Isabella Bank (ISBA) 10-Q 3 Nov 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 31, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	ISABELLA BANK CORP
Entity Central Index Key	842,517
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Amendment Flag	false
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		7,853,629

Interim Condensed Consolidated

Interim Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Cash and cash equivalents
Cash and demand deposits due from banks	$ 20,650	$ 20,167
Interest bearing balances due from banks	417	2,727
Total cash and cash equivalents	21,067	22,894
AFS securities (amortized cost of $548,468 in 2017 and $557,648 in 2016)	552,925	558,096
Mortgage loans AFS	1,237	1,816
Loans
Commercial	620,135	575,664
Agricultural	132,998	126,492
Residential real estate	271,480	266,050
Consumer	52,931	42,409
Gross loans	1,077,544	1,010,615
Less allowance for loan losses	7,700	7,400
Net loans	1,069,844	1,003,215
Premises and equipment	28,761	29,314
Corporate owned life insurance	26,837	26,300
Accrued interest receivable	7,388	6,580
Equity securities without readily determinable fair values	23,461	21,694
Goodwill and other intangible assets	48,575	48,666
Other assets	11,872	13,576
TOTAL ASSETS	1,791,967	1,732,151
Deposits
Noninterest bearing	212,608	205,071
NOW accounts	220,601	209,325
Certificates of deposit under $250 and other savings	723,834	717,078
Certificates of deposit over $250	59,019	63,566
Total deposits	1,216,062	1,195,040
Borrowed funds	367,027	337,694
Accrued interest payable and other liabilities	12,415	11,518
Total liabilities	1,595,504	1,544,252
Shareholders' equity
Common stock — no par value 15,000,000 shares authorized; issued and outstanding 7,856,664 shares (including 28,547 shares held in the Rabbi Trust) in 2017 and 7,821,069 shares (including 26,042 shares held in the Rabbi Trust) in 2016	140,368	139,525
Shares to be issued for deferred compensation obligations	5,364	5,038
Retained earnings	50,680	46,114
Accumulated other comprehensive income	51	(2,778)
Total shareholders' equity	196,463	187,899
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,791,967	$ 1,732,151

Interim Condensed Consolidated3

Interim Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Available-for-sale securities, amortized cost	$ 548,468	$ 557,648
Common stock, shares authorized	15,000,000	15,000,000
Common stock, shares issued	7,856,664	7,821,069
Common stock, shares outstanding	7,856,664	7,821,069
Common stock, shares held in Rabbi Trust	28,547	26,042

Interim Condensed Consolidated4

Interim Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest income
Loans, including fees	$ 11,297	$ 9,965	$ 32,102	$ 28,320
AFS securities
Taxable	2,075	2,037	6,452	6,740
Nontaxable	1,406	1,411	4,234	4,337
Federal funds sold and other	198	194	547	509
Total interest income	14,976	13,607	43,335	39,906
Interest expense
Deposits	1,715	1,496	4,870	4,313
Borrowings	1,485	1,251	4,189	3,726
Total interest expense	3,200	2,747	9,059	8,039
Net interest income	11,776	10,860	34,276	31,867
Provision for loan losses	49	17	85	185
Net interest income after provision for loan losses	11,727	10,843	34,191	31,682
Noninterest income
Service charges and fees	1,435	1,276	4,370	3,652
Net gain on sale of mortgage loans	153	263	507	472
Earnings on corporate owned life insurance policies	174	183	537	566
Net gains (losses) on sale of AFS securities	0	0	142	245
Other	936	1,224	2,546	2,986
Total noninterest income	2,698	2,946	8,102	7,921
Noninterest expenses
Compensation and benefits	5,360	4,940	15,869	14,412
Furniture and equipment	1,377	1,353	4,073	3,988
Occupancy	809	845	2,461	2,443
Other	2,593	2,295	7,194	6,888
Total noninterest expenses	10,139	9,433	29,597	27,731
Income before federal income tax expense	4,286	4,356	12,696	11,872
Federal Income Tax Expense (Benefit), Continuing Operations	750	763	2,180	1,855
NET INCOME	$ 3,536	$ 3,593	$ 10,516	$ 10,017
Earnings per share
Basic (in dollars per share)	$ 0.45	$ 0.46	$ 1.34	$ 1.28
Diluted (in dollars per share)	0.44	0.45	1.31	1.25
Cash dividends per basic share (in dollars per share)	$ 0.26	$ 0.25	$ 0.76	$ 0.73

Interim Condensed Consolidated5

Interim Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 3,536	$ 3,593	$ 10,516	$ 10,017
Unrealized gains (losses) on AFS securities
Unrealized gains (losses) on AFS securities arising during the period	96	2,548	(4,151)	(8,793)
Reclassification adjustment for net realized (gains) losses included in net income	0	0	(142)	(245)
Tax effect	54	937	(1,158)	(2,713)
Unrealized gains (losses) on AFS securities, net of tax	(42)	(1,611)	2,851	5,835
Unrealized gains (losses) on derivative instruments arising during the period	11	91	(33)	(61)
Tax effect	(4)	(31)	11	21
Unrealized gains (losses) on derivative instruments, net of tax	7	60	(22)	(40)
Other comprehensive income, net of tax	(35)	(1,551)	2,829	5,795
Comprehensive income	$ 3,501	$ 2,042	$ 13,345	$ 15,812

Interim Condensed Consolidated6

Interim Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Shares to be Issued for Deferred Compensation Obligations	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balances at Dec. 31, 2015	$ 183,971	$ 139,198	$ 4,592	$ 39,960	$ 221
Beginning balances, shares at Dec. 31, 2015		7,799,867
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	15,812			10,017	5,795
Issuance of common stock	3,683	$ 3,683
Issuance of common stock, shares		131,697
Common stock transferred from the Rabbi Trust to satisfy deferred compensation obligations	0	$ 127	(127)
Share based payment awards under equity compensation plan	443		443
Common stock purchased for deferred compensation obligations	(279)	(279)
Common stock repurchased pursuant to publicly announced repurchase plan	(2,749)	$ (2,749)
Common stock repurchased pursuant to publicly announced repurchase plan, shares		(98,083)
Cash dividends	(5,697)			(5,697)
Ending balances at Sep. 30, 2016	195,184	$ 139,980	4,908	44,280	6,016
Ending balances, shares at Sep. 30, 2016		7,833,481
Beginning balances at Dec. 31, 2016	$ 187,899	$ 139,525	5,038	46,114	(2,778)
Beginning balances, shares at Dec. 31, 2016	7,821,069	7,821,069
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	$ 13,345			10,516	2,829
Issuance of common stock	4,999	$ 4,999
Issuance of common stock, shares		178,712
Common stock transferred from the Rabbi Trust to satisfy deferred compensation obligations	0	$ 176	(176)
Share based payment awards under equity compensation plan	502		502
Common stock purchased for deferred compensation obligations	(327)	(327)
Common stock repurchased pursuant to publicly announced repurchase plan	(4,005)	$ (4,005)
Common stock repurchased pursuant to publicly announced repurchase plan, shares		(143,117)
Cash dividends	(5,950)			(5,950)
Ending balances at Sep. 30, 2017	$ 196,463	$ 140,368	$ 5,364	$ 50,680	$ 51
Ending balances, shares at Sep. 30, 2017	7,856,664	7,856,664

Interim Condensed Consolidated7

Interim Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Stockholders' Equity [Abstract]
Cash dividends per share (in dollars per share)	$ 0.26	$ 0.25	$ 0.76	$ 0.73

Interim Condensed Consolidated8

Interim Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
OPERATING ACTIVITIES
Net income	$ 10,516	$ 10,017
Reconciliation of net income to net cash provided by operating activities:
Provision for loan losses	85	185
Impairment of foreclosed assets	2	0
Depreciation	2,163	2,116
Amortization of OMSR	257	299
Amortization of acquisition intangibles	91	128
Net amortization of AFS securities	1,614	2,115
Available-for-sale Securities, Gross Realized Gain (Loss), Excluding Other than Temporary Impairments	142	245
Available-for-sale Securities, Gross Realized Gain (Loss)	(142)	(245)
Net gain on sale of mortgage loans	(507)	(472)
Increase in cash value of corporate owned life insurance policies	(537)	(566)
Share-based payment awards under equity compensation plan	502	443
Proceeds from loan sales	(28,436)	(22,994)
Proceeds from loan sales	29,522	23,968
Net changes in operating assets and liabilities which provided (used) cash:
Accrued interest receivable	(808)	(599)
Other assets	(1,491)	1,005
Accrued interest payable and other liabilities	897	165
Net cash provided by (used in) operating activities	13,728	15,565
Activity in AFS securities
Sales	12,827	35,664
Maturities and calls	78,352	111,543
Purchases	(83,471)	(44,622)
Net loan principal (originations) collections	(66,928)	(138,870)
Proceeds from sales of foreclosed assets	203	348
Purchases of premises and equipment	(1,610)	(2,771)
Proceeds from Life Insurance Policies	0	1,004
Net cash provided by (used in) investing activities	(60,627)	(37,704)
FINANCING ACTIVITIES
Net increase (decrease) in deposits	21,022	11,270
Increase in other borrowed funds	29,333	15,677
Cash dividends paid on common stock	(5,950)	(5,697)
Proceeds from issuance of common stock	4,999	3,683
Common stock repurchased	(4,005)	(2,749)
Common stock purchased for deferred compensation obligations	(327)	(279)
Net cash provided by (used in) financing activities	45,072	21,905
Increase (decrease) in cash and cash equivalents	(1,827)	(234)
Cash and cash equivalents at beginning of period	22,894	21,569
Cash and cash equivalents at end of period	21,067	21,335
SUPPLEMENTAL CASH FLOWS INFORMATION:
Interest paid	9,000	8,042
Federal income taxes paid	2,470	1,350
SUPPLEMENTAL NONCASH INFORMATION:
Transfers of loans to foreclosed assets	$ 214	$ 211

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation As used in these notes, as well as in Management's Discussion and Analysis of Financial Condition and Results of Operations , references to “Isabella,” the “Corporation”, “we,” “our,” “us,” and similar terms refer to the consolidated entity consisting of Isabella Bank Corporation and its subsidiaries. Isabella Bank Corporation refers solely to the parent holding company, and Isabella Bank or the “Bank” refer to Isabella Bank Corporation ’s subsidiary, Isabella Bank . The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In our opinion, all adjustments considered necessary for a fair presentation have been included. Operating results for the three and nine month periods ended September 30, 2017 are not necessarily indicative of the results that may be expected for the year ending December 31, 2017 . For further information, refer to our Annual Report on Form 10-K for the year ended December 31, 2016 . Our accounting policies are materially the same as those discussed in Note 1 to the Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2016 . Reclassifications: Certain amounts reported in the interim 2016 consolidated financial statements have been reclassified to conform with the 2017 presentation.

Computation of Earnings Per Com

Computation of Earnings Per Common Share	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Computation of Earnings Per Common Share	Computation of Earnings Per Common Share Basic earnings per common share represents income available to common shareholders divided by the weighted average number of common shares outstanding during the period. Diluted earnings per common share reflects additional common shares that would have been outstanding if dilutive potential common shares had been issued. Potential common shares that may be issued relate solely to outstanding shares in the Directors Plan . Three Months Ended Nine Months Ended 2017 2016 2017 2016 Average number of common shares outstanding for basic calculation 7,848,317 7,824,751 7,839,172 7,813,084 Average potential effect of common shares in the Directors Plan (1) 192,572 186,667 191,548 184,996 Average number of common shares outstanding used to calculate diluted earnings per common share 8,040,889 8,011,418 8,030,720 7,998,080 Net income $ 3,536 $ 3,593 $ 10,516 $ 10,017 Earnings per common share Basic $ 0.45 $ 0.46 $ 1.34 $ 1.28 Diluted $ 0.44 $ 0.45 $ 1.31 $ 1.25 (1) Exclusive of shares held in the Rabbi Trust

Pending Accounting Standards Up

Pending Accounting Standards Updates	9 Months Ended
	Sep. 30, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Pending Accounting Standards Updates	Accounting Standards Updates Pending Accounting Standards Updates ASU No. 2014-09: “Revenue from Contracts with Customers” In May 2014, ASU No. 2014-09 created new Topic 606 to provide a common revenue standard to achieve consistency and clarification to the revenue recognition principles. The guidance outlines steps to achieve the core principle which states 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. These steps consist of: (1) identify the contract(s) with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize revenue when (or as) the entity satisfies a performance obligation. The new authoritative guidance was originally effective on January 1, 2017; however, ASU 2015-14 was issued which deferred the effective date of ASU 2014-09 by one year to January 1, 2018. The majority of our income, as well as that of the vast majority of financial institutions, is excluded from this guidance. We are reviewing our contracts related to trust and investment services and those related to other noninterest income to determine if changes in income recognition is required as a result of this guidance. While we anticipate some change as a result of implementing this guidance, we do not expect it to have a significant impact on our operating results or financial statement disclosures. ASU No. 2016-02: “Leases (Topic 842)” In February 2016, ASU No. 2016-02 was issued to create Topic 842 - Leases which will require recognition of lease assets and lease liabilities on the balance sheet for leases previously classified as operating leases. Accounting guidance is set forth for both lessee and lessor accounting. Under lessee accounting, a lessee should recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. For finance leases, a lessee is required to do the following: 1) recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in the statement of financial position; 2) recognize interest on the lease liability separately from amortization of the right-of-use asset in the statement of comprehensive income; and 3) classify repayments of the principal portion of the lease liability within financing activities and payments of interest on the lease liability and variable lease payments within operating activities in the statement of cash flows. For operating leases, a lessee is required to do the following: 1) recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in the statement of financial position; 2) recognize a single lease cost, calculated so that the cost of the lease is allocated over the lease term on a generally straight-line basis; and 3) classify all cash payments within operating activities in the statement of cash flows. The accounting applied by a lessor is largely unchanged from that applied under previous GAAP. The new authoritative guidance is effective for interim and annual periods beginning after December 15, 2018. We have and will continue to review our lease agreements to determine the appropriate treatment under this guidance. We do not expect these changes to have a significant impact on our operating results or financial statement disclosures. ASU No. 2017-09: “ Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting” In May 2017, ASU No. 2017-09 provided guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting under Topic 718. The current disclosure requirements in Topic 718 apply regardless of whether an entity is required to apply modification accounting under the amendments in this update. An entity should account for the effects of a modification unless all of the following are met: 1. The fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the modified award is the same as the fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the original award immediately before the original award is modified. If the modification does not affect any of the inputs to the valuation technique that the entity uses to value the award, the entity is not required to estimate the value immediately before and after the modification. 2. The vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the original award is modified. 3. The classification of the modified award as an equity instrument or a liability instrument is the same as the classification of the original award immediately before the original award is modified. The new authoritative guidance is effective for interim and annual periods beginning after December 15, 2017 and is not expected to have a significant impact on our operating results or financial statement disclosures. ASU No. 2017-12: “ Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities” In August 2017, ASU No. 2017-12 was issued to improve financial reporting of hedging activities to better portray the economic results of an entity’s risk management activities. The update provides changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results. The update addresses current GAAP designation limitations by permitting hedge accounting for risk components in hedging relationships involving nonfinancial risk and interest rate risk as follows: 1. For a cash flow hedge of a forecasted purchase or sale of a nonfinancial asset, an entity could designate as the hedged risk the variability in cash flows attributable to changes in a contractually specified component stated in the contract. The amendments remove the requirement in current GAAP that only the overall variability in cash flows or variability related to foreign currency risk could be designated as the hedged risk in a cash flow hedge of a nonfinancial asset. 2. For a cash flow hedge of interest rate risk of a variable-rate financial instrument, an entity could designate as the hedged risk the variability in cash flows attributable to the contractually specified interest rate. By eliminating the concept of benchmark interest rates for hedges of variable-rate instruments in current GAAP, the amendments remove the requirement to designate only the overall variability in cash flows as the hedged risk in a cash flow hedge of a variable-rate instrument indexed to a non-benchmark interest rate. 3. For a fair value hedge of interest rate risk, the amendments add the Securities Industry and Financial Markets Association (SIFMA) Municipal Swap Rate as an eligible benchmark interest rate in the United States in addition to those already permitted under current GAAP (the U.S. Treasury Rate, the London Interbank Offered Rate [LIBOR] Swap Rate, and the Fed Funds Effective Swap Rate [or Overnight Index Swap Rate]). This allows an entity that issues or invests in fixed-rate tax-exempt financial instruments to designate as the hedged risk changes in fair value attributable to interest rate risk related to the SIFMA Municipal Swap Rate rather than overall changes in fair value. The amendments in this update provide further revisions to the current limitations on designation in a fair value hedge of interest rate risk. Specifically, the update changes the guidance for designating fair value hedges of interest rate risk and for measuring the change in fair value of the hedged item in fair value hedges of interest rate risk by providing four permissible accounting treatments. In addition to the amendments to the designation and measurement guidance for qualifying hedging relationships, the amendments in this update also align the recognition and presentation of the effects of the hedging instrument and the hedged item in the financial statements. The following recognition and presentation guidance for qualifying hedges is required: 1. For fair value hedges, the entire change in the fair value of the hedging instrument included in the assessment of hedge effectiveness is presented in the same income statement line that is used to present the earnings effect of the hedged item. The timing of recognition of the change in fair value of a hedging instrument included in the assessment of hedge effectiveness is the same as under current GAAP, but the presentation of hedge results could change because current GAAP does not specify a required presentation of the change in fair value of the hedging instrument. 2. For cash flow and net investment hedges, the entire change in the fair value of the hedging instrument included in the assessment of hedge effectiveness is recorded in other comprehensive income (for cash flow hedges) or in the currency translation adjustment section of other comprehensive income (for net investment hedges). Those amounts are reclassified to earnings in the same income statement line item that is used to present the earnings effect of the hedged item when the hedged item affects earnings. The timing of recognition of the change in fair value of a hedging instrument could change relative to current GAAP because hedge ineffectiveness no longer is recognized in current period earnings. The presentation of hedge results also could change because current GAAP does not specify a required presentation of the change in fair value of the hedging instrument in the income statement. Lastly, the guidance within this update provides exclusions from the hedge effectiveness assessment and five other targeted improvements to current guidance also related to the assessment of hedge effectiveness. Excluding option premiums and forward points will still be permissible under the new guidance. The new authoritative guidance is effective for interim and annual periods beginning after December 15, 2018 and is not expected to have a significant impact on our operating results or financial statement disclosures.

AFS Securities

AFS Securities	9 Months Ended
	Sep. 30, 2017
Investments, Debt and Equity Securities [Abstract]
AFS Securities	AFS Securities The amortized cost and fair value of AFS securities , with gross unrealized gains and losses, are as follows at: September 30, 2017 Amortized Gross Gross Fair Government sponsored enterprises $ 231 $ 1 $ — $ 232 States and political subdivisions 207,874 5,596 13 213,457 Auction rate money market preferred 3,200 — 28 3,172 Preferred stocks 3,800 — 149 3,651 Mortgage-backed securities 216,684 860 1,630 215,914 Collateralized mortgage obligations 116,679 600 780 116,499 Total $ 548,468 $ 7,057 $ 2,600 $ 552,925 December 31, 2016 Amortized Gross Gross Fair Government sponsored enterprises $ 10,258 $ 3 $ 2 $ 10,259 States and political subdivisions 208,977 4,262 320 212,919 Auction rate money market preferred 3,200 — 406 2,794 Preferred stocks 3,800 — 375 3,425 Mortgage-backed securities 229,593 581 2,918 227,256 Collateralized mortgage obligations 101,820 600 977 101,443 Total $ 557,648 $ 5,446 $ 4,998 $ 558,096 The amortized cost and fair value of AFS securities by contractual maturity at September 30, 2017 are as follows: Maturing Securities with Variable Monthly Payments or Noncontractual Maturities Due in After One After Five After Total Government sponsored enterprises $ — $ 231 $ — $ — $ — $ 231 States and political subdivisions 25,689 73,810 75,598 32,777 — 207,874 Auction rate money market preferred — — — — 3,200 3,200 Preferred stocks — — — — 3,800 3,800 Mortgage-backed securities — — — — 216,684 216,684 Collateralized mortgage obligations — — — — 116,679 116,679 Total amortized cost $ 25,689 $ 74,041 $ 75,598 $ 32,777 $ 340,363 $ 548,468 Fair value $ 25,746 $ 76,105 $ 78,383 $ 33,455 $ 339,236 $ 552,925 Expected maturities for government sponsored enterprises and states and political subdivisions may differ from contractual maturities because issuers may have the right to call or prepay obligations. As the auction rate money market preferred and preferred stocks have continual call dates, they are not reported by a specific maturity group. Because of their variable monthly payments, mortgage-backed securities and collateralized mortgage obligations are not reported by a specific maturity group. A summary of the sales activity of AFS securities was as follows for the: Three Months Ended September 30 Nine Months Ended September 30 2017 2016 2017 2016 Proceeds from sales of AFS securities $ — $ — $ 12,827 $ 35,664 Gross realized gains (losses) $ — $ — $ 142 $ 245 Applicable income tax expense (benefit) $ — $ — $ 48 $ 83 The following information pertains to AFS securities with gross unrealized losses at September 30, 2017 and December 31, 2016 , aggregated by investment category and length of time that individual securities have been in a continuous loss position. September 30, 2017 Less Than Twelve Months Twelve Months or More Gross Fair Gross Fair Total Government sponsored enterprises $ — $ — $ — $ — $ — States and political subdivisions 12 3,321 1 221 13 Auction rate money market preferred — — 28 3,172 28 Preferred stocks — — 149 3,651 149 Mortgage-backed securities 1,277 106,229 353 12,777 1,630 Collateralized mortgage obligations 331 33,969 449 15,303 780 Total $ 1,620 $ 143,519 $ 980 $ 35,124 $ 2,600 Number of securities in an unrealized loss position: 35 13 48 December 31, 2016 Less Than Twelve Months Twelve Months or More Gross Fair Gross Fair Total Government sponsored enterprises $ 2 $ 9,936 $ — $ — $ 2 States and political subdivisions 311 21,800 9 355 320 Auction rate money market preferred — — 406 2,794 406 Preferred stocks — — 375 3,425 375 Mortgage-backed securities 2,918 175,212 — — 2,918 Collateralized mortgage obligations 628 51,466 349 11,381 977 Total $ 3,859 $ 258,414 $ 1,139 $ 17,955 $ 4,998 Number of securities in an unrealized loss position: 104 9 113 As of September 30, 2017 and December 31, 2016 , we conducted an analysis to determine whether any AFS securities currently in an unrealized loss position should be other-than-temporarily impaired. Such analyses considered, among other factors, the following criteria: • Has the value of the investment declined more than what is deemed to be reasonable based on a risk and maturity adjusted discount rate? • Is the investment credit rating below investment grade? • Is it probable the issuer will be unable to pay the amount when due? • Is it more likely than not that we will have to sell the security before recovery of its cost basis? • Has the duration of the investment been extended? During the fourth quarter of 2016, we identified one municipal bond as other-than-temporarily impaired. While management estimated the OTTI to be realized, we also engaged the services of an independent investment valuation firm to estimate the amount of impairment as of December 31, 2016 . The valuation calculated the estimated market value utilizing two different approaches: 1) Market - Appraisal and Comparable Investments 2) Income - Discounted Cash Flow Method The two methods were then weighted, with a higher weighting applied to the Market approach, to determine the estimated impairment. As a result of this analysis, we recognized an OTTI of $770 in earnings for the year ended December 31, 2016. Based on analysis of this bond, there was no additional OTTI recognized as of September 30, 2017 . Based on our analysis which included the criteria outlined above, the fact that we have asserted that we do not have the intent to sell AFS securities in an unrealized loss position, and considering it is unlikely that we will have to sell any AFS securities in an unrealized loss position before recovery of their cost basis, we do not believe that the values of any other AFS securities are other-than-temporarily impaired as of September 30, 2017 or December 31, 2016 , with the exception of the one municipal bond discussed above.

Loans and ALLL

Loans and ALLL	9 Months Ended
	Sep. 30, 2017
Receivables [Abstract]
Loans and ALLL	Loans and ALLL We grant commercial, agricultural, residential real estate, and consumer loans to customers situated primarily in Clare, Gratiot, Isabella, Mecosta, Midland, Montcalm, and Saginaw counties in Michigan. The ability of the borrowers to honor their repayment obligations is often dependent upon the real estate, agricultural, manufacturing, retail, gaming, tourism, higher education, and general economic conditions of this region. Substantially all of our consumer and residential real estate loans are secured by various items of property, while commercial loans are secured primarily by real estate, business assets, and personal guarantees. A portion of loans are unsecured. Loans that we have the intent and ability to hold in our portfolio are reported at their outstanding principal balance adjusted for any charge-offs , the ALLL , and any deferred fees or costs. Interest income is accrued over the term of the loan based on the principal amount outstanding. Loan origination fees and certain direct loan origination costs are capitalized and recognized as a component of interest income over the term of the loan using the level yield method. The accrual of interest on commercial, agricultural, and residential real estate loans is discontinued at the time the loan is 90 days or more past due unless the credit is well-secured and in the process of collection. Upon transferring the loans to nonaccrual status, we perform an evaluation to determine the net realizable value of the underlying collateral. This evaluation is used to help determine if any charge-offs are necessary. Consumer loans are typically charged-off no later than 180 days past due. Past due status is based on contractual terms of the loan. In all cases, loans are placed on nonaccrual status or charged-off at an earlier date if collection of principal or interest is considered doubtful. For loans that are placed on nonaccrual status or charged-off , all interest accrued in the current calendar year, but not collected, is reversed against interest income while interest accrued in prior calendar years, but not collected, is charged against the ALLL . Loans may be returned to accrual status after six months of continuous performance and achievement of current payment status. Commercial and agricultural loans include loans for commercial real estate, commercial operating loans, advances to mortgage brokers, farmland and agricultural production, and states and political subdivisions. Repayment of these loans is dependent upon the successful operation and management of a business. We minimize our risk by limiting the amount of direct credit exposure to any one borrower to $15,000 . Borrowers with direct credit needs of more than $15,000 are serviced through the use of loan participations with other commercial banks. Commercial and agricultural real estate loans commonly require loan-to-value limits of 80% or less. Depending upon the type of loan, past credit history, and current operating results, we may require the borrower to pledge accounts receivable, inventory, and property and equipment. Personal guarantees are generally required from the owners of closely held corporations, partnerships, and sole proprietorships. In addition, we require annual financial statements, prepare cash flow analyses, and review credit reports. We entered into a mortgage purchase program in 2016 with a financial institution where we participate in advances to mortgage brokers ("advances"). The mortgage brokers originate residential mortgage loans with the intent to sell them on the secondary market. We participate in the advance to the mortgage broker, which is secured by the underlying mortgage loan, until it is ultimately sold on the secondary market. As such, the average life of each participated advance is approximately 20 - 30 days. Funds from the sale of the loan are used to payoff our participation in the advance to the mortgage broker. We classify these advances as commercial loans and include the outstanding balance in commercial loans on our balance sheet. Under the participation agreement, we committed to a maximum outstanding aggregate amount of $30,000 . The difference between our outstanding balances and the maximum outstanding aggregate amount is classified as “ Unfunded commitments under lines of credit ” in the “ Contractual Obligations and Loan Commitments ” section of the Management's Discussion and Analysis of Financial Condition and Results of Operations of this report. We offer adjustable rate mortgages, construction loans, and fixed rate residential real estate loans which have amortization periods up to a maximum of 30 years. We consider the anticipated direction of interest rates, balance sheet duration, the sensitivity of our balance sheet to changes in interest rates, and overall loan demand to determine whether or not to sell fixed rate loans to Freddie Mac . Our lending policies generally limit the maximum loan-to-value ratio on residential real estate loans to 100% of the lower of the appraised value of the property or the purchase price. Private mortgage insurance is typically required on loans with loan-to-value ratios in excess of 80% unless the loan qualifies for government guarantees. Underwriting criteria for originated residential real estate loans generally include: • Evaluation of the borrower’s ability to make monthly payments. • Evaluation of the value of the property securing the loan. • Ensuring the payment of principal, interest, taxes, and hazard insurance does not exceed 28% of a borrower’s gross income. • Ensuring all debt servicing does not exceed 40% of income. • Verification of acceptable credit reports. • Verification of employment, income, and financial information. Appraisals are performed by independent appraisers and reviewed for appropriateness. All originated mortgage loan requests are reviewed by our mortgage loan committee or through a secondary market underwriting system; loans in excess of $500 require the approval of our Internal Loan Committee, the Executive Loan Committee, the Board of Directors’ Loan Committee, or the Board of Directors. Consumer loans include secured and unsecured personal loans. Loans are amortized for a period of up to 12 years based on the age and value of the underlying collateral. The underwriting emphasis is on a borrower’s perceived intent and ability to pay rather than collateral value. No consumer loans are sold to the secondary market. The ALLL is established as losses are estimated to have occurred through a provision for loan losses charged to earnings. Loan losses are charged against the ALLL when we believe the uncollectability of the loan balance is confirmed. Subsequent recoveries, if any, are credited to the ALLL . The appropriateness of the ALLL is evaluated on a quarterly basis and is based upon a periodic review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral, and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. The primary factors behind the determination of the level of the ALLL are specific allocations for impaired loans, historical loss percentages, as well as unallocated components. Specific allocations for impaired loans are primarily determined based on the difference between the loan’s outstanding balance and the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral, less cost to sell. Historical loss allocations are calculated at the loan class and segment levels based on a migration analysis of the loan portfolio, with the exception of advances to mortgage brokers, over the preceding five years. With no historical losses on advances to mortgage brokers, there is no allocation in the commercial segment displayed in the following tables based on historical loss factors. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the methodologies for estimating specific and general losses in the portfolio. A summary of changes in the ALLL and the recorded investment in loans by segments follows: Allowance for Loan Losses Three Months Ended September 30, 2017 Commercial Agricultural Residential Real Estate Consumer Unallocated Total July 1, 2017 $ 1,978 $ 475 $ 2,598 $ 583 $ 1,966 $ 7,600 Charge-offs (8 ) — (77 ) (72 ) — (157 ) Recoveries 134 — 41 33 — 208 Provision for loan losses 65 (40 ) (71 ) 89 6 49 September 30, 2017 $ 2,169 $ 435 $ 2,491 $ 633 $ 1,972 $ 7,700 Allowance for Loan Losses Nine Months Ended September 30, 2017 Commercial Agricultural Residential Real Estate Consumer Unallocated Total January 1, 2017 $ 1,814 $ 884 $ 2,664 $ 624 $ 1,414 $ 7,400 Charge-offs (60 ) — (120 ) (190 ) — (370 ) Recoveries 322 — 140 123 — 585 Provision for loan losses 93 (449 ) (193 ) 76 558 85 September 30, 2017 $ 2,169 $ 435 $ 2,491 $ 633 $ 1,972 $ 7,700 Allowance for Loan Losses and Recorded Investment in Loans September 30, 2017 Commercial Agricultural Residential Real Estate Consumer Unallocated Total ALLL Individually evaluated for impairment $ 933 $ — $ 1,618 $ — $ — $ 2,551 Collectively evaluated for impairment 1,236 435 873 633 1,972 5,149 Total $ 2,169 $ 435 $ 2,491 $ 633 $ 1,972 $ 7,700 Loans Individually evaluated for impairment $ 8,525 $ 10,976 $ 8,426 $ 18 $ 27,945 Collectively evaluated for impairment 611,610 122,022 263,054 52,913 1,049,599 Total $ 620,135 $ 132,998 $ 271,480 $ 52,931 $ 1,077,544 Allowance for Loan Losses Three Months Ended September 30, 2016 Commercial Agricultural Residential Real Estate Consumer Unallocated Total July 1, 2016 $ 2,119 $ 534 $ 3,130 $ 541 $ 1,276 $ 7,600 Charge-offs — — (57 ) (74 ) — (131 ) Recoveries 118 — 153 43 — 314 Provision for loan losses (367 ) 612 (452 ) 94 130 17 September 30, 2016 $ 1,870 $ 1,146 $ 2,774 $ 604 $ 1,406 $ 7,800 Allowance for Loan Losses Nine Months Ended September 30, 2016 Commercial Agricultural Residential Real Estate Consumer Unallocated Total January 1, 2016 $ 2,171 $ 329 $ 3,330 $ 522 $ 1,048 $ 7,400 Charge-offs (48 ) — (426 ) (206 ) — (680 ) Recoveries 396 92 248 159 — 895 Provision for loan losses (649 ) 725 (378 ) 129 358 185 September 30, 2016 $ 1,870 $ 1,146 $ 2,774 $ 604 $ 1,406 $ 7,800 Allowance for Loan Losses and Recorded Investment in Loans December 31, 2016 Commercial Agricultural Residential Real Estate Consumer Unallocated Total ALLL Individually evaluated for impairment $ 741 $ 1 $ 1,629 $ — $ — $ 2,371 Collectively evaluated for impairment 1,073 883 1,035 624 1,414 5,029 Total $ 1,814 $ 884 $ 2,664 $ 624 $ 1,414 $ 7,400 Loans Individually evaluated for impairment $ 7,859 $ 5,545 $ 8,638 $ 26 $ 22,068 Collectively evaluated for impairment 567,805 120,947 257,412 42,383 988,547 Total $ 575,664 $ 126,492 $ 266,050 $ 42,409 $ 1,010,615 The following table displays the credit quality indicators for commercial and agricultural credit exposures based on internally assigned credit risk ratings as of: September 30, 2017 Commercial Agricultural Real Estate Other Advances to Mortgage Brokers Total Real Estate Other Total Total Rating 1 - Excellent $ 25 $ 227 $ — $ 252 $ — $ — $ — $ 252 2 - High quality 6,736 10,474 — 17,210 3,088 1,001 4,089 21,299 3 - High satisfactory 117,596 41,844 22,834 182,274 21,743 9,822 31,565 213,839 4 - Low satisfactory 327,648 77,519 — 405,167 48,902 21,363 70,265 475,432 5 - Special mention 4,402 1,912 — 6,314 11,206 9,115 20,321 26,635 6 - Substandard 6,303 2,402 — 8,705 3,861 1,912 5,773 14,478 7 - Vulnerable 210 3 — 213 488 497 985 1,198 8 - Doubtful — — — — — — — — Total $ 462,920 $ 134,381 $ 22,834 $ 620,135 $ 89,288 $ 43,710 $ 132,998 $ 753,133 December 31, 2016 Commercial Agricultural Real Estate Other Advances to Mortgage Brokers Total Real Estate Other Total Total Rating 1 - Excellent $ 28 $ 438 $ — $ 466 $ — $ — $ — $ 466 2 - High quality 11,821 12,091 19,688 43,600 3,566 1,426 4,992 48,592 3 - High satisfactory 103,529 41,982 — 145,511 21,657 11,388 33,045 178,556 4 - Low satisfactory 299,317 74,432 — 373,749 48,955 22,715 71,670 445,419 5 - Special mention 3,781 1,178 — 4,959 6,009 3,085 9,094 14,053 6 - Substandard 5,901 1,474 — 7,375 3,650 3,508 7,158 14,533 7 - Vulnerable 4 — — 4 — 533 533 537 8 - Doubtful — — — — — — — — Total $ 424,381 $ 131,595 $ 19,688 $ 575,664 $ 83,837 $ 42,655 $ 126,492 $ 702,156 Internally assigned credit risk ratings are reviewed, at a minimum, when loans are renewed or when management has knowledge of improvements or deterioration of the credit quality of individual credits. Descriptions of the internally assigned credit risk ratings for commercial and agricultural loans are as follows: 1. EXCELLENT – Substantially Risk Free Credit has strong financial condition and solid earnings history, characterized by: • High liquidity, strong cash flow, low leverage. • Unquestioned ability to meet all obligations when due. • Experienced management, with management succession in place. • Secured by cash. 2. HIGH QUALITY – Limited Risk Credit with sound financial condition and a positive trend in earnings supplemented by: • Favorable liquidity and leverage ratios. • Ability to meet all obligations when due. • Management with successful track record. • Steady and satisfactory earnings history. • If loan is secured, collateral is of high quality and readily marketable. • Access to alternative financing. • Well defined primary and secondary source of repayment. • If supported by guaranty, the financial strength and liquidity of the guarantor(s) are clearly evident. 3. HIGH SATISFACTORY – Reasonable Risk Credit with satisfactory financial condition and further characterized by: • Working capital adequate to support operations. • Cash flow sufficient to pay debts as scheduled. • Management experience and depth appear favorable. • Loan performing according to terms. • If loan is secured, collateral is acceptable and loan is fully protected. 4. LOW SATISFACTORY – Acceptable Risk Credit with bankable risks, although some signs of weaknesses are shown: • Would include most start-up businesses. • Occasional instances of trade slowness or repayment delinquency – may have been 10 - 30 days slow within the past year. • Management’s abilities are apparent, yet unproven. • Weakness in primary source of repayment with adequate secondary source of repayment. • Loan structure generally in accordance with policy. • If secured, loan collateral coverage is marginal. • Adequate cash flow to service debt, but coverage is low. To be classified as less than satisfactory, only one of the following criteria must be met. 5. SPECIAL MENTION – Criticized Credit constitutes an undue and unwarranted credit risk but not to the point of justifying a classification of substandard. The credit risk may be relatively minor yet constitute an unwarranted risk in light of the circumstances surrounding a specific loan: • Downward trend in sales, profit levels, and margins. • Impaired working capital position. • Cash flow is strained in order to meet debt repayment. • Loan delinquency ( 30 - 60 days) and overdrafts may occur. • Shrinking equity cushion. • Diminishing primary source of repayment and questionable secondary source. • Management abilities are questionable. • Weak industry conditions. • Litigation pending against the borrower. • Collateral or guaranty offers limited protection. • Negative debt service coverage, however the credit is well collateralized and payments are current. 6. SUBSTANDARD – Classified Credit where the borrower’s current net worth, paying capacity, and value of the collateral pledged is inadequate. There is a distinct possibility that we will implement collection procedures if the loan deficiencies are not corrected. In addition, the following characteristics may apply: • Sustained losses have severely eroded the equity and cash flow. • Deteriorating liquidity. • Serious management problems or internal fraud. • Original repayment terms liberalized. • Likelihood of bankruptcy. • Inability to access other funding sources. • Reliance on secondary source of repayment. • Litigation filed against borrower. • Collateral provides little or no value. • Requires excessive attention of the loan officer. • Borrower is uncooperative with loan officer. 7. VULNERABLE – Classified Credit is considered “Substandard” and warrants placing on nonaccrual status. Risk of loss is being evaluated and exit strategy options are under review. Other characteristics that may apply: • Insufficient cash flow to service debt. • Minimal or no payments being received. • Limited options available to avoid the collection process. • Transition status, expect action will take place to collect loan without immediate progress being made. 8. DOUBTFUL – Workout Credit has all the weaknesses inherent in a “Substandard” loan with the added characteristic that collection and/or liquidation is pending. The possibility of a loss is extremely high, but its classification as a loss is deferred until liquidation procedures are completed, or reasonably estimable. Other characteristics that may apply: • Normal operations are severely diminished or have ceased. • Seriously impaired cash flow. • Original repayment terms materially altered. • Secondary source of repayment is inadequate. • Survivability as a “going concern” is impossible. • Collection process has begun. • Bankruptcy petition has been filed. • Judgments have been filed. • Portion of the loan balance has been charged-off . Our primary credit quality indicator for residential real estate and consumer loans is the individual loan’s past due aging. The following tables summarize the past due and current loans as of: September 30, 2017 Accruing Interest Total Past Due and Nonaccrual 30-59 60-89 90 Days Nonaccrual Current Total Commercial Commercial real estate $ 466 $ — $ — $ 211 $ 677 $ 462,243 $ 462,920 Commercial other 823 29 — 3 855 133,526 134,381 Advances to mortgage brokers — — — — — 22,834 22,834 Total commercial 1,289 29 — 214 1,532 618,603 620,135 Agricultural Agricultural real estate — — 590 488 1,078 88,210 89,288 Agricultural other 490 3 — 497 990 42,720 43,710 Total agricultural 490 3 590 985 2,068 130,930 132,998 Residential real estate Senior liens 1,514 — 56 383 1,953 225,215 227,168 Junior liens 8 — — 23 31 7,348 7,379 Home equity lines of credit 217 — — — 217 36,716 36,933 Total residential real estate 1,739 — 56 406 2,201 269,279 271,480 Consumer Secured 39 11 — — 50 49,027 49,077 Unsecured 2 — — — 2 3,852 3,854 Total consumer 41 11 — — 52 52,879 52,931 Total $ 3,559 $ 43 $ 646 $ 1,605 $ 5,853 $ 1,071,691 $ 1,077,544 December 31, 2016 Accruing Interest Total Past Due and Nonaccrual 30-59 60-89 90 Days Nonaccrual Current Total Commercial Commercial real estate $ 1,580 $ — $ 35 $ 4 $ 1,619 $ 422,762 $ 424,381 Commercial other 1,693 35 — — 1,728 129,867 131,595 Advances to mortgage brokers — — — — — 19,688 19,688 Total commercial 3,273 35 35 4 3,347 572,317 575,664 Agricultural Agricultural real estate 191 — 508 — 699 83,138 83,837 Agricultural other 19 — — 533 552 42,103 42,655 Total agricultural 210 — 508 533 1,251 125,241 126,492 Residential real estate Senior liens 1,638 174 22 498 2,332 216,681 219,013 Junior liens 15 — — 25 40 8,317 8,357 Home equity lines of credit 270 6 68 — 344 38,336 38,680 Total residential real estate 1,923 180 90 523 2,716 263,334 266,050 Consumer Secured 110 — — — 110 38,582 38,692 Unsecured 5 — — — 5 3,712 3,717 Total consumer 115 — — — 115 42,294 42,409 Total $ 5,521 $ 215 $ 633 $ 1,060 $ 7,429 $ 1,003,186 $ 1,010,615 Impaired Loans Loans may be classified as impaired if they meet one or more of the following criteria: 1. There has been a charge-off of its principal balance (in whole or in part); 2. The loan has been classified as a TDR ; or 3. The loan is in nonaccrual status. Impairment is measured on a loan-by-loan basis for commercial and agricultural loans by comparing the loan’s outstanding balance to the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral, less cost to sell, if the loan is collateral dependent. Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Impairment is measured on a loan-by-loan basis for residential real estate and consumer loans by comparing the loan’s unpaid principal balance to the present value of expected future cash flows discounted at the loan’s effective interest rate. We do not recognize interest income on impaired loans in nonaccrual status. For impaired loans not classified as nonaccrual , interest income is recognized daily, as earned, according to the terms of the loan agreement and the principal amount outstanding. The following is a summary of information pertaining to impaired loans as of: September 30, 2017 December 31, 2016 Recorded Balance Unpaid Principal Balance Valuation Allowance Recorded Balance Unpaid Principal Balance Valuation Allowance Impaired loans with a valuation allowance Commercial real estate $ 4,209 $ 4,328 $ 766 $ 5,811 $ 5,992 $ 716 Commercial other 2,239 2,239 167 1,358 1,358 25 Agricultural real estate — — — — — — Agricultural other — — — 134 134 1 Residential real estate senior liens 8,273 8,903 1,605 8,464 9,049 1,615 Residential real estate junior liens 70 70 13 72 82 14 Home equity lines of credit — — — — — — Consumer secured — — — — — — Total impaired loans with a valuation allowance 14,791 15,540 2,551 15,839 16,615 2,371 Impaired loans without a valuation allowance Commercial real estate 1,988 2,062 604 617 Commercial other 89 89 86 97 Agricultural real estate 7,834 7,834 4,037 4,037 Agricultural other 3,142 3,142 1,374 1,374 Home equity lines of credit 83 383 102 402 Consumer secured 18 18 26 26 Total impaired loans without a valuation allowance 13,154 13,528 6,229 6,553 Impaired loans Commercial 8,525 8,718 933 7,859 8,064 741 Agricultural 10,976 10,976 — 5,545 5,545 1 Residential real estate 8,426 9,356 1,618 8,638 9,533 1,629 Consumer 18 18 — 26 26 — Total impaired loans $ 27,945 $ 29,068 $ 2,551 $ 22,068 $ 23,168 $ 2,371 The following is a summary of information pertaining to impaired loans for the: Three Months Ended September 30 2017 2016 Average Recorded Balance Interest Income Recognized Average Recorded Balance Interest Income Recognized Impaired loans with a valuation allowance Commercial real estate $ 4,636 $ 68 $ 5,699 $ 90 Commercial other 1,669 28 746 2 Agricultural real estate — — 181 4 Agricultural other — — 67 1 Residential real estate senior liens 8,333 79 8,896 85 Residential real estate junior liens 73 1 105 — Home equity lines of credit 35 — — — Consumer secured — — — — Total impaired loans with a valuation allowance 14,746 176 15,694 182 Impaired loans without a valuation allowance Commercial real estate 1,546 31 705 10 Commercial other 93 2 67 2 Agricultural real estate 7,830 98 3,360 42 Agricultural other 3,221 39 767 11 Home equity lines of credit 86 5 112 4 Consumer secured 19 — 31 1 Total impaired loans without a valuation allowance 12,795 175 5,042 70 Impaired loans Commercial 7,944 129 7,217 104 Agricultural 11,051 137 4,375 58 Residential real estate 8,527 85 9,113 89 Consumer 19 — 31 1 Total impaired loans $ 27,541 $ 351 $ 20,736 $ 252 Nine Months Ended September 30 2017 2016 Average Recorded Balance Interest Income Recognized Average Recorded Balance Interest Income Recognized Impaired loans with a valuation allowance Commercial real estate $ 4,765 $ 225 $ 5,748 $ 259 Commercial other 1,363 75 298 5 Agricultural real estate — — 91 6 Agricultural other 22 — 78 1 Residential real estate senior liens 8,379 245 9,439 278 Residential real estate junior liens 75 2 126 2 Home equity lines of credit 23 — — — Consumer secured — — — — Total impaired loans with a valuation allowance 14,627 547 15,780 551 Impaired loans without a valuation allowance Commercial real estate 1,483 83 995 57 Commercial other 109 6 92 6 Agricultural real estate 5,936 218 3,454 130 Agricultural other 2,353 85 574 27 Home equity lines of credit 115 15 118 12 Consumer secured 22 — 33 3 Total impaired loans without a valuation allowance 10,018 407 5,266 235 Impaired loans Commercial 7,720 389 7,133 327 Agricultural 8,311 303 4,197 164 Residential real estate 8,592 262 9,683 292 Consumer 22 — 33 3 Total impaired loans $ 24,645 $ 954 $ 21,046 $ 786 We had committed to advance $125 and $117 in connection with impaired loans, which includes TDRs , as of September 30, 2017 and December 31, 2016 , respectively. Troubled Debt Restructurings Loan modifications are considered to be TDRs when the modification includes terms outside of normal lending practices to a borrower who is experiencing financial difficulties. Typical concessions granted include, but are not limited to: • Agreeing to interest rates below prevailing market rates for debt with similar risk characteristics. • Extending the amortization period beyond typical lending guidelines for loans with similar risk characteristics. • Agreeing to an interest only payment structure and delaying principal payments. • Forgiving principal. • Forgiving accrued interest. To determine if a borrower is experiencing financial difficulties, factors we consider include: • The borrower is currently in default on any of their debt. • The borrower would likely default on any of their debt if the concession was not granted. • The borrower’s cash flow was insufficient to service all of their debt if the concession was not granted. • The borrower has declared, or is in the process of declaring, bankruptcy. • The borrower is unlikely to continue as a going concern (if the entity is a business). The following is a summary of information pertaining to TDRs granted for the: Three Months Ended September 30 2017 2016 Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment Commercial other 3 $ 1,385 $ 1,385 1 $ 1,315 $ 1,315 Agricultural other — — — 2 319 319 Residential real estate Senior liens 2 179 179 — — — Junior liens — — — — — — Total residential real estate 2 179 179 — — — Consumer unsecured — — — — — — Total 5 $ 1,564 $ 1,564 3 $ 1,634 $ 1,634 Nine Months Ended September 30 2017 2016 Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment Commercial other 6 $ 1,698 $ 1,698 1 $ 1,315 $ 1,315 Agricultural other 7 5,445 5,445 5 520 520 Residential real estate Senior liens 5 434 434 2 26 26 Junior liens 1 8 8 — — — Total residential real estate 6 442 442 2 26 26 Consumer unsecured — — — 1 2 2 Total 19 $ 7,585 $ 7,585 9 $ 1,863 $ 1,863 The following tables summarize concessions we granted to borrowers in financial difficulty for the: Three Months Ended September 30 2017 2016 Below Market Interest Rate Below Market Interest Rate and Extension of Amortization Period Below Market Interest Rate Below Market Interest Rate and Extension of Amortization Period Number of Loans Pre-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Commercial other — $ — 3 $ 1,385 — $ — 1 $ 1,315 Agricultural other — — — — 1 14 1 305 Residential real estate Senior liens — — 2 179 — — — — Junior liens — — — — — — — — Total residential real estate — — 2 179 — — — — Consumer unsecured — — — — — — — — Total — $ — 5 $ 1,564 1 $ 14 2 $ 1,620 Nine Months Ended September 30 2017 2016 Below Market Interest Rate Below Market Interest Rate and Extension of Amortization Period Below Market Interest Rate Below Market Interest Rate and Extension of Amortization Period Number of Loans Pre-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Commercial other — $ — 6 $ 1,698 — $ — 1 $ 1,315 Agricultural other 4 1,349 3 4,096 1 14 4 506 Residential real estate Senior liens — — 5 434 2 26 — — Junior liens 1 8 — — — — — — Total residential real estate 1 8 5 434 2 26 — — Consumer unsecured — — — — — — 1 2 Total 5 $ 1,357 14 $ 6,228 3 $ 40 6 $ 1,823 We did not restructure any loans by forgiving principal or accrued interest in the three and nine month periods ended September 30, 2017 or 2016 . Based on our historical loss experience, losses associated with TDRs are not significantly different than other impaired loans within the same loan segment. As such, TDRs , including TDRs that have been modified in the past 12 months that subsequently defaulted, are analyzed in the same manner as other impaired loans within their respective loan segment. We had no loans that defaulted in the three and nine month periods ended September 30, 2017 and September 30, 2016 which were modified within 12 months prior to the default date. The following is a summary of TDR loan balances as of: September 30, 2017 December 31, 2016 TDRs $ 27,259 $ 21,382

Equity Securities Without Readi

Equity Securities Without Readily Determinable Fair Values	9 Months Ended
	Sep. 30, 2017
Equity Method And Other Investments [Abstract]
Equity Securities Without Readily Determinable Fair Values	Equity Securities Without Readily Determinable Fair Values Included in equity securities without readily determinable fair values are restricted securities, which are carried at cost, and investments in unconsolidated entities accounted for under the equity method of accounting. Equity securities without readily determinable fair values consist of the following as of: September 30 December 31 FHLB Stock $ 13,700 $ 11,900 Corporate Settlement Solutions, LLC 7,428 7,461 FRB Stock 1,999 1,999 Other 334 334 Total $ 23,461 $ 21,694

Foreclosed Assets (Notes)

Foreclosed Assets (Notes)	9 Months Ended
	Sep. 30, 2017
Banking and Thrift [Abstract]
Foreclosed Assets	Foreclosed Assets Foreclosed assets are included in other assets in the consolidated balance sheets and consist of other real estate owned and repossessed assets. The following is a summary of foreclosed assets as of: September 30 December 31 Consumer mortgage loans collateralized by residential real estate foreclosed as a result of obtaining physical possession $ 20 $ 18 All other foreclosed assets 220 213 Total $ 240 $ 231 There were $260 and $18 of consumer mortgage loans collateralized by residential real estate in the process of foreclosure as of September 30, 2017 and December 31, 2016 . Below is a summary of changes in foreclosed assets during the: Three Months Ended September 30 2017 2016 Balance, July 1 $ 229 $ 249 Properties transferred 118 95 Impairments (2 ) — Proceeds from sale (105 ) (60 ) Balance, Septembe r 30 $ 240 $ 284 Nine Months Ended September 30 2017 2016 Balance, January 1 $ 231 $ 421 Properties transferred 214 211 Impairments (2 ) — Proceeds from sale (203 ) (348 ) Balance, Septembe r 30 $ 240 $ 284

Borrowed Funds

Borrowed Funds	9 Months Ended
	Sep. 30, 2017
Debt Disclosure [Abstract]
Borrowed Funds	Borrowed Funds Borrowed funds consist of the following obligations as of: September 30, 2017 December 31, 2016 Amount Rate Amount Rate FHLB advances $ 310,000 1.83 % $ 270,000 1.82 % Securities sold under agreements to repurchase without stated maturity dates 54,977 0.12 % 60,894 0.13 % Federal funds purchased 2,050 1.39 % 6,800 1.00 % Total $ 367,027 1.57 % $ 337,694 1.50 % FHLB advances are collateralized by a blanket lien on all qualified 1-4 family residential real estate loans, specific AFS securities, and FHLB stock. The following table lists the maturities and weighted average interest rates of FHLB advances as of: September 30, 2017 December 31, 2016 Amount Rate Amount Rate Fixed rate due 2017 $ 40,000 1.13 % $ 70,000 1.39 % Fixed rate due 2018 50,000 2.16 % 50,000 2.16 % Fixed rate due 2019 85,000 1.87 % 60,000 1.99 % Fixed rate due 2020 35,000 1.52 % 10,000 1.98 % Fixed rate due 2021 50,000 1.91 % 50,000 1.91 % Variable rate due 2021 1 10,000 1.61 % 10,000 1.21 % Fixed rate due 2022 20,000 1.97 % — — % Fixed rate due 2023 10,000 3.90 % 10,000 3.90 % Fixed rate due 2026 10,000 1.17 % 10,000 1.17 % Total $ 310,000 1.83 % $ 270,000 1.82 % (1) Hedged advance (see " Derivative Instruments " section below) Securities sold under agreements to repurchase are classified as secured borrowings and are reflected at the amount of cash received in connection with the transaction. The securities underlying the agreements have a carrying value and a fair value of $54,996 and $60,918 at September 30, 2017 and December 31, 2016 , respectively. Such securities remain under our control. We may be required to provide additional collateral based on the fair value of underlying securities. Securities sold under repurchase agreements without stated maturity dates, federal funds purchased, and FRB Discount Window advances generally mature within one to four days from the transaction date. The following table provides a summary of securities sold under repurchase agreements without stated maturity dates, federal funds purchased, and FRB Discount Window advances. Three Months Ended September 30 2017 2016 Maximum Month End Balance Average Balance Weighted Average Interest Rate During the Period Maximum Month End Balance Average Balance Weighted Average Interest Rate During the Period Securities sold under agreements to repurchase without stated maturity dates $ 58,464 $ 53,846 0.13 % $ 56,057 $ 54,446 0.13 % Federal funds purchased 3,815 1,474 1.20 % 20,600 8,848 0.69 % FRB Discount Window — 82 1.60 % — — — % Nine Months Ended September 30 2017 2016 Maximum Month End Balance Average Balance Weighted Average Interest Rate During the Period Maximum Month End Balance Average Balance Weighted Average Interest Rate During the Period Securities sold under agreements to repurchase without stated maturity dates $ 58,464 $ 55,051 0.13 % $ 61,783 $ 57,159 0.13 % Federal funds purchased 5,965 3,280 1.13 % 20,600 8,614 0.69 % FRB Discount Window — 57 1.54 % — — — % We had pledged AFS securities and 1-4 family residential real estate loans in the following amounts at: September 30 December 31 Pledged to secure borrowed funds $ 416,279 $ 363,427 Pledged to secure repurchase agreements 54,996 60,918 Pledged for public deposits and for other purposes necessary or required by law 29,774 33,916 Total $ 501,049 $ 458,261 AFS securities pledged to repurchase agreements without stated maturity dates consisted of the following at: September 30 December 31 States and political subdivisions $ 4,256 $ 5,676 Mortgage-backed securities 15,419 11,383 Collateralized mortgage obligations 35,321 43,859 Total $ 54,996 $ 60,918 AFS securities pledged to repurchase agreements are monitored to ensure the appropriate level is collateralized. In the event of maturities, calls, significant principal repayments, or significant decline in market values, we have adequate levels of AFS securities to pledge to satisfy required collateral. As of September 30, 2017 , we had the ability to borrow up to an additional $114,839 , based on assets pledged as collateral. We had no investment securities that are restricted to be pledged for specific purposes. Derivative Instruments We enter into interest rate swaps to manage exposure to interest rate risk and variability in cash flows. The interest rate swaps, associated with our variable rate borrowings, are designated upon inception as cash flow hedges of forecasted interest payments. We enter into LIBOR-based interest rate swaps that involve the receipt of variable amounts in exchange for fixed rate payments, in effect converting variable rate debt to fixed rate debt. Cash flow hedges are assessed for effectiveness using regression analysis. The effective portion of changes in fair value are recorded in OCI and subsequently reclassified into interest expense in the same period in which the related interest on the variable rate borrowings affects earnings. In the event that a portion of the changes in fair value were determined to be ineffective, the ineffective amount would be recorded in earnings. The following tables provide information on derivatives related to variable rate borrowings as of: September 30, 2017 Pay Rate Receive Rate Remaining Life (Years) Notional Amount Balance Sheet Location Fair Value Derivatives designated as hedging instruments Cash Flow Hedges: Interest rate swaps 1.56 % 3-Month LIBOR 3.6 $ 10,000 Other Assets $ 215 December 31, 2016 Pay Rate Receive Rate Remaining Life (Years) Notional Amount Balance Sheet Location Fair Value Derivatives designated as hedging instruments Cash Flow Hedges: Interest rate swaps 1.56 % 3-Month LIBOR 4.3 $ 10,000 Other Assets $ 248 Derivatives contain an element of credit risk which arises from the possibility that we will incur a loss as a result of a counterparty failing to meet its contractual obligations. Credit risk is minimized through counterparty collateral, transaction limits and monitoring procedures. We also manage dealer credit risk by entering into interest rate derivatives only with primary and highly rated counterparties, the use of ISDA master agreements and counterparties limits. We do not anticipate any losses from failure of interest rate derivative counterparties to honor their obligations.

Other Noninterest Expenses

Other Noninterest Expenses	9 Months Ended
	Sep. 30, 2017
Other Income and Expenses [Abstract]
Other Noninterest Expenses	Other Noninterest Expenses A summary of expenses included in other noninterest expenses is as follows for the: Three Months Ended Nine Months Ended 2017 2016 2017 2016 ATM and debit card fees $ 253 $ 210 $ 873 $ 627 Audit and related fees 322 319 757 664 Consulting fees 259 198 672 567 Director fees 212 207 634 630 Loan underwriting fees 237 142 546 377 Donations and community relations 190 134 488 399 FDIC insurance premiums 172 224 480 646 Marketing costs 172 101 361 359 Education and travel 143 73 332 309 Printing and supplies 110 105 320 325 Postage and freight 85 96 304 293 All other 438 486 1,427 1,692 Total other $ 2,593 $ 2,295 $ 7,194 $ 6,888

Federal Income Taxes

Federal Income Taxes	9 Months Ended
	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Federal Income Taxes	Federal Income Taxes The reconciliation of the provision for federal income taxes and the amount computed at the federal statutory tax rate of 34% of income before federal income tax expense is as follows for the: Three Months Ended Nine Months Ended 2017 2016 2017 2016 Income taxes at 34% statutory rate $ 1,458 $ 1,481 $ 4,317 $ 4,036 Effect of nontaxable income Interest income on tax exempt municipal securities (452 ) (457 ) (1,361 ) (1,400 ) Earnings on corporate owned life insurance policies (60 ) (62 ) (183 ) (192 ) Effect of tax credits (186 ) (188 ) (566 ) (575 ) Other (18 ) (19 ) (54 ) (55 ) Total effect of nontaxable income (716 ) (726 ) (2,164 ) (2,222 ) Effect of nondeductible expenses 8 8 27 41 Federal income tax expense $ 750 $ 763 $ 2,180 $ 1,855

Fair Value

Fair Value	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value	Fair Value Following is a description of the valuation methodologies, key inputs, and an indication of the level of the fair value hierarchy in which the assets or liabilities are classified. Cash and cash equivalents : The carrying amounts of cash and demand deposits due from banks and interest bearing balances due from banks approximate fair values. As such, we classify cash and cash equivalents as Level 1. AFS securities : AFS securities are recorded at fair value on a recurring basis. Level 1 fair value measurement is based upon quoted prices for identical instruments. Level 2 fair value measurement is based upon quoted prices for similar instruments. If quoted prices are not available, fair values are measured using independent pricing models or other model based valuation techniques such as the present value of future cash flows, adjusted for the security’s credit rating, prepayment assumptions and other factors such as credit loss and liquidity assumptions. The values for Level 1 and Level 2 investment securities are generally obtained from an independent third party. On a quarterly basis, we compare the values provided to alternative pricing sources. Mortgage loans AFS : Mortgage loans AFS are carried at the lower of cost or fair value. The fair value of mortgage loans AFS are based on the price secondary markets are currently offering for portfolios with similar characteristics. As such, we classify mortgage loans AFS subject to nonrecurring fair value adjustments as Level 2. Loans : For variable rate loans with no significant change in credit risk, fair values are based on carrying values. Fair values for fixed rate loans are estimated using discounted cash flow analyses, using interest rates currently being offered for loans with similar terms to borrowers of similar credit quality. The resulting amounts are adjusted to estimate the effect of changes in the credit quality of borrowers since the loans were originated. As such, we classify loans as Level 3 assets. We do not record loans at fair value on a recurring basis. However, from time-to-time , loans are classified as impaired and a specific allowance for loan losses may be established. Loans for which it is probable that payment of interest and principal will be significantly different than the contractual terms of the original loan agreement are considered impaired. Once a loan is identified as impaired, we measure the estimated impairment. The fair value of impaired loans is estimated using one of several methods, including the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral, less costs to sell, if the loan is collateral dependent. Those impaired loans not requiring an allowance represent loans for which the fair value of the expected repayments or collateral exceed the recorded investments in such loans. We review the net realizable values of the underlying collateral for collateral dependent impaired loans on at least a quarterly basis for all loan types. To determine the collateral value, we utilize independent appraisals, broker price opinions, or internal evaluations. We review these valuations to determine whether an additional discount should be applied given the age of market information that may have been considered as well as other factors such as costs to sell an asset if it is determined that the collateral will be liquidated in connection with the ultimate settlement of the loan. We use these valuations to determine if any specific reserves or charge-offs are necessary. We may obtain new valuations in certain circumstances, including when there has been significant deterioration in the condition of the collateral, if the foreclosure process has begun, or if the existing valuation is deemed to be outdated. The following tables list the quantitative fair value information about impaired loans as of: September 30, 2017 Valuation Technique Fair Value Unobservable Input Range Discount applied to collateral: Real Estate 20% - 30% Equipment 20% - 45% Accounts receivable 50% Discounted value $16,158 Cash crop inventory 30% - 40% Other inventory 50% - 75% Liquor license 75% Furniture, fixtures & equipment 35% - 45% December 31, 2016 Valuation Technique Fair Value Unobservable Input Range Discount applied to collateral: Real Estate 20% - 30% Equipment 20% - 45% Discounted value $9,166 Cash crop inventory 30% - 40% Liquor license 75% Furniture, fixtures & equipment 45% Collateral discount rates may have ranges to accommodate differences in the age of the independent appraisal, broker price opinion, or internal evaluation. Accrued interest receivable : The carrying amounts of accrued interest receivable approximate fair value. As such, we classify accrued interest receivable as Level 1. Equity securities without readily determinable fair values : Included in equity securities without readily determinable fair values are FHLB stock and FRB stock as well as our minority ownership interest in Corporate Settlement Solutions, LLC . The investment in Corporate Settlement Solutions, LLC , a title insurance agency, was made in the first quarter 2008 and we account for our investment under the equity method of accounting. The lack of an active market, or other independent sources to validate fair value estimates coupled with the impact of future capital calls and transfer restrictions, is an inherent limitation in the valuation process. As the fair values of these investments are not readily determinable, they are not disclosed under a specific fair value hierarchy; however, they are reviewed quarterly for impairment. If we were to record an impairment adjustment related to these securities, it would be classified as a nonrecurring Level 3 fair value adjustment. During 2017 and 2016 , there were no impairments recorded on equity securities without readily determinable fair values. Foreclosed assets : Upon transfer from the loan portfolio, foreclosed assets (which are included in other assets) are adjusted to and subsequently carried at the lower of carrying value or fair value less costs to sell. Net realizable value is based upon independent market prices, appraised values of the collateral, or management’s estimation of the value of the collateral. Due to the inherent level of estimation in the valuation process, we classify foreclosed assets as nonrecurring Level 3. The table below lists the quantitative fair value information related to foreclosed assets as of: September 30, 2017 Valuation Technique Fair Value Unobservable Input Range Discount applied to collateral: Discounted value $ 240 Real Estate 20% - 30% December 31, 2016 Valuation Technique Fair Value Unobservable Input Range Discount applied to collateral: Discounted value $ 231 Real Estate 20% - 30% Collateral discount rates may have ranges to accommodate differences in the age of the independent appraisal, broker price opinion, or internal evaluations. Goodwill and other intangible assets : Acquisition intangibles and goodwill are evaluated for potential impairment on at least an annual basis. Acquisition intangibles and goodwill are typically qualitatively evaluated to determine if it is more likely than not that the carrying balance is impaired. If it is determined that the carrying balance of acquisition intangibles or goodwill is more likely than not to be impaired, we perform a cash flow valuation to determine the extent of the potential impairment. If the testing resulted in impairment, we would classify goodwill and other acquisition intangibles subjected to nonrecurring fair value adjustments as Level 3. During 2017 and 2016 , there were no impairments recorded on goodwill and other acquisition intangibles. OMSR : OMSR (which are included in other assets) are subject to impairment testing. To test for impairment, we utilize a discounted cash flow analysis using interest rates and prepayment speed assumptions currently quoted for comparable instruments and discount rates. If the valuation model reflects a value less than the carrying value, OMSR are adjusted to fair value through a valuation allowance as determined by the model. As such, we classify OMSR subject to nonrecurring fair value adjustments as Level 2. Deposits : The fair value of demand, savings, and money market deposits are equal to their carrying amounts and are classified as Level 1. Fair values for variable rate certificates of deposit approximate their carrying value. Fair values for fixed rate certificates of deposit are estimated using a discounted cash flow calculation that applies interest rates currently being offered on certificates to a schedule of aggregated expected monthly maturities on time deposits. As such, fixed rate certificates of deposit are classified as Level 2. Borrowed funds : The carrying amounts of federal funds purchased, borrowings under overnight repurchase agreements, and other short-term borrowings maturing within ninety days approximate their fair values. The fair values of other borrowed funds are estimated using discounted cash flow analyses based on current incremental borrowing arrangements. As such, borrowed funds are classified as Level 2. Accrued interest payable: The carrying amounts of accrued interest payable approximate fair value. As such, we classify accrued interest payable as Level 1. Derivative instruments: Derivative instruments, consisting solely of interest rate swaps, are recorded at fair value on a recurring basis. Derivatives qualifying as cash flow hedges, when highly effective, are reported at fair value in other assets or other liabilities on our Consolidated Balance Sheets with changes in value recorded in OCI. Should the hedge no longer be considered effective, the ineffective portion of the change in fair value is recorded directly in earnings in the period in which the change occurs. The fair value of a derivative is determined by quoted market prices and model based valuation techniques. As such, we classify derivative instruments as Level 2. Commitments to extend credit, standby letters of credit, and undisbursed loans: Our commitments to extend credit, standby letters of credit, and undisbursed funds have no carrying amount and are estimated to have no realizable fair value. Historically, a majority of the unused commitments to extend credit have not been drawn upon and, generally, we do not receive fees in connection with these commitments other than standby letter of credit fees, which are not significant. The preceding methods described may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Although we believe our valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement. Estimated Fair Values of Financial Instruments Not Recorded at Fair Value in their Entirety on a Recurring Basis Disclosure of the estimated fair values of financial instruments, which differ from carrying values, often requires the use of estimates. In cases where quoted market values in an active market are not available, we use present value techniques and other valuation methods to estimate the fair values of our financial instruments. These valuation methods require considerable judgment and the resulting estimates of fair value can be significantly affected by the assumptions made and methods used. The carrying amount and estimated fair value of financial instruments not recorded at fair value in their entirety on a recurring basis were as follows as of: September 30, 2017 Carrying Estimated Level 1 Level 2 Level 3 ASSETS Cash and cash equivalents $ 21,067 $ 21,067 $ 21,067 $ — $ — Mortgage loans AFS 1,237 1,245 — 1,245 — Gross loans 1,077,544 1,056,912 — — 1,056,912 Less allowance for loan and lease losses 7,700 7,700 — — 7,700 Net loans 1,069,844 1,049,212 — — 1,049,212 Accrued interest receivable 7,388 7,388 7,388 — — Equity securities without readily determinable fair values (1) 23,461 N/A — — — OMSR 2,413 2,413 — 2,413 — LIABILITIES Deposits without stated maturities 791,567 791,567 791,567 — — Deposits with stated maturities 424,495 423,536 — 423,536 — Borrowed funds 367,027 367,873 — 367,873 — Accrued interest payable 633 633 633 — — December 31, 2016 Carrying Estimated Level 1 Level 2 Level 3 ASSETS Cash and cash equivalents $ 22,894 $ 22,894 $ 22,894 $ — $ — Mortgage loans AFS 1,816 1,836 — 1,836 — Gross loans 1,010,615 991,009 — — 991,009 Less allowance for loan and lease losses 7,400 7,400 — — 7,400 Net loans 1,003,215 983,609 — — 983,609 Accrued interest receivable 6,580 6,580 6,580 — — Equity securities without readily determinable fair values (1) 21,694 N/A — — — OMSR 2,306 2,306 — 2,306 — LIABILITIES Deposits without stated maturities 761,626 761,626 761,626 — — Deposits with stated maturities 433,414 430,088 — 430,088 — Borrowed funds 337,694 336,975 — 336,975 — Accrued interest payable 574 574 574 — — (1) Due to the characteristics of equity securities without readily determinable fair values, they are not disclosed under a specific fair value hierarchy. If we were to record an impairment adjustment related to these securities, such amount would be classified as a nonrecurring Level 3 fair value adjustment. Financial Instruments Recorded at Fair Value The table below presents the recorded amount of assets and liabilities measured at fair value on: September 30, 2017 December 31, 2016 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Recurring items AFS securities Government-sponsored enterprises $ 232 $ — $ 232 $ — $ 10,259 $ — $ 10,259 $ — States and political subdivisions 213,457 — 213,457 — 212,919 — 212,919 — Auction rate money market preferred 3,172 — 3,172 — 2,794 — 2,794 — Preferred stocks 3,651 3,651 — — 3,425 3,425 — — Mortgage-backed securities 215,914 — 215,914 — 227,256 — 227,256 — Collateralized mortgage obligations 116,499 — 116,499 — 101,443 — 101,443 — Total AFS securities 552,925 3,651 549,274 — 558,096 3,425 554,671 — Derivative instruments 215 — 215 — 248 — 248 — Nonrecurring items Impaired loans (net of the ALLL) 16,158 — — 16,158 9,166 — — 9,166 Foreclosed assets 240 — — 240 231 — — 231 Total $ 569,538 $ 3,651 $ 549,489 $ 16,398 $ 567,741 $ 3,425 $ 554,919 $ 9,397 Percent of assets and liabilities measured at fair value 0.64 % 96.48 % 2.88 % 0.60 % 97.74 % 1.66 % We had no assets or liabilities recorded at fair value with changes in fair value recognized through earnings, on a recurring basis, as of September 30, 2017 . Foreclosed assets, which are recorded at fair value with changes in fair value recognized through earnings on a nonrecurring basis, were written down to $240 as of September 30, 2017 which resulted in an impairment recorded through earnings in the amount of $2 for the nine month period ended September 30, 2017 . We had no other assets or liabilities recorded at fair value with changes in fair value recognized through earnings, on a nonrecurring basis, as of September 30, 2017 .

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2017
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income The following table summarizes the changes in AOCI by component for the: Three Months Ended September 30 2017 2016 Unrealized Unrealized Defined Total Unrealized Unrealized Defined Total Balance, July 1 $ 2,923 $ 135 $ (2,972 ) $ 86 $ 10,982 $ (100 ) $ (3,315 ) $ 7,567 OCI before reclassifications (96 ) 11 — (85 ) (2,548 ) 91 — (2,457 ) Amounts reclassified from AOCI — — — — — — — — Subtotal (96 ) 11 — (85 ) (2,548 ) 91 — (2,457 ) Tax effect 54 (4 ) — 50 937 (31 ) — 906 OCI, net of tax (42 ) 7 — (35 ) (1,611 ) 60 — (1,551 ) Balance, September 30 $ 2,881 $ 142 $ (2,972 ) $ 51 $ 9,371 $ (40 ) $ (3,315 ) $ 6,016 Nine Months Ended September 30 2017 2016 Unrealized Unrealized Defined Total Unrealized Unrealized Defined Total Balance, January 1 $ 30 $ 164 $ (2,972 ) $ (2,778 ) $ 3,536 $ — $ (3,315 ) $ 221 OCI before reclassifications 4,151 (33 ) — 4,118 8,793 (61 ) — 8,732 Amounts reclassified from AOCI (142 ) — — (142 ) (245 ) — — (245 ) Subtotal 4,009 (33 ) — 3,976 8,548 (61 ) — 8,487 Tax effect (1,158 ) 11 — (1,147 ) (2,713 ) 21 — (2,692 ) OCI, net of tax 2,851 (22 ) — 2,829 5,835 (40 ) — 5,795 Balance, September 30 $ 2,881 $ 142 $ (2,972 ) $ 51 $ 9,371 $ (40 ) $ (3,315 ) $ 6,016 Included in OCI for the three and nine month periods ended September 30, 2017 and 2016 are changes in unrealized holding gains and losses related to auction rate money market preferred and preferred stocks. For federal income tax purposes, these securities are considered equity investments. As such, no deferred federal income taxes related to unrealized holding gains or losses are expected or recorded. A summary of the components of unrealized holding gains on AFS securities included in OCI follows for the: Three Months Ended September 30 2017 2016 Auction Rate Money Market Preferred and Preferred Stocks All Other AFS Securities Total Auction Rate Money Market Preferred and Preferred Stocks All Other AFS Securities Total Unrealized gains (losses) arising during the period $ 63 $ (159 ) $ (96 ) $ 208 $ (2,756 ) $ (2,548 ) Reclassification adjustment for net realized (gains) losses included in net income — — — — — — Net unrealized gains (losses) 63 (159 ) (96 ) 208 (2,756 ) (2,548 ) Tax effect — 54 54 — 937 937 Unrealized gains (losses), net of tax $ 63 $ (105 ) $ (42 ) $ 208 $ (1,819 ) $ (1,611 ) Nine Months Ended September 30 2017 2016 Auction Rate Money Market Preferred and Preferred Stocks All Other AFS Securities Total Auction Rate Money Market Preferred and Preferred Stocks All Other AFS Securities Total Unrealized gains (losses) arising during the period $ 604 $ 3,547 $ 4,151 $ 568 $ 8,225 $ 8,793 Reclassification adjustment for net realized (gains) losses included in net income — (142 ) (142 ) — (245 ) (245 ) Net unrealized gains (losses) 604 3,405 4,009 568 7,980 8,548 Tax effect — (1,158 ) (1,158 ) — (2,713 ) (2,713 ) Unrealized gains (losses), net of tax $ 604 $ 2,247 $ 2,851 $ 568 $ 5,267 $ 5,835

Parent Company Only Financial I

Parent Company Only Financial Information	9 Months Ended
	Sep. 30, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Parent Company Only Financial Information	Parent Company Only Financial Information Interim Condensed Balance Sheets September 30 December 31 ASSETS Cash on deposit at the Bank $ 945 $ 1,297 AFS securities — 251 Investments in subsidiaries 146,138 138,549 Premises and equipment 1,961 1,991 Other assets 52,795 52,846 TOTAL ASSETS $ 201,839 $ 194,934 LIABILITIES AND SHAREHOLDERS’ EQUITY Other liabilities $ 5,376 $ 7,035 Shareholders' equity 196,463 187,899 TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY $ 201,839 $ 194,934 Interim Condensed Statements of Income Three Months Ended Nine Months Ended 2017 2016 2017 2016 Income Dividends from subsidiaries $ 2,900 $ 2,000 $ 7,200 $ 5,600 Interest income — 3 2 11 Management fee and other 1,660 1,680 4,901 4,962 Total income 4,560 3,683 12,103 10,573 Expenses Compensation and benefits 1,118 1,196 3,608 3,580 Occupancy and equipment 456 438 1,332 1,281 Audit and related fees 148 193 412 389 Other 556 427 1,731 1,561 Total expenses 2,278 2,254 7,083 6,811 Income before income tax benefit and equity in undistributed earnings of subsidiaries 2,282 1,429 5,020 3,762 Federal income tax benefit 209 199 737 616 Income before equity in undistributed earnings of subsidiaries 2,491 1,628 5,757 4,378 Undistributed earnings of subsidiaries 1,045 1,965 4,759 5,639 Net income $ 3,536 $ 3,593 $ 10,516 $ 10,017 Interim Condensed Statements of Cash Flows Nine Months Ended 2017 2016 Operating activities Net income $ 10,516 $ 10,017 Adjustments to reconcile net income to cash provided by operations Undistributed earnings of subsidiaries (4,759 ) (5,639 ) Undistributed earnings of equity securities without readily determinable fair values 33 (287 ) Share-based payment awards under equity compensation plan 502 443 Depreciation 116 117 Changes in operating assets and liabilities which provided (used) cash Other assets 19 177 Accrued interest and other liabilities (1,659 ) (2,575 ) Net cash provided by (used in) operating activities 4,768 2,253 Investing activities Maturities, calls, principal payments, and sales of AFS securities 249 — Purchases of premises and equipment (86 ) (86 ) Net cash provided by (used in) investing activities 163 (86 ) Financing activities Cash dividends paid on common stock (5,950 ) (5,697 ) Proceeds from the issuance of common stock 4,999 3,683 Common stock repurchased (4,005 ) (2,749 ) Common stock purchased for deferred compensation obligations (327 ) (279 ) Net cash provided by (used in) financing activities (5,283 ) (5,042 ) Increase (decrease) in cash and cash equivalents (352 ) (2,875 ) Cash and cash equivalents at beginning of period 1,297 4,125 Cash and cash equivalents at end of period $ 945 $ 1,250

Operating Segments

Operating Segments	9 Months Ended
	Sep. 30, 2017
Segment Reporting [Abstract]
Operating Segments	Operating Segments Our reportable segments are based on legal entities that account for at least 10% of net operating results. The operations of the Bank as of September 30, 2017 and 2016 and each of the three and nine month periods then ended, represent approximately 90% or more of our consolidated total assets and operating results. As such, no additional segment reporting is presented.

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidation	As used in these notes, as well as in Management's Discussion and Analysis of Financial Condition and Results of Operations , references to “Isabella,” the “Corporation”, “we,” “our,” “us,” and similar terms refer to the consolidated entity consisting of Isabella Bank Corporation and its subsidiaries. Isabella Bank Corporation refers solely to the parent holding company, and Isabella Bank or the “Bank” refer to Isabella Bank Corporation ’s subsidiary, Isabella Bank .
Basis of Accounting	The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In our opinion, all adjustments considered necessary for a fair presentation have been included. Operating results for the three and nine month periods ended September 30, 2017 are not necessarily indicative of the results that may be expected for the year ending December 31, 2017 . For further information, refer to our Annual Report on Form 10-K for the year ended December 31, 2016 .
Earnings Per Share	Basic earnings per common share represents income available to common shareholders divided by the weighted average number of common shares outstanding during the period. Diluted earnings per common share reflects additional common shares that would have been outstanding if dilutive potential common shares had been issued. Potential common shares that may be issued relate solely to outstanding shares in the Directors Plan .
Available-for-sale Securities	As of September 30, 2017 and December 31, 2016 , we conducted an analysis to determine whether any AFS securities currently in an unrealized loss position should be other-than-temporarily impaired. Such analyses considered, among other factors, the following criteria: • Has the value of the investment declined more than what is deemed to be reasonable based on a risk and maturity adjusted discount rate? • Is the investment credit rating below investment grade? • Is it probable the issuer will be unable to pay the amount when due? • Is it more likely than not that we will have to sell the security before recovery of its cost basis? • Has the duration of the investment been extended?
Nonaccrual Loan Status	The accrual of interest on commercial, agricultural, and residential real estate loans is discontinued at the time the loan is 90 days or more past due unless the credit is well-secured and in the process of collection. Upon transferring the loans to nonaccrual status, we perform an evaluation to determine the net realizable value of the underlying collateral. This evaluation is used to help determine if any charge-offs are necessary. Consumer loans are typically charged-off no later than 180 days past due. Past due status is based on contractual terms of the loan. In all cases, loans are placed on nonaccrual status or charged-off at an earlier date if collection of principal or interest is considered doubtful. For loans that are placed on nonaccrual status or charged-off , all interest accrued in the current calendar year, but not collected, is reversed against interest income while interest accrued in prior calendar years, but not collected, is charged against the ALLL . Loans may be returned to accrual status after six months of continuous performance and achievement of current payment status.
Loans Receivable	Loans that we have the intent and ability to hold in our portfolio are reported at their outstanding principal balance adjusted for any charge-offs , the ALLL , and any deferred fees or costs. Interest income is accrued over the term of the loan based on the principal amount outstanding. Loan origination fees and certain direct loan origination costs are capitalized and recognized as a component of interest income over the term of the loan using the level yield method. Commercial and agricultural loans include loans for commercial real estate, commercial operating loans, advances to mortgage brokers, farmland and agricultural production, and states and political subdivisions. Repayment of these loans is dependent upon the successful operation and management of a business. We minimize our risk by limiting the amount of direct credit exposure to any one borrower to $15,000 . Borrowers with direct credit needs of more than $15,000 are serviced through the use of loan participations with other commercial banks. Commercial and agricultural real estate loans commonly require loan-to-value limits of 80% or less. Depending upon the type of loan, past credit history, and current operating results, we may require the borrower to pledge accounts receivable, inventory, and property and equipment. Personal guarantees are generally required from the owners of closely held corporations, partnerships, and sole proprietorships. In addition, we require annual financial statements, prepare cash flow analyses, and review credit reports. We entered into a mortgage purchase program in 2016 with a financial institution where we participate in advances to mortgage brokers ("advances"). The mortgage brokers originate residential mortgage loans with the intent to sell them on the secondary market. We participate in the advance to the mortgage broker, which is secured by the underlying mortgage loan, until it is ultimately sold on the secondary market. As such, the average life of each participated advance is approximately 20 - 30 days. Funds from the sale of the loan are used to payoff our participation in the advance to the mortgage broker. We classify these advances as commercial loans and include the outstanding balance in commercial loans on our balance sheet. Under the participation agreement, we committed to a maximum outstanding aggregate amount of $30,000 . The difference between our outstanding balances and the maximum outstanding aggregate amount is classified as “ Unfunded commitments under lines of credit ” in the “ Contractual Obligations and Loan Commitments ” section of the Management's Discussion and Analysis of Financial Condition and Results of Operations of this report. We offer adjustable rate mortgages, construction loans, and fixed rate residential real estate loans which have amortization periods up to a maximum of 30 years. We consider the anticipated direction of interest rates, balance sheet duration, the sensitivity of our balance sheet to changes in interest rates, and overall loan demand to determine whether or not to sell fixed rate loans to Freddie Mac . Our lending policies generally limit the maximum loan-to-value ratio on residential real estate loans to 100% of the lower of the appraised value of the property or the purchase price. Private mortgage insurance is typically required on loans with loan-to-value ratios in excess of 80% unless the loan qualifies for government guarantees. Underwriting criteria for originated residential real estate loans generally include: • Evaluation of the borrower’s ability to make monthly payments. • Evaluation of the value of the property securing the loan. • Ensuring the payment of principal, interest, taxes, and hazard insurance does not exceed 28% of a borrower’s gross income. • Ensuring all debt servicing does not exceed 40% of income. • Verification of acceptable credit reports. • Verification of employment, income, and financial information. Appraisals are performed by independent appraisers and reviewed for appropriateness. All originated mortgage loan requests are reviewed by our mortgage loan committee or through a secondary market underwriting system; loans in excess of $500 require the approval of our Internal Loan Committee, the Executive Loan Committee, the Board of Directors’ Loan Committee, or the Board of Directors. Consumer loans include secured and unsecured personal loans. Loans are amortized for a period of up to 12 years based on the age and value of the underlying collateral. The underwriting emphasis is on a borrower’s perceived intent and ability to pay rather than collateral value. No consumer loans are sold to the secondary market.
Allowance for Loan Losses	The ALLL is established as losses are estimated to have occurred through a provision for loan losses charged to earnings. Loan losses are charged against the ALLL when we believe the uncollectability of the loan balance is confirmed. Subsequent recoveries, if any, are credited to the ALLL . The appropriateness of the ALLL is evaluated on a quarterly basis and is based upon a periodic review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral, and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. The primary factors behind the determination of the level of the ALLL are specific allocations for impaired loans, historical loss percentages, as well as unallocated components. Specific allocations for impaired loans are primarily determined based on the difference between the loan’s outstanding balance and the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral, less cost to sell. Historical loss allocations are calculated at the loan class and segment levels based on a migration analysis of the loan portfolio, with the exception of advances to mortgage brokers, over the preceding five years. With no historical losses on advances to mortgage brokers, there is no allocation in the commercial segment displayed in the following tables based on historical loss factors. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the methodologies for estimating specific and general losses in the portfolio.
Internal Credit Risk Ratings	Internally assigned credit risk ratings are reviewed, at a minimum, when loans are renewed or when management has knowledge of improvements or deterioration of the credit quality of individual credits. Descriptions of the internally assigned credit risk ratings for commercial and agricultural loans are as follows: 1. EXCELLENT – Substantially Risk Free Credit has strong financial condition and solid earnings history, characterized by: • High liquidity, strong cash flow, low leverage. • Unquestioned ability to meet all obligations when due. • Experienced management, with management succession in place. • Secured by cash. 2. HIGH QUALITY – Limited Risk Credit with sound financial condition and a positive trend in earnings supplemented by: • Favorable liquidity and leverage ratios. • Ability to meet all obligations when due. • Management with successful track record. • Steady and satisfactory earnings history. • If loan is secured, collateral is of high quality and readily marketable. • Access to alternative financing. • Well defined primary and secondary source of repayment. • If supported by guaranty, the financial strength and liquidity of the guarantor(s) are clearly evident. 3. HIGH SATISFACTORY – Reasonable Risk Credit with satisfactory financial condition and further characterized by: • Working capital adequate to support operations. • Cash flow sufficient to pay debts as scheduled. • Management experience and depth appear favorable. • Loan performing according to terms. • If loan is secured, collateral is acceptable and loan is fully protected. 4. LOW SATISFACTORY – Acceptable Risk Credit with bankable risks, although some signs of weaknesses are shown: • Would include most start-up businesses. • Occasional instances of trade slowness or repayment delinquency – may have been 10 - 30 days slow within the past year. • Management’s abilities are apparent, yet unproven. • Weakness in primary source of repayment with adequate secondary source of repayment. • Loan structure generally in accordance with policy. • If secured, loan collateral coverage is marginal. • Adequate cash flow to service debt, but coverage is low. To be classified as less than satisfactory, only one of the following criteria must be met. 5. SPECIAL MENTION – Criticized Credit constitutes an undue and unwarranted credit risk but not to the point of justifying a classification of substandard. The credit risk may be relatively minor yet constitute an unwarranted risk in light of the circumstances surrounding a specific loan: • Downward trend in sales, profit levels, and margins. • Impaired working capital position. • Cash flow is strained in order to meet debt repayment. • Loan delinquency ( 30 - 60 days) and overdrafts may occur. • Shrinking equity cushion. • Diminishing primary source of repayment and questionable secondary source. • Management abilities are questionable. • Weak industry conditions. • Litigation pending against the borrower. • Collateral or guaranty offers limited protection. • Negative debt service coverage, however the credit is well collateralized and payments are current. 6. SUBSTANDARD – Classified Credit where the borrower’s current net worth, paying capacity, and value of the collateral pledged is inadequate. There is a distinct possibility that we will implement collection procedures if the loan deficiencies are not corrected. In addition, the following characteristics may apply: • Sustained losses have severely eroded the equity and cash flow. • Deteriorating liquidity. • Serious management problems or internal fraud. • Original repayment terms liberalized. • Likelihood of bankruptcy. • Inability to access other funding sources. • Reliance on secondary source of repayment. • Litigation filed against borrower. • Collateral provides little or no value. • Requires excessive attention of the loan officer. • Borrower is uncooperative with loan officer. 7. VULNERABLE – Classified Credit is considered “Substandard” and warrants placing on nonaccrual status. Risk of loss is being evaluated and exit strategy options are under review. Other characteristics that may apply: • Insufficient cash flow to service debt. • Minimal or no payments being received. • Limited options available to avoid the collection process. • Transition status, expect action will take place to collect loan without immediate progress being made. 8. DOUBTFUL – Workout Credit has all the weaknesses inherent in a “Substandard” loan with the added characteristic that collection and/or liquidation is pending. The possibility of a loss is extremely high, but its classification as a loss is deferred until liquidation procedures are completed, or reasonably estimable. Other characteristics that may apply: • Normal operations are severely diminished or have ceased. • Seriously impaired cash flow. • Original repayment terms materially altered. • Secondary source of repayment is inadequate. • Survivability as a “going concern” is impossible. • Collection process has begun. • Bankruptcy petition has been filed. • Judgments have been filed. • Portion of the loan balance has been charged-off .
Impaired Loans	Loans may be classified as impaired if they meet one or more of the following criteria: 1. There has been a charge-off of its principal balance (in whole or in part); 2. The loan has been classified as a TDR ; or 3. The loan is in nonaccrual status. Impairment is measured on a loan-by-loan basis for commercial and agricultural loans by comparing the loan’s outstanding balance to the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral, less cost to sell, if the loan is collateral dependent. Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Impairment is measured on a loan-by-loan basis for residential real estate and consumer loans by comparing the loan’s unpaid principal balance to the present value of expected future cash flows discounted at the loan’s effective interest rate. We do not recognize interest income on impaired loans in nonaccrual status. For impaired loans not classified as nonaccrual , interest income is recognized daily, as earned, according to the terms of the loan agreement and the principal amount outstanding.
Troubled Debt Restructurings	Loan modifications are considered to be TDRs when the modification includes terms outside of normal lending practices to a borrower who is experiencing financial difficulties. Typical concessions granted include, but are not limited to: • Agreeing to interest rates below prevailing market rates for debt with similar risk characteristics. • Extending the amortization period beyond typical lending guidelines for loans with similar risk characteristics. • Agreeing to an interest only payment structure and delaying principal payments. • Forgiving principal. • Forgiving accrued interest. To determine if a borrower is experiencing financial difficulties, factors we consider include: • The borrower is currently in default on any of their debt. • The borrower would likely default on any of their debt if the concession was not granted. • The borrower’s cash flow was insufficient to service all of their debt if the concession was not granted. • The borrower has declared, or is in the process of declaring, bankruptcy. • The borrower is unlikely to continue as a going concern (if the entity is a business).
Derivative Instruments	The interest rate swaps, associated with our variable rate borrowings, are designated upon inception as cash flow hedges of forecasted interest payments. We enter into LIBOR-based interest rate swaps that involve the receipt of variable amounts in exchange for fixed rate payments, in effect converting variable rate debt to fixed rate debt. Cash flow hedges are assessed for effectiveness using regression analysis. The effective portion of changes in fair value are recorded in OCI and subsequently reclassified into interest expense in the same period in which the related interest on the variable rate borrowings affects earnings. In the event that a portion of the changes in fair value were determined to be ineffective, the ineffective amount would be recorded in earnings.

Computation of Earnings Per C24

Computation of Earnings Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Computation of earnings per common share	Three Months Ended Nine Months Ended 2017 2016 2017 2016 Average number of common shares outstanding for basic calculation 7,848,317 7,824,751 7,839,172 7,813,084 Average potential effect of common shares in the Directors Plan (1) 192,572 186,667 191,548 184,996 Average number of common shares outstanding used to calculate diluted earnings per common share 8,040,889 8,011,418 8,030,720 7,998,080 Net income $ 3,536 $ 3,593 $ 10,516 $ 10,017 Earnings per common share Basic $ 0.45 $ 0.46 $ 1.34 $ 1.28 Diluted $ 0.44 $ 0.45 $ 1.31 $ 1.25 (1) Exclusive of shares held in the Rabbi Trust

AFS Securities (Tables)

AFS Securities (Tables)	9 Months Ended
	Sep. 30, 2017
Investments, Debt and Equity Securities [Abstract]
Amortized cost and fair value of available-for-sale securities	The amortized cost and fair value of AFS securities , with gross unrealized gains and losses, are as follows at: September 30, 2017 Amortized Gross Gross Fair Government sponsored enterprises $ 231 $ 1 $ — $ 232 States and political subdivisions 207,874 5,596 13 213,457 Auction rate money market preferred 3,200 — 28 3,172 Preferred stocks 3,800 — 149 3,651 Mortgage-backed securities 216,684 860 1,630 215,914 Collateralized mortgage obligations 116,679 600 780 116,499 Total $ 548,468 $ 7,057 $ 2,600 $ 552,925 December 31, 2016 Amortized Gross Gross Fair Government sponsored enterprises $ 10,258 $ 3 $ 2 $ 10,259 States and political subdivisions 208,977 4,262 320 212,919 Auction rate money market preferred 3,200 — 406 2,794 Preferred stocks 3,800 — 375 3,425 Mortgage-backed securities 229,593 581 2,918 227,256 Collateralized mortgage obligations 101,820 600 977 101,443 Total $ 557,648 $ 5,446 $ 4,998 $ 558,096
Amortized cost and fair value of available-for-sale securities by contractual maturity	The amortized cost and fair value of AFS securities by contractual maturity at September 30, 2017 are as follows: Maturing Securities with Variable Monthly Payments or Noncontractual Maturities Due in After One After Five After Total Government sponsored enterprises $ — $ 231 $ — $ — $ — $ 231 States and political subdivisions 25,689 73,810 75,598 32,777 — 207,874 Auction rate money market preferred — — — — 3,200 3,200 Preferred stocks — — — — 3,800 3,800 Mortgage-backed securities — — — — 216,684 216,684 Collateralized mortgage obligations — — — — 116,679 116,679 Total amortized cost $ 25,689 $ 74,041 $ 75,598 $ 32,777 $ 340,363 $ 548,468 Fair value $ 25,746 $ 76,105 $ 78,383 $ 33,455 $ 339,236 $ 552,925
Summary of the activity related to sales of available-for-sale securities	A summary of the sales activity of AFS securities was as follows for the: Three Months Ended September 30 Nine Months Ended September 30 2017 2016 2017 2016 Proceeds from sales of AFS securities $ — $ — $ 12,827 $ 35,664 Gross realized gains (losses) $ — $ — $ 142 $ 245 Applicable income tax expense (benefit) $ — $ — $ 48 $ 83
Available-for-sale securities with gross unrealized losses	The following information pertains to AFS securities with gross unrealized losses at September 30, 2017 and December 31, 2016 , aggregated by investment category and length of time that individual securities have been in a continuous loss position. September 30, 2017 Less Than Twelve Months Twelve Months or More Gross Fair Gross Fair Total Government sponsored enterprises $ — $ — $ — $ — $ — States and political subdivisions 12 3,321 1 221 13 Auction rate money market preferred — — 28 3,172 28 Preferred stocks — — 149 3,651 149 Mortgage-backed securities 1,277 106,229 353 12,777 1,630 Collateralized mortgage obligations 331 33,969 449 15,303 780 Total $ 1,620 $ 143,519 $ 980 $ 35,124 $ 2,600 Number of securities in an unrealized loss position: 35 13 48 December 31, 2016 Less Than Twelve Months Twelve Months or More Gross Fair Gross Fair Total Government sponsored enterprises $ 2 $ 9,936 $ — $ — $ 2 States and political subdivisions 311 21,800 9 355 320 Auction rate money market preferred — — 406 2,794 406 Preferred stocks — — 375 3,425 375 Mortgage-backed securities 2,918 175,212 — — 2,918 Collateralized mortgage obligations 628 51,466 349 11,381 977 Total $ 3,859 $ 258,414 $ 1,139 $ 17,955 $ 4,998 Number of securities in an unrealized loss position: 104 9 113

Loans and ALLL (Tables)

Loans and ALLL (Tables)	9 Months Ended
	Sep. 30, 2017
Receivables [Abstract]
Summary of changes in the ALLL and the recorded investment in loans by segments	Allowance for Loan Losses Three Months Ended September 30, 2016 Commercial Agricultural Residential Real Estate Consumer Unallocated Total July 1, 2016 $ 2,119 $ 534 $ 3,130 $ 541 $ 1,276 $ 7,600 Charge-offs — — (57 ) (74 ) — (131 ) Recoveries 118 — 153 43 — 314 Provision for loan losses (367 ) 612 (452 ) 94 130 17 September 30, 2016 $ 1,870 $ 1,146 $ 2,774 $ 604 $ 1,406 $ 7,800 Allowance for Loan Losses Nine Months Ended September 30, 2016 Commercial Agricultural Residential Real Estate Consumer Unallocated Total January 1, 2016 $ 2,171 $ 329 $ 3,330 $ 522 $ 1,048 $ 7,400 Charge-offs (48 ) — (426 ) (206 ) — (680 ) Recoveries 396 92 248 159 — 895 Provision for loan losses (649 ) 725 (378 ) 129 358 185 September 30, 2016 $ 1,870 $ 1,146 $ 2,774 $ 604 $ 1,406 $ 7,800 A summary of changes in the ALLL and the recorded investment in loans by segments follows: Allowance for Loan Losses Three Months Ended September 30, 2017 Commercial Agricultural Residential Real Estate Consumer Unallocated Total July 1, 2017 $ 1,978 $ 475 $ 2,598 $ 583 $ 1,966 $ 7,600 Charge-offs (8 ) — (77 ) (72 ) — (157 ) Recoveries 134 — 41 33 — 208 Provision for loan losses 65 (40 ) (71 ) 89 6 49 September 30, 2017 $ 2,169 $ 435 $ 2,491 $ 633 $ 1,972 $ 7,700 Allowance for Loan Losses Nine Months Ended September 30, 2017 Commercial Agricultural Residential Real Estate Consumer Unallocated Total January 1, 2017 $ 1,814 $ 884 $ 2,664 $ 624 $ 1,414 $ 7,400 Charge-offs (60 ) — (120 ) (190 ) — (370 ) Recoveries 322 — 140 123 — 585 Provision for loan losses 93 (449 ) (193 ) 76 558 85 September 30, 2017 $ 2,169 $ 435 $ 2,491 $ 633 $ 1,972 $ 7,700
Allowance for Loan Losses and Recorded Investment in Loans	Allowance for Loan Losses and Recorded Investment in Loans September 30, 2017 Commercial Agricultural Residential Real Estate Consumer Unallocated Total ALLL Individually evaluated for impairment $ 933 $ — $ 1,618 $ — $ — $ 2,551 Collectively evaluated for impairment 1,236 435 873 633 1,972 5,149 Total $ 2,169 $ 435 $ 2,491 $ 633 $ 1,972 $ 7,700 Loans Individually evaluated for impairment $ 8,525 $ 10,976 $ 8,426 $ 18 $ 27,945 Collectively evaluated for impairment 611,610 122,022 263,054 52,913 1,049,599 Total $ 620,135 $ 132,998 $ 271,480 $ 52,931 $ 1,077,544 Allowance for Loan Losses and Recorded Investment in Loans December 31, 2016 Commercial Agricultural Residential Real Estate Consumer Unallocated Total ALLL Individually evaluated for impairment $ 741 $ 1 $ 1,629 $ — $ — $ 2,371 Collectively evaluated for impairment 1,073 883 1,035 624 1,414 5,029 Total $ 1,814 $ 884 $ 2,664 $ 624 $ 1,414 $ 7,400 Loans Individually evaluated for impairment $ 7,859 $ 5,545 $ 8,638 $ 26 $ 22,068 Collectively evaluated for impairment 567,805 120,947 257,412 42,383 988,547 Total $ 575,664 $ 126,492 $ 266,050 $ 42,409 $ 1,010,615
Credit quality indicators for commercial and agricultural credit exposures	The following table displays the credit quality indicators for commercial and agricultural credit exposures based on internally assigned credit risk ratings as of: September 30, 2017 Commercial Agricultural Real Estate Other Advances to Mortgage Brokers Total Real Estate Other Total Total Rating 1 - Excellent $ 25 $ 227 $ — $ 252 $ — $ — $ — $ 252 2 - High quality 6,736 10,474 — 17,210 3,088 1,001 4,089 21,299 3 - High satisfactory 117,596 41,844 22,834 182,274 21,743 9,822 31,565 213,839 4 - Low satisfactory 327,648 77,519 — 405,167 48,902 21,363 70,265 475,432 5 - Special mention 4,402 1,912 — 6,314 11,206 9,115 20,321 26,635 6 - Substandard 6,303 2,402 — 8,705 3,861 1,912 5,773 14,478 7 - Vulnerable 210 3 — 213 488 497 985 1,198 8 - Doubtful — — — — — — — — Total $ 462,920 $ 134,381 $ 22,834 $ 620,135 $ 89,288 $ 43,710 $ 132,998 $ 753,133 December 31, 2016 Commercial Agricultural Real Estate Other Advances to Mortgage Brokers Total Real Estate Other Total Total Rating 1 - Excellent $ 28 $ 438 $ — $ 466 $ — $ — $ — $ 466 2 - High quality 11,821 12,091 19,688 43,600 3,566 1,426 4,992 48,592 3 - High satisfactory 103,529 41,982 — 145,511 21,657 11,388 33,045 178,556 4 - Low satisfactory 299,317 74,432 — 373,749 48,955 22,715 71,670 445,419 5 - Special mention 3,781 1,178 — 4,959 6,009 3,085 9,094 14,053 6 - Substandard 5,901 1,474 — 7,375 3,650 3,508 7,158 14,533 7 - Vulnerable 4 — — 4 — 533 533 537 8 - Doubtful — — — — — — — — Total $ 424,381 $ 131,595 $ 19,688 $ 575,664 $ 83,837 $ 42,655 $ 126,492 $ 702,156
Summary of past due and current loans	The following tables summarize the past due and current loans as of: September 30, 2017 Accruing Interest Total Past Due and Nonaccrual 30-59 60-89 90 Days Nonaccrual Current Total Commercial Commercial real estate $ 466 $ — $ — $ 211 $ 677 $ 462,243 $ 462,920 Commercial other 823 29 — 3 855 133,526 134,381 Advances to mortgage brokers — — — — — 22,834 22,834 Total commercial 1,289 29 — 214 1,532 618,603 620,135 Agricultural Agricultural real estate — — 590 488 1,078 88,210 89,288 Agricultural other 490 3 — 497 990 42,720 43,710 Total agricultural 490 3 590 985 2,068 130,930 132,998 Residential real estate Senior liens 1,514 — 56 383 1,953 225,215 227,168 Junior liens 8 — — 23 31 7,348 7,379 Home equity lines of credit 217 — — — 217 36,716 36,933 Total residential real estate 1,739 — 56 406 2,201 269,279 271,480 Consumer Secured 39 11 — — 50 49,027 49,077 Unsecured 2 — — — 2 3,852 3,854 Total consumer 41 11 — — 52 52,879 52,931 Total $ 3,559 $ 43 $ 646 $ 1,605 $ 5,853 $ 1,071,691 $ 1,077,544 December 31, 2016 Accruing Interest Total Past Due and Nonaccrual 30-59 60-89 90 Days Nonaccrual Current Total Commercial Commercial real estate $ 1,580 $ — $ 35 $ 4 $ 1,619 $ 422,762 $ 424,381 Commercial other 1,693 35 — — 1,728 129,867 131,595 Advances to mortgage brokers — — — — — 19,688 19,688 Total commercial 3,273 35 35 4 3,347 572,317 575,664 Agricultural Agricultural real estate 191 — 508 — 699 83,138 83,837 Agricultural other 19 — — 533 552 42,103 42,655 Total agricultural 210 — 508 533 1,251 125,241 126,492 Residential real estate Senior liens 1,638 174 22 498 2,332 216,681 219,013 Junior liens 15 — — 25 40 8,317 8,357 Home equity lines of credit 270 6 68 — 344 38,336 38,680 Total residential real estate 1,923 180 90 523 2,716 263,334 266,050 Consumer Secured 110 — — — 110 38,582 38,692 Unsecured 5 — — — 5 3,712 3,717 Total consumer 115 — — — 115 42,294 42,409 Total $ 5,521 $ 215 $ 633 $ 1,060 $ 7,429 $ 1,003,186 $ 1,010,615
Information pertaining to impaired loans	The following is a summary of information pertaining to impaired loans as of: September 30, 2017 December 31, 2016 Recorded Balance Unpaid Principal Balance Valuation Allowance Recorded Balance Unpaid Principal Balance Valuation Allowance Impaired loans with a valuation allowance Commercial real estate $ 4,209 $ 4,328 $ 766 $ 5,811 $ 5,992 $ 716 Commercial other 2,239 2,239 167 1,358 1,358 25 Agricultural real estate — — — — — — Agricultural other — — — 134 134 1 Residential real estate senior liens 8,273 8,903 1,605 8,464 9,049 1,615 Residential real estate junior liens 70 70 13 72 82 14 Home equity lines of credit — — — — — — Consumer secured — — — — — — Total impaired loans with a valuation allowance 14,791 15,540 2,551 15,839 16,615 2,371 Impaired loans without a valuation allowance Commercial real estate 1,988 2,062 604 617 Commercial other 89 89 86 97 Agricultural real estate 7,834 7,834 4,037 4,037 Agricultural other 3,142 3,142 1,374 1,374 Home equity lines of credit 83 383 102 402 Consumer secured 18 18 26 26 Total impaired loans without a valuation allowance 13,154 13,528 6,229 6,553 Impaired loans Commercial 8,525 8,718 933 7,859 8,064 741 Agricultural 10,976 10,976 — 5,545 5,545 1 Residential real estate 8,426 9,356 1,618 8,638 9,533 1,629 Consumer 18 18 — 26 26 — Total impaired loans $ 27,945 $ 29,068 $ 2,551 $ 22,068 $ 23,168 $ 2,371 The following is a summary of information pertaining to impaired loans for the: Three Months Ended September 30 2017 2016 Average Recorded Balance Interest Income Recognized Average Recorded Balance Interest Income Recognized Impaired loans with a valuation allowance Commercial real estate $ 4,636 $ 68 $ 5,699 $ 90 Commercial other 1,669 28 746 2 Agricultural real estate — — 181 4 Agricultural other — — 67 1 Residential real estate senior liens 8,333 79 8,896 85 Residential real estate junior liens 73 1 105 — Home equity lines of credit 35 — — — Consumer secured — — — — Total impaired loans with a valuation allowance 14,746 176 15,694 182 Impaired loans without a valuation allowance Commercial real estate 1,546 31 705 10 Commercial other 93 2 67 2 Agricultural real estate 7,830 98 3,360 42 Agricultural other 3,221 39 767 11 Home equity lines of credit 86 5 112 4 Consumer secured 19 — 31 1 Total impaired loans without a valuation allowance 12,795 175 5,042 70 Impaired loans Commercial 7,944 129 7,217 104 Agricultural 11,051 137 4,375 58 Residential real estate 8,527 85 9,113 89 Consumer 19 — 31 1 Total impaired loans $ 27,541 $ 351 $ 20,736 $ 252 Nine Months Ended September 30 2017 2016 Average Recorded Balance Interest Income Recognized Average Recorded Balance Interest Income Recognized Impaired loans with a valuation allowance Commercial real estate $ 4,765 $ 225 $ 5,748 $ 259 Commercial other 1,363 75 298 5 Agricultural real estate — — 91 6 Agricultural other 22 — 78 1 Residential real estate senior liens 8,379 245 9,439 278 Residential real estate junior liens 75 2 126 2 Home equity lines of credit 23 — — — Consumer secured — — — — Total impaired loans with a valuation allowance 14,627 547 15,780 551 Impaired loans without a valuation allowance Commercial real estate 1,483 83 995 57 Commercial other 109 6 92 6 Agricultural real estate 5,936 218 3,454 130 Agricultural other 2,353 85 574 27 Home equity lines of credit 115 15 118 12 Consumer secured 22 — 33 3 Total impaired loans without a valuation allowance 10,018 407 5,266 235 Impaired loans Commercial 7,720 389 7,133 327 Agricultural 8,311 303 4,197 164 Residential real estate 8,592 262 9,683 292 Consumer 22 — 33 3 Total impaired loans $ 24,645 $ 954 $ 21,046 $ 786
Information pertaining to TDR's	The following is a summary of information pertaining to TDRs granted for the: Three Months Ended September 30 2017 2016 Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment Commercial other 3 $ 1,385 $ 1,385 1 $ 1,315 $ 1,315 Agricultural other — — — 2 319 319 Residential real estate Senior liens 2 179 179 — — — Junior liens — — — — — — Total residential real estate 2 179 179 — — — Consumer unsecured — — — — — — Total 5 $ 1,564 $ 1,564 3 $ 1,634 $ 1,634 Nine Months Ended September 30 2017 2016 Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Post-Modification Recorded Investment Commercial other 6 $ 1,698 $ 1,698 1 $ 1,315 $ 1,315 Agricultural other 7 5,445 5,445 5 520 520 Residential real estate Senior liens 5 434 434 2 26 26 Junior liens 1 8 8 — — — Total residential real estate 6 442 442 2 26 26 Consumer unsecured — — — 1 2 2 Total 19 $ 7,585 $ 7,585 9 $ 1,863 $ 1,863 The following tables summarize concessions we granted to borrowers in financial difficulty for the: Three Months Ended September 30 2017 2016 Below Market Interest Rate Below Market Interest Rate and Extension of Amortization Period Below Market Interest Rate Below Market Interest Rate and Extension of Amortization Period Number of Loans Pre-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Commercial other — $ — 3 $ 1,385 — $ — 1 $ 1,315 Agricultural other — — — — 1 14 1 305 Residential real estate Senior liens — — 2 179 — — — — Junior liens — — — — — — — — Total residential real estate — — 2 179 — — — — Consumer unsecured — — — — — — — — Total — $ — 5 $ 1,564 1 $ 14 2 $ 1,620 Nine Months Ended September 30 2017 2016 Below Market Interest Rate Below Market Interest Rate and Extension of Amortization Period Below Market Interest Rate Below Market Interest Rate and Extension of Amortization Period Number of Loans Pre-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Number of Loans Pre-Modification Recorded Investment Commercial other — $ — 6 $ 1,698 — $ — 1 $ 1,315 Agricultural other 4 1,349 3 4,096 1 14 4 506 Residential real estate Senior liens — — 5 434 2 26 — — Junior liens 1 8 — — — — — — Total residential real estate 1 8 5 434 2 26 — — Consumer unsecured — — — — — — 1 2 Total 5 $ 1,357 14 $ 6,228 3 $ 40 6 $ 1,823 The following is a summary of TDR loan balances as of: September 30, 2017 December 31, 2016 TDRs $ 27,259 $ 21,382

Equity Securities Without Rea27

Equity Securities Without Readily Determinable Fair Values (Tables)	9 Months Ended
	Sep. 30, 2017
Equity Method And Other Investments [Abstract]
Schedule of equity method and other investments	Equity securities without readily determinable fair values consist of the following as of: September 30 December 31 FHLB Stock $ 13,700 $ 11,900 Corporate Settlement Solutions, LLC 7,428 7,461 FRB Stock 1,999 1,999 Other 334 334 Total $ 23,461 $ 21,694

Foreclosed Assets (Tables)

Foreclosed Assets (Tables)	9 Months Ended
	Sep. 30, 2017
Banking and Thrift [Abstract]
Schedule of Foreclosed Assets [Table Text Block]	Foreclosed assets are included in other assets in the consolidated balance sheets and consist of other real estate owned and repossessed assets. The following is a summary of foreclosed assets as of: September 30 December 31 Consumer mortgage loans collateralized by residential real estate foreclosed as a result of obtaining physical possession $ 20 $ 18 All other foreclosed assets 220 213 Total $ 240 $ 231 There were $260 and $18 of consumer mortgage loans collateralized by residential real estate in the process of foreclosure as of September 30, 2017 and December 31, 2016 . Below is a summary of changes in foreclosed assets during the: Three Months Ended September 30 2017 2016 Balance, July 1 $ 229 $ 249 Properties transferred 118 95 Impairments (2 ) — Proceeds from sale (105 ) (60 ) Balance, Septembe r 30 $ 240 $ 284 Nine Months Ended September 30 2017 2016 Balance, January 1 $ 231 $ 421 Properties transferred 214 211 Impairments (2 ) — Proceeds from sale (203 ) (348 ) Balance, Septembe r 30 $ 240 $ 284

Borrowed Funds (Tables)

Borrowed Funds (Tables)	9 Months Ended
	Sep. 30, 2017
Debt Disclosure [Abstract]
Summary of borrowed funds	Borrowed funds consist of the following obligations as of: September 30, 2017 December 31, 2016 Amount Rate Amount Rate FHLB advances $ 310,000 1.83 % $ 270,000 1.82 % Securities sold under agreements to repurchase without stated maturity dates 54,977 0.12 % 60,894 0.13 % Federal funds purchased 2,050 1.39 % 6,800 1.00 % Total $ 367,027 1.57 % $ 337,694 1.50 %
Federal Home Loan Bank, Advances	The following table lists the maturities and weighted average interest rates of FHLB advances as of: September 30, 2017 December 31, 2016 Amount Rate Amount Rate Fixed rate due 2017 $ 40,000 1.13 % $ 70,000 1.39 % Fixed rate due 2018 50,000 2.16 % 50,000 2.16 % Fixed rate due 2019 85,000 1.87 % 60,000 1.99 % Fixed rate due 2020 35,000 1.52 % 10,000 1.98 % Fixed rate due 2021 50,000 1.91 % 50,000 1.91 % Variable rate due 2021 1 10,000 1.61 % 10,000 1.21 % Fixed rate due 2022 20,000 1.97 % — — % Fixed rate due 2023 10,000 3.90 % 10,000 3.90 % Fixed rate due 2026 10,000 1.17 % 10,000 1.17 % Total $ 310,000 1.83 % $ 270,000 1.82 % (1) Hedged advance (see " Derivative Instruments " section below)
Summary of short term borrowings	The following table provides a summary of securities sold under repurchase agreements without stated maturity dates, federal funds purchased, and FRB Discount Window advances. Three Months Ended September 30 2017 2016 Maximum Month End Balance Average Balance Weighted Average Interest Rate During the Period Maximum Month End Balance Average Balance Weighted Average Interest Rate During the Period Securities sold under agreements to repurchase without stated maturity dates $ 58,464 $ 53,846 0.13 % $ 56,057 $ 54,446 0.13 % Federal funds purchased 3,815 1,474 1.20 % 20,600 8,848 0.69 % FRB Discount Window — 82 1.60 % — — — % Nine Months Ended September 30 2017 2016 Maximum Month End Balance Average Balance Weighted Average Interest Rate During the Period Maximum Month End Balance Average Balance Weighted Average Interest Rate During the Period Securities sold under agreements to repurchase without stated maturity dates $ 58,464 $ 55,051 0.13 % $ 61,783 $ 57,159 0.13 % Federal funds purchased 5,965 3,280 1.13 % 20,600 8,614 0.69 % FRB Discount Window — 57 1.54 % — — — %
Summary of pledged financial instruments	We had pledged AFS securities and 1-4 family residential real estate loans in the following amounts at: September 30 December 31 Pledged to secure borrowed funds $ 416,279 $ 363,427 Pledged to secure repurchase agreements 54,996 60,918 Pledged for public deposits and for other purposes necessary or required by law 29,774 33,916 Total $ 501,049 $ 458,261 AFS securities pledged to repurchase agreements without stated maturity dates consisted of the following at: September 30 December 31 States and political subdivisions $ 4,256 $ 5,676 Mortgage-backed securities 15,419 11,383 Collateralized mortgage obligations 35,321 43,859 Total $ 54,996 $ 60,918
Schedule of derivative instruments	The following tables provide information on derivatives related to variable rate borrowings as of: September 30, 2017 Pay Rate Receive Rate Remaining Life (Years) Notional Amount Balance Sheet Location Fair Value Derivatives designated as hedging instruments Cash Flow Hedges: Interest rate swaps 1.56 % 3-Month LIBOR 3.6 $ 10,000 Other Assets $ 215 December 31, 2016 Pay Rate Receive Rate Remaining Life (Years) Notional Amount Balance Sheet Location Fair Value Derivatives designated as hedging instruments Cash Flow Hedges: Interest rate swaps 1.56 % 3-Month LIBOR 4.3 $ 10,000 Other Assets $ 248

Other Noninterest Expenses (Tab

Other Noninterest Expenses (Tables)	9 Months Ended
	Sep. 30, 2017
Other Income and Expenses [Abstract]
Summary of expenses included in other noninterest expenses	A summary of expenses included in other noninterest expenses is as follows for the: Three Months Ended Nine Months Ended 2017 2016 2017 2016 ATM and debit card fees $ 253 $ 210 $ 873 $ 627 Audit and related fees 322 319 757 664 Consulting fees 259 198 672 567 Director fees 212 207 634 630 Loan underwriting fees 237 142 546 377 Donations and community relations 190 134 488 399 FDIC insurance premiums 172 224 480 646 Marketing costs 172 101 361 359 Education and travel 143 73 332 309 Printing and supplies 110 105 320 325 Postage and freight 85 96 304 293 All other 438 486 1,427 1,692 Total other $ 2,593 $ 2,295 $ 7,194 $ 6,888

Federal Income Taxes (Tables)

Federal Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Summary of federal income tax expense	The reconciliation of the provision for federal income taxes and the amount computed at the federal statutory tax rate of 34% of income before federal income tax expense is as follows for the: Three Months Ended Nine Months Ended 2017 2016 2017 2016 Income taxes at 34% statutory rate $ 1,458 $ 1,481 $ 4,317 $ 4,036 Effect of nontaxable income Interest income on tax exempt municipal securities (452 ) (457 ) (1,361 ) (1,400 ) Earnings on corporate owned life insurance policies (60 ) (62 ) (183 ) (192 ) Effect of tax credits (186 ) (188 ) (566 ) (575 ) Other (18 ) (19 ) (54 ) (55 ) Total effect of nontaxable income (716 ) (726 ) (2,164 ) (2,222 ) Effect of nondeductible expenses 8 8 27 41 Federal income tax expense $ 750 $ 763 $ 2,180 $ 1,855

Fair Value (Tables)

Fair Value (Tables)	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Quantitative information about assets measured utilizing Level 3 fair value measurement	The table below lists the quantitative fair value information related to foreclosed assets as of: September 30, 2017 Valuation Technique Fair Value Unobservable Input Range Discount applied to collateral: Discounted value $ 240 Real Estate 20% - 30% December 31, 2016 Valuation Technique Fair Value Unobservable Input Range Discount applied to collateral: Discounted value $ 231 Real Estate 20% - 30% The following tables list the quantitative fair value information about impaired loans as of: September 30, 2017 Valuation Technique Fair Value Unobservable Input Range Discount applied to collateral: Real Estate 20% - 30% Equipment 20% - 45% Accounts receivable 50% Discounted value $16,158 Cash crop inventory 30% - 40% Other inventory 50% - 75% Liquor license 75% Furniture, fixtures & equipment 35% - 45% December 31, 2016 Valuation Technique Fair Value Unobservable Input Range Discount applied to collateral: Real Estate 20% - 30% Equipment 20% - 45% Discounted value $9,166 Cash crop inventory 30% - 40% Liquor license 75% Furniture, fixtures & equipment 45%
Carrying amount and estimated fair value of financial instruments not recorded at fair value	The carrying amount and estimated fair value of financial instruments not recorded at fair value in their entirety on a recurring basis were as follows as of: September 30, 2017 Carrying Estimated Level 1 Level 2 Level 3 ASSETS Cash and cash equivalents $ 21,067 $ 21,067 $ 21,067 $ — $ — Mortgage loans AFS 1,237 1,245 — 1,245 — Gross loans 1,077,544 1,056,912 — — 1,056,912 Less allowance for loan and lease losses 7,700 7,700 — — 7,700 Net loans 1,069,844 1,049,212 — — 1,049,212 Accrued interest receivable 7,388 7,388 7,388 — — Equity securities without readily determinable fair values (1) 23,461 N/A — — — OMSR 2,413 2,413 — 2,413 — LIABILITIES Deposits without stated maturities 791,567 791,567 791,567 — — Deposits with stated maturities 424,495 423,536 — 423,536 — Borrowed funds 367,027 367,873 — 367,873 — Accrued interest payable 633 633 633 — — December 31, 2016 Carrying Estimated Level 1 Level 2 Level 3 ASSETS Cash and cash equivalents $ 22,894 $ 22,894 $ 22,894 $ — $ — Mortgage loans AFS 1,816 1,836 — 1,836 — Gross loans 1,010,615 991,009 — — 991,009 Less allowance for loan and lease losses 7,400 7,400 — — 7,400 Net loans 1,003,215 983,609 — — 983,609 Accrued interest receivable 6,580 6,580 6,580 — — Equity securities without readily determinable fair values (1) 21,694 N/A — — — OMSR 2,306 2,306 — 2,306 — LIABILITIES Deposits without stated maturities 761,626 761,626 761,626 — — Deposits with stated maturities 433,414 430,088 — 430,088 — Borrowed funds 337,694 336,975 — 336,975 — Accrued interest payable 574 574 574 — — (1) Due to the characteristics of equity securities without readily determinable fair values, they are not disclosed under a specific fair value hierarchy. If we were to record an impairment adjustment related to these securities, such amount would be classified as a nonrecurring Level 3 fair value adjustment.
Assets and liabilities measured at fair value	The table below presents the recorded amount of assets and liabilities measured at fair value on: September 30, 2017 December 31, 2016 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Recurring items AFS securities Government-sponsored enterprises $ 232 $ — $ 232 $ — $ 10,259 $ — $ 10,259 $ — States and political subdivisions 213,457 — 213,457 — 212,919 — 212,919 — Auction rate money market preferred 3,172 — 3,172 — 2,794 — 2,794 — Preferred stocks 3,651 3,651 — — 3,425 3,425 — — Mortgage-backed securities 215,914 — 215,914 — 227,256 — 227,256 — Collateralized mortgage obligations 116,499 — 116,499 — 101,443 — 101,443 — Total AFS securities 552,925 3,651 549,274 — 558,096 3,425 554,671 — Derivative instruments 215 — 215 — 248 — 248 — Nonrecurring items Impaired loans (net of the ALLL) 16,158 — — 16,158 9,166 — — 9,166 Foreclosed assets 240 — — 240 231 — — 231 Total $ 569,538 $ 3,651 $ 549,489 $ 16,398 $ 567,741 $ 3,425 $ 554,919 $ 9,397 Percent of assets and liabilities measured at fair value 0.64 % 96.48 % 2.88 % 0.60 % 97.74 % 1.66 %

Accumulated Other Comprehensi33

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2017
Equity [Abstract]
Summary of the components of accumulated other comprehensive income	A summary of the components of unrealized holding gains on AFS securities included in OCI follows for the: Three Months Ended September 30 2017 2016 Auction Rate Money Market Preferred and Preferred Stocks All Other AFS Securities Total Auction Rate Money Market Preferred and Preferred Stocks All Other AFS Securities Total Unrealized gains (losses) arising during the period $ 63 $ (159 ) $ (96 ) $ 208 $ (2,756 ) $ (2,548 ) Reclassification adjustment for net realized (gains) losses included in net income — — — — — — Net unrealized gains (losses) 63 (159 ) (96 ) 208 (2,756 ) (2,548 ) Tax effect — 54 54 — 937 937 Unrealized gains (losses), net of tax $ 63 $ (105 ) $ (42 ) $ 208 $ (1,819 ) $ (1,611 ) Nine Months Ended September 30 2017 2016 Auction Rate Money Market Preferred and Preferred Stocks All Other AFS Securities Total Auction Rate Money Market Preferred and Preferred Stocks All Other AFS Securities Total Unrealized gains (losses) arising during the period $ 604 $ 3,547 $ 4,151 $ 568 $ 8,225 $ 8,793 Reclassification adjustment for net realized (gains) losses included in net income — (142 ) (142 ) — (245 ) (245 ) Net unrealized gains (losses) 604 3,405 4,009 568 7,980 8,548 Tax effect — (1,158 ) (1,158 ) — (2,713 ) (2,713 ) Unrealized gains (losses), net of tax $ 604 $ 2,247 $ 2,851 $ 568 $ 5,267 $ 5,835 The following table summarizes the changes in AOCI by component for the: Three Months Ended September 30 2017 2016 Unrealized Unrealized Defined Total Unrealized Unrealized Defined Total Balance, July 1 $ 2,923 $ 135 $ (2,972 ) $ 86 $ 10,982 $ (100 ) $ (3,315 ) $ 7,567 OCI before reclassifications (96 ) 11 — (85 ) (2,548 ) 91 — (2,457 ) Amounts reclassified from AOCI — — — — — — — — Subtotal (96 ) 11 — (85 ) (2,548 ) 91 — (2,457 ) Tax effect 54 (4 ) — 50 937 (31 ) — 906 OCI, net of tax (42 ) 7 — (35 ) (1,611 ) 60 — (1,551 ) Balance, September 30 $ 2,881 $ 142 $ (2,972 ) $ 51 $ 9,371 $ (40 ) $ (3,315 ) $ 6,016 Nine Months Ended September 30 2017 2016 Unrealized Unrealized Defined Total Unrealized Unrealized Defined Total Balance, January 1 $ 30 $ 164 $ (2,972 ) $ (2,778 ) $ 3,536 $ — $ (3,315 ) $ 221 OCI before reclassifications 4,151 (33 ) — 4,118 8,793 (61 ) — 8,732 Amounts reclassified from AOCI (142 ) — — (142 ) (245 ) — — (245 ) Subtotal 4,009 (33 ) — 3,976 8,548 (61 ) — 8,487 Tax effect (1,158 ) 11 — (1,147 ) (2,713 ) 21 — (2,692 ) OCI, net of tax 2,851 (22 ) — 2,829 5,835 (40 ) — 5,795 Balance, September 30 $ 2,881 $ 142 $ (2,972 ) $ 51 $ 9,371 $ (40 ) $ (3,315 ) $ 6,016

Parent Company Only Financial34

Parent Company Only Financial Information (Tables)	9 Months Ended
	Sep. 30, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Interim Condensed Balance Sheets	Interim Condensed Balance Sheets September 30 December 31 ASSETS Cash on deposit at the Bank $ 945 $ 1,297 AFS securities — 251 Investments in subsidiaries 146,138 138,549 Premises and equipment 1,961 1,991 Other assets 52,795 52,846 TOTAL ASSETS $ 201,839 $ 194,934 LIABILITIES AND SHAREHOLDERS’ EQUITY Other liabilities $ 5,376 $ 7,035 Shareholders' equity 196,463 187,899 TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY $ 201,839 $ 194,934
Interim Condensed Statements of Income	Interim Condensed Statements of Income Three Months Ended Nine Months Ended 2017 2016 2017 2016 Income Dividends from subsidiaries $ 2,900 $ 2,000 $ 7,200 $ 5,600 Interest income — 3 2 11 Management fee and other 1,660 1,680 4,901 4,962 Total income 4,560 3,683 12,103 10,573 Expenses Compensation and benefits 1,118 1,196 3,608 3,580 Occupancy and equipment 456 438 1,332 1,281 Audit and related fees 148 193 412 389 Other 556 427 1,731 1,561 Total expenses 2,278 2,254 7,083 6,811 Income before income tax benefit and equity in undistributed earnings of subsidiaries 2,282 1,429 5,020 3,762 Federal income tax benefit 209 199 737 616 Income before equity in undistributed earnings of subsidiaries 2,491 1,628 5,757 4,378 Undistributed earnings of subsidiaries 1,045 1,965 4,759 5,639 Net income $ 3,536 $ 3,593 $ 10,516 $ 10,017
Interim Condensed Statements of Cash Flows	Interim Condensed Statements of Cash Flows Nine Months Ended 2017 2016 Operating activities Net income $ 10,516 $ 10,017 Adjustments to reconcile net income to cash provided by operations Undistributed earnings of subsidiaries (4,759 ) (5,639 ) Undistributed earnings of equity securities without readily determinable fair values 33 (287 ) Share-based payment awards under equity compensation plan 502 443 Depreciation 116 117 Changes in operating assets and liabilities which provided (used) cash Other assets 19 177 Accrued interest and other liabilities (1,659 ) (2,575 ) Net cash provided by (used in) operating activities 4,768 2,253 Investing activities Maturities, calls, principal payments, and sales of AFS securities 249 — Purchases of premises and equipment (86 ) (86 ) Net cash provided by (used in) investing activities 163 (86 ) Financing activities Cash dividends paid on common stock (5,950 ) (5,697 ) Proceeds from the issuance of common stock 4,999 3,683 Common stock repurchased (4,005 ) (2,749 ) Common stock purchased for deferred compensation obligations (327 ) (279 ) Net cash provided by (used in) financing activities (5,283 ) (5,042 ) Increase (decrease) in cash and cash equivalents (352 ) (2,875 ) Cash and cash equivalents at beginning of period 1,297 4,125 Cash and cash equivalents at end of period $ 945 $ 1,250

Computation of Earnings Per C35

Computation of Earnings Per Common Share (Schedule of Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share [Abstract]
Average number of common shares outstanding for basic calculation		7,848,317	7,824,751	7,839,172	7,813,084
Average potential effect of common shares in the Directors Plan	[1]	192,572	186,667	191,548	184,996
Average number of common shares outstanding used to calculate diluted earnings per common share		8,040,889	8,011,418	8,030,720	7,998,080
Net income		$ 3,536	$ 3,593	$ 10,516	$ 10,017
Basic (in dollars per share)		$ 0.45	$ 0.46	$ 1.34	$ 1.28
Diluted (in dollars per share)		$ 0.44	$ 0.45	$ 1.31	$ 1.25
[1]	Exclusive of shares held in the Rabbi Trust

AFS Securities (Amortized cost

AFS Securities (Amortized cost and fair value of AFS securities, with gross unrealized gains and losses) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 548,468	$ 557,648
Gross Unrealized Gains	7,057	5,446
Gross Unrealized Losses	2,600	4,998
AFS securities	552,925	558,096
Government sponsored enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	231	10,258
Gross Unrealized Gains	1	3
Gross Unrealized Losses	0	2
AFS securities	232	10,259
States and political subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	207,874	208,977
Gross Unrealized Gains	5,596	4,262
Gross Unrealized Losses	13	320
AFS securities	213,457	212,919
Auction rate money market preferred [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,200	3,200
Gross Unrealized Gains	0	0
Gross Unrealized Losses	28	406
AFS securities	3,172	2,794
Preferred stocks [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,800	3,800
Gross Unrealized Gains	0	0
Gross Unrealized Losses	149	375
AFS securities	3,651	3,425
Mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	216,684	229,593
Gross Unrealized Gains	860	581
Gross Unrealized Losses	1,630	2,918
AFS securities	215,914	227,256
Collateralized mortgage obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	116,679	101,820
Gross Unrealized Gains	600	600
Gross Unrealized Losses	780	977
AFS securities	$ 116,499	$ 101,443

AFS Securities (Amortized cos37

AFS Securities (Amortized cost and fair value of AFS securities by contractual maturity) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract]
Maturing, Due in One Year or Less	$ 25,689
Maturing, After One Year But Within Five Years	74,041
Maturing, After Five Years But Within Ten Years	75,598
Maturing, After Ten Years	32,777
Securities With Variable Monthly Payments or Noncontractual Maturities	340,363
Amortized Cost	548,468	$ 557,648
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Maturing, Due in One Year or Less, Fair value	25,746
Maturing, After One Year But Within Five Years, Fair value	76,105
Maturing, After Five Years But Within Ten Years, Fair value	78,383
Maturing, After Ten Years, Fair value	33,455
Securities With Variable Monthly Payments or Noncontractual Maturities, Fair value	339,236
Total, Fair value	552,925	558,096
Government sponsored enterprises [Member]
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract]
Maturing, Due in One Year or Less	0
Maturing, After One Year But Within Five Years	231
Maturing, After Five Years But Within Ten Years	0
Maturing, After Ten Years	0
Securities With Variable Monthly Payments or Noncontractual Maturities	0
Amortized Cost	231	10,258
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Total, Fair value	232	10,259
States and political subdivisions [Member]
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract]
Maturing, Due in One Year or Less	25,689
Maturing, After One Year But Within Five Years	73,810
Maturing, After Five Years But Within Ten Years	75,598
Maturing, After Ten Years	32,777
Securities With Variable Monthly Payments or Noncontractual Maturities	0
Amortized Cost	207,874	208,977
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Total, Fair value	213,457	212,919
Auction rate money market preferred [Member]
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract]
Maturing, Due in One Year or Less	0
Maturing, After One Year But Within Five Years	0
Maturing, After Five Years But Within Ten Years	0
Maturing, After Ten Years	0
Securities With Variable Monthly Payments or Noncontractual Maturities	3,200
Amortized Cost	3,200	3,200
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Total, Fair value	3,172	2,794
Preferred stocks [Member]
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract]
Maturing, Due in One Year or Less	0
Maturing, After One Year But Within Five Years	0
Maturing, After Five Years But Within Ten Years	0
Maturing, After Ten Years	0
Securities With Variable Monthly Payments or Noncontractual Maturities	3,800
Amortized Cost	3,800	3,800
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Total, Fair value	3,651	3,425
Mortgage-backed securities [Member]
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract]
Maturing, Due in One Year or Less	0
Maturing, After One Year But Within Five Years	0
Maturing, After Five Years But Within Ten Years	0
Maturing, After Ten Years	0
Securities With Variable Monthly Payments or Noncontractual Maturities	216,684
Amortized Cost	216,684	229,593
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Total, Fair value	215,914	227,256
Collateralized mortgage obligations [Member]
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract]
Maturing, Due in One Year or Less	0
Maturing, After One Year But Within Five Years	0
Maturing, After Five Years But Within Ten Years	0
Maturing, After Ten Years	0
Securities With Variable Monthly Payments or Noncontractual Maturities	116,679
Amortized Cost	116,679	101,820
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Total, Fair value	$ 116,499	$ 101,443

AFS Securities (Activity relate

AFS Securities (Activity related to sales of AFS securities) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales of AFS of securities	$ 0	$ 0	$ 12,827	$ 35,664
Gross realized gains (losses)	0	0	142	245
Applicable income tax expense	$ 0	$ 0	$ 48	$ 83

AFS Securities (AFS securities

AFS Securities (AFS securities with gross unrealized losses) (Details) $ in Thousands	Sep. 30, 2017USD ($)Securities	Dec. 31, 2016USD ($)Securities
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses, Less Than Twelve Months	$ 1,620	$ 3,859
Fair Value, Less Than Twelve Months	143,519	258,414
Gross Unrealized Losses, Twelve Months or More	980	1,139
Fair Value, Twelve Months or More	35,124	17,955
Total Unrealized Losses	$ 2,600	$ 4,998
Number of Securities in an unrealized loss position, Less Than Twelve Months, Fair Value | Securities	35	104
Number of Securities in an unrealized loss position, Twelve Months or More, Fair Value | Securities	13	9
Number of Securities in an unrealized loss position, Total Unrealized Losses | Securities	48	113
Government sponsored enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses, Less Than Twelve Months	$ 0	$ 2
Fair Value, Less Than Twelve Months	0	9,936
Gross Unrealized Losses, Twelve Months or More	0	0
Fair Value, Twelve Months or More	0	0
Total Unrealized Losses	0	2
States and political subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses, Less Than Twelve Months	12	311
Fair Value, Less Than Twelve Months	3,321	21,800
Gross Unrealized Losses, Twelve Months or More	1	9
Fair Value, Twelve Months or More	221	355
Total Unrealized Losses	13	320
Auction rate money market preferred [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses, Less Than Twelve Months	0	0
Fair Value, Less Than Twelve Months	0	0
Gross Unrealized Losses, Twelve Months or More	28	406
Fair Value, Twelve Months or More	3,172	2,794
Total Unrealized Losses	28	406
Preferred stocks [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses, Less Than Twelve Months	0	0
Fair Value, Less Than Twelve Months	0	0
Gross Unrealized Losses, Twelve Months or More	149	375
Fair Value, Twelve Months or More	3,651	3,425
Total Unrealized Losses	149	375
Mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses, Less Than Twelve Months	1,277	2,918
Fair Value, Less Than Twelve Months	106,229	175,212
Gross Unrealized Losses, Twelve Months or More	353	0
Fair Value, Twelve Months or More	12,777	0
Total Unrealized Losses	1,630	2,918
Collateralized mortgage obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses, Less Than Twelve Months	331	628
Fair Value, Less Than Twelve Months	33,969	51,466
Gross Unrealized Losses, Twelve Months or More	449	349
Fair Value, Twelve Months or More	15,303	11,381
Total Unrealized Losses	$ 780	$ 977

AFS Securities Narratives New (

AFS Securities Narratives New (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Available-for-sale Securities [Member] | Auction Rate Securities [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, No Previous Impairment	$ 0	$ 770

Loans and ALLL (Narrative) (Det

Loans and ALLL (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017USD ($)NumberofLoan	Sep. 30, 2016NumberofLoan	Sep. 30, 2017USD ($)loanNumberofLoan	Sep. 30, 2016NumberofLoan	Dec. 31, 2016USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold period of continuous performance to return loans to accrual status			6 months
Migration analysis of loan portfolio period			5 years
Advance in connection with impaired loans	$ 125		$ 125		$ 117
Number of loans restructured through the forbearance of principal or accrued interest | NumberofLoan	0	0	0	0
Loans in default	0	0	0	0
Minimum [Member] | 4 - Low satisfactory [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Delinquency period			10 days
Minimum [Member] | 5 - Special mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Delinquency period			30 days
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, amortization term			30 years
Maximum [Member] | 4 - Low satisfactory [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Delinquency period			30 days
Maximum [Member] | 5 - Special mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Delinquency period			60 days
Commercial, Agricultural, and Residential Portfolio Segments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of days past due (or more), accrual of interest discontinued			90 days
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum days of consumer loan charged off			180 days
Total Consumer [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, amortization term			12 years
Commercial And Agricultural Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum percentage of loan			0.80
Commercial And Agricultural Portfolio Segment [Member] | Customer Concentration Risk [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum amount of loans			$ 15,000
Commercial Advances to Mortgage Brokers Segment [Member] | Customer Concentration Risk [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum amount of loans			$ 30,000
Commercial Advances to Mortgage Brokers Segment [Member] | Customer Concentration Risk [Member] | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan advance maturity period			20 days
Commercial Advances to Mortgage Brokers Segment [Member] | Customer Concentration Risk [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan advance maturity period			30 days
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum percentage of loan			1
Maximum percentage of principal, interest, taxes and hazard insurance on property over gross income			0.28
Maximum percentage of debt servicing over gross income			0.40
Maximum amount without corporation approval			$ 500
Residential, Privately Insured, Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum percentage of loan			0.80

Loans and ALLL (Summary of chan

Loans and ALLL (Summary of changes in ALLL by segments) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Summary of changes in the ALLL and the recorded investment in loans by segments
Allowance for loan losses, Beginning Balance	$ 7,600	$ 7,600	$ 7,400	$ 7,400
Allowance for loan losses, Charge-offs	(157)	(131)	(370)	(680)
Allowance for loan losses, Recoveries	208	314	585	895
Allowance for loan losses, Provision for loan losses	49	17	85	185
Allowance for loan losses, Ending Balance	7,700	7,800	7,700	7,800
Commercial [Member]
Summary of changes in the ALLL and the recorded investment in loans by segments
Allowance for loan losses, Beginning Balance	1,978	2,119	1,814	2,171
Allowance for loan losses, Charge-offs	(8)	0	(60)	(48)
Allowance for loan losses, Recoveries	134	118	322	396
Allowance for loan losses, Provision for loan losses	65	(367)	93	(649)
Allowance for loan losses, Ending Balance	2,169	1,870	2,169	1,870
Agricultural [Member]
Summary of changes in the ALLL and the recorded investment in loans by segments
Allowance for loan losses, Beginning Balance	475	534	884	329
Allowance for loan losses, Charge-offs	0	0	0	0
Allowance for loan losses, Recoveries	0	0	0	92
Allowance for loan losses, Provision for loan losses	(40)	612	(449)	725
Allowance for loan losses, Ending Balance	435	1,146	435	1,146
Residential Real Estate [Member]
Summary of changes in the ALLL and the recorded investment in loans by segments
Allowance for loan losses, Beginning Balance	2,598	3,130	2,664	3,330
Allowance for loan losses, Charge-offs	(77)	(57)	(120)	(426)
Allowance for loan losses, Recoveries	41	153	140	248
Allowance for loan losses, Provision for loan losses	(71)	(452)	(193)	(378)
Allowance for loan losses, Ending Balance	2,491	2,774	2,491	2,774
Consumer Portfolio Segment [Member]
Summary of changes in the ALLL and the recorded investment in loans by segments
Allowance for loan losses, Beginning Balance	583	541	624	522
Allowance for loan losses, Charge-offs	(72)	(74)	(190)	(206)
Allowance for loan losses, Recoveries	33	43	123	159
Allowance for loan losses, Provision for loan losses	89	94	76	129
Allowance for loan losses, Ending Balance	633	604	633	604
Unallocated [Member]
Summary of changes in the ALLL and the recorded investment in loans by segments
Allowance for loan losses, Beginning Balance	1,966	1,276	1,414	1,048
Allowance for loan losses, Charge-offs	0	0	0	0
Allowance for loan losses, Recoveries	0	0	0	0
Allowance for loan losses, Provision for loan losses	6	130	558	358
Allowance for loan losses, Ending Balance	$ 1,972	$ 1,406	$ 1,972	$ 1,406

Loans and ALLL (Summary of reco

Loans and ALLL (Summary of recorded investment in loans by segments) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, ALLL	$ 2,551		$ 2,371
Collectively evaluated for impairment, ALLL	5,149		5,029
Total, ALLL	7,700	$ 7,600	7,400	$ 7,800	$ 7,600	$ 7,400
Individually evaluated for impairment, Loans	27,945		22,068
Collectively evaluated for impairment, Loans	1,049,599		988,547
Total	1,077,544		1,010,615
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, ALLL	933		741
Collectively evaluated for impairment, ALLL	1,236		1,073
Total, ALLL	2,169	1,978	1,814	1,870	2,119	2,171
Individually evaluated for impairment, Loans	8,525		7,859
Collectively evaluated for impairment, Loans	611,610		567,805
Total	620,135		575,664
Agricultural [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, ALLL	0		1
Collectively evaluated for impairment, ALLL	435		883
Total, ALLL	435	475	884	1,146	534	329
Individually evaluated for impairment, Loans	10,976		5,545
Collectively evaluated for impairment, Loans	122,022		120,947
Total	132,998		126,492
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, ALLL	1,618		1,629
Collectively evaluated for impairment, ALLL	873		1,035
Total, ALLL	2,491	2,598	2,664	2,774	3,130	3,330
Individually evaluated for impairment, Loans	8,426		8,638
Collectively evaluated for impairment, Loans	263,054		257,412
Total	271,480		266,050
Total Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, ALLL	0		0
Collectively evaluated for impairment, ALLL	633		624
Total, ALLL	633	583	624	604	541	522
Individually evaluated for impairment, Loans	18		26
Collectively evaluated for impairment, Loans	52,913		42,383
Total	52,931		42,409
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, ALLL	0		0
Collectively evaluated for impairment, ALLL	1,972		1,414
Total, ALLL	$ 1,972	$ 1,966	$ 1,414	$ 1,406	$ 1,276	$ 1,048

Loans and ALLL (Credit quality

Loans and ALLL (Credit quality indicators for commercial and agricultural credit exposures) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Total	$ 1,077,544	$ 1,010,615
Total commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	620,135	575,664
Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	462,920	424,381
Commercial other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	134,381	131,595
Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	22,834	19,688
Total agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	132,998	126,492
Agricultural real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	89,288	83,837
Agricultural other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	43,710	42,655
Commercial And Agricultural Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	753,133	702,156
1 - Excellent [Member] | Total commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	252	466
1 - Excellent [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	25	28
1 - Excellent [Member] | Commercial other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	227	438
1 - Excellent [Member] | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
1 - Excellent [Member] | Total agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
1 - Excellent [Member] | Agricultural real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
1 - Excellent [Member] | Agricultural other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
1 - Excellent [Member] | Commercial And Agricultural Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	252	466
2 - High quality [Member] | Total commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	17,210	43,600
2 - High quality [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	6,736	11,821
2 - High quality [Member] | Commercial other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	10,474	12,091
2 - High quality [Member] | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	19,688
2 - High quality [Member] | Total agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	4,089	4,992
2 - High quality [Member] | Agricultural real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	3,088	3,566
2 - High quality [Member] | Agricultural other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	1,001	1,426
2 - High quality [Member] | Commercial And Agricultural Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	21,299	48,592
3 - High satisfactory [Member] | Total commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	182,274	145,511
3 - High satisfactory [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	117,596	103,529
3 - High satisfactory [Member] | Commercial other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	41,844	41,982
3 - High satisfactory [Member] | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	22,834	0
3 - High satisfactory [Member] | Total agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	31,565	33,045
3 - High satisfactory [Member] | Agricultural real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	21,743	21,657
3 - High satisfactory [Member] | Agricultural other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	9,822	11,388
3 - High satisfactory [Member] | Commercial And Agricultural Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	213,839	178,556
4 - Low satisfactory [Member] | Total commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	405,167	373,749
4 - Low satisfactory [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	327,648	299,317
4 - Low satisfactory [Member] | Commercial other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	77,519	74,432
4 - Low satisfactory [Member] | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
4 - Low satisfactory [Member] | Total agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	70,265	71,670
4 - Low satisfactory [Member] | Agricultural real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	48,902	48,955
4 - Low satisfactory [Member] | Agricultural other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	21,363	22,715
4 - Low satisfactory [Member] | Commercial And Agricultural Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	475,432	445,419
5 - Special mention [Member] | Total commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	6,314	4,959
5 - Special mention [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	4,402	3,781
5 - Special mention [Member] | Commercial other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	1,912	1,178
5 - Special mention [Member] | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
5 - Special mention [Member] | Total agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	20,321	9,094
5 - Special mention [Member] | Agricultural real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	11,206	6,009
5 - Special mention [Member] | Agricultural other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	9,115	3,085
5 - Special mention [Member] | Commercial And Agricultural Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	26,635	14,053
6 - Substandard [Member] | Total commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	8,705	7,375
6 - Substandard [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	6,303	5,901
6 - Substandard [Member] | Commercial other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	2,402	1,474
6 - Substandard [Member] | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
6 - Substandard [Member] | Total agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	5,773	7,158
6 - Substandard [Member] | Agricultural real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	3,861	3,650
6 - Substandard [Member] | Agricultural other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	1,912	3,508
6 - Substandard [Member] | Commercial And Agricultural Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	14,478	14,533
7 - Vulnerable [Member] | Total commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	213	4
7 - Vulnerable [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	210	4
7 - Vulnerable [Member] | Commercial other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	3	0
7 - Vulnerable [Member] | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
7 - Vulnerable [Member] | Total agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	985	533
7 - Vulnerable [Member] | Agricultural real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	488	0
7 - Vulnerable [Member] | Agricultural other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	497	533
7 - Vulnerable [Member] | Commercial And Agricultural Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	1,198	537
8 - Doubtful [Member] | Total commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
8 - Doubtful [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
8 - Doubtful [Member] | Commercial other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
8 - Doubtful [Member] | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
8 - Doubtful [Member] | Total agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
8 - Doubtful [Member] | Agricultural real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
8 - Doubtful [Member] | Agricultural other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	0	0
8 - Doubtful [Member] | Commercial And Agricultural Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	$ 0	$ 0

Loans and ALLL (Past due and cu

Loans and ALLL (Past due and current loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	$ 646	$ 633
Nonaccrual	1,605	1,060
Total Past Due and Nonaccrual	5,853	7,429
Current	1,071,691	1,003,186
Total	1,077,544	1,010,615
Total commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	35
Nonaccrual	214	4
Total Past Due and Nonaccrual	1,532	3,347
Current	618,603	572,317
Total	620,135	575,664
Commercial real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	35
Nonaccrual	211	4
Total Past Due and Nonaccrual	677	1,619
Current	462,243	422,762
Total	462,920	424,381
Commercial other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Nonaccrual	3	0
Total Past Due and Nonaccrual	855	1,728
Current	133,526	129,867
Total	134,381	131,595
Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Nonaccrual	0	0
Total Past Due and Nonaccrual	0	0
Current	22,834	19,688
Total	22,834	19,688
Total agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	590	508
Nonaccrual	985	533
Total Past Due and Nonaccrual	2,068	1,251
Current	130,930	125,241
Total	132,998	126,492
Agricultural real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	590	508
Nonaccrual	488	0
Total Past Due and Nonaccrual	1,078	699
Current	88,210	83,138
Total	89,288	83,837
Agricultural other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Nonaccrual	497	533
Total Past Due and Nonaccrual	990	552
Current	42,720	42,103
Total	43,710	42,655
Total residential real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	56	90
Nonaccrual	406	523
Total Past Due and Nonaccrual	2,201	2,716
Current	269,279	263,334
Total	271,480	266,050
Residential real estate senior liens [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	56	22
Nonaccrual	383	498
Total Past Due and Nonaccrual	1,953	2,332
Current	225,215	216,681
Total	227,168	219,013
Residential real estate junior liens [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Nonaccrual	23	25
Total Past Due and Nonaccrual	31	40
Current	7,348	8,317
Total	7,379	8,357
Residential real estate home equity lines of credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	68
Nonaccrual	0	0
Total Past Due and Nonaccrual	217	344
Current	36,716	38,336
Total	36,933	38,680
Total Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Nonaccrual	0	0
Total Past Due and Nonaccrual	52	115
Current	52,879	42,294
Total	52,931	42,409
Consumer secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Nonaccrual	0	0
Total Past Due and Nonaccrual	50	110
Current	49,027	38,582
Total	49,077	38,692
Consumer Unsecured Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Nonaccrual	0	0
Total Past Due and Nonaccrual	2	5
Current	3,852	3,712
Total	3,854	3,717
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	3,559	5,521
Financing Receivables, 30 to 59 Days Past Due [Member] | Total commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,289	3,273
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	466	1,580
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	823	1,693
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Total agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	490	210
Financing Receivables, 30 to 59 Days Past Due [Member] | Agricultural real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	191
Financing Receivables, 30 to 59 Days Past Due [Member] | Agricultural other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	490	19
Financing Receivables, 30 to 59 Days Past Due [Member] | Total residential real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,739	1,923
Financing Receivables, 30 to 59 Days Past Due [Member] | Residential real estate senior liens [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,514	1,638
Financing Receivables, 30 to 59 Days Past Due [Member] | Residential real estate junior liens [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	8	15
Financing Receivables, 30 to 59 Days Past Due [Member] | Residential real estate home equity lines of credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	217	270
Financing Receivables, 30 to 59 Days Past Due [Member] | Total Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	41	115
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	39	110
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer Unsecured Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	2	5
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	43	215
Financing Receivables, 60 to 89 Days Past Due [Member] | Total commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	29	35
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	29	35
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Total agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	3	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Agricultural real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Agricultural other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	3	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Total residential real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	180
Financing Receivables, 60 to 89 Days Past Due [Member] | Residential real estate senior liens [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	174
Financing Receivables, 60 to 89 Days Past Due [Member] | Residential real estate junior liens [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Residential real estate home equity lines of credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	6
Financing Receivables, 60 to 89 Days Past Due [Member] | Total Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	11	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	11	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer Unsecured Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	$ 0	$ 0

Loans and ALLL (Summary of info

Loans and ALLL (Summary of information pertaining to impaired loans) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Outstanding Balance	$ 14,791		$ 14,791		$ 15,839
Impaired loans without a valuation allowance, Outstanding Balance	13,154		13,154		6,229
Impaired loans, Outstanding Balance	27,945		27,945		22,068
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a valuation allowance, Unpaid Principal Balance	15,540		15,540		16,615
Impaired loans without a valuation allowance, Unpaid Principal Balance	13,528		13,528		6,553
Impaired loans, Unpaid Principal Balance	29,068		29,068		23,168
Impaired loans, Valuation Allowance	2,551		2,551		2,371
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Average Outstanding Balance	14,746	$ 15,694	14,627	$ 15,780
Impaired loans without a valuation allowance, Average Outstanding Balance	12,795	5,042	10,018	5,266
Impaired loans, Average Outstanding Balance	27,541	20,736	24,645	21,046
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a valuation allowance, Interest Income Recognized	176	182	547	551
Impaired loans without a valuation allowance, Interest Income Recognized	175	70	407	235
Impaired loans, Interest Income Recognized	351	252	954	786
Total commercial [Member]
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans, Outstanding Balance	8,525		8,525		7,859
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans, Unpaid Principal Balance	8,718		8,718		8,064
Impaired loans, Valuation Allowance	933		933		741
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans, Average Outstanding Balance	7,944	7,217	7,720	7,133
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans, Interest Income Recognized	129	104	389	327
Commercial real estate [Member]
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Outstanding Balance	4,209		4,209		5,811
Impaired loans without a valuation allowance, Outstanding Balance	1,988		1,988		604
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a valuation allowance, Unpaid Principal Balance	4,328		4,328		5,992
Impaired loans without a valuation allowance, Unpaid Principal Balance	2,062		2,062		617
Impaired loans, Valuation Allowance	766		766		716
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Average Outstanding Balance	4,636	5,699	4,765	5,748
Impaired loans without a valuation allowance, Average Outstanding Balance	1,546	705	1,483	995
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a valuation allowance, Interest Income Recognized	68	90	225	259
Impaired loans without a valuation allowance, Interest Income Recognized	31	10	83	57
Commercial other [Member]
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Outstanding Balance	2,239		2,239		1,358
Impaired loans without a valuation allowance, Outstanding Balance	89		89		86
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a valuation allowance, Unpaid Principal Balance	2,239		2,239		1,358
Impaired loans without a valuation allowance, Unpaid Principal Balance	89		89		97
Impaired loans, Valuation Allowance	167		167		25
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Average Outstanding Balance	1,669	746	1,363	298
Impaired loans without a valuation allowance, Average Outstanding Balance	93	67	109	92
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a valuation allowance, Interest Income Recognized	28	2	75	5
Impaired loans without a valuation allowance, Interest Income Recognized	2	2	6	6
Total agricultural [Member]
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans, Outstanding Balance	10,976		10,976		5,545
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans, Unpaid Principal Balance	10,976		10,976		5,545
Impaired loans, Valuation Allowance	0		0		1
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans, Average Outstanding Balance	11,051	4,375	8,311	4,197
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans, Interest Income Recognized	137	58	303	164
Agricultural real estate [Member]
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Outstanding Balance	0		0		0
Impaired loans without a valuation allowance, Outstanding Balance	7,834		7,834		4,037
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a valuation allowance, Unpaid Principal Balance	0		0		0
Impaired loans without a valuation allowance, Unpaid Principal Balance	7,834		7,834		4,037
Impaired loans, Valuation Allowance	0		0		0
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Average Outstanding Balance	0	181	0	91
Impaired loans without a valuation allowance, Average Outstanding Balance	7,830	3,360	5,936	3,454
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a valuation allowance, Interest Income Recognized	0	4	0	6
Impaired loans without a valuation allowance, Interest Income Recognized	98	42	218	130
Agricultural other [Member]
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Outstanding Balance	0		0		134
Impaired loans without a valuation allowance, Outstanding Balance	3,142		3,142		1,374
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a valuation allowance, Unpaid Principal Balance	0		0		134
Impaired loans without a valuation allowance, Unpaid Principal Balance	3,142		3,142		1,374
Impaired loans, Valuation Allowance	0		0		1
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Average Outstanding Balance	0	67	22	78
Impaired loans without a valuation allowance, Average Outstanding Balance	3,221	767	2,353	574
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a valuation allowance, Interest Income Recognized	0	1	0	1
Impaired loans without a valuation allowance, Interest Income Recognized	39	11	85	27
Total residential real estate [Member]
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans, Outstanding Balance	8,426		8,426		8,638
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans, Unpaid Principal Balance	9,356		9,356		9,533
Impaired loans, Valuation Allowance	1,618		1,618		1,629
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans, Average Outstanding Balance	8,527	9,113	8,592	9,683
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans, Interest Income Recognized	85	89	262	292
Residential real estate senior liens [Member]
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Outstanding Balance	8,273		8,273		8,464
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a valuation allowance, Unpaid Principal Balance	8,903		8,903		9,049
Impaired loans, Valuation Allowance	1,605		1,605		1,615
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Average Outstanding Balance	8,333	8,896	8,379	9,439
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a valuation allowance, Interest Income Recognized	79	85	245	278
Residential real estate junior liens [Member]
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Outstanding Balance	70		70		72
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a valuation allowance, Unpaid Principal Balance	70		70		82
Impaired loans, Valuation Allowance	13		13		14
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Average Outstanding Balance	73	105	75	126
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a valuation allowance, Interest Income Recognized	1	0	2	2
Residential real estate home equity lines of credit [Member]
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Outstanding Balance	0		0		0
Impaired loans without a valuation allowance, Outstanding Balance	83		83		102
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a valuation allowance, Unpaid Principal Balance	0		0		0
Impaired loans without a valuation allowance, Unpaid Principal Balance	383		383		402
Impaired loans, Valuation Allowance	0		0		0
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Average Outstanding Balance	35	0	23	0
Impaired loans without a valuation allowance, Average Outstanding Balance	86	112	115	118
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a valuation allowance, Interest Income Recognized	0	0	0	0
Impaired loans without a valuation allowance, Interest Income Recognized	5	4	15	12
Total Consumer [Member]
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans, Outstanding Balance	18		18		26
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans, Unpaid Principal Balance	18		18		26
Impaired loans, Valuation Allowance	0		0		0
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans, Average Outstanding Balance	19	31	22	33
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans, Interest Income Recognized	0	1	0	3
Consumer secured [Member]
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Outstanding Balance	0		0		0
Impaired loans without a valuation allowance, Outstanding Balance	18		18		26
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a valuation allowance, Unpaid Principal Balance	0		0		0
Impaired loans without a valuation allowance, Unpaid Principal Balance	18		18		26
Impaired loans, Valuation Allowance	0		0		$ 0
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a valuation allowance, Average Outstanding Balance	0	0	0	0
Impaired loans without a valuation allowance, Average Outstanding Balance	19	31	22	33
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a valuation allowance, Interest Income Recognized	0	0	0	0
Impaired loans without a valuation allowance, Interest Income Recognized	$ 0	$ 1	$ 0	$ 3

Loans and ALLL (Summary of in47

Loans and ALLL (Summary of information pertaining to TDRs) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017USD ($)loan	Sep. 30, 2016USD ($)loan	Sep. 30, 2017USD ($)loan	Sep. 30, 2016USD ($)loan
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	5	3	19	9
Pre-Modification Recorded Investment	$ 1,564	$ 1,634	$ 7,585	$ 1,863
Post-Modification Recorded Investment	$ 1,564	$ 1,634	$ 7,585	$ 1,863
Interest Rate Below Market Reduction [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	0	1	5	3
Pre-Modification Recorded Investment	$ 0	$ 14	$ 1,357	$ 40
Below Market Interest Rate and Extension of Amortization Period [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	5	2	14	6
Pre-Modification Recorded Investment	$ 1,564	$ 1,620	$ 6,228	$ 1,823
Commercial other [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	3	1	6	1
Pre-Modification Recorded Investment	$ 1,385	$ 1,315	$ 1,698	$ 1,315
Post-Modification Recorded Investment	$ 1,385	$ 1,315	$ 1,698	$ 1,315
Commercial other [Member] | Interest Rate Below Market Reduction [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	0	0	0	0
Pre-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
Commercial other [Member] | Below Market Interest Rate and Extension of Amortization Period [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	3	1	6	1
Pre-Modification Recorded Investment	$ 1,385	$ 1,315	$ 1,698	$ 1,315
Agricultural other [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	0	2	7	5
Pre-Modification Recorded Investment	$ 0	$ 319	$ 5,445	$ 520
Post-Modification Recorded Investment	$ 0	$ 319	$ 5,445	$ 520
Agricultural other [Member] | Interest Rate Below Market Reduction [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	0	1	4	1
Pre-Modification Recorded Investment	$ 0	$ 14	$ 1,349	$ 14
Agricultural other [Member] | Below Market Interest Rate and Extension of Amortization Period [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	0	1	3	4
Pre-Modification Recorded Investment	$ 0	$ 305	$ 4,096	$ 506
Residential real estate senior liens [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	2	0	5	2
Pre-Modification Recorded Investment	$ 179	$ 0	$ 434	$ 26
Post-Modification Recorded Investment	$ 179	$ 0	$ 434	$ 26
Residential real estate senior liens [Member] | Interest Rate Below Market Reduction [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	0	0	0	2
Pre-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 26
Residential real estate senior liens [Member] | Below Market Interest Rate and Extension of Amortization Period [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	2	0	5	0
Pre-Modification Recorded Investment	$ 179	$ 0	$ 434	$ 0
Residential real estate junior liens [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	0	0	1	0
Pre-Modification Recorded Investment	$ 0	$ 0	$ 8	$ 0
Post-Modification Recorded Investment	$ 0	$ 0	$ 8	$ 0
Residential real estate junior liens [Member] | Interest Rate Below Market Reduction [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	0	0	1	0
Pre-Modification Recorded Investment	$ 0	$ 0	$ 8	$ 0
Residential real estate junior liens [Member] | Below Market Interest Rate and Extension of Amortization Period [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	0	0	0	0
Pre-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
Total residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	2	0	6	2
Pre-Modification Recorded Investment	$ 179	$ 0	$ 442	$ 26
Post-Modification Recorded Investment	$ 179	$ 0	$ 442	$ 26
Total residential real estate [Member] | Interest Rate Below Market Reduction [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	0	0	1	2
Pre-Modification Recorded Investment	$ 0	$ 0	$ 8	$ 26
Total residential real estate [Member] | Below Market Interest Rate and Extension of Amortization Period [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	2	0	5	0
Pre-Modification Recorded Investment	$ 179	$ 0	$ 434	$ 0
Consumer Unsecured Financing Receivable [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	0	0	0	1
Pre-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 2
Post-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 2
Consumer Unsecured Financing Receivable [Member] | Interest Rate Below Market Reduction [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	0	0	0	0
Pre-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
Consumer Unsecured Financing Receivable [Member] | Below Market Interest Rate and Extension of Amortization Period [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	0	0	0	1
Pre-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 2

Loans and ALLL (Summary of TDR

Loans and ALLL (Summary of TDR loan balances) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Receivables [Abstract]
Troubled debt restructurings	$ 27,259	$ 21,382

Equity Securities Without Rea49

Equity Securities Without Readily Determinable Fair Values (Equity securities without readily determinable fair values) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Equity Method And Other Investments [Abstract]
FHLB Stock	$ 13,700	$ 11,900
FRB Stock	1,999	1,999
Other	334	334
Total	23,461	21,694
Investment in Corporate Settlement Solutions [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 7,428	$ 7,461

Foreclosed Assets (Summary of F

Foreclosed Assets (Summary of Foreclosed Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Banking and Thrift [Abstract]
Consumer mortgage loans collateralized by residential real estate foreclosed as a result of obtaining physical possession	$ 20		$ 18
All other foreclosed assets	220		213
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 240	$ 229	$ 231	$ 284	$ 249	$ 421

Foreclosed Assets (Foreclosed A

Foreclosed Assets (Foreclosed Assets Rollforward) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Banking and Thrift [Abstract]
Beginning Balance	$ 229	$ 249	$ 231	$ 421
Properties Transferred	118	95	214	211
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Valuation Adjustments	2	0	2	0
Proceeds from sale	(105)	(60)	(203)	(348)
Ending Balance	$ 240	$ 284	$ 240	$ 284

Foreclosed Assets (Narrative) (

Foreclosed Assets (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Schedule of Foreclosed Assets [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 240	$ 284	$ 240	$ 284	$ 229	$ 231	$ 249	$ 421
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Additions	118	95	214	211
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Valuation Adjustments	(2)	0	(2)	0
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Disposals	(105)	$ (60)	(203)	$ (348)
Consumer Portfolio Segment [Member]
Schedule of Foreclosed Assets [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	$ 260		$ 260			$ 18

Borrowed Funds (Borrowed funds

Borrowed Funds (Borrowed funds obligations) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Schedule of Debt [Line Items]
Borrowed funds	$ 367,027		$ 367,027		$ 337,694
Borrowed funds, Rate	1.57%		1.57%		1.50%
Securities Sold under Agreements to Repurchase [Member]
Schedule of Debt [Line Items]
Short-term Debt, Maximum Month-end Outstanding Amount	$ 58,464	$ 56,057	$ 58,464	$ 61,783
Borrowed funds	$ 54,977		$ 54,977		$ 60,894
Borrowed funds, Rate	0.12%		0.12%		0.13%
Federal Funds Purchased [Member]
Schedule of Debt [Line Items]
Short-term Debt, Maximum Month-end Outstanding Amount	$ 3,815	20,600	$ 5,965	20,600
Borrowed funds	$ 2,050		$ 2,050		$ 6,800
Borrowed funds, Rate	1.39%		1.39%		1.00%
Federal Reserve Bank Advances [Member]
Schedule of Debt [Line Items]
Short-term Debt, Maximum Month-end Outstanding Amount	$ 0	$ 0	$ 0	$ 0
Federal Home Loan Bank Advances [Member]
Schedule of Debt [Line Items]
Borrowed funds	$ 310,000		$ 310,000		$ 270,000
Borrowed funds, Rate	1.83%		1.83%		1.82%

Borrowed Funds (Maturity and we

Borrowed Funds (Maturity and weighted average interest rates of FHLB advances) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, rate	1.83%	1.82%
FHLB advances	$ 310,000	$ 270,000
Fixed Rate Advances Due 2017 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, rate	1.13%	1.39%
FHLB fixed rate advances	$ 40,000	$ 70,000
Fixed Rate Advances Due 2018 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, rate	2.16%	2.16%
FHLB fixed rate advances	$ 50,000	$ 50,000
Fixed Rate Advances Due 2019 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, rate	1.87%	1.99%
FHLB fixed rate advances	$ 85,000	$ 60,000
Fixed Rate Advances Due 2020 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, rate	1.52%	1.98%
FHLB fixed rate advances	$ 35,000	$ 10,000
Fixed Rate Advances Due 2021 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, rate	1.91%	1.91%
FHLB fixed rate advances	$ 50,000	$ 50,000
Federal Home Loan Bank, Advances, Variable Rate Due 2021 [Member] [Member] [Member]
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank, Advances, Floating Rate	$ 10,000	$ 10,000
FHLB advances, rate	1.61%	1.21%
Federal Home Loan Bank, Advances, Fixed Rate Due 2022 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, rate	1.97%	0.00%
FHLB fixed rate advances	$ 20,000	$ 0
Fixed Rate Advances Due 2023 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, rate	3.90%	3.90%
FHLB fixed rate advances	$ 10,000	$ 10,000
Federal Home Loan Bank, Advances, Fixed Rate Due 2026 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, rate	1.17%	1.17%
FHLB fixed rate advances	$ 10,000	$ 10,000

Borrowed Funds (Short-term borr

Borrowed Funds (Short-term borrowings) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt [Line Items]
Maximum Month End Balance	$ 58,464	$ 56,057	$ 58,464	$ 61,783
Average Balance	$ 53,846	$ 54,446	$ 55,051	$ 57,159
Weighted Average Interest Rate During the Period	0.13%	0.13%	0.13%	0.13%
Federal Funds Purchased [Member]
Short-term Debt [Line Items]
Maximum Month End Balance	$ 3,815	$ 20,600	$ 5,965	$ 20,600
Average Balance	$ 1,474	$ 8,848	$ 3,280	$ 8,614
Weighted Average Interest Rate During the Period	1.20%	0.69%	1.13%	0.69%
Federal Reserve Bank Advances [Member]
Short-term Debt [Line Items]
Maximum Month End Balance	$ 0	$ 0	$ 0	$ 0
Average Balance	$ 82	$ 0	$ 57	$ 0
Weighted Average Interest Rate During the Period	1.60%	0.00%	1.54%	0.00%

Borrowed Funds (Pledged financi

Borrowed Funds (Pledged financial instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Debt Disclosure [Abstract]
Pledged to secure borrowed funds	$ 416,279	$ 363,427
Pledged to secure repurchase agreements	54,996	60,918
Pledged for public deposits and for other purposes necessary or required by law	29,774	33,916
Total	501,049	458,261
Short-term Debt [Line Items]
AFS securities pledged without single maturity dates	54,996	60,918
State and Local Funds Purchased [Member]
Short-term Debt [Line Items]
AFS securities pledged without single maturity dates	4,256	5,676
Mortgage Backed Securities, Other [Member]
Short-term Debt [Line Items]
AFS securities pledged without single maturity dates	15,419	11,383
Collateralized Mortgage Obligations [Member]
Short-term Debt [Line Items]
AFS securities pledged without single maturity dates	$ 35,321	$ 43,859

Borrowed Funds (Derivatives) (D

Borrowed Funds (Derivatives) (Details) - Cash Flow Hedging [Member] - Interest Rate Swaps [Member] - Designated as Hedging Instrument [Member] - London Interbank Offered Rate (LIBOR) [Member] - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Derivatives, Fair Value [Line Items]
Pay Rate	1.56%	1.56%
Remaining Life (Years)	3 years 7 months	4 years 4 months
Notional Amount	$ 10,000	$ 10,000
Other Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ 215	$ 248

Borrowed Funds (Narrative) (Det

Borrowed Funds (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Debt Disclosure [Abstract]
Carrying value of securities sold under agreements to repurchase	$ 54,996	$ 60,918
Short-term Debt [Line Items]
Additional borrowing capacity	$ 114,839
Federal Funds Purchased [Member] | Minimum [Member]
Short-term Debt [Line Items]
Debt instrument, term	1 day
Federal Funds Purchased [Member] | Maximum [Member]
Short-term Debt [Line Items]
Debt instrument, term	4 days

Other Noninterest Expenses (Exp

Other Noninterest Expenses (Expenses included in other noninterest expenses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Summary of expenses included in other noninterest expenses
ATM and Debit Card Expense	$ 253	$ 210	$ 873	$ 627
Professional Fees, Audit And Related	322	319	757	664
Directors fees	212	207	634	630
Professional Fees, Consulting	259	198	672	567
Expense Related to Distribution or Servicing and Underwriting Fees	237	142	546	377
FDIC insurance premiums	172	224	480	646
Donations and community relations	190	134	488	399
Postage and freight	85	96	304	293
Printing and supplies	110	105	320	325
Marketing Expense	172	101	361	359
Education and travel	143	73	332	309
All other	438	486	1,427	1,692
Total other	$ 2,593	$ 2,295	$ 7,194	$ 6,888

Federal Income Taxes (Details)

Federal Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Federal statutory tax rate	34.00%	34.00%	34.00%	34.00%
Income taxes at 34% statutory rate	$ 1,458	$ 1,481	$ 4,317	$ 4,036
Interest income on tax exempt municipal securities	(452)	(457)	(1,361)	(1,400)
Earnings on corporate owned life insurance policies	(60)	(62)	(183)	(192)
Effect of tax credits	(186)	(188)	(566)	(575)
Other	(18)	(19)	(54)	(55)
Total effect of nontaxable income	(716)	(726)	(2,164)	(2,222)
Effect of nondeductible expenses	8	8	27	41
Federal income tax expense	$ 750	$ 763	$ 2,180	$ 1,855

Fair Value (Quantitative inform

Fair Value (Quantitative information about impaired loans) (Details) - Discounted appraisal value [Member] - Level 3 [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discounted appraisal value at fair value	$ 16,158	$ 9,166
Real Estate [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	20.00%	20.00%
Real Estate [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	30.00%	0.00%
Equipment [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	20.00%	20.00%
Equipment [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	45.00%	0.00%
Loans Receivable, Collateralized By Accounts Receivable [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	50.00%
Cash crop inventory [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	30.00%	30.00%
Cash crop inventory [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	40.00%	0.00%
Loans Receivable, Collateralized By Other Inventory [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	50.00%
Loans Receivable, Collateralized By Other Inventory [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	75.00%
Liquor License [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	75.00%	75.00%
Furniture and Fixtures [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate		45.00%
Furniture and Fixtures [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	35.00%
Furniture and Fixtures [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	45.00%

Fair Value (Quantitative info62

Fair Value (Quantitative information related to foreclosed assets) (Details) - Discounted appraisal value [Member] - Level 3 [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Real Estate Owned, Fair Value Disclosure	$ 240	$ 231
Real Estate [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	20.00%	20.00%
Real Estate [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	30.00%	30.00%

Fair Value (Carrying amount and

Fair Value (Carrying amount and estimated fair value of financial instruments) (Details) - USD ($) $ in Thousands		Sep. 30, 2017	Dec. 31, 2016
Level 1 [Member]
ASSETS
Cash and cash equivalents		$ 21,067	$ 22,894
Mortgage loans AFS		0	0
Total loans		0	0
Less allowance for loan losses		0	0
Net loans		0	0
Accrued interest receivable		7,388	6,580
Equity securities without readily determinable fair values	[1]	0	0
Originated mortgage servicing rights		0	0
LIABILITIES
Deposits without stated maturities		791,567	761,626
Deposits with stated maturities		0	0
Borrowed funds		0	0
Accrued interest payable		633	574
Level 2 [Member]
ASSETS
Cash and cash equivalents		0	0
Mortgage loans AFS		1,245	1,836
Total loans		0	0
Less allowance for loan losses		0	0
Net loans		0	0
Accrued interest receivable		0	0
Equity securities without readily determinable fair values	[1]	0	0
Originated mortgage servicing rights		2,413	2,306
LIABILITIES
Deposits without stated maturities		0	0
Deposits with stated maturities		423,536	430,088
Borrowed funds		367,873	336,975
Accrued interest payable		0	0
Level 3 [Member]
ASSETS
Cash and cash equivalents		0	0
Mortgage loans AFS		0	0
Total loans		1,056,912	991,009
Less allowance for loan losses		7,700	7,400
Net loans		1,049,212	983,609
Accrued interest receivable		0	0
Equity securities without readily determinable fair values	[1]	0	0
Originated mortgage servicing rights		0	0
LIABILITIES
Deposits without stated maturities		0	0
Deposits with stated maturities		0	0
Borrowed funds		0	0
Accrued interest payable		0	0
Carrying Value [Member]
ASSETS
Cash and cash equivalents		21,067	22,894
Mortgage loans AFS		1,237	1,816
Total loans		1,077,544	1,010,615
Less allowance for loan losses		7,700	7,400
Net loans		1,069,844	1,003,215
Accrued interest receivable		7,388	6,580
Equity securities without readily determinable fair values	[1]	23,461	21,694
Originated mortgage servicing rights		2,413	2,306
LIABILITIES
Deposits without stated maturities		791,567	761,626
Deposits with stated maturities		424,495	433,414
Borrowed funds		367,027	337,694
Accrued interest payable		633	574
Estimated Fair Value [Member]
ASSETS
Cash and cash equivalents		21,067	22,894
Mortgage loans AFS		1,245	1,836
Total loans		1,056,912	991,009
Less allowance for loan losses		7,700	7,400
Net loans		1,049,212	983,609
Accrued interest receivable		7,388	6,580
Originated mortgage servicing rights		2,413	2,306
LIABILITIES
Deposits without stated maturities		791,567	761,626
Deposits with stated maturities		423,536	430,088
Borrowed funds		367,873	336,975
Accrued interest payable		$ 633	$ 574
[1]	Due to the characteristics of equity securities without readily determinable fair values, they are not disclosed under a specific fair value hierarchy. If we were to record an impairment adjustment related to these securities, such amount would be classified as a nonrecurring Level 3 fair value adjustment.

Fair Value (Recorded amount of

Fair Value (Recorded amount of assets and liabilities measured at fair value) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
AFS Securities
AFS securities	$ 552,925	$ 558,096
Fair value, total	569,538	567,741
Level 1 [Member]
AFS Securities
Fair value, total	$ 3,651	$ 3,425
Percent of assets and liabilities measured at fair value	0.64%	0.60%
Level 2 [Member]
AFS Securities
Fair value, total	$ 549,489	$ 554,919
Percent of assets and liabilities measured at fair value	96.48%	97.74%
Level 3 [Member]
AFS Securities
Fair value, total	$ 16,398	$ 9,397
Percent of assets and liabilities measured at fair value	2.88%	1.66%
Recurring items [Member]
AFS Securities
AFS securities	$ 552,925	$ 558,096
Derivative instruments	(215)	248
Recurring items [Member] | Government sponsored enterprises [Member]
AFS Securities
AFS securities	232	10,259
Recurring items [Member] | States and political subdivisions [Member]
AFS Securities
AFS securities	213,457	212,919
Recurring items [Member] | Auction rate money market preferred [Member]
AFS Securities
AFS securities	3,172	2,794
Recurring items [Member] | Preferred stock [Member]
AFS Securities
AFS securities	3,651	3,425
Recurring items [Member] | Mortgage-backed securities [Member]
AFS Securities
AFS securities	215,914	227,256
Recurring items [Member] | Collateralized mortgage obligations [Member]
AFS Securities
AFS securities	116,499	101,443
Recurring items [Member] | Level 1 [Member]
AFS Securities
AFS securities	3,651	3,425
Derivative instruments	0	0
Recurring items [Member] | Level 1 [Member] | Government sponsored enterprises [Member]
AFS Securities
AFS securities	0	0
Recurring items [Member] | Level 1 [Member] | States and political subdivisions [Member]
AFS Securities
AFS securities	0	0
Recurring items [Member] | Level 1 [Member] | Auction rate money market preferred [Member]
AFS Securities
AFS securities	0	0
Recurring items [Member] | Level 1 [Member] | Preferred stock [Member]
AFS Securities
AFS securities	3,651	3,425
Recurring items [Member] | Level 1 [Member] | Mortgage-backed securities [Member]
AFS Securities
AFS securities	0	0
Recurring items [Member] | Level 1 [Member] | Collateralized mortgage obligations [Member]
AFS Securities
AFS securities	0	0
Recurring items [Member] | Level 2 [Member]
AFS Securities
AFS securities	549,274	554,671
Derivative instruments	215	248
Recurring items [Member] | Level 2 [Member] | Government sponsored enterprises [Member]
AFS Securities
AFS securities	232	10,259
Recurring items [Member] | Level 2 [Member] | States and political subdivisions [Member]
AFS Securities
AFS securities	213,457	212,919
Recurring items [Member] | Level 2 [Member] | Auction rate money market preferred [Member]
AFS Securities
AFS securities	3,172	2,794
Recurring items [Member] | Level 2 [Member] | Preferred stock [Member]
AFS Securities
AFS securities	0	0
Recurring items [Member] | Level 2 [Member] | Mortgage-backed securities [Member]
AFS Securities
AFS securities	215,914	227,256
Recurring items [Member] | Level 2 [Member] | Collateralized mortgage obligations [Member]
AFS Securities
AFS securities	116,499	101,443
Recurring items [Member] | Level 3 [Member]
AFS Securities
AFS securities	0	0
Derivative instruments	0	0
Recurring items [Member] | Level 3 [Member] | Government sponsored enterprises [Member]
AFS Securities
AFS securities	0	0
Recurring items [Member] | Level 3 [Member] | States and political subdivisions [Member]
AFS Securities
AFS securities	0	0
Recurring items [Member] | Level 3 [Member] | Auction rate money market preferred [Member]
AFS Securities
AFS securities	0	0
Recurring items [Member] | Level 3 [Member] | Preferred stock [Member]
AFS Securities
AFS securities	0	0
Recurring items [Member] | Level 3 [Member] | Mortgage-backed securities [Member]
AFS Securities
AFS securities	0	0
Recurring items [Member] | Level 3 [Member] | Collateralized mortgage obligations [Member]
AFS Securities
AFS securities	0	0
Nonrecurring items [Member]
AFS Securities
Impaired loans (net of the allowance for loan losses)	16,158	9,166
Foreclosed assets	240	231
Nonrecurring items [Member] | Level 1 [Member]
AFS Securities
Impaired loans (net of the allowance for loan losses)	0	0
Foreclosed assets	0	0
Nonrecurring items [Member] | Level 2 [Member]
AFS Securities
Impaired loans (net of the allowance for loan losses)	0	0
Foreclosed assets	0	0
Nonrecurring items [Member] | Level 3 [Member]
AFS Securities
Impaired loans (net of the allowance for loan losses)	16,158	9,166
Foreclosed assets	$ 240	$ 231

Fair Value (Narrative) (Details

Fair Value (Narrative) (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Valuation Adjustments	$ 2,000	$ 0	$ 2,000	$ 0
Federal Funds Purchased, Securities Sold Under Agreements To Repurchase, And Other Borrowings [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, term			90 days
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairments recorded on equity securities without readily determinable fair values			$ 0	0
Impairments recorded on goodwill and other acquisition intangibles			0	$ 0
Nonrecurring items [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real Estate Owned, Fair Value Disclosure	240,000		240,000		$ 231,000
Nonrecurring items [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real Estate Owned, Fair Value Disclosure	$ 240,000		$ 240,000		$ 231,000

Accumulated Other Comprehensi66

Accumulated Other Comprehensive Income (Loss) (Changes in AOCI by component) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	$ 0	$ 0	$ 142	$ 245
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	86	7,567	(2,778)	221
OCI before reclassifications	(85)	(2,457)	4,118	8,732
Amounts reclassified from AOCI	0	0	(142)	(245)
Net unrealized gains (losses)	(85)	(2,457)	3,976	8,487
Tax effect	50	906	(1,147)	(2,692)
Unrealized gains (losses), net of tax	(35)	(1,551)	2,829	5,795
Ending Balance	51	6,016	51	6,016
Unrealized Holding Gains (Losses) on AFS Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	0	0	142	245
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	2,923	10,982	30	3,536
OCI before reclassifications	(96)	(2,548)	4,151	8,793
Amounts reclassified from AOCI	0	0	(142)	(245)
Net unrealized gains (losses)	(96)	(2,548)	4,009	8,548
Tax effect	54	937	(1,158)	(2,713)
Unrealized gains (losses), net of tax	(42)	(1,611)	2,851	5,835
Ending Balance	2,881	9,371	2,881	9,371
Defined Benefit Pension Plan [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(2,972)	(3,315)	(2,972)	(3,315)
OCI before reclassifications	0	0	0	0
Amounts reclassified from AOCI	0	0	0	0
Net unrealized gains (losses)	0	0	0	0
Tax effect	0	0	0	0
Unrealized gains (losses), net of tax	0	0	0	0
Ending Balance	(2,972)	(3,315)	(2,972)	(3,315)
Gain (Loss) on Derivative Instruments [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	135	(100)	164	0
OCI before reclassifications	11	91	(33)	(61)
Amounts reclassified from AOCI	0	0	0	0
Net unrealized gains (losses)	11	91	(33)	(61)
Tax effect	(4)	(31)	11	21
Unrealized gains (losses), net of tax	7	60	(22)	(40)
Ending Balance	142	(40)	142	(40)
Auction Rate Money Market Preferred Stocks [Member] | Unrealized Holding Gains (Losses) on AFS Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	0	0	0	0
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Unrealized gains (losses), net of tax	$ 63	$ 208	$ 604	$ 568

Accumulated Other Comprehensi67

Accumulated Other Comprehensive Income (Loss) (Components of unrealized holding gains on AFS securities) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) on AFS securities arising during the period	$ (96)	$ (2,548)	$ 4,151	$ 8,793
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	0	0	(142)	(245)
Tax effect	54	937	(1,158)	(2,713)
Unrealized gains (losses), net of tax	(35)	(1,551)	2,829	5,795
Unrealized Holding Gains (Losses) on AFS Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) on AFS securities arising during the period	(96)	(2,548)	4,151	8,793
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	0	0	(142)	(245)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax, Portion Attributable to Parent	(96)	(2,548)	4,009	8,548
Tax effect	54	937	(1,158)	(2,713)
Unrealized gains (losses), net of tax	(42)	(1,611)	2,851	5,835
Unrealized Holding Gains (Losses) on AFS Securities [Member] | Auction Rate Money Market Preferred and Preferred Stocks [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) on AFS securities arising during the period	63	208	604	568
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	0	0	0	0
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax, Portion Attributable to Parent	63	208	604	568
Tax effect	0	0	0	0
Unrealized gains (losses), net of tax	63	208	604	568
Unrealized Holding Gains (Losses) on AFS Securities [Member] | All Other AFS Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) on AFS securities arising during the period	(159)	(2,756)	3,547	8,225
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	0	0	(142)	(245)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax, Portion Attributable to Parent	(159)	(2,756)	3,405	7,980
Tax effect	54	937	(1,158)	(2,713)
Unrealized gains (losses), net of tax	(105)	(1,819)	2,247	5,267
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses), net of tax	$ 0	$ 0	$ 0	$ 0

Parent Company Only Financial68

Parent Company Only Financial Information (Interim Condensed Balance Sheets) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
ASSETS
AFS securities	$ 552,925	$ 558,096
Premises and equipment	28,761	29,314
Other assets	11,872	13,576
TOTAL ASSETS	1,791,967	1,732,151
LIABILITIES AND SHAREHOLDERS' EQUITY
Shareholders' equity	196,463	187,899	$ 195,184	$ 183,971
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	1,791,967	1,732,151
Parent Company [Member]
ASSETS
Cash on deposit at subsidiary Bank	945	1,297
AFS securities	0	251
Investments in subsidiaries	146,138	138,549
Premises and equipment	1,961	1,991
Other assets	52,795	52,846
TOTAL ASSETS	201,839	194,934
LIABILITIES AND SHAREHOLDERS' EQUITY
Other liabilities	5,376	7,035
Shareholders' equity	196,463	187,899
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 201,839	$ 194,934

Parent Company Only Financial69

Parent Company Only Financial Information (Interim Condensed Statements of Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Expenses
Compensation and benefits	$ 5,360	$ 4,940	$ 15,869	$ 14,412
Occupancy and equipment	809	845	2,461	2,443
ProfesDonations and community relations	322	319	757	664
Other	2,593	2,295	7,194	6,888
Federal income tax benefit	(750)	(763)	(2,180)	(1,855)
NET INCOME	3,536	3,593	10,516	10,017
Parent Company [Member]
Income
Dividends from subsidiaries	2,900	2,000	7,200	5,600
Interest income	0	3	2	11
Management fee and other	1,660	1,680	4,901	4,962
Total income	4,560	3,683	12,103	10,573
Expenses
Compensation and benefits	1,118	1,196	3,608	3,580
Occupancy and equipment	456	438	1,332	1,281
ProfesDonations and community relations	148	193	412	389
Other	556	427	1,731	1,561
Total expenses	2,278	2,254	7,083	6,811
Income before income tax benefit and equity in undistributed earnings of subsidiaries	2,282	1,429	5,020	3,762
Federal income tax benefit	209	199	737	616
Income before equity in undistributed earnings of subsidiaries	2,491	1,628	5,757	4,378
Undistributed earnings of subsidiaries	1,045	1,965	4,759	5,639
NET INCOME	$ 3,536	$ 3,593	$ 10,516	$ 10,017

Parent Company Only Financial70

Parent Company Only Financial Information (Interim Condensed Statements of Cash Flows) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Operating activities
Net income	$ 3,536	$ 3,593	$ 10,516	$ 10,017
Adjustments to reconcile net income to cash provided by operations
Share-based payment awards			502	443
Depreciation			2,163	2,116
Changes in operating assets and liabilities which used cash
Other assets			(1,491)	1,005
Accrued interest and other liabilities			897	165
Net cash provided by (used in) operating activities			13,728	15,565
Investing activities
Purchases of premises and equipment			(1,610)	(2,771)
Net cash provided by (used in) investing activities			(60,627)	(37,704)
Financing activities
Cash dividends paid on common stock			(5,950)	(5,697)
Proceeds from the issuance of common stock			4,999	3,683
Common stock repurchased			(4,005)	(2,749)
Common stock purchased for deferred compensation obligations			(327)	(279)
Net cash provided by (used in) financing activities			45,072	21,905
Increase (decrease) in cash and cash equivalents			(1,827)	(234)
Cash and cash equivalents at beginning of period			22,894	21,569
Cash and cash equivalents at end of period	21,067	21,335	21,067	21,335
Parent Company [Member]
Operating activities
Net income	3,536	3,593	10,516	10,017
Adjustments to reconcile net income to cash provided by operations
Undistributed earnings of subsidiaries			(4,759)	(5,639)
Undistributed earnings of equity securities without readily determinable fair values			33	(287)
Share-based payment awards			502	443
Depreciation			116	117
Changes in operating assets and liabilities which used cash
Other assets			19	177
Accrued interest and other liabilities			(1,659)	(2,575)
Net cash provided by (used in) operating activities			4,768	2,253
Investing activities
Maturities, calls, principal payments, and sales of AFS securities			249	0
Purchases of premises and equipment			(86)	(86)
Net cash provided by (used in) investing activities			163	(86)
Financing activities
Cash dividends paid on common stock			(5,950)	(5,697)
Proceeds from the issuance of common stock			4,999	3,683
Common stock repurchased			(4,005)	(2,749)
Common stock purchased for deferred compensation obligations			(327)	(279)
Net cash provided by (used in) financing activities			(5,283)	(5,042)
Increase (decrease) in cash and cash equivalents			(352)	(2,875)
Cash and cash equivalents at beginning of period			1,297	4,125
Cash and cash equivalents at end of period	$ 945	$ 1,250	$ 945	$ 1,250

Operating Segments (Narrative)

Operating Segments (Narrative) (Details)	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting [Abstract]
Percentage of reportable segments total assets and operating results, or more	90.00%	90.00%