First Internet Bancorp (INBK) 10-K 8 Mar 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Mar. 05, 2018	Jun. 30, 2017
Document And Entity Information [Abstract]
Entity Registrant Name	First Internet Bancorp
Entity Central Index Key	1,562,463
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Trading Symbol	INBK
Entity Common Stock, Shares Outstanding		8,422,371
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Document Fiscal Period Focus (Q1,Q2,Q3,FY)	FY
Document Fiscal Year Focus	2,017
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Public Float			$ 170.6

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Assets
Cash and due from banks	$ 4,539	$ 2,282
Interest-bearing demand deposits	43,442	37,170
Total cash and cash equivalents	47,981	39,452
Interest-bearing time deposits	0	250
Securities available-for-sale - at fair value (amortized cost of $481,357 in 2017 and $471,070 in 2016)	473,275	456,700
Securities held-to-maturity - at amortized cost (fair value of $19,083 in 2017 and $16,197 in 2016)	19,209	16,671
Loans held-for-sale (includes $23,571 in 2017 and $27,101 in 2016 at fair value)	51,407	27,101
Loans	2,091,193	1,250,789
Allowance for loan losses	(14,970)	(10,981)
Net loans	2,076,223	1,239,808
Accrued interest receivable	11,944	6,708
Federal Home Loan Bank of Indianapolis stock	19,575	8,910
Cash surrender value of bank-owned life insurance	35,105	24,195
Premises and equipment, net	10,058	10,044
Goodwill	4,687	4,687
Other real estate owned	5,041	4,533
Accrued income and other assets	13,182	15,276
Total assets	2,767,687	1,854,335
Liabilities
Noninterest-bearing deposits	44,686	31,166
Interest-bearing deposits	2,040,255	1,431,701
Total deposits	2,084,941	1,462,867
Advances from Federal Home Loan Bank	410,176	189,981
Subordinated debt, net of unamortized discounts and debt issuance costs of $1,274 in 2017 and $1,422 in 2016	36,726	36,578
Accrued interest payable	311	112
Accrued expenses and other liabilities	11,406	10,855
Total liabilities	2,543,560	1,700,393
Commitments and Contingencies
Shareholders’ equity
Preferred stock, no par value; 4,913,779 shares authorized; issued and outstanding - none	0	0
Retained earnings	57,103	43,704
Accumulated other comprehensive loss	(5,019)	(9,268)
Total shareholders’ equity	224,127	153,942
Total liabilities and shareholders’ equity	2,767,687	1,854,335
Voting Common Stock
Shareholders’ equity
Voting and nonvoting common stock	172,043	119,506
Nonvoting Common Stock
Shareholders’ equity
Voting and nonvoting common stock	$ 0	$ 0

Consolidated Balance Sheets _Pa

Consolidated Balance Sheets [Parenthetical] - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Amortized cost, at fair value	$ 481,357	$ 471,070
Held-to-maturity securities, fair value	19,083	16,197
Loans held-for-sale, Fair Value	23,571	27,101
Unamortized discounts and debt issuance costs	$ 1,274	$ 1,422
Preferred Stock, Par or Stated Value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in shares)	4,913,779	4,913,779
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Voting Common Stock
Common Stock, Par or Stated Value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	45,000,000	45,000,000
Common stock, shares issued (in shares)	8,411,077	6,478,050
Common stock, shares outstanding (in shares)	8,411,077	6,478,050
Nonvoting Common Stock
Common Stock, Par or Stated Value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	86,221	86,221
Common stock, shares issued (in shares)	0	0
Common stock, shares outstanding (in shares)	0	0

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest income
Loans	$ 70,465	$ 49,054	$ 37,049
Securities – taxable	10,036	7,326	3,728
Securities – non-taxable	2,786	1,856	312
Other earning assets	1,410	663	358
Total interest income	84,697	58,899	41,447
Interest expense
Deposits	23,975	15,853	8,755
Other borrowed funds	6,740	3,357	1,939
Total interest expense	30,715	19,210	10,694
Net interest income	53,982	39,689	30,753
Provision for loan losses	4,872	4,330	1,946
Net interest income after provision for loan losses	49,110	35,359	28,807
Noninterest income
Service charges and fees	888	818	764
Mortgage banking activities	7,836	12,398	9,000
Gain on sale of loans	395	0	0
Gain (loss) on sale of securities	(8)	177	0
Other	1,430	684	377
Total noninterest income	10,541	14,077	10,141
Noninterest expense
Salaries and employee benefits	21,164	17,387	14,271
Marketing, advertising and promotion	2,393	1,823	1,756
Consulting and professional fees	3,091	3,143	2,374
Data processing	971	1,127	1,016
Loan expenses	1,027	891	631
Premises and equipment	4,183	3,699	2,768
Deposit insurance premium	1,410	1,159	643
Other	2,484	2,222	1,824
Total noninterest expense	36,723	31,451	25,283
Income before income taxes	22,928	17,985	13,665
Income tax provision	7,702	5,911	4,736
Net income	$ 15,226	$ 12,074	$ 8,929
Income Per Share of Common Stock (in dollars per share)
Basic (in dollars per share)	$ 2.14	$ 2.32	$ 1.97
Diluted (in dollars per share)	$ 2.13	$ 2.30	$ 1.96
Weighted-average number of common shares outstanding
Basic (shares)	7,118,628	5,211,209	4,528,528
Diluted (shares)	7,149,302	5,239,082	4,554,219
Dividends Declared Per Share (in dollars per share)	$ 0.24	$ 0.24	$ 0.24

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 3,498	$ 4,895	$ 4,001	$ 2,832	$ 3,710	$ 3,098	$ 2,834	$ 2,432	$ 15,226	$ 12,074	$ 8,929
Other comprehensive income (loss)
Net unrealized holding gains (losses) on securities available-for-sale									6,280	(12,315)	(1,669)
Reclassification adjustment for losses (gains) realized									8	(177)	0
Other comprehensive income (loss) before tax									6,288	(12,492)	(1,669)
Income tax provision (benefit)									2,039	(4,433)	(595)
Other comprehensive income (loss) - net of tax									4,249	(8,059)	(1,074)
Comprehensive income									$ 19,475	$ 4,015	$ 7,855

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common StockVoting and Nonvoting Common Stock	Retained Earnings	Accumulated Other Comprehensive Loss
Balance at Dec. 31, 2014	$ 96,785	$ 71,774	$ 25,146	$ (135)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,929		8,929
Other comprehensive income (loss)	(1,074)			(1,074)
Cash dividends declared	(1,095)		(1,095)
Recognition of the fair value of share-based compensation	762	762
Deferred stock rights and restricted stock units issued in lieu of cash dividends payable on outstanding deferred stock rights and restricted stock units	25	25
Excess tax benefit on share-based compensation	36	36
Common stock redeemed for the net settlement of share-based awards	(38)	(38)
Balance at Dec. 31, 2015	104,330	72,559	32,980	(1,209)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	12,074		12,074
Other comprehensive income (loss)	(8,059)			(8,059)
Cash dividends declared	(1,350)		(1,350)
Net cash proceeds from common stock issuance	46,223	46,223
Recognition of the fair value of share-based compensation	736	736
Deferred stock rights and restricted stock units issued in lieu of cash dividends payable on outstanding deferred stock rights and restricted stock units	30	30
Excess tax benefit on share-based compensation	49	49
Common stock redeemed for the net settlement of share-based awards	(91)	(91)
Balance at Dec. 31, 2016	153,942	119,506	43,704	(9,268)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	15,226		15,226
Other comprehensive income (loss)	4,249			4,249
Cash dividends declared	(1,827)		(1,827)
Net cash proceeds from common stock issuance	51,636	51,636
Recognition of the fair value of share-based compensation	1,038	1,038
Deferred stock rights and restricted stock units issued in lieu of cash dividends payable on outstanding deferred stock rights and restricted stock units	36	36
Common stock redeemed for the net settlement of share-based awards	(173)	(173)
Balance at Dec. 31, 2017	$ 224,127	$ 172,043	$ 57,103	$ (5,019)

Consolidated Statements of Sha7

Consolidated Statements of Shareholders' Equity [Parenthetical] - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 0.24	$ 0.24	$ 0.24

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating activities
Net income	$ 15,226	$ 12,074	$ 8,929
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,299	3,799	1,942
Increase in cash surrender value of bank-owned life insurance	(910)	(468)	(402)
Provision for loan losses	4,872	4,330	1,946
Share-based compensation expense	1,038	736	762
Loss (gain) from sale of available-for-sale securities	8	(177)	0
Loans originated for sale	(412,925)	(598,439)	(502,716)
Proceeds from sale of loans originated for sale	425,262	619,818	509,373
Gain on sale of loans	(8,170)	(12,462)	(8,845)
Decrease (increase) in fair value of loans held-for-sale	(638)	500	341
Loss (gain) on derivatives	577	(436)	(496)
Deferred income tax	(3,296)	3,544	443
Net change in other assets	(2,273)	(7,390)	(1,227)
Net change in other liabilities	554	1,041	858
Net cash provided by operating activities	24,624	26,470	10,908
Investing activities
Net loan activity, excluding sales and purchases	(870,181)	(247,957)	(220,828)
Net change in interest-bearing deposits	250	750	1,000
Bank owned life insurance purchased	(10,000)	(11,000)	0
Proceeds from sales of other real estate owned	30	0	0
Net proceeds from sale of portfolio loans	67,696	0	0
Maturities of securities available-for-sale	68,342	42,616	21,759
Proceeds from sale of securities available-for-sale	9,192	49,430	0
Purchase of securities available-for-sale	(91,463)	(349,683)	(100,335)
Purchase of securities held-to-maturity	(2,550)	(16,672)	0
Purchase of Federal Home Loan Bank of Indianapolis stock	(10,665)	(315)	(3,245)
Purchase of premises and equipment	(1,517)	(3,173)	(2,543)
Loans purchased	(67,285)	(50,718)	0
Net cash used in investing activities	(908,151)	(586,722)	(304,192)
Financing activities
Net increase in deposits	622,074	506,813	197,456
Cash dividends paid	(1,675)	(1,199)	(1,093)
Net proceeds from issuance of subordinated debt	0	23,757	9,761
Net proceeds from common stock issuance	51,636	46,223	0
Proceeds from advances from Federal Home Loan Bank	542,000	157,000	300,000
Repayment of advances from Federal Home Loan Bank	(321,806)	(158,000)	(216,000)
Other, net	(173)	(42)	23
Net cash provided by financing activities	892,056	574,552	290,147
Net increase (decrease) in cash and cash equivalents	8,529	14,300	(3,137)
Cash and cash equivalents, beginning of year	39,452	25,152	28,289
Cash and cash equivalents, end of year	47,981	39,452	25,152
Supplemental disclosures of cash flows information
Cash paid during the year for interest	30,516	19,215	10,674
Cash paid during the year for taxes	6,568	5,894	3,793
Loans transferred to other real estate owned	648	45	0
Loans transferred to held-for-sale from portfolio	95,531	0	0
Cash dividends declared, not paid	504	388	267
Capital committed to Small Business Investment Company fund, not contributed	$ 0	$ 4,000	$ 0

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	Basis of Presentation and Summary of Significant Accounting Policies The accounting policies of First Internet Bancorp and its subsidiaries (the “Company”) conform to accounting principles generally accepted in the United States of America (“GAAP”). A summary of the Company’s significant accounting policies follows: Description of Business The Company was incorporated on September 15, 2005 , and consummated a plan of exchange on March 21, 2006, by which the Company became a bank holding company and 100% owner of First Internet Bank of Indiana (the “Bank”). The Bank provides commercial and retail banking services, with operations conducted on the Internet at www.firstib.com and primarily through its corporate office located in Fishers, Indiana as well as a loan production office in Tempe, Arizona. The majority of the Bank’s income is derived from commercial lending, retail lending, and mortgage banking activities. The Bank is subject to competition from other financial institutions. The Bank is regulated by certain state and federal agencies and undergoes periodic examinations by those regulatory authorities. JKH Realty Services, LLC was established August 20, 2012 as a single member LLC wholly-owned by the Bank to manage other real estate owned properties as needed. First Internet Public Finance Corp., a wholly-owned subsidiary of the Bank, was incorporated on March 6, 2017 and was established to provide municipal finance lending and leasing products to government entities and to purchase, manage, service, and safekeep municipal securities. Principles of Consolidation The consolidated financial statements include the accounts of the Company and its direct and indirect subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation. The Company’s business activities are currently limited to one reporting unit and reportable segment, which is commercial banking. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The Company utilizes processes that involve the use of significant estimates and the judgment of management in determining the amount of the Company’s allowance for loan losses and income taxes and valuation and impairments of investment securities and goodwill, as well as fair value measurements of derivatives and loans held-for-sale. Actual results could differ from those estimates. Securities The Company classifies its securities in one of three categories and accounts for the investments as follows: • Securities that the Company has the positive intent and ability to hold to maturity are classified as “held-to-maturity” and reported at amortized cost. • Securities that are acquired and held principally for the purpose of selling them in the near term with the objective of generating economic profits on short-term differences in market characteristics are classified as “trading securities” and reported at fair value, with unrealized gains and losses included in earnings. The Company had no securities classified as “trading securities” at December 31, 2017 or 2016 . • Securities not classified as either “held-to-maturity” or “trading securities” are classified as “securities available-for-sale” and reported at fair value, with unrealized gains and losses, after applicable taxes, excluded from earnings and reported in a separate component of shareholders’ equity. Declines in the value of debt securities and marketable equity securities that are considered to be other-than-temporary are recorded as an other-than-temporary impairment of securities available-for-sale with other-than-temporary impairment losses recorded in the consolidated statements of income. Interest and dividend income, adjusted by amortization of premium or discount, is included in earnings using the effective interest rate method. Purchases and sales of securities are recorded in the consolidated balance sheets on the trade date. Gains and losses from security sales or disposals are recognized as of the trade date in the consolidated statements of income for the period in which securities are sold or otherwise disposed of. Gains and losses on sales of securities are determined using the specific-identification method. Loans Held-for-Sale Loans originated and intended for sale in the secondary market under best-efforts pricing agreements are carried at the lower of cost or fair value in the aggregate. Net unrealized losses, if any, are recognized through a valuation allowance by charges to noninterest income. Loans originated and intended for sale in the secondary market under mandatory pricing agreements are carried at fair value to facilitate hedging of the loans. Gains and losses resulting from changes in fair value are included in noninterest income. Gains and losses on loan sales are recorded in noninterest income, and direct loan origination costs and fees are deferred at origination of the loan and are recognized in noninterest income upon sale of the loan. Revenue Recognition Interest income on loans is accrued as earned using the interest method based on unpaid principal balances except for interest on loans in nonaccrual status. Interest on loans in nonaccrual status is recorded as a reduction of loan principal when received. Premiums and discounts are amortized using the effective interest rate method. Loan fees, net of certain direct origination costs, primarily salaries and wages, are deferred and amortized to interest income as a yield adjustment over the life of the loan. Loans Loans that management intends to hold until maturity are reported at their outstanding principal balance adjusted for unearned income, charge-offs, the allowance for loan losses (“ALLL”), any unamortized deferred fees or costs on originated loans, and unamortized premiums or discounts on purchased loans. For loans recorded at cost, interest income is accrued based on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, as well as premiums and discounts, are deferred and amortized as a level yield adjustment over the respective term of the loan. Allowance for Loan Losses Methodology Company policy is designed to maintain an adequate ALLL. Primary responsibility for ensuring that the Company has processes in place to consistently assess the adequacy of the ALLL rests with the Board of Directors (the “Board”). The Board has charged management with responsibility for establishing the methodology to be used and to assess the adequacy of the ALLL. The Board reviews recommendations from management on a quarterly basis to adjust the allowance as appropriate. The methodology employed by management for each portfolio segment, at a minimum, contains the following: 1. Loans are segmented by type of loan. 2. The required ALLL for types of performing homogeneous loans which do not have a specific reserve is determined by applying a factor based on historical losses averaged over the past sixteen quarters. In those instances where the Company’s historical experience is not available, management develops factors based on industry experience and best practices. 3. All criticized, classified and impaired loans are tested for impairment by applying one of three methodologies: a. Present value of future cash flows; b. Fair value of collateral less costs to sell; or c. The loan’s observable market price 4. All troubled debt restructurings (“TDR”) are considered impaired loans. 5. Loans tested for impairment are removed from other pools to prevent layering (double-counting). 6. The required ALLL for each group of loans are added together to determine the total required ALLL for the Company. The required ALLL is compared to the existing ALLL to determine the provision required to increase the ALLL or credit to decrease the ALLL. The historical loss experience is determined by portfolio segment and considers two weighted average net charge-off trends: 1) the Company’s average loss history over the previous sixteen quarters; and 2) the average loss history over the previous sixteen quarters for a peer group. Management believes the historical loss experience methodology is appropriate in the current economic environment, as it captures loss rates that are comparable to the current period being analyzed. The Company also factors in the following qualitative considerations: 1. Changes in policies and procedures; 2. Changes in national, regional, and local economic and business conditions; 3. Changes in the composition and size of the portfolio and in the terms of loans; 4. Changes in the experience, ability, and depth of lending management and other relevant staff; 5. Changes in the volume and severity of past due loans, the volume of nonaccrual loans, and the volume and severity of adversely classified or graded loans; 6. Changes in the quality of the Company’s loan review system; 7. Changes in the value of underlying collateral for collateral-dependent loans; 8. The existence and effect of any concentration of credit and changes in the level of such concentrations; and 9. The effect of other external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in the existing portfolio. Provision for Loan Losses A provision for estimated losses on loans is charged to income based upon management’s evaluation of the potential losses. Such an evaluation, which includes a review of all loans for which full repayment may not be reasonably assured, considers, among other matters, the estimated net realizable value of the underlying collateral, as applicable, economic conditions, loan loss experience, and other factors that are particularly susceptible to changes that could result in a material adjustment in the near term. While management attempts to use the best information available in making its evaluations, future allowance adjustments may be necessary if economic conditions change substantially from the assumptions used in making the evaluations. Nonaccrual Loans Any loan which becomes 90 days delinquent or for which the full collection of principal and interest may be in doubt will be considered for nonaccrual status. At the time a loan is placed on nonaccrual status, all accrued but unpaid interest will be reversed from interest income. Placing the loan on nonaccrual status does not relieve the borrower of the obligation to repay interest. A loan placed on nonaccrual status may be restored to accrual status when all delinquent principal and interest has been brought current, and the Company expects full payment of the remaining contractual principal and interest. Impaired Loans A loan is designated as impaired, in accordance with the impairment accounting guidance when, based on current information or events, it is probable that the Company will be unable to collect all amounts due (principal and interest) according to the contractual terms of the loan agreement. Payments with delays generally not exceeding 90 days outstanding are not considered impaired. Certain nonaccrual and substantially all delinquent loans more than 90 days past due may be considered to be impaired. Generally, loans are placed on nonaccrual status at 90 days past due and accrued interest is reversed against earnings, unless the loan is well-secured and in the process of collection. The accrual of interest on impaired and nonaccrual loans is discontinued when, in management’s opinion, the borrower may be unable to meet payments as they become due. Impaired loans include nonperforming loans but also include loans modified in troubled debt restructurings where concessions have been granted to borrowers experiencing financial difficulties. These concessions could include a reduction in the interest rate on the loan, payment extensions, forgiveness of principal, forbearance, or other actions intended to maximize collection. Accounting Standards Codification (“ASC”) Topic 310, Receivables , requires that impaired loans be measured based on the present value of expected future cash flows discounted at the loans’ effective interest rates or the fair value of the underlying collateral, less costs to sell, and allows existing methods for recognizing interest income. Troubled Debt Restructurings (“TDR”) The loan portfolio includes certain loans that have been modified in a TDR, where economic concessions have been granted to borrowers who have experienced financial difficulties. These concessions typically result from loss mitigation efforts and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. Certain TDRs are classified as nonperforming at the time of restructuring and typically are returned to performing status after considering the borrower’s sustained repayment performance for a reasonable period, generally not less than six months. When loans are modified in a TDR, any possible impairment similar to other impaired loans is evaluated based on either the present value of expected future cash flows, discounted at the contractual interest rate of the original loan agreement, or the current fair value of the collateral, less selling costs for collateral dependent loans. If it is determined that the value of the modified loan is less than the recorded balance of the loan, impairment is recognized through a specific ALLL or charge-off to the ALLL. In periods subsequent to modification, all TDRs, including those that have payment defaults, are evaluated for possible impairment, and impairment is recognized through the ALLL. Policy for Charging Off Loans The Company’s policy is to charge off a loan at any point in time when it no longer can be considered a bankable asset, meaning collectible within the parameters of policy. A secured loan is generally charged down to the estimated fair value of the collateral, less costs to sell, no later than when it is 120 days past due as to principal or interest. An unsecured loan generally is charged off no later than when it is 180 days past due as to principal or interest. A home improvement loan generally is charged off no later than when it is 90 days past due as to principal or interest. Federal Home Loan Bank (“FHLB”) of Indianapolis Stock Federal law requires a member institution of the FHLB system to hold common stock of its district FHLB according to a predetermined formula. This investment is stated at cost, which represents redemption value, and may be pledged as collateral for FHLB advances. Premises and Equipment Premises and equipment is stated at cost, less accumulated depreciation. Depreciation is computed on the straight-line method over the estimated useful lives, which range from three to five years for software and equipment, ten years for land improvements, and 39 years for buildings. Other Real Estate Owned Other real estate owned represents real estate acquired through foreclosure or deed in lieu of foreclosure and is recorded at its fair value less estimated costs to sell. When property is acquired, it is recorded at its fair value at the date of acquisition with any resulting write-down charged against the ALLL. Any subsequent deterioration of the property is charged directly to operating expense. Costs relating to the development and improvement of other real estate owned are capitalized, whereas costs relating to holding and maintaining the property are charged to expense as incurred. Derivative Financial Instruments The Company uses derivative financial instruments to help manage exposure to interest rate risk and the effects that changes in interest rates may have on net income and the fair value of assets and liabilities. The Company enters into interest rate swap agreements as part of its asset liability management strategy to help manage its interest rate risk position. Additionally, the Company enters into forward contracts for the future delivery of mortgage loans to third party investors and enters into interest rate lock commitments ("IRLCs") with potential borrowers to fund specific mortgage loans that will be sold into the secondary market. The forward contracts are entered into in order to economically hedge the effect of changes in interest rates resulting from the Company’s commitment to fund the loans. Designating an interest rate swap as an accounting hedge allows the Company to recognize gains and losses, less any ineffectiveness, in the income statement within the same period that the hedged item affects earnings. The Company includes the gain or loss on the hedged items in the same line item as the offsetting loss or gain on the related interest rate swaps. The fair value of interest rate swaps with a positive fair value are reported in accrued income and other assets in the consolidated balance sheets while interest rate swaps with a negative fair value are reported in accrued expenses and other liabilities in the consolidated balance sheets. The IRLCs and forward contracts are not designated as accounting hedges, and are recorded at fair value with changes in fair value reflected in noninterest income on the consolidated statements of income. The fair value of derivative instruments with a positive fair value are reported in accrued income and other assets in the consolidated balance sheets while derivative instruments with a negative fair value are reported in accrued expenses and other liabilities in the consolidated balance sheets. Fair Value Measurements The Company records or discloses certain assets and liabilities at fair value. ASC Topic 820, Fair Value Measurements , defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements are classified within one of three levels in a valuation hierarchy. ASC Topic 820 describes three levels of inputs that may be used to measure fair value: Level 1 Quoted prices in active markets for identical assets or liabilities Level 2 Observable inputs other than Level 1 prices, 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 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities There were no transfers that occurred and, therefore, recognized, between any of the fair value hierarchy levels at December 31, 2017 or 2016. Income Taxes Deferred income tax assets and liabilities reflect the impact of temporary differences between amounts of assets and liabilities for financial reporting purposes and the basis of such assets and liabilities as measured by tax laws and regulations. Deferred income tax expense or benefit is based upon the change in deferred tax assets and liabilities from period to period, subject to an ongoing assessment of realization of deferred tax assets. Deferred tax assets are reduced by a valuation allowance if, based on the weight of evidence available, it is more likely than not that some portion or all of a deferred tax asset will not be realized. The Company files income tax returns in the U.S. federal, Indiana, and other state jurisdictions. With few exceptions, the Company is no longer subject to U.S. federal, state and local examinations by tax authorities for years before 2014. ASC Topic 740-10, Accounting for Uncertainty in Income Taxes , prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. It also provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. The Company did not identify any material uncertain tax positions that it believes should be recognized in the consolidated financial statements. Earnings Per Share Earnings per share of common stock is based on the weighted-average number of basic shares and dilutive shares outstanding during the year. The following is a reconciliation of the weighted-average common shares for the basic and diluted earnings per share computations. Year Ended December 31, 2017 2016 2015 Basic earnings per share Net income available to common shareholders $ 15,226 $ 12,074 $ 8,929 Weighted-average common shares 7,118,628 5,211,209 4,528,528 Basic earnings per common share $ 2.14 $ 2.32 $ 1.97 Diluted earnings per share Net income available to common shareholders $ 15,226 $ 12,074 $ 8,929 Weighted-average common shares 7,118,628 5,211,209 4,528,528 Dilutive effect of warrants 6,120 11,026 10,665 Dilutive effect of equity compensation 24,554 16,847 15,026 Weighted-average common and incremental shares 7,149,302 5,239,082 4,554,219 Diluted earnings per common share $ 2.13 $ 2.30 $ 1.96 Share-based Compensation The Company has a share-based compensation plan using the fair value recognition provisions of ASC Topic 718, Compensation - Stock Compensation . The plan is described more fully in Note 10. Comprehensive Income Comprehensive income consists of net income and other comprehensive income (loss). Other comprehensive income (loss) includes unrealized gains and losses on securities available-for-sale. Reclassification adjustments have been determined for all components of other comprehensive income or loss reported in the consolidated statements of changes in shareholders’ equity. Statements of Cash Flows Cash and cash equivalents are defined to include cash on-hand, noninterest and interest-bearing amounts due from other banks and federal funds sold. Generally, federal funds are sold for one-day periods. The Company reports net cash flows for customer loan transactions and deposit transactions. Bank-Owned Life Insurance Bank-owned life insurance policies are carried at their cash surrender value. The Company recognizes tax-free income from the periodic increases in the cash surrender value of these policies and from death benefits. Goodwill Goodwill is tested at least annually for impairment. If the implied fair value of goodwill is lower than its carrying amount, goodwill impairment is indicated and goodwill is written down to its implied fair value. Subsequent increases in goodwill value are not recognized in the consolidated financial statements. Reclassifications Certain reclassifications have been made to the 2016 and 2015 financial statements to conform to the 2017 financial statement presentation. These reclassifications had no effect on net income.

Cash and Cash Equivalents

Cash and Cash Equivalents	12 Months Ended
	Dec. 31, 2017
Cash and Cash Equivalents [Abstract]
Cash and Cash Equivalents	Cash and Cash Equivalents At December 31, 2017 , the Company’s interest-bearing and noninterest-bearing cash accounts at other institutions exceeded the limits for full FDIC insurance coverage by $1.6 million . In addition, approximately $ 0.4 million and $ 41.8 million of cash was held by the FHLB of Indianapolis and Federal Reserve Bank of Chicago, respectively, which are not federally insured. The Company is required to maintain reserve funds in cash and/or on deposit with the Federal Reserve Bank. The reserve required at December 31, 2017 was $ 1.0 million .

Securities

Securities	12 Months Ended
	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Securities	Securities The following tables summarize securities available-for-sale and securities held-to-maturity as of December 31, 2017 and 2016 . There were no securities held-to-maturity as of December 31, 2016 . December 31, 2017 Amortized Gross Unrealized Fair Cost Gains Losses Value Securities available-for-sale U.S. Government-sponsored agencies $ 133,424 $ 531 $ (765 ) $ 133,190 Municipal securities 97,370 366 (1,359 ) 96,377 Mortgage-backed securities 215,452 15 (5,747 ) 209,720 Asset-backed securities 5,000 9 — 5,009 Corporate securities 27,111 103 (1,167 ) 26,047 Other securities 3,000 — (68 ) 2,932 Total available-for-sale $ 481,357 $ 1,024 $ (9,106 ) $ 473,275 December 31, 2017 Amortized Gross Unrealized Fair Cost Gains Losses Value Securities held-to-maturity Municipal securities $ 10,164 $ 40 $ (357 ) $ 9,847 Corporate securities 9,045 191 — 9,236 Total held-to-maturity $ 19,209 $ 231 $ (357 ) $ 19,083 December 31, 2016 Amortized Gross Unrealized Fair Cost Gains Losses Value Securities available-for-sale U.S. Government-sponsored agencies $ 92,599 $ 167 $ (870 ) $ 91,896 Municipal securities 97,647 85 (5,846 ) 91,886 Mortgage-backed securities 238,354 — (6,713 ) 231,641 Asset-backed securities 19,470 65 (1 ) 19,534 Corporate securities 20,000 — (1,189 ) 18,811 Other securities 3,000 — (68 ) 2,932 Total available-for-sale $ 471,070 $ 317 $ (14,687 ) $ 456,700 December 31, 2016 Amortized Gross Unrealized Fair Cost Gains Losses Value Securities held-to-maturity Municipal securities $ 10,171 $ — $ (498 ) $ 9,673 Corporate securities 6,500 24 — 6,524 Total held-to-maturity $ 16,671 $ 24 $ (498 ) $ 16,197 The carrying value of securities at December 31, 2017 is shown below by their contractual maturity date. Actual maturities will differ because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Available-for-Sale Amortized Fair Within one year $ — $ — One to five years 826 791 Five to ten years 35,981 35,214 After ten years 221,098 219,609 257,905 255,614 Mortgage-backed securities 215,452 209,720 Asset-backed securities 5,000 5,009 Other securities 3,000 2,932 Total $ 481,357 $ 473,275 Held-to-Maturity Amortized Cost Fair Value Five to ten years $ 12,442 $ 12,487 After ten years 6,767 6,596 Total $ 19,209 $ 19,083 Gross realized gains of $0.0 million , $0.2 million , and $0.0 million and gross realized losses of $0.0 million , $0.0 million , and $0.0 million resulting from sales of available-for-sale securities were recognized during the twelve months ended December 31, 2017 , 2016 , and 2015 , respectively. As of December 31, 2017 , the fair value of available-for-sale investment securities pledged as collateral was $460.1 million . The Company pledged the securities for various types of transactions, including FHLB advances, derivative financial instruments and to collateralize municipal deposits. Certain investments in debt securities are reported in the consolidated financial statements at an amount less than their historical cost. Total fair value of these investments at December 31, 2017 and 2016 was $354.6 million and $422.9 million , which is approximately 72% and 89% , respectively, of the Company’s available-for-sale and held-to-maturity securities portfolio. These declines primarily resulted from fluctuations in market interest rates after purchase. Management believes the declines in fair value for these securities are temporary. Should the impairment of any of these securities become other than temporary, the cost basis of the investment will be reduced with the resulting loss recognized in net income in the period the other-than-temporary impairment (“OTTI”) is identified. U.S. Government-Sponsored Agencies, Municipal Securities, and Corporate Securities The unrealized losses on the Company’s investments in securities issued by U.S. Government-sponsored agencies, municipal organizations and corporate entities were caused by interest rate changes. The contractual terms of those investments do not permit the issuer to settle the securities at a price less than the amortized cost bases of the investments. Because the Company does not intend to sell the investments and it is not likely that the Company will be required to sell the investments before recovery of their amortized cost bases, which may be maturity, the Company does not consider those investments to be other-than-temporarily impaired at December 31, 2017 . Mortgage-Backed and Asset-Backed Securities The unrealized losses on the Company’s investments in mortgage-backed and asset-backed securities were caused by interest rate changes. The Company expects to recover the amortized cost bases over the term of the securities. Because the Company does not intend to sell the investments and it is not likely that the Company will be required to sell the investments before recovery of their amortized cost bases, which may be maturity, the Company does not consider those investments to be other-than-temporarily impaired at December 31, 2017 . Other Securities The unrealized losses on the Company’s investments in other securities were caused by the investment in the Community Reinvestment Act Qualified Fund. Because the Company does not intend to sell the investment and it is not likely that the Company will be required to sell the investment before recovery of its amortized cost basis, the Company does not consider this investment to be other-than-temporarily impaired at December 31, 2017 . The following tables show the securities portfolio’s gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2017 and 2016 : December 31, 2017 Less Than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Securities available-for-sale U.S. Government-sponsored agencies $ 30,194 $ (256 ) $ 22,824 $ (509 ) $ 53,018 $ (765 ) Municipal securities 5,638 (77 ) 57,128 (1,282 ) 62,766 (1,359 ) Mortgage-backed securities 29,542 (251 ) 177,266 (5,496 ) 206,808 (5,747 ) Corporate securities 1,852 (148 ) 18,981 (1,019 ) 20,833 (1,167 ) Other securities — — 2,932 (68 ) 2,932 (68 ) Total $ 67,226 $ (732 ) $ 279,131 $ (8,374 ) $ 346,357 $ (9,106 ) December 31, 2017 Less Than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Securities held-to-maturity Municipal securities $ 8,255 $ (357 ) $ — $ — $ 8,255 $ (357 ) Total $ 8,255 $ (357 ) $ — $ — $ 8,255 $ (357 ) December 31, 2016 Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Securities available-for-sale U.S. Government-sponsored agencies $ 68,625 $ (840 ) $ 260 $ (30 ) $ 68,885 $ (870 ) Municipals 86,424 (5,846 ) — — 86,424 (5,846 ) Mortgage-backed securities 231,641 (6,713 ) — — 231,641 (6,713 ) Asset-backed securities — — 4,520 (1 ) 4,520 (1 ) Corporate securities — — 18,811 (1,189 ) 18,811 (1,189 ) Other securities 2,932 (68 ) — — 2,932 (68 ) Total $ 389,622 $ (13,467 ) $ 23,591 $ (1,220 ) $ 413,213 $ (14,687 ) December 31, 2016 Less Than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Securities held-to-maturity Municipal securities $ 9,673 $ (498 ) $ — $ — $ 9,673 $ (498 ) Total $ 9,673 $ (498 ) $ — $ — $ 9,673 $ (498 ) Amounts reclassified from accumulated other comprehensive loss and the affected line items in the consolidated statements of income during the years ended December 31, 2017 , 2016 and 2015 were as follows: Details About Accumulated Other Comprehensive Loss Components Amounts Reclassified from Accumulated Other Comprehensive Loss for the Year Ended December 31, Affected Line Item in the Statements of Income 2017 2016 2015 Unrealized gains and losses on securities available-for-sale Gain (loss) realized in earnings $ (8 ) $ 177 $ — Gain (loss) on sale of securities Total reclassified amount before tax (8 ) 177 — Income before income taxes Tax expense (benefit) (3 ) 63 — Income tax provision Total reclassifications out of accumulated other comprehensive loss $ (5 ) $ 114 $ — Net Income

Loans

Loans	12 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
Loans	Loans Categories of loans include: December 31, 2017 2016 Commercial loans Commercial and industrial $ 122,940 $ 102,437 Owner-occupied commercial real estate 75,768 57,668 Investor commercial real estate 7,273 13,181 Construction 49,213 53,291 Single tenant lease financing 803,299 606,568 Public finance 438,341 — Healthcare finance 31,573 — Total commercial loans 1,528,407 833,145 Consumer loans Residential mortgage 299,935 205,554 Home equity 30,554 35,036 Other consumer 227,533 173,449 Total consumer loans 558,022 414,039 Total commercial and consumer loans 2,086,429 1,247,184 Net deferred loan origination costs and premiums and discounts on purchased loans 4,764 3,605 Total loans 2,091,193 1,250,789 Allowance for loan losses (14,970 ) (10,981 ) Net loans $ 2,076,223 $ 1,239,808 The risk characteristics of each loan portfolio segment are as follows: Commercial and Industrial: Commercial and industrial loans’ sources of repayment are primarily based on the identified cash flows of the borrower and secondarily on the underlying collateral provided by the borrower. The cash flows of borrowers, however, may not be as expected, and the collateral securing these loans may fluctuate in value. Loans are made for working capital, equipment purchases, or other purposes. Most commercial and industrial loans are secured by the assets being financed and may incorporate a personal guarantee. This portfolio segment is generally concentrated in Central Indiana and adjacent markets and the greater Phoenix, Arizona market. Owner-Occupied Commercial Real Estate: The primary source of repayment is the cash flow from the ongoing operations and activities conducted by the borrower, or an affiliate of the borrower, who owns the property. This portfolio segment is generally concentrated in Central Indiana and adjacent markets and the greater Phoenix, Arizona market and its loans are often secured by manufacturing and service facilities, as well as office buildings. Investor Commercial Real Estate: These loans are underwritten primarily based on the cash flow expected to be generated from the property and are secondarily supported by the value of the real estate. These loans typically incorporate a personal guarantee from the primary sponsor or sponsors. This portfolio segment generally involves larger loan amounts with repayment primarily dependent on the successful leasing and operation of the property securing the loan or the business conducted on the property securing the loan. Investor commercial real estate loans may be more adversely affected by changing economic conditions in the real estate markets, industry dynamics or the overall health of the local economy where the property is located. The properties securing the Company’s investor commercial real estate portfolio tend to be diverse in terms of property type and are ideally located in the state of Indiana or markets immediately adjacent to Indiana. Management monitors and evaluates commercial real estate loans based on property financial performance, collateral value, guarantor strength, economic and industry conditions together with other risk grade criteria. As a general rule, the Company avoids financing special use projects or properties outside of its designated market areas unless other underwriting factors are present to mitigate these additional risks. Construction: Construction loans are secured by land and related improvements and are made to assist in the construction of new structures, which may include commercial (retail, industrial, office, multi-family) properties or single family residential properties offered for sale by the builder. These loans generally finance a variety of project costs, including land, site preparation, architectural services, construction, closing and soft costs and interim financing needs. The cash flows of builders, while initially predictable, may fluctuate with market conditions, and the value of the collateral securing these loans may be subject to fluctuations based on general economic changes. This portfolio segment is generally concentrated in Central Indiana. Single Tenant Lease Financing: These loans are made on a nationwide basis to property owners of real estate subject to long term lease arrangements with single tenant operators. The real estate is typically operated by regionally, nationally or globally branded businesses. The loans are underwritten based on the financial strength of the borrower, characteristics of the real estate, cash flows generated from the lease arrangements and the financial strength of the tenant. Similar to the other loan portfolio segments, management monitors and evaluates these loans based on borrower and tenant financial performance, collateral value, industry trends and other risk grade criteria. Public Finance: These loans are made to governmental and not-for-profit entities to provide both tax-exempt and taxable loans for a variety of purposes including: short term cash-flow needs; debt refinancing; economic development; quality of life projects; infrastructure improvements; and equipment financing. The primary sources of repayment for public finance loans include pledged revenue sources including but not limited to: general obligations; property taxes; income taxes; tax increment revenue; utility revenue; gaming revenues; sales tax; and pledged general revenue. Certain loans may also include an additional collateral pledge of mortgaged property or a security interest in financed equipment. Public finance loans have been completed in seven states, primarily in the Midwest, with plans to continue expanding nationwide. Healthcare Finance: These loans are made to healthcare providers, primarily dentists, for refinancing or acquiring practices, refinancing or acquiring owner-occupied commercial real estate, and equipment purchases. These loans’ sources of repayment are primarily based on the identified cash flows of the borrower (including ongoing operations and activities conducted by the borrower, or an affiliate of the borrower, who owns the property) and secondarily on the underlying collateral provided by the borrower. This portfolio segment is generally concentrated in the Western United States with plans to expand nationwide. Residential Mortgage: With respect to residential loans that are secured by 1-4 family residences and are generally owner occupied, the Company typically establishes a maximum loan-to-value ratio and requires private mortgage insurance if that ratio is exceeded. Repayment of these loans is primarily dependent on the financial circumstances of the borrowers, which can be impacted by economic conditions in their market areas such as unemployment levels. Repayment can also be impacted by changes in residential property values. Risk is mitigated by the fact that the loans are of smaller individual amounts and spread over a large number of borrowers in geographically diverse locations throughout the country. Home Equity: Home equity loans and lines of credit are typically secured by a subordinate interest in 1-4 family residences. The properties securing the home equity portfolio segment are generally geographically diverse as the Company offers these products on a nationwide basis. Repayment of these loans and lines of credit is primarily dependent on the financial circumstances of the borrowers and may be impacted by changes in unemployment levels and property values on residential properties, among other economic conditions in the market. Other Consumer: These loans primarily consist of consumer loans and credit cards. Consumer loans may be secured by consumer assets such as horse trailers or recreational vehicles. Some consumer loans are unsecured, such as small installment loans, home improvement loans and certain lines of credit. Repayment of consumer loans is primarily dependent upon the personal income of the borrowers, which can be impacted by economic conditions in their market areas such as unemployment levels. Risk is mitigated by the fact that the loans are of smaller individual amounts and spread over a large number of borrowers in geographically diverse locations throughout the country. The following tables present changes in the balance of the allowance for loan losses during the twelve months ended December 31, 2017 , 2016 , and 2015 . Twelve Months Ended December 31, 2017 Balance, beginning of period Provision (credit) charged to expense Losses charged off Recoveries Balance, end of period Allowance for loan losses: Commercial and industrial $ 1,352 $ 588 $ (271 ) $ 69 $ 1,738 Owner-occupied commercial real estate 582 221 — — 803 Investor commercial real estate 168 (83 ) — — 85 Construction 544 (121 ) — — 423 Single tenant lease financing 6,248 1,624 — — 7,872 Public finance — 959 — — 959 Healthcare finance — 313 — — 313 Residential mortgage 754 314 (116 ) 4 956 Home equity 102 (55 ) — 23 70 Other consumer 1,231 1,112 (895 ) 303 1,751 Total $ 10,981 $ 4,872 $ (1,282 ) $ 399 $ 14,970 Twelve Months Ended December 31, 2016 Balance, beginning of period Provision (credit) charged to expense Losses charged off Recoveries Balance, end of period Allowance for loan losses: Commercial and industrial $ 1,367 $ 1,380 $ (1,582 ) $ 187 $ 1,352 Owner-occupied commercial real estate 476 106 — — 582 Investor commercial real estate 212 (44 ) — — 168 Construction 500 44 — — 544 Single tenant lease financing 3,931 2,317 — — 6,248 Residential mortgage 896 (38 ) (134 ) 30 754 Home equity 125 (3 ) (33 ) 13 102 Other consumer 844 568 (440 ) 259 1,231 Total $ 8,351 $ 4,330 $ (2,189 ) $ 489 $ 10,981 Twelve Months Ended December 31, 2015 Balance, beginning of period Provision (credit) charged to expense Losses charged off Recoveries Balance, end of period Allowance for loan losses: Commercial and industrial $ 920 $ 447 $ — $ — $ 1,367 Owner-occupied commercial real estate 345 131 — — 476 Investor commercial real estate 261 (549 ) — 500 212 Construction 330 170 — — 500 Single tenant lease financing 2,061 1,870 — — 3,931 Residential mortgage 985 (311 ) (185 ) 407 896 Home equity 207 (83 ) — 1 125 Other consumer 691 271 (451 ) 333 844 Total $ 5,800 $ 1,946 $ (636 ) $ 1,241 $ 8,351 The following tables present the balance in the allowance for loan losses and the recorded investment in loans based on portfolio segment and impairment method as of December 31, 2017 and 2016 . Loans Allowance for Loan Losses December 31, 2017 Ending Balance: Collectively Evaluated for Impairment Ending Balance: Individually Evaluated for Impairment Ending Balance Ending Balance: Ending Balance: Ending Balance Commercial and industrial $ 119,054 $ 3,886 $ 122,940 $ 1,738 $ — $ 1,738 Owner-occupied commercial real estate 75,761 7 75,768 803 — 803 Investor commercial real estate 7,273 — 7,273 85 — 85 Construction 49,213 — 49,213 423 — 423 Single tenant lease financing 803,299 — 803,299 7,872 — 7,872 Public finance 438,341 — 438,341 959 — 959 Healthcare finance 31,573 — 31,573 313 — 313 Residential mortgage 298,796 1,139 299,935 956 — 956 Home equity 30,471 83 30,554 70 — 70 Other consumer 227,443 90 227,533 1,751 — 1,751 Total $ 2,081,224 $ 5,205 $ 2,086,429 $ 14,970 $ — $ 14,970 Loans Allowance for Loan Losses December 31, 2016 Ending Balance: Collectively Evaluated for Impairment Ending Balance: Individually Evaluated for Impairment Ending Balance Ending Balance: Ending Balance: Ending Balance Commercial and industrial $ 102,437 $ — $ 102,437 $ 1,352 $ — $ 1,352 Owner-occupied commercial real estate 57,668 — 57,668 582 — 582 Investor commercial real estate 13,181 — 13,181 168 — 168 Construction 53,291 — 53,291 544 — 544 Single tenant lease financing 606,568 — 606,568 6,248 — 6,248 Residential mortgage 203,842 1,712 205,554 754 — 754 Home equity 35,036 — 35,036 102 — 102 Other consumer 173,321 128 173,449 1,231 — 1,231 Total $ 1,245,344 $ 1,840 $ 1,247,184 $ 10,981 $ — $ 10,981 The Company utilizes a risk grading matrix to assign a risk grade to each of its commercial loans. A description of the general characteristics of the risk grades is as follows: • “Pass” - Higher quality loans that do not fit any of the other categories described below. • “Special Mention” - Loans that possess some credit deficiency or potential weakness which deserve close attention. • “Substandard” - Loans that possess a defined weakness or weaknesses that jeopardize the liquidation of the debt. Loans characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected. Loans that are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. • “Doubtful” - Such loans have been placed on nonaccrual status and may be heavily dependent upon collateral possessing a value that is difficult to determine or based upon some near-term event which lacks clear certainty. These loans have all of the weaknesses of those classified as Substandard; however, based on existing conditions, these weaknesses make full collection of the principal balance highly improbable. • “Loss” - Loans that are considered uncollectible and of such little value that continuing to carry them as assets is not warranted. The following tables present the credit risk profile of the Company’s commercial and consumer loan portfolios based on rating category and payment activity as of December 31, 2017 and 2016 . December 31, 2017 Pass Special Mention Substandard Total Commercial and industrial $ 113,840 $ 5,203 $ 3,897 $ 122,940 Owner-occupied commercial real estate 72,995 2,766 7 75,768 Investor commercial real estate 7,273 — — 7,273 Construction 49,213 — — 49,213 Single tenant lease financing 796,307 6,992 — 803,299 Public finance 438,341 — — 438,341 Healthcare finance 31,573 — — 31,573 Total commercial loans $ 1,509,542 $ 14,961 $ 3,904 $ 1,528,407 December 31, 2017 Performing Nonaccrual Total Residential mortgage $ 299,211 $ 724 $ 299,935 Home equity 30,471 83 30,554 Other consumer 227,501 32 227,533 Total $ 557,183 $ 839 $ 558,022 December 31, 2016 Pass Special Mention Substandard Total Commercial and industrial $ 99,200 $ 2,746 $ 491 $ 102,437 Owner-occupied commercial real estate 57,657 — 11 57,668 Investor commercial real estate 13,181 — — 13,181 Construction 53,291 — — 53,291 Single tenant lease financing 605,190 1,378 — 606,568 Total commercial loans $ 828,519 $ 4,124 $ 502 $ 833,145 December 31, 2016 Performing Nonaccrual Total Residential mortgage $ 204,530 $ 1,024 $ 205,554 Home equity 35,036 — 35,036 Other consumer 173,390 59 173,449 Total $ 412,956 $ 1,083 $ 414,039 The following tables present the Company’s loan portfolio delinquency analysis as of December 31, 2017 and 2016 . December 31, 2017 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Total Past Due Current Total loans Nonaccrual Loans Total Loans 90 Days or More Past Due and Accruing Commercial and industrial $ — $ 10 $ — $ 10 $ 122,930 $ 122,940 $ — $ — Owner-occupied commercial real estate — — — — 75,768 75,768 — — Investor commercial real estate — — — — 7,273 7,273 — — Construction — — — — 49,213 49,213 — — Single tenant lease financing — — — — 803,299 803,299 — — Public finance — — — — 438,341 438,341 — — Healthcare finance — — — — 31,573 31,573 — — Residential mortgage — 23 560 583 299,352 299,935 724 — Home equity — — 83 83 30,471 30,554 83 — Other consumer 299 110 6 415 227,118 227,533 32 — Total $ 299 $ 143 $ 649 $ 1,091 $ 2,085,338 $ 2,086,429 $ 839 $ — December 31, 2016 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Total Past Due Current Total loans Nonaccrual Loans Total Loans 90 Days or More Past Due and Accruing Commercial and industrial $ 27 $ — $ — $ 27 $ 102,410 $ 102,437 $ — $ — Owner-occupied commercial real estate — — — — 57,668 57,668 — — Investor commercial real estate — — — — 13,181 13,181 — — Construction — — — — 53,291 53,291 — — Single tenant lease financing — — — — 606,568 606,568 — — Residential mortgage — 347 991 1,338 204,216 205,554 1,024 — Home equity — — — — 35,036 35,036 — — Other consumer 173 91 25 289 173,160 173,449 59 — Total $ 200 $ 438 $ 1,016 $ 1,654 $ 1,245,530 $ 1,247,184 $ 1,083 $ — The following tables present the Company’s impaired loans as of December 31, 2017 and 2016 . There were no impaired loans with a specific valuation allowance as of December 31, 2017 and 2016 . December 31, 2017 December 31, 2016 Recorded Unpaid Specific Recorded Unpaid Specific Loans without a specific valuation allowance Commercial and industrial $ 3,886 $ 3,886 $ — $ — $ — $ — Owner-occupied commercial real estate 7 7 — — — — Residential mortgage 1,139 1,144 — 1,712 1,824 — Home equity 83 83 — — — — Other consumer 90 143 — 128 184 — Total impaired loans $ 5,205 $ 5,263 $ — $ 1,840 $ 2,008 $ — The table below presents average balances and interest income recognized for impaired loans during the twelve months ended December 31, 2017 , 2016 , and 2015 . Twelve Months Ended December 31, 2017 December 31, 2016 December 31, 2015 Average Interest Average Interest Average Interest Loans without a specific valuation allowance Commercial and industrial $ 2,942 $ 146 $ — $ — $ — $ — Owner-occupied commercial real estate 3 — — — — — Investor commercial real estate — — — — 21 2 Residential mortgage 1,546 6 1,595 8 1,112 8 Home equity 5 — — — — — Other consumer 105 4 149 5 193 16 Total 4,601 156 1,744 13 1,326 26 Loans with a specific valuation allowance Commercial and industrial 35 — 1,084 — — — Residential mortgage — — — — 15 — Other consumer — — — — 13 1 Total 35 — 1,084 — 28 1 Total impaired loans $ 4,636 $ 156 $ 2,828 $ 13 $ 1,354 $ 27 As of December 31, 2017 and December 31, 2016 , the Company had $0.6 million and less than $0.1 million , respectively, in residential mortgage other real estate owned. There were $0.2 million and $1.0 million of loans at December 31, 2017 and December 31, 2016 , respectively, in the process of foreclosure. Troubled Debt Restructurings (“TDRs”) The loan portfolio includes TDRs, which are loans that have been modified to grant economic concessions to borrowers who have experienced financial difficulties. These concessions typically result from loss mitigation efforts and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance, or other actions. Certain TDRs are classified as nonperforming at the time of restructuring and typically are returned to performing status after considering the borrower’s sustained repayment performance for a reasonable period, generally not less than six consecutive months. When loans are modified in a TDR, any possible impairment similar to other impaired loans is evaluated based on the present value of expected future cash flows, discounted at the contractual interest rate of the original loan agreement, or using the current fair value of the collateral, less selling costs for collateral dependent loans. If it is determined that the value of the modified loan is less than the recorded balance of the loan, impairment is recognized through a specific allowance or charge-off to the allowance. In periods subsequent to modification, all TDRs, including those that have payment defaults, are evaluated for possible impairment, and impairment is recognized through the allowance. In the course of working with troubled borrowers, the Company may choose to restructure the contractual terms of certain loans in an effort to work out an alternative payment schedule with the borrower in order to optimize the collectability of the loan. Any loan modification is reviewed by the Company to identify whether a TDR has occurred when the Company grants a concession to the borrower that it would not otherwise consider based on economic or legal reasons related to a borrower’s financial difficulties. Terms may be modified to fit the ability of the borrower to repay in line with its current financial status or the loan may be restructured to secure additional collateral and/or guarantees to support the debt, or a combination of the two. There were two commercial and industrial loans classified as new TDRs during the twelve months ended December 31, 2017 with a pre-modification and post-modification outstanding recorded investment of $1.8 million . These loans were paid-in-full in the fourth quarter of 2017. There were no loans classified as new TDRs during the twelve months ended December 31, 2016. The 2017 modifications consisted of maturity date amendments and certain other term modifications.

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and Equipment The following table summarizes premises and equipment at December 31, 2017 and 2016 . December 31, 2017 2016 Land $ 2,500 $ 2,500 Building and improvements 6,427 5,441 Furniture and equipment 7,610 7,079 Less: accumulated depreciation (6,479 ) (4,976 ) $ 10,058 $ 10,044

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill As of December 31, 2017 and 2016 , the carrying amount of goodwill was $4.7 million . There have been no changes in the carrying amount of goodwill for the three years ended December 31, 2017 , 2016 , and 2015 . Goodwill is tested for impairment on an annual basis as of August 31, or whenever events or changes in circumstances indicate the carrying amount of goodwill exceeds its implied fair value. No events or changes in circumstances have occurred since the August 31, 2017 annual impairment test that would suggest it was more likely than not goodwill impairment existed.

Deposits

Deposits	12 Months Ended
	Dec. 31, 2017
Banking and Thrift [Abstract]
Deposits	Deposits The following table presents the composition of the Company’s deposit base as of December 31, 2017 and 2016 . December 31, 2017 2016 Noninterest-bearing demand deposit accounts $ 44,686 $ 31,166 Interest-bearing demand deposit accounts 94,674 93,074 Regular savings accounts 49,939 27,955 Money market accounts 499,501 340,240 Certificates of deposits 1,319,488 964,819 Brokered deposits 76,653 5,613 Total deposits $ 2,084,941 $ 1,462,867 Certificates of deposit (in the amount of $250 or more) $ 453,034 $ 295,578 The following table presents scheduled certificates of deposits and brokered deposits maturities by year as of December 31, 2017 . 2018 $ 680,686 2019 179,513 2020 126,603 2021 315,318 2022 80,753 Thereafter 13,268 $ 1,396,141

FHLB Advances

FHLB Advances	12 Months Ended
	Dec. 31, 2017
Banking and Thrift [Abstract]
FHLB Advances	FHLB Advances The Company had outstanding FHLB advances of $410.2 million and $190.0 million as of December 31, 2017 and 2016 , respectively. As of December 31, 2017 , the interest rates on the Company’s outstanding FHLB advances ranged from 0.42% to 4.22% , with a weighted average interest rate of 1.50% . All advances are collateralized by residential mortgage loans and commercial real estate loans pledged and held by the Company and investment securities pledged by the Company and held in safekeeping with the FHLB. Residential mortgage loans pledged were approximately $226.3 million and $166.4 million as of December 31, 2017 and 2016 , respectively, and commercial real estate loans pledged were approximately $808.9 million and $0.0 million as of December 31, 2017 and 2016, respectively. The fair value of investment securities pledged to the FHLB was approximately $453.9 million and $340.6 million as of December 31, 2017 and 2016 , respectively. Based on this collateral and the Company’s holdings of FHLB stock, the Company is eligible to borrow up to an additional $507.9 million at year-end 2017. The Company’s FHLB advances are scheduled to mature according to the following schedule: Amount 2018 $ 55,000 2019 30,000 2020 — 2021 — 2022 110,000 Thereafter 215,000 410,000 Net deferred prepayment gain on advance restructure 176 $ 410,176

Subordinated Debt

Subordinated Debt	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Subordinated Debt	Subordinated Debt In June 2013, the Company issued a subordinated debenture (the “2021 Debenture”) in the principal amount of $3.0 million . The 2021 Debenture bears a fixed interest rate of 8.00% per year, payable quarterly, and is scheduled to mature on June 28, 2021. The 2021 Debenture may be repaid, without penalty, at any time after June 28, 2016. The 2021 Debenture is intended to qualify as Tier 2 capital under regulatory guidelines. In connection with the 2021 Debenture, the Company also issued a warrant to purchase up to 48,750 shares of common stock at an initial per share exercise price equal to $19.33 . The warrant became exercisable on June 28, 2014. On May 4, 2017, the holder of the warrant exercised the warrant in full and the Company issued a net amount of 15,915 shares of common stock. The holder satisfied the exercise price by instructing the Company to withhold 32,835 of the shares of common stock in accordance with the warrant’s cashless exercise feature. In October 2015, the Company entered into a term loan in the principal amount of $10.0 million , evidenced by a term note due 2025 (the “2025 Note”). The 2025 Note bears a fixed interest rate of 6.4375% per year, payable quarterly, and is scheduled to mature on October 1, 2025. The 2025 Note is an unsecured subordinated obligation of the Company and may be repaid, without penalty, on any interest payment date on or after October 15, 2020. The 2025 Note is intended to qualify as Tier 2 capital under regulatory guidelines. In September 2016, the Company issued $25.0 million aggregate principal amount of 6.0% Fixed-to-Floating Rate Subordinated Notes due 2026 (the “2026 Notes”) in a public offering. The 2026 Notes initially bear a fixed interest rate of 6.00% per year to, but excluding September 30, 2021, and thereafter a floating rate equal to the then-current three-month LIBOR rate plus 485 basis points. All interest on the 2026 Notes is payable quarterly. The 2026 Notes are scheduled to mature on September 30, 2026. The 2026 Notes are unsecured subordinated obligations of the Company and may be repaid, without penalty, on any interest payment date on or after September 30, 2021. The 2026 Notes are intended to qualify as Tier 2 capital under regulatory guidelines. The following table presents the principal balance and unamortized discount and debt issuance costs for the 2021 Debenture, the 2025 Note and the 2026 Notes as of December 31, 2017 and 2016 . December 31, 2017 December 31, 2016 Principal Unamortized Discount and Debt Issuance Costs Principal Unamortized Discount and Debt Issuance Costs 2021 Debenture $ 3,000 — 3,000 — 2025 Note 10,000 (186 ) 10,000 (210 ) 2026 Notes 25,000 (1,088 ) 25,000 (1,212 ) Total $ 38,000 (1,274 ) 38,000 (1,422 )

Benefit Plans

Benefit Plans	12 Months Ended
	Dec. 31, 2017
Retirement Benefits [Abstract]
Benefit Plans	Benefit Plans 401(k) Plan The Company has a 401(k) plan established for substantially all full-time employees, as defined in the plan. Employee contributions are limited to the maximum established by the Internal Revenue Service on an annual basis. The Company has elected to match contributions equal to 100% of the first 1% of employee deferrals and then 50% on deferrals over 1% up to a maximum of 6% of an individual’s total eligible salary, as defined in the plan. Employer-matching contributions begin vesting after one year at a rate of 50% per year of employment and are fully vested after the completion of two years of employment. Contributions totaled approximately $0.5 million , $0.4 million and $0.3 million in the twelve months ended December 31, 2017 , 2016 and 2015, respectively. Employment Agreement The Company has entered into an employment agreement with its Chief Executive Officer that provides for the continuation of salary and certain benefits for a specified period of time under certain conditions. Under the terms of the agreement, these payments could occur in the event of a change in control of the Company, as defined in the agreement, along with other specific conditions. 2013 Equity Incentive Plan The 2013 Equity Incentive Plan (“2013 Plan”) authorizes the issuance of up to 750,000 shares of the Company’s common stock in the form of equity-based awards to employees, directors, and other eligible persons. Under the terms of the 2013 Plan, the pool of shares available for issuance may be used for available types of equity awards under the 2013 Plan, which includes stock options, stock appreciation rights, restricted stock awards, stock unit awards, and other share-based awards. All employees, consultants, and advisors of the Company or any subsidiary, as well as all non-employee directors of the Company, are eligible to receive awards under the 2013 Plan. The Company recorded $1.0 million , $0.7 million , and $0.8 million of share-based compensation expense for the years ended December 31, 2017 , 2016 , and 2015 , respectively, related to awards made under the 2013 Plan. The following table summarizes the status of the 2013 Plan awards as of December 31, 2017 , and activity for the year ended December 31, 2017 : Restricted Stock Units Weighted-Average Grant Date Fair Value Per Share Restricted Stock Awards Weighted-Average Grant Date Fair Value Per Share Deferred Stock Units Weighted-Average Grant Date Fair Value Per Unit Nonvested at January 1, 2017 49,781 $ 23.07 16,330 $ 19.06 — $ — Granted 42,819 30.99 5,628 31.00 7 30.46 Vested (19,835 ) 22.43 (18,625 ) 21.71 (7 ) 30.46 Forfeited — — — — — — Nonvested at December 31, 2017 72,765 $ 27.91 3,333 $ 24.44 — $ — As of December 31, 2017 , the total unrecognized compensation cost related to nonvested awards was $1.4 million , with a weighted-average expense recognition period of 1.9 years. Directors Deferred Stock Plan Until January 1, 2014, the Company had a stock compensation plan for non-employee members of the Board of Directors (“Directors Deferred Stock Plan”). The Company reserved 180,000 shares of common stock that could have been issued pursuant to the Directors Deferred Stock Plan. The plan provided directors the option to elect to receive up to 100% of their annual retainer in either common stock or deferred stock rights. Deferred stock rights were to be settled in common stock following the end of the deferral period payable on the basis of one share of common stock for each deferred stock right. The following table summarizes the status of deferred stock rights related to the Directors Deferred Stock Plan for the year ended December 31, 2017 . Deferred Rights Outstanding, beginning of year 82,377 Granted 618 Exercised — Outstanding, end of year 82,995 All deferred stock rights granted during the 2017 period were additional rights issued in lieu of cash dividends payable on outstanding deferred stock rights.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The provision for income taxes consists of the following: December 31, 2017 2016 2015 Current $ 10,998 $ 2,367 $ 4,293 Deferred (5,142 ) 3,544 443 Net deferred tax asset revaluation 1,846 — — Total $ 7,702 $ 5,911 $ 4,736 The Tax Cuts and Jobs Act of 2017 ("Tax Act") was enacted on December 22, 2017. Among other changes, the Tax Act reduces the federal corporate tax rate from 35% to 21%. At December 31, 2017, the Company has substantially completed its accounting for the tax effects of enactment of the Tax Act. For deferred tax assets and liabilities, amounts were revalued based on the rates expected to reverse in the future, which is now 21%. The Company continues to analyze certain aspects of the Tax Act and further refinements are possible, which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts, although we do not expect these adjustments to materially impact our financial statements. Income tax provision is reconciled to the statutory rate applied to pre-tax income. The statutory rate was 35% , 34% and 34% at December 31, 2017, 2016 and 2015, respectively. December 31, 2017 2016 2015 Statutory rate times pre-tax income $ 8,025 $ 6,115 $ 4,646 Add (subtract) the tax effect of: Income from tax-exempt securities and loans (2,512 ) (635 ) (132 ) State income tax, net of federal tax effect 693 567 154 Bank-owned life insurance (318 ) (159 ) (137 ) Net deferred tax asset revaluation 1,846 — — Other differences (32 ) 23 205 Total income taxes $ 7,702 $ 5,911 $ 4,736 The net deferred tax asset at December 31 consists of the following: December 31, 2017 2016 Deferred tax assets (liabilities) Allowance for loan losses $ 3,873 $ 4,269 Unrealized loss on available-for-sale securities 1,939 5,112 Fair value adjustments (2,213 ) (5,994 ) Depreciation (263 ) (525 ) Deferred compensation and accrued payroll 1,051 1,234 Loan origination costs (783 ) (955 ) Prepaid assets (288 ) (276 ) Other 69 397 Total deferred tax assets, net $ 3,385 $ 3,262

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions In the normal course of business, the Company may enter into transactions with various related parties. In management’s opinion, such loans, other extensions of credit, and deposits were made in the ordinary course of business and were made on substantially the same terms (including interest rates and collateral) as those prevailing at the time for comparable transactions with other persons. Further, in management’s opinion, these loans did not involve more than normal risk of collectability or present other unfavorable features. Management evaluated related party loans and extensions of credit at December 31, 2017 and 2016 , and deemed the balances immaterial. Deposits from related parties held by the Company at December 31, 2017 and 2016 totaled $22.8 million and $21.9 million , respectively.

Regulatory Capital Requirements

Regulatory Capital Requirements	12 Months Ended
	Dec. 31, 2017
Banking and Thrift [Abstract]
Regulatory Capital Requirements	Regulatory Capital Requirements The Company and the Bank are subject to various regulatory capital requirements administered by state and federal banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations, involve quantitative measures of assets, liabilities, and certain off-balance sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators about components, risk weighting and other factors. The Basel III Capital Rules became effective for the Company and the Bank on January 1, 2015, subject to a phase-in period for certain provisions. Quantitative measures established by the Basel III Capital Rules to ensure capital adequacy require the maintenance of minimum amounts and ratios of Common Equity Tier 1 capital, Tier 1 capital and Total capital, as defined in the regulations, to risk-weighted assets, and of Tier 1 capital to adjusted quarterly average assets (“Leverage Ratio”). When fully phased in on January 1, 2019, the Basel III Capital Rules will require the Company and the Bank to maintain: 1) a minimum ratio of Common Equity Tier 1 capital to risk-weighted assets of 4.5% , plus a 2.5% “capital conservation buffer” (resulting in a minimum ratio of Common Equity Tier 1 capital to risk-weighted assets of 7.0% upon full implementation); 2) a minimum ratio of Tier 1 capital to risk-weighted assets of 6.0% , plus the capital conservation buffer (resulting in a minimum Tier 1 capital ratio of 8.5% upon full implementation); 3) a minimum ratio of Total capital to risk-weighted assets of 8.0% , plus the capital conservation buffer (resulting in a minimum Total capital ratio of 10.5% upon full implementation); and 4) a minimum Leverage Ratio of 4.0% . The implementation of the capital conservation buffer began on January 1, 2016 at the 0.625% level and will be phased in over a four -year period increasing by increments of that amount on each subsequent January 1 until it reaches 2.5% on January 1, 2019. The capital conservation buffer is designed to absorb losses during periods of economic stress. Failure to maintain the minimum Common Equity Tier 1 ratio plus the capital conservation buffer will result in potential restrictions on a banking institution’s ability to pay dividends, repurchase stock and/or pay discretionary compensation to its employees. The following tables present actual and required capital ratios as of December 31, 2017 and 2016 for the Company and the Bank under the Basel III Capital Rules. The minimum required capital amounts presented include the minimum required capital levels as of December 31, 2017 and 2016 based on the phase-in provisions of the Basel III Capital Rules and the minimum required capital levels as of January 1, 2019 when the Basel III Capital Rules have been fully phased-in, in each case, including the capital conservation buffer required during such period. Capital levels required to be considered well capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. Actual Minimum Capital Required - Basel III Phase-In Schedule Minimum Capital Required - Basel III Fully Phased-In Minimum Required to be Considered Well Capitalized Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio As of December 31, 2017: Common equity tier 1 capital to risk-weighted assets Consolidated $ 224,407 11.43 % $ 112,866 5.75 % $ 137,402 7.00 % N/A N/A Bank 223,288 11.40 % 112,672 5.75 % 137,166 7.00 % 127,368 6.50 % Tier 1 capital to risk-weighted assets Consolidated 224,407 11.43 % 142,309 7.25 % 166,845 8.50 % N/A N/A Bank 223,288 11.40 % 142,064 7.25 % 166,558 8.50 % 156,761 8.00 % Total capital to risk-weighted assets Consolidated 276,103 14.07 % 181,566 9.25 % 206,102 10.50 % N/A N/A Bank 238,258 12.16 % 181,255 9.25 % 205,748 10.50 % 195,951 10.00 % Leverage ratio Consolidated 224,407 8.45 % 106,196 4.00 % 106,196 4.00 % N/A N/A Bank 223,288 8.42 % 106,059 4.00 % 106,059 4.00 % 132,574 5.00 % Actual Minimum Capital Required - Basel III Phase-In Schedule Minimum Capital Required - Basel III Fully Phased-In Minimum Required to be Considered Well Capitalized Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio As of December 31, 2016: Common equity tier 1 capital to risk-weighted assets Consolidated $ 158,479 11.54 % $ 70,366 5.13 % $ 96,110 7.00 % N/A N/A Bank 162,617 11.88 % 70,145 5.13 % 95,807 7.00 % 88,964 6.50 % Tier 1 capital to risk-weighted assets Consolidated 158,479 11.54 % 90,961 6.63 % 116,705 8.50 % N/A N/A Bank 162,617 11.88 % 90,675 6.63 % 116,337 8.50 % 109,494 8.00 % Total capital to risk-weighted assets Consolidated 206,038 15.01 % 118,421 8.63 % 144,165 10.50 % N/A N/A Bank 173,598 12.68 % 118,048 8.63 % 143,711 10.50 % 136,868 10.00 % Leverage ratio Consolidated 158,479 8.65 % 73,311 4.00 % 73,311 4.00 % N/A N/A Bank 162,617 8.89 % 73,186 4.00 % 73,186 4.00 % 91,483 5.00 %

Commitments and Credit Risk

Commitments and Credit Risk	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Credit Risk	Commitments and Credit Risk In the normal course of business, the Company makes various commitments to extend credit which are not reflected in the accompanying consolidated financial statements. At December 31, 2017 and 2016 , the Company had outstanding loan commitments totaling approximately $155.4 million and $132.5 million , respectively. As of December 31, 2017 , the Company leased office facilities under various operating leases. The leases may be subject to additional payments based on building operating costs and property taxes in excess of specified amounts. The Company recorded rental expense for all operating leases of $0.7 million , $0.6 million , and $0.5 million for the years ended December 31, 2017 , 2016 , and 2015 respectively. Future minimum cash lease payments are as follows: Amount 2018 $ 733 2019 747 2020 760 2021 315 2022 229 Thereafter 116 Total minimum payments required 1 $ 2,900 1 Minimum payments have not been reduced by minimum sublease rentals of $1.6 million due in the future under noncancelable subleases. In addition, the Company is a limited partner in a Small Business Investment Company fund (the “SBIC Fund”). As of December 31, 2017 , the Company has committed to contribute up to $3.2 million of capital to the SBIC Fund.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments ASC Topic 820, Fair Value Measurements , defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. ASU Topic 820 also specifies a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value: Level 1 Quoted prices in active markets for identical assets or liabilities Level 2 Observable inputs other than Level 1 prices, 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 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities Following is a description of the valuation methodologies and inputs used for assets measured at fair value on a recurring basis and recognized in the accompanying consolidated balance sheets, as well as the general classification of such assets pursuant to the valuation hierarchy. Available-for-Sale Securities Where quoted market prices are available in an active market, securities are classified within Level 1 of the valuation hierarchy. Level 1 securities include highly liquid mutual funds. If quoted market prices are not available, then fair values are estimated by using pricing models, quoted prices of securities with similar characteristics or discounted cash flows. Level 2 securities include U.S. Government-sponsored agencies, municipal securities, mortgage and asset-backed securities and certain corporate securities. Matrix pricing is a mathematical technique widely used in the banking industry to value investment securities without relying exclusively on quoted prices for specific investment securities but also on the investment securities’ relationship to other benchmark quoted investment securities. In certain cases where Level 1 or Level 2 inputs are not available, securities are classified within Level 3 of the hierarchy. Fair values are calculated using discounted cash flows. Discounted cash flows are calculated based off of the anticipated future cash flows updated to incorporate loss severities. Rating agency and industry research reports as well as default and deferral activity are reviewed and incorporated into the calculation. The Company did not own any securities classified within Level 3 of the hierarchy as of December 31, 2017 or 2016 . Loans Held-for-Sale (mandatory pricing agreements) The fair value of loans held-for-sale is determined using quoted prices for similar assets, adjusted for specific attributes of that loan (Level 2). Interest Rate Swap Agreements The fair values of interest rate swap agreements are estimated using current market interest rates as of the balance sheet date and calculated using discounted cash flows that are observable or that can be corroborated by observable market data and, therefore, are classified within Level 2 of the valuation hierarchy. Forward Contracts The fair values of forward contracts on to-be-announced securities are determined using quoted prices in active markets, or benchmarked thereto (Level 1). Interest Rate Lock Commitments The fair values of IRLCs are determined using the projected sale price of individual loans based on changes in market interest rates, projected pull-through rates (the probability that an IRLC will ultimately result in an originated loan), the reduction in the value of the applicant’s option due to the passage of time, and the remaining origination costs to be incurred based on management’s estimate of market costs (Level 3). The following tables present the fair value measurements of assets and liabilities recognized in the accompanying consolidated balance sheets measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fall at December 31, 2017 and 2016 . December 31, 2017 Fair Value Measurements Using Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) U.S. Government-sponsored agencies $ 133,190 $ — $ 133,190 $ — Municipal securities 96,377 — 96,377 — Mortgage-backed securities 209,720 — 209,720 — Asset-backed securities 5,009 — 5,009 — Corporate securities 26,047 — 26,047 — Other securities 2,932 2,932 — — Total available-for-sale securities $ 473,275 $ 2,932 $ 470,343 $ — Interest rate swaps (271 ) — (271 ) — Loans held-for-sale (mandatory pricing agreements) 23,571 — 23,571 — Forward contracts (80 ) (80 ) — — IRLCs 551 — — 551 December 31, 2016 Fair Value Measurements Using Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) U.S. Government-sponsored agencies $ 91,896 $ — $ 91,896 $ — Municipal securities 91,886 — 91,886 — Mortgage-backed securities 231,641 — 231,641 — Asset-backed securities 19,534 — 19,534 — Corporate securities 18,811 18,811 Other securities 2,932 2,932 — — Total available-for-sale securities $ 456,700 $ 2,932 $ 453,768 $ — Loans held-for-sale (mandatory pricing agreements) 27,101 — 27,101 — Forward contracts 438 438 — — IRLCs 610 — — 610 The following table reconciles the beginning and ending balances of recurring fair value measurements recognized in the accompanying consolidated balance sheets using significant unobservable (Level 3) inputs. Interest Rate Balance as of January 1, 2015 $ 521 Total realized gains (losses) Included in net income 61 Included in other comprehensive income — Sales — Balance, December 31, 2015 582 Total realized gains Included in net income 28 Balance, December 31, 2016 610 Total realized gains Included in net income (59 ) Balance, December 31, 2017 $ 551 The following describes the valuation methodologies and inputs used for assets measured at fair value on a nonrecurring basis, as well as the general classification of such assets pursuant to the valuation hierarchy. Impaired Loans (Collateral Dependent) Loans for which it is probable that the Company will not collect all principal and interest due according to contractual terms are measured for impairment. The amount of the impairment may be determined based on the fair value of the underlying collateral, less costs to sell, the estimated present value of future cash flows or the loan’s observable market price. If the impaired loan is identified as collateral dependent, the fair value of the underlying collateral, less costs to sell, is used to measure impairment. This method requires obtaining a current independent appraisal of the collateral and applying a discount factor to the value. If the impaired loan is not collateral dependent, the Company utilizes a discounted cash flow analysis to measure impairment. Impaired loans with a specific valuation allowance based on the value of the underlying collateral or a discounted cash flow analysis are classified as Level 3 assets. There were no impaired loans that were measured at fair value on a nonrecurring basis at December 31, 2017 or 2016 . Unobservable (Level 3) Inputs The following tables present quantitative information about unobservable inputs used in recurring and nonrecurring Level 3 fair value measurements other than goodwill. Fair Value at Valuation Unobservable Range IRLCs $ 551 Discounted cash flow Loan closing rates 39% - 100% Fair Value at Valuation Unobservable Range IRLCs $ 610 Discounted cash flow Loan closing rates 43% - 99% The following methods were used to estimate the fair value of all other financial instruments recognized in the accompanying consolidated balance sheets at amounts other than fair value: Cash and Cash Equivalents For these instruments, the carrying amount is a reasonable estimate of fair value. Interest-Bearing Time Deposits The fair value of these financial instruments approximates carrying value. Held-to-Maturity Securities Fair values are determined by using models that are based on security-specific details, as well as relevant industry and economic factors. The most significant of these inputs are quoted market prices, and interest rate spreads on relevant benchmark securities. Loans Held-For-Sale (best efforts pricing agreements) The fair value of these loans approximates carrying value. Loans The fair value of loans is estimated by discounting future cash flows using current rates at which similar loans would be made to borrowers with similar credit ratings and remaining maturities. Accrued Interest Receivable The fair value of these financial instruments approximates carrying value. Federal Home Loan Bank of Indianapolis Stock The fair value approximates carrying value. Deposits The fair value of noninterest-bearing and interest-bearing demand deposits, savings and money market accounts approximates carrying value. The fair value of fixed maturity certificates of deposit and brokered deposits are estimated using rates currently offered for deposits of similar remaining maturities. Advances from Federal Home Loan Bank The fair value of fixed rate advances is estimated using rates currently offered for similar remaining maturities. The carrying value of variable rate advances approximates fair value. Subordinated Debt The fair value of the Company’s publicly traded subordinated debt is obtained from quoted market prices. The fair value of the Company’s remaining subordinated debt is estimated using discounted cash flow analysis, based on current borrowing rates for similar types of debt instruments. Accrued Interest Payable The fair value of these financial instruments approximates carrying value. Commitments The fair value of commitments to extend credit are based on fees currently charged to enter into similar agreements with similar maturities and interest rates. The Company determined that the fair value of commitments was zero based on the contractual value of outstanding commitments at December 31, 2017 and 2016 . The following tables summarize the carrying value and estimated fair value of all financial assets and liabilities at December 31, 2017 and 2016 : December 31, 2017 Fair Value Measurements Using Carrying Amount Fair Value Quoted Prices In Active Market for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Cash and cash equivalents $ 47,981 $ 47,981 $ 47,981 $ — $ — Held-to-maturity securities 19,209 19,083 — 19,083 — Loans held-for-sale (best efforts pricing agreements) 27,835 27,835 — 27,835 — Net loans 2,091,193 2,051,545 — — 2,051,545 Accrued interest receivable 11,944 11,944 11,944 — — Federal Home Loan Bank of Indianapolis stock 19,575 19,575 — 19,575 — Deposits 2,084,941 2,057,708 688,800 — 1,368,908 Advances from Federal Home Loan Bank 410,176 397,950 — 397,950 — Subordinated debt 36,726 39,972 26,520 13,452 — Accrued interest payable 311 311 311 — — December 31, 2016 Fair Value Measurements Using Carrying Amount Fair Value Quoted Prices In Active Market for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Cash and cash equivalents $ 39,452 $ 39,452 $ 39,452 $ — $ — Interest-bearing time deposits 250 250 250 — — Held-to-maturity securities 16,671 16,197 — 16,197 — Net loans 1,250,789 1,244,918 — — 1,244,918 Accrued interest receivable 6,708 6,708 6,708 — — Federal Home Loan Bank of Indianapolis stock 8,910 8,910 — 8,910 — Deposits 1,462,867 1,441,794 492,435 — 949,359 Advances from Federal Home Loan Bank 189,981 186,258 — 186,258 — Subordinated debt 36,578 38,425 24,900 13,525 — Accrued interest payable 112 112 112 — —

Mortgage Banking Activities

Mortgage Banking Activities	12 Months Ended
	Dec. 31, 2017
Mortgage Banking [Abstract]
Mortgage Banking Activities	Mortgage Banking Activities The Company’s residential real estate lending business originates mortgage loans for customers and sells a majority of the originated loans into the secondary market. The Company hedges its mortgage banking pipeline by entering into forward contracts for the future delivery of mortgage loans to third party investors and entering into IRLCs with potential borrowers to fund specific mortgage loans that will be sold into the secondary market. To facilitate the hedging of the loans, the Company has elected the fair value option for loans originated and intended for sale in the secondary market under mandatory pricing agreements. Changes in the fair value of loans held-for-sale, IRLCs and forward contracts are recorded in the mortgage banking activities line item within noninterest income. Refer to Note 17 for further information on derivative financial instruments. During the years ended December 31, 2017 , 2016 , and 2015 , the Company originated mortgage loans held-for-sale of $412.9 million , $598.4 million , and $502.7 million , respectively, and received $425.3 million , $619.8 million , and $509.4 million from the sale of mortgage loans, respectively, into the secondary market. During 2017, the Company also sold $42.3 of residential mortgage loans that were originally held for investment. The following table provides the components of income from mortgage banking activities for the years ended December 31, 2017 , 2016 , and 2015 . Year Ended December 31, 2017 2016 2015 Gain on loans sold $ 7,775 $ 12,462 $ 8,845 Gain (loss) resulting from the change in fair value of loans held-for-sale 638 (500 ) (341 ) Gain (loss) resulting from the change in fair value of derivatives (577 ) 436 496 Net revenue from mortgage banking activities $ 7,836 $ 12,398 $ 9,000

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments The Company uses derivative financial instruments to help manage exposure to interest rate risk and the effects that changes in interest rates may have on net income and the fair value of assets and liabilities. The Company enters into interest rate swap agreements as part of its asset/liability management strategy to help manage its interest rate risk position. Additionally, the Company enters into forward contracts for the future delivery of mortgage loans to third party investors and enters into IRLCs with potential borrowers to fund specific mortgage loans that will be sold into the secondary market. The forward contracts are entered into in order to economically hedge the effect of changes in interest rates resulting from the Company’s commitment to fund the loans. During 2017, the Company entered into various interest rate swap agreements designated and qualifying as accounting hedges. Designating an interest rate swap as an accounting hedge allows the Company to recognize gains and losses, less any ineffectiveness, in the income statement within the same period that the hedged item affects earnings. The Company includes the gain or loss on the hedged items in the same line item as the offsetting loss or gain on the related interest rate swaps. The fair value of interest rate swaps with a positive fair value are reported in accrued income and other assets in the consolidated balance sheets while interest rate swaps with a negative fair value are reported in accrued expenses and other liabilities in the consolidated balance sheets. The IRLCs and forward contracts are not designated as accounting hedges, and are recorded at fair value with changes in fair value reflected in noninterest income on the consolidated statements of income. The fair value of derivative instruments with a positive fair value are reported in accrued income and other assets in the consolidated balance sheets while derivative instruments with a negative fair value are reported in accrued expenses and other liabilities in the consolidated balance sheets. The following table presents amounts that were recorded on the balance sheet related to cumulative basis adjustments for interest rate swap derivatives designated as fair value accounting hedges as of December 31, 2017 and 2016. Carrying amount of the hedged assets Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged assets Line item in the consolidated balance sheet in which the hedged item is included December 31, 2017 December 31, 2016 December 31, 2017 December 31, 2016 Loans $ 91,653 $ — $ (263 ) $ — Securities available-for-sale (1) 92,230 — (8 ) — (1) These amounts include the amortized cost basis of closed portfolios used to designate hedging relationships in which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. At December 31, 2017 and 2016, the amounts of the designated hedged items were $50.0 million and $0.0 million , respectively. The following table presents a summary of interest rate swap derivatives designated as fair value accounting hedges of fixed-rate receivables used in the Company's asset/liability management activities at December 31, 2017, identified by the underlying interest rate-sensitive instruments. Weighted Average Remaining Maturity (years) Weighted-Average Rate Instruments Associated With Notional Value Fair Value Receive Pay Loans $ 91,135 7.9 $ (263 ) 3 month LIBOR 2.44% Securities available-for-sale 50,000 6.8 (8 ) 3 month LIBOR 2.33% Total swap portfolio at December 31, 2017 $ 141,135 7.5 $ (271 ) 3 month LIBOR 2.41% These derivative financial instruments were entered into for the purpose of managing the interest rate risk of certain assets. The pay-fixed/receive-variable calculations of the above swap transactions have deferred start dates of approximately one year from each trade date. As each of these derivative transactions were entered into during the fourth quarter 2017, these interest rate swap transactions had no impact on interest income during 2017. At December 31, 2017, the Company pledged $0.7 million of cash collateral to counterparties as security for its obligations related to these interest rate swap transactions. The following table presents the notional amount and fair value of interest rate swaps, IRLCs and forward contracts utilized by the Company at December 31, 2017 and 2016 . December 31, 2017 December 31, 2016 Notional Fair Notional Fair Asset Derivatives Derivatives designated as hedging instruments Interest rate swaps associated with loans $ 17,900 $ 3 $ — $ — Derivatives not designated as hedging instruments IRLCs 26,394 551 36,311 610 Forward contracts 51,124 (80 ) 61,000 438 Total contracts $ 95,418 $ 474 $ 97,311 $ 1,048 Liability Derivatives Derivatives designated as hedging instruments Interest rate swaps associated with loans $ 73,235 $ (266 ) $ — $ — Interest rate swaps associated with securities available-for-sale 50,000 (8 ) — — Total contracts $ 123,235 $ (274 ) $ — $ — The fair value of interest rate swaps were estimated using a discounted cash flow method that incorporates current market interest rates as of the balance sheet date. Fair values of IRLCs and forward contracts were estimated using changes in mortgage interest rates from the date the Company entered into the IRLC and the balance sheet date. The following table summarizes the periodic changes in the fair value of the derivative financial instruments on the consolidated statements of income for the twelve months ended December 31, 2017 , 2016 , and 2015 . The derivatives designated as hedging instruments had no impact on the consolidated statements of income for the twelve months ended December 31, 2017, 2016 and 2015. Amount of gain / (loss) recognized in the twelve months ended December 31, 2017 December 31, 2016 December 31, 2015 Asset Derivatives Derivatives not designated as hedging instruments IRLCs (59 ) 28 61 Forward contracts (519 ) 408 435

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2017
Stockholders' Equity Note [Abstract]
Shareholders' Equity	Shareholders’ Equity In September 2017, the Company completed an underwritten public offering of 1,650,000 shares of its common stock at a price of $29.00 per share. The Company received net proceeds of approximately $44.8 million after deducting underwriting discounts and commissions and offering expenses. In addition, the Company granted the underwriters a 30 -day option to purchase up to an additional 247,500 shares of its common stock. The Company closed on the 247,500 additional shares in September 2017 and received net proceeds of approximately $6.8 million , after deducting underwriting discounts and commissions and offering expenses. In December 2016, the Company and the Bank entered into an Underwriting Agreement, pursuant to which the Company sold 945,000 shares of common stock at $26.50 per share, resulting in net proceeds to the Company of $23.4 million . In May 2016, the Company and the Bank entered into an Underwriting Agreement, pursuant to which the Company sold an additional 895,955 shares of common stock at $24.00 per share, resulting in net proceeds to the Company of $19.7 million . In May 2016, the Company and the Bank entered into a Sales Agency Agreement to sell shares (the “ATM Shares”) of the Company’s common stock having an aggregate gross sales price of up to $25.0 million , from time to time, through an “at-the-market” equity offering program (the “ATM Program”). The sales, if any, of the ATM Shares, may be made in sales deemed to be “at-the-market offerings” as defined in Rule 415 under the Securities Act of 1933, as amended, including sales made directly on or through The Nasdaq Stock Market, or another market for the Company’s common stock, sales made to or through a market maker other than on an exchange or otherwise, in negotiated transactions at market prices prevailing at the time of sale or at negotiated prices, or as otherwise agreed with the sales agent. Subject to the terms and conditions of the Sales Agency Agreement, upon its acceptance of written instructions from the Company, the sales agent will use its commercially reasonable efforts to sell on the Company’s behalf all of the designated ATM Shares. The Sales Agency Agreement provides for the Company to pay the sales agent a commission of up to 3.0% of the gross sales price per share sold through it as sales agent under the Sales Agency Agreement. The Company may also sell ATM Shares under the Sales Agency Agreement to the sales agent, as principal for its own account, at a price per share agreed upon at the time of sale. Actual sales will depend on a variety of factors to be determined by the Company from time to time. The Company has no obligation to sell any of the ATM Shares under the Sales Agency Agreement, and may at any time suspend solicitation and offers under the Sales Agency Agreement. In addition, the Company has agreed to indemnify the sales agent against certain liabilities on customary terms. The Company has sold a total of 139,811 ATM Shares through the ATM Program for net proceeds of approximately $3.1 million . As of December 31, 2017, approximately $21.6 million remained available for sale under the ATM Program.

Condensed Financial Information

Condensed Financial Information (Parent Company Only)	12 Months Ended
	Dec. 31, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Financial Information (Parent Company Only)	Condensed Financial Information (Parent Company Only) Presented below is condensed financial information as to financial position, results of operations, and cash flows of the Company on a non-consolidated basis: Condensed Balance Sheets Year Ended December 31, 2017 2016 Assets Cash and cash equivalents $ 32,810 $ 29,365 Investment in common stock of subsidiaries 223,008 158,080 Premises and equipment, net 6,576 6,852 Accrued income and other assets 3,114 1,488 Total assets $ 265,508 $ 195,785 Liabilities and shareholders’ equity Subordinated debt, net of unamortized discounts and debt issuance costs of $1,274 in 2017 and $1,422 in 2016 $ 36,726 $ 36,578 Note payable to the Bank 3,600 4,000 Accrued expenses and other liabilities 1,055 1,265 Total liabilities 41,381 41,843 Shareholders’ equity 224,127 153,942 Total liabilities and shareholders’ equity $ 265,508 $ 195,785 Condensed Statements of Income Year Ended December 31, 2017 2016 2015 Expenses Interest on borrowings $ 2,724 $ 1,557 $ 643 Salaries and employee benefits 354 344 425 Consulting and professional fees 664 871 930 Premises and equipment 302 291 200 Other 258 235 174 Total expenses 4,302 3,298 2,372 Loss before income tax and equity in undistributed net income of subsidiaries (4,302 ) (3,298 ) (2,372 ) Income tax benefit (1,539 ) (1,224 ) (813 ) Loss before equity in undistributed net income of subsidiaries (2,763 ) (2,074 ) (1,559 ) Equity in undistributed net income of subsidiaries 17,989 14,148 10,488 Net income $ 15,226 $ 12,074 $ 8,929 Condensed Statements of Comprehensive Income Year Ended December 31, 2017 2016 2015 Net income $ 15,226 $ 12,074 $ 8,929 Other comprehensive income (loss) Net unrealized holding gains (losses) on securities available-for-sale 6,280 (12,315 ) (1,669 ) Reclassification adjustment for losses (gains) realized 8 (177 ) — Other comprehensive income (loss) before tax 6,288 (12,492 ) (1,669 ) Income tax provision (benefit) 2,039 (4,433 ) (595 ) Other comprehensive income (loss) - net of tax 4,249 (8,059 ) (1,074 ) Comprehensive income $ 19,475 $ 4,015 $ 7,855 Condensed Statements of Cash Flows Year Ended December 31, 2017 2016 2015 Operating activities Net income $ 15,226 $ 12,074 $ 8,929 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed net income of subsidiaries (17,989 ) (14,148 ) (10,488 ) Depreciation and amortization 572 461 246 Share-based compensation expense 175 128 150 Net change in other assets (1,453 ) (696 ) 958 Net change in other liabilities (326 ) 870 (275 ) Net cash used in operating activities (3,795 ) (1,311 ) (480 ) Investing activities Capital contribution to the Bank (42,000 ) (43,500 ) (10,000 ) Purchase of premises and equipment (148 ) (1,423 ) (1,407 ) Net cash used in investing activities (42,148 ) (44,923 ) (11,407 ) Financing activities Cash dividends paid (1,675 ) (1,199 ) (1,093 ) Net proceeds from issuance of subordinated debt — 23,757 9,761 Principal payment on loan from the Bank (400 ) — — Net proceeds from common stock issuance 51,636 46,223 — Other, net (173 ) (42 ) 23 Net cash provided by financing activities 49,388 68,739 8,691 Net increase (decrease) in cash and cash equivalents 3,445 22,505 (3,196 ) Cash and cash equivalents at beginning of year 29,365 6,860 10,056 Cash and cash equivalents at end of year $ 32,810 $ 29,365 $ 6,860

Quarterly Financial Data (unaud

Quarterly Financial Data (unaudited)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data (unaudited)	Quarterly Financial Data (unaudited) Three Months Ended December 31, September 30, June 30, March 31, Income Statement Data: Interest income $ 24,638 $ 22,694 $ 19,975 $ 17,390 Interest expense 9,278 8,503 7,001 5,933 Net interest income 15,360 14,191 12,974 11,457 Provision for loan losses 1,179 1,336 1,322 1,035 Net interest income after provision for loan losses 14,181 12,855 11,652 10,422 Noninterest income 2,539 3,135 2,736 2,131 Noninterest expense 9,701 9,401 8,923 8,698 Income before income taxes 7,019 6,589 5,465 3,855 Income tax provision 3,521 1,694 1,464 1,023 Net income $ 3,498 $ 4,895 $ 4,001 $ 2,832 Per Share Data: Net income Basic $ 0.41 $ 0.72 $ 0.61 $ 0.43 Diluted $ 0.41 $ 0.71 $ 0.61 $ 0.43 Weighted average common shares outstanding Basic 8,490,951 6,834,011 6,583,515 6,547,807 Diluted 8,527,599 6,854,614 6,597,991 6,602,200 Three Months Ended December 31, September 30, June 30, March 31, Income Statement Data: Interest income $ 16,764 $ 15,471 $ 13,971 $ 12,693 Interest expense 5,860 5,133 4,665 3,552 Net interest income 10,904 10,338 9,306 9,141 Provision for loan losses 256 2,204 924 946 Net interest income after provision for loan losses 10,648 8,134 8,382 8,195 Noninterest income 2,891 4,898 3,748 2,540 Noninterest expense 8,158 8,413 7,875 7,005 Income before income taxes 5,381 4,619 4,255 3,730 Income tax provision 1,671 1,521 1,421 1,298 Net income $ 3,710 $ 3,098 $ 2,834 $ 2,432 Per Share Data: Net income Basic $ 0.65 $ 0.55 $ 0.57 $ 0.54 Diluted $ 0.64 $ 0.55 $ 0.57 $ 0.53 Weighted average common shares outstanding Basic 5,722,615 5,597,867 4,972,759 4,541,728 Diluted 5,761,931 5,622,181 4,992,025 4,575,555

Recent Accounting Pronouncement

Recent Accounting Pronouncements	12 Months Ended
	Dec. 31, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements Accounting Standards Update (“Update”) 2014-09, Revenue from Contracts with Customers (Topic 606) (May 2014) The amendments in this Update clarify the principles for recognizing revenue and develop a common revenue standard among industries. The core principle of the guidance is that an entity should recognize revenue to depict 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. The guidance provides steps to follow to achieve the core principle. An entity should disclose sufficient information to enable users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The entity should apply the amendments using one of two retrospective methods described in the amendment. Accounting Standard Update 2015-14, Revenue from Contracts with Customers (Topic 606) delayed the effective date for public entities to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Several subsequent amendments have been issued that provide clarifying guidance and are effective with the adoption of the original Update. Early adoption is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The guidance does not apply to revenues associated with financial instruments, including loans and investment securities. This guidance will not have a material impact on the condensed consolidated financial statements, as the Company’s most significant sources of revenue are excluded from the scope of Topic 606. Leases (Topic 842) (February 2016) In February 2016, the FASB amended its standards with respect to the accounting for leases. The Update replaces all current GAAP guidance on this topic and requires that an operating lease be recognized by the lessee on the balance sheet as a “right-of-use” asset along with a corresponding liability representing the rent obligation. Key aspects of current lessor accounting remain unchanged from existing guidance. The resulting standard is expected to result in an increase to assets and liabilities recognized and, therefore, increase risk-weighted assets for regulatory capital purposes. The amended standard requires the use of the modified retrospective transition approach for existing leases that have not expired before the date of initial application and will become effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Earlier adoption of the amended standard is permitted. The Company does not expect to early adopt and is currently in the process of fully evaluating the impact adoption of the amended standard may have on the condensed consolidated financial statements and will subsequently implement updated processes and accounting policies as deemed necessary. The overall impact of the new standard on the Company’s financial condition, results of operations and regulatory capital is not yet determinable. Accounting Standards Update 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (June 2016) The main objective of this Update is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. To achieve this objective, the amendments in this Update replace the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The Update affects entities holding financial assets that are not accounted for at fair value through net income. The amendments affect loans, debt securities, off-balance-sheet credit exposures, and any other financial assets not excluded from the scope that have the contractual right to receive cash. The amendments in this Update affect an entity to varying degrees depending on the credit quality of the assets held by the entity, their duration, and how the entity applies current GAAP. There is diversity in practice in applying the incurred loss methodology, which means that before transition some entities may be more aligned, under current GAAP than others to the new measure of expected credit losses. The following describes the main provisions of this Update. • Assets Measured at Amortized Cost: The amendments in this Update require a financial asset (or a group of financial assets) measured at amortized cost basis to be presented at the net amount expected to be collected. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset(s) to present the net carrying value at the amount expected to be collected on the financial asset. The income statement reflects the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. An entity must use judgment in determining the relevant information and estimation methods that are appropriate in its circumstances. • Available-for-Sale Debt Securities: Credit losses relating to available-for-sale debt securities should be recorded through an allowance for credit losses. Available-for-sale accounting recognizes that value may be realized either through collection of contractual cash flows or through sale of the security. Therefore, the amendments limit the amount of the allowance for credit losses to the amount by which fair value is below amortized cost because the classification as available-for-sale is premised on an investment strategy that recognizes that the investment could be sold at fair value, if cash collection would result in the realization of an amount less than fair value. For public business entities that are SEC filers, the amendments in this Update are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. All entities may adopt the amendments in this Update earlier as of the fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. An entity will apply the amendments in this Update through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective (that is, a modified-retrospective approach). A prospective transition approach is required for debt securities for which an other-than-temporary impairment had been recognized before the effective date. The effect of a prospective transition approach is to maintain the same amortized cost basis before and after the effective date of this Update. The Company does not expect to early adopt and is currently evaluating the impact of the amendments on the Company’s consolidated financial statements and cannot determine or reasonably quantify the impact of the adoption of the amendments due to the complexity and extensive changes. The Company intends to develop processes and procedures during the next two years to ensure it is fully compliant with the amendments at adoption date. The Company has formed an implementation committee and has begun evaluating the data needed for implementation as well as considering appropriate methodologies. Accounting Standards Update 2017-12 - Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities (August 2017) The new standard refines and expands hedge accounting for both financial (e.g., interest rate) and commodity risks. Its provisions create more transparency around how economic results are presented, both on the face of the financial statements and in the footnotes, for investors and analysts. For public business entities that are SEC filers, the new standard takes effect for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted in any interim period or fiscal years before the effective date of the standard. The Company expects this pronouncement will allow it to manage its interest rate risk related to longer term fixed rate assets using strategies that were previously inaccessible under the former accounting guidance. The Company chose to early adopt this pronouncement. This is discussed further in Note 17. Accounting Standards Update 2018-02 - Income Statement - Reporting Comprehensive Income (Topic 820): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income (February 2018) The amendments in this Update allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting form the Tax Act. Consequently, the amendments eliminate the stranded tax effects resulting form the Tax Act and will improve the usefulness of information reported to financial statement users. However, because the amendments only relate to the reclassification of the income tax effects of the Tax Act, the underlying guidance that requires that the effect of a change in tax laws or rates be included in income from continuing operations is not affected. The amendments in this Update also require certain disclosures about stranded tax effects. The amendments in this Update are effective for all entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted, including adoption in any interim period for public business entities for reporting periods for which the financial statements have not yet been issued. The amendments in this Update should be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Act is recognized. The Company is currently evaluating the impact of adopting this Update on the consolidated financial statements, but it is not expected to have a significant effect.

Basis of Presentation and Sum30

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Description of Business	Description of Business The Company was incorporated on September 15, 2005 , and consummated a plan of exchange on March 21, 2006, by which the Company became a bank holding company and 100% owner of First Internet Bank of Indiana (the “Bank”). The Bank provides commercial and retail banking services, with operations conducted on the Internet at www.firstib.com and primarily through its corporate office located in Fishers, Indiana as well as a loan production office in Tempe, Arizona. The majority of the Bank’s income is derived from commercial lending, retail lending, and mortgage banking activities. The Bank is subject to competition from other financial institutions. The Bank is regulated by certain state and federal agencies and undergoes periodic examinations by those regulatory authorities. JKH Realty Services, LLC was established August 20, 2012 as a single member LLC wholly-owned by the Bank to manage other real estate owned properties as needed.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of the Company and its direct and indirect subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation. The Company’s business activities are currently limited to one reporting unit and reportable segment, which is commercial banking.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The Company utilizes processes that involve the use of significant estimates and the judgment of management in determining the amount of the Company’s allowance for loan losses and income taxes and valuation and impairments of investment securities and goodwill, as well as fair value measurements of derivatives and loans held-for-sale. Actual results could differ from those estimates.
Securities	Securities The Company classifies its securities in one of three categories and accounts for the investments as follows: • Securities that the Company has the positive intent and ability to hold to maturity are classified as “held-to-maturity” and reported at amortized cost. • Securities that are acquired and held principally for the purpose of selling them in the near term with the objective of generating economic profits on short-term differences in market characteristics are classified as “trading securities” and reported at fair value, with unrealized gains and losses included in earnings. The Company had no securities classified as “trading securities” at December 31, 2017 or 2016 . • Securities not classified as either “held-to-maturity” or “trading securities” are classified as “securities available-for-sale” and reported at fair value, with unrealized gains and losses, after applicable taxes, excluded from earnings and reported in a separate component of shareholders’ equity. Declines in the value of debt securities and marketable equity securities that are considered to be other-than-temporary are recorded as an other-than-temporary impairment of securities available-for-sale with other-than-temporary impairment losses recorded in the consolidated statements of income. Interest and dividend income, adjusted by amortization of premium or discount, is included in earnings using the effective interest rate method. Purchases and sales of securities are recorded in the consolidated balance sheets on the trade date. Gains and losses from security sales or disposals are recognized as of the trade date in the consolidated statements of income for the period in which securities are sold or otherwise disposed of. Gains and losses on sales of securities are determined using the specific-identification method.
Loans Held for Sale	Loans Held-for-Sale Loans originated and intended for sale in the secondary market under best-efforts pricing agreements are carried at the lower of cost or fair value in the aggregate. Net unrealized losses, if any, are recognized through a valuation allowance by charges to noninterest income. Loans originated and intended for sale in the secondary market under mandatory pricing agreements are carried at fair value to facilitate hedging of the loans. Gains and losses resulting from changes in fair value are included in noninterest income. Gains and losses on loan sales are recorded in noninterest income, and direct loan origination costs and fees are deferred at origination of the loan and are recognized in noninterest income upon sale of the loan.
Revenue Recognition	Revenue Recognition Interest income on loans is accrued as earned using the interest method based on unpaid principal balances except for interest on loans in nonaccrual status. Interest on loans in nonaccrual status is recorded as a reduction of loan principal when received. Premiums and discounts are amortized using the effective interest rate method. Loan fees, net of certain direct origination costs, primarily salaries and wages, are deferred and amortized to interest income as a yield adjustment over the life of the loan.
Loans Receivable	Loans Loans that management intends to hold until maturity are reported at their outstanding principal balance adjusted for unearned income, charge-offs, the allowance for loan losses (“ALLL”), any unamortized deferred fees or costs on originated loans, and unamortized premiums or discounts on purchased loans. For loans recorded at cost, interest income is accrued based on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, as well as premiums and discounts, are deferred and amortized as a level yield adjustment over the respective term of the loan.
Allowance for Loan Losses Methodology	Allowance for Loan Losses Methodology Company policy is designed to maintain an adequate ALLL. Primary responsibility for ensuring that the Company has processes in place to consistently assess the adequacy of the ALLL rests with the Board of Directors (the “Board”). The Board has charged management with responsibility for establishing the methodology to be used and to assess the adequacy of the ALLL. The Board reviews recommendations from management on a quarterly basis to adjust the allowance as appropriate. The methodology employed by management for each portfolio segment, at a minimum, contains the following: 1. Loans are segmented by type of loan. 2. The required ALLL for types of performing homogeneous loans which do not have a specific reserve is determined by applying a factor based on historical losses averaged over the past sixteen quarters. In those instances where the Company’s historical experience is not available, management develops factors based on industry experience and best practices. 3. All criticized, classified and impaired loans are tested for impairment by applying one of three methodologies: a. Present value of future cash flows; b. Fair value of collateral less costs to sell; or c. The loan’s observable market price 4. All troubled debt restructurings (“TDR”) are considered impaired loans. 5. Loans tested for impairment are removed from other pools to prevent layering (double-counting). 6. The required ALLL for each group of loans are added together to determine the total required ALLL for the Company. The required ALLL is compared to the existing ALLL to determine the provision required to increase the ALLL or credit to decrease the ALLL. The historical loss experience is determined by portfolio segment and considers two weighted average net charge-off trends: 1) the Company’s average loss history over the previous sixteen quarters; and 2) the average loss history over the previous sixteen quarters for a peer group. Management believes the historical loss experience methodology is appropriate in the current economic environment, as it captures loss rates that are comparable to the current period being analyzed. The Company also factors in the following qualitative considerations: 1. Changes in policies and procedures; 2. Changes in national, regional, and local economic and business conditions; 3. Changes in the composition and size of the portfolio and in the terms of loans; 4. Changes in the experience, ability, and depth of lending management and other relevant staff; 5. Changes in the volume and severity of past due loans, the volume of nonaccrual loans, and the volume and severity of adversely classified or graded loans; 6. Changes in the quality of the Company’s loan review system; 7. Changes in the value of underlying collateral for collateral-dependent loans; 8. The existence and effect of any concentration of credit and changes in the level of such concentrations; and 9. The effect of other external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in the existing portfolio.
Provision for Loan Losses	Provision for Loan Losses A provision for estimated losses on loans is charged to income based upon management’s evaluation of the potential losses. Such an evaluation, which includes a review of all loans for which full repayment may not be reasonably assured, considers, among other matters, the estimated net realizable value of the underlying collateral, as applicable, economic conditions, loan loss experience, and other factors that are particularly susceptible to changes that could result in a material adjustment in the near term. While management attempts to use the best information available in making its evaluations, future allowance adjustments may be necessary if economic conditions change substantially from the assumptions used in making the evaluations.
Nonaccrual Loans	Nonaccrual Loans Any loan which becomes 90 days delinquent or for which the full collection of principal and interest may be in doubt will be considered for nonaccrual status. At the time a loan is placed on nonaccrual status, all accrued but unpaid interest will be reversed from interest income. Placing the loan on nonaccrual status does not relieve the borrower of the obligation to repay interest. A loan placed on nonaccrual status may be restored to accrual status when all delinquent principal and interest has been brought current, and the Company expects full payment of the remaining contractual principal and interest.
Impaired Loans	Impaired Loans A loan is designated as impaired, in accordance with the impairment accounting guidance when, based on current information or events, it is probable that the Company will be unable to collect all amounts due (principal and interest) according to the contractual terms of the loan agreement. Payments with delays generally not exceeding 90 days outstanding are not considered impaired. Certain nonaccrual and substantially all delinquent loans more than 90 days past due may be considered to be impaired. Generally, loans are placed on nonaccrual status at 90 days past due and accrued interest is reversed against earnings, unless the loan is well-secured and in the process of collection. The accrual of interest on impaired and nonaccrual loans is discontinued when, in management’s opinion, the borrower may be unable to meet payments as they become due. Impaired loans include nonperforming loans but also include loans modified in troubled debt restructurings where concessions have been granted to borrowers experiencing financial difficulties. These concessions could include a reduction in the interest rate on the loan, payment extensions, forgiveness of principal, forbearance, or other actions intended to maximize collection. Accounting Standards Codification (“ASC”) Topic 310, Receivables , requires that impaired loans be measured based on the present value of expected future cash flows discounted at the loans’ effective interest rates or the fair value of the underlying collateral, less costs to sell, and allows existing methods for recognizing interest income.
Troubled Debt Restructurings (TDR)	Troubled Debt Restructurings (“TDR”) The loan portfolio includes certain loans that have been modified in a TDR, where economic concessions have been granted to borrowers who have experienced financial difficulties. These concessions typically result from loss mitigation efforts and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. Certain TDRs are classified as nonperforming at the time of restructuring and typically are returned to performing status after considering the borrower’s sustained repayment performance for a reasonable period, generally not less than six months. When loans are modified in a TDR, any possible impairment similar to other impaired loans is evaluated based on either the present value of expected future cash flows, discounted at the contractual interest rate of the original loan agreement, or the current fair value of the collateral, less selling costs for collateral dependent loans. If it is determined that the value of the modified loan is less than the recorded balance of the loan, impairment is recognized through a specific ALLL or charge-off to the ALLL. In periods subsequent to modification, all TDRs, including those that have payment defaults, are evaluated for possible impairment, and impairment is recognized through the ALLL.
Policy for Charging Off Loans	Policy for Charging Off Loans The Company’s policy is to charge off a loan at any point in time when it no longer can be considered a bankable asset, meaning collectible within the parameters of policy. A secured loan is generally charged down to the estimated fair value of the collateral, less costs to sell, no later than when it is 120 days past due as to principal or interest. An unsecured loan generally is charged off no later than when it is 180 days past due as to principal or interest. A home improvement loan generally is charged off no later than when it is 90 days past due as to principal or interest.
Federal Home Loan Bank (FHLB) of Indianapolis Stock	Federal Home Loan Bank (“FHLB”) of Indianapolis Stock Federal law requires a member institution of the FHLB system to hold common stock of its district FHLB according to a predetermined formula. This investment is stated at cost, which represents redemption value, and may be pledged as collateral for FHLB advances.
Property and Equipment	Premises and Equipment Premises and equipment is stated at cost, less accumulated depreciation. Depreciation is computed on the straight-line method over the estimated useful lives, which range from three to five years for software and equipment, ten years for land improvements, and 39 years for buildings.
Other Real Estate Owned	Other Real Estate Owned Other real estate owned represents real estate acquired through foreclosure or deed in lieu of foreclosure and is recorded at its fair value less estimated costs to sell. When property is acquired, it is recorded at its fair value at the date of acquisition with any resulting write-down charged against the ALLL. Any subsequent deterioration of the property is charged directly to operating expense. Costs relating to the development and improvement of other real estate owned are capitalized, whereas costs relating to holding and maintaining the property are charged to expense as incurred.
Derivative Financial Instruments	Derivative Financial Instruments The Company uses derivative financial instruments to help manage exposure to interest rate risk and the effects that changes in interest rates may have on net income and the fair value of assets and liabilities. The Company enters into interest rate swap agreements as part of its asset liability management strategy to help manage its interest rate risk position. Additionally, the Company enters into forward contracts for the future delivery of mortgage loans to third party investors and enters into interest rate lock commitments ("IRLCs") with potential borrowers to fund specific mortgage loans that will be sold into the secondary market. The forward contracts are entered into in order to economically hedge the effect of changes in interest rates resulting from the Company’s commitment to fund the loans. Designating an interest rate swap as an accounting hedge allows the Company to recognize gains and losses, less any ineffectiveness, in the income statement within the same period that the hedged item affects earnings. The Company includes the gain or loss on the hedged items in the same line item as the offsetting loss or gain on the related interest rate swaps. The fair value of interest rate swaps with a positive fair value are reported in accrued income and other assets in the consolidated balance sheets while interest rate swaps with a negative fair value are reported in accrued expenses and other liabilities in the consolidated balance sheets.
Fair Value Measurements	Fair Value Measurements The Company records or discloses certain assets and liabilities at fair value. ASC Topic 820, Fair Value Measurements , defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements are classified within one of three levels in a valuation hierarchy. ASC Topic 820 describes three levels of inputs that may be used to measure fair value: Level 1 Quoted prices in active markets for identical assets or liabilities Level 2 Observable inputs other than Level 1 prices, 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 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities
Income Taxes	Income Taxes Deferred income tax assets and liabilities reflect the impact of temporary differences between amounts of assets and liabilities for financial reporting purposes and the basis of such assets and liabilities as measured by tax laws and regulations. Deferred income tax expense or benefit is based upon the change in deferred tax assets and liabilities from period to period, subject to an ongoing assessment of realization of deferred tax assets. Deferred tax assets are reduced by a valuation allowance if, based on the weight of evidence available, it is more likely than not that some portion or all of a deferred tax asset will not be realized. The Company files income tax returns in the U.S. federal, Indiana, and other state jurisdictions. With few exceptions, the Company is no longer subject to U.S. federal, state and local examinations by tax authorities for years before 2014. ASC Topic 740-10, Accounting for Uncertainty in Income Taxes , prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. It also provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. The Company did not identify any material uncertain tax positions that it believes should be recognized in the consolidated financial statements.
Earnings Per Share	Earnings Per Share Earnings per share of common stock is based on the weighted-average number of basic shares and dilutive shares outstanding during the year.
Stock Compensation	Share-based Compensation The Company has a share-based compensation plan using the fair value recognition provisions of ASC Topic 718, Compensation - Stock Compensation . The plan is described more fully in Note 10.
Comprehensive Income	Comprehensive Income Comprehensive income consists of net income and other comprehensive income (loss). Other comprehensive income (loss) includes unrealized gains and losses on securities available-for-sale. Reclassification adjustments have been determined for all components of other comprehensive income or loss reported in the consolidated statements of changes in shareholders’ equity.
Statements of Cash Flows	Statements of Cash Flows Cash and cash equivalents are defined to include cash on-hand, noninterest and interest-bearing amounts due from other banks and federal funds sold. Generally, federal funds are sold for one-day periods. The Company reports net cash flows for customer loan transactions and deposit transactions.
Bank Owned Life Insurance	Bank-Owned Life Insurance Bank-owned life insurance policies are carried at their cash surrender value. The Company recognizes tax-free income from the periodic increases in the cash surrender value of these policies and from death benefits.
Goodwill	Goodwill Goodwill is tested at least annually for impairment. If the implied fair value of goodwill is lower than its carrying amount, goodwill impairment is indicated and goodwill is written down to its implied fair value. Subsequent increases in goodwill value are not recognized in the consolidated financial statements.
Reclassifications	Reclassifications Certain reclassifications have been made to the 2016 and 2015 financial statements to conform to the 2017 financial statement presentation. These reclassifications had no effect on net income.

Basis of Presentation and Sum31

Basis of Presentation and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Schedule of Weighted Average Number of Shares	The following is a reconciliation of the weighted-average common shares for the basic and diluted earnings per share computations. Year Ended December 31, 2017 2016 2015 Basic earnings per share Net income available to common shareholders $ 15,226 $ 12,074 $ 8,929 Weighted-average common shares 7,118,628 5,211,209 4,528,528 Basic earnings per common share $ 2.14 $ 2.32 $ 1.97 Diluted earnings per share Net income available to common shareholders $ 15,226 $ 12,074 $ 8,929 Weighted-average common shares 7,118,628 5,211,209 4,528,528 Dilutive effect of warrants 6,120 11,026 10,665 Dilutive effect of equity compensation 24,554 16,847 15,026 Weighted-average common and incremental shares 7,149,302 5,239,082 4,554,219 Diluted earnings per common share $ 2.13 $ 2.30 $ 1.96

Securities (Tables)

Securities (Tables)	12 Months Ended
	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-sale Securities Reconciliation	December 31, 2016 Amortized Gross Unrealized Fair Cost Gains Losses Value Securities available-for-sale U.S. Government-sponsored agencies $ 92,599 $ 167 $ (870 ) $ 91,896 Municipal securities 97,647 85 (5,846 ) 91,886 Mortgage-backed securities 238,354 — (6,713 ) 231,641 Asset-backed securities 19,470 65 (1 ) 19,534 Corporate securities 20,000 — (1,189 ) 18,811 Other securities 3,000 — (68 ) 2,932 Total available-for-sale $ 471,070 $ 317 $ (14,687 ) $ 456,700 December 31, 2017 and 2016 . There were no securities held-to-maturity as of December 31, 2016 . December 31, 2017 Amortized Gross Unrealized Fair Cost Gains Losses Value Securities available-for-sale U.S. Government-sponsored agencies $ 133,424 $ 531 $ (765 ) $ 133,190 Municipal securities 97,370 366 (1,359 ) 96,377 Mortgage-backed securities 215,452 15 (5,747 ) 209,720 Asset-backed securities 5,000 9 — 5,009 Corporate securities 27,111 103 (1,167 ) 26,047 Other securities 3,000 — (68 ) 2,932 Total available-for-sale $ 481,357 $ 1,024 $ (9,106 ) $ 473,275
Schedule Of Held-To-Maturity Securities Reconciliation	December 31, 2016 Amortized Gross Unrealized Fair Cost Gains Losses Value Securities held-to-maturity Municipal securities $ 10,171 $ — $ (498 ) $ 9,673 Corporate securities 6,500 24 — 6,524 Total held-to-maturity $ 16,671 $ 24 $ (498 ) $ 16,197 December 31, 2017 Amortized Gross Unrealized Fair Cost Gains Losses Value Securities held-to-maturity Municipal securities $ 10,164 $ 40 $ (357 ) $ 9,847 Corporate securities 9,045 191 — 9,236 Total held-to-maturity $ 19,209 $ 231 $ (357 ) $ 19,083
Investments Classified by Contractual Maturity Date	The carrying value of securities at December 31, 2017 is shown below by their contractual maturity date. Actual maturities will differ because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Available-for-Sale Amortized Fair Within one year $ — $ — One to five years 826 791 Five to ten years 35,981 35,214 After ten years 221,098 219,609 257,905 255,614 Mortgage-backed securities 215,452 209,720 Asset-backed securities 5,000 5,009 Other securities 3,000 2,932 Total $ 481,357 $ 473,275 Held-to-Maturity Amortized Cost Fair Value Five to ten years $ 12,442 $ 12,487 After ten years 6,767 6,596 Total $ 19,209 $ 19,083
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	The following tables show the securities portfolio’s gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2017 and 2016 : December 31, 2017 Less Than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Securities available-for-sale U.S. Government-sponsored agencies $ 30,194 $ (256 ) $ 22,824 $ (509 ) $ 53,018 $ (765 ) Municipal securities 5,638 (77 ) 57,128 (1,282 ) 62,766 (1,359 ) Mortgage-backed securities 29,542 (251 ) 177,266 (5,496 ) 206,808 (5,747 ) Corporate securities 1,852 (148 ) 18,981 (1,019 ) 20,833 (1,167 ) Other securities — — 2,932 (68 ) 2,932 (68 ) Total $ 67,226 $ (732 ) $ 279,131 $ (8,374 ) $ 346,357 $ (9,106 ) December 31, 2017 Less Than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Securities held-to-maturity Municipal securities $ 8,255 $ (357 ) $ — $ — $ 8,255 $ (357 ) Total $ 8,255 $ (357 ) $ — $ — $ 8,255 $ (357 ) December 31, 2016 Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Securities available-for-sale U.S. Government-sponsored agencies $ 68,625 $ (840 ) $ 260 $ (30 ) $ 68,885 $ (870 ) Municipals 86,424 (5,846 ) — — 86,424 (5,846 ) Mortgage-backed securities 231,641 (6,713 ) — — 231,641 (6,713 ) Asset-backed securities — — 4,520 (1 ) 4,520 (1 ) Corporate securities — — 18,811 (1,189 ) 18,811 (1,189 ) Other securities 2,932 (68 ) — — 2,932 (68 ) Total $ 389,622 $ (13,467 ) $ 23,591 $ (1,220 ) $ 413,213 $ (14,687 )
Held to Maturity, Continuous Unrealized Loss Position, Fair Value	December 31, 2017 Less Than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Securities held-to-maturity Municipal securities $ 8,255 $ (357 ) $ — $ — $ 8,255 $ (357 ) Total $ 8,255 $ (357 ) $ — $ — $ 8,255 $ (357 ) December 31, 2016 Less Than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Securities held-to-maturity Municipal securities $ 9,673 $ (498 ) $ — $ — $ 9,673 $ (498 ) Total $ 9,673 $ (498 ) $ — $ — $ 9,673 $ (498 )
Other than Temporary Impairment, Credit Losses Recognized in Earnings
Schedule of Accumulated Other Comprehensive Income (Loss)	Amounts reclassified from accumulated other comprehensive loss and the affected line items in the consolidated statements of income during the years ended December 31, 2017 , 2016 and 2015 were as follows: Details About Accumulated Other Comprehensive Loss Components Amounts Reclassified from Accumulated Other Comprehensive Loss for the Year Ended December 31, Affected Line Item in the Statements of Income 2017 2016 2015 Unrealized gains and losses on securities available-for-sale Gain (loss) realized in earnings $ (8 ) $ 177 $ — Gain (loss) on sale of securities Total reclassified amount before tax (8 ) 177 — Income before income taxes Tax expense (benefit) (3 ) 63 — Income tax provision Total reclassifications out of accumulated other comprehensive loss $ (5 ) $ 114 $ — Net Income

Loans (Tables)

Loans (Tables)	12 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable	Categories of loans include: December 31, 2017 2016 Commercial loans Commercial and industrial $ 122,940 $ 102,437 Owner-occupied commercial real estate 75,768 57,668 Investor commercial real estate 7,273 13,181 Construction 49,213 53,291 Single tenant lease financing 803,299 606,568 Public finance 438,341 — Healthcare finance 31,573 — Total commercial loans 1,528,407 833,145 Consumer loans Residential mortgage 299,935 205,554 Home equity 30,554 35,036 Other consumer 227,533 173,449 Total consumer loans 558,022 414,039 Total commercial and consumer loans 2,086,429 1,247,184 Net deferred loan origination costs and premiums and discounts on purchased loans 4,764 3,605 Total loans 2,091,193 1,250,789 Allowance for loan losses (14,970 ) (10,981 ) Net loans $ 2,076,223 $ 1,239,808
Allowance for Credit Losses on Financing Receivables	Twelve Months Ended December 31, 2017 Balance, beginning of period Provision (credit) charged to expense Losses charged off Recoveries Balance, end of period Allowance for loan losses: Commercial and industrial $ 1,352 $ 588 $ (271 ) $ 69 $ 1,738 Owner-occupied commercial real estate 582 221 — — 803 Investor commercial real estate 168 (83 ) — — 85 Construction 544 (121 ) — — 423 Single tenant lease financing 6,248 1,624 — — 7,872 Public finance — 959 — — 959 Healthcare finance — 313 — — 313 Residential mortgage 754 314 (116 ) 4 956 Home equity 102 (55 ) — 23 70 Other consumer 1,231 1,112 (895 ) 303 1,751 Total $ 10,981 $ 4,872 $ (1,282 ) $ 399 $ 14,970 Twelve Months Ended December 31, 2016 Balance, beginning of period Provision (credit) charged to expense Losses charged off Recoveries Balance, end of period Allowance for loan losses: Commercial and industrial $ 1,367 $ 1,380 $ (1,582 ) $ 187 $ 1,352 Owner-occupied commercial real estate 476 106 — — 582 Investor commercial real estate 212 (44 ) — — 168 Construction 500 44 — — 544 Single tenant lease financing 3,931 2,317 — — 6,248 Residential mortgage 896 (38 ) (134 ) 30 754 Home equity 125 (3 ) (33 ) 13 102 Other consumer 844 568 (440 ) 259 1,231 Total $ 8,351 $ 4,330 $ (2,189 ) $ 489 $ 10,981 Twelve Months Ended December 31, 2015 Balance, beginning of period Provision (credit) charged to expense Losses charged off Recoveries Balance, end of period Allowance for loan losses: Commercial and industrial $ 920 $ 447 $ — $ — $ 1,367 Owner-occupied commercial real estate 345 131 — — 476 Investor commercial real estate 261 (549 ) — 500 212 Construction 330 170 — — 500 Single tenant lease financing 2,061 1,870 — — 3,931 Residential mortgage 985 (311 ) (185 ) 407 896 Home equity 207 (83 ) — 1 125 Other consumer 691 271 (451 ) 333 844 Total $ 5,800 $ 1,946 $ (636 ) $ 1,241 $ 8,351 The following tables present the balance in the allowance for loan losses and the recorded investment in loans based on portfolio segment and impairment method as of December 31, 2017 and 2016 . Loans Allowance for Loan Losses December 31, 2017 Ending Balance: Collectively Evaluated for Impairment Ending Balance: Individually Evaluated for Impairment Ending Balance Ending Balance: Ending Balance: Ending Balance Commercial and industrial $ 119,054 $ 3,886 $ 122,940 $ 1,738 $ — $ 1,738 Owner-occupied commercial real estate 75,761 7 75,768 803 — 803 Investor commercial real estate 7,273 — 7,273 85 — 85 Construction 49,213 — 49,213 423 — 423 Single tenant lease financing 803,299 — 803,299 7,872 — 7,872 Public finance 438,341 — 438,341 959 — 959 Healthcare finance 31,573 — 31,573 313 — 313 Residential mortgage 298,796 1,139 299,935 956 — 956 Home equity 30,471 83 30,554 70 — 70 Other consumer 227,443 90 227,533 1,751 — 1,751 Total $ 2,081,224 $ 5,205 $ 2,086,429 $ 14,970 $ — $ 14,970 Loans Allowance for Loan Losses December 31, 2016 Ending Balance: Collectively Evaluated for Impairment Ending Balance: Individually Evaluated for Impairment Ending Balance Ending Balance: Ending Balance: Ending Balance Commercial and industrial $ 102,437 $ — $ 102,437 $ 1,352 $ — $ 1,352 Owner-occupied commercial real estate 57,668 — 57,668 582 — 582 Investor commercial real estate 13,181 — 13,181 168 — 168 Construction 53,291 — 53,291 544 — 544 Single tenant lease financing 606,568 — 606,568 6,248 — 6,248 Residential mortgage 203,842 1,712 205,554 754 — 754 Home equity 35,036 — 35,036 102 — 102 Other consumer 173,321 128 173,449 1,231 — 1,231 Total $ 1,245,344 $ 1,840 $ 1,247,184 $ 10,981 $ — $ 10,981
Financing Receivable Credit Quality Indicators	The following tables present the credit risk profile of the Company’s commercial and consumer loan portfolios based on rating category and payment activity as of December 31, 2017 and 2016 . December 31, 2017 Pass Special Mention Substandard Total Commercial and industrial $ 113,840 $ 5,203 $ 3,897 $ 122,940 Owner-occupied commercial real estate 72,995 2,766 7 75,768 Investor commercial real estate 7,273 — — 7,273 Construction 49,213 — — 49,213 Single tenant lease financing 796,307 6,992 — 803,299 Public finance 438,341 — — 438,341 Healthcare finance 31,573 — — 31,573 Total commercial loans $ 1,509,542 $ 14,961 $ 3,904 $ 1,528,407 December 31, 2017 Performing Nonaccrual Total Residential mortgage $ 299,211 $ 724 $ 299,935 Home equity 30,471 83 30,554 Other consumer 227,501 32 227,533 Total $ 557,183 $ 839 $ 558,022 December 31, 2016 Pass Special Mention Substandard Total Commercial and industrial $ 99,200 $ 2,746 $ 491 $ 102,437 Owner-occupied commercial real estate 57,657 — 11 57,668 Investor commercial real estate 13,181 — — 13,181 Construction 53,291 — — 53,291 Single tenant lease financing 605,190 1,378 — 606,568 Total commercial loans $ 828,519 $ 4,124 $ 502 $ 833,145 December 31, 2016 Performing Nonaccrual Total Residential mortgage $ 204,530 $ 1,024 $ 205,554 Home equity 35,036 — 35,036 Other consumer 173,390 59 173,449 Total $ 412,956 $ 1,083 $ 414,039
Past Due Financing Receivables	The following tables present the Company’s loan portfolio delinquency analysis as of December 31, 2017 and 2016 . December 31, 2017 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Total Past Due Current Total loans Nonaccrual Loans Total Loans 90 Days or More Past Due and Accruing Commercial and industrial $ — $ 10 $ — $ 10 $ 122,930 $ 122,940 $ — $ — Owner-occupied commercial real estate — — — — 75,768 75,768 — — Investor commercial real estate — — — — 7,273 7,273 — — Construction — — — — 49,213 49,213 — — Single tenant lease financing — — — — 803,299 803,299 — — Public finance — — — — 438,341 438,341 — — Healthcare finance — — — — 31,573 31,573 — — Residential mortgage — 23 560 583 299,352 299,935 724 — Home equity — — 83 83 30,471 30,554 83 — Other consumer 299 110 6 415 227,118 227,533 32 — Total $ 299 $ 143 $ 649 $ 1,091 $ 2,085,338 $ 2,086,429 $ 839 $ — December 31, 2016 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Total Past Due Current Total loans Nonaccrual Loans Total Loans 90 Days or More Past Due and Accruing Commercial and industrial $ 27 $ — $ — $ 27 $ 102,410 $ 102,437 $ — $ — Owner-occupied commercial real estate — — — — 57,668 57,668 — — Investor commercial real estate — — — — 13,181 13,181 — — Construction — — — — 53,291 53,291 — — Single tenant lease financing — — — — 606,568 606,568 — — Residential mortgage — 347 991 1,338 204,216 205,554 1,024 — Home equity — — — — 35,036 35,036 — — Other consumer 173 91 25 289 173,160 173,449 59 — Total $ 200 $ 438 $ 1,016 $ 1,654 $ 1,245,530 $ 1,247,184 $ 1,083 $ —
Impaired Financing Receivables	The following tables present the Company’s impaired loans as of December 31, 2017 and 2016 . There were no impaired loans with a specific valuation allowance as of December 31, 2017 and 2016 . December 31, 2017 December 31, 2016 Recorded Unpaid Specific Recorded Unpaid Specific Loans without a specific valuation allowance Commercial and industrial $ 3,886 $ 3,886 $ — $ — $ — $ — Owner-occupied commercial real estate 7 7 — — — — Residential mortgage 1,139 1,144 — 1,712 1,824 — Home equity 83 83 — — — — Other consumer 90 143 — 128 184 — Total impaired loans $ 5,205 $ 5,263 $ — $ 1,840 $ 2,008 $ — The table below presents average balances and interest income recognized for impaired loans during the twelve months ended December 31, 2017 , 2016 , and 2015 . Twelve Months Ended December 31, 2017 December 31, 2016 December 31, 2015 Average Interest Average Interest Average Interest Loans without a specific valuation allowance Commercial and industrial $ 2,942 $ 146 $ — $ — $ — $ — Owner-occupied commercial real estate 3 — — — — — Investor commercial real estate — — — — 21 2 Residential mortgage 1,546 6 1,595 8 1,112 8 Home equity 5 — — — — — Other consumer 105 4 149 5 193 16 Total 4,601 156 1,744 13 1,326 26 Loans with a specific valuation allowance Commercial and industrial 35 — 1,084 — — — Residential mortgage — — — — 15 — Other consumer — — — — 13 1 Total 35 — 1,084 — 28 1 Total impaired loans $ 4,636 $ 156 $ 2,828 $ 13 $ 1,354 $ 27

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Premises and Equipment	remises and equipment at December 31, 2017 and 2016 . December 31, 2017 2016 Land $ 2,500 $ 2,500 Building and improvements 6,427 5,441 Furniture and equipment 7,610 7,079 Less: accumulated depreciation (6,479 ) (4,976 ) $ 10,058 $ 10,044

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2017
Banking and Thrift [Abstract]
Schedule of deposits	The following table presents the composition of the Company’s deposit base as of December 31, 2017 and 2016 . December 31, 2017 2016 Noninterest-bearing demand deposit accounts $ 44,686 $ 31,166 Interest-bearing demand deposit accounts 94,674 93,074 Regular savings accounts 49,939 27,955 Money market accounts 499,501 340,240 Certificates of deposits 1,319,488 964,819 Brokered deposits 76,653 5,613 Total deposits $ 2,084,941 $ 1,462,867 Certificates of deposit (in the amount of $250 or more) $ 453,034 $ 295,578
Schedule of certificates of deposits scheduled maturities	The following table presents scheduled certificates of deposits and brokered deposits maturities by year as of December 31, 2017 . 2018 $ 680,686 2019 179,513 2020 126,603 2021 315,318 2022 80,753 Thereafter 13,268 $ 1,396,141

FHLB Advances (Tables)

FHLB Advances (Tables)	12 Months Ended
	Dec. 31, 2017
Banking and Thrift [Abstract]
Schedule of Federal Home Loan Bank, Advances, by Branch of FHLB Bank	The Company’s FHLB advances are scheduled to mature according to the following schedule: Amount 2018 $ 55,000 2019 30,000 2020 — 2021 — 2022 110,000 Thereafter 215,000 410,000 Net deferred prepayment gain on advance restructure 176 $ 410,176

Subordinated Debt Subordinated

Subordinated Debt Subordinated Debt (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Schedule of Subordinated Borrowing	December 31, 2017 December 31, 2016 Principal Unamortized Discount and Debt Issuance Costs Principal Unamortized Discount and Debt Issuance Costs 2021 Debenture $ 3,000 — 3,000 — 2025 Note 10,000 (186 ) 10,000 (210 ) 2026 Notes 25,000 (1,088 ) 25,000 (1,212 ) Total $ 38,000 (1,274 ) 38,000 (1,422 )

Benefit Plans (Tables)

Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2017
Retirement Benefits [Abstract]
Nonvested Restricted Stock Shares Activity	The following table summarizes the status of the 2013 Plan awards as of December 31, 2017 , and activity for the year ended December 31, 2017 : Restricted Stock Units Weighted-Average Grant Date Fair Value Per Share Restricted Stock Awards Weighted-Average Grant Date Fair Value Per Share Deferred Stock Units Weighted-Average Grant Date Fair Value Per Unit Nonvested at January 1, 2017 49,781 $ 23.07 16,330 $ 19.06 — $ — Granted 42,819 30.99 5,628 31.00 7 30.46 Vested (19,835 ) 22.43 (18,625 ) 21.71 (7 ) 30.46 Forfeited — — — — — — Nonvested at December 31, 2017 72,765 $ 27.91 3,333 $ 24.44 — $ —
Schedule Of Deferred Stock Option Plan	The following table summarizes the status of deferred stock rights related to the Directors Deferred Stock Plan for the year ended December 31, 2017 . Deferred Rights Outstanding, beginning of year 82,377 Granted 618 Exercised — Outstanding, end of year 82,995

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	The provision for income taxes consists of the following: December 31, 2017 2016 2015 Current $ 10,998 $ 2,367 $ 4,293 Deferred (5,142 ) 3,544 443 Net deferred tax asset revaluation 1,846 — — Total $ 7,702 $ 5,911 $ 4,736
Schedule of Effective Income Tax Rate Reconciliation	Income tax provision is reconciled to the statutory rate applied to pre-tax income. The statutory rate was 35% , 34% and 34% at December 31, 2017, 2016 and 2015, respectively. December 31, 2017 2016 2015 Statutory rate times pre-tax income $ 8,025 $ 6,115 $ 4,646 Add (subtract) the tax effect of: Income from tax-exempt securities and loans (2,512 ) (635 ) (132 ) State income tax, net of federal tax effect 693 567 154 Bank-owned life insurance (318 ) (159 ) (137 ) Net deferred tax asset revaluation 1,846 — — Other differences (32 ) 23 205 Total income taxes $ 7,702 $ 5,911 $ 4,736
Schedule of Deferred Tax Assets and Liabilities	The net deferred tax asset at December 31 consists of the following: December 31, 2017 2016 Deferred tax assets (liabilities) Allowance for loan losses $ 3,873 $ 4,269 Unrealized loss on available-for-sale securities 1,939 5,112 Fair value adjustments (2,213 ) (5,994 ) Depreciation (263 ) (525 ) Deferred compensation and accrued payroll 1,051 1,234 Loan origination costs (783 ) (955 ) Prepaid assets (288 ) (276 ) Other 69 397 Total deferred tax assets, net $ 3,385 $ 3,262

Regulatory Capital Requiremen40

Regulatory Capital Requirements (Tables)	12 Months Ended
	Dec. 31, 2017
Banking and Thrift [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	The following tables present actual and required capital ratios as of December 31, 2017 and 2016 for the Company and the Bank under the Basel III Capital Rules. The minimum required capital amounts presented include the minimum required capital levels as of December 31, 2017 and 2016 based on the phase-in provisions of the Basel III Capital Rules and the minimum required capital levels as of January 1, 2019 when the Basel III Capital Rules have been fully phased-in, in each case, including the capital conservation buffer required during such period. Capital levels required to be considered well capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. Actual Minimum Capital Required - Basel III Phase-In Schedule Minimum Capital Required - Basel III Fully Phased-In Minimum Required to be Considered Well Capitalized Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio As of December 31, 2017: Common equity tier 1 capital to risk-weighted assets Consolidated $ 224,407 11.43 % $ 112,866 5.75 % $ 137,402 7.00 % N/A N/A Bank 223,288 11.40 % 112,672 5.75 % 137,166 7.00 % 127,368 6.50 % Tier 1 capital to risk-weighted assets Consolidated 224,407 11.43 % 142,309 7.25 % 166,845 8.50 % N/A N/A Bank 223,288 11.40 % 142,064 7.25 % 166,558 8.50 % 156,761 8.00 % Total capital to risk-weighted assets Consolidated 276,103 14.07 % 181,566 9.25 % 206,102 10.50 % N/A N/A Bank 238,258 12.16 % 181,255 9.25 % 205,748 10.50 % 195,951 10.00 % Leverage ratio Consolidated 224,407 8.45 % 106,196 4.00 % 106,196 4.00 % N/A N/A Bank 223,288 8.42 % 106,059 4.00 % 106,059 4.00 % 132,574 5.00 % Actual Minimum Capital Required - Basel III Phase-In Schedule Minimum Capital Required - Basel III Fully Phased-In Minimum Required to be Considered Well Capitalized Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio As of December 31, 2016: Common equity tier 1 capital to risk-weighted assets Consolidated $ 158,479 11.54 % $ 70,366 5.13 % $ 96,110 7.00 % N/A N/A Bank 162,617 11.88 % 70,145 5.13 % 95,807 7.00 % 88,964 6.50 % Tier 1 capital to risk-weighted assets Consolidated 158,479 11.54 % 90,961 6.63 % 116,705 8.50 % N/A N/A Bank 162,617 11.88 % 90,675 6.63 % 116,337 8.50 % 109,494 8.00 % Total capital to risk-weighted assets Consolidated 206,038 15.01 % 118,421 8.63 % 144,165 10.50 % N/A N/A Bank 173,598 12.68 % 118,048 8.63 % 143,711 10.50 % 136,868 10.00 % Leverage ratio Consolidated 158,479 8.65 % 73,311 4.00 % 73,311 4.00 % N/A N/A Bank 162,617 8.89 % 73,186 4.00 % 73,186 4.00 % 91,483 5.00 %

Commitments and Credit Risk (Ta

Commitments and Credit Risk (Tables)	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases	Future minimum cash lease payments are as follows: Amount 2018 $ 733 2019 747 2020 760 2021 315 2022 229 Thereafter 116 Total minimum payments required 1 $ 2,900 1 Minimum payments have not been reduced by minimum sublease rentals of $1.6 million due in the future under noncancelable subleases.

Fair Value of Financial Instr42

Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables present the fair value measurements of assets and liabilities recognized in the accompanying consolidated balance sheets measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fall at December 31, 2017 and 2016 . December 31, 2017 Fair Value Measurements Using Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) U.S. Government-sponsored agencies $ 133,190 $ — $ 133,190 $ — Municipal securities 96,377 — 96,377 — Mortgage-backed securities 209,720 — 209,720 — Asset-backed securities 5,009 — 5,009 — Corporate securities 26,047 — 26,047 — Other securities 2,932 2,932 — — Total available-for-sale securities $ 473,275 $ 2,932 $ 470,343 $ — Interest rate swaps (271 ) — (271 ) — Loans held-for-sale (mandatory pricing agreements) 23,571 — 23,571 — Forward contracts (80 ) (80 ) — — IRLCs 551 — — 551 December 31, 2016 Fair Value Measurements Using Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) U.S. Government-sponsored agencies $ 91,896 $ — $ 91,896 $ — Municipal securities 91,886 — 91,886 — Mortgage-backed securities 231,641 — 231,641 — Asset-backed securities 19,534 — 19,534 — Corporate securities 18,811 18,811 Other securities 2,932 2,932 — — Total available-for-sale securities $ 456,700 $ 2,932 $ 453,768 $ — Loans held-for-sale (mandatory pricing agreements) 27,101 — 27,101 — Forward contracts 438 438 — — IRLCs 610 — — 610
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation	The following table reconciles the beginning and ending balances of recurring fair value measurements recognized in the accompanying consolidated balance sheets using significant unobservable (Level 3) inputs. Interest Rate Balance as of January 1, 2015 $ 521 Total realized gains (losses) Included in net income 61 Included in other comprehensive income — Sales — Balance, December 31, 2015 582 Total realized gains Included in net income 28 Balance, December 31, 2016 610 Total realized gains Included in net income (59 ) Balance, December 31, 2017 $ 551
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques	The following tables present quantitative information about unobservable inputs used in recurring and nonrecurring Level 3 fair value measurements other than goodwill. Fair Value at Valuation Unobservable Range IRLCs $ 551 Discounted cash flow Loan closing rates 39% - 100% Fair Value at Valuation Unobservable Range IRLCs $ 610 Discounted cash flow Loan closing rates 43% - 99%
Fair Value, by Balance Sheet Grouping	The following tables summarize the carrying value and estimated fair value of all financial assets and liabilities at December 31, 2017 and 2016 : December 31, 2017 Fair Value Measurements Using Carrying Amount Fair Value Quoted Prices In Active Market for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Cash and cash equivalents $ 47,981 $ 47,981 $ 47,981 $ — $ — Held-to-maturity securities 19,209 19,083 — 19,083 — Loans held-for-sale (best efforts pricing agreements) 27,835 27,835 — 27,835 — Net loans 2,091,193 2,051,545 — — 2,051,545 Accrued interest receivable 11,944 11,944 11,944 — — Federal Home Loan Bank of Indianapolis stock 19,575 19,575 — 19,575 — Deposits 2,084,941 2,057,708 688,800 — 1,368,908 Advances from Federal Home Loan Bank 410,176 397,950 — 397,950 — Subordinated debt 36,726 39,972 26,520 13,452 — Accrued interest payable 311 311 311 — — December 31, 2016 Fair Value Measurements Using Carrying Amount Fair Value Quoted Prices In Active Market for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Cash and cash equivalents $ 39,452 $ 39,452 $ 39,452 $ — $ — Interest-bearing time deposits 250 250 250 — — Held-to-maturity securities 16,671 16,197 — 16,197 — Net loans 1,250,789 1,244,918 — — 1,244,918 Accrued interest receivable 6,708 6,708 6,708 — — Federal Home Loan Bank of Indianapolis stock 8,910 8,910 — 8,910 — Deposits 1,462,867 1,441,794 492,435 — 949,359 Advances from Federal Home Loan Bank 189,981 186,258 — 186,258 — Subordinated debt 36,578 38,425 24,900 13,525 — Accrued interest payable 112 112 112 — —

Mortgage Banking Activities (Ta

Mortgage Banking Activities (Tables)	12 Months Ended
	Dec. 31, 2017
Mortgage Banking [Abstract]
Schedule of Participating Mortgage Loans	The following table provides the components of income from mortgage banking activities for the years ended December 31, 2017 , 2016 , and 2015 . Year Ended December 31, 2017 2016 2015 Gain on loans sold $ 7,775 $ 12,462 $ 8,845 Gain (loss) resulting from the change in fair value of loans held-for-sale 638 (500 ) (341 ) Gain (loss) resulting from the change in fair value of derivatives (577 ) 436 496 Net revenue from mortgage banking activities $ 7,836 $ 12,398 $ 9,000

Derivative Financial Instrume44

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule Of Derivative Instruments, Cumulative Basis Adjustments	The following table presents amounts that were recorded on the balance sheet related to cumulative basis adjustments for interest rate swap derivatives designated as fair value accounting hedges as of December 31, 2017 and 2016. Carrying amount of the hedged assets Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged assets Line item in the consolidated balance sheet in which the hedged item is included December 31, 2017 December 31, 2016 December 31, 2017 December 31, 2016 Loans $ 91,653 $ — $ (263 ) $ — Securities available-for-sale (1) 92,230 — (8 ) — (1) These amounts include the amortized cost basis of closed portfolios used to designate hedging relationships in which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. At December 31, 2017 and 2016, the amounts of the designated hedged items were $50.0 million and $0.0 million , respectively.
Schedule Of Derivative Instruments Of Fixed Rate Receivables	The following table presents a summary of interest rate swap derivatives designated as fair value accounting hedges of fixed-rate receivables used in the Company's asset/liability management activities at December 31, 2017, identified by the underlying interest rate-sensitive instruments. Weighted Average Remaining Maturity (years) Weighted-Average Rate Instruments Associated With Notional Value Fair Value Receive Pay Loans $ 91,135 7.9 $ (263 ) 3 month LIBOR 2.44% Securities available-for-sale 50,000 6.8 (8 ) 3 month LIBOR 2.33% Total swap portfolio at December 31, 2017 $ 141,135 7.5 $ (271 ) 3 month LIBOR 2.41%
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The following table presents the notional amount and fair value of interest rate swaps, IRLCs and forward contracts utilized by the Company at December 31, 2017 and 2016 . December 31, 2017 December 31, 2016 Notional Fair Notional Fair Asset Derivatives Derivatives designated as hedging instruments Interest rate swaps associated with loans $ 17,900 $ 3 $ — $ — Derivatives not designated as hedging instruments IRLCs 26,394 551 36,311 610 Forward contracts 51,124 (80 ) 61,000 438 Total contracts $ 95,418 $ 474 $ 97,311 $ 1,048 Liability Derivatives Derivatives designated as hedging instruments Interest rate swaps associated with loans $ 73,235 $ (266 ) $ — $ — Interest rate swaps associated with securities available-for-sale 50,000 (8 ) — — Total contracts $ 123,235 $ (274 ) $ — $ —
Schedule Of Derivative Instruments In Statements Of Income Fair Value	Fair values of IRLCs and forward contracts were estimated using changes in mortgage interest rates from the date the Company entered into the IRLC and the balance sheet date. The following table summarizes the periodic changes in the fair value of the derivative financial instruments on the consolidated statements of income for the twelve months ended December 31, 2017 , 2016 , and 2015 . The derivatives designated as hedging instruments had no impact on the consolidated statements of income for the twelve months ended December 31, 2017, 2016 and 2015. Amount of gain / (loss) recognized in the twelve months ended December 31, 2017 December 31, 2016 December 31, 2015 Asset Derivatives Derivatives not designated as hedging instruments IRLCs (59 ) 28 61 Forward contracts (519 ) 408 435

Condensed Financial Informati45

Condensed Financial Information (Parent Company Only) (Tables)	12 Months Ended
	Dec. 31, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Schedule Of Condensed Balance Sheet Of Parent Company Only	Condensed Balance Sheets Year Ended December 31, 2017 2016 Assets Cash and cash equivalents $ 32,810 $ 29,365 Investment in common stock of subsidiaries 223,008 158,080 Premises and equipment, net 6,576 6,852 Accrued income and other assets 3,114 1,488 Total assets $ 265,508 $ 195,785 Liabilities and shareholders’ equity Subordinated debt, net of unamortized discounts and debt issuance costs of $1,274 in 2017 and $1,422 in 2016 $ 36,726 $ 36,578 Note payable to the Bank 3,600 4,000 Accrued expenses and other liabilities 1,055 1,265 Total liabilities 41,381 41,843 Shareholders’ equity 224,127 153,942 Total liabilities and shareholders’ equity $ 265,508 $ 195,785
Schedule Of Condensed Income Statement Of Parent Company Only	Year Ended December 31, 2017 2016 Assets Cash and cash equivalents $ 32,810 $ 29,365 Investment in common stock of subsidiaries 223,008 158,080 Premises and equipment, net 6,576 6,852 Accrued income and other assets 3,114 1,488 Total assets $ 265,508 $ 195,785 Liabilities and shareholders’ equity Subordinated debt, net of unamortized discounts and debt issuance costs of $1,274 in 2017 and $1,422 in 2016 $ 36,726 $ 36,578 Note payable to the Bank 3,600 4,000 Accrued expenses and other liabilities 1,055 1,265 Total liabilities 41,381 41,843 Shareholders’ equity 224,127 153,942 Total liabilities and shareholders’ equity $ 265,508 $ 195,785 Condensed Statements of Income
Comprehensive Income (Loss)	Condensed Statements of Comprehensive Income Year Ended December 31, 2017 2016 2015 Net income $ 15,226 $ 12,074 $ 8,929 Other comprehensive income (loss) Net unrealized holding gains (losses) on securities available-for-sale 6,280 (12,315 ) (1,669 ) Reclassification adjustment for losses (gains) realized 8 (177 ) — Other comprehensive income (loss) before tax 6,288 (12,492 ) (1,669 ) Income tax provision (benefit) 2,039 (4,433 ) (595 ) Other comprehensive income (loss) - net of tax 4,249 (8,059 ) (1,074 ) Comprehensive income $ 19,475 $ 4,015 $ 7,855
Schedule Of Condensed Cash Flow Statement Of Parent Company Only	Condensed Statements of Cash Flows Year Ended December 31, 2017 2016 2015 Operating activities Net income $ 15,226 $ 12,074 $ 8,929 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed net income of subsidiaries (17,989 ) (14,148 ) (10,488 ) Depreciation and amortization 572 461 246 Share-based compensation expense 175 128 150 Net change in other assets (1,453 ) (696 ) 958 Net change in other liabilities (326 ) 870 (275 ) Net cash used in operating activities (3,795 ) (1,311 ) (480 ) Investing activities Capital contribution to the Bank (42,000 ) (43,500 ) (10,000 ) Purchase of premises and equipment (148 ) (1,423 ) (1,407 ) Net cash used in investing activities (42,148 ) (44,923 ) (11,407 ) Financing activities Cash dividends paid (1,675 ) (1,199 ) (1,093 ) Net proceeds from issuance of subordinated debt — 23,757 9,761 Principal payment on loan from the Bank (400 ) — — Net proceeds from common stock issuance 51,636 46,223 — Other, net (173 ) (42 ) 23 Net cash provided by financing activities 49,388 68,739 8,691 Net increase (decrease) in cash and cash equivalents 3,445 22,505 (3,196 ) Cash and cash equivalents at beginning of year 29,365 6,860 10,056 Cash and cash equivalents at end of year $ 32,810 $ 29,365 $ 6,860

Quarterly Financial Data (una46

Quarterly Financial Data (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information [Table Text Block]	Three Months Ended December 31, September 30, June 30, March 31, Income Statement Data: Interest income $ 24,638 $ 22,694 $ 19,975 $ 17,390 Interest expense 9,278 8,503 7,001 5,933 Net interest income 15,360 14,191 12,974 11,457 Provision for loan losses 1,179 1,336 1,322 1,035 Net interest income after provision for loan losses 14,181 12,855 11,652 10,422 Noninterest income 2,539 3,135 2,736 2,131 Noninterest expense 9,701 9,401 8,923 8,698 Income before income taxes 7,019 6,589 5,465 3,855 Income tax provision 3,521 1,694 1,464 1,023 Net income $ 3,498 $ 4,895 $ 4,001 $ 2,832 Per Share Data: Net income Basic $ 0.41 $ 0.72 $ 0.61 $ 0.43 Diluted $ 0.41 $ 0.71 $ 0.61 $ 0.43 Weighted average common shares outstanding Basic 8,490,951 6,834,011 6,583,515 6,547,807 Diluted 8,527,599 6,854,614 6,597,991 6,602,200 Three Months Ended December 31, September 30, June 30, March 31, Income Statement Data: Interest income $ 16,764 $ 15,471 $ 13,971 $ 12,693 Interest expense 5,860 5,133 4,665 3,552 Net interest income 10,904 10,338 9,306 9,141 Provision for loan losses 256 2,204 924 946 Net interest income after provision for loan losses 10,648 8,134 8,382 8,195 Noninterest income 2,891 4,898 3,748 2,540 Noninterest expense 8,158 8,413 7,875 7,005 Income before income taxes 5,381 4,619 4,255 3,730 Income tax provision 1,671 1,521 1,421 1,298 Net income $ 3,710 $ 3,098 $ 2,834 $ 2,432 Per Share Data: Net income Basic $ 0.65 $ 0.55 $ 0.57 $ 0.54 Diluted $ 0.64 $ 0.55 $ 0.57 $ 0.53 Weighted average common shares outstanding Basic 5,722,615 5,597,867 4,972,759 4,541,728 Diluted 5,761,931 5,622,181 4,992,025 4,575,555

Basis of Presentation and Sum47

Basis of Presentation and Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Net income	$ 3,498	$ 4,895	$ 4,001	$ 2,832	$ 3,710	$ 3,098	$ 2,834	$ 2,432	$ 15,226	$ 12,074	$ 8,929
Weighted-average common shares (in shares)	8,490,951	6,834,011	6,583,515	6,547,807	5,722,615	5,597,867	4,972,759	4,541,728	7,118,628	5,211,209	4,528,528
Basic earnings per share
Basic earnings per common share (in dollars per share)	$ 0.41	$ 0.72	$ 0.61	$ 0.43	$ 0.65	$ 0.55	$ 0.57	$ 0.54	$ 2.14	$ 2.32	$ 1.97
Diluted earnings per share
Dilutive effect of warrants (in shares)									6,120	11,026	10,665
Dilutive effect of equity compensation (in shares)									24,554	16,847	15,026
Weighted-average common and incremental shares (in shares)									7,149,302	5,239,082	4,554,219
Diluted earnings per common share (in dollars per share)	$ 0.41	$ 0.71	$ 0.61	$ 0.43	$ 0.64	$ 0.55	$ 0.57	$ 0.53	$ 2.13	$ 2.30	$ 1.96

Basis of Presentation and Sum48

Basis of Presentation and Summary of Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2006
Significant Accounting Policies [Line Items]
Date of incorporation	Sep. 15, 2005
Ownership (as a percent)		100.00%
Equipment | Minimum
Significant Accounting Policies [Line Items]
Estimated useful lives (in years)	3 years
Equipment | Maximum
Significant Accounting Policies [Line Items]
Estimated useful lives (in years)	5 years
Land Improvements
Significant Accounting Policies [Line Items]
Estimated useful lives (in years)	10 years
Buildings
Significant Accounting Policies [Line Items]
Estimated useful lives (in years)	39 years

Cash and Cash Equivalents (Deta

Cash and Cash Equivalents (Details Textual) $ in Millions	Dec. 31, 2017USD ($)
Cash and Cash Equivalents [Line Items]
Cash in excess of limits of FDIC insurance coverage	$ 1.6
Cash on deposit	1
Federal Home Loan Bank of Indianapolis
Cash and Cash Equivalents [Line Items]
Cash held	0.4
Federal Home Loan Bank of Chicago
Cash and Cash Equivalents [Line Items]
Cash held	$ 41.8

Securities (Details)

Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Available-for-sale Securities [Abstract]
Amortized Cost	$ 481,357	$ 471,070
Gross Unrealized Gains	1,024	317
Gross Unrealized Losses	(9,106)	(14,687)
Fair Value	473,275	456,700
Held-to-maturity Securities [Abstract]
Amortized Cost	19,209	16,671
Gross Unrealized Gains	231	24
Gross Unrealized Losses	(357)	(498)
Fair Value	19,083	16,197
U.S. Government-sponsored agencies
Available-for-sale Securities [Abstract]
Amortized Cost	133,424	92,599
Gross Unrealized Gains	531	167
Gross Unrealized Losses	(765)	(870)
Fair Value	133,190	91,896
Municipal securities
Available-for-sale Securities [Abstract]
Amortized Cost	97,370	97,647
Gross Unrealized Gains	366	85
Gross Unrealized Losses	(1,359)	(5,846)
Fair Value	96,377	91,886
Held-to-maturity Securities [Abstract]
Amortized Cost	10,164	10,171
Gross Unrealized Gains	40	0
Gross Unrealized Losses	(357)	(498)
Fair Value	9,847	9,673
Mortgage-backed securities
Available-for-sale Securities [Abstract]
Amortized Cost	215,452	238,354
Gross Unrealized Gains	15	0
Gross Unrealized Losses	(5,747)	(6,713)
Fair Value	209,720	231,641
Asset-backed securities
Available-for-sale Securities [Abstract]
Amortized Cost	5,000	19,470
Gross Unrealized Gains	9	65
Gross Unrealized Losses	0	(1)
Fair Value	5,009	19,534
Corporate securities
Available-for-sale Securities [Abstract]
Amortized Cost	27,111	20,000
Gross Unrealized Gains	103	0
Gross Unrealized Losses	(1,167)	(1,189)
Fair Value	26,047	18,811
Held-to-maturity Securities [Abstract]
Amortized Cost	9,045	6,500
Gross Unrealized Gains	191	24
Gross Unrealized Losses	0	0
Fair Value	9,236	6,524
Other securities
Available-for-sale Securities [Abstract]
Amortized Cost	3,000	3,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(68)	(68)
Fair Value	$ 2,932	$ 2,932

Securities - Carrying Value of

Securities - Carrying Value of Securities by Contractual Maturity Date (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Amortized Cost
Within one year	$ 0
One to five years	826
Five to ten years	35,981
Five to ten years	221,098
Amortized Cost	257,905
Totals	481,357	$ 471,070
Held-to-maturity Securities, Debt Maturities, Rolling Year Six Through Ten, Amortized Cost	12,442
Held-to-maturity Securities, Debt Maturities, Rolling after Ten Years, Amortized Cost	6,767
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis	19,209
Fair Value
Within one year	0
One to five years	791
Five to ten years	35,214
After ten years	219,609
Fair Value	255,614
Totals	473,275	456,700
Held-to-maturity Securities, Debt Maturities, Rolling Year Six Through Ten, Fair Value	12,487
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value	6,596
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value	19,083
Mortgage-backed securities
Amortized Cost
Totals	215,452	238,354
Fair Value
Totals	209,720	231,641
Asset-backed securities
Amortized Cost
Totals	5,000	19,470
Fair Value
Totals	5,009	19,534
Other securities
Amortized Cost
Totals	3,000	3,000
Fair Value
Totals	$ 2,932	$ 2,932

Securities - Gross Unrealized L

Securities - Gross Unrealized Losses and Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fair Value
Less Than 12 Months	$ 67,226	$ 389,622
12 Months or Longer	279,131	23,591
Total	346,357	413,213
Held-to-maturity, Less Than 12 Months	8,255	9,673
Held-to-maturity, 12 Months or Longer	0	0
Held-to-maturity, Total	8,255	9,673
Unrealized Losses
Less Than 12 Months	(732)	(13,467)
12 Months or Longer	(8,374)	(1,220)
Total	(9,106)	(14,687)
Held-to-maturity, Less Than 12 Months	(357)	(498)
Held-to-maturity, 12 Months or Longer	0	0
Held-to-maturity, Total	(357)	(498)
U.S. Government-sponsored agencies
Fair Value
Less Than 12 Months	30,194	68,625
12 Months or Longer	22,824	260
Total	53,018	68,885
Unrealized Losses
Less Than 12 Months	(256)	(840)
12 Months or Longer	(509)	(30)
Total	(765)	(870)
Municipals
Fair Value
Less Than 12 Months	5,638	86,424
12 Months or Longer	57,128	0
Total	62,766	86,424
Held-to-maturity, Less Than 12 Months	8,255	9,673
Held-to-maturity, 12 Months or Longer	0	0
Held-to-maturity, Total	8,255	9,673
Unrealized Losses
Less Than 12 Months	(77)	(5,846)
12 Months or Longer	(1,282)	0
Total	(1,359)	(5,846)
Held-to-maturity, Less Than 12 Months	(357)	(498)
Held-to-maturity, 12 Months or Longer	0	0
Held-to-maturity, Total	(357)	(498)
Mortgage-backed securities
Fair Value
Less Than 12 Months	29,542	231,641
12 Months or Longer	177,266	0
Total	206,808	231,641
Unrealized Losses
Less Than 12 Months	(251)	(6,713)
12 Months or Longer	(5,496)	0
Total	(5,747)	(6,713)
Asset-backed securities
Fair Value
Less Than 12 Months		0
12 Months or Longer		4,520
Total		4,520
Unrealized Losses
Less Than 12 Months		0
12 Months or Longer		(1)
Total		(1)
Corporate securities
Fair Value
Less Than 12 Months	1,852	0
12 Months or Longer	18,981	18,811
Total	20,833	18,811
Unrealized Losses
Less Than 12 Months	(148)	0
12 Months or Longer	(1,019)	(1,189)
Total	(1,167)	(1,189)
Other securities
Fair Value
Less Than 12 Months	0	2,932
12 Months or Longer	2,932	0
Total	2,932	2,932
Unrealized Losses
Less Than 12 Months	0	(68)
12 Months or Longer	(68)	0
Total	$ (68)	$ (68)

Securities - Amounts Reclassifi

Securities - Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Gain (loss) realized in earnings	$ (8)	$ 177	$ 0
Total reclassified amount before tax	(8)	177	0
Tax expense (benefit)	(3)	63	0
Total reclassifications out of accumulated other comprehensive loss	$ (5)	$ 114	$ 0

Securities (Details Textual)

Securities (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Gross gains	$ 0	$ 0.2	$ 0
Gross losses	0	0	$ 0
Securities pledged as collateral	460.1
Total fair value	$ 354.6	$ 422.9
Percentage of available-for-sale portfolio	72.00%	89.00%

Loans (Details)

Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans	$ 2,086,429	$ 1,247,184
Net deferred loan origination costs and premiums and discounts on purchased loans	4,764	3,605
Total loans	2,091,193	1,250,789
Allowance for loan losses	(14,970)	(10,981)	$ (8,351)	$ (5,800)
Net loans	2,076,223	1,239,808
Commercial and industrial
Financial Instruments Owned and Pledged as Collateral [Line Items]
Allowance for loan losses	(1,738)	(1,352)	(1,367)	(920)
Owner-occupied commercial real estate
Financial Instruments Owned and Pledged as Collateral [Line Items]
Allowance for loan losses	(803)	(582)	(476)	(345)
Investor commercial real estate
Financial Instruments Owned and Pledged as Collateral [Line Items]
Allowance for loan losses	(85)	(168)	(212)	(261)
Construction
Financial Instruments Owned and Pledged as Collateral [Line Items]
Allowance for loan losses	(423)	(544)	(500)	(330)
Single tenant lease financing
Financial Instruments Owned and Pledged as Collateral [Line Items]
Allowance for loan losses	(7,872)	(6,248)	(3,931)	(2,061)
Public finance
Financial Instruments Owned and Pledged as Collateral [Line Items]
Allowance for loan losses	(959)	0
Healthcare finance
Financial Instruments Owned and Pledged as Collateral [Line Items]
Allowance for loan losses	(313)	0
Residential mortgage
Financial Instruments Owned and Pledged as Collateral [Line Items]
Allowance for loan losses	(956)	(754)	(896)	(985)
Home equity
Financial Instruments Owned and Pledged as Collateral [Line Items]
Allowance for loan losses	(70)	(102)	(125)	(207)
Other consumer
Financial Instruments Owned and Pledged as Collateral [Line Items]
Allowance for loan losses	(1,751)	(1,231)	$ (844)	$ (691)
Commercial loans
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans	1,528,407	833,145
Commercial loans | Commercial and industrial
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans	122,940	102,437
Commercial loans | Owner-occupied commercial real estate
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans	75,768	57,668
Commercial loans | Investor commercial real estate
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans	7,273	13,181
Commercial loans | Construction
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans	49,213	53,291
Commercial loans | Single tenant lease financing
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans	803,299	606,568
Commercial loans | Public finance
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans	438,341	0
Commercial loans | Healthcare finance
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans	31,573	0
Consumer loans
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans	558,022	414,039
Consumer loans | Residential mortgage
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans	299,935	205,554
Consumer loans | Home equity
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans	30,554	35,036
Consumer loans | Other consumer
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans	$ 227,533	$ 173,449

Loans - Allowance for Loan Los

Loans - Allowance for Loan Losses and the Recorded Investment in Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016
Balance, beginning of year
Balance, beginning of year	$ 10,981	$ 8,351	$ 5,800
Provision charged to expense	4,872	4,330	1,946
Losses charged off	(1,282)	(2,189)	(636)
Recoveries	399	489	1,241
Balance, end of year	14,970	10,981	8,351
Loans:
Ending balance: collectively evaluated for impairment				$ 2,081,224	$ 1,245,344
Ending balance: individually evaluated for impairment				5,205	1,840
Ending balance				2,086,429	1,247,184
Ending balance: collectively evaluated for impairment				14,970	10,981
Ending balance: individually evaluated for impairment				0	0
Ending balance	10,981	8,351	5,800	14,970	10,981
Commercial and industrial
Balance, beginning of year
Balance, beginning of year	1,352	1,367	920
Provision charged to expense	588	1,380	447
Losses charged off	(271)	(1,582)	0
Recoveries	69	187	0
Balance, end of year	1,738	1,352	1,367
Loans:
Ending balance: collectively evaluated for impairment				119,054	102,437
Ending balance: individually evaluated for impairment				3,886	0
Ending balance: collectively evaluated for impairment				1,738	1,352
Ending balance: individually evaluated for impairment				0	0
Ending balance	1,352	1,367	920	1,738	1,352
Owner-occupied commercial real estate
Balance, beginning of year
Balance, beginning of year	582	476	345
Provision charged to expense	221	106	131
Losses charged off	0	0	0
Recoveries	0	0	0
Balance, end of year	803	582	476
Loans:
Ending balance: collectively evaluated for impairment				75,761	57,668
Ending balance: individually evaluated for impairment				7	0
Ending balance: collectively evaluated for impairment				803	582
Ending balance: individually evaluated for impairment				0	0
Ending balance	582	476	345	803	582
Investor commercial real estate
Balance, beginning of year
Balance, beginning of year	168	212	261
Provision charged to expense	(83)	(44)	(549)
Losses charged off	0	0	0
Recoveries	0	0	500
Balance, end of year	85	168	212
Loans:
Ending balance: collectively evaluated for impairment				7,273	13,181
Ending balance: individually evaluated for impairment				0	0
Ending balance: collectively evaluated for impairment				85	168
Ending balance: individually evaluated for impairment				0	0
Ending balance	168	212	261	85	168
Construction
Balance, beginning of year
Balance, beginning of year	544	500	330
Provision charged to expense	(121)	44	170
Losses charged off	0	0	0
Recoveries	0	0	0
Balance, end of year	423	544	500
Loans:
Ending balance: collectively evaluated for impairment				49,213	53,291
Ending balance: individually evaluated for impairment				0	0
Ending balance: collectively evaluated for impairment				423	544
Ending balance: individually evaluated for impairment				0	0
Ending balance	544	500	330	423	544
Single tenant lease financing
Balance, beginning of year
Balance, beginning of year	6,248	3,931	2,061
Provision charged to expense	1,624	2,317	1,870
Losses charged off	0	0	0
Recoveries	0	0	0
Balance, end of year	7,872	6,248	3,931
Loans:
Ending balance: collectively evaluated for impairment				803,299	606,568
Ending balance: individually evaluated for impairment				0	0
Ending balance: collectively evaluated for impairment				7,872	6,248
Ending balance: individually evaluated for impairment				0	0
Ending balance	6,248	3,931	2,061	7,872	6,248
Public finance
Balance, beginning of year
Balance, beginning of year	0
Provision charged to expense	959
Losses charged off	0
Recoveries	0
Balance, end of year	959	0
Loans:
Ending balance: collectively evaluated for impairment				438,341
Ending balance: individually evaluated for impairment				0
Ending balance: collectively evaluated for impairment				959
Ending balance: individually evaluated for impairment				0
Ending balance	0	0		959	0
Healthcare finance
Balance, beginning of year
Balance, beginning of year	0
Provision charged to expense	313
Losses charged off	0
Recoveries	0
Balance, end of year	313	0
Loans:
Ending balance: collectively evaluated for impairment				31,573
Ending balance: individually evaluated for impairment				0
Ending balance: collectively evaluated for impairment				313
Ending balance: individually evaluated for impairment				0
Ending balance	0	0		313	0
Residential mortgage
Balance, beginning of year
Balance, beginning of year	754	896	985
Provision charged to expense	314	(38)	(311)
Losses charged off	(116)	(134)	(185)
Recoveries	4	30	407
Balance, end of year	956	754	896
Loans:
Ending balance: collectively evaluated for impairment				298,796	203,842
Ending balance: individually evaluated for impairment				1,139	1,712
Ending balance: collectively evaluated for impairment				956	754
Ending balance: individually evaluated for impairment				0	0
Ending balance	754	896	985	956	754
Home equity
Balance, beginning of year
Balance, beginning of year	102	125	207
Provision charged to expense	(55)	(3)	(83)
Losses charged off	0	(33)	0
Recoveries	23	13	1
Balance, end of year	70	102	125
Loans:
Ending balance: collectively evaluated for impairment				30,471	35,036
Ending balance: individually evaluated for impairment				83	0
Ending balance: collectively evaluated for impairment				70	102
Ending balance: individually evaluated for impairment				0	0
Ending balance	102	125	207	70	102
Other consumer
Balance, beginning of year
Balance, beginning of year	1,231	844	691
Provision charged to expense	1,112	568	271
Losses charged off	(895)	(440)	(451)
Recoveries	303	259	333
Balance, end of year	1,751	1,231	844
Loans:
Ending balance: collectively evaluated for impairment				227,443	173,321
Ending balance: individually evaluated for impairment				90	128
Ending balance: collectively evaluated for impairment				1,751	1,231
Ending balance: individually evaluated for impairment				0	0
Ending balance	$ 1,231	$ 844	$ 691	1,751	1,231
Commercial loans
Loans:
Ending balance				1,528,407	833,145
Commercial loans | Commercial and industrial
Loans:
Ending balance				122,940	102,437
Commercial loans | Owner-occupied commercial real estate
Loans:
Ending balance				75,768	57,668
Commercial loans | Investor commercial real estate
Loans:
Ending balance				7,273	13,181
Commercial loans | Construction
Loans:
Ending balance				49,213	53,291
Commercial loans | Single tenant lease financing
Loans:
Ending balance				803,299	606,568
Commercial loans | Public finance
Loans:
Ending balance				438,341	0
Commercial loans | Healthcare finance
Loans:
Ending balance				31,573	0
Consumer loans
Loans:
Ending balance				558,022	414,039
Consumer loans | Residential mortgage
Loans:
Ending balance				299,935	205,554
Consumer loans | Home equity
Loans:
Ending balance				30,554	35,036
Consumer loans | Other consumer
Loans:
Ending balance				$ 227,533	$ 173,449

Loans - Credit Risk Profile (De

Loans - Credit Risk Profile (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Total	$ 2,086,429	$ 1,247,184
Nonaccrual
Financing Receivable, Recorded Investment [Line Items]
Total	839	1,083
Commercial loans
Financing Receivable, Recorded Investment [Line Items]
Total	1,528,407	833,145
Commercial loans | Pass
Financing Receivable, Recorded Investment [Line Items]
Total	1,509,542	828,519
Commercial loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total	14,961	4,124
Commercial loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total	3,904	502
Commercial loans | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Total	122,940	102,437
Commercial loans | Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Total	113,840	99,200
Commercial loans | Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total	5,203	2,746
Commercial loans | Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total	3,897	491
Commercial loans | Commercial and industrial | Nonaccrual
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
Commercial loans | Owner-occupied commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total	75,768	57,668
Commercial loans | Owner-occupied commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Total	72,995	57,657
Commercial loans | Owner-occupied commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total	2,766	0
Commercial loans | Owner-occupied commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total	7	11
Commercial loans | Owner-occupied commercial real estate | Nonaccrual
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
Commercial loans | Investor commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total	7,273	13,181
Commercial loans | Investor commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Total	7,273	13,181
Commercial loans | Investor commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
Commercial loans | Investor commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
Commercial loans | Investor commercial real estate | Nonaccrual
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
Commercial loans | Construction
Financing Receivable, Recorded Investment [Line Items]
Total	49,213	53,291
Commercial loans | Construction | Pass
Financing Receivable, Recorded Investment [Line Items]
Total	49,213	53,291
Commercial loans | Construction | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
Commercial loans | Construction | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
Commercial loans | Construction | Nonaccrual
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
Commercial loans | Single tenant lease financing
Financing Receivable, Recorded Investment [Line Items]
Total	803,299	606,568
Commercial loans | Single tenant lease financing | Pass
Financing Receivable, Recorded Investment [Line Items]
Total	796,307	605,190
Commercial loans | Single tenant lease financing | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total	6,992	1,378
Commercial loans | Single tenant lease financing | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
Commercial loans | Single tenant lease financing | Nonaccrual
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
Commercial loans | Public finance
Financing Receivable, Recorded Investment [Line Items]
Total	438,341	0
Commercial loans | Public finance | Pass
Financing Receivable, Recorded Investment [Line Items]
Total	438,341
Commercial loans | Public finance | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total	0
Commercial loans | Public finance | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total	0
Commercial loans | Public finance | Nonaccrual
Financing Receivable, Recorded Investment [Line Items]
Total	0
Commercial loans | Healthcare finance
Financing Receivable, Recorded Investment [Line Items]
Total	31,573	0
Commercial loans | Healthcare finance | Pass
Financing Receivable, Recorded Investment [Line Items]
Total	31,573
Commercial loans | Healthcare finance | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total	0
Commercial loans | Healthcare finance | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total	0
Commercial loans | Healthcare finance | Nonaccrual
Financing Receivable, Recorded Investment [Line Items]
Total	0
Consumer loans
Financing Receivable, Recorded Investment [Line Items]
Total	558,022	414,039
Consumer loans | Performing
Financing Receivable, Recorded Investment [Line Items]
Total	557,183	412,956
Consumer loans | Nonaccrual
Financing Receivable, Recorded Investment [Line Items]
Total	839	1,083
Consumer loans | Residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Total	299,935	205,554
Consumer loans | Residential mortgage | Performing
Financing Receivable, Recorded Investment [Line Items]
Total	299,211	204,530
Consumer loans | Residential mortgage | Nonaccrual
Financing Receivable, Recorded Investment [Line Items]
Total	724	1,024
Consumer loans | Home equity
Financing Receivable, Recorded Investment [Line Items]
Total	30,554	35,036
Consumer loans | Home equity | Performing
Financing Receivable, Recorded Investment [Line Items]
Total	30,471	35,036
Consumer loans | Home equity | Nonaccrual
Financing Receivable, Recorded Investment [Line Items]
Total	83	0
Consumer loans | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Total	227,533	173,449
Consumer loans | Other consumer | Performing
Financing Receivable, Recorded Investment [Line Items]
Total	227,501	173,390
Consumer loans | Other consumer | Nonaccrual
Financing Receivable, Recorded Investment [Line Items]
Total	$ 32	$ 59

Loans - Loan Portfolio Aging An

Loans - Loan Portfolio Aging Analysis (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 1,091	$ 1,654
Current	2,085,338	1,245,530
Total loans	2,086,429	1,247,184
Total Loans 90 Days or More Past Due and Accruing	0	0
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans 90 Days or More Past Due and Accruing	0	0
Owner-occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans 90 Days or More Past Due and Accruing	0	0
Investor commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans 90 Days or More Past Due and Accruing	0	0
Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans 90 Days or More Past Due and Accruing	0	0
Single tenant lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans 90 Days or More Past Due and Accruing	0	0
Public finance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans 90 Days or More Past Due and Accruing	0
Healthcare finance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans 90 Days or More Past Due and Accruing	0
Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans 90 Days or More Past Due and Accruing	0	0
Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans 90 Days or More Past Due and Accruing	0	0
Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans 90 Days or More Past Due and Accruing	0	0
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	299	200
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	143	438
90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	649	1,016
Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	839	1,083
Commercial loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	1,528,407	833,145
Commercial loans | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	10	27
Current	122,930	102,410
Total loans	122,940	102,437
Commercial loans | Owner-occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	75,768	57,668
Total loans	75,768	57,668
Commercial loans | Investor commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	7,273	13,181
Total loans	7,273	13,181
Commercial loans | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	49,213	53,291
Total loans	49,213	53,291
Commercial loans | Single tenant lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	803,299	606,568
Total loans	803,299	606,568
Commercial loans | Public finance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Current	438,341
Total loans	438,341	0
Commercial loans | Healthcare finance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Current	31,573
Total loans	31,573	0
Commercial loans | 30-59 Days Past Due | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	27
Commercial loans | 30-59 Days Past Due | Owner-occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial loans | 30-59 Days Past Due | Investor commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial loans | 30-59 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial loans | 30-59 Days Past Due | Single tenant lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial loans | 30-59 Days Past Due | Public finance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Commercial loans | 30-59 Days Past Due | Healthcare finance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Commercial loans | 60-89 Days Past Due | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	10	0
Commercial loans | 60-89 Days Past Due | Owner-occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial loans | 60-89 Days Past Due | Investor commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial loans | 60-89 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial loans | 60-89 Days Past Due | Single tenant lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial loans | 60-89 Days Past Due | Public finance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Commercial loans | 60-89 Days Past Due | Healthcare finance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Commercial loans | 90 Days or More Past Due | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial loans | 90 Days or More Past Due | Owner-occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial loans | 90 Days or More Past Due | Investor commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial loans | 90 Days or More Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial loans | 90 Days or More Past Due | Single tenant lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial loans | 90 Days or More Past Due | Public finance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Commercial loans | 90 Days or More Past Due | Healthcare finance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Commercial loans | Nonaccrual | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	0	0
Commercial loans | Nonaccrual | Owner-occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	0	0
Commercial loans | Nonaccrual | Investor commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	0	0
Commercial loans | Nonaccrual | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	0	0
Commercial loans | Nonaccrual | Single tenant lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	0	0
Commercial loans | Nonaccrual | Public finance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	0
Commercial loans | Nonaccrual | Healthcare finance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	0
Consumer loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	558,022	414,039
Consumer loans | Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	583	1,338
Current	299,352	204,216
Total loans	299,935	205,554
Consumer loans | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	83	0
Current	30,471	35,036
Total loans	30,554	35,036
Consumer loans | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	415	289
Current	227,118	173,160
Total loans	227,533	173,449
Consumer loans | 30-59 Days Past Due | Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Consumer loans | 30-59 Days Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Consumer loans | 30-59 Days Past Due | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	299	173
Consumer loans | 60-89 Days Past Due | Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	23	347
Consumer loans | 60-89 Days Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Consumer loans | 60-89 Days Past Due | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	110	91
Consumer loans | 90 Days or More Past Due | Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	560	991
Consumer loans | 90 Days or More Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	83	0
Consumer loans | 90 Days or More Past Due | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6	25
Consumer loans | Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	839	1,083
Consumer loans | Nonaccrual | Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	724	1,024
Consumer loans | Nonaccrual | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	83	0
Consumer loans | Nonaccrual | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	$ 32	$ 59

Loans - Impaired Loans (Details

Loans - Impaired Loans (Details) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2017contract	Sep. 30, 2017contract	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Loans without a specific valuation allowance
Average Balance			$ 4,601	$ 1,744	$ 1,326
Interest Income			156	13	26
Loans with a specific valuation allowance
Average Balance			35	1,084	28
Interest Income			0	0	1
Total impaired loans
Recorded Balance			5,205	1,840
Unpaid Principal Balance			5,263	2,008
Specific Allowance			0	0
Average Balance			4,636	2,828	1,354
Interest Income			156	13	27
Other real estate owned			5,041	4,533
Mortgage loans in process of foreclosure, amount			200	1,000
Commercial and industrial
Loans without a specific valuation allowance
Recorded Balance			3,886	0
Unpaid Principal Balance			3,886	0
Specific Allowance			0	0
Average Balance			2,942	0	0
Interest Income			146	0	0
Loans with a specific valuation allowance
Average Balance			35	1,084	0
Interest Income			0	0	0
Total impaired loans
Modifications, number of contracts | contract	0	2
Modifications, recorded Investment			1,800
Owner-occupied commercial real estate
Loans without a specific valuation allowance
Recorded Balance			7	0
Unpaid Principal Balance			7	0
Specific Allowance			0	0
Average Balance			3	0	0
Interest Income			0	0	0
Residential mortgage
Loans without a specific valuation allowance
Recorded Balance			1,139	1,712
Unpaid Principal Balance			1,144	1,824
Specific Allowance			0	0
Average Balance			1,546	1,595	1,112
Interest Income			6	8	8
Loans with a specific valuation allowance
Average Balance			0	0	15
Interest Income			0	0	0
Total impaired loans
Other real estate owned			600	100
Home equity
Loans without a specific valuation allowance
Recorded Balance			83	0
Unpaid Principal Balance			83	0
Specific Allowance			0	0
Average Balance			5	0	0
Interest Income			0	0	0
Investor commercial real estate
Loans without a specific valuation allowance
Average Balance			0	0	21
Interest Income			0	0	2
Other consumer
Loans without a specific valuation allowance
Recorded Balance			90	128
Unpaid Principal Balance			143	184
Specific Allowance			0	0
Average Balance			105	149	193
Interest Income			4	5	16
Loans with a specific valuation allowance
Average Balance			0	0	13
Interest Income			$ 0	$ 0	$ 1

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Less: accumulated depreciation	$ (6,479)	$ (4,976)
Premises and equipment, Net	10,058	10,044
Land
Property, Plant and Equipment [Line Items]
Premises and equipment	2,500	2,500
Building and improvements
Property, Plant and Equipment [Line Items]
Premises and equipment	6,427	5,441
Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment	$ 7,610	$ 7,079

Goodwill (Details)

Goodwill (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 4,687	$ 4,687

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Banking and Thrift [Abstract]
Noninterest-bearing demand deposit accounts	$ 44,686	$ 31,166
Interest-bearing demand deposit accounts	94,674	93,074
Regular savings accounts	49,939	27,955
Money market accounts	499,501	340,240
Certificates of deposits	1,319,488	964,819
Brokered deposits	76,653	5,613
Total deposits	2,084,941	1,462,867
Certificates of deposit (in the amount of $250 or more)	$ 453,034	$ 295,578

Deposits - Scheduled Maturities

Deposits - Scheduled Maturities (Details) $ in Thousands	Dec. 31, 2017USD ($)
Banking and Thrift [Abstract]
2,018	$ 680,686
2,019	179,513
2,020	126,603
2,021	315,318
2,022	80,753
Thereafter	13,268
Time Deposits, Total	$ 1,396,141

Deposits (Details Textual)

Deposits (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Banking and Thrift [Abstract]
Certificates of deposit (in the amount of $250 or more)	$ 453,034	$ 295,578

FHLB Advances (Details)

FHLB Advances (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Banking and Thrift [Abstract]
2,018	$ 55,000
2,019	30,000
2,020	0
2,021	0
2,022	110,000
Thereafter	215,000
Summary total	410,000
Net deferred prepayment gain on advance restructure	176
Total	$ 410,176	$ 190,000

FHLB Advances (Details Textual)

FHLB Advances (Details Textual) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
FHLB Advances	$ 410,176,000	$ 190,000,000
Investment securities pledged	453,900,000	340,600,000
Maximum borrowing capacity	$ 507,900,000
Minimum
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Interest rate (as a percent)	0.41586%
Maximum
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Interest rate (as a percent)	4.22%
Weighted Average
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Interest rate (as a percent)	1.50%
Symmetrical Fixed Rate Bullet Advance
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Par value		40,000,000
Federal Home Loan Bank, Advances, Putable Option
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Variable rate advances		50,000,000
Par value		15,000,000
Residential mortgage
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Loans pledged	$ 226,300,000	166,400,000
Commercial and industrial
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Loans pledged	$ 808,900,000	$ 0

Subordinated Debt (Details Text

Subordinated Debt (Details Textual) - Subordinated Debt - USD ($)	Jun. 28, 2013	Sep. 30, 2017	May 04, 2017	Oct. 20, 2015
8% Debenture Due 2021
Debt Instrument [Line Items]
Principal amount	$ 3,000,000
Annual rate (as a percent)	8.00%
Warrants (in shares)	48,750
Exercise price (in shares)	$ 19.33
Common stock, shares issued (in shares)			15,915
Number of securities withheld for cashless exercise feature			32,835
6.4375% Notes Due 2025
Debt Instrument [Line Items]
Principal amount				$ 10,000,000
Annual rate (as a percent)				6.4375%
6% Notes Due 2021
Debt Instrument [Line Items]
Principal amount		$ 25,000,000
Annual rate (as a percent)		6.00%
LIBOR | 6% Notes Due 2021
Debt Instrument [Line Items]
Basis spread on variable rate		485.00%

Subordinated Debt - Schedule Of

Subordinated Debt - Schedule Of Subordinated Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Long-term debt	$ 410,176	$ 189,981
Unamortized discounts and debt issuance costs	(1,274)	(1,422)
Subordinated Debt
Debt Instrument [Line Items]
Long-term debt	38,000	38,000
Unamortized discounts and debt issuance costs	(1,274)	(1,422)
Subordinated Debt | 8% Debenture Due 2021
Debt Instrument [Line Items]
Long-term debt	3,000	3,000
Unamortized discounts and debt issuance costs	0	0
Subordinated Debt | 6.4375% Notes Due 2025
Debt Instrument [Line Items]
Long-term debt	10,000	10,000
Unamortized discounts and debt issuance costs	(186)	(210)
Subordinated Debt | 6% Notes Due 2021
Debt Instrument [Line Items]
Long-term debt	25,000	25,000
Unamortized discounts and debt issuance costs	$ (1,088)	$ (1,212)

Benefit Plans - Restricted Stoc

Benefit Plans - Restricted Stock (Details)	12 Months Ended
	Dec. 31, 2017$ / sharesshares
Restricted Stock Units
Restricted Stock Awards (in shares)
Nonvested at beginning of period | shares	49,781
Granted | shares	42,819
Vested | shares	(19,835)
Forfeited | shares	0
Nonvested at end of period | shares	72,765
Weighted-Average Grant Date Fair Value Per Share (in dollars per share)
Weighted-Average Grant Date Fair Value Per Share Nonvested, Beginning Balance (in dollars per share) | $ / shares	$ 23.07
Weighted-Average Grant Date Fair Value Per Share Granted (in dollars per share) | $ / shares	30.99
Weighted-Average Grant Date Fair Value Per Share Vested (in dollars per share) | $ / shares	22.43
Weighted-Average Grant Date Fair Value Per Share Forfeited (in dollars per share) | $ / shares	0
Weighted-Average Grant Date Fair Value Per Share Nonvested, Ending Balance (in dollars per share) | $ / shares	$ 27.91
Restricted Stock Awards
Restricted Stock Awards (in shares)
Nonvested at beginning of period | shares	16,330
Granted | shares	5,628
Vested | shares	(18,625)
Forfeited | shares	0
Nonvested at end of period | shares	3,333
Weighted-Average Grant Date Fair Value Per Share (in dollars per share)
Weighted-Average Grant Date Fair Value Per Share Nonvested, Beginning Balance (in dollars per share) | $ / shares	$ 19.06
Weighted-Average Grant Date Fair Value Per Share Granted (in dollars per share) | $ / shares	31
Weighted-Average Grant Date Fair Value Per Share Vested (in dollars per share) | $ / shares	21.71
Weighted-Average Grant Date Fair Value Per Share Forfeited (in dollars per share) | $ / shares	0
Weighted-Average Grant Date Fair Value Per Share Nonvested, Ending Balance (in dollars per share) | $ / shares	$ 24.44
Deferred Stock Units
Restricted Stock Awards (in shares)
Nonvested at beginning of period | shares	0
Granted | shares	7
Vested | shares	(7)
Forfeited | shares	0
Nonvested at end of period | shares	0
Weighted-Average Grant Date Fair Value Per Share (in dollars per share)
Weighted-Average Grant Date Fair Value Per Share Nonvested, Beginning Balance (in dollars per share) | $ / shares	$ 0
Weighted-Average Grant Date Fair Value Per Share Granted (in dollars per share) | $ / shares	30.46
Weighted-Average Grant Date Fair Value Per Share Vested (in dollars per share) | $ / shares	30.46
Weighted-Average Grant Date Fair Value Per Share Forfeited (in dollars per share) | $ / shares	0
Weighted-Average Grant Date Fair Value Per Share Nonvested, Ending Balance (in dollars per share) | $ / shares	$ 0

Benefit Plans - Deferred Stock

Benefit Plans - Deferred Stock Rights (Details)	12 Months Ended
	Dec. 31, 2017shares
Deferred Rights (in shares)
Outstanding, beginning of year	82,377
Granted	618
Exercised	0
Outstanding, end of year	82,995

Benefit Plans (Details Textual)

Benefit Plans (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contributions	$ 0.5	$ 0.4	$ 0.3
Vesting (as a percent)	50.00%
Unrecognized compensation cost	$ 1.4
Weighted average expense recognition period (in years)	1 year 10 months 24 days
Employer matching contribution description	The Company has a 401(k) plan established for substantially all full-time employees, as defined. Employee contributions are limited to the maximum established by the Internal Revenue Service on an annual basis. The Company has elected to match contributions equal to 100% of the first 1% of employee deferrals and then 50% on deferrals over 1% up to a maximum of 6% of an individuals total eligible salary, as defined by the plan.
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee deferral (as a percent)	1.00%
Vesting period (in years)	1 year
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee deferral (as a percent)	6.00%
Vesting period (in years)	2 years
Equity Incentive Plan 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	750,000
Share-based compensation expense	$ 1	$ 0.7	$ 0.8
Directors Deferred Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contributions (as a percent)	100.00%
Employee deferral (as a percent)	1.00%
Number of shares available for future issuance	180,000

Income Taxes - Provisions (Cred

Income Taxes - Provisions (Credit) for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Current									$ 10,998	$ 2,367	$ 4,293
Deferred									(5,142)	3,544	443
Net deferred tax asset revaluation									1,846	0	0
Total	$ 3,521	$ 1,694	$ 1,464	$ 1,023	$ 1,671	$ 1,521	$ 1,421	$ 1,298	$ 7,702	$ 5,911	$ 4,736

Income Taxes - Income Tax Recon

Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Statutory rate times pre-tax income									$ 8,025	$ 6,115	$ 4,646
Add (subtract) the tax effect of:
Income from tax-exempt securities and loans									(2,512)	(635)	(132)
State income tax, net of federal tax effect									693	567	154
Bank-owned life insurance									(318)	(159)	(137)
Net deferred tax asset revaluation									1,846	0	0
Other differences									(32)	23	205
Total	$ 3,521	$ 1,694	$ 1,464	$ 1,023	$ 1,671	$ 1,521	$ 1,421	$ 1,298	$ 7,702	$ 5,911	$ 4,736

Income Taxes - Net Deferred Tax

Income Taxes - Net Deferred Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets (liabilities)
Allowance for loan losses	$ 3,873	$ 4,269
Unrealized loss on available-for-sale securities	1,939	5,112
Fair value adjustments	(2,213)	(5,994)
Depreciation	(263)	(525)
Deferred compensation and accrued payroll	1,051	1,234
Loan origination costs	(783)	(955)
Prepaid assets	(288)	(276)
Other	69	397
Total deferred tax assets, net	$ 3,385	$ 3,262

Income Taxes (Details Textual)

Income Taxes (Details Textual)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Statutory rate (as a percent)	35.00%	34.00%	34.00%

Related Party Transactions (Det

Related Party Transactions (Details Textual) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Related Party Transactions [Abstract]
Deposits	$ 22.8	$ 21.9

Regulatory Capital Requiremen77

Regulatory Capital Requirements - Required Ratios (Details)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2019	Dec. 31, 2016	Jan. 01, 2016
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Minimum ratio of Common Equity Tier 1 capital to risk-weighed assets, capital conservation buffer				0.625%
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)	5.75%		5.13%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)	7.25%		6.63%
Capital Required for Capital Adequacy to Risk Weighted Assets	9.25%		8.63%
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent)	4.00%		4.00%
Phase-in period	4 years
Scenario, Forecast
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Minimum ratio of Common Equity Tier 1 capital to risk-weighed assets		4.50%
Minimum ratio of Common Equity Tier 1 capital to risk-weighed assets, capital conservation buffer		2.50%
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)		7.00%
Minimum ratio of Tier 1 capital to risk-weighted assets		6.00%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)		8.50%
Minimum ratio of Total capital to risk-weighted assets		8.00%
Capital Required for Capital Adequacy to Risk Weighted Assets		10.50%
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent)		4.00%

Regulatory Capital Requiremen78

Regulatory Capital Requirements (Details) - USD ($) $ in Thousands	Jan. 01, 2019	Dec. 31, 2017	Dec. 31, 2016
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 common equity, (to risk-weighted assets), Actual Amount		$ 224,407	$ 158,479
Tier 1 common equity, (to risk-weighted assets), Actual Ratio (as a percent)		11.43%	11.54%
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Actual Amount		$ 112,866	$ 70,366
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)		5.75%	5.13%
Capital		$ 276,103	$ 206,038
Capital to Risk Weighted Assets		14.07%	15.01%
Capital Required for Capital Adequacy		$ 181,566	$ 118,421
Capital Required for Capital Adequacy to Risk Weighted Assets		9.25%	8.63%
Tier 1 capital (to risk-weighted assets), Actual Amount		$ 224,407	$ 158,479
Tier 1 capital (to risk-weighted assets), Actual Ratio (as a percent)		11.43%	11.54%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Amount		$ 142,309	$ 90,961
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)		7.25%	6.63%
Tier 1 capital (to average assets), Actual Amount		$ 224,407	$ 158,479
Tier 1 capital (to average assets), Actual Ratio (as a percent)		8.45%	8.65%
Tier 1 capital (to average assets), Minimum Capital Requirement, Amount		$ 106,196	$ 73,311
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent)		4.00%	4.00%
Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 common equity, (to risk-weighted assets), Actual Amount		$ 223,288	$ 162,617
Tier 1 common equity, (to risk-weighted assets), Actual Ratio (as a percent)		11.40%	11.88%
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Actual Amount		$ 112,672	$ 70,145
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)		5.75%	5.13%
Tier One Common Equity Required to be Well Capitalized		$ 127,368	$ 88,964
Tier One Common Equity Required to be Well Capitalized to Risk Weighted Assets		6.50%	6.50%
Capital		$ 238,258	$ 173,598
Capital to Risk Weighted Assets		12.16%	12.68%
Capital Required for Capital Adequacy		$ 181,255	$ 118,048
Capital Required for Capital Adequacy to Risk Weighted Assets		9.25%	8.63%
Capital Required to be Well Capitalized		$ 195,951	$ 136,868
Capital Required to be Well Capitalized to Risk Weighted Assets		10.00%	10.00%
Tier 1 capital (to risk-weighted assets), Actual Amount		$ 223,288	$ 162,617
Tier 1 capital (to risk-weighted assets), Actual Ratio (as a percent)		11.40%	11.88%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Amount		$ 142,064	$ 90,675
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)		7.25%	6.63%
Tier 1 capital (to risk-weighted assets), Minimum to be Wel Capitalized Under Prompt Corrective Actions, Amount		$ 156,761	$ 109,494
Tier 1 capital (to risk-weighted assets), Minimum to be Wel Capitalized Under Prompt Corrective Actions, Ratio (as a percent)		8.00%	8.00%
Tier 1 capital (to average assets), Actual Amount		$ 223,288	$ 162,617
Tier 1 capital (to average assets), Actual Ratio (as a percent)		8.42%	8.89%
Tier 1 capital (to average assets), Minimum Capital Requirement, Amount		$ 106,059	$ 73,186
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent)		4.00%	4.00%
Tier 1 capital (to average assets), Minimum to be Well Capitalized Under Prompt Corrective Actions, Amount		$ 132,574	$ 91,483
Tier 1 capital (to average assets), Minimum to be Well Capitalized Under Prompt Corrective Actions, Ratio (as a percent)		5.00%	5.00%
Scenario, Forecast
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)	7.00%
Capital Required for Capital Adequacy to Risk Weighted Assets	10.50%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)	8.50%
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent)	4.00%
2016 Period | Scenario, Forecast
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Actual Amount	$ 137,402
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)	7.00%
Capital Required for Capital Adequacy	$ 206,102
Capital Required for Capital Adequacy to Risk Weighted Assets	10.50%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Amount	$ 166,845
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)	8.50%
Tier 1 capital (to average assets), Minimum Capital Requirement, Amount	$ 106,196
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent)	4.00%
2016 Period | Scenario, Forecast | Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Actual Amount	$ 137,166
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)	7.00%
Capital Required for Capital Adequacy	$ 205,748
Capital Required for Capital Adequacy to Risk Weighted Assets	10.50%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Amount	$ 166,558
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)	8.50%
Tier 1 capital (to average assets), Minimum Capital Requirement, Amount	$ 106,059
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent)	4.00%
Two Thousand Fifteen Period | Scenario, Forecast
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Actual Amount	$ 96,110
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)	7.00%
Capital Required for Capital Adequacy	$ 144,165
Capital Required for Capital Adequacy to Risk Weighted Assets	10.50%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Amount	$ 116,705
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)	8.50%
Tier 1 capital (to average assets), Minimum Capital Requirement, Amount	$ 73,311
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent)	4.00%
Two Thousand Fifteen Period | Scenario, Forecast | Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Actual Amount	$ 95,807
Tier 1 common equity, (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)	7.00%
Capital Required for Capital Adequacy	$ 143,711
Capital Required for Capital Adequacy to Risk Weighted Assets	10.50%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Amount	$ 116,337
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement, Ratio (as a percent)	8.50%
Tier 1 capital (to average assets), Minimum Capital Requirement, Amount	$ 73,186
Tier 1 capital (to average assets), Minimum Capital Requirement, Ratio (as a percent)	4.00%

Commitments and Credit Risk (De

Commitments and Credit Risk (Details) $ in Thousands	Dec. 31, 2017USD ($)
Commitments and Contingencies Disclosure [Abstract]
2,018	$ 733
2,019	747
2,020	760
2,021	315
2,022	229
Thereafter	116
Total	$ 2,900

Commitments and Credit Risk (80

Commitments and Credit Risk (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Loan commitments	$ 155.4	$ 132.5
Operating lease expense	0.7	$ 0.6	$ 0.5
Minimum sublease rentals due	1.6
Capital committed to Small Business Investment Company fund, not contributed	$ 3.2

Fair Value of Financial Instr81

Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	$ 473,275	$ 456,700
Loans held-for-sale (mandatory pricing agreements)	23,571	27,101
IRLCs
Schedule of Available-for-sale Securities [Line Items]
Derivatives	551	610
Interest rate swaps
Schedule of Available-for-sale Securities [Line Items]
Derivatives	(271)
Forward contracts
Schedule of Available-for-sale Securities [Line Items]
Derivatives	(80)	438
Loans held for sale
Schedule of Available-for-sale Securities [Line Items]
Loans held-for-sale (mandatory pricing agreements)	23,571	27,101
U.S. Government-sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	133,190	91,896
Municipals
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	96,377	91,886
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	209,720	231,641
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	5,009	19,534
Corporate securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	26,047	18,811
Other securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	2,932	2,932
Quoted Prices in Active Markets for Identical Assets (Level 1)
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	2,932	2,932
Loans held-for-sale (mandatory pricing agreements)	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | IRLCs
Schedule of Available-for-sale Securities [Line Items]
Derivatives	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate swaps
Schedule of Available-for-sale Securities [Line Items]
Derivatives	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Forward contracts
Schedule of Available-for-sale Securities [Line Items]
Derivatives	(80)	438
Quoted Prices in Active Markets for Identical Assets (Level 1) | Loans held for sale
Schedule of Available-for-sale Securities [Line Items]
Loans held-for-sale (mandatory pricing agreements)	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Government-sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Municipals
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities		2,932
Other Securities Fair Value	2,932
Significant Other Observable Inputs (Level 2)
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	470,343	453,768
Significant Other Observable Inputs (Level 2) | IRLCs
Schedule of Available-for-sale Securities [Line Items]
Derivatives	0	0
Significant Other Observable Inputs (Level 2) | Interest rate swaps
Schedule of Available-for-sale Securities [Line Items]
Derivatives	(271)
Significant Other Observable Inputs (Level 2) | Forward contracts
Schedule of Available-for-sale Securities [Line Items]
Derivatives	0	0
Significant Other Observable Inputs (Level 2) | Loans held for sale
Schedule of Available-for-sale Securities [Line Items]
Loans held-for-sale (mandatory pricing agreements)	23,571	27,101
Significant Other Observable Inputs (Level 2) | U.S. Government-sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	133,190	91,896
Significant Other Observable Inputs (Level 2) | Municipals
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	96,377	91,886
Significant Other Observable Inputs (Level 2) | Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	209,720	231,641
Significant Other Observable Inputs (Level 2) | Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	5,009	19,534
Significant Other Observable Inputs (Level 2) | Corporate securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	26,047	18,811
Significant Other Observable Inputs (Level 2) | Other securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	0	0
Significant Unobservable Inputs (Level 3)
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	0	0
Loans held-for-sale (mandatory pricing agreements)	0
Significant Unobservable Inputs (Level 3) | IRLCs
Schedule of Available-for-sale Securities [Line Items]
Derivatives	551	610
Significant Unobservable Inputs (Level 3) | Interest rate swaps
Schedule of Available-for-sale Securities [Line Items]
Derivatives	0
Significant Unobservable Inputs (Level 3) | Forward contracts
Schedule of Available-for-sale Securities [Line Items]
Derivatives	0	0
Significant Unobservable Inputs (Level 3) | Loans held for sale
Schedule of Available-for-sale Securities [Line Items]
Loans held-for-sale (mandatory pricing agreements)	0	0
Significant Unobservable Inputs (Level 3) | U.S. Government-sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	0	0
Significant Unobservable Inputs (Level 3) | Municipals
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	0	0
Significant Unobservable Inputs (Level 3) | Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	0	0
Significant Unobservable Inputs (Level 3) | Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	0	0
Significant Unobservable Inputs (Level 3) | Corporate securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	0
Significant Unobservable Inputs (Level 3) | Other securities
Schedule of Available-for-sale Securities [Line Items]
Total available-for-sale securities	$ 0	$ 0

Fair Value of Financial Instr82

Fair Value of Financial Instruments - Recurring Fair Value Measurements Reconciliation (Details) - IRLCs - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance	$ 610	$ 582	$ 521
Total realized gains
Included in other comprehensive income			0
Sales			0
Balance	551	610	582
Included in net income
Total realized gains
Included in net income	$ (59)	$ 28	$ 61

Fair Value of Financial Instr83

Fair Value of Financial Instruments - Unobservable (Level 3) Inputs (Details) - IRLCs - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
IRLCs, Fair Value	$ 551	$ 610
Significant Unobservable Inputs (Level 3)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Other securities, Valuation Technique	Discounted cash flow
Other securities, Unobservable Inputs	Loan closing rates
IRLCs, Fair Value	$ 551	$ 610
Significant Unobservable Inputs (Level 3) | Minimum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
IRLC, Range, Loan closing rates (as a percent)	43.00%	43.00%
Significant Unobservable Inputs (Level 3) | Maximum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
IRLC, Range, Loan closing rates (as a percent)	99.00%	100.00%

Fair Value of Financial Instr84

Fair Value of Financial Instruments - Carrying Value and Estimated Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Carrying Value	$ 47,981	$ 39,452	$ 25,152	$ 28,289
Interest-bearing time deposits, Carrying Amount	0	250
Held-to-maturity Securities	19,209	16,671
Held-to-maturity securities, fair value	19,083	16,197
Loans held-for-sale		16,671
Loans held-for-sale (mandatory pricing agreements)	23,571	27,101
Loans	2,091,193	1,250,789
Accrued interest receivable, Carrying Amount	11,944	6,708
FHLB stock, Carrying Amount	19,575	8,910
Deposits, Carrying Amount	2,084,941	1,462,867
FHLB advances, Carrying Amount	410,176	189,981
Subordinated Debt, Carrying Value	36,726	36,578
Accrued interest payable, Carrying Amount	311	112
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale (mandatory pricing agreements)	0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale (mandatory pricing agreements)	0
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, Fair Value	47,981	39,452
Interest bearing time deposits, Fair Value		250
Held-to-maturity securities, fair value	19,083
Loans held-for-sale (mandatory pricing agreements)	27,835	16,197
Loans receivable - net, Fair Value	2,051,545	1,244,918
Accrued interest receivable, Fair Value	11,944	6,708
FHLB stock, Fair Value	19,575	8,910
Deposits, Fair Value	2,057,708	1,441,794
FHLB advances, Fair Value	397,950	186,258
Subordinated Debt, Fair Value	39,972	38,425
Accrued interest payable, Fair Value	311	112
Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, Fair Value	47,981	39,452
Interest bearing time deposits, Fair Value		250
Held-to-maturity securities, fair value	0
Loans held-for-sale (mandatory pricing agreements)		0
Loans receivable - net, Fair Value	0	0
Accrued interest receivable, Fair Value	11,944	6,708
FHLB stock, Fair Value	0	0
Deposits, Fair Value	688,800	492,435
FHLB advances, Fair Value	0	0
Subordinated Debt, Fair Value	26,520	24,900
Accrued interest payable, Fair Value	311	112
Fair Value | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, Fair Value	0	0
Interest bearing time deposits, Fair Value		0
Held-to-maturity securities, fair value	19,083
Loans held-for-sale	27,835
Loans held-for-sale (mandatory pricing agreements)	27,835	16,197
Loans receivable - net, Fair Value	0	0
Accrued interest receivable, Fair Value	0	0
FHLB stock, Fair Value	19,575	8,910
Deposits, Fair Value	0	0
FHLB advances, Fair Value	397,950	186,258
Subordinated Debt, Fair Value	13,452	13,525
Accrued interest payable, Fair Value	0	0
Fair Value | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, Fair Value	0	0
Interest bearing time deposits, Fair Value		0
Held-to-maturity securities, fair value	0
Loans held-for-sale (mandatory pricing agreements)		0
Loans receivable - net, Fair Value	2,051,545	1,244,918
Accrued interest receivable, Fair Value	0	0
FHLB stock, Fair Value	0	0
Deposits, Fair Value	1,368,908	949,359
FHLB advances, Fair Value	0	0
Subordinated Debt, Fair Value	0	0
Accrued interest payable, Fair Value	$ 0	$ 0

Mortgage Banking Activities (De

Mortgage Banking Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Mortgage Banking [Abstract]
Loans originated for sale	$ 412,925	$ 598,439	$ 502,716
Proceeds from sale of loans originated for sale	425,262	619,818	509,373
Gain on loans sold	7,775	12,462	8,845
Gain (loss) resulting from the change in fair value of loans held-for-sale	638	(500)	(341)
Gain (loss) resulting from the change in fair value of derivatives	(577)	436	496
Mortgage banking activities	$ 7,836	$ 12,398	$ 9,000

Derivative Financial Instrume86

Derivative Financial Instruments - Carrying Amount and Adjustment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosures [Line Items]
AFS, amortized cost basis	$ 481,357	$ 471,070
Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
AFS, amortized cost basis	50,000	0
Loans | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying amount of the hedged assets	91,653	0
Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged assets	(263)	0
Securities available-for-sale | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying amount of the hedged assets	92,230	0
Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged assets	$ (8)	$ 0

Derivative Financial Instrume87

Derivative Financial Instruments - Interest Swap Derivatives (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value	$ 123,235,000	$ 0
Interest rate swaps | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value	$ 141,135,000
Weighted Average Remaining Maturity (years)	7 years 6 months
Fair Value	$ (271,000)
Weighted-Average Rate	2.41%
Cash pledged as collateral	$ 700,000
Loans | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value	(263,000)	0
Loans | Interest rate swaps | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value	$ 91,135,000
Weighted Average Remaining Maturity (years)	7 years 10 months 24 days
Fair Value	$ (263,000)
Weighted-Average Rate	2.44%
Securities available-for-sale | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value	$ (8,000)	$ 0
Securities available-for-sale | Interest rate swaps | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value	$ 50,000,000
Weighted Average Remaining Maturity (years)	6 years 9 months 18 days
Fair Value	$ (8,000)
Weighted-Average Rate	2.33%

Derivative Financial Instrume88

Derivative Financial Instruments - Notional Amounts and Fair Value (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Asset Derivatives
Notional Amount	$ 95,418,000	$ 97,311,000
Fair Value	474,000	1,048,000
Derivative Liability [Abstract]
Notional Amount	123,235,000	0
Fair Value	(274,000)	0
Derivatives designated as hedging instruments | Interest rate swaps
Asset Derivatives
Notional Amount	17,900,000	0
Fair Value	3,000	0
Derivative Liability [Abstract]
Notional Amount	73,235,000	0
Fair Value	(266,000)	0
Notional Amount	141,135,000
Derivatives designated as hedging instruments | Interest rate swaps associated with securities available-for-sale
Derivative Liability [Abstract]
Notional Amount	50,000,000	0
Fair Value	(8,000)	0
Derivatives not designated as hedging instruments | IRLCs
Asset Derivatives
Notional Amount	26,394,000	36,311,000
Fair Value	551,000	610,000
Derivatives not designated as hedging instruments | Forward contracts
Asset Derivatives
Notional Amount	51,124,000	61,000,000
Fair Value	$ (80,000)	$ 438,000

Derivative Financial Instrume89

Derivative Financial Instruments - Gain (Loss) Recognized (Details) - Asset Derivatives - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
IRLCs
Asset Derivatives
Derivatives not designated as hedging instruments	$ (59)	$ 28	$ 61
Forward contracts
Asset Derivatives
Derivatives not designated as hedging instruments	$ (519)	$ 408	$ 435

Shareholders' Equity (Details T

Shareholders' Equity (Details Textual) - Common Stock - USD ($)	1 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	May 31, 2016	Dec. 31, 2017
Public Offering
Shareholders Equity [Line Items]
Number of shares issued	1,650,000
Proceeds from issuance	$ 44,800,000
Price per share (in dollars per share)	$ 29
Over-Allotment Option
Shareholders Equity [Line Items]
Number of shares issued	247,500
Proceeds from issuance	$ 6,800,000
Option to purchase additional stock, period	30 days
Underwriting Agreement
Shareholders Equity [Line Items]
Price per share (in dollars per share)		$ 26.50
At The Market Offering (ATM Program)
Shareholders Equity [Line Items]
Remaining authorized available for sale amount				$ 21,600,000
The Bank | Underwriting Agreement
Shareholders Equity [Line Items]
Number of shares issued		945,000	895,955
Proceeds from issuance		$ 23,400,000	$ 19,700,000
Price per share (in dollars per share)			$ 24
The Bank | At The Market Offering (ATM Program)
Shareholders Equity [Line Items]
Number of shares issued			139,811
Proceeds from issuance			$ 3,100,000
Authorized amount			$ 25,000,000
Commissions fee percent			3.00%

Condensed Financial Informati91

Condensed Financial Information (Parent Company Only) - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 47,981	$ 39,452	$ 25,152	$ 28,289
Premises and equipment, net	10,058	10,044
Accrued income and other assets	13,182	15,276
Total assets	2,767,687	1,854,335
Liabilities and shareholders’ equity
Subordinated debt, net of unamortized discounts and debt issuance costs of $1,274 in 2017 and $1,422 in 2016	36,726	36,578
Accrued expenses and other liabilities	11,406	10,855
Total liabilities	2,543,560	1,700,393
Total shareholders’ equity	224,127	153,942	104,330	96,785
Total liabilities and shareholders’ equity	2,767,687	1,854,335
Parent Company
Assets
Cash and cash equivalents	32,810	29,365	$ 6,860	$ 10,056
Investment in common stock of subsidiaries	223,008	158,080
Premises and equipment, net	6,576	6,852
Accrued income and other assets	3,114	1,488
Total assets	265,508	195,785
Liabilities and shareholders’ equity
Subordinated debt, net of unamortized discounts and debt issuance costs of $1,274 in 2017 and $1,422 in 2016	36,726	36,578
Note payable to the Bank	3,600	4,000
Accrued expenses and other liabilities	1,055	1,265
Total liabilities	41,381	41,843
Total shareholders’ equity	224,127	153,942
Total liabilities and shareholders’ equity	$ 265,508	$ 195,785

Condensed Financial Informati92

Condensed Financial Information (Parent Company Only) - Condensed Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Expenses
Interest on borrowings									$ 6,740	$ 3,357	$ 1,939
Salaries and employee benefits									21,164	17,387	14,271
Consulting and professional fees									3,091	3,143	2,374
Premises and equipment									4,183	3,699	2,768
Income tax benefit	$ 3,521	$ 1,694	$ 1,464	$ 1,023	$ 1,671	$ 1,521	$ 1,421	$ 1,298	7,702	5,911	4,736
Net income	$ 3,498	$ 4,895	$ 4,001	$ 2,832	$ 3,710	$ 3,098	$ 2,834	$ 2,432	15,226	12,074	8,929
Parent Company
Expenses
Interest on borrowings									2,724	1,557	643
Salaries and employee benefits									354	344	425
Consulting and professional fees									664	871	930
Premises and equipment									302	291	200
Other									258	235	174
Total expenses									4,302	3,298	2,372
Loss before income tax and equity in undistributed net income of subsidiaries									(4,302)	(3,298)	(2,372)
Income tax benefit									(1,539)	(1,224)	(813)
Loss before equity in undistributed net income of subsidiaries									(2,763)	(2,074)	(1,559)
Equity in undistributed net income of subsidiaries									17,989	14,148	10,488
Net income									$ 15,226	$ 12,074	$ 8,929

Condensed Financial Informati93

Condensed Financial Information (Parent Company Only) - Condensed Statements of Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule Of Condensed Comprehensive Income [Line Items]
Net income	$ 3,498	$ 4,895	$ 4,001	$ 2,832	$ 3,710	$ 3,098	$ 2,834	$ 2,432	$ 15,226	$ 12,074	$ 8,929
Other comprehensive income (loss)
Net unrealized holding gains (losses) on securities available-for-sale									6,280	(12,315)	(1,669)
Reclassification adjustment for losses (gains) realized									8	(177)	0
Other comprehensive income (loss) before tax									6,288	(12,492)	(1,669)
Income tax provision (benefit)									2,039	(4,433)	(595)
Other comprehensive income (loss) - net of tax									4,249	(8,059)	(1,074)
Comprehensive income									19,475	4,015	7,855
Parent Company
Schedule Of Condensed Comprehensive Income [Line Items]
Net income									15,226	12,074	8,929
Other comprehensive income (loss)
Net unrealized holding gains (losses) on securities available-for-sale									6,280	(12,315)	(1,669)
Reclassification adjustment for losses (gains) realized									8	(177)	0
Other comprehensive income (loss) before tax									6,288	(12,492)	(1,669)
Other comprehensive income (loss) - net of tax									4,249	(8,059)	(1,074)
Comprehensive income									$ 19,475	$ 4,015	$ 7,855

Condensed Financial Informati94

Condensed Financial Information (Parent Company Only) - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Activities
Net income	$ 3,498	$ 4,895	$ 4,001	$ 2,832	$ 3,710	$ 3,098	$ 2,834	$ 2,432	$ 15,226	$ 12,074	$ 8,929
Depreciation and amortization									5,299	3,799	1,942
Share-based compensation expense									1,038	736	762
Net change in other assets									(2,273)	(7,390)	(1,227)
Net change in other liabilities									554	1,041	858
Investing activities
Purchase of premises and equipment									(1,517)	(3,173)	(2,543)
Financing activities
Cash dividends paid									(1,675)	(1,199)	(1,093)
Net proceeds from issuance of subordinated debt									0	23,757	9,761
Net proceeds from common stock issuance									51,636	46,223	0
Other, net									(173)	(42)	23
Net increase (decrease) in cash and cash equivalents									8,529	14,300	(3,137)
Cash and cash equivalents, beginning of year				39,452				25,152	39,452	25,152	28,289
Cash and cash equivalents, end of year	47,981				39,452				47,981	39,452	25,152
Parent Company
Operating Activities
Net income									15,226	12,074	8,929
Equity in undistributed net income of subsidiaries									(17,989)	(14,148)	(10,488)
Depreciation and amortization									572	461	246
Share-based compensation expense									175	128	150
Net change in other assets									(1,453)	(696)	958
Net change in other liabilities									(326)	870	(275)
Net cash used in operating activities									(3,795)	(1,311)	(480)
Investing activities
Capital contribution to the Bank									(42,000)	(43,500)	(10,000)
Purchase of premises and equipment									(148)	(1,423)	(1,407)
Net cash used in investing activities									(42,148)	(44,923)	(11,407)
Financing activities
Cash dividends paid									(1,675)	(1,199)	(1,093)
Net proceeds from issuance of subordinated debt									0	23,757	9,761
Principal payment on loan from the Bank									(400)	0	0
Net proceeds from common stock issuance									51,636	46,223	0
Other, net									(173)	(42)	23
Net cash provided by financing activities									49,388	68,739	8,691
Net increase (decrease) in cash and cash equivalents									3,445	22,505	(3,196)
Cash and cash equivalents, beginning of year				$ 29,365				$ 6,860	29,365	6,860	10,056
Cash and cash equivalents, end of year	$ 32,810				$ 29,365				$ 32,810	$ 29,365	$ 6,860

Quarterly Financial Data (una95

Quarterly Financial Data (unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Total interest income	$ 24,638	$ 22,694	$ 19,975	$ 17,390	$ 16,764	$ 15,471	$ 13,971	$ 12,693	$ 84,697	$ 58,899	$ 41,447
Total interest expense	9,278	8,503	7,001	5,933	5,860	5,133	4,665	3,552	30,715	19,210	10,694
Net interest income	15,360	14,191	12,974	11,457	10,904	10,338	9,306	9,141	53,982	39,689	30,753
Provision for loan losses	1,179	1,336	1,322	1,035	256	2,204	924	946	4,872	4,330	1,946
Net interest income after provision for loan losses	14,181	12,855	11,652	10,422	10,648	8,134	8,382	8,195	49,110	35,359	28,807
Total noninterest income	2,539	3,135	2,736	2,131	2,891	4,898	3,748	2,540	10,541	14,077	10,141
Total noninterest expense	9,701	9,401	8,923	8,698	8,158	8,413	7,875	7,005	36,723	31,451	25,283
Income before income taxes	7,019	6,589	5,465	3,855	5,381	4,619	4,255	3,730	22,928	17,985	13,665
Income tax provision	3,521	1,694	1,464	1,023	1,671	1,521	1,421	1,298	7,702	5,911	4,736
Net income	$ 3,498	$ 4,895	$ 4,001	$ 2,832	$ 3,710	$ 3,098	$ 2,834	$ 2,432	$ 15,226	$ 12,074	$ 8,929
Basic (in dollars per share)	$ 0.41	$ 0.72	$ 0.61	$ 0.43	$ 0.65	$ 0.55	$ 0.57	$ 0.54	$ 2.14	$ 2.32	$ 1.97
Diluted (in dollars per share)	$ 0.41	$ 0.71	$ 0.61	$ 0.43	$ 0.64	$ 0.55	$ 0.57	$ 0.53	$ 2.13	$ 2.30	$ 1.96
Weighted-average common shares (in shares)	8,490,951	6,834,011	6,583,515	6,547,807	5,722,615	5,597,867	4,972,759	4,541,728	7,118,628	5,211,209	4,528,528
Diluted (shares)	8,527,599	6,854,614	6,597,991	6,602,200	5,761,931	5,622,181	4,992,025	4,575,555	7,149,302	5,239,082	4,554,219