721 $ 17,890
Troubled Debt Restructurings by Modification Type	As of December 31, 2016 and 2015 , the Corporation’s troubled debt restructurings grouped by type of concession were as follows: As of December 31, 2016 As of December 31, 2015 Number of Loans Post-Modification Recorded Investment Number of Loans Post-Modification Recorded Investment (Dollars in Thousands) Commercial real estate: Extension of term 1 $ 8 1 $ 24 Interest rate concession 1 52 1 55 Combination of extension of term and interest rate concession 16 6,056 25 8,477 Commercial and industrial: Combination of extension of term and interest rate concession 10 7,058 10 8,330 Consumer and other: Extension of term 1 378 1 655 Combination of extension of term and interest rate concession 1 8 4 349 Total 30 $ 13,560 42 $ 17,890
Impaired Financing Receivables	The following represents additional information regarding the Corporation’s impaired loans and leases, including performing troubled debt restructurings, by class: As of and for the Year Ended December 31, 2016 Recorded Investment Unpaid Principal Balance Impairment Reserve Average Recorded Investment (1) Foregone Interest Income Interest Income Recognized Net Foregone Interest Income (In Thousands) With no impairment reserve recorded: Commercial real estate: Owner occupied $ 1,788 $ 1,788 $ — $ 3,577 $ 328 $ 118 $ 210 Non-owner occupied 1,609 1,647 — 1,318 91 79 12 Land development 3,440 6,111 — 3,898 107 — 107 Construction 436 438 — 291 20 — 20 Multi-family — — — — 1 134 (133 ) 1-4 family 2,379 2,379 — 2,755 125 94 31 Commercial and industrial 3,769 3,769 — 918 143 62 81 Direct financing leases, net — — — 6 — — — Consumer and other: Home equity and second mortgages 8 8 — 307 16 127 (111 ) Other 604 1,270 — 529 71 — 71 Total $ 14,033 $ 17,410 $ — $ 13,599 $ 902 $ 614 $ 288 With impairment reserve recorded: Commercial real estate: Owner occupied $ 499 $ 499 $ 70 $ 111 $ 28 $ — $ 28 Non-owner occupied — — — — — — — Land development — — — — — — — Construction 2,482 2,482 1,790 834 45 — 45 Multi-family — — — — — — — 1-4 family 193 199 39 203 5 — 5 Commercial and industrial 8,704 8,704 3,700 8,239 637 — 637 Direct financing leases, net — — — — — — — Consumer and other: Home equity and second mortgages — — — — — — — Other — — — — — — — Total $ 11,878 $ 11,884 $ 5,599 $ 9,387 $ 715 $ — $ 715 Total: Commercial real estate: Owner occupied $ 2,287 $ 2,287 $ 70 $ 3,688 $ 356 $ 118 $ 238 Non-owner occupied 1,609 1,647 — 1,318 91 79 12 Land development 3,440 6,111 — 3,898 107 — 107 Construction 2,918 2,920 1,790 1,125 65 — 65 Multi-family — — — — 1 134 (133 ) 1-4 family 2,572 2,578 39 2,958 130 94 36 Commercial and industrial 12,473 12,473 3,700 9,157 780 62 718 Direct financing leases, net — — — 6 — — — Consumer and other: Home equity and second mortgages 8 8 — 307 16 127 (111 ) Other 604 1,270 — 529 71 — 71 Grand total $ 25,911 $ 29,294 $ 5,599 $ 22,986 $ 1,617 $ 614 $ 1,003 (1) Average recorded investment is calculated primarily using daily average balances. As of and for the Year Ended December 31, 2015 Recorded Investment Unpaid Principal Balance Impairment Reserve Average Recorded Investment (1) Foregone Interest Income Interest Income Recognized Net Foregone Interest Income (In Thousands) With no impairment reserve recorded: Commercial real estate: Owner occupied $ 2,164 $ 2,164 $ — $ 712 $ 53 $ 12 $ 41 Non-owner occupied 2,314 2,355 — 962 25 — 25 Land development 4,413 7,083 — 4,333 133 — 133 Construction 120 120 — — — 474 — — — — — Multi-family 2 369 — 10 27 — 27 1-4 family 2,423 2,486 — 1,604 82 4 78 Commercial and industrial 2,546 2,590 — 544 172 6 166 Direct financing leases, net 38 38 — 4 — — — Consumer and other: Home equity and second mortgages 500 500 — 390 23 63 (40 ) Other 655 1,321 — 688 82 — 82 Total $ 15,175 $ 19,026 $ — $ 9,721 $ 597 $ 85 $ 512 With impairment reserve recorded: Commercial real estate: Owner occupied $ 814 $ 814 $ 20 $ 215 $ 7 $ 2 $ 5 Non-owner occupied — — — — — — — Land development — — — — — — — — — — — Construction 397 397 — 48 — 34 — — — — — Multi-family — — — — — — — 1-4 family 945 950 173 605 34 — 34 Commercial and industrial 6,603 6,603 847 810 102 — 102 Direct financing leases, net — — — — — — — Consumer and other: Home equity and second mortgages 99 99 25 58 10 — 10 Other — — — — — — — Total $ 8,858 $ 8,863 $ 1,113 $ 1,722 $ 153 $ 2 $ 151 Total: Commercial real estate: Owner occupied $ 2,978 $ 2,978 $ 20 $ 927 $ 60 $ 14 $ 46 Non-owner occupied 2,314 2,355 — 962 25 — 25 Land development 4,413 7,083 — 4,333 133 — 133 Construction 517 517 48 508 — — — Multi-family 2 369 — 10 27 — 27 1-4 family 3,368 3,436 173 2,209 116 4 112 Commercial and industrial 9,149 9,193 847 1,354 274 6 268 Direct financing leases, net 38 38 — 4 — — — Consumer and other: Home equity and second mortgages 599 599 25 448 33 63 (30 ) Other 655 1,321 — 688 82 — 82 Grand total $ 24,033 $ 27,889 $ 1,113 $ 11,443 $ 750 $ 87 $ 663 (1) Average recorded investment is calculated primarily using daily average balances. As of and for the Year Ended December 31, 2014 Recorded Investment Unpaid Principal Balance Impairment Reserve Average Recorded Investment (1) Foregone Interest Income Interest Income Recognized Net Foregone Interest Income (In Thousands) With no impairment reserve recorded: Commercial real estate: Owner occupied $ 577 $ 577 $ — $ 484 $ 30 $ 79 $ (49 ) Non-owner occupied 921 921 — 349 22 — 22 Land development 4,962 7,633 — 5,253 155 — 155 Construction 195 195 — 32 — — — Multi-family 17 384 — 24 53 — 53 1-4 family 1,181 1,218 — 380 15 12 3 Commercial and industrial 2,316 2,926 — 6,141 463 649 (186 ) Direct financing leases, net — — — — — — — Consumer and other: Home equity and second mortgages 380 380 — 495 18 — 18 Other 721 1,389 — 768 87 — 87 Total $ 11,270 $ 15,623 $ — $ 13,926 $ 843 $ 740 $ 103 With impairment reserve recorded: Commercial real estate: Owner occupied $ — $ — $ — $ — $ — $ — $ — Non-owner occupied 49 89 49 52 4 — 4 Land development — — — — — — — Construction — — — — — — — Multi-family — — — — — — — 1-4 family 390 390 155 405 18 — 18 Commercial and industrial 33 33 33 34 — — — Direct financing leases, net — — — — — — — Consumer and other: Home equity and second mortgages 53 53 53 57 5 — 5 Other — — — — — — — Total $ 525 $ 565 $ 290 $ 548 $ 27 $ — $ 27 Total: Commercial real estate: Owner occupied $ 577 $ 577 $ — $ 484 $ 30 $ 79 $ (49 ) Non-owner occupied 970 1,010 49 401 26 — 26 Land development 4,962 7,633 — 5,253 155 — 155 Construction 195 195 — 32 — — — Multi-family 17 384 — 24 53 — 53 1-4 family 1,571 1,608 155 785 33 12 21 Commercial and industrial 2,349 2,959 33 6,175 463 649 (186 ) Direct financing leases, net — — — — — — — Consumer and other: Home equity and second mortgages 433 433 53 552 23 — 23 Other 721 1,389 — 768 87 — 87 Grand total $ 11,795 $ 16,188 $ 290 $ 14,474 $ 870 $ 740 $ 130 (1) Average recorded investment is calculated primarily using daily average balances.
Allowance for Credit Losses on Financing Receivables	A summary of the activity in the allowance for loan and lease losses by portfolio segment is as follows: As of and for the Year Ended December 31, 2016 Commercial Real Estate Commercial and Industrial Consumer and Other Total (Dollars in Thousands) Allowance for loan and lease losses: Beginning balance $ 11,220 $ 4,387 $ 709 $ 16,316 Charge-offs (1,194 ) (2,273 ) (127 ) (3,594 ) Recoveries 274 91 7 372 Provision 2,084 5,765 (31 ) 7,818 Ending balance $ 12,384 $ 7,970 $ 558 $ 20,912 Ending balance: individually evaluated for impairment $ 1,899 $ 3,700 $ — $ 5,599 Ending balance: collectively evaluated for impairment $ 10,485 $ 4,270 $ 558 $ 15,313 Ending balance: loans acquired with deteriorated credit quality $ — $ — $ — $ — Loans and lease receivables: Ending balance, gross $ 945,874 $ 481,249 $ 24,741 $ 1,451,864 Ending balance: individually evaluated for impairment $ 11,222 $ 12,452 $ 612 $ 24,286 Ending balance: collectively evaluated for impairment $ 933,048 $ 468,776 $ 24,129 $ 1,425,953 Ending balance: loans acquired with deteriorated credit quality $ 1,604 $ 21 $ — $ 1,625 Allowance as percent of gross loans and leases 1.31 % 1.66 % 2.26 % 1.44 % As of and for the Year Ended December 31, 2015 Commercial Real Estate Commercial and Industrial Consumer and Other Total (Dollars in Thousands) Allowance for loan and lease losses: Beginning balance $ 8,619 $ 5,492 $ 218 $ 14,329 Charge-offs (793 ) (711 ) (9 ) (1,513 ) Recoveries 104 6 4 114 Provision 3,290 (400 ) 496 3,386 Ending balance $ 11,220 $ 4,387 $ 709 $ 16,316 Ending balance: individually evaluated for impairment $ 240 $ 847 $ 26 $ 1,113 Ending balance: collectively evaluated for impairment $ 10,980 $ 3,540 $ 683 $ 15,203 Ending balance: loans acquired with deteriorated credit quality $ — $ — $ — $ — Loans and lease receivables: Ending balance, gross $ 904,185 $ 503,286 $ 24,556 $ 1,432,027 Ending balance: individually evaluated for impairment $ 10,849 $ 8,942 $ 1,061 $ 20,852 Ending balance: collectively evaluated for impairment $ 890,594 $ 494,098 $ 23,495 $ 1,408,187 Ending balance: loans acquired with deteriorated credit quality $ 2,742 $ 246 $ 193 $ 3,181 Allowance as percent of gross loans and leases 1.24 % 0.87 % 2.89 % 1.14 %
Net Investment In Direct Financing Leases	The Corporation’s net investment in direct financing leases consists of the following: As of December 31, 2016 2015 (In Thousands) Minimum lease payments receivable $ 26,096 $ 27,361 Estimated unguaranteed residual values in leased property 7,625 7,036 Initial direct costs 106 158 Unearned lease and residual income (2,876 ) (3,462 ) Investment in commercial direct financing leases $ 30,951 $ 31,093
Schedule of Future Minimum Lease Payments for Capital Leases	Future aggregate maturities of minimum lease payments to be received are as follows: (In Thousands) Maturities during year ended December 31, 2017 $ 7,863 2018 7,584 2019 5,331 2020 3,520 2021 1,251 Thereafter 547 $ 26,096

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	A summary of premises and equipment at December 31, 2016 and 2015 is as follows: As of December 31, 2016 2015 (In Thousands) Land $ 650 $ 650 Building and leasehold improvements 3,019 2,879 Furniture and equipment 5,366 4,921 9,035 8,450 Less: accumulated depreciation (5,263 ) (4,496 ) Total premises and equipment, net $ 3,772 $ 3,954

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	Changes in the gross carrying amount, accumulated amortization and net book value of core deposit intangibles were as follows: Year Ended December 31, 2016 2015 2014 (In Thousands) Gross carrying amount $ 347 $ 347 $ 347 Less: accumulated amortization 145 83 12 Net book value $ 202 $ 264 $ 335 Amortization during the period $ 62 $ 71 $ 12
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	Estimated amortization expense of core deposit intangibles for fiscal years 2017 through 2021 are as follows: (In Thousands) Estimate for the year ended December 31, 2017 $ 54 2018 47 2019 40 2020 35 2021 26 $ 202

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Accrued Interest Receivable and Other Assets	A summary of accrued interest receivable and other assets as of December 31, 2016 and 2015 was as follows: December 31, 2016 December 31, 2015 (In Thousands) Accrued interest receivable $ 4,677 $ 4,412 Net deferred tax asset 4,052 2,633 Investment in limited partnerships 3,963 3,215 Investment in a CDE 7,106 7,500 Investment in historic development entities 737 578 Investment in Trust II 315 315 Fair value of interest rate swaps 352 552 Prepaid expenses 3,074 3,330 Other assets 4,331 1,536 Total accrued interest receivable and other assets $ 28,607 $ 24,071

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2016
Deposits [Abstract]
Deposits	The composition of deposits at December 31, 2016 and 2015 is as follows: December 31, 2016 December 31, 2015 Balance Average Balance Average Rate Balance Average Balance Average Rate (Dollars in Thousands) Non-interest-bearing transaction accounts $ 252,638 $ 246,182 — % $ 231,199 $ 211,945 — % Interest-bearing transaction accounts 183,992 169,571 0.27 165,921 125,558 0.24 Money market accounts 627,090 642,784 0.48 612,642 602,842 0.55 Certificates of deposit 58,454 65,608 0.90 79,986 106,177 0.78 Wholesale deposits 416,681 467,826 1.62 487,483 450,460 1.43 Total deposits $ 1,538,855 $ 1,591,971 0.74 $ 1,577,231 $ 1,496,982 0.73
Time Deposits By Maturity	A summary of annual maturities of certificates of deposit outstanding and wholesale deposits at December 31, 2016 is as follows: (In Thousands) Maturities during the year ended December 31, 2017 $ 145,615 2018 123,135 2019 68,089 2020 85,173 2021 21,476 Thereafter 31,647 $ 475,135

FHLB Advances, Other Borrowin40

FHLB Advances, Other Borrowings and Junior Subordinated Notes (Tables)	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Composition of borrowed funds	The composition of borrowed funds at December 31, 2016 and 2015 was as follows. Weighted average balances represent year-to-date averages. December 31, 2016 December 31, 2015 Balance Weighted Average Balance Weighted Average Rate Balance Weighted Average Balance Weighted Average Rate (Dollars in Thousands) Federal funds purchased $ — $ 178 0.92 % $ — $ 237 0.86 % FHLB advances 33,578 14,485 0.97 8,198 14,779 0.75 Other borrowings 2,590 1,739 7.64 1,592 678 9.66 Line of credit 1,010 2,079 3.26 2,510 1,619 3.18 Subordinated notes payable 22,498 22,467 7.13 22,440 22,410 7.14 Junior subordinated notes 10,004 9,997 11.07 9,990 9,982 11.14 $ 69,680 $ 50,945 6.03 $ 44,730 $ 49,705 5.94 Short-term borrowings $ 20,588 $ 7,010 Long-term borrowings 49,092 37,720 $ 69,680 $ 44,730

Stockholders' Equity and Regu41

Stockholders' Equity and Regulatory Capital (Tables)	12 Months Ended
	Dec. 31, 2016
Regulatory Capital Requirements [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	The following table summarizes both the Corporation’s and Banks’ capital ratios and the ratios required by their federal regulators at December 31, 2016 and 2015 , respectively: Actual Minimum Required for Capital Adequacy Purposes For Capital Adequacy Purposes Plus Capital Conservation Buffer Minimum Required to Be Well Capitalized Under Prompt Corrective Action Requirements Amount Ratio Amount Ratio Amount Ratio Amount Ratio (Dollars in Thousands) As of December 31, 2016 Total capital (to risk-weighted assets) Consolidated $ 204,117 11.74 % $ 139,101 8.00 % $ 149,968 8.625 % N/A N/A First Business Bank 147,811 11.55 102,362 8.00 110,360 8.625 $ 127,953 10.00 % First Business Bank – Milwaukee 24,347 11.02 17,680 8.00 19,062 8.625 22,101 10.00 Alterra Bank 31,699 13.27 19,106 8.00 20,599 8.625 23,882 10.00 Tier 1 capital (to risk-weighted assets) Consolidated $ 160,964 9.26 $ 104,326 6.00 $ 115,193 6.625 % N/A N/A First Business Bank 134,208 10.49 76,772 6.00 84,769 6.625 $ 102,362 8.00 First Business Bank – Milwaukee 22,323 10.10 13,260 6.00 14,642 6.625 17,680 8.00 Alterra Bank 28,685 12.01 14,329 6.00 15,822 6.625 19,106 8.00 Common equity tier 1 capital (to risk-weighted assets) Consolidated $ 150,960 8.68 $ 78,244 4.50 $ 89,111 5.125 % N/A N/A First Business Bank 134,208 10.49 57,579 4.50 65,576 5.125 $ 83,170 6.50 First Business Bank – Milwaukee 22,323 10.10 9,945 4.50 11,327 5.125 14,365 6.50 Alterra Bank 28,685 12.01 10,747 4.50 12,240 5.125 15,524 6.50 Tier 1 leverage capital (to adjusted assets) Consolidated $ 160,964 9.07 $ 70,985 4.00 $ 70,985 4.00 % N/A N/A First Business Bank 134,208 10.40 51,600 4.00 51,600 4.00 $ 64,500 5.00 First Business Bank – Milwaukee 22,323 9.15 9,758 4.00 9,758 4.00 12,198 5.00 Alterra Bank 28,685 10.58 10,842 4.00 10,842 4.00 13,552 5.00 Actual Minimum Required for Capital Adequacy Purposes Minimum Required to Be Well Capitalized Under Prompt Corrective Action Requirements Amount Ratio Amount Ratio Amount Ratio (Dollars in Thousands) As of December 31, 2015 Total capital (to risk-weighted assets) Consolidated $ 189,163 11.11 % $ 136,208 8.00 % N/A N/A First Business Bank 141,388 11.12 101,754 8.00 $ 127,193 10.00 % First Business Bank – Milwaukee 20,931 12.03 13,914 8.00 17,392 10.00 Alterra Bank 30,300 11.39 21,279 8.00 26,598 10.00 Tier 1 capital (to risk-weighted assets) Consolidated $ 149,920 8.81 % $ 102,156 6.00 % N/A N/A First Business Bank 128,852 10.13 76,316 6.00 $ 101,754 8.00 % First Business Bank – Milwaukee 19,172 11.02 10,435 6.00 13,914 8.00 Alterra Bank 28,278 10.63 15,959 6.00 21,279 8.00 Common equity tier 1 capital (to risk-weighted assets) Consolidated $ 139,920 8.22 % $ 76,617 4.50 % N/A N/A First Business Bank 128,852 10.13 57,237 4.50 $ 110,669 6.50 % First Business Bank – Milwaukee 19,172 11.02 7,826 4.50 82,675 6.50 Alterra Bank 28,278 10.63 11,969 4.50 11,305 6.50 Tier 1 leverage capital (to adjusted assets) Consolidated $ 149,920 8.63 % $ 69,466 4.00 % N/A N/A First Business Bank 128,852 10.44 49,359 4.00 $ 61,698 5.00 % First Business Bank – Milwaukee 19,172 7.81 9,821 4.00 12,276 5.00 Alterra Bank 28,278 9.89 11,441 4.00 14,301 5.00
Reconciliation of stockholders' equity to federal regulatory capital	The following table reconciles stockholders’ equity to federal regulatory capital at December 31, 2016 and 2015 , respectively: As of December 31, 2016 2015 (In Thousands) Stockholders’ equity of the Corporation $ 161,650 $ 150,832 Net unrealized and accumulated losses on specific items 522 80 Disallowed servicing assets (652 ) (370 ) Disallowed goodwill and other intangibles (10,560 ) (10,622 ) Junior subordinated notes 10,004 10,000 Tier 1 capital 160,964 149,920 Allowable general valuation allowances and subordinated debt 43,153 39,243 Total capital $ 204,117 $ 189,163

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	For the Year Ended December 31, 2016 2015 2014 (Dollars in Thousands, Except Share Data) Basic earnings per common share Net income $ 14,909 $ 16,514 $ 14,139 Less: earnings allocated to participating securities 219 273 294 Basic earnings allocated to common shareholders $ 14,690 $ 16,241 $ 13,845 Weighted-average common shares outstanding, excluding participating securities 8,573,722 8,549,176 7,869,956 Basic earnings per common share $ 1.71 $ 1.90 $ 1.76 Diluted earnings per common share Earnings allocated to common shareholders $ 14,690 $ 16,241 $ 13,845 Reallocation of undistributed earnings — — 1 Diluted earnings allocated to common shareholders $ 14,690 $ 16,241 $ 13,846 Weighted-average common shares outstanding, excluding participating securities 8,573,722 8,549,176 7,869,956 Dilutive effect of share-based awards — 1,146 36,811 Weighted-average diluted common shares outstanding, excluding participating securities 8,573,722 8,550,322 7,906,767 Diluted earnings per common share $ 1.71 $ 1.90 $ 1.75

Share-Based Compensation (Table

Share-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity	Restricted stock activity for the year ended December 31, 2016 , 2015 and 2014 was as follows: For the Year Ended December 31, 2016 2015 2014 Number of Restricted Shares Weighted Average Grant-Date Fair Value Number of Restricted Shares Weighted Average Grant-Date Fair Value Number of Restricted Shares Weighted Average Grant-Date Fair Value Nonvested balance at beginning of year 135,471 $ 20.13 154,998 $ 16.97 169,418 $ 11.55 Granted 60,415 22.74 53,790 22.52 64,522 22.49 Vested (56,090 ) 18.71 (64,874 ) 15.23 (78,942 ) 9.86 Forfeited (23,551 ) 20.90 (8,443 ) 15.03 — — Nonvested balance as of end of year 116,245 21.13 135,471 20.13 154,998 16.97
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs	For the years ended December 31, 2016 , 2015 and 2014 , share-based compensation expense related to restricted stock included in the Consolidated Statements of Income was as follows: For the Year Ended December 31, 2016 2015 2014 (In Thousands) Share-based compensation expense $ 994 $ 1,063 $ 887

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2016
Leases [Abstract]
Future Minimum Lease Payments	Future minimum lease payments for noncancelable operating leases for each of the five succeeding years and thereafter are as follows: (In Thousands) 2017 $ 1,253 2018 1,072 2019 1,044 2020 1,036 2021 928 Thereafter 4,932 $ 10,265

Other Operating Expenses (Table

Other Operating Expenses (Tables)	12 Months Ended
	Dec. 31, 2016
Other Operating Expenses [Abstract]
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]	A summary of other non-interest expenses for the years ended December 31, 2016 , 2015 and 2014 is as follows: Year Ended December 31, 2016 2015 2014 (In Thousands) General and administrative expenses $ 1,545 $ 1,759 $ 1,024 Travel and other employee expenses 1,354 1,277 1,069 Computer software expenses 2,160 1,649 886 Partnership income (790 ) (481 ) (774 ) Foreclosed properties expenses 25 52 5 Other expenses 104 295 202 Total other non-interest expense $ 4,398 $ 4,551 $ 2,412

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	Income tax expense for the years ended December 31, 2016 , 2015 and 2014 consists of the following: Year Ended December 31, 2016 2015 2014 (In Thousands) Current: Federal $ 2,839 $ 5,881 $ 4,235 State 425 1,338 1,459 Current tax expense 3,264 7,219 5,694 Deferred: Federal (1,000 ) 1,036 1,299 State (108 ) 122 90 Deferred tax (benefit) expense (1,108 ) 1,158 1,389 Total income tax expense $ 2,156 $ 8,377 $ 7,083
Schedule of Deferred Tax Assets and Liabilities	The significant components of the Corporation’s deferred tax assets and liabilities were as follows: December 31, 2016 December 31, 2015 (In Thousands) Deferred tax assets: Allowance for loan and lease losses $ 8,177 $ 6,422 SBA recourse reserve 720 — Excess book basis over tax basis for net assets acquired 336 697 Deferred compensation 951 1,305 State net operating loss carryforwards 548 666 Non-accrual loan interest 815 813 Capital loss carryforwards 32 33 Unrealized losses on securities 349 50 Other 394 342 Total deferred tax assets before valuation allowance 12,322 10,328 Valuation allowance — (68 ) Total deferred tax assets 12,322 10,260 Deferred tax liabilities: Leasing and fixed asset activities 7,389 6,878 Loan servicing asset 780 612 Other 101 137 Total deferred tax liabilities 8,270 7,627 Net deferred tax asset $ 4,052 $ 2,633
Schedule of Reconciliation of the Change in Net Deferred Tax Assets to Deferred Tax Expense	A reconciliation of the change in net deferred tax assets to deferred tax expense as of December 31, 2016, 2015 and 2014 was as follows: December 31, 2016 December 31, 2015 December 31, 2014 (In Thousands) Change in net deferred tax assets $ 1,419 $ (970 ) $ (119 ) Deferred taxes allocated to other comprehensive income (311 ) (188 ) 352 Acquired deferred tax assets — — (1,622 ) Deferred income tax benefit (expense) $ 1,108 $ (1,158 ) $ (1,389 )
Schedule of Effective Income Tax Rate Reconciliation	he provision for income taxes differs from that computed at the federal statutory corporate tax rate as follows: Year Ended December 31, 2016 2015 2014 (Dollars in Thousands) Income before income tax expense $ 17,065 $ 24,891 $ 21,222 Tax expense at statutory federal rate of 35%, 34.42% and 34% applied to income before income tax expense, respectively $ 5,973 $ 8,568 $ 7,305 State income tax, net of federal effect 206 968 1,000 Tax-exempt security and loan income, net of TEFRA adjustments (1,114 ) (879 ) (736 ) Bank-owned life insurance (341 ) (330 ) (296 ) Non-deductible transaction costs — — 124 Tax credits, net (2,696 ) (246 ) (375 ) Other 128 296 61 Total income tax expense $ 2,156 $ 8,377 $ 7,083 Effective tax rate 12.63 % 33.65 % 33.38 %

Derivative Financial Instrume47

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Location and Fair Value of the Company's Derivative Financial Instruments	The table below provides information about the location and fair value of the Corporation’s derivative instruments as of December 31, 2016 and 2015 . Interest Rate Swap Contracts Asset Derivatives Liability Derivatives Balance Sheet Location Fair Value Balance Sheet Location Fair Value (In Thousands) Derivatives not designated as hedging instruments December 31, 2016 Accrued interest receivable and other assets $ 352 Accrued interest payable and other liabilities $ 352 December 31, 2015 Accrued interest receivable and other assets $ 552 Accrued interest payable and other liabilities $ 552

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Summary of SBA Recourse Reserve [Table Text Block]	The summary of the activity in the SBA recourse reserve for the year ended December 31, 2016 is as follows: At December 31, 2016 (In Thousands) Balance at the beginning of the period $ — SBA recourse provision 2,068 Charge-offs, net (318 ) Balance at the end of the period $ 1,750
Lending Related And Other Commitments	Financial instruments whose contract amounts represent potential credit risk at December 31, 2016 and 2015 , respectively, are as follows: At December 31, 2016 2015 (In Thousands) Commitments to extend credit, primarily commercial loans $ 539,146 $ 512,627 Standby letters of credit 11,771 18,622

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements, Recurring Basis	Assets and liabilities measured at fair value on a recurring basis, segregated by fair value hierarchy level, are summarized below: December 31, 2016 Fair Value Measurements Using Level 1 Level 2 Level 3 Total (In Thousands) Assets: Securities available-for-sale: U.S. Government agency obligations - government-sponsored enterprises $ — $ 6,295 $ — $ 6,295 Municipal obligations — 8,156 — 8,156 Asset backed securities — 1,081 — 1,081 Collateralized mortgage obligations - government issued — 31,213 — 31,213 Collateralized mortgage obligations - government-sponsored enterprises — 99,148 — 99,148 Interest rate swaps — 352 — 352 Liabilities: Interest rate swaps — 352 — 352 December 31, 2015 Fair Value Measurements Using Level 1 Level 2 Level 3 Total (In Thousands) Assets: Securities available-for-sale: U.S. Government agency obligations - government-sponsored enterprises $ — $ 8,017 $ — $ 8,017 Municipal obligations — 4,283 — 4,283 Asset backed securities — 1,269 — 1,269 Collateralized mortgage obligations - government issued — 44,543 — 44,543 Collateralized mortgage obligations - government-sponsored enterprises — 82,436 — 82,436 Interest rate swaps — 552 — 552 Liabilities: Interest rate swaps — 552 — 552
Fair Value Measurements, Nonrecurring Basis	Assets and liabilities measured at fair value on a non-recurring basis, segregated by fair value hierarchy, are summarized below: December 31, 2016 Fair Value Measurements Using Level 1 Level 2 Level 3 Total (In Thousands) Impaired loans $ — $ 12,268 $ 1,097 $ 13,365 Foreclosed properties — 1,473 — 1,473 Loan servicing rights — — 1,906 1,906 December 31, 2015 Fair Value Measurements Using Level 1 Level 2 Level 3 Total (In Thousands) Impaired loans $ — $ 11,518 $ 6,245 $ 17,763 Foreclosed properties — 1,677 — 1,677 Loan servicing rights — — 1,563 1,563
Fair Value, by Balance Sheet Grouping	The Corporation is required to disclose estimated fair values for its financial instruments. Fair value estimates, methods and assumptions, consistent with exit price concepts for fair value measurements, are set forth below: December 31, 2016 Carrying Fair Value Total Level 1 Level 2 Level 3 (In Thousands) Financial assets: Cash and cash equivalents $ 77,517 $ 77,517 $ 55,622 $ 21,895 $ — Securities available-for-sale 145,893 145,893 — 145,893 — Securities held-to-maturity 38,612 38,520 — 38,520 — Loans held for sale 1,111 1,111 — 1,111 — Loans and lease receivables, net 1,429,763 1,447,044 — 12,268 1,434,776 Bank-owned life insurance 39,048 39,048 — 39,048 — Federal Home Loan Bank and Federal Reserve Bank stock 2,131 2,131 — 2,131 — Accrued interest receivable 4,677 4,677 4,677 — — Interest rate swaps 352 352 — 352 — Financial liabilities: Deposits 1,538,855 1,539,413 $ 1,063,720 475,693 — Federal Home Loan Bank advances and other borrowings 59,676 60,893 — 60,893 — Junior subordinated notes 10,004 9,072 — — 9,072 Accrued interest payable 1,765 1,765 1,765 — — Interest rate swaps 352 352 — 352 — Off balance sheet items: Standby letters of credit 58 58 — — 58 December 31, 2015 Carrying Fair Value Total Level 1 Level 2 Level 3 (In Thousands) Financial assets: Cash and cash equivalents $ 113,564 $ 113,564 $ 100,063 $ 13,501 $ — Securities available-for-sale 140,548 140,548 — 140,548 — Securities held-to-maturity 37,282 37,558 — 37,558 — Loans held for sale 2,702 2,702 — 2,702 — Loans and lease receivables, net 1,414,649 1,445,773 — 11,518 1,434,255 Bank-owned life insurance 28,298 28,298 — 28,298 — Federal Home Loan Bank and Federal Reserve Bank stock 2,843 2,843 — 2,843 — Accrued interest receivable 4,412 4,412 4,412 — — Interest rate swaps 552 552 — 552 — Financial liabilities: Deposits 1,577,231 1,577,838 1,009,762 $ 568,076 — Federal Home Loan Bank advances and other borrowings 34,740 35,353 — 35,353 — Junior subordinated notes 9,990 6,614 — — 6,614 Accrued interest payable 1,766 1,766 1,766 — — Interest rate swaps 552 552 — 552 — Off balance sheet items: Standby letters of credit 183 183 — — 183

Condensed Parent Only Financi50

Condensed Parent Only Financial Information (Tables)	12 Months Ended
	Dec. 31, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Balance Sheet	Condensed Balance Sheets As of December 31, 2016 2015 (In Thousands) Assets Cash and due from banks $ 127 $ 1,099 Investments in subsidiaries, at equity 196,221 187,530 Leasehold improvements and equipment, net 1,605 1,519 Other assets 4,738 2,849 Total assets $ 202,691 $ 192,997 Liabilities and Stockholders’ Equity Borrowed funds $ 33,512 $ 35,751 Other liabilities 7,529 6,414 Total liabilities 41,041 42,165 Stockholders’ equity 161,650 150,832 Total liabilities and stockholders’ equity $ 202,691 $ 192,997
Condensed Income Statement	Condensed Statements of Income For the Year Ended December 31, 2016 2015 2014 (In Thousands) Net interest expense 2,799 2,777 2,071 Non-interest income Consulting and rental income from consolidated subsidiaries 16,036 13,398 10,776 Other 33 35 34 Total non-interest income 16,069 13,433 10,810 Non-interest expense 19,250 16,854 13,444 Loss before income tax benefit and equity in undistributed net income of consolidated subsidiaries 5,980 6,198 4,705 Income tax benefit 2,170 2,527 1,659 Loss before equity in undistributed net income of consolidated subsidiaries 3,810 3,671 3,046 Equity in undistributed net income of consolidated subsidiaries 18,719 20,185 17,185 Net income $ 14,909 $ 16,514 $ 14,139
Condensed Cash Flow Statement	Condensed Statements of Cash Flows For the Year Ended December 31, 2016 2015 2014 (In Thousands) Operating activities Net income $ 14,909 $ 16,514 $ 14,139 Adjustments to reconcile net income to net cash used in operating activities: Equity in undistributed earnings of consolidated subsidiaries (18,719 ) (20,185 ) (17,185 ) Share-based compensation 994 448 416 Excess tax benefit from share-based compensation (83 ) — — Increase in other liabilities 1,198 2,390 1,002 Other, net (3,162 ) (481 ) (1,147 ) Net cash used in operating activities (4,863 ) (1,314 ) (2,775 ) Investing activities Dividends received from subsidiaries 13,534 7,034 8,000 Capital contributions to subsidiaries (3,500 ) (3,000 ) (32,980 ) Net cash provided by (used in) investing activities 10,034 4,034 (24,980 ) Financing activities Net (decrease) increase in short-term borrowed funds (1,500 ) 1,500 1,000 Proceeds from issuance of long-term debt, net of issuance costs — — 14,469 Repayment of long-term debt — — (4,000 ) Proceeds from issuance of common stock — — 16,560 Proceeds from exercise of stock options — 300 936 Purchase of treasury stock (467 ) (946 ) (1,795 ) Excess tax benefit from share-based compensation — 162 305 Cash dividends paid (4,176 ) (3,816 ) (3,396 ) Net cash (used in) provided by financing activities (6,143 ) (2,800 ) 24,079 Decrease in cash and cash equivalents (972 ) (80 ) (3,676 ) Cash and due from banks at the beginning of the period 1,099 1,179 4,855 Cash and due from banks at the end of the period $ 127 $ 1,099 $ 1,179

Condensed Quarterly Earnings (T

Condensed Quarterly Earnings (Tables)	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	2016 2015 Fourth Third Quarter Second Quarter First Quarter Fourth Quarter Third Quarter Second Quarter First Quarter (Dollars in Thousands, Except Share Data) Interest income $ 20,321 $ 18,898 $ 19,555 $ 19,343 $ 18,600 $ 18,135 $ 17,520 $ 18,216 Interest expense 3,568 3,603 3,814 3,804 3,688 3,525 3,332 3,286 Net interest income 16,753 15,295 15,741 15,539 14,912 14,610 14,188 14,930 Provision for loan and lease losses 994 3,537 2,762 525 1,895 287 520 684 Non-interest income 3,931 3,640 5,823 4,594 4,935 4,102 4,126 3,848 Non-interest expense 14,523 15,753 13,458 12,699 11,684 11,984 11,974 11,732 Income (loss) before income tax expense 5,167 (355 ) 5,344 6,909 6,268 6,441 5,820 6,362 Income tax expense (benefit) (1) 1,199 (3,020 ) 1,621 2,356 2,185 2,060 1,962 2,170 Net income (1) $ 3,968 $ 2,665 $ 3,723 $ 4,553 $ 4,083 $ 4,381 $ 3,858 $ 4,192 Per common share (2) : Basic earnings (1) $ 0.46 $ 0.31 $ 0.43 $ 0.52 $ 0.47 $ 0.50 $ 0.45 $ 0.48 Diluted earnings (1) 0.46 0.31 0.43 0.52 0.47 0.50 0.45 0.48 Dividends declared 0.12 0.12 0.12 0.12 0.11 0.11 0.11 0.11 (1) Results for the third quarter, second quarter and first quarter 2016 have been adjusted to reflect early adoption of ASU 2016-09, “Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.” See Note 1 for additional details related to the adjustments. (2) All per share amounts have been adjusted to reflect the 2-for-1 stock split in the form of a 100% stock dividend completed in August 2015.

Nature of Operations and Summ52

Nature of Operations and Summary of Significant Accounting Policies Direct Financing Leases (Details)	12 Months Ended
	Dec. 31, 2016
Minimum
Unguaranteed Residual Percentage Of Cost [Line Items]
Unguaranteed residual percent of cost	3.00%
Maximum
Unguaranteed Residual Percentage Of Cost [Line Items]
Unguaranteed residual percent of cost	20.00%

Nature of Operations and Summ53

Nature of Operations and Summary of Significant Accounting Policies Leasehold Improvements and Equipment (Details)	12 Months Ended
	Dec. 31, 2016
Minimum
Property, Plant and Equipment [Line Items]
Equipment, useful life	3 years
Maximum
Property, Plant and Equipment [Line Items]
Equipment, useful life	10 years

Nature of Operations and Summ54

Nature of Operations and Summary of Significant Accounting Policies Federal Home Loan Bank Stock (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Investment Holdings [Line Items]
Investment in Federal Home Loan Bank and Federal Reserve Bank stock, at cost	$ 1,100	$ 1,800
Federal Reserve Bank Stock	1,100	1,100
FHLB Stock
Investment Holdings [Line Items]
Other than temporary impairment losses, investments	$ 0	$ 0

Nature of Operations and Summ55

Nature of Operations and Summary of Significant Accounting Policies Other Investments (Details)	12 Months Ended
	Dec. 31, 2016
Investment In Limited Partnerships Accounting Treatment [Line Items]
Maximum ownership percentage that is not consolidated	50.00%
Investment in corporations minimum ownership percentage for accounting for using the equity method	20.00%
Investment in corporations maximum ownership percentage for accounting for at cost	20.00%
Investment in limited partnerships maximum ownership percentage for accounting for at cost	3.00%
Minimum
Investment In Limited Partnerships Accounting Treatment [Line Items]
Investment in limited partnerships ownership percentage for accounting for using the equity method	3.00%
Maximum
Investment In Limited Partnerships Accounting Treatment [Line Items]
Investment in limited partnerships ownership percentage for accounting for using the equity method	50.00%

Nature of Operations and Summ56

Nature of Operations and Summary of Significant Accounting Policies Other Comprehensive Income (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)
Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other than temporary impairment losses, investments, portion recognized in earnings, net	$ 0

Nature of Operations and Summ57

Nature of Operations and Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Federal Reserve Bank Stock	$ 1,100	$ 1,100
Federal Home Loan Bank Stock	1,800	1,100
Loans Receivable Held-for-sale, Amount	2,702	1,111
Trading securities	0	0
Bank owned life insurance death benefits	67,100	97,300
Borrowings against cash surrender value of bank owned life insurance	0	$ 0
Stock-based compensation related to stock options recognized in consolidated financial statements	$ 0

Nature of Operations and Summ58

Nature of Operations and Summary of Significant Accounting Policies Adoption of ASU No. 2016-09 (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Summary of ASU No. 2016-09 Adoption [Line Items]
Income Tax Expense (Benefit)	$ (1,199)	$ 3,020	$ (1,621)	$ (2,356)	$ (2,185)	$ (2,060)	$ (1,962)	$ (2,170)	$ 2,156	$ 8,377	$ 7,083
Net income	$ 3,968	$ 2,665	$ 3,723	$ 4,553	$ 4,083	$ 4,381	$ 3,858	$ 4,192	$ 14,909	$ 16,514	$ 14,139
Effective Income Tax Rate Reconciliation, Percent									12.63%	33.65%	33.38%
Basic earnings per common share	$ 0.46	$ 0.31	$ 0.43	$ 0.52	$ 0.47	$ 0.50	$ 0.45	$ 0.48	$ 1.71	$ 1.90	$ 1.76
Diluted earnings per common share	$ 0.46	$ 0.31	$ 0.43	$ 0.52	$ 0.47	$ 0.50	$ 0.45	$ 0.48	$ 1.71	$ 1.90	$ 1.75
Additional Paid in Capital, Common Stock	$ 77,542				$ 76,549				$ 77,542	$ 76,549
Retained Earnings (Accumulated Deficit)	$ 91,317				$ 80,584				$ 91,317	$ 80,584
As Reported
Summary of ASU No. 2016-09 Adoption [Line Items]
Income Tax Expense (Benefit)		$ (2,895)	$ 1,628	$ 2,362
Net income		$ 2,540	$ 3,716	$ 4,547
Effective Income Tax Rate Reconciliation, Percent			30.50%	34.20%
Basic earnings per common share		$ 290	$ 430	$ 520
Diluted earnings per common share		$ 290	$ 430	$ 520
Additional Paid in Capital, Common Stock		$ 77,544	$ 77,127	$ 76,851
Retained Earnings (Accumulated Deficit)		$ 88,255	$ 86,760	$ 84,089
Ratio of Annualized Net Income to Average Assets		0.56%	0.81%	1.00%
Ratio of Annualized Net Income to Average Equity		6.38%	9.43%	11.68%
As Adjusted
Summary of ASU No. 2016-09 Adoption [Line Items]
Income Tax Expense (Benefit)		$ (3,020)	$ 1,621	$ 2,356
Net income		$ 2,665	$ 3,723	$ 4,553
Effective Income Tax Rate Reconciliation, Percent			30.30%	34.10%
Basic earnings per common share		$ 310	$ 430	$ 520
Diluted earnings per common share		$ 310	$ 430	$ 520
Additional Paid in Capital, Common Stock		$ 77,419	$ 77,120	$ 76,845
Retained Earnings (Accumulated Deficit)		$ 88,380	$ 86,767	$ 84,095
Ratio of Annualized Net Income to Average Assets		0.59%	0.82%	1.00%
Ratio of Annualized Net Income to Average Equity		6.69%	9.45%	11.70%

Cash and Cash Equivalents (Narr

Cash and Cash Equivalents (Narrative Disclosures) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Cash and Cash Equivalents [Abstract]
Cash and due from banks	$ 14,596	$ 14,640
Required reserves in the form of either vault cash or deposits held at the Federal Reserve Bank	6,400	3,888
Federal Reserve Bank balances	40,900	84,900
Short-term investments	$ 62,921	$ 98,924

Securities (Available-for-Sale

Securities (Available-for-Sale Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities
Amortized cost	$ 146,461	$ 140,204
Gross unrealized gains	684	973
Gross unrealized losses	(1,252)	(629)
Fair value	145,893	140,548
U.S. Government agency obligations - government-sponsored enterprises
Schedule of Available-for-sale Securities
Amortized cost	6,298	8,047
Gross unrealized gains	7	2
Gross unrealized losses	(10)	(32)
Fair value	6,295	8,017
Municipal obligations
Schedule of Available-for-sale Securities
Amortized cost	8,246	4,278
Gross unrealized gains	2	12
Gross unrealized losses	(92)	(7)
Fair value	8,156	4,283
Asset-backed securities
Schedule of Available-for-sale Securities
Amortized cost	1,116	1,327
Gross unrealized gains	0	0
Gross unrealized losses	(35)	(58)
Fair value	1,081	1,269
Collateralized mortgage obligations - government issued
Schedule of Available-for-sale Securities
Amortized cost	30,936	43,845
Gross unrealized gains	423	814
Gross unrealized losses	(146)	(116)
Fair value	31,213	44,543
Collateralized mortgage obligations - government-sponsored enterprises
Schedule of Available-for-sale Securities
Amortized cost	99,865	82,707
Gross unrealized gains	252	145
Gross unrealized losses	(969)	(416)
Fair value	$ 99,148	$ 82,436

Securities Securities (Held-to-

Securities Securities (Held-to-Maturity Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 38,612	$ 37,282
Gross unrealized gains	87	377
Gross unrealized losses	(179)	(101)
Fair value	38,520	37,558
U.S. Government agency obligations - government-sponsored enterprises
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	1,497	1,495
Gross unrealized gains	2	1
Gross unrealized losses	(5)	(11)
Fair value	1,494	1,485
Municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	21,173	16,038
Gross unrealized gains	62	332
Gross unrealized losses	(78)	(5)
Fair value	21,157	16,365
Collateralized mortgage obligations - government issued
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	9,148	11,718
Gross unrealized gains	17	32
Gross unrealized losses	(38)	(41)
Fair value	9,127	11,709
Collateralized mortgage obligations - government-sponsored enterprises
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	6,794	8,031
Gross unrealized gains	6	12
Gross unrealized losses	(58)	(44)
Fair value	$ 6,742	$ 7,999

Securities (Contractual Maturit

Securities (Contractual Maturity) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Amortized Cost Available for Sale
Due in one year or less	$ 4,532
Due in one year through five years	15,308
Due in five through ten years	66,396
Due in over ten years	60,225
Amortized cost	146,461	$ 140,204
Estimated Fair Value Available for Sale
Due in one year or less	4,532
Due in one year through five years	15,245
Due in five through ten years	66,710
Due in over ten years	59,406
Fair value	145,893	140,548
Amortized Cost Held to Maturity
Due in one year or less	0
Due in one year through five years	7,111
Due in five through ten years	13,994
Due in over ten years	17,507
Amortized cost	38,612	37,282
Estimated Fair Value Held to Maturity
Due in one year or less	0
Due in one year through five years	7,100
Due in five through ten years	13,978
Due in over ten years	17,442
Fair value	$ 38,520	$ 37,558

Securities (Unrealized Losses A

Securities (Unrealized Losses Available-for-Sale) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair value
Less than 12 months	$ 74,593	$ 70,573
12 months or longer	3,799	9,385
Total	78,392	79,958
Unrealized losses
Less than 12 months	1,160	470
12 months or longer	92	159
Total	1,252	629
U.S. Government agency obligations - government-sponsored enterprises
Fair value
Less than 12 months	1,991	3,536
12 months or longer	0	1,981
Total	1,991	5,517
Unrealized losses
Less than 12 months	10	13
12 months or longer	0	19
Total	10	32
Municipal obligations
Fair value
Less than 12 months	7,207	2,403
12 months or longer	406	0
Total	7,613	2,403
Unrealized losses
Less than 12 months	89	7
12 months or longer	3	0
Total	92	7
Asset-backed securities
Fair value
Less than 12 months	0	1,269
12 months or longer	1,081	0
Total	1,081	1,269
Unrealized losses
Less than 12 months	0	58
12 months or longer	35	0
Total	35	58
Collateralized mortgage obligations - government issued
Fair value
Less than 12 months	10,552	3,373
12 months or longer	493	5,687
Total	11,045	9,060
Unrealized losses
Less than 12 months	130	19
12 months or longer	16	97
Total	146	116
Collateralized mortgage obligations - government-sponsored enterprises
Fair value
Less than 12 months	54,843	59,992
12 months or longer	1,819	1,717
Total	56,662	61,709
Unrealized losses
Less than 12 months	931	373
12 months or longer	38	43
Total	$ 969	$ 416

Securities Securities (Unrealiz

Securities Securities (Unrealized Losses Held-to-Maturity) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair value
Less than 12 months	$ 22,134	$ 12,122
12 months or longer	0	1,199
Total	22,134	13,321
Unrealized losses
Less than 12 months	179	89
12 months or longer	0	12
Total	179	101
U.S. Government agency obligations - government-sponsored enterprises
Fair value
Less than 12 months	1,000	0
12 months or longer	0	1,000
Total	1,000	1,000
Unrealized losses
Less than 12 months	5	0
12 months or longer	0	11
Total	5	11
Municipal obligations
Fair value
Less than 12 months	9,472	436
12 months or longer	0	199
Total	9,472	635
Unrealized losses
Less than 12 months	78	4
12 months or longer	0	1
Total	78	5
Collateralized mortgage obligations - government issued
Fair value
Less than 12 months	6,980	6,518
12 months or longer	0	0
Total	6,980	6,518
Unrealized losses
Less than 12 months	38	41
12 months or longer	0	0
Total	38	41
Collateralized mortgage obligations - government-sponsored enterprises
Fair value
Less than 12 months	4,682	5,168
12 months or longer	0	0
Total	4,682	5,168
Unrealized losses
Less than 12 months	58	44
12 months or longer	0	0
Total	$ 58	$ 44

Securities (Narrative Disclosur

Securities (Narrative Disclosures) (Details)	12 Months Ended
	Dec. 31, 2016USD ($)securities	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Investments, Debt and Equity Securities [Abstract]
Gain on sale of available-for-sale securities | $	$ 10,000	$ 0	$ 0
Number of available-for-sale securities sold | securities	5
Proceeds from sale of available-for-sale securities | $		0	$ 0
Available-for-sale securities pledged as collateral | $	$ 22,400,000	23,000,000
Available-for-sale securities in unrealized loss positions | securities	108
Available-for-sale securities in an unrealized loss position, twelve months or greater | securities	7
Other than temporary impairment on available-for-sale securities | $	$ 0	0
Held-to-maturity securities in unrealized loss positions | securities	57
Held-to-maturity securities in an unrealized loss position, twelve months or greater | securities	0
Other than temporary impairment on held-to-maturity securities | $	$ 0	$ 0

Loan and Lease Receivables, I66

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Loan Composition) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Commercial real estate — owner occupied	$ 176,459	$ 176,322
Commercial real estate — non-owner occupied	473,158	436,901
Land development	56,638	59,779
Construction	101,206	100,625
Multi-family	92,762	80,254
1-4 family	45,651	50,304
Total commercial real estate	945,874	904,185
Commercial and industrial	450,298	472,193
Direct financing leases, net	30,951	31,093
Home equity and second mortgages	8,412	8,237
Other	16,329	16,319
Total consumer and other	24,741	24,556
Total gross loans and leases receivable	1,451,864	1,432,027
Allowance for loan and lease losses	20,912	16,316
Deferred loan fees	1,189	1,062
Loans and Leases Receivable and Loans Held for Sale, net	$ 1,429,763	$ 1,414,649

Loan and Lease Receivables, I67

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Fair Value of Credit Impaired Loans Acquired) (Details) - Purchased Credit Impaired Loans [Member] - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule Credit Impaired Loans Acquired [Line Items]
Contractually Required Payments	$ 3,265	$ 5,291
Fair value of credit impaired loans acquired	$ 1,432	$ 3,250

Loan and Lease Receivables, I68

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Accretable Yield) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Beginning balance	$ 414	$ 676
Accretion recognized in interest income	(129)	(50)
Reclassification to nonaccretable difference for loans with changing cash flows	(244)	(60)
Changes in accretable yield for non-credit related changes in expected cash flows	94	(152)
Ending balance	$ 135	$ 414

Loan and Lease Receivables, I69

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Loans by Credit Quality Indicator) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Commercial real estate — owner occupied	$ 176,459	$ 176,322
Commercial real estate — non-owner occupied	473,158	436,901
Land development	56,638	59,779
Construction	101,206	100,625
Multi-family	92,762	80,254
1-4 family	45,651	50,304
Total commercial real estate	945,874	904,185
Commercial and industrial	450,298	472,193
Direct financing leases, net	30,951	31,093
Home equity and second mortgages	8,412	8,237
Other	16,329	16,319
Total consumer and other	24,741	24,556
Total gross loans and leases receivable	$ 1,451,864	$ 1,432,027
Category as a % of total portfolio	100.00%	100.00%
Category I
Financing Receivable, Recorded Investment [Line Items]
Commercial real estate — owner occupied	$ 142,704	$ 156,379
Commercial real estate — non-owner occupied	447,895	410,517
Land development	52,082	52,817
Construction	93,510	98,693
Multi-family	87,418	79,368
1-4 family	38,504	41,086
Total commercial real estate	862,113	838,860
Commercial and industrial	348,201	430,199
Direct financing leases, net	29,351	29,514
Home equity and second mortgages	8,271	7,497
Other	15,714	15,616
Total consumer and other	23,985	23,113
Total gross loans and leases receivable	$ 1,263,650	$ 1,321,686
Category as a % of total portfolio	87.04%	92.29%
Category II
Financing Receivable, Recorded Investment [Line Items]
Commercial real estate — owner occupied	$ 20,294	$ 7,654
Commercial real estate — non-owner occupied	20,933	20,662
Land development	823	2,241
Construction	3,154	851
Multi-family	1,937	884
1-4 family	3,144	3,985
Total commercial real estate	50,285	36,277
Commercial and industrial	42,949	7,139
Direct financing leases, net	1,600	1,013
Home equity and second mortgages	121	0
Other	0	48
Total consumer and other	121	48
Total gross loans and leases receivable	$ 94,955	$ 44,477
Category as a % of total portfolio	6.54%	3.11%
Category III
Financing Receivable, Recorded Investment [Line Items]
Commercial real estate — owner occupied	$ 11,174	$ 9,311
Commercial real estate — non-owner occupied	2,721	3,408
Land development	293	309
Construction	1,624	564
Multi-family	3,407	0
1-4 family	1,431	1,865
Total commercial real estate	20,650	15,457
Commercial and industrial	46,675	25,706
Direct financing leases, net	0	528
Home equity and second mortgages	12	141
Other	11	0
Total consumer and other	23	141
Total gross loans and leases receivable	$ 67,348	$ 41,832
Category as a % of total portfolio	4.64%	2.92%
Category IV
Financing Receivable, Recorded Investment [Line Items]
Commercial real estate — owner occupied	$ 2,287	$ 2,978
Commercial real estate — non-owner occupied	1,609	2,314
Land development	3,440	4,412
Construction	2,918	517
Multi-family	0	2
1-4 family	2,572	3,368
Total commercial real estate	12,826	13,591
Commercial and industrial	12,473	9,149
Direct financing leases, net	0	38
Home equity and second mortgages	8	599
Other	604	655
Total consumer and other	612	1,254
Total gross loans and leases receivable	$ 25,911	$ 24,032
Category as a % of total portfolio	1.78%	1.68%

Loan and Lease Receivables, I70

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Past Due Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	$ 16,756	$ 5,853
Current	1,435,108	1,426,174
Non-accruing loans and leases	25,194	22,298
Total gross loans and leases receivable	$ 1,451,864	$ 1,432,027
30 to 59 days past due, percent of total portfolio	0.42%	0.21%
60 to 89 days past due, percent of total portfolio	0.04%	0.04%
Greater than 90 days past due, percent of portfolio	0.69%	0.16%
Past due, percent of total portfolio	1.15%	0.41%
Current, percent of total portfolio	98.85%	99.59%
Gross loans, percent of total portfolio	100.00%	100.00%
Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	$ 1,183	$ 473
Current	175,276	175,849
Non-accruing loans and leases	2,223	2,907
Total gross loans and leases receivable	176,459	176,322
Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	473,158	436,901
Non-accruing loans and leases	1,609	1,678
Total gross loans and leases receivable	473,158	436,901
Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	56,638	59,779
Non-accruing loans and leases	3,440	4,393
Total gross loans and leases receivable	56,638	59,779
Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	2,918	397
Current	98,288	100,228
Non-accruing loans and leases	2,918	397
Total gross loans and leases receivable	101,206	100,625
Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	92,762	80,254
Non-accruing loans and leases	0	2
Total gross loans and leases receivable	92,762	80,254
1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,315	1,437
Current	44,336	48,867
Non-accruing loans and leases	1,937	2,550
Total gross loans and leases receivable	45,651	50,304
Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	10,776	2,641
Current	439,522	469,552
Non-accruing loans and leases	12,463	9,136
Total gross loans and leases receivable	450,298	472,193
Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	30,951	31,093
Non-accruing loans and leases	0	38
Total gross loans and leases receivable	30,951	31,093
Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	250
Current	8,412	7,987
Non-accruing loans and leases	0	542
Total gross loans and leases receivable	8,412	8,237
Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	564	655
Current	15,765	15,664
Non-accruing loans and leases	604	655
Total gross loans and leases receivable	16,329	16,319
Accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	598	78
Current	1,426,072	1,409,651
Accruing loans and leases	1,426,670	1,409,729
Accruing loans and leases | Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	174,236	173,416
Accruing loans and leases	174,236	173,416
Accruing loans and leases | Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	471,549	435,222
Accruing loans and leases	471,549	435,222
Accruing loans and leases | Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	53,198	55,386
Accruing loans and leases	53,198	55,386
Accruing loans and leases | Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	98,288	100,228
Accruing loans and leases	98,288	100,228
Accruing loans and leases | Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	92,762	80,252
Accruing loans and leases	92,762	80,252
Accruing loans and leases | 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	75	78
Current	43,639	47,676
Accruing loans and leases	43,714	47,754
Accruing loans and leases | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	523	0
Current	437,312	463,057
Accruing loans and leases	437,835	463,057
Accruing loans and leases | Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	30,951	31,055
Accruing loans and leases	30,951	31,055
Accruing loans and leases | Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	8,412	7,695
Accruing loans and leases	8,412	7,695
Accruing loans and leases | Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	15,725	15,664
Accruing loans and leases	15,725	15,664
Non-accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	16,158	5,775
Current	9,036	16,523
Non-accruing loans and leases	25,194	22,298
Non-accruing loans and leases | Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,183	473
Current	1,040	2,433
Non-accruing loans and leases	2,223	2,906
Non-accruing loans and leases | Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	1,609	1,679
Non-accruing loans and leases	1,609	1,679
Non-accruing loans and leases | Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	3,440	4,393
Non-accruing loans and leases	3,440	4,393
Non-accruing loans and leases | Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	2,918	397
Current	0	0
Non-accruing loans and leases	2,918	397
Non-accruing loans and leases | Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	0	2
Non-accruing loans and leases	0	2
Non-accruing loans and leases | 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,240	1,359
Current	697	1,191
Non-accruing loans and leases	1,937	2,550
Non-accruing loans and leases | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	10,253	2,641
Current	2,210	6,495
Non-accruing loans and leases	12,463	9,136
Non-accruing loans and leases | Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	0	38
Non-accruing loans and leases	0	38
Non-accruing loans and leases | Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	250
Current	0	292
Non-accruing loans and leases	0	542
Non-accruing loans and leases | Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	564	655
Current	40	0
Non-accruing loans and leases	604	655
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	6,143	2,982
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	2,482	397
Financing Receivables, 30 to 59 Days Past Due [Member] | Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	75	508
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	3,400	2,077
Financing Receivables, 30 to 59 Days Past Due [Member] | Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	186	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	130	78
Financing Receivables, 30 to 59 Days Past Due [Member] | Accruing loans and leases | Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Accruing loans and leases | Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Accruing loans and leases | Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Accruing loans and leases | Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Accruing loans and leases | Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Accruing loans and leases | 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	75	78
Financing Receivables, 30 to 59 Days Past Due [Member] | Accruing loans and leases | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	55	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Accruing loans and leases | Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Accruing loans and leases | Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Accruing loans and leases | Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	6,013	2,904
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-accruing loans and leases | Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-accruing loans and leases | Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-accruing loans and leases | Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-accruing loans and leases | Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	2,482	397
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-accruing loans and leases | Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-accruing loans and leases | 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	430
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-accruing loans and leases | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	3,345	2,077
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-accruing loans and leases | Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-accruing loans and leases | Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-accruing loans and leases | Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	186	0
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	636	507
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	473
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	34
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	636	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	468	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Accruing loans and leases | Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Accruing loans and leases | Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Accruing loans and leases | Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Accruing loans and leases | Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Accruing loans and leases | Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Accruing loans and leases | 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Accruing loans and leases | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	468	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Accruing loans and leases | Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Accruing loans and leases | Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Accruing loans and leases | Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	168	507
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-accruing loans and leases | Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	473
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-accruing loans and leases | Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-accruing loans and leases | Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-accruing loans and leases | Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-accruing loans and leases | Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-accruing loans and leases | 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	34
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-accruing loans and leases | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	168	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-accruing loans and leases | Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-accruing loans and leases | Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-accruing loans and leases | Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	9,977	2,364
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,183	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	436	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,240	895
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	6,740	564
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	250
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	378	655
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Accruing loans and leases | Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Accruing loans and leases | Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Accruing loans and leases | Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Accruing loans and leases | Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Accruing loans and leases | Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Accruing loans and leases | 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Accruing loans and leases | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Accruing loans and leases | Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Accruing loans and leases | Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Accruing loans and leases | Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	9,977	2,364
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-accruing loans and leases | Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,183	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-accruing loans and leases | Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-accruing loans and leases | Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-accruing loans and leases | Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	436	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-accruing loans and leases | Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-accruing loans and leases | 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,240	895
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-accruing loans and leases | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	6,740	564
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-accruing loans and leases | Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-accruing loans and leases | Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	250
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-accruing loans and leases | Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	$ 378	$ 655

Loan and Lease Receivables, I71

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Non-accrual Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	$ 25,194	$ 22,298
Foreclosed properties, net	1,472	1,677
Total non-performing assets	26,666	23,975
Performing troubled debt restructurings	717	1,735	$ 2,003
Total impaired assets	$ 27,383	$ 25,710
Total non-accrual loans and leases to gross loans and leases	1.74%	1.56%
Total non-performing assets to total gross loans and leases plus foreclosed properties, net	1.83%	1.67%
Total non-performing assets to total assets	1.50%	1.35%
Allowance for loan and lease losses to gross loans and leases	1.44%	1.14%
Allowance for loan and lease losses to non-accrual loans and leases	83.00%	73.17%
Commercial real estate — owner occupied
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	$ 2,223	$ 2,907
Commercial real estate — non-owner occupied
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	1,609	1,678
Land development
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	3,440	4,393
Construction
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	2,918	397
Multi-family
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	0	2
1-4 family
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	1,937	2,550
Total commercial real estate
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	$ 12,127	$ 11,927
Allowance for loan and lease losses to gross loans and leases	1.31%	1.24%
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	$ 12,463	$ 9,136
Direct financing leases, net
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	0	38
Home equity and second mortgages
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	0	542
Other
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	604	655
Total consumer and other loans
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	$ 604	$ 1,197
Allowance for loan and lease losses to gross loans and leases	2.26%	2.89%

Loan and Lease Receivables, I72

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Troubled Debt Restructurings) (Details) $ in Thousands	Dec. 31, 2016USD ($)loans	Dec. 31, 2015USD ($)loans
Troubled debt restructurings:
Number of Loans | loans	30	42
Pre-Modification Recorded Investment	$ 18,897	$ 20,721
Post-Modification Recorded Investment	$ 13,560	$ 17,890
Commercial real estate — owner occupied
Troubled debt restructurings:
Number of Loans | loans	3	3
Pre-Modification Recorded Investment	$ 1,065	$ 1,209
Post-Modification Recorded Investment	$ 930	$ 1,188
Commercial real estate — non-owner occupied
Troubled debt restructurings:
Number of Loans | loans	1	5
Pre-Modification Recorded Investment	$ 158	$ 1,150
Post-Modification Recorded Investment	$ 39	$ 904
Land development
Troubled debt restructurings:
Number of Loans | loans	1	2
Pre-Modification Recorded Investment	$ 5,745	$ 5,853
Post-Modification Recorded Investment	$ 3,440	$ 4,393
Construction
Troubled debt restructurings:
Number of Loans | loans	2	1
Pre-Modification Recorded Investment	$ 331	$ 181
Post-Modification Recorded Investment	$ 314	$ 200
Multi-family
Troubled debt restructurings:
Number of Loans | loans	0	1
Pre-Modification Recorded Investment	$ 0	$ 184
Post-Modification Recorded Investment	$ 0	$ 2
1-4 family
Troubled debt restructurings:
Number of Loans | loans	11	15
Pre-Modification Recorded Investment	$ 1,391	$ 2,035
Post-Modification Recorded Investment	$ 1,393	$ 1,869
Commercial and industrial
Troubled debt restructurings:
Number of Loans | loans	10	10
Pre-Modification Recorded Investment	$ 8,094	$ 7,572
Post-Modification Recorded Investment	$ 7,058	$ 8,330
Home equity and second mortgages
Troubled debt restructurings:
Number of Loans | loans	1	4
Pre-Modification Recorded Investment	$ 37	$ 461
Post-Modification Recorded Investment	$ 8	$ 349
Other
Troubled debt restructurings:
Number of Loans | loans	1	1
Pre-Modification Recorded Investment	$ 2,076	$ 2,076
Post-Modification Recorded Investment	$ 378	$ 655

Loan and Lease Receivables, I73

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Troubled Debt Restructurings by Modification Type) (Details) $ in Thousands	Dec. 31, 2016USD ($)securitiesloans	Dec. 31, 2015USD ($)securitiesloans
Troubled debt restructurings:
Number of Loans | loans	30	42
Post-Modification Recorded Investment	$ 13,560	$ 17,890
Commercial and industrial
Troubled debt restructurings:
Number of Loans | loans	10	10
Post-Modification Recorded Investment	$ 7,058	$ 8,330
Combination of extension of term and interest rate conession | Commercial real estate:
Troubled debt restructurings:
Number of Loans | loans	16	25
Post-Modification Recorded Investment	$ 6,056	$ 8,477
Combination of extension of term and interest rate conession | Commercial and industrial
Troubled debt restructurings:
Number of Loans | loans	10	10
Post-Modification Recorded Investment	$ 7,058	$ 8,330
Combination of extension of term and interest rate conession | Consumer and other:
Troubled debt restructurings:
Number of Loans | loans	1	4
Post-Modification Recorded Investment	$ 8	$ 349
Interest rate concession | Commercial real estate:
Troubled debt restructurings:
Number of Loans | securities	1	1
Post-Modification Recorded Investment	$ 52	$ 55
Extension of term | Commercial real estate:
Troubled debt restructurings:
Number of Loans | loans	1	1
Post-Modification Recorded Investment	$ 8	$ 24
Extension of term | Consumer and other:
Troubled debt restructurings:
Number of Loans | loans	1	1
Post-Modification Recorded Investment	$ 378	$ 655

Loan and Lease Receivables, I74

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Impaired Loans and Leases) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Recorded investment
With no impairment reserve recorded	$ 14,033	$ 15,175	$ 11,270
With impairment reserve recorded	11,878	8,858	525
Total	25,911	24,033	11,795
Unpaid principal balance
With no impairment reserve recorded	17,410	19,026	15,623
With impairment reserve recorded	11,884	8,863	565
Total	29,294	27,889	16,188
Impairment reserve
Impairment reserve	5,599	1,113	290
Average recorded investment
With no impairment reserve recorded	13,599	9,721	13,926
With impairment reserve recorded	9,387	1,722	548
Total	22,986	11,443	14,474
Foregone interest income
With no impairment reserve recorded	902	597	843
With impairment reserve recorded	715	153	27
Total	1,617	750	870
Interest income recognized
With no impairment reserve recorded	614	85	740
With impairment reserve recorded	0	2	0
Total	614	87	740
Net foregone interest income
With no impairment reserve recorded	288	512	103
With impairment reserve recorded	715	151	27
Total	1,003	663	130
Commercial real estate — owner occupied
Recorded investment
With no impairment reserve recorded	1,788	2,164	577
With impairment reserve recorded	499	814	0
Total	2,287	2,978	577
Unpaid principal balance
With no impairment reserve recorded	1,788	2,164	577
With impairment reserve recorded	499	814	0
Total	2,287	2,978	577
Impairment reserve
Impairment reserve	70	20	0
Average recorded investment
With no impairment reserve recorded	3,577	712	484
With impairment reserve recorded	111	215	0
Total	3,688	927	484
Foregone interest income
With no impairment reserve recorded	328	53	30
With impairment reserve recorded	28	7	0
Total	356	60	30
Interest income recognized
With no impairment reserve recorded	118	12	79
With impairment reserve recorded	0	2	0
Total	118	14	79
Net foregone interest income
With no impairment reserve recorded	210	41	(49)
With impairment reserve recorded	28	5	0
Total	238	46	(49)
Commercial real estate — non-owner occupied
Recorded investment
With no impairment reserve recorded	1,609	2,314	921
With impairment reserve recorded	0	0	49
Total	1,609	2,314	970
Unpaid principal balance
With no impairment reserve recorded	1,647	2,355	921
With impairment reserve recorded	0	0	89
Total	1,647	2,355	1,010
Impairment reserve
Impairment reserve	0	0	49
Average recorded investment
With no impairment reserve recorded	1,318	962	349
With impairment reserve recorded	0	0	52
Total	1,318	962	401
Foregone interest income
With no impairment reserve recorded	91	25	22
With impairment reserve recorded	0	0	4
Total	91	25	26
Interest income recognized
With no impairment reserve recorded	79	0	0
With impairment reserve recorded	0	0	0
Total	79	0	0
Net foregone interest income
With no impairment reserve recorded	12	25	22
With impairment reserve recorded	0	0	4
Total	12	25	26
Land development
Recorded investment
With no impairment reserve recorded	3,440	4,413	4,962
With impairment reserve recorded	0	0	0
Total	3,440	4,413	4,962
Unpaid principal balance
With no impairment reserve recorded	6,111	7,083	7,633
With impairment reserve recorded	0	0	0
Total	6,111	7,083	7,633
Impairment reserve
Impairment reserve	0	0	0
Average recorded investment
With no impairment reserve recorded	3,898	4,333	5,253
With impairment reserve recorded	0	0	0
Total	3,898	4,333	5,253
Foregone interest income
With no impairment reserve recorded	107	133	155
With impairment reserve recorded	0	0	0
Total	107	133	155
Interest income recognized
With no impairment reserve recorded	0	0	0
With impairment reserve recorded	0	0	0
Total	0	0	0
Net foregone interest income
With no impairment reserve recorded	107	133	155
With impairment reserve recorded	0	0	0
Total	107	133	155
Construction
Recorded investment
With no impairment reserve recorded	436	120	195
With impairment reserve recorded	2,482	397	0
Total	2,918	517	195
Unpaid principal balance
With no impairment reserve recorded	438	120	195
With impairment reserve recorded	2,482	397	0
Total	2,920	517	195
Impairment reserve
Impairment reserve	1,790	48	0
Average recorded investment
With no impairment reserve recorded	291	474	32
With impairment reserve recorded	834	34	0
Total	1,125	508	32
Foregone interest income
With no impairment reserve recorded	20	0	0
With impairment reserve recorded	45	0	0
Total	65	0	0
Interest income recognized
With no impairment reserve recorded	0	0	0
With impairment reserve recorded	0	0	0
Total	0	0	0
Net foregone interest income
With no impairment reserve recorded	20	0	0
With impairment reserve recorded	45	0	0
Total	65	0	0
Multi-family
Recorded investment
With no impairment reserve recorded	0	2	17
With impairment reserve recorded	0	0	0
Total	0	2	17
Unpaid principal balance
With no impairment reserve recorded	0	369	384
With impairment reserve recorded	0	0	0
Total	0	369	384
Impairment reserve
Impairment reserve	0	0	0
Average recorded investment
With no impairment reserve recorded	0	10	24
With impairment reserve recorded	0	0	0
Total	0	10	24
Foregone interest income
With no impairment reserve recorded	1	27	53
With impairment reserve recorded	0	0	0
Total	1	27	53
Interest income recognized
With no impairment reserve recorded	134	0	0
With impairment reserve recorded	0	0	0
Total	134	0	0
Net foregone interest income
With no impairment reserve recorded	(133)	27	53
With impairment reserve recorded	0	0	0
Total	(133)	27	53
1-4 family
Recorded investment
With no impairment reserve recorded	2,379	2,423	1,181
With impairment reserve recorded	193	945	390
Total	2,572	3,368	1,571
Unpaid principal balance
With no impairment reserve recorded	2,379	2,486	1,218
With impairment reserve recorded	199	950	390
Total	2,578	3,436	1,608
Impairment reserve
Impairment reserve	39	173	155
Average recorded investment
With no impairment reserve recorded	2,755	1,604	380
With impairment reserve recorded	203	605	405
Total	2,958	2,209	785
Foregone interest income
With no impairment reserve recorded	125	82	15
With impairment reserve recorded	5	34	18
Total	130	116	33
Interest income recognized
With no impairment reserve recorded	94	4	12
With impairment reserve recorded	0	0	0
Total	94	4	12
Net foregone interest income
With no impairment reserve recorded	31	78	3
With impairment reserve recorded	5	34	18
Total	36	112	21
Commercial and industrial
Recorded investment
With no impairment reserve recorded	3,769	2,546	2,316
With impairment reserve recorded	8,704	6,603	33
Total	12,473	9,149	2,349
Unpaid principal balance
With no impairment reserve recorded	3,769	2,590	2,926
With impairment reserve recorded	8,704	6,603	33
Total	12,473	9,193	2,959
Impairment reserve
Impairment reserve	3,700	847	33
Average recorded investment
With no impairment reserve recorded	918	544	6,141
With impairment reserve recorded	8,239	810	34
Total	9,157	1,354	6,175
Foregone interest income
With no impairment reserve recorded	143	172	463
With impairment reserve recorded	637	102	0
Total	780	274	463
Interest income recognized
With no impairment reserve recorded	62	6	649
With impairment reserve recorded	0	0	0
Total	62	6	649
Net foregone interest income
With no impairment reserve recorded	81	166	(186)
With impairment reserve recorded	637	102	0
Total	718	268	(186)
Direct financing leases, net
Recorded investment
With no impairment reserve recorded	0	38	0
With impairment reserve recorded	0	0	0
Total	0	38	0
Unpaid principal balance
With no impairment reserve recorded	0	38	0
With impairment reserve recorded	0	0	0
Total	0	38	0
Impairment reserve
Impairment reserve	0	0	0
Average recorded investment
With no impairment reserve recorded	6	4	0
With impairment reserve recorded	0	0	0
Total	6	4	0
Foregone interest income
With no impairment reserve recorded	0	0	0
With impairment reserve recorded	0	0	0
Total	0	0	0
Interest income recognized
With no impairment reserve recorded	0	0	0
With impairment reserve recorded	0	0	0
Total	0	0	0
Net foregone interest income
With no impairment reserve recorded	0	0	0
With impairment reserve recorded	0	0	0
Total	0	0	0
Home equity and second mortgages
Recorded investment
With no impairment reserve recorded	8	500	380
With impairment reserve recorded	0	99	53
Total	8	599	433
Unpaid principal balance
With no impairment reserve recorded	8	500	380
With impairment reserve recorded	0	99	53
Total	8	599	433
Impairment reserve
Impairment reserve	0	25	53
Average recorded investment
With no impairment reserve recorded	307	390	495
With impairment reserve recorded	0	58	57
Total	307	448	552
Foregone interest income
With no impairment reserve recorded	16	23	18
With impairment reserve recorded	0	10	5
Total	16	33	23
Interest income recognized
With no impairment reserve recorded	127	63	0
With impairment reserve recorded	0	0	0
Total	127	63	0
Net foregone interest income
With no impairment reserve recorded	(111)	(40)	18
With impairment reserve recorded	0	10	5
Total	(111)	(30)	23
Other
Recorded investment
With no impairment reserve recorded	604	655	721
With impairment reserve recorded	0	0	0
Total	604	655	721
Unpaid principal balance
With no impairment reserve recorded	1,270	1,321	1,389
With impairment reserve recorded	0	0	0
Total	1,270	1,321	1,389
Impairment reserve
Impairment reserve	0	0	0
Average recorded investment
With no impairment reserve recorded	529	688	768
With impairment reserve recorded	0	0	0
Total	529	688	768
Foregone interest income
With no impairment reserve recorded	71	82	87
With impairment reserve recorded	0	0	0
Total	71	82	87
Interest income recognized
With no impairment reserve recorded	0	0	0
With impairment reserve recorded	0	0	0
Total	0	0	0
Net foregone interest income
With no impairment reserve recorded	71	82	87
With impairment reserve recorded	0	0	0
Total	$ 71	$ 82	$ 87

Loan and Lease Receivables, I75

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Allowance for Loan and Lease Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Allowance for credit losses:
Beginning balance	$ 16,316	$ 14,329
Charge-offs	(3,594)	(1,513)
Recoveries	372	114
Provision	7,818	3,386
Ending balance	16,316	14,329	$ 20,912	$ 16,316
Ending balance: individually evaluated for impairment			5,599	1,113
Ending balance: collectively evaluated for impairment			15,313	15,203
Loans and lease receivables:
Total gross loans and leases receivable			1,451,864	1,432,027
Ending balance: individually evaluated for impairment			24,286	20,852
Ending balance: collectively evaluated for impairment			$ 1,425,953	$ 1,408,187
Allowance as percent of gross loans and leases			1.44%	1.14%
Commercial real estate:
Allowance for credit losses:
Beginning balance	11,220	8,619
Charge-offs	(1,194)	(793)
Recoveries	274	104
Provision	2,084	3,290
Ending balance	11,220	8,619	$ 12,384	$ 11,220
Ending balance: individually evaluated for impairment			1,899	240
Ending balance: collectively evaluated for impairment			10,485	10,980
Loans and lease receivables:
Total gross loans and leases receivable			945,874	904,185
Ending balance: individually evaluated for impairment			11,222	10,849
Ending balance: collectively evaluated for impairment			$ 933,048	$ 890,594
Allowance as percent of gross loans and leases			1.31%	1.24%
Commercial and Industrial Loans and Leases Receivable [Member]
Allowance for credit losses:
Beginning balance	4,387	5,492
Charge-offs	(2,273)	(711)
Recoveries	91	6
Provision	5,765	(400)
Ending balance	4,387	5,492	$ 7,970	$ 4,387
Ending balance: individually evaluated for impairment			3,700	847
Ending balance: collectively evaluated for impairment			4,270	3,540
Loans and lease receivables:
Total gross loans and leases receivable			481,249	503,286
Ending balance: individually evaluated for impairment			12,452	8,942
Ending balance: collectively evaluated for impairment			$ 468,776	$ 494,098
Allowance as percent of gross loans and leases			1.66%	0.87%
Consumer and other:
Allowance for credit losses:
Beginning balance	709	218
Charge-offs	(127)	(9)
Recoveries	7	4
Provision	(31)	496
Ending balance	$ 709	$ 218	$ 558	$ 709
Ending balance: individually evaluated for impairment			0	26
Ending balance: collectively evaluated for impairment			558	683
Loans and lease receivables:
Total gross loans and leases receivable			24,741	24,556
Ending balance: individually evaluated for impairment			612	1,061
Ending balance: collectively evaluated for impairment			$ 24,129	$ 23,495
Allowance as percent of gross loans and leases			2.26%	2.89%
Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for credit losses:
Ending balance: individually evaluated for impairment			$ 0	$ 0
Loans and lease receivables:
Ending balance: individually evaluated for impairment			1,625	3,181
Receivables Acquired with Deteriorated Credit Quality [Member] | Commercial real estate:
Allowance for credit losses:
Ending balance: individually evaluated for impairment			0	0
Loans and lease receivables:
Ending balance: individually evaluated for impairment			1,604	2,742
Receivables Acquired with Deteriorated Credit Quality [Member] | Commercial and Industrial Loans and Leases Receivable [Member]
Allowance for credit losses:
Ending balance: individually evaluated for impairment			0	0
Loans and lease receivables:
Ending balance: individually evaluated for impairment			21	246
Receivables Acquired with Deteriorated Credit Quality [Member] | Consumer and other:
Allowance for credit losses:
Ending balance: individually evaluated for impairment			0	0
Loans and lease receivables:
Ending balance: individually evaluated for impairment			$ 0	$ 193

Loan and Lease Receivables, I76

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses Net Investment In Direct Financing Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Minimum lease payments receivable	$ 26,096	$ 27,361
Estimated unguaranteed residual values in leased property	7,625	7,036
Initial direct costs	106	158
Unearned lease and residual income	(2,876)	(3,462)
Investment in commercial direct financing leases	$ 30,951	$ 31,093

Loan and Lease Receivables, I77

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses Future Minimum Lease Payments To Be Received (Details) $ in Thousands	Dec. 31, 2016USD ($)
Direct Financing Leases, Future Minimum Payments Receivable By Year [Abstract]
2,017	$ 7,863
2,018	7,584
2,019	5,331
2,020	3,520
2,021	1,251
Thereafter	547
Total	$ 26,096

Loan and Lease Receivables, I78

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Narrative Disclosures) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2016	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			0
Total amount of SBA loan participations remaining on the corporations balance sheet	$ 62,100		$ 62,100	$ 53,200
Loans and leases transferred to third parties total principal amount	17,600	$ 26,800
Gain (Loss) Recognized on Participation Interest in Originated Loans			0
Gain on sale of SBA loans			4,400	3,999	$ 318
Loan participations purchased on the Corporation's balance sheet	1,200		1,200	1,800
Total amount of outstanding loans transferred to third parties as loan participations	102,700		102,700	91,000
Total amount of loan participations remaining on the Corporation's balance sheet	106,100		106,100	110,600
Loans in the participation sold portfolio, considered impaired	0		0	0
Residential Real Estate Loans Sold, Principal Amount			26,300	32,600
Loans to executive officers, directors and their related interests	6,300		6,300	6,900
New loans granted to executive officers, directors and their related interests			700	3,900
Repayments on loans to executive officers, directors and their related interests			1,300	1,366
Loans and leases receivable, related parties, impaired	0		0	0
Total gross loans and leases receivable	1,451,864		1,451,864	1,432,027
Non-accrual troubled debt restructurings	12,800		12,800	16,200
Unfunded commitments, troubled debt restructurings	0		0
Loans and leases receivable, difference between recorded investment and unpaid principal balance	3,400		3,400	3,900	4,400
Performing troubled debt restructurings	717		717	1,735	2,003
Impairments of residual value of leased property			0	0	$ 0
SBA loans in the participation sold portfolio, considered impaired	5,500		5,500	1,100
Guaranteed Portion of SBA Loans Sold to Third Parties Total			41,200	40,200
Total amount of outstanding SBA loans sold	105,100		105,100	78,200
Unguaranteed portion of Sold SBA Loans Retained on the Balance Sheet	32,200		32,200	26,200
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total gross loans and leases receivable	34,300		34,300	26,800
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total gross loans and leases receivable	0		0	0
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total gross loans and leases receivable	0		0	0
Loss
Financing Receivable, Recorded Investment [Line Items]
Total gross loans and leases receivable	$ 0		$ 0	$ 0

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Abstract]
Land	$ 650	$ 650
Building and leasehold improvements	3,019	2,879
Furniture and equipment	5,366	4,921
Total premises and equipment, gross	9,035	8,450
Less: accumulated depreciation	(5,263)	(4,496)
Total premises and equipment, net	$ 3,772	$ 3,954

Premises and Equipment Premises

Premises and Equipment Premises and Equipment (Narrative Disclosures) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Depreciation	$ 767,000	$ 746,000	$ 385,000

Goodwill and Intangible Asset81

Goodwill and Intangible Assets (Schedule of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets
net book value	$ 202
Core Deposits
Finite-Lived Intangible Assets
Gross carrying amount	347	$ 347	$ 347
Less: accumulated amortization	145	83	12
net book value	202	264	335
Amortization during the period	$ 62	$ 71	$ 12

Goodwill and Intangible Asset82

Goodwill and Intangible Assets (Future Amortization Expense) (Details) $ in Thousands	Dec. 31, 2016USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity
2,017	$ 54
2,018	47
2,019	40
2,020	35
2,021	26
net book value	$ 202

Goodwill and Intangible Asset83

Goodwill and Intangible Assets (Narrative Disclosures) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 10,700,000	$ 10,700,000
Goodwill impairment charges		0
Loan servicing asset	1,906,000	1,563,000
Loan servicing asset amortization	$ 639,000	$ 197,000	$ 24,000

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Accrued interest receivable	$ 4,677	$ 4,412
Net deferred tax asset	4,052	2,633
Investment in limited partnerships	3,963	3,215
Investment in Community Development Entities	7,106	7,500
Investment in Historic Development Entities	737	578
Investment in Trust II	315	315
Fair value of interest rate swaps	352	552
Prepaid expenses	3,074	3,330
Other assets	4,331	1,536
Total accrued interest receivable and other assets	$ 28,607	$ 24,071

Other Assets Investments in Lim

Other Assets Investments in Limited Partnerships (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Share of the partnerships’ income	$ 790,000	$ 481,000	$ 774,000
Investment in limited partnerships	3,963,000	3,215,000
Investment in Historic Development Entities	737,000	578,000
Aldine Capital Fund, LP
Schedule of Equity Method Investments [Line Items]
Investment in limited partnerships	883,000	1,000,000
Aldine Capital Fund II, LP
Schedule of Equity Method Investments [Line Items]
Investment in limited partnerships	$ 3,100,000	$ 2,200,000

Other Assets Narrative (Details

Other Assets Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Sep. 26, 2008
Variable Interest Entity [Line Items]
Income (Loss) from Equity Method Investments	$ 790,000	$ 481,000	$ 774,000
Investment in limited partnerships	3,963,000	3,215,000
Investment in Community Development Entities	7,106,000	7,500,000
Sole ownership of common securities issued by Trust II	315,000
Junior subordinated notes	10,004,000	10,000,000
Investment in Trust II	315,000	315,000
Trust II
Variable Interest Entity [Line Items]
Sole ownership of common securities issued by Trust II				$ 315,000
Junior subordinated notes				$ 10,000,000
Fixed rate				10.50%
Aldine Capital Fund, LP
Variable Interest Entity [Line Items]
Investment in limited partnerships	883,000	1,000,000
Aldine Capital Fund II, LP
Variable Interest Entity [Line Items]
Investment in limited partnerships	$ 3,100,000	$ 2,200,000

Other Assets Other Assets Tax C

Other Assets Other Assets Tax Credit Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Tax Credit Carryforward [Line Items]
Investment in limited partnerships	$ 3,963,000	$ 3,963,000	$ 3,215,000
Investment Tax Credit Impairment Cost		3,691,000	0	$ 0
Investment in Community Development Entities	7,106,000	7,106,000	7,500,000
Mitchell Street Apartments | Historic Rehabilitation Tax Credits
Tax Credit Carryforward [Line Items]
Investment in limited partnerships	563,000	563,000
Estimated Capital Contributions	5,500,000	$ 5,500,000
Tax Credit Benefit Recognized, Period for Recapture		5 years
Tax Credit Benefits Recognized		$ 0
Rimrock Road | New Market Tax Credits
Tax Credit Carryforward [Line Items]
New Market Tax Credit Benefit, Period of Recognition		7 years
Federal New Market Tax Credits Not Yet Recognized	1,800,000	$ 1,800,000
Tax Credit Benefits Recognized		375,000
Rimrock Road | New Market Tax Credits | Federal New Market Tax Credit
Tax Credit Carryforward [Line Items]
Tax Credit Benefits Recognized			375,000
BOC Investment | Historic Rehabilitation Tax Credits
Tax Credit Carryforward [Line Items]
Investment in limited partnerships	174,000	174,000	$ 578,000
Capital Contributions		$ 2,800,000
Investment Tax Credit Impairment Cost	3,300,000
Tax Credit Benefits Recognized	$ 3,800,000

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Deposit [Line Items]
Deposits	$ 1,538,855	$ 1,577,231
Deposits, average balance	$ 1,591,971	$ 1,496,982
Deposits, average rate	0.74%	0.73%
Non-interest-bearing transaction accounts
Deposit [Line Items]
Deposits	$ 252,638	$ 231,199
Deposits, average balance	$ 246,182	$ 211,945
Deposits, average rate	0.00%	0.00%
Interest-bearing transaction accounts
Deposit [Line Items]
Deposits	$ 183,992	$ 165,921
Deposits, average balance	$ 169,571	$ 125,558
Deposits, average rate	0.27%	0.24%
Money market accounts
Deposit [Line Items]
Deposits	$ 627,090	$ 612,642
Deposits, average balance	$ 642,784	$ 602,842
Deposits, average rate	0.48%	0.55%
Certificates of deposit
Deposit [Line Items]
Deposits	$ 58,454	$ 79,986
Deposits, average balance	$ 65,608	$ 106,177
Deposits, average rate	0.90%	0.78%
Wholesale deposits
Deposit [Line Items]
Deposits	$ 416,681	$ 487,483
Deposits, average balance	$ 467,826	$ 450,460
Deposits, average rate	1.62%	1.43%

Deposits Time deposits by matur

Deposits Time deposits by maturity (Details) $ in Thousands	Dec. 31, 2016USD ($)
Time Deposits, Fiscal Year Maturity [Abstract]
2,017	$ 145,615
2,018	123,135
2,019	68,089
2,020	85,173
2,021	21,476
Thereafter	31,647
Total	$ 475,135

Deposits Deposits Narrative (De

Deposits Deposits Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Deposits [Abstract]
Time Deposits, $250,000 or More	$ 8.9	$ 11.5

FHLB Advances, Other Borrowin91

FHLB Advances, Other Borrowings and Junior Subordinated Notes (Composition of Borrowed Funds) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 69,680	$ 44,730
Borrowed Funds, Average Balance	$ 50,945	$ 49,705
Borrowed funds, interest rate during period	6.03%	5.94%
Long-term borrowings
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 49,092	$ 37,720
Short-term borrowings
Composition of Borrowed Funds [Line Items]
Borrowed funds	20,588	7,010
Federal funds purchased
Composition of Borrowed Funds [Line Items]
Borrowed funds	0	0
Borrowed Funds, Average Balance	$ 178	$ 237
Borrowed funds, interest rate during period	0.92%	0.86%
FHLB advances [Member]
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 33,578	$ 8,198
Borrowed Funds, Average Balance	$ 14,485	$ 14,779
Borrowed funds, interest rate during period	0.97%	0.75%
Other Borrowings [Member]
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 2,590	$ 1,592
Borrowed Funds, Average Balance	$ 1,739	$ 678
Borrowed funds, interest rate during period	7.64%	9.66%
Line of credit
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 1,010	$ 2,510
Borrowed Funds, Average Balance	$ 2,079	$ 1,619
Borrowed funds, interest rate during period	3.26%	3.18%
Subordinated notes payable
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 22,498	$ 22,440
Borrowed Funds, Average Balance	$ 22,467	$ 22,410
Borrowed funds, interest rate during period	7.13%	7.14%
Junior subordinated notes
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 10,004	$ 9,990
Borrowed Funds, Average Balance	$ 9,997	$ 9,982
Borrowed funds, interest rate during period	11.07%	11.14%

FHLB Advances, Other Borrowin92

FHLB Advances, Other Borrowings and Junior Subordinated Notes FHLB Borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Line of Credit Facility [Line Items]
Borrowed funds	$ 69,680	$ 44,730
Loans pledged as collateral for Federal Home Loan Bank advances and unused available credit	326,400	75,000
Collateralized mortgage obligations pledged as collateral for Federal Home Loan Bank advances and unused available credit	20,700	21,700
FHLB advances and other borrowings
Line of Credit Facility [Line Items]
Federal Home Loan Bank line of credit maximum available	347,100
Federal Home Loan Bank unused line remaining	313,600
Line of credit, amount outstanding	0	0
FHLB advances and other borrowings
Line of Credit Facility [Line Items]
Borrowed funds	$ 33,600	$ 8,197
FHLB advances and other borrowings | Minimum
Line of Credit Facility [Line Items]
Fixed rate	0.83%	0.89%
FHLB advances and other borrowings | Maximum
Line of Credit Facility [Line Items]
Fixed rate	4.43%	4.96%

FHLB Advances, Other Borrowin93

FHLB Advances, Other Borrowings and Junior Subordinated Notes Line of credit type (Details) - USD ($)	Feb. 19, 2015	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015
Line of Credit Facility [Line Items]
Debt and Capital Lease Obligations			$ 69,680,000	$ 44,730,000
Line of credit
Line of Credit Facility [Line Items]
Debt and Capital Lease Obligations			1,010,000	2,510,000
Line of credit
Line of Credit Facility [Line Items]
Senior line of credit with a third-party financial institution			10,500,000
Line of credit - unused line fee			$ 13,000	$ 13,000
London Interbank Offered Rate (LIBOR) | Line of credit
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	2.75%	2.75%
Minimum | London Interbank Offered Rate (LIBOR) | Line of credit
Line of Credit Facility [Line Items]
Fixed rate			3.125%
Minimum | Interest rate floor debt | Line of credit
Line of Credit Facility [Line Items]
Fixed rate			3.125%

FHLB Advances, Other Borrowin94

FHLB Advances, Other Borrowings and Junior Subordinated Notes Subordinated notes payable and junior subordinated notes payable (Details) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Aug. 26, 2014
Subordinated Borrowing [Line Items]
Borrowed funds		$ 69,680	$ 44,730
Repayment of subordinated notes payable		0	0	$ 4,000
Junior subordinated notes		10,004	9,990
Debt issuance costs, unamortized		311
Subordinated Debt
Subordinated Borrowing [Line Items]
Fixed rate					6.50%
Subordinated debt - third party financial institution
Subordinated Borrowing [Line Items]
Subordinated notes payable		1,700
Subordinated debt - private placement
Subordinated Borrowing [Line Items]
Subordinated notes payable		6,200
Junior subordinated notes
Subordinated Borrowing [Line Items]
Junior subordinated notes		$ 10,315
Fixed rate		10.50%
Subordinated debt - private placement
Subordinated Borrowing [Line Items]
Subordinated debt, fixed interest rate		7.50%
Subordinated Debt
Subordinated Borrowing [Line Items]
Borrowed funds		$ 22,498	$ 22,440
London Interbank Offered Rate (LIBOR) | Subordinated debt - third party financial institution
Subordinated Borrowing [Line Items]
Debt instrument, basis spread on variable rate	4.75%
Aslin Group, Inc. | Subordinated Debt - Issued to fund mergers
Subordinated Borrowing [Line Items]
Subordinated notes payable					$ 15,000
Minimum | Interest rate floor debt | Subordinated debt - third party financial institution
Subordinated Borrowing [Line Items]
Fixed rate		6.00%

FHLB Advances, Other Borrowin95

FHLB Advances, Other Borrowings and Junior Subordinated Notes Trust II Issuance Of Trust Preferred Securities (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Sep. 26, 2008
Variable Interest Entity [Line Items]
Junior subordinated notes	$ 10,004,000	$ 10,000,000
Sole ownership of common securities issued by Trust II	$ 315,000
Trust II
Variable Interest Entity [Line Items]
Junior subordinated notes			$ 10,000,000
Trust preferred securities fixed rate			10.50%
Sole ownership of common securities issued by Trust II			$ 315,000

FHLB Advances, Other Borrowin96

FHLB Advances, Other Borrowings and Junior Subordinated Notes (Narrative Disclosures) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Debt Disclosure [Abstract]
Unamortized Debt Issuance Cost, Subordinated Notes	$ 428,000
Unamortized Debt Issuance Expense	311,000
Securities sold under agreements to repurchase		$ 0
Federal funds purchased		0
Proceeds from issuance of common stock	$ 0	$ 0	$ 16,557,000

Stockholders' Equity and Regu97

Stockholders' Equity and Regulatory Capital (Regulatory Capital Ratios) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Compliance with Regulatory Capital Requirements under Banking Regulations
Total Capital	$ 204,117	$ 189,163
Total Capital to Risk-Weighted Assets	11.74%	11.11%
Total Capital, Minimum Required for Capital Adequacy Purposes	$ 139,101	$ 136,208
Total Capital to Risk-Weighted Assets, Minimum Required for Capital Adequacy Purposes	8.00%	8.00%
Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 149,968
Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	8.625%
Tier 1 capital	$ 160,964	$ 149,920
Tier 1 Capital to Risk-Weighted Assets	9.26%	8.81%
Tier 1 Capital, Minimum Required for Capital Adequacy Purposes	$ 104,326	$ 102,156
Tier 1 Capital to Risk-Weighted Assets, Minimum Required for Capital Adequacy Purposes	6.00%	6.00%
Tier One Risk Based Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 115,193
Tier One Risk Based Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	6.625%
Common Equity Tier One Capital	$ 150,960	$ 139,920
Common Equity Tier One Capital to Risk-Weighted Assets	8.68%	8.22%
Common Equity Tier One Capital Required for Capital Adequacy	$ 78,244	$ 76,617
Common Equity Tier One Capital Required for Capital Adequacy to Risk-Weighted Assets	4.50%	4.50%
Common Equity Tier One Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 89,111
Common Equity Tier One Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	5.125%
Tier 1 Capital	$ 160,964	$ 149,920
Tier 1 Capital to Average Assets	9.07%	8.63%
Tier 1 Leverage Capital, Minimum Required for Capital Adequacy Purposes	$ 70,985	$ 69,466
Tier 1 Leverage Capital to Average Assets, Minimum Required for Capital Adequacy Purposes	4.00%	4.00%
Tier One Leverage Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 70,985
Tier One Leverage Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	4.00%
First Business Bank
Compliance with Regulatory Capital Requirements under Banking Regulations
Total Capital	$ 147,811	$ 141,388
Total Capital to Risk-Weighted Assets	11.55%	11.12%
Total Capital, Minimum Required for Capital Adequacy Purposes	$ 102,362	$ 101,754
Total Capital to Risk-Weighted Assets, Minimum Required for Capital Adequacy Purposes	8.00%	8.00%
Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 110,360
Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	8.625%
Total Capital, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	$ 127,953	$ 127,193
Total Capital to Risk-Weighted Assets, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	10.00%	10.00%
Tier 1 capital	$ 134,208	$ 128,852
Tier 1 Capital to Risk-Weighted Assets	10.49%	10.13%
Tier 1 Capital, Minimum Required for Capital Adequacy Purposes	$ 76,772	$ 76,316
Tier 1 Capital to Risk-Weighted Assets, Minimum Required for Capital Adequacy Purposes	6.00%	6.00%
Tier One Risk Based Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 84,769
Tier One Risk Based Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	6.625%
Tier 1 Capital, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	$ 102,362	$ 101,754
Tier 1 Capital, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	8.00%	8.00%
Common Equity Tier One Capital	$ 134,208	$ 128,852
Common Equity Tier One Capital to Risk-Weighted Assets	10.49%	10.13%
Common Equity Tier One Capital Required for Capital Adequacy	$ 57,579	$ 57,237
Common Equity Tier One Capital Required for Capital Adequacy to Risk-Weighted Assets	4.50%	4.50%
Common Equity Tier One Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 65,576
Common Equity Tier One Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	5.125%
Common Equity Tier One Capital to be Well Capitalized	$ 83,170	$ 110,669
Common Equity Tier One Capital Required to be Well Capitalized to Risk-Weighted Assets	6.50%	6.50%
Tier 1 Capital	$ 134,208	$ 128,852
Tier 1 Capital to Average Assets	10.40%	10.44%
Tier 1 Leverage Capital, Minimum Required for Capital Adequacy Purposes	$ 51,600	$ 49,359
Tier 1 Leverage Capital to Average Assets, Minimum Required for Capital Adequacy Purposes	4.00%	4.00%
Tier One Leverage Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 51,600
Tier One Leverage Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	4.00%
Tier 1 Leverage Capital, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	$ 64,500	$ 61,698
Tier 1 Leverage Capital to Average Assets, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	5.00%	5.00%
First Business Bank – Milwaukee
Compliance with Regulatory Capital Requirements under Banking Regulations
Total Capital	$ 24,347	$ 20,931
Total Capital to Risk-Weighted Assets	11.02%	12.03%
Total Capital, Minimum Required for Capital Adequacy Purposes	$ 17,680	$ 13,914
Total Capital to Risk-Weighted Assets, Minimum Required for Capital Adequacy Purposes	8.00%	8.00%
Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 19,062
Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	8.625%
Total Capital, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	$ 22,101	$ 17,392
Total Capital to Risk-Weighted Assets, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	10.00%	10.00%
Tier 1 capital	$ 22,323	$ 19,172
Tier 1 Capital to Risk-Weighted Assets	10.10%	11.02%
Tier 1 Capital, Minimum Required for Capital Adequacy Purposes	$ 13,260	$ 10,435
Tier 1 Capital to Risk-Weighted Assets, Minimum Required for Capital Adequacy Purposes	6.00%	6.00%
Tier One Risk Based Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 14,642
Tier One Risk Based Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	6.625%
Tier 1 Capital, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	$ 17,680	$ 13,914
Tier 1 Capital, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	8.00%	8.00%
Common Equity Tier One Capital	$ 22,323	$ 19,172
Common Equity Tier One Capital to Risk-Weighted Assets	10.10%	11.02%
Common Equity Tier One Capital Required for Capital Adequacy	$ 9,945	$ 7,826
Common Equity Tier One Capital Required for Capital Adequacy to Risk-Weighted Assets	4.50%	4.50%
Common Equity Tier One Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 11,327
Common Equity Tier One Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	5.125%
Common Equity Tier One Capital to be Well Capitalized	$ 14,365	$ 82,675
Common Equity Tier One Capital Required to be Well Capitalized to Risk-Weighted Assets	6.50%	6.50%
Tier 1 Capital	$ 22,323	$ 19,172
Tier 1 Capital to Average Assets	9.15%	7.81%
Tier 1 Leverage Capital, Minimum Required for Capital Adequacy Purposes	$ 9,758	$ 9,821
Tier 1 Leverage Capital to Average Assets, Minimum Required for Capital Adequacy Purposes	4.00%	4.00%
Tier One Leverage Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 9,758
Tier One Leverage Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	4.00%
Tier 1 Leverage Capital, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	$ 12,198	$ 12,276
Tier 1 Leverage Capital to Average Assets, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	5.00%	5.00%
Alterra Bank
Compliance with Regulatory Capital Requirements under Banking Regulations
Total Capital	$ 31,699	$ 30,300
Total Capital to Risk-Weighted Assets	13.27%	11.39%
Total Capital, Minimum Required for Capital Adequacy Purposes	$ 19,106	$ 21,279
Total Capital to Risk-Weighted Assets, Minimum Required for Capital Adequacy Purposes	8.00%	8.00%
Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 20,599
Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	8.625%
Total Capital, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	$ 23,882	$ 26,598
Total Capital to Risk-Weighted Assets, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	10.00%	10.00%
Tier 1 capital	$ 28,685	$ 28,278
Tier 1 Capital to Risk-Weighted Assets	12.01%	10.63%
Tier 1 Capital, Minimum Required for Capital Adequacy Purposes	$ 14,329	$ 15,959
Tier 1 Capital to Risk-Weighted Assets, Minimum Required for Capital Adequacy Purposes	6.00%	6.00%
Tier One Risk Based Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 15,822
Tier One Risk Based Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	6.625%
Tier 1 Capital, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	$ 19,106	$ 21,279
Tier 1 Capital, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	8.00%	8.00%
Common Equity Tier One Capital	$ 28,685	$ 28,278
Common Equity Tier One Capital to Risk-Weighted Assets	12.01%	10.63%
Common Equity Tier One Capital Required for Capital Adequacy	$ 10,747	$ 11,969
Common Equity Tier One Capital Required for Capital Adequacy to Risk-Weighted Assets	4.50%	4.50%
Common Equity Tier One Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 12,240
Common Equity Tier One Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	5.125%
Common Equity Tier One Capital to be Well Capitalized	$ 15,524	$ 11,305
Common Equity Tier One Capital Required to be Well Capitalized to Risk-Weighted Assets	6.50%	6.50%
Tier 1 Capital	$ 28,685	$ 28,278
Tier 1 Capital to Average Assets	10.58%	9.89%
Tier 1 Leverage Capital, Minimum Required for Capital Adequacy Purposes	$ 10,842	$ 11,441
Tier 1 Leverage Capital to Average Assets, Minimum Required for Capital Adequacy Purposes	4.00%	4.00%
Tier One Leverage Capital Required for Capital Adequacy Plus Capital Conservation Buffer	$ 10,842
Tier One Leverage Capital Required for Capital Adequacy Plus Conservation Buffer to Risk Weighted Assets	4.00%
Tier 1 Leverage Capital, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	$ 13,552	$ 14,301
Tier 1 Leverage Capital to Average Assets, Minimum Required to be Well Capitalized Under Prompt Corrective Action Requirements	5.00%	5.00%

Stockholders' Equity and Regu98

Stockholders' Equity and Regulatory Capital Reconciliation of stockholders' equity to federal regulatory capital (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Regulatory Capital Requirements [Abstract]
Stockholders’ equity of the Corporation	$ 161,650	$ 150,832	$ 137,748	$ 109,275
Net unrealized and accumulated losses on specific items	522	80
Disallowed servicing assets	(652)	(370)
Disallowed goodwill and other intangibles	(10,560)	(10,622)
Junior subordinated notes	10,004	10,000
Tier 1 capital	160,964	149,920
Allowable general valuation allowances and subordinated debt	43,153	39,243
Total capital	$ 204,117	$ 189,163

Stockholders' Equity and Regu99

Stockholders' Equity and Regulatory Capital (Narrative Disclosures) (Details) - right	Jul. 15, 2008	Dec. 31, 2016
Regulatory Capital Requirements [Abstract]
Dividend Paid of One Common Share Purchase Right for Each Outstanding Share of Common Stock	1
Description of possible effects of noncompliance or less than adequately capitalized		Failure to meet minimum capital requirements can result in certain mandatory, and possibly additional discretionary actions on the part of regulators, that if undertaken, could have a direct material effect on the Banks’ assets, liabilities and certain off-balance-sheet items as calculated under regulatory practices.

Earnings Per Common Share (Deta

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Basic earnings per common share
Net income	$ 3,968	$ 2,665	$ 3,723	$ 4,553	$ 4,083	$ 4,381	$ 3,858	$ 4,192	$ 14,909	$ 16,514	$ 14,139
less: earnings allocated to participating securities									219	273	294
Earnings allocated to common shareholders									$ 14,690	$ 16,241	$ 13,845
Weighted-average common shares outstanding, excluding participating securities									8,573,722	8,549,176	7,869,956
Basic earnings per common share	$ 0.46	$ 0.31	$ 0.43	$ 0.52	$ 0.47	$ 0.50	$ 0.45	$ 0.48	$ 1.71	$ 1.90	$ 1.76
Diluted earnings per common share
Earnings allocated to common shareholders									$ 14,690	$ 16,241	$ 13,845
Reallocation of undistributed earnings									0	0	1
Diluted earnings allocated to common shareholders									$ 14,690	$ 16,241	$ 13,846
Weighted-average common shares outstanding, excluding participating securities									8,573,722	8,549,176	7,869,956
Dilutive effect of share-based awards									0	1,146	36,811
Weighted-average diluted common shares outstanding, excluding participating securities									8,573,722	8,550,322	7,906,767
Diluted earnings per common share	$ 0.46	$ 0.31	$ 0.43	$ 0.52	$ 0.47	$ 0.50	$ 0.45	$ 0.48	$ 1.71	$ 1.90	$ 1.75

Earnings Per Common Share (Narr

Earnings Per Common Share (Narrative Disclosures) (Details) - shares	Nov. 01, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition
Average anti-dilutive employee share based awards		0	0	4
Aslin Group, Inc.
Business Acquisition
Shares issued in business acquisition	720,162

Share-Based Compensation (Restr

Share-Based Compensation (Restricted Share Activity) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Number of Restricted Shares
Nonvested balance, beginning	135,471	154,998	169,418
Granted	60,415	53,790	64,522
Vested	(56,090)	(64,874)	(78,942)
Forfeited	(23,551)	(8,443)	0
Nonvested balance, ending	116,245	135,471	154,998
Weighted Average Grant-Date Fair Value
Nonvested balance, beginning	$ 20.13	$ 16.97	$ 11.55
Granted	22.74	22.52	22.49
Vested	18.71	15.23	9.86
Forfeited	20.90	15.03	0
Nonvested balance, ending	$ 21.13	$ 20.13	$ 16.97

Share-Based Compensation Share-

Share-Based Compensation Share-Based Compensation (Compensation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based compensation	$ 994	$ 1,063	$ 887

Share-Based Compensation (Narra

Share-Based Compensation (Narrative Disclosures) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of shares available for grant | shares	274,581
Deferred compensation expense yet to be recognized | $	$ 2.2
Period of time that deferred compensation expense will be recognized	2 years 9 months 17 days

Employee Benefit Plan (Details)

Employee Benefit Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Defined contribution maximum annual matching contribution per employee, percent	3.00%
Defined contribution maximum annual discretionary contribution per employee, percent	6.00%
Defined contribution plan, employer matching contribution, percent	3.00%
Defined contribution plan employer matching contribution	$ 621	$ 573	$ 398
Defined contribution plan employer discretionary contribution percent	1.20%	3.30%	4.70%
Defined contribution plan, employer discretionary contribution amount	$ 207	$ 549	$ 632
Deferred compensation plan compensation expense	124	116	$ 101
Present value of future payments under the remaining deferred compensation plan liability	$ 987	$ 863

Employee Benefit Plans (Details

Employee Benefit Plans (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Bank owned life insurance [Line Items]
Bank-owned life insurance	$ 39,048	$ 28,298
Bank owned life insurance death benefits	97,300	67,100
Insured executive officers with deferred compensation plans
Bank owned life insurance [Line Items]
Bank-owned life insurance	2,300	2,200
Bank owned life insurance death benefits	5,900	5,800
Other insured individuals
Bank owned life insurance [Line Items]
Bank-owned life insurance	$ 36,700	$ 26,100

Leases (Details)

Leases (Details) $ in Thousands	Dec. 31, 2016USD ($)
Operating Leases, Future Minimum Payments Due, By Year [Abstract]
2,017	$ 1,253
2,018	1,072
2,019	1,044
2,020	1,036
2,021	928
Thereafter	4,932
Total	$ 10,265

Leases (Narrative) (Details)

Leases (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Rent expense	$ 1,800	$ 1,700	$ 1,300
Leased Vehicles And Other Office Equipment
Property, Plant and Equipment [Line Items]
Rent expense	$ 136	$ 109	$ 37

Other Operating Expenses (Detai

Other Operating Expenses (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other Operating Expenses [Abstract]
General and administrative expenses	$ 1,545,000	$ 1,759,000	$ 1,024,000
Travel and other employee expenses	1,354,000	1,277,000	1,069,000
Computer software expenses	2,160,000	1,649,000	886,000
Partnership income	(790,000)	(481,000)	(774,000)
Foreclosed properties expenses	25,000	52,000	5,000
Other expenses	104,000	295,000	202,000
Total other non-interest expense	$ 4,398,000	$ 4,551,000	$ 2,412,000

Income Taxes Schedule of Compon

Income Taxes Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current Income Tax Expense (Benefit) [Abstract]
Current federal tax expense									$ 2,839	$ 5,881	$ 4,235
Current state tax expense									425	1,338	1,459
Current tax expense									3,264	7,219	5,694
Deferred Income Tax Expense (Benefit) [Abstract]
Deferred federal tax expense (benefit)									(1,000)	1,036	1,299
Deferred state tax expense (benefit)									(108)	122	90
Deferred tax (benefit) expense									(1,108)	1,158	1,389
Total income tax expense	$ (1,199)	$ 3,020	$ (1,621)	$ (2,356)	$ (2,185)	$ (2,060)	$ (1,962)	$ (2,170)	$ 2,156	$ 8,377	$ 7,083

Income Taxes Schedule Of Deferr

Income Taxes Schedule Of Deferred Tax Assets And Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Deferred tax assets, allowance for loan and lease losses	$ 8,177	$ 6,422
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, SBA Recourse Reserve	720	0
Deferred Tax Assets, Tax Deferred Expense, Excess Book Basis Over Tax Basis for Net Assets Acquired in Acquisitions	336	697
Deferred tax assets, deferred compensation	951	1,305
Deferred tax assets, state net operating loss carryforwards	548	666
Deferred tax assets, non-accrual loan interest	815	813
Deferred tax assets, capital loss carryforwards	32	33
Deferred tax assets, unrealized loss on securities	349	50
Deferred tax assets, other	394	342
Total deferred tax assets before valuation allowance	12,322	10,328
Deferred tax assets, valuation allowance	0	(68)
Total deferred tax assets	12,322	10,260
Deferred tax liabilities:
Deferred tax liabilities, leasing and fixed asset activities	7,389	6,878
Deferred Tax Liabilities, Intangible Assets	780	612
Deferred tax liabilities, other	101	137
Total deferred tax liabilities	8,270	7,627
Net deferred tax asset	$ 4,052	$ 2,633

Income Taxes Reconciliation of

Income Taxes Reconciliation of the Change in Net Deferred Tax Assets to Deferred Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Change in net deferred tax assets	$ 1,419	$ (970)	$ (119)
Deferred taxes allocated to other comprehensive income	(311)	(188)	352
Deferred Tax Assets Acquired in Business Acquisitions	0	0	(1,622)
Deferred income tax benefit (expense)	$ 1,108	$ (1,158)	$ (1,389)

Income Taxes Schedule of Effect

Income Taxes Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income before income tax expense	$ 5,167	$ (355)	$ 5,344	$ 6,909	$ 6,268	$ 6,441	$ 5,820	$ 6,362	$ 17,065	$ 24,891	$ 21,222
Income tax reconciliation, tax expense at statutory federal rate of 35%, 34.42%, and 34% applied to income before income tax expense, respectively									5,973	8,568	7,305
Income tax reconciliation, state income tax, net of federal effect									206	968	1,000
Income tax reconciliation, tax exempt income tax-exempt security and loan income, net of TEFRA adjustments									(1,114)	(879)	(736)
Income tax reconciliation, tax exempt income bank-owned life insurance									(341)	(330)	(296)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount									0	0	124
Effective Income Tax Rate Reconciliation, Tax Credit, Amount									(2,696)	(246)	(375)
Income tax reconciliation, other adjustments									128	296	61
Total income tax expense	$ (1,199)	$ 3,020	$ (1,621)	$ (2,356)	$ (2,185)	$ (2,060)	$ (1,962)	$ (2,170)	$ 2,156	$ 8,377	$ 7,083
Effective tax rate									12.63%	33.65%	33.38%

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Operating Loss Carryforwards [Line Items]
Unrecognized tax benefits at end of year	$ 0	$ 27
Unrecognized tax benefits, additions for tax positions of prior years	0
Unrecognized tax benefits, reductions for tax positions of prior years	0
Unrecognized tax benefits that are expected to significantly increase or decrease within the next twelve months	0
State and local jurisdiction
Operating Loss Carryforwards [Line Items]
State net operating loss carryforwards	10,700	12,900
Operating loss carryforwards, valuation allowance		$ (68)
Other tax carryforward, valuation allowance	$ 0

Derivative Financial Instrum115

Derivative Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Derivatives not designated as hedging instruments, fair value
Interest rate swaps - assets	$ 352	$ 552
Interest rate swaps - liabilities	$ 352	$ 552
Other assets
Derivatives not designated as hedging instruments, fair value
Description of location of interest rate derivative instruments not designated as hedging instruments on balance sheet	Accrued interest receivable and other assets	Accrued interest receivable and other assets
Other liabilities
Derivatives not designated as hedging instruments, fair value
Description of location of interest rate derivative instruments not designated as hedging instruments on balance sheet	Accrued interest payable and other liabilities	Accrued interest payable and other liabilities

Derivative Financial Instrum116

Derivative Financial Instruments (Narrative Disclosures) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Derivatives
Interest rate swaps - assets	$ 352	$ 552
Interest rate swaps - liabilities	352	$ 552
Derivative asset, fair value, amount offset against collateral	0
Derivative hedging instruments	$ 0
Interest rate derivatives, line item on income statement for gain (loss)	other non-interest income
To commercial borrowers, corporation receives fixed rates and pays floating rates
Derivatives
Interest rate swaps - assets	$ 352
To commercial borrowers, corporation receives fixed rates and pays floating rates | Minimum
Derivatives
Derivative, maturity date	Aug. 29, 2018
To commercial borrowers, corporation receives fixed rates and pays floating rates | Maximum
Derivatives
Derivative, maturity date	Jul. 15, 2027
To dealer countparties, corporation pays fixed rates and receives floating rates
Derivatives
Interest rate swaps - liabilities	$ 352
Interest rate derivative instruments not designated as hedging instruments at fair value, net	$ (352)
To dealer countparties, corporation pays fixed rates and receives floating rates | Minimum
Derivatives
Derivative, maturity date	Aug. 29, 2018
To dealer countparties, corporation pays fixed rates and receives floating rates | Maximum
Derivatives
Derivative, maturity date	Jul. 15, 2027
Not designated as hedging instrument | To commercial borrowers, corporation receives fixed rates and pays floating rates
Derivatives
Derivative, notional amount	$ 25,800
Not designated as hedging instrument | To dealer countparties, corporation pays fixed rates and receives floating rates
Derivatives
Derivative, notional amount	$ 25,800

Commitments and Contingencie117

Commitments and Contingencies (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Commitments to extend credit, primarily commercial loans
Lending Related Commitments by Type [Line Items]
Lending related commitments	$ 539,146	$ 512,627
Standby letters of credit
Lending Related Commitments by Type [Line Items]
Lending related commitments	$ 11,771	$ 18,622

Commitments and Contingencie118

Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
SBA Loans, Probability of Future Losses	$ 1,700
SBA Recourse Provision	2,068	$ 0	$ 0
Accrued credit losses for financial instruments with off-balance-sheet risk	$ 0	$ 0

Commitments and Contingencies C

Commitments and Contingencies Commitments and Contingencies (SBA Recourse Reserve) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Beginning Balance	$ 0
SBA Recourse Provision	2,068	$ 0	$ 0
SBA Loan Charge Offs, Net	(318)
Ending Balance	$ 1,750	$ 0

Fair Value (Measured on a Recur

Fair Value (Measured on a Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Interest rate swaps
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Liabilities measured on a recurring basis, fair value	$ 352	$ 552
Interest rate swaps | Fair Value Measurements - Level 1 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Liabilities measured on a recurring basis, fair value	0	0
Interest rate swaps | Fair Value Measurements - Level 2 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Liabilities measured on a recurring basis, fair value	352	552
Interest rate swaps | Fair Value Measurements - Level 3 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Liabilities measured on a recurring basis, fair value	0	0
Interest rate swaps
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	352	552
Interest rate swaps | Fair Value Measurements - Level 1 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	0	0
Interest rate swaps | Fair Value Measurements - Level 2 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	352	552
Interest rate swaps | Fair Value Measurements - Level 3 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	0	0
U.S. Government agency obligations - government-sponsored enterprises
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	6,295	8,017
U.S. Government agency obligations - government-sponsored enterprises | Fair Value Measurements - Level 1 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	0	0
U.S. Government agency obligations - government-sponsored enterprises | Fair Value Measurements - Level 2 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	6,295	8,017
U.S. Government agency obligations - government-sponsored enterprises | Fair Value Measurements - Level 3 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	0	0
Municipal obligations
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	8,156	4,283
Municipal obligations | Fair Value Measurements - Level 1 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	0	0
Municipal obligations | Fair Value Measurements - Level 2 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	8,156	4,283
Municipal obligations | Fair Value Measurements - Level 3 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	0	0
Asset-backed securities
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	1,081	1,269
Asset-backed securities | Fair Value Measurements - Level 1 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	0	0
Asset-backed securities | Fair Value Measurements - Level 2 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	1,081	1,269
Asset-backed securities | Fair Value Measurements - Level 3 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	0	0
Collateralized mortgage obligations - government issued
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	31,213	44,543
Collateralized mortgage obligations - government issued | Fair Value Measurements - Level 1 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	0	0
Collateralized mortgage obligations - government issued | Fair Value Measurements - Level 2 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	31,213	44,543
Collateralized mortgage obligations - government issued | Fair Value Measurements - Level 3 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	0	0
Collateralized mortgage obligations - government-sponsored enterprises
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	99,148	82,436
Collateralized mortgage obligations - government-sponsored enterprises | Fair Value Measurements - Level 1 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	0	0
Collateralized mortgage obligations - government-sponsored enterprises | Fair Value Measurements - Level 2 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	99,148	82,436
Collateralized mortgage obligations - government-sponsored enterprises | Fair Value Measurements - Level 3 Inputs
Fair Value, Assets and Liabilities Measured on a Recurring Basis
Assets measured on a recurring basis, fair value	$ 0	$ 0

Fair Value (Measured on a Non-R

Fair Value (Measured on a Non-Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Impaired loans
Fair Value, Assets and Liabilities Measured on a Nonrecurring Basis
Assets measured on a non-recurring basis, fair value	$ 13,365	$ 17,763
Impaired loans | Fair Value Measurements - Level 1 Inputs
Fair Value, Assets and Liabilities Measured on a Nonrecurring Basis
Assets measured on a non-recurring basis, fair value	0	0
Impaired loans | Fair Value Measurements - Level 2 Inputs
Fair Value, Assets and Liabilities Measured on a Nonrecurring Basis
Assets measured on a non-recurring basis, fair value	12,268	11,518
Impaired loans | Fair Value Measurements - Level 3 Inputs
Fair Value, Assets and Liabilities Measured on a Nonrecurring Basis
Assets measured on a non-recurring basis, fair value	1,097	6,245
Foreclosed properties
Fair Value, Assets and Liabilities Measured on a Nonrecurring Basis
Assets measured on a non-recurring basis, fair value	1,473	1,677
Foreclosed properties | Fair Value Measurements - Level 1 Inputs
Fair Value, Assets and Liabilities Measured on a Nonrecurring Basis
Assets measured on a non-recurring basis, fair value	0	0
Foreclosed properties | Fair Value Measurements - Level 2 Inputs
Fair Value, Assets and Liabilities Measured on a Nonrecurring Basis
Assets measured on a non-recurring basis, fair value	1,473	1,677
Foreclosed properties | Fair Value Measurements - Level 3 Inputs
Fair Value, Assets and Liabilities Measured on a Nonrecurring Basis
Assets measured on a non-recurring basis, fair value	0	0
Loan servicing rights
Fair Value, Assets and Liabilities Measured on a Nonrecurring Basis
Assets measured on a non-recurring basis, fair value	1,906	1,563
Loan servicing rights | Fair Value Measurements - Level 1 Inputs
Fair Value, Assets and Liabilities Measured on a Nonrecurring Basis
Assets measured on a non-recurring basis, fair value	0	0
Loan servicing rights | Fair Value Measurements - Level 2 Inputs
Fair Value, Assets and Liabilities Measured on a Nonrecurring Basis
Assets measured on a non-recurring basis, fair value	0	0
Loan servicing rights | Fair Value Measurements - Level 3 Inputs
Fair Value, Assets and Liabilities Measured on a Nonrecurring Basis
Assets measured on a non-recurring basis, fair value	$ 1,906	$ 1,563

Fair Value (Fair Value by Balan

Fair Value (Fair Value by Balance Sheet Groupings) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Financial assets:
Cash and cash equivalents, carrying amount	$ 77,517	$ 113,564	$ 103,237	$ 81,286
Securities available-for-sale, carrying amount	145,893	140,548
Held-to-maturity securities	38,612	37,282
Loans Receivable Held-for-sale, Amount	1,111	2,702
Loans and leases receivable, net amount, carrying amount	1,429,763	1,414,649
Cash surrender value of life insurance, carrying amount	39,048	28,298
Federal Home Loan Bank Stock and Federal Reserve Bank Stock	2,131	2,843
Accrued interest receivable, carrying amount	4,677	4,412
Interest rate swaps - assets	352	552
Cash and cash equivalents, fair value	77,517	113,564
Securities available-for-sale, fair value	145,893	140,548
Held-to-maturity Securities, Fair Value	38,520	37,558
Loans Held-for-sale, Fair Value Disclosure	1,111	2,702
Loans and lease receivables, net, fair value	1,447,044	1,445,773
Cash surrender value of life insurance, fair value	39,048	28,298
Federal Home Loan Bank and Federal Reserve Bank Stock, fair value	2,131	2,843
Accrued interest receivable, fair value	4,677	4,412
Interest rate swaps, fair value	352	552
Financial liabilities:
Deposits, carrying amount	1,538,855	1,577,231
Federal Home Loan Bank and other borrowings, carrying amount	59,676	34,740
Junior subordinated notes, carrying amount	10,004	9,990
Accrued interest payable, carrying amount	1,765	1,766
Interest rate swaps - liabilities	352	552
Standby letters of credit, carrying amount	58	183
Deposits, fair value	1,539,413	1,577,838
Federal Home Loan Bank and other borrowings, fair value	60,893	35,353
Junior subordinated notes, fair value	9,072	6,614
Accrued interest payable, fair value	1,765	1,766
Interest rate swaps, fair value	352	552
Standby letters of credit, fair value	58	183
Fair Value Measurements - Level 1 Inputs
Financial assets:
Cash and cash equivalents, fair value	55,622	100,063
Securities available-for-sale, fair value	0	0
Held-to-maturity Securities, Fair Value	0	0
Loans Held-for-sale, Fair Value Disclosure	0	0
Loans and lease receivables, net, fair value	0	0
Cash surrender value of life insurance, fair value	0	0
Federal Home Loan Bank and Federal Reserve Bank Stock, fair value	0	0
Accrued interest receivable, fair value	4,677	4,412
Interest rate swaps, fair value	0	0
Financial liabilities:
Deposits, fair value	1,063,720	1,009,762
Federal Home Loan Bank and other borrowings, fair value	0	0
Junior subordinated notes, fair value	0	0
Accrued interest payable, fair value	1,765	1,766
Interest rate swaps, fair value	0	0
Standby letters of credit, fair value	0	0
Fair Value Measurements - Level 2 Inputs
Financial assets:
Cash and cash equivalents, fair value	21,895	13,501
Securities available-for-sale, fair value	145,893	140,548
Held-to-maturity Securities, Fair Value	38,520	37,558
Loans Held-for-sale, Fair Value Disclosure	1,111	2,702
Loans and lease receivables, net, fair value	12,268	11,518
Cash surrender value of life insurance, fair value	39,048	28,298
Federal Home Loan Bank and Federal Reserve Bank Stock, fair value	2,131	2,843
Accrued interest receivable, fair value	0	0
Interest rate swaps, fair value	352	552
Financial liabilities:
Deposits, fair value	475,693	568,076
Federal Home Loan Bank and other borrowings, fair value	60,893	35,353
Junior subordinated notes, fair value	0	0
Accrued interest payable, fair value	0	0
Interest rate swaps, fair value	352	552
Standby letters of credit, fair value	0	0
Fair Value Measurements - Level 3 Inputs
Financial assets:
Cash and cash equivalents, fair value	0	0
Securities available-for-sale, fair value	0	0
Held-to-maturity Securities, Fair Value	0	0
Loans Held-for-sale, Fair Value Disclosure	0	0
Loans and lease receivables, net, fair value	1,434,776	1,434,255
Cash surrender value of life insurance, fair value	0	0
Federal Home Loan Bank and Federal Reserve Bank Stock, fair value	0	0
Accrued interest receivable, fair value	0	0
Interest rate swaps, fair value	0	0
Financial liabilities:
Deposits, fair value	0	0
Federal Home Loan Bank and other borrowings, fair value	0	0
Junior subordinated notes, fair value	9,072	6,614
Accrued interest payable, fair value	0	0
Interest rate swaps, fair value	0	0
Standby letters of credit, fair value	$ 58	$ 183

Fair Value (Narrative Disclosur

Fair Value (Narrative Disclosures) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Fair Value Inputs, Assets, Quantitative Information
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount1	$ 0	$ 0
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount1	0	0
Fair value, assets, transfers into level 3	0	0
Fair value, assets, transfers out of level 3	0	0
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount1	0	0
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount1	0	0
Fair value, liabilities, transfers into level 3	0	0
Fair value, liabilities, transfers out of level 3	0	0
Servicing Asset at Fair Value, Amount	1,906,000	1,563,000
Commercial paper	20,300,000	9,100,000
Certificates of deposit, at carrying value	1,600,000	4,500,000
FHLB stock par value equals carrying value	$ 100
Minimum
Fair Value Inputs, Assets, Quantitative Information
Quantification of unobservable inputs for level 3 values for impaired loans	15.00%
Maximum
Fair Value Inputs, Assets, Quantitative Information
Quantification of unobservable inputs for level 3 values for impaired loans	56.00%
Weighted average
Fair Value Inputs, Assets, Quantitative Information
Quantification of unobservable inputs for level 3 values for impaired loans	30.00%
Impaired loans
Fair Value Inputs, Assets, Quantitative Information
Assets measured on a non-recurring basis, fair value	$ 13,365,000	17,763,000
Foreclosed properties
Fair Value Inputs, Assets, Quantitative Information
Assets measured on a non-recurring basis, fair value	1,473,000	1,677,000
Fair Value Measurements - Level 3 Inputs | Impaired loans
Fair Value Inputs, Assets, Quantitative Information
Assets measured on a non-recurring basis, fair value	1,097,000	6,245,000
Fair Value Measurements - Level 3 Inputs | Foreclosed properties
Fair Value Inputs, Assets, Quantitative Information
Assets measured on a non-recurring basis, fair value	$ 0	$ 0

Condensed Parent Only Financ124

Condensed Parent Only Financial Information Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Assets
Cash and due from banks	$ 77,517	$ 113,564	$ 103,237	$ 81,286
Premises and equipment, net	3,772	3,954
Other assets	28,607	24,071
Total assets	1,780,699	1,782,081
Liabilities and Stockholders’ Equity
Borrowed funds	69,680	44,730
Other liabilities	10,514	9,288
Total liabilities	1,619,049	1,631,249
Stockholders’ equity	161,650	150,832	137,748	109,275
Total liabilities and stockholders’ equity	1,780,699	1,782,081
Parent company
Assets
Cash and due from banks	127	1,099	$ 1,179	$ 4,855
Investments in subsidiaries, at equity	196,221	187,530
Premises and equipment, net	1,605	1,519
Other assets	4,738	2,849
Total assets	202,691	192,997
Liabilities and Stockholders’ Equity
Borrowed funds	33,512	35,751
Other liabilities	7,529	6,414
Total liabilities	41,041	42,165
Stockholders’ equity	161,650	150,832
Total liabilities and stockholders’ equity	$ 202,691	$ 192,997

Condensed Parent Only Financ125

Condensed Parent Only Financial Information Condensed Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Net interest expense	$ 16,753	$ 15,295	$ 15,741	$ 15,539	$ 14,912	$ 14,610	$ 14,188	$ 14,930	$ 63,328	$ 58,640	$ 46,130
Non-interest income
Total non-interest income	3,931	3,640	5,823	4,594	4,935	4,102	4,126	3,848	17,988	17,011	10,103
Non-interest expense	14,523	15,753	13,458	12,699	11,684	11,984	11,974	11,732	56,433	47,374	33,775
Loss before income tax benefit and equity in undistributed net income of consolidated subsidiaries	5,167	(355)	5,344	6,909	6,268	6,441	5,820	6,362	17,065	24,891	21,222
Income tax benefit	(1,199)	3,020	(1,621)	(2,356)	(2,185)	(2,060)	(1,962)	(2,170)	2,156	8,377	7,083
Net income	$ 3,968	$ 2,665	$ 3,723	$ 4,553	$ 4,083	$ 4,381	$ 3,858	$ 4,192	14,909	16,514	14,139
Parent company
Condensed Financial Statements, Captions [Line Items]
Net interest expense									2,799	2,777	2,071
Non-interest income
Consulting and rental income from consolidated subsidiaries									16,036	13,398	10,776
Other									33	35	34
Total non-interest income									16,069	13,433	10,810
Non-interest expense									19,250	16,854	13,444
Loss before income tax benefit and equity in undistributed net income of consolidated subsidiaries									5,980	6,198	4,705
Income tax benefit									2,170	2,527	1,659
Loss before equity in undistributed net income of consolidated subsidiaries									3,810	3,671	3,046
Equity in undistributed net income of consolidated subsidiaries									18,719	20,185	17,185
Net income									$ 14,909	$ 16,514	$ 14,139

Condensed Parent Only Financ126

Condensed Parent Only Financial Information Condensed Statements of Cash Flows (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net Cash Provided by (Used in) Operating Activities
Net income	$ 3,968,000	$ 2,665,000	$ 3,723,000	$ 4,553,000	$ 4,083,000	$ 4,381,000	$ 3,858,000	$ 4,192,000	$ 14,909,000	$ 16,514,000	$ 14,139,000
Equity in undistributed earnings of consolidated subsidiaries									(790,000)	(481,000)	(774,000)
Share-based compensation									994,000	1,063,000	887,000
Excess tax benefit from share-based compensation									(142,000)	0	0
Increase in other liabilities									1,367,000	1,002,000	1,806,000
Other, net									(3,861,000)	(1,033,000)	(5,448,000)
Net cash provided by operating activities									26,162,000	23,220,000	11,874,000
Net Cash Provided by (Used in) Investing Activities
Net cash used in investing activities									(44,308,000)	(149,585,000)	(332,749,000)
Net Cash Provided by (Used in) Financing Activities
Net (decrease) increase in short-term borrowed funds									(1,500,000)	1,500,000	1,000,000
Proceeds from issuance of long-term debt, net of issuance costs									0	0	14,469,000
Repayment of long-term debt									0	0	(4,000,000)
Proceeds from issuance of common stock									0	0	16,557,000
Proceeds from exercise of stock options									0	300,000	936,000
Purchase of treasury stock									(467,000)	(946,000)	(1,795,000)
Excess tax benefit from share-based compensation									0	267,000	584,000
Cash dividends paid									(4,176,000)	(3,816,000)	(3,396,000)
Net cash (used in) provided by financing activities									(17,901,000)	136,692,000	342,826,000
Net (decrease) increase in cash and cash equivalents									(36,047,000)	10,327,000	21,951,000
Cash and cash equivalents at the beginning of the period				113,564,000				103,237,000	113,564,000	103,237,000	81,286,000
Cash and cash equivalents at the end of the period	77,517,000				113,564,000				77,517,000	113,564,000	103,237,000
Parent company
Net Cash Provided by (Used in) Operating Activities
Net income									14,909,000	16,514,000	14,139,000
Equity in undistributed earnings of consolidated subsidiaries									(18,719,000)	(20,185,000)	(17,185,000)
Share-based compensation									994,000	448,000	416,000
Excess tax benefit from share-based compensation									(83,000)	0	0
Increase in other liabilities									1,198,000	2,390,000	1,002,000
Other, net									(3,162,000)	(481,000)	(1,147,000)
Net cash provided by operating activities									(4,863,000)	(1,314,000)	(2,775,000)
Net Cash Provided by (Used in) Investing Activities
Dividends received from subsidiaries									13,534,000	7,034,000	8,000,000
Capital contributions to subsidiaries									(3,500,000)	(3,000,000)	(32,980,000)
Net cash used in investing activities									10,034,000	4,034,000	(24,980,000)
Net Cash Provided by (Used in) Financing Activities
Net (decrease) increase in short-term borrowed funds									(1,500,000)	1,500,000	1,000,000
Proceeds from issuance of long-term debt, net of issuance costs									0	0	14,469,000
Repayment of long-term debt									0	0	(4,000,000)
Proceeds from issuance of common stock									0	0	16,560,000
Proceeds from exercise of stock options									0	300,000	936,000
Purchase of treasury stock									(467,000)	(946,000)	(1,795,000)
Excess tax benefit from share-based compensation									0	162,000	305,000
Cash dividends paid									(4,176,000)	(3,816,000)	(3,396,000)
Net cash (used in) provided by financing activities									(6,143,000)	(2,800,000)	24,079,000
Net (decrease) increase in cash and cash equivalents									(972,000)	(80,000)	(3,676,000)
Cash and cash equivalents at the beginning of the period				$ 1,099,000				$ 1,179,000	1,099,000	1,179,000	4,855,000
Cash and cash equivalents at the end of the period	$ 127,000				$ 1,099,000				$ 127,000	$ 1,099,000	$ 1,179,000

Condensed Quarterly Earnings (D

Condensed Quarterly Earnings (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Interest income	$ 20,321	$ 18,898	$ 19,555	$ 19,343	$ 18,600	$ 18,135	$ 17,520	$ 18,216	$ 78,117	$ 72,471	$ 57,701
Interest expense	3,568	3,603	3,814	3,804	3,688	3,525	3,332	3,286	14,789	13,831	11,571
Net interest income	16,753	15,295	15,741	15,539	14,912	14,610	14,188	14,930	63,328	58,640	46,130
Provision for loan and lease losses	994	3,537	2,762	525	1,895	287	520	684	(7,818)	(3,386)	(1,236)
Non-interest income	3,931	3,640	5,823	4,594	4,935	4,102	4,126	3,848	17,988	17,011	10,103
Non-interest expense	14,523	15,753	13,458	12,699	11,684	11,984	11,974	11,732	56,433	47,374	33,775
Income before income tax expense	5,167	(355)	5,344	6,909	6,268	6,441	5,820	6,362	17,065	24,891	21,222
Income Tax Expense (Benefit)	1,199	(3,020)	1,621	2,356	2,185	2,060	1,962	2,170	(2,156)	(8,377)	(7,083)
Net income	$ 3,968	$ 2,665	$ 3,723	$ 4,553	$ 4,083	$ 4,381	$ 3,858	$ 4,192	$ 14,909	$ 16,514	$ 14,139
Basic earnings per common share	$ 0.46	$ 0.31	$ 0.43	$ 0.52	$ 0.47	$ 0.50	$ 0.45	$ 0.48	$ 1.71	$ 1.90	$ 1.76
Diluted earnings per common share	0.46	0.31	0.43	0.52	0.47	0.50	0.45	0.48	1.71	1.90	1.75
Dividends declared per share	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.11	$ 0.11	$ 0.11	$ 0.11	$ 0.48	$ 0.44	$ 0.42