First Mid Bancshares (FMBH) 10-Q 4 May 20 2020 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2020	May 04, 2020
Document and Entity Information [Abstract]
Entity Registrant Name	FIRST MID BANCSHARES, INC.
Entity Central Index Key	0000700565
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Document Type	10-Q
Amendment Flag	false
Entity Common Stock, Shares Outstanding		16,702,484
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Interactive Data Current	Yes
Document Period End Date	Mar. 31, 2020

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Cash and due from banks:
Non-interest bearing	$ 80,798	$ 76,498
Interest bearing	100,302	7,656
Federal funds sold	927	926
Cash and cash equivalents	182,027	85,080
Certificates of deposit	4,380	4,625
Investment securities:
Available-for-sale, at fair value	617,801	686,048
Held-to-maturity, at amortized cost (estimated fair value of $24,806 and $69,572 at March 31, 2020 and December 31, 2019, respectively)	24,563	69,542
Loans held for sale	1,251	1,820
Loans	2,743,047	2,693,527
Less allowance for credit losses	(32,876)	(26,911)
Net loans	2,710,171	2,666,616
Interest receivable	15,422	15,577
Other real estate owned	2,784	3,644
Premises and equipment, net	59,359	59,491
Goodwill, net	104,992	104,992
Intangible assets, net	27,207	28,265
Bank Owned Life Insurance	67,656	67,225
Operating lease right-of-use assets	16,542	17,006
Other assets	30,676	29,495
Total assets	3,864,831	3,839,426
Deposits:
Non-interest bearing	642,384	633,331
Interest bearing	2,266,243	2,284,035
Total deposits	2,908,627	2,917,366
Liabilities and Stockholders' Equity
Securities sold under agreements to repurchase	231,649	208,109
Interest payable	2,029	2,261
Advances from Federal Home Loan Banks	119,921	113,895
Other borrowings	5,000	5,000
Junior subordinated debentures	18,900	18,858
Operating lease liabilities	16,568	17,007
Other liabilities	29,086	30,321
Total liabilities	3,331,780	3,312,817
Stockholders' Equity
Common stock, $4 par value; authorized 30,000,000 shares; issued 17,316,886 and 17,287,882 shares in 2020 and 2019, respectively	71,268	71,152
Additional paid-in capital	296,853	295,925
Retained earnings	175,949	166,667
Deferred compensation	2,022	2,760
Accumulated other comprehensive income	5,209	8,360
Less treasury stock at cost, 614,403 shares in 2020 and 2019	(18,250)	(18,255)
Total stockholders’ equity	533,051	526,609
Total liabilities and stockholders’ equity	$ 3,864,831	$ 3,839,426

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Investment securities:
Held-to-maturity, at fair value	$ 24,806	$ 69,572
Stockholders Equity
Common stock, par value (in dollars per share)	$ 4	$ 4
Common stock, authorized (in shares)	30,000,000	30,000,000
Common stock, issued (in shares)	17,316,886	17,287,882
Treasury stock (in shares)	614,403	614,403

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Interest Expense, Other Short-term Borrowings	$ 15	$ 0
Interest income:
Interest and fees on loans	30,027	32,104
Interest on investment securities	4,589	5,209
Interest on certificates of deposit investments	31	38
Interest on federal funds sold	2	3
Interest on deposits with other financial institutions	92	697
Total interest income	34,741	38,051
Interest expense:
Interest on deposits	3,861	4,378
Interest on securities sold under agreements to repurchase	194	260
Interest on FHLB borrowings	580	723
Interest on subordinated debentures	218	438
Total interest expense	4,868	5,799
Net interest income	29,873	32,252
Provision for loan losses	5,481	947
Net interest income after provision for loan losses	24,392	31,305
Other income:
Revenue From Contract With Customer, Wealth Management	3,626	3,645
Insurance commissions	6,621	5,555
Revenue From Contract With Customer, Deposit Service Charges	1,778	1,802
Securities gains, net	531	54
Revenue From Contract With Customer, Mortgage Banking	308	239
Revenue From Contract With Customer, ATM & Debit Card	1,987	2,016
Bank Owned Life Insurance Income	431	430
Other	1,228	898
Total other income	16,510	14,639
Other expense:
Salaries and employee benefits	16,500	16,574
Net occupancy and equipment expense	4,242	4,455
Net Other Real Estate Owned (Income) Expense	(46)	53
FDIC insurance	93	279
Amortization of intangible assets	1,295	1,356
Stationery and supplies	268	287
Legal and professional	1,398	1,194
ATM Debit Card Expense	605	803
Marketing and donations	481	454
Other	2,895	2,855
Total other expense	27,731	28,310
Income before income taxes	13,171	17,634
Income taxes	3,172	4,318
Net income	$ 9,999	$ 13,316
Per share data:
Basic earnings per common share	$ 0.60	$ 0.80
Diluted net income per common share available to common stockholders	$ 0.60	$ 0.80

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 9,999	$ 13,316
Other Comprehensive Income [Abstract]
Unrealized gains (losses) on available-for-sale securities, net of taxes of $1,139 and $(3,123) for three months ended March 31, 2020 and 2019, respectively.	(2,789)	7,645
Amortized holding losses on held-to-maturity securities transferred from available-for-sale, net of taxes of $(5) and$(8) for three months ended March 31, 2020 and 2019, respectively.	15	21
Less: reclassification adjustment for realized gains included in net income, net of taxes of $154 and $16 for three months ended March 31, 2020 and 2019, respectively.	(377)	(38)
Other comprehensive income (loss), net of taxes	(3,151)	7,628
Comprehensive income	$ 6,848	$ 20,944

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other Comprehensive Income [Abstract]
Unrealized gains on available-for-sale securities, taxes	$ 1,139	$ (3,123)
Unamortized holding losses on held to maturity securities transferred from available for sale, taxes	(5)	(8)
Other Comprehensive Income Loss Reclassification Adjustment For Sale Or Writedown Of Securities Included In Net Income Tax	$ 154	$ 16

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Changes in Stockholders' Equity Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Deferred Compensation, Share-based Payments [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock, Common [Member]
Stockholders' Equity Attributable to Parent	$ 475,864	$ 70,876	$ 293,937	$ 131,392	$ 2,761	$ (6,473)	$ (16,629)
Net income	13,316	0	0	13,316	0	0	0
Other Comprehensive Income (Loss), Net of Tax	7,628	0	0	0	0	7,628	0
Stock Issued During Period, Value, Deferred Compensation Plan	194	23	171	0	0	0	0
Stock Issued During Period, Value, Restricted Stock Award, Gross	864	104	760	0	0	0	0
Increase (Decrease) in Deferred Compensation	0	0	0	0	1	0	1
Stock Issued During Period, Value, Employee Stock Purchase Plan	24	3	21	0	0	0	0
APIC, Share-based Payment Arrangement, Recognition and Exercise	(866)	0	(52)	0	(814)	0	0
Adjustments to Deferred Compensation Equity, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition	128	0	0	0	128	0	0
Stockholders' Equity Attributable to Parent	497,152	71,006	294,837	144,708	2,074	1,155	(16,628)
Stockholders' Equity Attributable to Parent	526,609	71,152	295,925	166,667	2,760	8,360	(18,255)
Net income	9,999	0	0	9,999	0	0	0
Other Comprehensive Income (Loss), Net of Tax	(3,151)	0	0	0	0	(3,151)	0
Stock Issued During Period, Value, Restricted Stock Award, Gross	868	101	767	0	0	0	0
Increase (Decrease) in Deferred Compensation	0	0	0	0	(5)	0	(5)
Stock Issued During Period, Value, Employee Stock Purchase Plan	86	15	71	0	0	0
Adjustments to Additional Paid in Capital, Income Tax Benefit from Deferred Compensation	22	0	22	0	0	0	0
APIC, Share-based Payment Arrangement, Recognition and Exercise	584	0	584	0	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested	(516)	0	(516)	0	0	0	0
Adjustments to Deferred Compensation Equity, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition	(733)	0	0	0	(733)	0	0
Stockholders' Equity Attributable to Parent	$ 533,051	$ 71,268	$ 296,853	$ 175,949	$ 2,022	$ 5,209	$ (18,250)

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Changes in Stockholders' Equity Condensed Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Changes in Stockholders' Equity [Abstract]
Dividends on common stock (in dollars per share)	$ 0	$ 0
Stock Issued During Period, Shares, Dividend Reinvestment Plan	0	0
Deferred Compensation Arrangement with Individual, Shares Issued	0	5,761
Stock Issued During Period, Shares, Restricted Stock Award, Gross	25,200	25,950
Stock Issued During Period, Shares, Employee Stock Purchase Plans	3,804	782
Treasury Stock, Shares, Acquired	0	0

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 9,999	$ 13,316
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	5,481	947
Depreciation, amortization and accretion, net	2,721	2,430
Life Insurance, Corporate or Bank Owned, Change in Value	(431)	(430)
Stock-based compensation expense	204	128
Operating Lease, Payments	(677)	(664)
Gains on investment securities, net	(531)	(54)
Gain on sales of repossessed assets, net	(162)	(5)
Gain on sale of premises and equipment	(26)	0
Gains on sale of loans held for sale, net	(353)	(180)
Decrease in accrued interest receivable	155	808
(Decrease) increase in accrued interest payable	(164)	493
Origination of loans held for sale	(20,039)	(12,098)
Proceeds from sale of loans held for sale	20,961	12,553
(Increase) decrease in other assets	(937)	507
Increase (decrease) in other liabilities	413	(333)
Net cash provided by operating activities	16,614	17,418
Cash flows from investing activities:
Proceeds from maturities of certificates of deposit investments	1,225	249
Purchases of certificates of deposit investments	980	0
Proceeds from sales of securities available-for-sale	0	12,631
Proceeds from maturities of securities available-for-sale	108,666	23,020
Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities	45,000	0
Purchases of securities available-for-sale	(44,830)	(28,431)
Net (increase) decrease in loans	(50,059)	45,188
Purchases of premises and equipment	(786)	(987)
Proceeds from sales of other real property owned	1,211	354
Net cash provided by investing activities	59,447	52,024
Cash flows from financing activities:
Net (decrease) increase in deposits	(8,739)	57,527
Increase (Decrease) in Federal Funds Purchased	5,000	0
Increase (decrease) in repurchase agreements	23,540	(34,570)
Proceeds from FHLB advances	15,000	0
Repayment of FHLB advances	9,000	0
Proceeds from Issuance of Long-term Debt	5,000	0
Repayment of long-term debt	0	1,467
Proceeds from issuance of common stock	85	216
Net cash provided by financing activities	20,886	21,706
Increase in cash and cash equivalents	96,947	91,148
Cash and cash equivalents at beginning of period	85,080	141,400
Cash and cash equivalents at end of period	182,027	232,548
Cash paid during the period for:
Interest	5,100	5,391
Income taxes	0	2,035
Supplemental disclosures of noncash investing and financing activities
Loans Transferred to Other Real Estate Owned	184	1,630
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	0	14,116
Initial Recognition Of Operating Lease Liaibility	0	14,116
Net tax benefit related to option and deferred compensation plans	$ 22	$ 0

Basis of Accounting and Consoli

Basis of Accounting and Consolidation	3 Months Ended
	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of accounting and consolidation	Basis of Accounting and Consolidation The unaudited condensed consolidated financial statements include the accounts of First Mid Bancshares, Inc. (“Company”) formerly known as First Mid-Illinois Bancshares, Inc., and its wholly-owned subsidiaries: First Mid Bank & Trust, N.A. (“First Mid Bank”), First Mid Wealth Management Company, Mid-Illinois Data Services, Inc. (“MIDS”), First Mid Insurance Group, Inc. (“First Mid Insurance”) and First Mid Captive, Inc. All significant intercompany balances and transactions have been eliminated in consolidation. The financial information reflects all adjustments which, in the opinion of management, are necessary for a fair presentation of the results of the interim periods ended March 31, 2020 and 2019 , and all such adjustments are of a normal recurring nature. Certain amounts in the prior year’s consolidated financial statements may have been reclassified to conform to the March 31, 2020 presentation and there was no impact on net income or stockholders’ equity. The results of the interim period ended March 31, 2020 are not necessarily indicative of the results expected for the year ending December 31, 2020 . The Company operates as a one-segment entity for financial reporting purposes. The 2019 year-end consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America. The unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X and do not include all of the information required by U.S. generally accepted accounting principles (“GAAP”) for complete financial statements and related footnote disclosures although the Company believes that the disclosures made are adequate to make the information not misleading. These consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s 2019 Annual Report on Form 10-K. COVID-19 The COVID-19 outbreak is an unprecedented event that provides significant economic uncertainty for a broad spectrum of industries. The Company is focused on supporting its customers, communities and employees during this unique operating environment. Throughout this document, we describe the impact COVID-19 is having, actions taken as a result of COVID-19, and certain risks to the Company that COVID-19 creates or exacerbates, as well as management's outlook on the current COVID-19 situation. Website The Company maintains a website at www.firstmid.com . All periodic and current reports of the Company and amendments to these reports filed with the Securities and Exchange Commission (“SEC”) can be accessed, free of charge, through this website as soon as reasonably practicable after these materials are filed with the SEC. General Litigation The Company is subject to claims and lawsuits that arise primarily in the ordinary course of business. It is the opinion of management that the disposition or ultimate resolution of such claims and lawsuits will not have a material adverse effect on the consolidated financial position, results of operations and cash flows of the Company. Loan Purchase On April 21, 2020, First Mid Bank completed an acquisition of loans in the St. Louis metro market totaling $183 million . There were no loans determined to be purchased with deteriorated credit. Stock Repurchase Plan On August 16, 2019, the Company adopted a repurchase plan under Rule 10b5-1 and Rule 10b-18 of the Exchange Act. The Company implemented the repurchase plan in connection with its previously announced stock repurchase program. Under the repurchase plan, up to approximately $6.2 million worth of shares of the Company’s common stock could have been repurchased. The 10b5-1 plan expired in early 2020, and there were no shares repurchased under this plan during 2020. During 2019, the Company repurchased approximately $1.1 million in common stock, or 35,427 shares. The Company has approximately $4.9 million in remaining capacity under its existing repurchase program. Stock Plans At the Annual Meeting of Stockholders held April 26, 2017, the stockholders approved the First Mid-Illinois Bancshares, Inc. 2017 Stock Incentive Plan (“SI Plan”). The SI Plan was implemented to succeed the Company’s 2007 Stock Incentive Plan, which had a ten-year term. The SI Plan is intended to provide a means whereby directors, employees, consultants and advisors of the Company and its subsidiaries may sustain a sense of proprietorship and personal involvement in the continued development and financial success of the Company and its subsidiaries, thereby advancing the interests of the Company and its stockholders. Accordingly, directors and selected employees, consultants and advisors may be provided the opportunity to acquire shares of common stock of the Company on the terms and conditions established in the SI Plan. A maximum of 149,983 shares of common stock may be issued under the SI Plan. There have been no stock options awarded under any Company plan since 2008. The Company has awarded 25,200 and 25,950 shares of restricted stock during 2020 and 2019 , respectively, and 16,950 and 16,200 restricted stock units during 2020 and 2019 , respectively. Employee Stock Purchase Plan At the Annual Meeting of Stockholders held April 25, 2018, the stockholders approved the First Mid-Illinois Bancshares, Inc. Employee Stock Purchase Plan (“ESPP”). The ESPP is intended to promote the interests of the Company by providing eligible employees with the opportunity to purchase shares of common stock of the Company at a 5% discount through payroll deductions. The ESPP is also intended to qualify as an employee stock purchase plan under Section 423 of the Internal Revenue Code. A maximum of 600,000 shares of common stock may be issued under the ESPP. As of March 31, 2020 and 2019 , 3,804 shares and 782 shares, respectively, were issued pursuant to the ESPP. Captive Insurance Company First Mid Captive, Inc. ("the Captive"), a wholly-owned subsidiary of the Company which was formed and began operations in December 2019, is a Nevada-based captive insurance company. The Captive insures against certain risks unique to operations of the Company and its subsidiaries for which insurance may not be currently available or economically feasible in today's insurance marketplace. The Captive pools resources with several other similar insurance company subsidiaries of financial institutions to spread a limited amount of risk among themselves. The Captive is subject to regulations of the State of Nevada and undergoes periodic examinations by the Nevada Division of Insurance. It has elected to be taxed under Section 831(b) of the Internal Revenue Code. Pursuant to Section 831(b), if gross premiums do not exceed $2,300,000 , then the Captive is taxable solely on its investment income. The Captive is included in the Company's consolidated financial statements and its federal income return. Bank Owned Life Insurance First Mid Bank has purchased life insurance policies on certain senior management. Bank owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts that are probable at settlement. Revenue Recognition Accounting Standards Codification 606, Revenue from Contracts with Customers (“ASC 606”), establishes a revenue recognition model for reporting information about the nature, amount, timing and uncertainty of revenue and cash flows arising from the entity's contracts to provide goods or services to customers. Most of the Company’s revenue-generating transactions are not subject to ASC 606, including revenue generated from financial instruments, such as loans and investment securities, and revenue related to mortgage servicing activities, which are subject to other accounting standards. A description of the revenue-generating activities that are within the scope of ASC 606, and included in other income in the Company’s condensed consolidated statements of income are as follows: Trust revenues. The Company generates fee income from providing fiduciary services through its subsidiary, First Mid Wealth Management Company. Fees are billed in arrears based upon the preceding period account balance. Revenue from the farm management department is recorded when service is complete, for example when crops are sold. Brokerage commissions. The primary brokerage revenue is recorded at the beginning of each quarter through billing to customers based on the account asset size on the last day of the previous quarter. If a withdrawal of funds takes place, a prorated refund may occur; this is reflected within the same quarter as the original billing occurred. All performance obligations are met within the same quarter that the revenue is recorded. Insurance commissions. The Company’s insurance agency subsidiary, First Mid Insurance, receives commissions on premiums of new and renewed business policies. First Mid Insurance records commission revenue on direct bill policies as the cash is received. For agency bill policies, First Mid Insurance retains its commission portion of the customer premium payment and remits the balance to the carrier. In both cases, the entire performance obligation is held by the carriers. Service charges on deposits. The Company generates revenue from fees charged for deposit account maintenance, overdrafts, wire transfers, and check fees. The revenue related to deposit fees is recognized at the time the performance obligation is satisfied. ATM/debit card revenue. The Company generates revenue through service charges on the use of its ATM machines and interchange income from the use of Company issued credit and debit cards. The revenue is recognized at the time the service is used and the performance obligation is satisfied. Other income. Treasury management fees and lock box fees are received and recorded after the service performance obligation is completed. Merchant bank card fees are received from various vendors, however the performance obligation is with the vendors. The Company records gains on the sale of loans and the sale of OREO properties after the transactions are complete and transfer of ownership has occurred. As each of the Company’s facilities is located in markets with similar economies, no disaggregation of revenue is necessary. Leases Effective January 1, 2019, the Company adopted ASU 2016-02, Leases (Topic 842). As of March 31, 2020 , all of the Company's leases are operating leases for real estate property for bank branches, ATM locations, and office space. For leases in effect at January 1, 2019 and for leases commencing thereafter, the Company recognizes a lease liability and a right-of-use asset, based on the present value of lease payments over the lease term. The discount rate used in determining present value was the Company's incremental borrowing rate which is the FHLB fixed advance rate based on the remaining lease term as of January 1, 2019, or the commencement date for leases subsequently entered into. Accumulated Other Comprehensive Income (Loss) The components of accumulated other comprehensive income (loss) included in stockholders’ equity as of March 31, 2020 and December 31, 2019 are as follows (in thousands): Unrealized Gain (Loss) on Securities March 31, 2020 Net unrealized gains on securities available-for-sale $ 7,366 Unamortized losses on held-to-maturity securities transferred from available-for-sale (30 ) Tax expense (2,127 ) Balance at March 31, 2020 $ 5,209 December 31, 2019 Net unrealized gains on securities available-for-sale $ 11,825 Unamortized losses on held-to-maturity securities transferred from available-for-sale (50 ) Tax Expense (3,415 ) Balance at December 31, 2019 $ 8,360 Amounts reclassified from accumulated other comprehensive income and the affected line items in the statements of income during the three months ended March 31, 2020 and 2019 , were as follows (in thousands): Amounts Reclassified from Other Comprehensive Income Affected Line Item in the Statements of Income Three months ended March 31, 2020 2019 Realized gains on available-for-sale securities $ 531 $ 54 Securities gains, net Tax effect (154 ) (16 ) Income taxes Total reclassifications out of accumulated other comprehensive income $ 377 $ 38 Net reclassified amount See “Note 3 – Investment Securities” for more detailed information regarding unrealized losses on available-for-sale securities.
Consolidation	The unaudited condensed consolidated financial statements include the accounts of First Mid Bancshares, Inc. (“Company”) formerly known as First Mid-Illinois Bancshares, Inc., and its wholly-owned subsidiaries: First Mid Bank & Trust, N.A. (“First Mid Bank”), First Mid Wealth Management Company, Mid-Illinois Data Services, Inc. (“MIDS”), First Mid Insurance Group, Inc. (“First Mid Insurance”) and First Mid Captive, Inc. All significant intercompany balances and transactions have been eliminated in consolidation. The financial information reflects all adjustments which, in the opinion of management, are necessary for a fair presentation of the results of the interim periods ended March 31, 2020 and 2019 , and all such adjustments are of a normal recurring nature. Certain amounts in the prior year’s consolidated financial statements may have been reclassified to conform to the March 31, 2020 presentation and there was no impact on net income or stockholders’ equity. The results of the interim period ended March 31, 2020 are not necessarily indicative of the results expected for the year ending December 31, 2020 . The Company operates as a one-segment entity for financial reporting purposes. The 2019 year-end consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America. The unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X and do not include all of the information required by U.S. generally accepted accounting principles (“GAAP”) for complete financial statements and related footnote disclosures although the Company believes that the disclosures made are adequate to make the information not misleading. These consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s 2019 Annual Report on Form 10-K.
Adoption of new accounting guidance	Adoption of New Accounting Guidance Accounting Standards Update 2017-04, Intangibles-Goodwill and Other (Topic 350: Simplifying the Test for Goodwill Impairment ("ASU 2017-04"). In January 2017, FASB issued ASU 2017-04. The amendments in this update simplify the measurement of goodwill by eliminating Step 2 from the goodwill impairment test. Under this guidance, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value; however, the loss should not exceed the total amount of goodwill allocated to that reporting unit. ASU 2017-04 is effective for public companies for the reporting periods beginning after December 15, 2019. The Company adopted the guidance effective January 2020. Although the Company cannot anticipate future goodwill impairment, the Company does not anticipate a material impact on the Company's financial statements. The current accounting policies and procedures of the Company have not changed, except for the elimination of Step 2 analysis. Accounting Standards Update 2016-02, Leases (Topic 842)("ASU 2016-02"). On February 25, 2016, FASB issued ASU 2016-02 which creates Topic 842, Leases and supersedes Topic 840, Leases. ASU 2016-02 is intended to improve financial reporting about leasing transactions, by increasing transparency and comparability among organizations. Under the new guidance, a lessee is required to record all leases with lease terms of more than 12 months on their balance sheet as lease liabilities with a corresponding right-of-use asset. ASU 2016-02 maintains the dual model for lease accounting, requiring leases to be classified as either operating or finance, with lease classification determined in a manner similar to existing leas guidance. The new guidance is effective for public companies for fiscal years beginning on or after December 15, 2018, and for private companies for fiscal years beginning on or after December 15, 2019. The Company adopted the guidance effective January 1, 2019 and recorded a right of use asset of $14.1 million and a lease liability of $14.1 million . Accounting Standards Update 2018-13, Fair Value Measurements (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”). In August 2018, FASB issued ASU 2018-13. This ASU eliminates, adds and modifies certain disclosure requirements for fair value measurements. Among the changes, an entity will no longer be required to disclose the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, but will be required to disclose the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. ASU 2018-13 is effective for interim and annual reporting periods beginning after December 15, 2019. As ASU 2018-13 only revises disclosure requirements, it did not have a material impact on the Company’s consolidated financial statements. Accounting Standards Update 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses of Financial Instruments (“ASU 2016-13”). In June 2016, FASB issued ASU 2016-13. The provisions of ASU 2016-13 requires an entity to utilize a new impairment model known as the current expected credit loss ("CECL") model to estimate its lifetime "expected credit loss" and record an allowance that, when deducted from the amortized cost basis of the financial asset, presents the net amount expected to be collected on the financial asset. The CECL model is expected to result in more timely recognition of credit losses. ASU 2016-13 also requires new disclosures for financial assets measured at amortized cost, loans and available-for sale debt securities. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, including interim periods within those fiscal years. Entities will apply the standard's provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. Management formed an internal, cross functional committee in 2017 to evaluate implementation steps and assess the impact ASU 2016-13 would have on the Company’s consolidated financial statements. The committee assigned roles and responsibilities, key tasks to complete, and established a general time line for implementation. The Company also engaged an outside consultant to assist with the methodology review and data validation, as well as other key aspects of implementing the standard. The committee met periodically to discuss the latest developments and ensure progress was being made. In addition, the committee kept current on evolving interpretations and industry practices related to ASU 2016-13. The committee evaluated and validated data resources and different loss methodologies. Key implementation activities for 2019 included finalization of models, establishing processes and controls, development of supporting analytics and documentation, policies and disclosure, and implementing parallel processing. The Company adopted ASU 2016-13 using the modified retrospective method for financial assets measured at amortized cost effective January 1, 2020. Results for the periods beginning after January 1, 2020 are presented under ASU 2016-13 while prior period amounts are reported in accordance with the previously applicable accounting standards. The Company recorded a reduction to retained earnings of approximately $717,000 upon adoption of ASU 2016-13. The transition adjustment included an increase to the allowance for credit losses on loans of $1.7 million and an increase to the allowance for credit losses on off-balance sheet credit exposure of $69,000 . There was no allowance for credit losses recorded for held-to-maturity debt securities. The transition adjustment included corresponding increases in deferred tax assets. The Company adopted ASU 2016-13 using the prospective transition approach for financial assets considered purchased credit deteriorated ("PCD") that were previously classified as purchase credit impaired (" PCI") and accounted for under ASC 310-30 effective January 1 2020. In accordance with the standard, the Company did not reassess whether the PCI assets met the criteria of PCD assets as of the adoption date. The amortized cost of the PCD assets were adjusted to reflect the addition of $833,000 to the allowance for credit losses. The remaining noncredit discount (based on the adjusted amortized cost) will be accreted into interest income at the effective interest rate over the remaining life of the assets. The following table illustrates the impact of ASU 2016-13 adoption (in thousands): January 1, 2020 As reported under ASU 2016-13 Pre-ASU 2016-13 Adoption Impact of ASU 2016-13 Adoption Assets: Construction & Land Development $ 1,033 $ 1,146 $ (113 ) Farm 1,323 1,093 230 1-4 Family Residential Properties 2,142 1,386 756 Commercial Real Estate 11,739 11,198 541 Agricultural 1,023 1,386 (363 ) Commercial & Industrial 9,428 9,273 155 Consumer 1,895 1,429 466 Allowance for credit losses for all loans $ 28,583 $ 26,911 $ 1,672 Liabilities: Allowance for credit losses on off-balance sheet exposures $ 69 $ — $ 69 The following table illustrates the impact of ASU 2013-13 adoption for PCD assets previously classified as PCI included in the table above (in thousands): January 1, 2020 As reported under ASU 2016-13 Pre-ASU 2016-13 Adoption Impact of ASU 2016-13 Adoption Construction & Land Development $ 291 $ — $ 291 1-4 Family Residential Properties 48 6 42 Commercial Real Estate 818 359 459 Commercial & Industrial 41 — 41 Allowance for credit losses for PCD loans $ 1,198 $ 365 $ 833

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	Earnings Per Share Basic net income per common share available to common stockholders is calculated as net income less preferred stock dividends divided by the weighted average number of common shares outstanding. Diluted net income per common share available to common stockholders is computed using the weighted average number of common shares outstanding, increased by the Company’s stock options, unless anti-dilutive. The components of basic and diluted net income per common share available to common stockholders for the three -month period ended March 31, 2020 and 2019 were as follows: Three months ended March 31, 2020 2019 Basic Net Income per Common Share Available to Common Stockholders: Net income $ 9,999,000 $ 13,316,000 Weighted average common shares outstanding 16,693,183 16,665,999 Basic earnings per common share $ 0.60 $ 0.80 Diluted Net Income per Common Share Available to Common Stockholders: Net income applicable to diluted earnings per share $ 9,999,000 $ 13,316,000 Weighted average common shares outstanding 16,693,183 16,665,999 Dilutive potential common shares: Restricted stock awarded 46,908 38,780 Dilutive potential common shares 46,908 38,780 Diluted weighted average common shares outstanding 16,740,091 16,704,779 Diluted earnings per common share $ 0.60 $ 0.80 There were no shares not considered in computing diluted earnings per share for the three -month periods ended March 31, 2020 and 2019 because they were anti-dilutive.

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The amortized cost, gross unrealized gains and losses and estimated fair values for available-for-sale and held-to-maturity securities by major security type at March 31, 2020 and December 31, 2019 were as follows (in thousands): Amortized Cost Gross Unrealized Gains Gross Unrealized (Losses) Fair Value March 31, 2020 Available-for-sale: U.S. Treasury securities and obligations of U.S. government corporations & agencies $ 56,067 $ 716 $ (94 ) $ 56,689 Obligations of states and political subdivisions 167,146 260 (3,904 ) 163,502 Mortgage-backed securities: GSE residential 385,194 10,717 (400 ) 395,511 Other securities 2,028 112 (41 ) 2,099 Total available-for-sale $ 610,435 $ 11,805 $ (4,439 ) $ 617,801 Held-to-maturity: U.S. Treasury securities and obligations of U.S. government corporations & agencies $ 24,563 $ 243 $ — $ 24,806 December 31, 2019 Available-for-sale: U.S. Treasury securities and obligations of U.S. government corporations & agencies $ 106,428 $ 952 $ (60 ) $ 107,320 Obligations of states and political subdivisions 172,460 5,990 (17 ) 178,433 Mortgage-backed securities: GSE residential 391,307 5,331 (512 ) 396,126 Other securities 4,028 141 — 4,169 Total available-for-sale $ 674,223 $ 12,414 $ (589 ) $ 686,048 Held-to-maturity: U.S. Treasury securities and obligations of U.S. government corporations & agencies $ 69,542 $ 99 $ (69 ) $ 69,572 All of the Company's held-to-maturity securities are government agency-backed securities for which the risk of loss is minimal. As such, as of March 31, 2020 , the Company did not recorded an allowance for credit losses on its held-to-maturity securities. Realized gains and losses resulting from sales of securities were as follows during the three months ended March 31, 2020 and 2019 (in thousands): Three months ended March 31, 2020 2019 Gross gains $ 531 $ 84 Gross losses — (30 ) The following table indicates the expected maturities of investment securities classified as available-for-sale presented at fair value, and held-to-maturity presented at amortized cost, at March 31, 2020 and the weighted average yield for each range of maturities (dollars in thousands): One year or less After 1 through 5 years After 5 through 10 years After ten years Total Available-for-sale: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 41,026 $ 15,663 $ — $ — $ 56,689 Obligations of state and political subdivisions 26,677 69,512 65,164 2,149 163,502 Mortgage-backed securities: GSE residential 73,878 310,186 11,447 — 395,511 Other securities — 1,759 — 340 2,099 Total available-for-sale investments $ 141,581 $ 397,120 $ 76,611 $ 2,489 $ 617,801 Weighted average yield 2.42 % 2.67 % 2.93 % 2.88 % 2.65 % Full tax-equivalent yield 2.63 % 2.87 % 3.93 % 3.79 % 2.96 % Held to Maturity: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 19,536 $ 5,027 $ — $ — $ 24,563 Weighted average yield 1.93 % 2.06 % — % — % 1.96 % Full tax-equivalent yield 1.93 % 2.06 % — % — % 1.96 % The weighted average yields are calculated on the basis of the amortized cost and effective yields weighted for the scheduled maturity of each security. Tax-equivalent yields have been calculated using a 21% tax rate. With the exception of obligations of the U.S. Treasury and other U.S. government agencies and corporations, there were no investment securities of any single issuer, the book value of which exceeded 10% of stockholders' equity at March 31, 2020 . Investment securities carried at approximately $582 million and $688 million at March 31, 2020 and December 31, 2019 , respectively, were pledged to secure public deposits and repurchase agreements and for other purposes as permitted or required by law. The following table presents the aging of gross unrealized losses and fair value by investment category as of March 31, 2020 and December 31, 2019 (in thousands): Less than 12 months 12 months or more Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses March 31, 2020 Available-for-sale: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 5,802 $ (94 ) $ — $ — $ 5,802 $ (94 ) Obligations of states and political subdivisions 119,614 (3,904 ) — — 119,614 (3,904 ) Mortgage-backed securities: GSE residential 51,736 (315 ) 3,679 (85 ) 55,415 (400 ) Other securities 709 (41 ) — — 709 (41 ) Total $ 177,861 $ (4,354 ) $ 3,679 $ (85 ) $ 181,540 $ (4,439 ) December 31, 2019 Available-for-sale: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 23,375 $ (60 ) $ — $ — $ 23,375 $ (60 ) Obligations of states and political subdivisions 3,469 (16 ) 347 (1 ) 3,816 (17 ) Mortgage-backed securities: GSE residential 67,080 (322 ) 20,888 (190 ) 87,968 (512 ) Total $ 93,924 $ (398 ) $ 21,235 $ (191 ) $ 115,159 $ (589 ) Held-to-maturity: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 14,996 $ (25 ) $ 24,565 $ (44 ) $ 39,561 $ (69 ) U.S. Treasury Securities and Obligations of U.S. Government Corporations and Agencies. At March 31, 2020 and December 31, 2019 , there were no available-for sale U.S. Treasury securities and obligations of U.S. government corporations and agencies in a continuous unrealized loss position for twelve months or more. At December 31, 2019 , there were four held-to-maturity U.S. Treasury securities and obligations of U.S. government corporations and agencies with a fair value of $24,565,000 and unrealized losses of $44,000 in a continuous unrealized loss position for twelve months or more. Obligations of states and political subdivisions. At March 31, 2020 , there were no obligations of states and political subdivisions in a continuous loss position for twelve months or more. At December 31, 2019 , there was one obligation of states and political subdivisions with a fair value of $347,000 and unrealized losses of $1,000 in a continuous unrealized loss position for twelve months or more. Mortgage-backed Securities: GSE Residential. At March 31, 2020 , there were five mortgage-backed securities with a fair value of $3,679,000 and unrealized losses of $85,000 in a continuous unrealized loss position for twelve months or more. At December 31, 2019 , there were fourteen mortgage-backed securities with a fair value of $20,888,000 and unrealized losses of $190,000 in a continuous unrealized loss position for twelve months or more. The Company does not believe any other individual unrealized loss as of March 31, 2020 represents other than temporary impairment ("OTTI"). However, given the uncertainty of the financial markets, the Company may be required to recognize OTTI losses in future periods with respect to its available for sale investment securities portfolio. The amount and timing of any additional OTTI will depend on the decline in the underlying cash flows of the securities. Should the impairment of any of these securities become other-than-temporary, the cost basis of the investment will be reduced and the resulting loss recognized in the period the other-than-temporary impairment is identified.

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses	3 Months Ended
	Mar. 31, 2020
Receivables [Abstract]
Loans and Allowance for Loan Losses	Loans and Allowance for Loan Losses Loans are stated at amortized cost net of an allowance for credit losses. Amortized cost is the unpaid principal net of unearned premiums and discounts, and net deferred origination fees and costs. Deferred loan origination fees are reduced by loan origination costs and are amortized to interest income over the life of the related loan using methods that approximated the effective interest rate method. Interest on substantially all loans is credited to income based on the principal amount outstanding. A summary of loans at March 31, 2020 and December 31, 2019 follows (in thousands): March 31, December 31, Construction and land development $ 123,346 $ 94,462 Agricultural real estate 242,541 240,481 1-4 Family residential properties 325,146 336,553 Multifamily residential properties 140,536 155,132 Commercial real estate 1,003,021 997,175 Loans secured by real estate 1,834,590 1,823,803 Agricultural loans 139,014 136,023 Commercial and industrial loans 565,714 528,987 Consumer loans 82,330 83,544 All other loans 123,482 126,807 Total Gross loans 2,745,130 2,699,164 Less: Loans held for sale 1,251 1,820 2,743,879 2,697,344 Less: Net deferred loan fees, premiums and discounts 832 3,817 Allowance for credit losses 32,876 26,911 Net loans $ 2,710,171 $ 2,666,616 Loans expected to be sold are classified as held for sale in the consolidated financial statements and are recorded at the lower of aggregate cost or fair value, taking into consideration future commitments to sell the loans. These loans are primarily for 1-4 family residential properties. Accrued interest on loans, which is excluded from the amortized cost of the balances above, totaled $12.5 million and $12.3 million at March 31, 2020 and December 31, 2019 , respectively. Most of the Company’s business activities are with customers located near the Company's branch locations in Illinois and Missouri. At March 31, 2020 , the Company’s loan portfolio included $381.6 million of loans to borrowers whose businesses are directly related to agriculture. Of this amount, $309.4 million was concentrated in corn and other grain farming. Total loans to borrowers whose businesses are directly related to agriculture increased $5.2 million from $376.4 million at December 31, 2019 due to seasonal timing of cash flow requirements. Loans concentrated in corn and other grain farming increased $7.9 million from $301.5 million at December 31, 2019 . The Company's underwriting practices include collateralization of loans, any extended period of low commodity prices, drought conditions, significantly reduced yields on crops and/or reduced levels of government assistance to the agricultural industry, however these could result in an increase in the level of problem agriculture loans and potentially result in loan losses within the agricultural portfolio. In addition, the Company has $119.7 million of loans to motels and hotels. The performance of these loans is dependent on borrower specific issues as well as the general level of business and personal travel within the region. While the Company adheres to sound underwriting standards, a prolonged period of reduced business or personal travel could result in an increase in nonperforming loans to this business segment and potentially in loan losses. The Company also has $294.6 million of loans to lessors of non-residential buildings, $280.9 million of loans to lessors of residential buildings and dwellings, $108.7 million of loans to nursing care facilities, and $123.4 million of loans to other gambling industries. The structure of the Company’s loan approval process is based on progressively larger lending authorities granted to individual loan officers, loan committees, and ultimately the board of directors. Outstanding balances to one borrower or affiliated borrowers are limited by federal regulation and the vast majority of borrowers are below regulatory thresholds. The Company can occasionally have outstanding balances to one borrower up to but not exceeding the regulatory threshold should underwriting guidelines warrant. The vast majority of the Company’s loans are to businesses located in the geographic market areas served by the Company’s branch bank system. Additionally, a significant portion of the collateral securing the loans in the portfolio is located within the Company’s primary geographic footprint. In general, the Company adheres to loan underwriting standards consistent with industry guidelines for all loan segments. The Company’s lending can be summarized into the following primary areas: Commercial Real Estate Loans. Commercial real estate loans are generally comprised of loans to small business entities to purchase or expand structures in which the business operations are housed, loans to owners of real estate who lease space to non-related commercial entities, loans for construction and land development, loans to hotel operators, and loans to owners of multi-family residential structures, such as apartment buildings. Commercial real estate loans are underwritten based on historical and projected cash flows of the borrower and secondarily on the underlying real estate pledged as collateral on the debt. For the various types of commercial real estate loans, minimum criteria have been established within the Company’s loan policy regarding debt service coverage while maximum limits on loan-to-value and amortization periods have been defined. Maximum loan-to-value ratios range from 65% to 80% depending upon the type of real estate collateral, while the desired minimum debt coverage ratio is 1.20x . Amortization periods for commercial real estate loans are generally limited to twenty years . The Company’s commercial real estate portfolio is well below the thresholds that would designate a concentration in commercial real estate lending, as established by the federal banking regulators. Commercial and Industrial Loans. Commercial and industrial loans are primarily comprised of working capital loans used to purchase inventory and fund accounts receivable that are secured by business assets other than real estate. These loans are generally written for one year or less. Also, equipment financing is provided to businesses with these loans generally limited to 80% of the value of the collateral and amortization periods limited to seven years . Commercial loans are often accompanied by a personal guaranty of the principal owners of a business. Like commercial real estate loans, the underlying cash flow of the business is the primary consideration in the underwriting process. The financial condition of commercial borrowers is monitored at least annually with the type of financial information required determined by the size of the relationship. Measures employed by the Company for businesses with higher risk profiles include the use of government-assisted lending programs through the Small Business Administration and U.S. Department of Agriculture. Agricultural and Agricultural Real Estate Loans. Agricultural loans are generally comprised of seasonal operating lines to cash grain farmers to plant and harvest corn and soybeans and term loans to fund the purchase of equipment. Agricultural real estate loans are primarily comprised of loans for the purchase of farmland. Specific underwriting standards have been established for agricultural-related loans including the establishment of projections for each operating year based on industry developed estimates of farm input costs and expected commodity yields and prices. Operating lines are typically written for one year and secured by the crop. Loan-to-value ratios on loans secured by farmland generally do not exceed 65% and have amortization periods limited to twenty five years . Federal government-assistance lending programs through the Farm Service Agency are used to mitigate the level of credit risk when deemed appropriate. Residential Real Estate Loans. Residential real estate loans generally include loans for the purchase or refinance of residential real estate properties consisting of one-to-four units and home equity loans and lines of credit. The Company sells the vast majority of its long-term fixed rate residential real estate loans to secondary market investors. The Company also releases the servicing of these loans upon sale. The Company retains all residential real estate loans with balloon payment features. Balloon periods are limited to five years . Residential real estate loans are typically underwritten to conform to industry standards including criteria for maximum debt-to-income and loan-to-value ratios as well as minimum credit scores. Loans secured by first liens on residential real estate held in the portfolio typically do not exceed 80% of the value of the collateral and have amortization periods of twenty five years or less. The Company does not originate subprime mortgage loans. Consumer Loans. Consumer loans are primarily comprised of loans to individuals for personal and household purposes such as the purchase of an automobile or other living expenses. Minimum underwriting criteria have been established that consider credit score, debt-to-income ratio, employment history, and collateral coverage. Typically, consumer loans are set up on monthly payments with amortization periods based on the type and age of the collateral. Other Loans. Other loans consist primarily of loans to municipalities to support community projects such as infrastructure improvements or equipment purchases. Underwriting guidelines for these loans are consistent with those established for commercial loans with the additional repayment source of the taxing authority of the municipality. Allowance for Credit Losses The allowance for credit losses represents the Company’s best estimate of the reserve necessary to adequately account for probable losses expected over the remaining contractual life of the assets. The provision for credit losses is the charge against current earnings that is determined by the Company as the amount needed to maintain an adequate allowance for credit losses. In determining the adequacy of the allowance for credit losses, and therefore the provision to be charged to current earnings, the Company relies predominantly on a disciplined credit review and approval process that extends to the full range of the Company’s credit exposure. The review process is directed by the overall lending policy and is intended to identify, at the earliest possible stage, borrowers who might be facing financial difficulty. Factors considered by the Company in evaluating the overall adequacy of the allowance include historical net loan losses, the level and composition of nonaccrual, past due and troubled debt restructurings, trends in volumes and terms of loans, effects of changes in risk selection and underwriting standards or lending practices, lending staff changes, concentrations of credit, industry conditions and the current economic conditions in the region where the Company operates. The Company estimates the appropriate level of allowance for credit losses by evaluating large impaired loans separately from non-impaired loans. Impaired loans The Company individually evaluates certain loans for impairment. In general, these loans have been internally identified via the Company’s loan grading system as credits requiring management’s attention due to underlying problems in the borrower’s business or collateral concerns. This evaluation considers expected future cash flows, the value of collateral and also other factors that may impact the borrower’s ability to make payments when due. For loans greater than $250,000 , and loans identified as troubled debt restructurings, impairment is individually measured each quarter using one of three alternatives: (1) the present value of expected future cash flows discounted at the loan’s effective interest rate; (2) the loan’s observable market price, if available; or (3) the fair value of the collateral less costs to sell for collateral dependent loans and loans for which foreclosure is deemed to be probable. A specific allowance is assigned when expected cash flows or collateral are less than the carrying amount of the loan. The carrying value of the loan reflects reductions from prior charge-offs. Non-Impaired loans Non-impaired loans comprise the vast majority of the Company’s total loan portfolio and include loans in accrual status and those credits not identified as troubled debt restructurings. A small portion of these loans are considered “criticized” due to the risk rating assigned reflecting elevated credit risk due to characteristics, such as a strained cash flow position, associated with the individual borrowers. Criticized loans are those assigned risk ratings of Special Mention, Substandard, or Doubtful. Beginning March 31, 2020, the allowance for credit losses was estimated using the current expected credit loss model ("CECL"). The Company uses the Loss Rate method to estimate the historical loss rate for all non-impaired loans. Under this method, the allowance for credit losses is measured on a collective (pool) basis for non-impaired loans with similar risk characteristics. Historical credit loss experience provides the basis for the estimate of expected credit losses. For each pool, a historical loss rate is computed based on the average remaining contractual life of the pool. Adjustments to historical loss rates are made using qualitative factors relevant to each pool including merger & acquisition activity, economic conditions, changes in policies, procedures & underwriting, and concentrations. In addition, a twelve-month forecast, using reasonable and supportable future conditions, is prepared that is used to estimate expected changes to existing and historical conditions in the current period. The Company also considers specific current economic events occurring globally, in the U.S. and in its local markets. In March 2020, in response to the COVID-19 outbreak, its significant disruptions in the U.S. economy and impacts on local markets, First Mid Bank offered a 90-day commercial deferral program, primarily to hotel and restaurant borrowers. In accordance with interagency guidance issued in March 2020, these short term deferrals are not considered troubled debt restructurings. These deferrals were, however, considered in the factors used to estimate the required allowance for credit losses for non-impaired loans. Other COVID-19 related impacts considered included revenue losses of businesses required to restrict or cease services, income loss to workers laid off as a result of COVID-19 restrictions, various federal and state government stimulus programs and additional deferral programs offered by First Mid Bank beginning in April 2020. Other events considered include the status of trade agreements with China, scheduled increases in minimum wage and changes to the minimum salary threshold for overtime provisions, current and projected unemployment rates, current and projected grain and oil prices and economies of local markets where customers work and operate. Within each pool, risk elements are evaluated that have specific impacts to the borrowers within the pool. These, along with the general risks and events, and the specific lending policies and procedures by loan type described above, are analyzed to estimate the qualitative factors used to adjust the historical loss rates. During the current period, the following assumptions and factors were considered when determining the historical loss rate and any potential adjustments by loan pool. Construction and Land Development Loans. The average life of the construction and land development segment was determined to be twelve months. Historical losses in this segment remained very low. Current activity in this industry was deemed essential and has continued during COVID-19 so no adjustment to the qualitative factor was considered necessary. Farm Loans. The average life of the farm segment was determined to be thirty six months. Historical losses in the segment remain very low. Farmland values have remained steady over an extended period of time and there are no indications that this will change in the next year. There appears to be little or no impact from COVID-19 events on this segment. No adjustments to the qualitative factor was considered necessary. 1- 4 Family Residential Properties Loans. The average life of the 1-4 Family Residential segment was determined to be: Residential Real Estate-non-owner occupied, fifty four months; Residential Real Estate-owner occupied, fifty four months; Home Equity lines of credit, thirty months. COVID-19 has impacted the finances of consumers from layoffs and furloughs resulting from employers have to reduce or suspend operations. Increased risk in this segment includes consumer ability to make mortgage and rent payments. Some of this impact has been offset by governmental actions such as stimulus payments and extended unemployment benefits. First Mid Bank has also offered short-term loan payment deferral to borrowers in this segment. The historical loss rate for this segment declined for the period but was offset by an increase in the qualitative factor to account for these new potential risks. Commercial Real Estate Loans. The average life of the commercial real estate segment was determined to be thirty six months. This segment includes the Company's majority of exposure to the hotel industry which has been significantly impacted by COVID-19 events. Other impacted industries in this segment include restaurants and retail establishments. First Mid Bank has implemented a deferral program for borrowers in this segment in order to ease the impact to these borrowers. In addition to a slight increase in the historical loss rate, the qualitative factor for this segment was increased to account for these new risks. Agricultural Loans. The average life of the agricultural segment was determined to be eighteen months. Losses in this segment are very low, however there was a very slight increase in the historical loss rate. It is believed that borrowers in this segment will benefit from current governmental programs such as PPP and MFP. There does not appear to be impact from COVID-19 at this time. There were no adjustments to the qualitative factor for this period. Commercial and Industrial Loans. The average life of the commercial and industrial segment was determined to be twenty four months. The COVID-19 impacts include forced closures and scaled-back services for many industries within this segment including retailers, restaurants and video gaming establishments. Some of this risk is offset by government relief programs as well as, First Mid Bank's payment deferral program. In addition to an increase in the historical loss rate, the qualitative factor for this segment was increased to account for these new risks. Consumer Loans. The average life of the consumer segment was determined to be thirty six months. The financial status of many borrowers has been impacted by COVID-19 events including layoffs and reduced hours. Some of this impact has been offset by government stimulus programs, increased paid leave and increased and extended unemployment benefits. Additionally, First Mid Bank has offered a short-term payment deferral program. The historical loss rate increased for this period and the qualitative factor for the segment was increased to account for the new risks. Acquired Loans. Prior to January 1, 2020 loans acquired with evidence of credit deterioration since origination and for which it was probable that all contractually required payments would not be collected were considered to be purchased credit impaired at the time of acquisition. Purchase credit-impaired ("PCI") loans were accounted for under ASC 310-30, Receivables--Loans and Debt Securities Acquired with Deteriorated Credit Quality ("ASC 310-30"), and were initially measured at fair value, which included the estimated future credit losses expected to be incurred over the life of the loan. Accordingly, an allowance for credit losses related to these loans was not carried over and recorded at the acquisition date. The cash flows expected to be collected were estimated using current key assumptions, such as default rates, value of underlying collateral, severity and prepayment speeds. Subsequent to January 1, 2020, loans acquired in a business combination that have experienced more-than-insignificant deterioration in credit quality since origination are considered purchased credit deteriorated (“PCD”) loans. At the acquisition date, an estimate of expected credit losses is made for groups of PCD loans with similar risk characteristics and individual PCD loans without similar risk characteristics. This initial allowance for credit losses is allocated to individual PCD loans and added to the purchase price or acquisition date fair values to establish the initial amortized cost basis of the PCD loans. As the initial allowance for credit losses is added to the purchase price, there is no credit loss expense recognized upon acquisition of a PCD loan. Any difference between the unpaid principal balance of PCD loans and the amortized cost basis is considered to relate to noncredit factors and results in a discount or premium. Discounts and premiums are recognized through interest income on a level-yield method over the life of the loans. All loans considered to be PCI prior to January 1, 2020 were converted to PCD on that date. Accordingly, on January 1, 2020, the amortized cost basis of the PCD loans were adjusted to reflect the addition of $833,000 to the allowance for credit losses. For acquired loans not deemed purchased credit deteriorated at acquisition, the differences between the initial fair value and the unpaid principal balance are recognized as interest income on a level-yield basis over the lives of the related loans. At the acquisition date, an initial allowance for expected credit losses is estimated and recorded as credit loss expense. The subsequent measurement of expected credit losses for all acquired loans is the same as the subsequent measurement of expected credit losses for originated loans. The following tables present the activity in the allowance for credit losses based on portfolio segment for the three -months ended March 31, 2020 (in thousands): Construction & Land Development Agricultural Real Estate 1-4 Family Residential Properties Commercial Real Estate Agricultural Loans Commercial & Industrial Consumer Loans Total Three months ended March 31, 2020 Beginning Balance (prior to adoption of ASU 2016-13) $ 1,146 $ 1,093 $ 1,386 $ 11,198 $ 1,386 $ 9,273 $ 1,429 $ 26,911 Impact of adopting ASU 2016-13 (113 ) 230 756 541 (363 ) 155 466 1,672 Provision for credit loss expense 587 12 (77 ) 1,961 41 2,815 142 5,481 Loans charged off — — 196 84 — 972 171 1,423 Recoveries collected — — 62 5 — 23 145 235 Ending balance $ 1,620 $ 1,335 $ 1,931 $ 13,621 $ 1,064 $ 11,294 $ 2,011 $ 32,876 Prior to the adoption of ASU 2016-13, the appropriate level of the allowance for loan losses for all non-impaired loans was based on a migration analysis of net losses over a rolling twelve quarter period by loan segment. A weighted average of the net losses was determined by assigning more weight to the most recent quarters in order to recognize current risk factors influencing the various segments of the loan portfolio more prominently than past periods. Due to weakened economic conditions during historical years, the Company established qualitative factor adjustments for each of the loan segments at levels above the historical net loss averages. Some of the economic factors included the potential for reduced cash flow for commercial operating loans from reduction in sales or increased operating costs, decreased occupancy rates for commercial buildings, reduced levels of home sales for commercial land developments, the uncertainty regarding grain prices and increased operating costs for farmers, and increased levels of unemployment and bankruptcy impacting consumer’s ability to pay. Each of these economic uncertainties was taken into consideration in developing the level of the allowance for loan losses. The following tables present the activity in the allowance for credit losses based on portfolio segment for the three -months ended March 31, 2019 and for the year ended December 31, 2019 (in thousands): Construction & Land Development Agricultural Real Estate 1-4 Family Residential Properties Commercial Real Estate Agricultural Loans Commercial & Industrial Consumer Loans Total Three months ended March 31, 2019 Beginning Balance (prior to adoption of ASU 2016-13) $ 561 $ 1,246 $ 1,504 $ 11,102 $ 951 $ 9,893 $ 932 $ 26,189 Provision for credit loss expense (9 ) 36 (41 ) (481 ) 188 1,013 241 947 Loans charged off — — 130 56 9 104 269 568 Recoveries collected — — 8 — — 28 100 136 Ending balance $ 552 $ 1,282 $ 1,341 $ 10,565 $ 1,130 $ 10,830 $ 1,004 $ 26,704 Construction & Land Development Agricultural Real Estate 1-4 Family Residential Properties Commercial Real Estate Agricultural Loans Commercial & Industrial Consumer Loans Total Twelve months ended December 31, 2019 Beginning Balance (prior to adoption of ASU 2016-13) $ 561 $ 1,246 $ 1,504 $ 11,102 $ 951 $ 9,893 $ 932 $ 26,189 Provision for credit loss expense 585 (153 ) 1,268 1,827 459 1,053 1,394 6,433 Loans charged off — — 1,477 1,743 24 1,828 1,254 6,326 Recoveries collected — — 91 12 — 155 357 615 Ending balance $ 1,146 $ 1,093 $ 1,386 $ 11,198 $ 1,386 $ 9,273 $ 1,429 $ 26,911 Consistent with regulatory guidance, charge-offs on all loan segments are taken when specific loans, or portions thereof, are considered uncollectible. The Company’s policy is to promptly charge these loans off in the period the uncollectible loss is reasonably determined. For all loan portfolio segments except 1-4 family residential properties and consumer, the Company promptly charges-off loans, or portions thereof, when available information confirms that specific loans are uncollectible based on information that includes, but is not limited to, (1) the deteriorating financial condition of the borrower, (2) declining collateral values, and/or (3) legal action, including bankruptcy, that impairs the borrower’s ability to adequately meet its obligations. For impaired loans that are considered to be solely collateral dependent, a partial charge-off is recorded when a loss has been confirmed by an updated appraisal or other appropriate valuation of the collateral. The Company charges-off 1-4 family residential and consumer loans, or portions thereof, when the Company reasonably determines the amount of the loss. The Company adheres to timeframes established by applicable regulatory guidance which provides for the charge-down of 1-4 family first and junior lien mortgages to the net realizable value less costs to sell when the loan is 180 days past due, charge-off of unsecured open-end loans when the loan is 180 days past due, and charge down to the net realizable value when other secured loans are 120 days past due. Loans at these respective delinquency thresholds for which the Company can clearly document that the loan is both well-secured and in the process of collection, such that collection will occur regardless of delinquency status, need not be charged off. The following table presents the amortized cost basis of collateral-dependent loans by class of loans that were individually evaluated to determine expected credit losses, and the related allowance for credit losses, as of March 31, 2020 (in thousands): Collateral Allowance for Credit Losses Real Estate Business Assets Other Total Construction and land development $ 540 $ — $ — $ 540 $ 269 Agricultural real estate 150 — — 150 — 1-4 Family residential properties 3,875 — — 3,875 203 Multifamily residential properties 3,060 — — 3,060 17 Commercial real estate 6,494 — — 6,494 1,029 Loans secured by real estate 14,119 — — 14,119 1,518 Agricultural loans 239 40 — 279 — Commercial and industrial loans 327 3,788 19 4,134 312 Consumer loans — — 11 11 1 Total loans $ 14,685 $ 3,828 $ 30 $ 18,543 $ 1,831 Credit Quality The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, collateral support, credit documentation, public information, and current economic trends, among other factors. The Company analyzes loans individually by classifying the loans as to credit risk. This analysis is performed on a continuous basis. The Company uses the following definitions for risk ratings which are commensurate with a loan considered “criticized”: Special Mention. Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution’s credit position at some future date. Substandard. Loans classified as substandard are inadequately protected by the current sound-worthiness and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected. Doubtful. Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing factors, conditions and values, highly questionable and improbable. Loans not meeting the criteria above that are analyzed individually as part of the above described process are considered pass rated loans. The following tables present the credit risk profile of the Company’s loan portfolio based on risk rating category and year of origination as of March 31, 2020 (in thousands): Risk Rating 2020 2019 2018 2017 2016 Prior Revolving Loans Total March 31, 2020 Construction & Land Development Loans Pass $ 47,279 $ 57,767 $ 4,912 $ 2,931 $ 604 $ 6,722 $ — $ 120,215 Special Mention — 309 1,796 — 393 15 — 2,513 Substandard — — — 540 — 58 — 598 Total $ 47,279 $ 58,076 $ 6,708 $ 3,471 $ 997 $ 6,795 $ — $ 123,326 Agricultural Real Estate Loans Pass $ 12,868 $ 44,321 $ 48,157 $ 20,904 $ 16,689 $ 87,879 $ — $ 230,818 Special Mention 275 3,008 2,512 — 1,088 3,444 — 10,327 Substandard — 150 859 197 31 509 — 1,746 Total $ 13,143 $ 47,479 $ 51,528 $ 21,101 $ 17,808 $ 91,832 $ — $ 242,891 1-4 Family Residential Property Loans Pass $ 9,125 $ 32,088 $ 33,208 $ 28,598 $ 29,270 $ 128,255 $ 44,251 $ 304,795 Watch 154 335 325 1,055 254 1,929 256 4,308 Substandard 56 374 2,075 2,091 2,053 8,138 1,238 16,025 Total $ 9,335 $ 32,797 $ 35,608 $ 31,744 $ 31,577 $ 138,322 $ 45,745 $ 325,128 Commercial Real Estate Loans Pass $ 49,604 $ 208,865 $ 178,757 $ 208,454 $ 179,026 $ 271,285 $ — $ 1,095,991 Special Mention 61 24 2,857 1,795 4,912 4,109 — 13,758 Substandard 1,257 127 1,406 4,287 4,573 21,203 — 32,853 Total $ 50,922 $ 209,016 $ 183,020 $ 214,536 $ 188,511 $ 296,597 $ — $ 1,142,602 Agricultural Loans Pass $ 32,007 $ 79,071 $ 11,469 $ 3,914 $ 1,732 $ 4,780 $ — $ 132,973 Special Mention 838 3,320 364 — 81 274 — 4,877 Substandard 232 205 213 513 — 123 — 1,286 Total $ 33,077 $ 82,596 $ 12,046 $ 4,427 $ 1,813 $ 5,177 $ — $ 139,136 Commercial & Industrial Loans Pass $ 83,001 $ 165,672 $ 113,733 $ 92,434 $ 52,819 $ 131,520 $ — $ 639,179 Special Mention 10 33,495 257 241 2,054 4,984 — 41,041 Substandard 329 2,339 463 1,475 430 3,855 — 8,891 Total $ 83,340 $ 201,506 $ 114,453 $ 94,150 $ 55,303 $ 140,359 $ — $ 689,111 Consumer Loans Pass $ 8,211 $ 31,924 $ 20,386 $ 12,441 $ 5,878 $ 2,236 $ — $ 81,076 Special Mention 27 68 50 10 57 22 — 234 Substandard — 47 184 185 179 199 — 794 Total $ 8,238 $ 32,039 $ 20,620 $ 12,636 $ 6,114 $ 2,457 $ — $ 82,104 Total Loans Pass $ 242,095 $ 619,708 $ 410,622 $ 369,676 $ — $ 286,018 $ 632,677 $ 44,251 $ 2,605,047 Special Mention 1,365 40,559 8,161 3,101 8,839 14,777 256 77,058 Substandard 1,874 3,242 5,200 9,288 7,266 34,085 1,238 62,193 Total $ 245,334 $ 663,509 $ 423,983 $ 382,065 $ 302,123 $ 681,539 $ 45,745 $ 2,744,298 The following tables present the credit risk profile of the Company’s loan portfolio based on risk rating category and year of origination as of December 31, 2019 (in thousands): December 31, 2019 Pass Special Mention Substandard Total Construction & lan

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Notes)	3 Months Ended
	Mar. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Text Block]	Goodwill and Intangible Assets The Company has goodwill from business combinations, intangible assets from branch acquisitions, identifiable intangible assets assigned to core deposit relationships and customer lists of First Mid Insurance. The following table presents gross carrying value and accumulated amortization by major intangible asset class as of March 31, 2020 and December 31, 2019 (in thousands): March 31, 2020 December 31, 2019 Gross Carrying Value Accumulated Amortization Gross Carrying Value Accumulated Amortization Goodwill not subject to amortization (effective 1/1/02) $ 108,752 $ 3,760 $ 108,752 $ 3,760 Intangibles from branch acquisition 3,015 3,015 3,015 3,015 Core deposit intangibles 32,355 18,589 32,355 17,746 Other intangibles 16,389 4,244 16,129 3,917 $ 160,511 $ 29,608 $ 160,251 $ 28,438 The Company has mortgage servicing rights acquired in previous acquisitions. The following table summarizes the activity pertaining to mortgage servicing rights included in intangible assets as of March 31, 2020 , March 31, 2019 and December 31, 2019 (in thousands): March 31, 2020 March 31, 2019 December 31, 2019 Beginning Balance $ 1,444 $ 2,101 $ 2,101 Mortgage servicing rights acquired during period — — — Mortgage servicing rights capitalized — — — Valuation reserve (18 ) — (380 ) Mortgage servicing rights amortized (126 ) (58 ) (411 ) I/O Strip (4 ) — 134 Ending Balance $ 1,296 $ 2,043 $ 1,444 Total amortization expense for the three months ended March 31, 2020 and 2019 was as follows (in thousands): Three months ended March 31, 2020 2019 Core deposit intangibles $ 843 $ 980 Customer list intangibles 326 318 Mortgage servicing rights 126 58 $ 1,295 $ 1,356 Aggregate amortization expense for the current year and estimated amortization expense for each of the five succeeding years is shown in the table below (in thousands): Aggregate amortization expense: For period 01/01/20-3/31/20 $ 1,295 Estimated amortization expense: For period 4/01/20-12/31/20 3,674 For year ended 12/31/20 4,285 For year ended 12/31/21 3,919 For year ended 12/31/22 3,498 For year ended 12/31/23 2,946 For year ended 12/31/24 2,633 In accordance with the provisions of SFAS No. 142, “ Goodwill and Other Intangible Assets ,” codified within ASC 350, the Company performed testing of goodwill for impairment as of September 30, 2019 and determined that, as of that date, goodwill was not impaired. Management also concluded that the remaining amounts and amortization periods were appropriate for all intangible assets.

Repurchase Agreements and Other

Repurchase Agreements and Other Borrowings	3 Months Ended
	Mar. 31, 2020
Repurchase Agreements and Other Borrowings [Abstract]
Repurchase Agreements and Other Borrowings [Text Block]	Repurchase Agreements and Other Borrowings Securities sold under agreements to repurchase were $231.6 million at March 31, 2020 , a increase of $23.5 million from $208.1 million at December 31, 2019 . The increase during the first three months of 2020 was primarily due to changes in business cash flow needs. All of the transactions have overnight maturities with a weighted average rate of 0.12% . The right of setoff for a repurchase agreement resembles a secured borrowing, whereby the collateral pledged by the Company would be used to settle the fair value of the repurchase agreement should the Company be in default (e.g., declare bankruptcy), the Company could cancel the repurchase agreement (i.e., cease payment of principal and interest), and attempt collection on the amount of collateral value in excess of the repurchase agreement fair value. The collateral is held by a third party financial institution in the counterparty's custodial account. The counterparty has the right to sell or repledge the investment securities. For government entity repurchase agreements, the collateral is held by the Company in a segregated custodial account under a tri-party agreement. The Company is required by the counterparty to maintain adequate collateral levels. In the event the collateral fair value falls below stipulated levels, the Company will pledge additional securities. The Company closely monitors collateral levels to ensure adequate levels are maintained, while mitigating the potential of over-collateralization in the event of counterparty default. Collateral pledged by class for repurchase agreements are as follows (in thousands): March 31, 2020 December 31, 2019 US Treasury securities and obligations of U.S. government corporations & agencies $ 36,437 $ 77,333 Obligations of states and political subdivisions — 2,375 Mortgage-backed securities: GSE: residential 194,144 128,401 Other Securities 1,068 — Total $ 231,649 $ 208,109 FHLB borrowings were $120 million and $114 million at March 31, 2020 and December 31, 2019 , respectively. At March 31, 2020 the advances were as follows: Advance Term (in years) Interest Rate Maturity Date $ 5,000,000 4.0 1.79% April 13, 2020 10,000,000 1.5 2.95% May 29, 2020 5,000,000 2.0 2.75% June 26, 2020 5,000,000 3.0 1.75% July 31, 2020 5,000,000 6.0 2.30% August 24, 2020 5,000,000 3.5 1.83% February 1, 2021 5,000,000 5.0 1.85% April 12, 2021 5,000,000 7.0 2.55% October 1, 2021 5,000,000 5.0 2.71% March 21, 2022 5,000,000 8.0 2.40% January 9, 2023 5,000,000 3.5 1.51% July 31, 2023 5,000,000 3.5 0.77% September 11, 2023 10,000,000 5.0 1.45% December 31, 2024 5,000,000 5.0 0.91% March 10, 2025 5,000,000 10.0 1.14% October 3, 2029 5,000,000 10.0 1.15% October 3, 2029 5,000,000 10.0 1.12% October 3, 2029 10,000,000 10.0 1.39% December 31, 2029 15,000,000 10.0 1.41% December 31, 2029

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities	Fair Value of Assets and Liabilities Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements must maximize the use of observable inputs and minimize the use of unobservable inputs. There is a hierarchy of three levels of inputs that may be used to measure fair value: Level 1 Valuations for assets and liabilities traded in active exchange markets, such as the New York Stock Exchange. Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities. Level 2 Valuations for assets and liabilities traded in less active dealer or broker markets. Valuations are obtained from third party pricing services for identical or comparable assets or liabilities which use observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in active markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Following is a description of the inputs and valuation methodologies used for assets measured at fair value on a recurring basis and recognized in the accompanying balance sheets, as well as the general classification of such assets pursuant to the valuation hierarchy. Available-for-Sale Securities. The fair value of available-for-sale securities is determined by various valuation methodologies. Where quoted market prices are available in an active market, securities are classified within Level 1. If quoted market prices are not available, then fair values are estimated by using quoted prices of securities with similar characteristics or independent asset pricing services and pricing models, the inputs of which are market-based or independent sources of market parameters, including but not limited to, yield curves, interest rates, volatilities, prepayments, defaults, cumulative loss projections and cash flows. Such securities are classified in Level 2 of the valuation hierarchy. In certain cases where Level 1 or Level 2 inputs are not available, securities are classified within Level 3 of the hierarchy. Fair value determinations for Level 3 measurements of securities are the responsibility of the Treasury function of the Company. The Company contracts with a pricing specialist to generate fair value estimates on a monthly basis. The Treasury function of the Company challenges the reasonableness of the assumptions used and reviews the methodology to ensure the estimated fair value complies with accounting standards generally accepted in the United States, analyzes the changes in fair value and compares these changes to internally developed expectations and monitors these changes for appropriateness. Derivatives. The fair value of derivatives is based on models using observable market data as of the measurement date and are therefore classified in Level 2 of the valuation hierarchy. The following table presents the Company’s assets and liabilities that are measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fall as of March 31, 2020 and December 31, 2019 (in thousands): Fair Value Measurements Using Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2020 Available-for-sale securities: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 56,689 $ — $ 56,689 $ — Obligations of states and political subdivisions 163,502 — 162,712 790 Mortgage-backed securities 395,511 — 395,511 — Other securities 2,099 146 1,953 — Total available-for-sale securities 617,801 146 616,865 790 Derivative assets: Interest rate swaps 1,002 — 1,002 — $ 618,803 $ 146 $ 617,867 $ 790 Derivative liabilities: Interest rate swaps $ 2,710 $ — $ 2,710 $ — December 31, 2019 Available-for-sale securities: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 107,320 $ — $ 107,320 $ — Obligations of states and political subdivisions 178,433 — 177,460 973 Mortgage-backed securities 396,126 — 396,126 — Other securities 4,169 219 3,950 — Total available-for-sale securities $ 686,048 $ 219 $ 684,856 $ 973 Derivative liabilities: Interest rate swaps $ 325 $ — $ 325 $ — The change in fair value of assets measured on a recurring basis using significant unobservable inputs (Level 3) for the three months ended March 31, 2020 and 2019 is summarized as follows (in thousands): Obligation of State and Political Subdivisions Three months ended March 31, 2020 March 31, 2019 Beginning balance $ 973 $ 967 Transfers into Level 3 — — Transfers out of Level 3 — — Total gains or losses: Included in net income 1 1 Included in other comprehensive income (loss) — — Purchases, issuances, sales and settlements: Purchases — — Issuances — — Sales (184 ) — Settlements — — Ending balance $ 790 $ 968 Total gains or losses for the period included in net income attributable to the change in unrealized gains or losses related to assets and liabilities still held at the reporting date $ — $ — Following is a description of the valuation methodologies used for assets measured at fair value on a nonrecurring basis and recognized in the accompanying balance sheets, as well as the general classification of such assets pursuant to the valuation hierarchy. Impaired Loans (Collateral Dependent). Loans for which it is probable that the Company will not collect all principal and interest due according to contractual terms are measured for impairment. Allowable methods for determining the amount of impairment and estimating fair value include using the fair value of the collateral for collateral dependent loans. If the impaired loan is identified as collateral dependent, then the fair value method of measuring the amount of impairment is utilized. This method requires obtaining a current independent appraisal of the collateral and applying a discount factor to the value. Impaired loans that are collateral dependent are classified within Level 3 of the fair value hierarchy when impairment is determined using the fair value method. Management establishes a specific allowance for impaired loans that have an estimated fair value that is below the carrying value. The total carrying amount of loans for which a change in specific allowance has occurred as of March 31, 2020 was $11,124,000 and a fair value of $9,514,000 resulting in specific loss exposures of $1,610,000 . When there is little prospect of collecting principal or interest, loans, or portions of loans, may be charged-off to the allowance for loan losses. Losses are recognized in the period an obligation becomes uncollectible. The recognition of a loss does not mean that the loan has absolutely no recovery or salvage value, but rather that it is not practical or desirable to defer writing off the loan even though partial recovery may be affected in the future. Foreclosed Assets Held For Sale. Other real estate owned acquired through loan foreclosure are initially recorded at fair value less costs to sell when acquired, establishing a new cost basis. The adjustment at the time of foreclosure is recorded through the allowance for loan losses. Due to the subjective nature of establishing the fair value when the asset is acquired, the actual fair value of the other real estate owned or foreclosed asset could differ from the original estimate. If it is determined that fair value declines subsequent to foreclosure, a valuation allowance is recorded through noninterest expense. Operating costs associated with the assets after acquisition are also recorded as noninterest expense. Gains and losses on the disposition of other real estate owned and foreclosed assets are netted and posted to other noninterest expense. The total carrying amount of other real estate owned as of March 31, 2020 was $2,784,000 . Other real estate owned included in the total carrying amount and measured at fair value on a nonrecurring basis during the period amounted to $160,000 . Mortgage Servicing Rights. As of March 31, 2020 , mortgage servicing rights had a carrying value of $1,564,000 and a fair value of $1,296,000 resulting in a valuation reserve of $268,000 . The fair value used to determine the valuation reserve for mortgage servicing rights was estimated using the discounted cash flow models. Due to the nature of the valuation inputs, mortgage servicing rights are classified within Level 3 of the fair value hierarchy. The following table presents the fair value measurement of assets measured at fair value on a nonrecurring basis and the level within the fair value hierarchy in which the fair value measurements fall at March 31, 2020 and December 31, 2019 (in thousands): Fair Value Measurements Using Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2020 Impaired loans (collateral dependent) $ 9,514 $ — $ — $ 9,514 Foreclosed assets held for sale 160 — — 160 Mortgage servicing rights 1,296 — — 1,296 December 31, 2019 Impaired loans (collateral dependent) $ 12,727 $ — $ — $ 12,727 Foreclosed assets held for sale 935 — — 935 Mortgage servicing rights 1,444 — — 1,444 Sensitivity of Significant Unobservable Inputs The following table presents quantitative information about unobservable inputs used in recurring and nonrecurring Level 3 fair value measurements other than goodwill at March 31, 2020 and December 31, 2019 (in thousands). March 31, 2020 Fair Value Valuation Technique Unobservable Inputs Range (Weighted Average) Impaired loans (collateral dependent) $ 9,514 Third party valuations Discount to reflect realizable value 0 % - 40% ( 20% ) Foreclosed assets held for sale 160 Third party valuations Discount to reflect realizable value less estimated selling costs 0 % - 40% ( 35% ) Mortgage servicing rights 1,296 Third party valuations Discount to reflect realizable value 9.0 % - 11.0% ( 9.1% ) December 31, 2019 Fair Value Valuation Technique Unobservable Inputs Range (Weighted Average) Impaired loans (collateral dependent) $ 12,727 Third party valuations Discount to reflect realizable value 0 % - 40% ( 20% ) Foreclosed assets held for sale 935 Third party valuations Discount to reflect realizable value less estimated selling costs 0 % - 40% ( 35% ) Mortgage servicing rights 1,444 Third party valuations Discount to reflect realizable value 9.5 % - 12.5% ( 9.7% ) The following tables present estimated fair values of the Company’s financial instruments at March 31, 2020 and December 31, 2019 in accordance with ASC 825 (in thousands): Carrying Amount Fair Value Level 1 Level 2 Level 3 March 31, 2020 Financial Assets Cash and due from banks $ 181,100 $ 181,100 $ 181,100 $ — $ — Federal funds sold 927 927 927 — — Certificates of deposit investments 4,380 4,380 — 4,380 — Available-for-sale securities 617,801 617,801 146 616,865 790 Held-to-maturity securities 24,563 24,806 — 24,806 — Loans held for sale 1,251 1,251 — 1,251 — Loans net of allowance for loan losses 2,710,171 2,627,881 — — 2,627,881 Interest receivable 15,422 15,422 — 15,422 — Federal Reserve Bank stock 9,401 9,401 — 9,401 — Federal Home Loan Bank stock 5,450 5,450 — 5,450 — Financial Liabilities Deposits $ 2,908,627 $ 2,920,736 $ — $ 2,353,150 $ 567,586 Securities sold under agreements to repurchase 231,649 231,699 — 231,699 — Interest payable 2,029 2,029 — 2,029 — Federal Home Loan Bank borrowings 119,921 124,463 — 124,463 — Other borrowings 5,000 5,000 — 5,000 — Junior subordinated debentures 18,900 14,632 — 14,632 — December 31, 2019 Financial Assets Cash and due from banks $ 84,154 $ 84,154 $ 84,154 $ — $ — Federal funds sold 926 926 926 — — Certificates of deposit investments 4,625 4,625 — 4,625 — Available-for-sale securities 686,048 686,048 219 684,856 973 Held-to-maturity securities 69,542 69,572 — 69,572 — Loans held for sale 1,820 1,820 — 1,820 — Loans net of allowance for loan losses 2,666,616 2,622,053 — — 2,622,053 Interest receivable 15,577 15,577 — 15,577 — Federal Reserve Bank stock 9,401 9,401 — 9,401 — Federal Home Loan Bank stock 4,105 4,105 — 4,105 — Financial Liabilities Deposits $ 2,917,366 $ 2,924,144 $ — $ 2,332,866 $ 591,278 Securities sold under agreements to repurchase 208,109 208,016 — 208,016 — Interest payable 2,261 2,261 — 2,261 — Federal Home Loan Bank borrowings 113,895 114,510 — 114,510 — Other borrowings 5,000 5,000 5,000 — — Junior subordinated debentures 18,858 15,596 — 15,596 —

Leases Leases

Leases Leases	3 Months Ended
	Mar. 31, 2020
Leases [Abstract]
Leases of Lessee Disclosure [Text Block]	Leases Effective January 1, 2019, the Company adopted ASU 2016-02, Leases (Topic 842). As of March 31, 2020 , substantially all of the Company's leases are operating leases for real estate property for bank branches, ATM locations, and office space. These leases are generally for periods of 1 to 25 years with various renewal options. The Company elected the optional transition method permitted by Topic 842. Under this method, the Company recognizes and measures leases that exist at the application date and prior comparative periods are not adjusted. In addition, the Company elected the package of practical expedients: 1. An entity need not reassess whether any expired or existing contracts contain leases. 2. An entity need not reassess the lease classification for any expired or existing leases. 3. An entity need not reassess initial direct costs for any existing leases. The Company has also elected the practical expedient, which may be elected separately or in conjunction with the package noted above, to use hindsight in determining the lease term and in assessing the right-of-use assets. This expedient must be applied consistently to all leases. Lastly, the Company has elected to use the practical expedient to include both lease and non-lease components as a single component and account for it as a lease. In addition, The Company has elected to not include short-term leases (i.e.leases with terms of twelve months or less) or equipment leases (primarily copiers) deemed immaterial, on the consolidated balance sheets. For leases in effect at January 1, 2019 and for leases commencing thereafter, the Company recognizes a lease liability and a right-of-use asset, based on the present value of lease payments over the lease term. The discount rate used in determining present value was the Company's incremental borrowing rate which is the FHLB fixed advance rate based on the remaining lease term as of January 1, 2019, or the commencement date for leases subsequently entered into. The following table contains supplemental balance sheet information related to leases (dollars in thousands): March 31, 2020 December 31, 2019 Operating lease right-of-use assets $ 16,542 $ 17,006 Operating lease liabilities 16,568 17,007 Weighted-average remaining lease term 7.1 years 7.3 years Weighted-average discount rate 3.08 % 3.07 % Certain of the Company's leases contain options to renew the lease; however, not all renewal options are included in the calculation of lease liabilities as they are not reasonably certain to be exercised. The Company's leases do not contain residual value guarantees or material variable lease payments. The Company does not have any other material restrictions or covenants imposed by leases that would impact the Company's ability to pay dividends or cause the Company to incur additional financial obligations. Maturities of lease liabilities were as follows (in thousands): Year ending December 31, 2020 $ 2,476 2021 2,391 2022 2,099 2023 1,849 2024 1,407 Thereafter 9,085 Total lease payments 19,307 Less imputed interest (2,739 ) Total lease liability $ 16,568 The components of lease expense for the three months ended March 31, 2020 and 2019 were as follows (in thousands): Thee months ended March 31, 2020 2019 Operating lease cost $ 642 $ 671 Short-term lease cost 46 23 Variable lease cost 169 224 Total lease cost 857 918 Income from subleases (193 ) (248 ) Net lease cost $ 664 $ 670 As the Company elected not to separate lease and non-lease components, the variable lease cost primarily represents variable payment such as common area maintenance and copier expense. The Company does not have any material sub-lease agreements. Cash paid for amounts included in the measurement of lease liabilities was (in thousands): March 31, 2020 March 31, 2019 Operating cash flows from operating leases $ 677 664

Derivatives (Notes)

Derivatives (Notes)	3 Months Ended
	Mar. 31, 2020
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Instruments and Hedging Activities Disclosure [Text Block]	Derivatives The Company utilizes an interest rate swap, designated as a fair value hedge, to mitigate the risk of changing interest rates on the fair value of a fixed rate commercial real estate loan. For derivative instruments that are designed and qualify as a fair value hedge, the gain or loss on the derivative instrument, as well as the offsetting loss or gain in the hedged asset attributable to the hedged risk, is recognized in current earnings. Derivatives Designated as Hedging Instruments The following table provides the outstanding notional balances and fair values of outstanding derivatives designated as hedging instruments as of March 31, 2020 and December 31, 2019 (in thousands): Balance Sheet Location Weighted Average Remaining Maturity (Years) Notional Amount Estimated Value March 31, 2020 Fair Value Hedges: Interest rate swap agreements Other liabilities 9.1 years $ 14,694 $ (1,709 ) December 31, 2019 Fair Value Hedges: Interest rate swap agreements Other liabilities 9.3 years $ 14,748 $ (325 ) The effects of the fair value hedges on the Company's income statement during the three months ended March 31, 2020 were as follows (in thousands): Three months ended March 31, Derivative Location of Gain (Loss) on Derivative 2020 2019 Interest rate swap agreements Interest income on loans $ (1,384 ) — Three months ended March 31, Derivative Location of Gain (Loss) on Hedged Item 2020 2019 Interest rate swap agreements Interest income on loans $ 1,384 — As of March 31, 2020 , the following amounts were recorded on the consolidated balance sheet related to cumulative basis adjustment for fair value hedges (in thousands): Line Item in the Balance Sheet in Which the Hedge Item is Included Carrying Amount of the Hedged Asset Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset Loans $ 12,985 $ 1,709 Derivatives Not Designated as Hedging Instruments The following amounts represent the notional amounts and gross fair value of derivative contracts not designated as hedging instruments outstanding during the three months ended March 31, 2020 (in thousands): March 31, 2020 Balance Sheet Location Weighted Average Remaining Maturity (Years) Notional Amount Estimated Value Interest rate swap agreements Other assets 9.2 years $ 31,490 $ 1,002 Interest rate swap agreements Other liabilities 9.2 years $ 31,490 $ (1,002 )

Basis of Accounting and Conso_2

Basis of Accounting and Consolidation (Tables)	3 Months Ended
	Mar. 31, 2020
New Accounting Pronouncement Or Change In Accounting Principal Effect Of Change On Financing Receivable Allowance For Credit Losses [Line Items]
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]	The components of accumulated other comprehensive income (loss) included in stockholders’ equity as of March 31, 2020 and December 31, 2019 are as follows (in thousands): Unrealized Gain (Loss) on Securities March 31, 2020 Net unrealized gains on securities available-for-sale $ 7,366 Unamortized losses on held-to-maturity securities transferred from available-for-sale (30 ) Tax expense (2,127 ) Balance at March 31, 2020 $ 5,209 December 31, 2019 Net unrealized gains on securities available-for-sale $ 11,825 Unamortized losses on held-to-maturity securities transferred from available-for-sale (50 ) Tax Expense (3,415 ) Balance at December 31, 2019 $ 8,360
Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income [Table Text Block]	Amounts reclassified from accumulated other comprehensive income and the affected line items in the statements of income during the three months ended March 31, 2020 and 2019 , were as follows (in thousands): Amounts Reclassified from Other Comprehensive Income Affected Line Item in the Statements of Income Three months ended March 31, 2020 2019 Realized gains on available-for-sale securities $ 531 $ 54 Securities gains, net Tax effect (154 ) (16 ) Income taxes Total reclassifications out of accumulated other comprehensive income $ 377 $ 38 Net reclassified amount
Accounting Standards Update 2016-13 [Member]
New Accounting Pronouncement Or Change In Accounting Principal Effect Of Change On Financing Receivable Allowance For Credit Losses [Line Items]
New Accounting Pronouncement Effect Of Change On Financing Receivable Allowance For Credit Losses [Table Text Block]	The following table illustrates the impact of ASU 2016-13 adoption (in thousands): January 1, 2020 As reported under ASU 2016-13 Pre-ASU 2016-13 Adoption Impact of ASU 2016-13 Adoption Assets: Construction & Land Development $ 1,033 $ 1,146 $ (113 ) Farm 1,323 1,093 230 1-4 Family Residential Properties 2,142 1,386 756 Commercial Real Estate 11,739 11,198 541 Agricultural 1,023 1,386 (363 ) Commercial & Industrial 9,428 9,273 155 Consumer 1,895 1,429 466 Allowance for credit losses for all loans $ 28,583 $ 26,911 $ 1,672 Liabilities: Allowance for credit losses on off-balance sheet exposures $ 69 $ — $ 69
New Accounting Pronouncement Effect Of Change On Financing Receivable, Purchased With Credit Deterioration, Allowance For Credit Losses [Table Text Block]	The following table illustrates the impact of ASU 2013-13 adoption for PCD assets previously classified as PCI included in the table above (in thousands): January 1, 2020 As reported under ASU 2016-13 Pre-ASU 2016-13 Adoption Impact of ASU 2016-13 Adoption Construction & Land Development $ 291 $ — $ 291 1-4 Family Residential Properties 48 6 42 Commercial Real Estate 818 359 459 Commercial & Industrial 41 — 41 Allowance for credit losses for PCD loans $ 1,198 $ 365 $ 833

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Components of Basic and Diluted Net Income per Common Share	The components of basic and diluted net income per common share available to common stockholders for the three -month period ended March 31, 2020 and 2019 were as follows: Three months ended March 31, 2020 2019 Basic Net Income per Common Share Available to Common Stockholders: Net income $ 9,999,000 $ 13,316,000 Weighted average common shares outstanding 16,693,183 16,665,999 Basic earnings per common share $ 0.60 $ 0.80 Diluted Net Income per Common Share Available to Common Stockholders: Net income applicable to diluted earnings per share $ 9,999,000 $ 13,316,000 Weighted average common shares outstanding 16,693,183 16,665,999 Dilutive potential common shares: Restricted stock awarded 46,908 38,780 Dilutive potential common shares 46,908 38,780 Diluted weighted average common shares outstanding 16,740,091 16,704,779 Diluted earnings per common share $ 0.60 $ 0.80

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Available For Sale And Held For Maturity Securities [Table Text Block]	The amortized cost, gross unrealized gains and losses and estimated fair values for available-for-sale and held-to-maturity securities by major security type at March 31, 2020 and December 31, 2019 were as follows (in thousands): Amortized Cost Gross Unrealized Gains Gross Unrealized (Losses) Fair Value March 31, 2020 Available-for-sale: U.S. Treasury securities and obligations of U.S. government corporations & agencies $ 56,067 $ 716 $ (94 ) $ 56,689 Obligations of states and political subdivisions 167,146 260 (3,904 ) 163,502 Mortgage-backed securities: GSE residential 385,194 10,717 (400 ) 395,511 Other securities 2,028 112 (41 ) 2,099 Total available-for-sale $ 610,435 $ 11,805 $ (4,439 ) $ 617,801 Held-to-maturity: U.S. Treasury securities and obligations of U.S. government corporations & agencies $ 24,563 $ 243 $ — $ 24,806 December 31, 2019 Available-for-sale: U.S. Treasury securities and obligations of U.S. government corporations & agencies $ 106,428 $ 952 $ (60 ) $ 107,320 Obligations of states and political subdivisions 172,460 5,990 (17 ) 178,433 Mortgage-backed securities: GSE residential 391,307 5,331 (512 ) 396,126 Other securities 4,028 141 — 4,169 Total available-for-sale $ 674,223 $ 12,414 $ (589 ) $ 686,048 Held-to-maturity: U.S. Treasury securities and obligations of U.S. government corporations & agencies $ 69,542 $ 99 $ (69 ) $ 69,572
Realized Gains and Losses From Sale of Securities	Realized gains and losses resulting from sales of securities were as follows during the three months ended March 31, 2020 and 2019 (in thousands): Three months ended March 31, 2020 2019 Gross gains $ 531 $ 84 Gross losses — (30 )
Investments Classified by Contractual Maturity Date	The following table indicates the expected maturities of investment securities classified as available-for-sale presented at fair value, and held-to-maturity presented at amortized cost, at March 31, 2020 and the weighted average yield for each range of maturities (dollars in thousands): One year or less After 1 through 5 years After 5 through 10 years After ten years Total Available-for-sale: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 41,026 $ 15,663 $ — $ — $ 56,689 Obligations of state and political subdivisions 26,677 69,512 65,164 2,149 163,502 Mortgage-backed securities: GSE residential 73,878 310,186 11,447 — 395,511 Other securities — 1,759 — 340 2,099 Total available-for-sale investments $ 141,581 $ 397,120 $ 76,611 $ 2,489 $ 617,801 Weighted average yield 2.42 % 2.67 % 2.93 % 2.88 % 2.65 % Full tax-equivalent yield 2.63 % 2.87 % 3.93 % 3.79 % 2.96 % Held to Maturity: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 19,536 $ 5,027 $ — $ — $ 24,563 Weighted average yield 1.93 % 2.06 % — % — % 1.96 % Full tax-equivalent yield 1.93 % 2.06 % — % — % 1.96 % The weighted average yields are calculated on the basis of the amortized cost and effective yields weighted for the scheduled maturity of each security. Tax-equivalent yields have been calculated using a 21% tax rate. With the exception of obligations of the U.S. Treasury and other U.S. government agencies and corporations, there were no investment securities of any single issuer, the book value of which exceeded 10% of stockholders' equity at March 31, 2020 .
Fair value of investments with sustained gross unrealized losses	The following table presents the aging of gross unrealized losses and fair value by investment category as of March 31, 2020 and December 31, 2019 (in thousands): Less than 12 months 12 months or more Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses March 31, 2020 Available-for-sale: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 5,802 $ (94 ) $ — $ — $ 5,802 $ (94 ) Obligations of states and political subdivisions 119,614 (3,904 ) — — 119,614 (3,904 ) Mortgage-backed securities: GSE residential 51,736 (315 ) 3,679 (85 ) 55,415 (400 ) Other securities 709 (41 ) — — 709 (41 ) Total $ 177,861 $ (4,354 ) $ 3,679 $ (85 ) $ 181,540 $ (4,439 ) December 31, 2019 Available-for-sale: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 23,375 $ (60 ) $ — $ — $ 23,375 $ (60 ) Obligations of states and political subdivisions 3,469 (16 ) 347 (1 ) 3,816 (17 ) Mortgage-backed securities: GSE residential 67,080 (322 ) 20,888 (190 ) 87,968 (512 ) Total $ 93,924 $ (398 ) $ 21,235 $ (191 ) $ 115,159 $ (589 ) Held-to-maturity: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 14,996 $ (25 ) $ 24,565 $ (44 ) $ 39,561 $ (69 )

Loans and Allowance for Loan _2

Loans and Allowance for Loan Losses (Tables)	3 Months Ended
	Mar. 31, 2020
Receivables [Abstract]
Summary of Loans	A summary of loans at March 31, 2020 and December 31, 2019 follows (in thousands): March 31, December 31, Construction and land development $ 123,346 $ 94,462 Agricultural real estate 242,541 240,481 1-4 Family residential properties 325,146 336,553 Multifamily residential properties 140,536 155,132 Commercial real estate 1,003,021 997,175 Loans secured by real estate 1,834,590 1,823,803 Agricultural loans 139,014 136,023 Commercial and industrial loans 565,714 528,987 Consumer loans 82,330 83,544 All other loans 123,482 126,807 Total Gross loans 2,745,130 2,699,164 Less: Loans held for sale 1,251 1,820 2,743,879 2,697,344 Less: Net deferred loan fees, premiums and discounts 832 3,817 Allowance for credit losses 32,876 26,911 Net loans $ 2,710,171 $ 2,666,616
Allowance for Loan Losses and Recorded Investment in Loans	The following tables present the activity in the allowance for credit losses based on portfolio segment for the three -months ended March 31, 2020 (in thousands): Construction & Land Development Agricultural Real Estate 1-4 Family Residential Properties Commercial Real Estate Agricultural Loans Commercial & Industrial Consumer Loans Total Three months ended March 31, 2020 Beginning Balance (prior to adoption of ASU 2016-13) $ 1,146 $ 1,093 $ 1,386 $ 11,198 $ 1,386 $ 9,273 $ 1,429 $ 26,911 Impact of adopting ASU 2016-13 (113 ) 230 756 541 (363 ) 155 466 1,672 Provision for credit loss expense 587 12 (77 ) 1,961 41 2,815 142 5,481 Loans charged off — — 196 84 — 972 171 1,423 Recoveries collected — — 62 5 — 23 145 235 Ending balance $ 1,620 $ 1,335 $ 1,931 $ 13,621 $ 1,064 $ 11,294 $ 2,011 $ 32,876 Prior to the adoption of ASU 2016-13, the appropriate level of the allowance for loan losses for all non-impaired loans was based on a migration analysis of net losses over a rolling twelve quarter period by loan segment. A weighted average of the net losses was determined by assigning more weight to the most recent quarters in order to recognize current risk factors influencing the various segments of the loan portfolio more prominently than past periods. Due to weakened economic conditions during historical years, the Company established qualitative factor adjustments for each of the loan segments at levels above the historical net loss averages. Some of the economic factors included the potential for reduced cash flow for commercial operating loans from reduction in sales or increased operating costs, decreased occupancy rates for commercial buildings, reduced levels of home sales for commercial land developments, the uncertainty regarding grain prices and increased operating costs for farmers, and increased levels of unemployment and bankruptcy impacting consumer’s ability to pay. Each of these economic uncertainties was taken into consideration in developing the level of the allowance for loan losses. The following tables present the activity in the allowance for credit losses based on portfolio segment for the three -months ended March 31, 2019 and for the year ended December 31, 2019 (in thousands): Construction & Land Development Agricultural Real Estate 1-4 Family Residential Properties Commercial Real Estate Agricultural Loans Commercial & Industrial Consumer Loans Total Three months ended March 31, 2019 Beginning Balance (prior to adoption of ASU 2016-13) $ 561 $ 1,246 $ 1,504 $ 11,102 $ 951 $ 9,893 $ 932 $ 26,189 Provision for credit loss expense (9 ) 36 (41 ) (481 ) 188 1,013 241 947 Loans charged off — — 130 56 9 104 269 568 Recoveries collected — — 8 — — 28 100 136 Ending balance $ 552 $ 1,282 $ 1,341 $ 10,565 $ 1,130 $ 10,830 $ 1,004 $ 26,704 Construction & Land Development Agricultural Real Estate 1-4 Family Residential Properties Commercial Real Estate Agricultural Loans Commercial & Industrial Consumer Loans Total Twelve months ended December 31, 2019 Beginning Balance (prior to adoption of ASU 2016-13) $ 561 $ 1,246 $ 1,504 $ 11,102 $ 951 $ 9,893 $ 932 $ 26,189 Provision for credit loss expense 585 (153 ) 1,268 1,827 459 1,053 1,394 6,433 Loans charged off — — 1,477 1,743 24 1,828 1,254 6,326 Recoveries collected — — 91 12 — 155 357 615 Ending balance $ 1,146 $ 1,093 $ 1,386 $ 11,198 $ 1,386 $ 9,273 $ 1,429 $ 26,911
Financing Receivable, Individually Evaluated, Collateral Dependent [Table Text Block]	The following table presents the amortized cost basis of collateral-dependent loans by class of loans that were individually evaluated to determine expected credit losses, and the related allowance for credit losses, as of March 31, 2020 (in thousands): Collateral Allowance for Credit Losses Real Estate Business Assets Other Total Construction and land development $ 540 $ — $ — $ 540 $ 269 Agricultural real estate 150 — — 150 — 1-4 Family residential properties 3,875 — — 3,875 203 Multifamily residential properties 3,060 — — 3,060 17 Commercial real estate 6,494 — — 6,494 1,029 Loans secured by real estate 14,119 — — 14,119 1,518 Agricultural loans 239 40 — 279 — Commercial and industrial loans 327 3,788 19 4,134 312 Consumer loans — — 11 11 1 Total loans $ 14,685 $ 3,828 $ 30 $ 18,543 $ 1,831
Credit Risk Profile of the Company's Loan Portfolio	The following tables present the credit risk profile of the Company’s loan portfolio based on risk rating category and year of origination as of March 31, 2020 (in thousands): Risk Rating 2020 2019 2018 2017 2016 Prior Revolving Loans Total March 31, 2020 Construction & Land Development Loans Pass $ 47,279 $ 57,767 $ 4,912 $ 2,931 $ 604 $ 6,722 $ — $ 120,215 Special Mention — 309 1,796 — 393 15 — 2,513 Substandard — — — 540 — 58 — 598 Total $ 47,279 $ 58,076 $ 6,708 $ 3,471 $ 997 $ 6,795 $ — $ 123,326 Agricultural Real Estate Loans Pass $ 12,868 $ 44,321 $ 48,157 $ 20,904 $ 16,689 $ 87,879 $ — $ 230,818 Special Mention 275 3,008 2,512 — 1,088 3,444 — 10,327 Substandard — 150 859 197 31 509 — 1,746 Total $ 13,143 $ 47,479 $ 51,528 $ 21,101 $ 17,808 $ 91,832 $ — $ 242,891 1-4 Family Residential Property Loans Pass $ 9,125 $ 32,088 $ 33,208 $ 28,598 $ 29,270 $ 128,255 $ 44,251 $ 304,795 Watch 154 335 325 1,055 254 1,929 256 4,308 Substandard 56 374 2,075 2,091 2,053 8,138 1,238 16,025 Total $ 9,335 $ 32,797 $ 35,608 $ 31,744 $ 31,577 $ 138,322 $ 45,745 $ 325,128 Commercial Real Estate Loans Pass $ 49,604 $ 208,865 $ 178,757 $ 208,454 $ 179,026 $ 271,285 $ — $ 1,095,991 Special Mention 61 24 2,857 1,795 4,912 4,109 — 13,758 Substandard 1,257 127 1,406 4,287 4,573 21,203 — 32,853 Total $ 50,922 $ 209,016 $ 183,020 $ 214,536 $ 188,511 $ 296,597 $ — $ 1,142,602 Agricultural Loans Pass $ 32,007 $ 79,071 $ 11,469 $ 3,914 $ 1,732 $ 4,780 $ — $ 132,973 Special Mention 838 3,320 364 — 81 274 — 4,877 Substandard 232 205 213 513 — 123 — 1,286 Total $ 33,077 $ 82,596 $ 12,046 $ 4,427 $ 1,813 $ 5,177 $ — $ 139,136 Commercial & Industrial Loans Pass $ 83,001 $ 165,672 $ 113,733 $ 92,434 $ 52,819 $ 131,520 $ — $ 639,179 Special Mention 10 33,495 257 241 2,054 4,984 — 41,041 Substandard 329 2,339 463 1,475 430 3,855 — 8,891 Total $ 83,340 $ 201,506 $ 114,453 $ 94,150 $ 55,303 $ 140,359 $ — $ 689,111 Consumer Loans Pass $ 8,211 $ 31,924 $ 20,386 $ 12,441 $ 5,878 $ 2,236 $ — $ 81,076 Special Mention 27 68 50 10 57 22 — 234 Substandard — 47 184 185 179 199 — 794 Total $ 8,238 $ 32,039 $ 20,620 $ 12,636 $ 6,114 $ 2,457 $ — $ 82,104 Total Loans Pass $ 242,095 $ 619,708 $ 410,622 $ 369,676 $ — $ 286,018 $ 632,677 $ 44,251 $ 2,605,047 Special Mention 1,365 40,559 8,161 3,101 8,839 14,777 256 77,058 Substandard 1,874 3,242 5,200 9,288 7,266 34,085 1,238 62,193 Total $ 245,334 $ 663,509 $ 423,983 $ 382,065 $ 302,123 $ 681,539 $ 45,745 $ 2,744,298 The following tables present the credit risk profile of the Company’s loan portfolio based on risk rating category and year of origination as of December 31, 2019 (in thousands): December 31, 2019 Pass Special Mention Substandard Total Construction & land development $ 93,413 $ 413 $ 316 $ 94,142 Agricultural real estate 231,227 6,902 2,112 240,241 1-4 Family residential property loans 314,999 5,743 15,685 336,427 Commercial real estate 1,103,543 14,156 31,951 1,149,650 Loans secured by real estate 1,743,182 27,214 50,064 1,820,460 Agricultural loans 129,811 3,862 2,451 136,124 Commercial & industrial loans 603,047 40,395 12,138 655,580 Consumer loans 82,117 140 926 83,183 Total loans $ 2,558,157 $ 71,611 $ 65,579 $ 2,695,347
Loan Portfolio Aging Analysis	The following table presents the Company’s loan portfolio aging analysis at March 31, 2020 and December 31, 2019 (in thousands): 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Total Past Due Current Total Loans Receivable Total Loans > 90 Days & Accruing March 31, 2020 Construction and land development $ — $ — $ — $ — $ 123,326 $ 123,326 $ — Agricultural real estate 841 476 213 1,530 241,361 242,891 — 1-4 Family residential properties 5,617 1,526 2,148 9,291 315,837 325,128 — Multifamily residential properties — 875 — 875 138,859 139,734 — Commercial real estate 15,443 129 3,163 18,735 984,133 1,002,868 — Loans secured by real estate 21,901 3,006 5,524 30,431 1,803,516 1,833,947 — Agricultural loans 407 100 11 518 138,618 139,136 — Commercial and industrial loans 1,631 562 5,358 7,551 558,238 565,789 — Consumer loans 472 99 126 697 81,407 82,104 — All other loans — — — — 123,322 123,322 — Total loans $ 24,411 $ 3,767 $ 11,019 $ 39,197 $ 2,705,101 $ 2,744,298 $ — December 31, 2019 Construction and land development $ 235 $ — $ — $ 235 $ 93,907 $ 94,142 $ — Agricultural real estate 1,595 — 47 1,642 238,599 240,241 — 1-4 Family residential properties 3,834 2,288 4,713 10,835 325,592 336,427 — Multifamily residential properties 1,348 46 1,131 2,525 151,423 153,948 — Commercial real estate 602 495 2,241 3,338 992,364 995,702 — Loans secured by real estate 7,614 2,829 8,132 18,575 1,801,885 1,820,460 — Agricultural loans 300 — 307 607 135,517 136,124 — Commercial and industrial loans 767 855 5,989 7,611 521,362 528,973 — Consumer loans 454 196 150 800 82,383 83,183 — All other loans — — — — 126,607 126,607 — Total loans $ 9,135 $ 3,880 $ 14,578 $ 27,593 $ 2,667,754 $ 2,695,347 $ —
Impaired Loans	The following tables present impaired loans as of March 31, 2020 and December 31, 2019 (in thousands): March 31, 2020 December 31, 2019 Recorded Balance Unpaid Principal Balance Specific Allowance Recorded Balance Unpaid Principal Balance Specific Allowance Loans with a specific allowance: Construction and land development $ 540 $ 540 $ 269 $ 256 $ 256 $ — Agricultural real estate 150 150 — — — — 1-4 Family residential properties 5,449 5,668 203 5,154 5,351 182 Multifamily residential properties 3,133 3,133 17 4,254 4,254 19 Commercial real estate 6,494 6,998 1,029 5,904 6,408 587 Loans secured by real estate 15,766 16,489 1,518 15,568 16,269 788 Agricultural loans 279 852 — 85 669 8 Commercial and industrial loans 4,205 6,182 312 7,653 8,789 301 Consumer loans 139 139 1 134 134 1 Total loans $ 20,389 $ 23,662 $ 1,831 $ 23,440 $ 25,861 $ 1,098 Loans without a specific allowance: Construction and land development $ 39 $ 39 $ — $ 41 $ 41 $ — Agricultural real estate 419 419 — 479 479 — 1-4 Family residential properties 3,333 4,001 — 3,719 4,263 — Multifamily residential properties 44 44 — — — — Commercial real estate 1,463 1,540 — 1,721 1,724 — Loans secured by real estate 5,298 6,043 — 5,960 6,507 — Agricultural loans 583 10 — 724 140 — Commercial and industrial loans 914 3,076 — 916 3,065 — Consumer loans 357 784 — 391 713 — Total loans $ 7,152 $ 9,913 $ — $ 7,991 $ 10,425 $ — Total loans: Construction and land development $ 579 $ 579 $ 269 $ 297 $ 297 $ — Agricultural real estate 569 569 — 479 479 — 1-4 Family residential properties 8,782 9,669 203 8,873 9,614 182 Multifamily residential properties 3,177 3,177 17 4,254 4,254 19 Commercial real estate 7,957 8,538 1,029 7,625 8,132 587 Loans secured by real estate 21,064 22,532 1,518 21,528 22,776 788 Agricultural loans 862 862 — 809 809 8 Commercial and industrial loans 5,119 9,258 312 8,569 11,854 301 Consumer loans 496 923 1 525 847 1 Total loans $ 27,541 $ 33,575 $ 1,831 $ 31,431 $ 36,286 $ 1,098
Impaired loans by portfolio class	The following tables present average recorded investment and interest income recognized on impaired loans for the three -month periods ended March 31, 2020 and 2019 (in thousands): For the three months ended March 31, 2020 March 31, 2019 Average Investment in Impaired Loans Interest Income Recognized Average Investment in Impaired Loans Interest Income Recognized Construction and land development $ 600 $ 8 $ 813 $ — Agricultural real estate 1,202 — 1,239 — 1-4 Family residential properties 8,997 18 8,690 23 Multifamily residential properties 3,323 1 1,718 — Commercial real estate 8,266 42 10,359 6 Loans secured by real estate 22,388 69 22,819 29 Agricultural loans 960 — 664 — Commercial and industrial loans 7,402 2 6,698 1 Consumer loans 544 — 744 — All other loans — — — — Total loans $ 31,294 $ 71 $ 30,925 $ 30
Nonaccrual Loans	The following table presents the amortized cost basis of loans on nonaccrual status and of nonaccrual loans individually evaluated for which no allowance was recorded as of March 31, 2020 and December 31, 2019 (in thousands). There were no loans past due over eighty-nine days that were still accruing. March 31, December 31, Nonaccrual with no Allowance for Credit Loss Nonaccrual Nonaccrual Construction and land development $ — $ 39 $ 41 Agricultural real estate 150 569 479 1-4 Family residential properties 3,478 7,416 7,379 Multifamily residential properties 2,260 3,104 3,137 Commercial real estate 1,273 4,351 4,351 Loans secured by real estate 7,161 15,479 15,387 Agricultural loans 812 822 769 Commercial and industrial loans 3,824 4,994 8,441 Consumer loans 125 492 521 Total loans $ 11,922 $ 21,787 $ 25,118
Schedule of Acquired Receivables With Credit Deterioration [Table Text Block]	The amount of these loans at December 31, 2019 was as follows (in thousands): December 31, Construction and land development $ 256 Agricultural real estate — 1-4 Family residential properties 371 Multifamily residential properties 2,077 Commercial real estate 2,247 Loans secured by real estate 4,951 Agricultural loans — Commercial and industrial loans — Consumer loans — Carrying amount 4,951 Allowance for loan losses (365 ) Carrying amount, net of allowance $ 4,586
Recorded Balance of Troubled Debt Restructurings	The following table presents the Company’s recorded balance of troubled debt restructurings at March 31, 2020 and December 31, 2019 (in thousands). Troubled debt restructurings: March 31, 2020 December 31, 2019 1-4 Family residential properties $ 1,882 $ 1,905 Commercial real estate 2,008 1,746 Loans secured by real estate 3,890 3,651 Agricultural loans 553 669 Commercial and industrial loans 1,017 1,349 Consumer loans 139 134 Total $ 5,599 $ 5,803 Performing troubled debt restructurings: 1-4 Family residential properties $ 1,366 $ 1,382 Commercial real estate 1,140 1,146 Loans secured by real estate 2,506 2,528 Agricultural Loans 41 40 Commercial and industrial loans 125 128 Consumer loans 4 5 Total $ 2,676 $ 2,701
Financing Receivables,Troubled Debt Restructurings during period [Table Text Block]	following table presents loans modified as TDRs during the three months ended March 31, 2020 and 2019 , as a result of various modified loan factors (in thousands). The change in the recorded investment from pre-modification to post-modification was not material. March 31, 2020 March 31, 2019 Number of Modifications Recorded Investment Type of Modifications Number of Modifications Recorded Investment Type of Modifications 1-4 Family residential properties — $ — 1 $ 46 (b)(c) Commercial real estate 1 305 (b) 1 483 (b)(c) Loans secured by real estate 1 305 2 529 Commercial and industrial loans 1 7 (b) 2 72 (b)(c) Consumer Loans 1 11 (b) 1 14 (b)(c) Total 3 $ 323 5 $ 615

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Schedule of Intangible Assets and Goodwill [Table Text Block]	The following table presents gross carrying value and accumulated amortization by major intangible asset class as of March 31, 2020 and December 31, 2019 (in thousands): March 31, 2020 December 31, 2019 Gross Carrying Value Accumulated Amortization Gross Carrying Value Accumulated Amortization Goodwill not subject to amortization (effective 1/1/02) $ 108,752 $ 3,760 $ 108,752 $ 3,760 Intangibles from branch acquisition 3,015 3,015 3,015 3,015 Core deposit intangibles 32,355 18,589 32,355 17,746 Other intangibles 16,389 4,244 16,129 3,917 $ 160,511 $ 29,608 $ 160,251 $ 28,438
Intangible Assets, Mortgage Servicing Rights [Table Text Block]	The following table summarizes the activity pertaining to mortgage servicing rights included in intangible assets as of March 31, 2020 , March 31, 2019 and December 31, 2019 (in thousands): March 31, 2020 March 31, 2019 December 31, 2019 Beginning Balance $ 1,444 $ 2,101 $ 2,101 Mortgage servicing rights acquired during period — — — Mortgage servicing rights capitalized — — — Valuation reserve (18 ) — (380 ) Mortgage servicing rights amortized (126 ) (58 ) (411 ) I/O Strip (4 ) — 134 Ending Balance $ 1,296 $ 2,043 $ 1,444
Schedule of Intangible Assets Amortization Expense [Table Text Block]	Total amortization expense for the three months ended March 31, 2020 and 2019 was as follows (in thousands): Three months ended March 31, 2020 2019 Core deposit intangibles $ 843 $ 980 Customer list intangibles 326 318 Mortgage servicing rights 126 58 $ 1,295 $ 1,356
Schedule of Expected Amortization Expense [Table Text Block]	Aggregate amortization expense for the current year and estimated amortization expense for each of the five succeeding years is shown in the table below (in thousands): Aggregate amortization expense: For period 01/01/20-3/31/20 $ 1,295 Estimated amortization expense: For period 4/01/20-12/31/20 3,674 For year ended 12/31/20 4,285 For year ended 12/31/21 3,919 For year ended 12/31/22 3,498 For year ended 12/31/23 2,946 For year ended 12/31/24 2,633

Repurchase Agreements and Oth_2

Repurchase Agreements and Other Borrowings Repurchase Agreements and Other Borrowings (Tables)	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Schedule of Securities Financing Transactions [Table Text Block]	Collateral pledged by class for repurchase agreements are as follows (in thousands): March 31, 2020 December 31, 2019 US Treasury securities and obligations of U.S. government corporations & agencies $ 36,437 $ 77,333 Obligations of states and political subdivisions — 2,375 Mortgage-backed securities: GSE: residential 194,144 128,401 Other Securities 1,068 — Total $ 231,649 $ 208,109
Federal Home Loan Bank, Advances [Table Text Block]	FHLB borrowings were $120 million and $114 million at March 31, 2020 and December 31, 2019 , respectively. At March 31, 2020 the advances were as follows: Advance Term (in years) Interest Rate Maturity Date $ 5,000,000 4.0 1.79% April 13, 2020 10,000,000 1.5 2.95% May 29, 2020 5,000,000 2.0 2.75% June 26, 2020 5,000,000 3.0 1.75% July 31, 2020 5,000,000 6.0 2.30% August 24, 2020 5,000,000 3.5 1.83% February 1, 2021 5,000,000 5.0 1.85% April 12, 2021 5,000,000 7.0 2.55% October 1, 2021 5,000,000 5.0 2.71% March 21, 2022 5,000,000 8.0 2.40% January 9, 2023 5,000,000 3.5 1.51% July 31, 2023 5,000,000 3.5 0.77% September 11, 2023 10,000,000 5.0 1.45% December 31, 2024 5,000,000 5.0 0.91% March 10, 2025 5,000,000 10.0 1.14% October 3, 2029 5,000,000 10.0 1.15% October 3, 2029 5,000,000 10.0 1.12% October 3, 2029 10,000,000 10.0 1.39% December 31, 2029 15,000,000 10.0 1.41% December 31, 2029

Fair Value of Assets and Liab_2

Fair Value of Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Assets Measured at Fair Value on Recurring Basis	The following table presents the Company’s assets and liabilities that are measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fall as of March 31, 2020 and December 31, 2019 (in thousands): Fair Value Measurements Using Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2020 Available-for-sale securities: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 56,689 $ — $ 56,689 $ — Obligations of states and political subdivisions 163,502 — 162,712 790 Mortgage-backed securities 395,511 — 395,511 — Other securities 2,099 146 1,953 — Total available-for-sale securities 617,801 146 616,865 790 Derivative assets: Interest rate swaps 1,002 — 1,002 — $ 618,803 $ 146 $ 617,867 $ 790 Derivative liabilities: Interest rate swaps $ 2,710 $ — $ 2,710 $ — December 31, 2019 Available-for-sale securities: U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 107,320 $ — $ 107,320 $ — Obligations of states and political subdivisions 178,433 — 177,460 973 Mortgage-backed securities 396,126 — 396,126 — Other securities 4,169 219 3,950 — Total available-for-sale securities $ 686,048 $ 219 $ 684,856 $ 973 Derivative liabilities: Interest rate swaps $ 325 $ — $ 325 $ —
Fair Value of Assets Measured on a Recurring Basis Using Significant Unobservable Inputs	Obligation of State and Political Subdivisions Three months ended March 31, 2020 March 31, 2019 Beginning balance $ 973 $ 967 Transfers into Level 3 — — Transfers out of Level 3 — — Total gains or losses: Included in net income 1 1 Included in other comprehensive income (loss) — — Purchases, issuances, sales and settlements: Purchases — — Issuances — — Sales (184 ) — Settlements — — Ending balance $ 790 $ 968 Total gains or losses for the period included in net income attributable to the change in unrealized gains or losses related to assets and liabilities still held at the reporting date $ — $ — The change in fair value of assets measured on a recurring basis using significant unobservable inputs (Level 3) for the three months ended March 31, 2020 and 2019 is summarized as follows (in thousands):
Assets Measured at Fair Value on a Nonrecurring Basis	The following table presents the fair value measurement of assets measured at fair value on a nonrecurring basis and the level within the fair value hierarchy in which the fair value measurements fall at March 31, 2020 and December 31, 2019 (in thousands): Fair Value Measurements Using Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2020 Impaired loans (collateral dependent) $ 9,514 $ — $ — $ 9,514 Foreclosed assets held for sale 160 — — 160 Mortgage servicing rights 1,296 — — 1,296 December 31, 2019 Impaired loans (collateral dependent) $ 12,727 $ — $ — $ 12,727 Foreclosed assets held for sale 935 — — 935 Mortgage servicing rights 1,444 — — 1,444
Significant Assumptions Used in Valuation of Level 3 Financial Instruments	The following table presents quantitative information about unobservable inputs used in recurring and nonrecurring Level 3 fair value measurements other than goodwill at March 31, 2020 and December 31, 2019 (in thousands). March 31, 2020 Fair Value Valuation Technique Unobservable Inputs Range (Weighted Average) Impaired loans (collateral dependent) $ 9,514 Third party valuations Discount to reflect realizable value 0 % - 40% ( 20% ) Foreclosed assets held for sale 160 Third party valuations Discount to reflect realizable value less estimated selling costs 0 % - 40% ( 35% ) Mortgage servicing rights 1,296 Third party valuations Discount to reflect realizable value 9.0 % - 11.0% ( 9.1% ) December 31, 2019 Fair Value Valuation Technique Unobservable Inputs Range (Weighted Average) Impaired loans (collateral dependent) $ 12,727 Third party valuations Discount to reflect realizable value 0 % - 40% ( 20% ) Foreclosed assets held for sale 935 Third party valuations Discount to reflect realizable value less estimated selling costs 0 % - 40% ( 35% ) Mortgage servicing rights 1,444 Third party valuations Discount to reflect realizable value 9.5 % - 12.5% ( 9.7% )
Carrying Amounts and Estimated Fair Values of Financial Instruments Not Carried at Fair Value	The following tables present estimated fair values of the Company’s financial instruments at March 31, 2020 and December 31, 2019 in accordance with ASC 825 (in thousands): Carrying Amount Fair Value Level 1 Level 2 Level 3 March 31, 2020 Financial Assets Cash and due from banks $ 181,100 $ 181,100 $ 181,100 $ — $ — Federal funds sold 927 927 927 — — Certificates of deposit investments 4,380 4,380 — 4,380 — Available-for-sale securities 617,801 617,801 146 616,865 790 Held-to-maturity securities 24,563 24,806 — 24,806 — Loans held for sale 1,251 1,251 — 1,251 — Loans net of allowance for loan losses 2,710,171 2,627,881 — — 2,627,881 Interest receivable 15,422 15,422 — 15,422 — Federal Reserve Bank stock 9,401 9,401 — 9,401 — Federal Home Loan Bank stock 5,450 5,450 — 5,450 — Financial Liabilities Deposits $ 2,908,627 $ 2,920,736 $ — $ 2,353,150 $ 567,586 Securities sold under agreements to repurchase 231,649 231,699 — 231,699 — Interest payable 2,029 2,029 — 2,029 — Federal Home Loan Bank borrowings 119,921 124,463 — 124,463 — Other borrowings 5,000 5,000 — 5,000 — Junior subordinated debentures 18,900 14,632 — 14,632 — December 31, 2019 Financial Assets Cash and due from banks $ 84,154 $ 84,154 $ 84,154 $ — $ — Federal funds sold 926 926 926 — — Certificates of deposit investments 4,625 4,625 — 4,625 — Available-for-sale securities 686,048 686,048 219 684,856 973 Held-to-maturity securities 69,542 69,572 — 69,572 — Loans held for sale 1,820 1,820 — 1,820 — Loans net of allowance for loan losses 2,666,616 2,622,053 — — 2,622,053 Interest receivable 15,577 15,577 — 15,577 — Federal Reserve Bank stock 9,401 9,401 — 9,401 — Federal Home Loan Bank stock 4,105 4,105 — 4,105 — Financial Liabilities Deposits $ 2,917,366 $ 2,924,144 $ — $ 2,332,866 $ 591,278 Securities sold under agreements to repurchase 208,109 208,016 — 208,016 — Interest payable 2,261 2,261 — 2,261 — Federal Home Loan Bank borrowings 113,895 114,510 — 114,510 — Other borrowings 5,000 5,000 5,000 — — Junior subordinated debentures 18,858 15,596 — 15,596 —

Leases Leases (Tables)

Leases Leases (Tables)	3 Months Ended
	Mar. 31, 2020
Leases [Abstract]
Supplemental Balance Sheet Disclosures [Text Block]	The following table contains supplemental balance sheet information related to leases (dollars in thousands): March 31, 2020 December 31, 2019 Operating lease right-of-use assets $ 16,542 $ 17,006 Operating lease liabilities 16,568 17,007 Weighted-average remaining lease term 7.1 years 7.3 years Weighted-average discount rate 3.08 % 3.07 %
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Maturities of lease liabilities were as follows (in thousands): Year ending December 31, 2020 $ 2,476 2021 2,391 2022 2,099 2023 1,849 2024 1,407 Thereafter 9,085 Total lease payments 19,307 Less imputed interest (2,739 ) Total lease liability $ 16,568
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]	The components of lease expense for the three months ended March 31, 2020 and 2019 were as follows (in thousands): Thee months ended March 31, 2020 2019 Operating lease cost $ 642 $ 671 Short-term lease cost 46 23 Variable lease cost 169 224 Total lease cost 857 918 Income from subleases (193 ) (248 ) Net lease cost $ 664 $ 670
Operating Lease Cash Flow [Table Text Block]	Cash paid for amounts included in the measurement of lease liabilities was (in thousands): March 31, 2020 March 31, 2019 Operating cash flows from operating leases $ 677 664

Derivatives (Tables)

Derivatives (Tables)	3 Months Ended
	Mar. 31, 2020
Derivative [Line Items]
Derivative Instruments, Gain (Loss) [Table Text Block]	The effects of the fair value hedges on the Company's income statement during the three months ended March 31, 2020 were as follows (in thousands): Three months ended March 31, Derivative Location of Gain (Loss) on Derivative 2020 2019 Interest rate swap agreements Interest income on loans $ (1,384 ) — Three months ended March 31, Derivative Location of Gain (Loss) on Hedged Item 2020 2019 Interest rate swap agreements Interest income on loans $ 1,384 —
Hedged Instrument Disclosure [Table Text Block]	As of March 31, 2020 , the following amounts were recorded on the consolidated balance sheet related to cumulative basis adjustment for fair value hedges (in thousands): Line Item in the Balance Sheet in Which the Hedge Item is Included Carrying Amount of the Hedged Asset Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset Loans $ 12,985 $ 1,709 Derivatives Not Designated as Hedging Instruments The following amounts represent the notional amounts and gross fair value of derivative contracts not designated as hedging instruments outstanding during the three months ended March 31, 2020 (in thousands): March 31, 2020 Balance Sheet Location Weighted Average Remaining Maturity (Years) Notional Amount Estimated Value Interest rate swap agreements Other assets 9.2 years $ 31,490 $ 1,002 Interest rate swap agreements Other liabilities 9.2 years $ 31,490 $ (1,002 )
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Instruments and Hedging Activities Disclosure [Text Block]	Derivatives The Company utilizes an interest rate swap, designated as a fair value hedge, to mitigate the risk of changing interest rates on the fair value of a fixed rate commercial real estate loan. For derivative instruments that are designed and qualify as a fair value hedge, the gain or loss on the derivative instrument, as well as the offsetting loss or gain in the hedged asset attributable to the hedged risk, is recognized in current earnings. Derivatives Designated as Hedging Instruments The following table provides the outstanding notional balances and fair values of outstanding derivatives designated as hedging instruments as of March 31, 2020 and December 31, 2019 (in thousands): Balance Sheet Location Weighted Average Remaining Maturity (Years) Notional Amount Estimated Value March 31, 2020 Fair Value Hedges: Interest rate swap agreements Other liabilities 9.1 years $ 14,694 $ (1,709 ) December 31, 2019 Fair Value Hedges: Interest rate swap agreements Other liabilities 9.3 years $ 14,748 $ (325 ) The effects of the fair value hedges on the Company's income statement during the three months ended March 31, 2020 were as follows (in thousands): Three months ended March 31, Derivative Location of Gain (Loss) on Derivative 2020 2019 Interest rate swap agreements Interest income on loans $ (1,384 ) — Three months ended March 31, Derivative Location of Gain (Loss) on Hedged Item 2020 2019 Interest rate swap agreements Interest income on loans $ 1,384 — As of March 31, 2020 , the following amounts were recorded on the consolidated balance sheet related to cumulative basis adjustment for fair value hedges (in thousands): Line Item in the Balance Sheet in Which the Hedge Item is Included Carrying Amount of the Hedged Asset Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset Loans $ 12,985 $ 1,709 Derivatives Not Designated as Hedging Instruments The following amounts represent the notional amounts and gross fair value of derivative contracts not designated as hedging instruments outstanding during the three months ended March 31, 2020 (in thousands): March 31, 2020 Balance Sheet Location Weighted Average Remaining Maturity (Years) Notional Amount Estimated Value Interest rate swap agreements Other assets 9.2 years $ 31,490 $ 1,002 Interest rate swap agreements Other liabilities 9.2 years $ 31,490 $ (1,002 )
Fair Value Hedging [Member]
Derivative [Line Items]
Schedule of Derivative Instruments [Table Text Block]	March 31, 2020 and December 31, 2019 (in thousands): Balance Sheet Location Weighted Average Remaining Maturity (Years) Notional Amount Estimated Value March 31, 2020 Fair Value Hedges: Interest rate swap agreements Other liabilities 9.1 years $ 14,694 $ (1,709 ) December 31, 2019 Fair Value Hedges: Interest rate swap agreements Other liabilities 9.3 years $ 14,748 $ (325 )

Basis of Accounting and Conso_3

Basis of Accounting and Consolidation Basis of Accounting and Consolidation (Stock Plans) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares to be issued in stock incentive plan (in shares)	149,983
Captive Maximum Gross Premiums	$ 2,300,000
Employee Stock Purchase Plan [Abstract]
Employee Discount for Employee Stock Purchase Plan	5.00%
Employee Stock Purchase Plan, Number Of Shares Authorized	600,000
Stock Issued During Period, Shares, Employee Stock Purchase Plans	3,804	782
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock awarded in SI plan (in shares)	25,200		25,950
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock awarded in SI plan (in shares)	16,950		16,200

Basis of Accounting and Conso_4

Basis of Accounting and Consolidation (AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Total accumulated other comprehensive income, net of tax	$ 5,209	$ 8,360
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net unrealized gains on securities available-for-sale	7,366	11,825
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	30	50
Unrealized gain (loss) on available-for-sale securities, tax benefit	(2,127)	(3,415)
Total unrealized gain (loss) on available for sale securities, net of tax	$ 5,209	$ 8,360

Basis of Accounting and Conso_5

Basis of Accounting and Consolidation Basis of Accounting and Consolidation (AOCI-Income Statement) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Debt and Equity Securities, Gain (Loss)	$ 531	$ 54
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	(154)	(16)
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	$ 377	$ 38

Basis of Accounting and Conso_6

Basis of Accounting and Consolidation Basis of Accounting and Consolidation (Acquisitions) (Details) $ in Millions	Apr. 21, 2020USD ($)
Subsequent Event [Member]
Subsequent Event [Line Items]
LoansAcquired	$ 183

Basis of Accounting and Conso_7

Basis of Accounting and Consolidation Basis of Accounting and Consolidation (Stock Repurchase Plan) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020USD ($)shares
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount	$ 6.2
Stock Repurchased During Period, Value	$ 1.1
Stock Repurchased During Period, Shares | shares	35,427
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 4.9

Basis of Accounting and Conso_8

Basis of Accounting and Consolidation Basis of Accounting and Consolidation (Accounting Standards Updates) (Details) - USD ($)	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets	$ 16,542,000		$ 17,006,000
Operating lease liabilities	$ 16,568,000		17,007,000
Off-Balance Sheet, Credit Loss, Liability		$ 69,000	$ 0
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets				$ 14,100,000
Operating lease liabilities				$ 14,100,000
Accounting Standards Update 2016-13 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets		717,000
Off-Balance Sheet, Credit Loss, Liability		$ 69,000

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Basic Net Income per Common Share Available to Common Stockholders [Abstract]
Net income	$ 9,999,000	$ 13,316,000
Weighted average common shares outstanding	16,693,183	16,665,999
Basic earnings per common share	$ 0.60	$ 0.80
Diluted Net Income per Common Share Available to Common Stockholders [Abstract]
Net income applicable to diluted earnings per share	$ 9,999,000	$ 13,316,000
Weighted average common shares outstanding	16,693,183	16,665,999
Dilutive potential common shares [Abstract]
Restricted stock awarded	46,908	38,780
Dilutive potential common shares	46,908	38,780
Diluted weighted average common shares outstanding	16,740,091	16,704,779
Diluted net income per common share available to common stockholders	$ 0.60	$ 0.80

Investment Securities (Details)

Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Available-for-sale: [Abstract]
Amortized Cost	$ 610,435		$ 674,223
Gross Unrealized Gains	11,805		12,414
Gross Unrealized (Losses)	(4,439)		(589)
Fair Value	617,801		686,048
Debt and Equity Securities, Gain (Loss)	531	$ 54
Held-to-maturity: [Abstract]
Debt Securities, Held-to-maturity	24,563		69,542
Debt Securities, Held-to-maturity, Fair Value	24,806		69,572
Realized Investment Gains (Losses) [Abstract]
Gross gains	531	84
Gross losses	0	$ (30)
U.S. Treasury securities and obligations of U.S. government corporations & agencies
Available-for-sale: [Abstract]
Amortized Cost	56,067		106,428
Gross Unrealized Gains	716		952
Gross Unrealized (Losses)	(94)		(60)
Fair Value	56,689		107,320
Held-to-maturity: [Abstract]
Debt Securities, Held-to-maturity	24,563		69,542
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	243		99
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	0		(69)
Debt Securities, Held-to-maturity, Fair Value	24,806		69,572
Obligations of states and political subdivisions
Available-for-sale: [Abstract]
Amortized Cost	167,146		172,460
Gross Unrealized Gains	260		5,990
Gross Unrealized (Losses)	(3,904)		(17)
Fair Value	163,502		178,433
Mortgage-backed securities: GSE residential
Available-for-sale: [Abstract]
Amortized Cost	385,194		391,307
Gross Unrealized Gains	10,717		5,331
Gross Unrealized (Losses)	(400)		(512)
Fair Value	395,511		396,126
Other securities
Available-for-sale: [Abstract]
Amortized Cost	2,028		4,028
Gross Unrealized Gains	112		141
Gross Unrealized (Losses)	(41)		0
Fair Value	$ 2,099		$ 4,169

Investment Securities, Part II

Investment Securities, Part II (Details)	3 Months Ended
	Mar. 31, 2020USD ($)securities	Mar. 31, 2019USD ($)	Dec. 31, 2019USD ($)securities
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
One year or less	$ 141,581,000
After 1 through 5 years	397,120,000
After 5 through 10 years	76,611,000
After ten years	2,489,000
Fair Value	$ 617,801,000		$ 686,048,000
Available-for-sale, Weighted Average Yield, Maturities Year One (in hundredths)	2.42%
Available-for-sale , Weighted Average Yield, Maturities After 1 through 5 Years (in hundredths)	2.67%
Available-for-sale, Weighted Average Yield, Maturities After 5 through 10 Years (in hundredths)	2.93%
Available-for-sale , Weighted Average Yield, Maturities After 10 Years (in hundredths)	2.88%
Available-for-sale , Weighted Average Yield, Maturities (in hundredths)	2.65%
Available-for-sale, Full Tax-equivalent Yield, Maturities Year One (in hundredths)	2.63%
Available-for-sale, Full Tax-equivalent Yield, Maturities After 1 through 5 Years (in hundredths)	2.87%
Available-for-sale, Full Tax-equivalent Yield, Maturities After 5 through 10 years (in hundredths)	3.93%
Available-for-sale, Full Tax-equivalent Yield, Maturities After Ten Years (in hundredths)	3.79%
Available-for-sale, Full Tax-equivalent Yield, Maturities (in hundredths)	2.96%
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Debt Securities, Held-to-maturity	$ 24,563,000		69,542,000
Held To Maturity Weighted Average Yield Maturities Year One	1.93%
Held To Maturity Weighted Average Yield Maturities After 1 Through 5 Years	2.06%
Held To Maturity Weighted Average Yield Maturities After 5 Through 10 Years	0.00%
Held To Maturity Weighted Average Yield Maturities After 10 Years	0.00%
Held To Maturity Weighted Average Yield Maturities	1.96%
Held To Maturity Tax Equivalent Yield Maturities Year One	1.93%
Held To Maturity Tax Equivalent Yield Maturities After 1 Through 5 Years	2.06%
Held To Maturity Tax Equivalent Yield Maturities After 5 Through 10 Years	0.00%
Held To Maturity Tax Equivalent Yield Maturities After 10 Years	0.00%
Held To Maturity Tax Equivalent Yield Maturities	1.96%
Tax rate used to calculate tax-equivalent yields (in hundredths)	21.00%
Percentage investment book value exceeds total stockholders' equity (in hundredths)	10.00%
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
Less than 12 months, Fair Value	$ 177,861,000		93,924,000
Less than 12 months, Unrealized Losses	(4,354,000)		(398,000)
12 months or longer, Fair Value	3,679,000		21,235,000
12 months or longer, Unrealized losses	(85,000)		(191,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	181,540,000		115,159,000
Total Unrealized Losses	4,439,000		589,000
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	4,439,000		589,000
Credit losses on trust preferred securities held [Abstract]
Debt and Equity Securities, Gain (Loss)	531,000	$ 54,000
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Restricted	582,000,000		688,000,000
U.S. Treasury securities and obligations of U.S. government corporations & agencies
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
One year or less	41,026,000
After 1 through 5 years	15,663,000
After 5 through 10 years	0
After ten years	0
Fair Value	56,689,000		107,320,000
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost	19,536,000
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost	5,027,000
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	0
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Amortized Cost	0
Debt Securities, Held-to-maturity	24,563,000		69,542,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
Less than 12 months, Fair Value	5,802,000		23,375,000
Less than 12 months, Unrealized Losses	(94,000)		(60,000)
12 months or longer, Fair Value	0		0
12 months or longer, Unrealized losses	0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	5,802,000		23,375,000
Total Unrealized Losses	94,000		60,000
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	94,000		60,000
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position [Abstract]
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value			14,996,000
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss			(25,000)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value			24,565,000
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss			(44,000)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value			39,561,000
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss			$ (69,000)
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | securities			4
Obligations of states and political subdivisions
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
One year or less	26,677,000
After 1 through 5 years	69,512,000
After 5 through 10 years	65,164,000
After ten years	2,149,000
Fair Value	163,502,000		$ 178,433,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
Less than 12 months, Fair Value	119,614,000		3,469,000
Less than 12 months, Unrealized Losses	(3,904,000)		(16,000)
12 months or longer, Fair Value	0		347,000
12 months or longer, Unrealized losses	0		(1,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	119,614,000		3,816,000
Total Unrealized Losses	3,904,000		$ 17,000
Number of securities in Unrealized Loss Positions | securities			1
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	3,904,000		$ 17,000
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position [Abstract]
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value			347,000
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss			(1,000)
Mortgage-backed securities: GSE residential
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
One year or less	73,878,000
After 1 through 5 years	310,186,000
After 5 through 10 years	11,447,000
After ten years	0
Fair Value	395,511,000		396,126,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
Less than 12 months, Fair Value	51,736,000		67,080,000
Less than 12 months, Unrealized Losses	(315,000)		(322,000)
12 months or longer, Fair Value	3,679,000		20,888,000
12 months or longer, Unrealized losses	(85,000)		(190,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	55,415,000		87,968,000
Total Unrealized Losses	$ 400,000		$ 512,000
Number of securities in Unrealized Loss Positions | securities	5		14
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	$ 400,000		$ 512,000
Other securities
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
One year or less	0
After 1 through 5 years	1,759,000
After 5 through 10 years	0
After ten years	340,000
Fair Value	2,099,000		4,169,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
Less than 12 months, Fair Value	709,000
Less than 12 months, Unrealized Losses	(41,000)
12 months or longer, Fair Value	0
12 months or longer, Unrealized losses	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	709,000
Total Unrealized Losses	41,000
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	$ 41,000		$ 0

Loans and Allowance for Loan _3

Loans and Allowance for Loan Losses (Details)	Jan. 01, 2020USD ($)	Mar. 31, 2020USD ($)alternative	Mar. 31, 2019USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performing Recorded Investment		$ 2,676,000	$ 2,100,000	$ 2,701,000
Gross loans		2,745,130,000		2,699,164,000
Loans Receivable Held-for-sale, Amount		1,251,000		1,820,000
loans and leases receivable gross excluding loans held for sale		2,743,879,000		2,697,344,000
Less [Abstract]
Net deferred loan fees, premiums and discounts		832,000		3,817,000
Net loans		2,710,171,000		2,666,616,000
Loans And Leases Receivable, Interest Receivable		12,500,000		12,300,000
Impaired Loans [Abstract]
Minimum value of loans individually measured for impairment		$ 250,000
Number of alternatives for measuring impaired loans receivable | alternative		3
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	$ 28,583,000	$ 32,876,000	26,704,000	26,911,000	$ 26,189,000
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)		5,481,000	947,000	6,433,000
Provision for Loan and Lease Losses		5,481,000	947,000
Losses charged off		(1,423,000)	(568,000)	(6,326,000)
Recoveries		235,000	136,000	615,000
Ending Balance [Abstract]
Loans and Leases Receivable, Including Held for Sale, Net of Deferred Income		2,744,298,000		2,695,347,000
Loans By Collateral Type [Abstract]
Specific Allowance		1,831,000		1,098,000
Financing Receivable, Individually Evaluated for Impairment		18,543,000
Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans		123,346,000		94,462,000
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	1,033,000	1,620,000	552,000	1,146,000	561,000
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)		587,000	(9,000)	585,000
Losses charged off		0	0	0
Recoveries		0	0	0
Ending Balance [Abstract]
Loans and Leases Receivable, Including Held for Sale, Net of Deferred Income		123,326,000		94,142,000
Loans By Collateral Type [Abstract]
Specific Allowance		269,000		0
Financing Receivable, Individually Evaluated for Impairment		540,000
Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans		242,541,000		240,481,000
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	1,323,000	1,335,000	1,282,000	1,093,000	1,246,000
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)		12,000	36,000	(153,000)
Losses charged off		0	0	0
Recoveries		0	0	0
Ending Balance [Abstract]
Loans and Leases Receivable, Including Held for Sale, Net of Deferred Income		242,891,000		240,241,000
Loans By Collateral Type [Abstract]
Specific Allowance		0		0
Financing Receivable, Individually Evaluated for Impairment		150,000
1-4 Family residential properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performing Recorded Investment		1,366,000		1,382,000
Gross loans		325,146,000		336,553,000
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	2,142,000	1,931,000	1,341,000	1,386,000	1,504,000
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)		(77,000)	(41,000)	1,268,000
Losses charged off		(196,000)	(130,000)	(1,477,000)
Recoveries		62,000	8,000	91,000
Ending Balance [Abstract]
Loans and Leases Receivable, Including Held for Sale, Net of Deferred Income		325,128,000		336,427,000
Loans By Collateral Type [Abstract]
Specific Allowance		203,000		182,000
Financing Receivable, Individually Evaluated for Impairment		$ 3,875,000
Period When Loans are Charged-down		180 days
Commercial Real Estate Including Multifamily
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss		$ 13,621,000	10,565,000	11,198,000	11,102,000
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)		1,961,000	(481,000)	1,827,000
Losses charged off		(84,000)	(56,000)	(1,743,000)
Recoveries		5,000	0	12,000
Ending Balance [Abstract]
Loans and Leases Receivable, Including Held for Sale, Net of Deferred Income		1,142,602,000		1,149,650,000
Multifamily residential properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans		140,536,000		155,132,000
Ending Balance [Abstract]
Loans and Leases Receivable, Including Held for Sale, Net of Deferred Income		139,734,000		153,948,000
Loans By Collateral Type [Abstract]
Specific Allowance		17,000		19,000
Financing Receivable, Individually Evaluated for Impairment		3,060,000
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performing Recorded Investment		1,140,000		1,146,000
Gross loans		$ 1,003,021,000		997,175,000
Loans Receivable Additional Information [Abstract]
Debt coverage ratio		1.20x
Amortization period of loans		twenty years
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	11,739,000			11,198,000
Ending Balance [Abstract]
Loans and Leases Receivable, Including Held for Sale, Net of Deferred Income		$ 1,002,868,000		995,702,000
Loans By Collateral Type [Abstract]
Specific Allowance		1,029,000		587,000
Financing Receivable, Individually Evaluated for Impairment		$ 6,494,000
Commercial real estate | Minimum [Member]
Loans Receivable Additional Information [Abstract]
Maximum Loan-to-value Ratio (in hundredths)		65.00%
Commercial real estate | Maximum [Member]
Loans Receivable Additional Information [Abstract]
Maximum Loan-to-value Ratio (in hundredths)		80.00%
Loans secured by real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performing Recorded Investment		$ 2,506,000		2,528,000
Gross loans		1,834,590,000		1,823,803,000
Ending Balance [Abstract]
Loans and Leases Receivable, Including Held for Sale, Net of Deferred Income		1,833,947,000		1,820,460,000
Loans By Collateral Type [Abstract]
Specific Allowance		1,518,000		788,000
Financing Receivable, Individually Evaluated for Impairment		14,119,000
Agricultural loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans		139,014,000		136,023,000
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	1,023,000	1,064,000	1,130,000	1,386,000	951,000
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)		41,000	188,000	459,000
Losses charged off		0	(9,000)	(24,000)
Recoveries		0	0	0
Ending Balance [Abstract]
Loans and Leases Receivable, Including Held for Sale, Net of Deferred Income		139,136,000		136,124,000
Loans By Collateral Type [Abstract]
Specific Allowance		0		8,000
Financing Receivable, Individually Evaluated for Impairment		279,000
Commercial Including Other
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss		11,294,000	10,830,000	9,273,000	9,893,000
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)		2,815,000	1,013,000	1,053,000
Losses charged off		(972,000)	(104,000)	(1,828,000)
Recoveries		23,000	28,000	155,000
Ending Balance [Abstract]
Loans and Leases Receivable, Including Held for Sale, Net of Deferred Income		689,111,000		655,580,000
Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performing Recorded Investment		125,000		128,000
Gross loans		$ 565,714,000		528,987,000
Loans Receivable Additional Information [Abstract]
Maximum Loan-to-value Ratio (in hundredths)		80.00%
Amortization period of loans		seven years
Loans Receivable, Time Period		one year
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	9,428,000			9,273,000
Ending Balance [Abstract]
Loans and Leases Receivable, Including Held for Sale, Net of Deferred Income		$ 565,789,000		528,973,000
Loans By Collateral Type [Abstract]
Specific Allowance		312,000		301,000
Financing Receivable, Individually Evaluated for Impairment		4,134,000
Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performing Recorded Investment		4,000		5,000
Gross loans		82,330,000		83,544,000
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	1,895,000	2,011,000	1,004,000	1,429,000	$ 932,000
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)		142,000	241,000	1,394,000
Losses charged off		(171,000)	(269,000)	(1,254,000)
Recoveries		145,000	$ 100,000	357,000
Ending Balance [Abstract]
Loans and Leases Receivable, Including Held for Sale, Net of Deferred Income		82,104,000		83,183,000
Loans By Collateral Type [Abstract]
Specific Allowance		1,000		1,000
Financing Receivable, Individually Evaluated for Impairment		11,000
All other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans		123,482,000		126,807,000
Ending Balance [Abstract]
Loans and Leases Receivable, Including Held for Sale, Net of Deferred Income		123,322,000		126,607,000
Agricultural and Farm Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans		381,600,000		376,400,000
Increase (Decrease) in Accounts and Notes Receivable		$ 5,200,000
Loans Receivable Additional Information [Abstract]
Maximum Loan-to-value Ratio (in hundredths)		65.00%
Amortization period of loans		twenty five years
Loans Receivable, Time Period		one year
Corn And Other Grain Farming [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans		$ 309,400,000		301,500,000
Increase (Decrease) in Accounts and Notes Receivable		7,900,000
Motels and Hotels Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans		119,700,000
Non-residential Buildings [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans		294,600,000
Residential Buildings [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans		280,900,000
Nursing Care Facilities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans		108,700,000
Other Gambling Industries [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans		$ 123,400,000
Unsecured Open-end Loans [Member]
Loans By Collateral Type [Abstract]
Period When Loans are Charged-down		180 days
Other Secured Loans [Member]
Loans By Collateral Type [Abstract]
Period When Loans are Charged-down		120 days
Residential Real Estate
Loans Receivable Additional Information [Abstract]
Maximum Loan-to-value Ratio (in hundredths)		80.00%
Amortization period of loans		twenty five years
Balloon period		five years
Financial Asset Acquired with Credit Deterioration [Member]
Less [Abstract]
Net loans				4,586,000
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	1,198,000			365,000
Ending Balance [Abstract]
Financing Receivable, after Allowance for Credit Loss				4,951,000
Financial Asset Acquired with Credit Deterioration [Member] | Construction and land development
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	291,000			0
Ending Balance [Abstract]
Financing Receivable, after Allowance for Credit Loss				256,000
Financial Asset Acquired with Credit Deterioration [Member] | Agricultural real estate
Ending Balance [Abstract]
Financing Receivable, after Allowance for Credit Loss				0
Financial Asset Acquired with Credit Deterioration [Member] | 1-4 Family residential properties
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	48,000			6,000
Ending Balance [Abstract]
Financing Receivable, after Allowance for Credit Loss				371,000
Financial Asset Acquired with Credit Deterioration [Member] | Multifamily residential properties
Ending Balance [Abstract]
Financing Receivable, after Allowance for Credit Loss				2,077,000
Financial Asset Acquired with Credit Deterioration [Member] | Commercial real estate
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	818,000			359,000
Financial Asset Acquired with Credit Deterioration [Member] | Agricultural loans
Ending Balance [Abstract]
Financing Receivable, after Allowance for Credit Loss				0
Financial Asset Acquired with Credit Deterioration [Member] | Commercial and industrial loans
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	41,000			0
Ending Balance [Abstract]
Financing Receivable, after Allowance for Credit Loss				0
Financial Asset Acquired with Credit Deterioration [Member] | Consumer loans
Ending Balance [Abstract]
Financing Receivable, after Allowance for Credit Loss				$ 0
Loans secured by real estate
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		$ 14,685,000
Loans secured by real estate | Construction and land development
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		540,000
Loans secured by real estate | Agricultural real estate
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		150,000
Loans secured by real estate | 1-4 Family residential properties
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		3,875,000
Loans secured by real estate | Multifamily residential properties
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		3,060,000
Loans secured by real estate | Commercial real estate
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		6,494,000
Loans secured by real estate | Loans secured by real estate
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		14,119,000
Loans secured by real estate | Agricultural loans
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		239,000
Loans secured by real estate | Commercial and industrial loans
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		327,000
Loans secured by real estate | Consumer loans
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Business Assets [Member]
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		3,828,000
Business Assets [Member] | Construction and land development
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Business Assets [Member] | Agricultural real estate
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Business Assets [Member] | 1-4 Family residential properties
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Business Assets [Member] | Multifamily residential properties
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Business Assets [Member] | Commercial real estate
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Business Assets [Member] | Loans secured by real estate
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Business Assets [Member] | Agricultural loans
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		40,000
Business Assets [Member] | Commercial and industrial loans
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		3,788,000
Business Assets [Member] | Consumer loans
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Other Property [Member]
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		30,000
Other Property [Member] | Construction and land development
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Other Property [Member] | Agricultural real estate
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Other Property [Member] | 1-4 Family residential properties
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Other Property [Member] | Multifamily residential properties
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Other Property [Member] | Commercial real estate
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Other Property [Member] | Loans secured by real estate
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Other Property [Member] | Agricultural loans
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		0
Other Property [Member] | Commercial and industrial loans
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		19,000
Other Property [Member] | Consumer loans
Loans By Collateral Type [Abstract]
Financing Receivable, Individually Evaluated for Impairment		$ 11,000
Accounting Standards Update 2016-13 [Member]
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	1,672,000
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)	1,672,000
Accounting Standards Update 2016-13 [Member] | Construction and land development
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	(113,000)
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)	(113,000)
Accounting Standards Update 2016-13 [Member] | Agricultural real estate
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	230,000
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)	230,000
Accounting Standards Update 2016-13 [Member] | 1-4 Family residential properties
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	756,000
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)	756,000
Accounting Standards Update 2016-13 [Member] | Commercial Real Estate Including Multifamily
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)	541,000
Accounting Standards Update 2016-13 [Member] | Commercial real estate
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	541,000
Accounting Standards Update 2016-13 [Member] | Agricultural loans
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	(363,000)
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)	(363,000)
Accounting Standards Update 2016-13 [Member] | Commercial Including Other
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)	155,000
Accounting Standards Update 2016-13 [Member] | Commercial and industrial loans
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	155,000
Accounting Standards Update 2016-13 [Member] | Consumer loans
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	466,000
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)	466,000
Accounting Standards Update 2016-13 [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	833,000
Accounting Standards Update 2016-13 [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Construction and land development
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	291,000
Accounting Standards Update 2016-13 [Member] | Financial Asset Acquired with Credit Deterioration [Member] | 1-4 Family residential properties
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	42,000
Accounting Standards Update 2016-13 [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Commercial real estate
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	459,000
Accounting Standards Update 2016-13 [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Commercial and industrial loans
Allowance for Loan Losses [Abstract]
Financing Receivable, Allowance for Credit Loss	$ 41,000

Loans and Allowance for Loan _4

Loans and Allowance for Loan Losses, Part II (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2020USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2019USD ($)
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	$ 245,334,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	663,509,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	423,983,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	382,065,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	302,123,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	681,539,000
Financing Receivable, Revolving	45,745,000
Loans Receivable Aging Analysis [Abstract]
Total Past Due	39,197,000		$ 27,593,000
Current	2,705,101,000		2,667,754,000
Total Loans Receivable	2,744,298,000		2,695,347,000
Total Loans 90 Days & Accruing	$ 0		0
Number of days past due when interest is not accrued	ninety days
Period of satisfactory performance before returning to accrual status	not less than six months
Loans with a specific allowance [Abstract]
Recorded Balance	$ 20,389,000		23,440,000
Unpaid Principal Balance	23,662,000		25,861,000
Specific Allowance	1,831,000		1,098,000
Loans without a specific allowance [Abstract]
Recorded Balance	7,152,000		7,991,000
Unpaid Principal Balance	9,913,000		10,425,000
Total Loans [Abstract]
Recorded Balance	27,541,000		31,431,000
Unpaid Principal Balance	33,575,000		36,286,000
Average recorded investment and interest income recognized [Abstract]
Average investment in impaired loans	31,294,000	$ 30,925,000
Interest income recognized	71,000	30,000
Balances of Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual, No Allowance	11,922,000
Financing Receivable, Nonaccrual	21,787,000		25,118,000
Interest Lost on Nonaccrual Loans	1,029,000	1,097,000
Troubled Debt Restructuring [Abstract]
Financing Receivable Modifications Performing Recorded Investment	$ 2,676,000	$ 2,100,000	2,701,000
Recorded Balance of Troubled Debt Restructurings [Abstract]
Financing Receivables, Modifications during Period, Number	3	5
Financing Receivables, Modifications during Period, Balance	$ 323,000	$ 615,000
Subsequent Default, Number of Days Past Due	90 days
Loans Receivable, Modifications, Allowance	$ 528,000		381,000
Real Estate Acquired Through Foreclosure	2,784,000		3,644,000
Mortgage Loans Secured By Real Estate In Foreclosure	1,190,000		667,000
Troubled Debt Restructurings Balance	5,599,000		5,803,000
Construction and land development
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	47,279,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	58,076,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	6,708,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	3,471,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	997,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	6,795,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Past Due	0		235,000
Current	123,326,000		93,907,000
Total Loans Receivable	123,326,000		94,142,000
Total Loans 90 Days & Accruing	0		0
Loans with a specific allowance [Abstract]
Recorded Balance	540,000		256,000
Unpaid Principal Balance	540,000		256,000
Specific Allowance	269,000		0
Loans without a specific allowance [Abstract]
Recorded Balance	39,000		41,000
Unpaid Principal Balance	39,000		41,000
Total Loans [Abstract]
Recorded Balance	579,000		297,000
Unpaid Principal Balance	579,000		297,000
Average recorded investment and interest income recognized [Abstract]
Average investment in impaired loans	600,000	813,000
Interest income recognized	8,000	0
Balances of Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual, No Allowance	0
Financing Receivable, Nonaccrual	39,000		41,000
Agricultural real estate
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	13,143,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	47,479,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	51,528,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	21,101,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	17,808,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	91,832,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Past Due	1,530,000		1,642,000
Current	241,361,000		238,599,000
Total Loans Receivable	242,891,000		240,241,000
Total Loans 90 Days & Accruing	0		0
Loans with a specific allowance [Abstract]
Recorded Balance	150,000		0
Unpaid Principal Balance	150,000		0
Specific Allowance	0		0
Loans without a specific allowance [Abstract]
Recorded Balance	419,000		479,000
Unpaid Principal Balance	419,000		479,000
Total Loans [Abstract]
Recorded Balance	569,000		479,000
Unpaid Principal Balance	569,000		479,000
Average recorded investment and interest income recognized [Abstract]
Average investment in impaired loans	1,202,000	1,239,000
Interest income recognized	0	0
Balances of Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual, No Allowance	150,000
Financing Receivable, Nonaccrual	569,000		479,000
1-4 Family residential properties
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	9,335,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	32,797,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	35,608,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	31,744,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	31,577,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	138,322,000
Financing Receivable, Revolving	45,745,000
Loans Receivable Aging Analysis [Abstract]
Total Past Due	9,291,000		10,835,000
Current	315,837,000		325,592,000
Total Loans Receivable	325,128,000		336,427,000
Total Loans 90 Days & Accruing	0		0
Loans with a specific allowance [Abstract]
Recorded Balance	5,449,000		5,154,000
Unpaid Principal Balance	5,668,000		5,351,000
Specific Allowance	203,000		182,000
Loans without a specific allowance [Abstract]
Recorded Balance	3,333,000		3,719,000
Unpaid Principal Balance	4,001,000		4,263,000
Total Loans [Abstract]
Recorded Balance	8,782,000		8,873,000
Unpaid Principal Balance	9,669,000		9,614,000
Average recorded investment and interest income recognized [Abstract]
Average investment in impaired loans	8,997,000	8,690,000
Interest income recognized	18,000	$ 23,000
Balances of Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual, No Allowance	3,478,000
Financing Receivable, Nonaccrual	7,416,000		7,379,000
Troubled Debt Restructuring [Abstract]
Financing Receivable Modifications Performing Recorded Investment	$ 1,366,000		1,382,000
Recorded Balance of Troubled Debt Restructurings [Abstract]
Financing Receivables, Modifications during Period, Number	0	1
Financing Receivables, Modifications during Period, Balance	$ 0	$ 46,000
Troubled Debt Restructurings Balance	1,882,000		1,905,000
Multifamily residential properties
Loans Receivable Aging Analysis [Abstract]
Total Past Due	875,000		2,525,000
Current	138,859,000		151,423,000
Total Loans Receivable	139,734,000		153,948,000
Total Loans 90 Days & Accruing	0		0
Loans with a specific allowance [Abstract]
Recorded Balance	3,133,000		4,254,000
Unpaid Principal Balance	3,133,000		4,254,000
Specific Allowance	17,000		19,000
Loans without a specific allowance [Abstract]
Recorded Balance	44,000		0
Unpaid Principal Balance	44,000		0
Total Loans [Abstract]
Recorded Balance	3,177,000		4,254,000
Unpaid Principal Balance	3,177,000		4,254,000
Average recorded investment and interest income recognized [Abstract]
Average investment in impaired loans	3,323,000	1,718,000
Interest income recognized	1,000	0
Balances of Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual, No Allowance	2,260,000
Financing Receivable, Nonaccrual	3,104,000		3,137,000
Commercial real estate
Loans Receivable Aging Analysis [Abstract]
Total Past Due	18,735,000		3,338,000
Current	984,133,000		992,364,000
Total Loans Receivable	1,002,868,000		995,702,000
Total Loans 90 Days & Accruing	0		0
Loans with a specific allowance [Abstract]
Recorded Balance	6,494,000		5,904,000
Unpaid Principal Balance	6,998,000		6,408,000
Specific Allowance	1,029,000		587,000
Loans without a specific allowance [Abstract]
Recorded Balance	1,463,000		1,721,000
Unpaid Principal Balance	1,540,000		1,724,000
Total Loans [Abstract]
Recorded Balance	7,957,000		7,625,000
Unpaid Principal Balance	8,538,000		8,132,000
Average recorded investment and interest income recognized [Abstract]
Average investment in impaired loans	8,266,000	10,359,000
Interest income recognized	42,000	$ 6,000
Balances of Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual, No Allowance	1,273,000
Financing Receivable, Nonaccrual	4,351,000		4,351,000
Troubled Debt Restructuring [Abstract]
Financing Receivable Modifications Performing Recorded Investment	$ 1,140,000		1,146,000
Recorded Balance of Troubled Debt Restructurings [Abstract]
Financing Receivables, Modifications during Period, Number	1	1
Financing Receivables, Modifications during Period, Balance	$ 305,000	$ 483,000
Troubled Debt Restructurings Balance	2,008,000		1,746,000
Commercial Real Estate Including Multifamily
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	50,922,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	209,016,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	183,020,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	214,536,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	188,511,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	296,597,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,142,602,000		1,149,650,000
Loans secured by real estate
Loans Receivable Aging Analysis [Abstract]
Total Past Due	30,431,000		18,575,000
Current	1,803,516,000		1,801,885,000
Total Loans Receivable	1,833,947,000		1,820,460,000
Total Loans 90 Days & Accruing	0		0
Loans with a specific allowance [Abstract]
Recorded Balance	15,766,000		15,568,000
Unpaid Principal Balance	16,489,000		16,269,000
Specific Allowance	1,518,000		788,000
Loans without a specific allowance [Abstract]
Recorded Balance	5,298,000		5,960,000
Unpaid Principal Balance	6,043,000		6,507,000
Total Loans [Abstract]
Recorded Balance	21,064,000		21,528,000
Unpaid Principal Balance	22,532,000		22,776,000
Average recorded investment and interest income recognized [Abstract]
Average investment in impaired loans	22,388,000	22,819,000
Interest income recognized	69,000	$ 29,000
Balances of Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual, No Allowance	7,161,000
Financing Receivable, Nonaccrual	15,479,000		15,387,000
Troubled Debt Restructuring [Abstract]
Financing Receivable Modifications Performing Recorded Investment	$ 2,506,000		2,528,000
Recorded Balance of Troubled Debt Restructurings [Abstract]
Financing Receivables, Modifications during Period, Number	1	2
Financing Receivables, Modifications during Period, Balance	$ 305,000	$ 529,000
Troubled Debt Restructurings Balance	3,890,000		3,651,000
Agricultural loans
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	33,077,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	82,596,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	12,046,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	4,427,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,813,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	5,177,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Past Due	518,000		607,000
Current	138,618,000		135,517,000
Total Loans Receivable	139,136,000		136,124,000
Total Loans 90 Days & Accruing	0		0
Loans with a specific allowance [Abstract]
Recorded Balance	279,000		85,000
Unpaid Principal Balance	852,000		669,000
Specific Allowance	0		8,000
Loans without a specific allowance [Abstract]
Recorded Balance	583,000		724,000
Unpaid Principal Balance	10,000		140,000
Total Loans [Abstract]
Recorded Balance	862,000		809,000
Unpaid Principal Balance	862,000		809,000
Average recorded investment and interest income recognized [Abstract]
Average investment in impaired loans	960,000	664,000
Interest income recognized	0	0
Loans Receivable, Modifications, Still Accruing Interest	41,000	40,000
Balances of Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual, No Allowance	812,000
Financing Receivable, Nonaccrual	822,000		769,000
Recorded Balance of Troubled Debt Restructurings [Abstract]
Troubled Debt Restructurings Balance	553,000		669,000
Commercial and industrial loans
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	83,340,000
Loans Receivable Aging Analysis [Abstract]
Total Past Due	7,551,000		7,611,000
Current	558,238,000		521,362,000
Total Loans Receivable	565,789,000		528,973,000
Total Loans 90 Days & Accruing	0		0
Loans with a specific allowance [Abstract]
Recorded Balance	4,205,000		7,653,000
Unpaid Principal Balance	6,182,000		8,789,000
Specific Allowance	312,000		301,000
Loans without a specific allowance [Abstract]
Recorded Balance	914,000		916,000
Unpaid Principal Balance	3,076,000		3,065,000
Total Loans [Abstract]
Recorded Balance	5,119,000		8,569,000
Unpaid Principal Balance	9,258,000		11,854,000
Average recorded investment and interest income recognized [Abstract]
Average investment in impaired loans	7,402,000	6,698,000
Interest income recognized	2,000	$ 1,000
Balances of Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual, No Allowance	3,824,000
Financing Receivable, Nonaccrual	4,994,000		8,441,000
Troubled Debt Restructuring [Abstract]
Financing Receivable Modifications Performing Recorded Investment	$ 125,000		128,000
Recorded Balance of Troubled Debt Restructurings [Abstract]
Financing Receivables, Modifications during Period, Number	1	2
Financing Receivables, Modifications during Period, Balance	$ 7,000	$ 72,000
Troubled Debt Restructurings Balance	1,017,000		1,349,000
Commercial Including Other
Credit Quality Information [Abstract]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	201,506,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	114,453,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	94,150,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	55,303,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	140,359,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	689,111,000		655,580,000
Consumer loans
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	8,238,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	32,039,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	20,620,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	12,636,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	6,114,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,457,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Past Due	697,000		800,000
Current	81,407,000		82,383,000
Total Loans Receivable	82,104,000		83,183,000
Total Loans 90 Days & Accruing	0		0
Loans with a specific allowance [Abstract]
Recorded Balance	139,000		134,000
Unpaid Principal Balance	139,000		134,000
Specific Allowance	1,000		1,000
Loans without a specific allowance [Abstract]
Recorded Balance	357,000		391,000
Unpaid Principal Balance	784,000		713,000
Total Loans [Abstract]
Recorded Balance	496,000		525,000
Unpaid Principal Balance	923,000		847,000
Average recorded investment and interest income recognized [Abstract]
Average investment in impaired loans	544,000	744,000
Interest income recognized	0	$ 0
Balances of Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual, No Allowance	125,000
Financing Receivable, Nonaccrual	492,000		521,000
Troubled Debt Restructuring [Abstract]
Financing Receivable Modifications Performing Recorded Investment	$ 4,000		5,000
Recorded Balance of Troubled Debt Restructurings [Abstract]
Financing Receivables, Modifications during Period, Number	1	1
Financing Receivables, Modifications during Period, Balance	$ 11,000	$ 14,000
Troubled Debt Restructurings Balance	139,000		134,000
All other loans
Loans Receivable Aging Analysis [Abstract]
Total Past Due	0		0
Current	123,322,000		126,607,000
Total Loans Receivable	123,322,000		126,607,000
Total Loans 90 Days & Accruing	0		0
Average recorded investment and interest income recognized [Abstract]
Average investment in impaired loans	0	0
Interest income recognized	0	$ 0
Financial Asset, 30 to 59 Days Past Due [Member]
Loans Receivable Aging Analysis [Abstract]
Total Past Due	24,411,000		9,135,000
Financial Asset, 30 to 59 Days Past Due [Member] | Construction and land development
Loans Receivable Aging Analysis [Abstract]
Total Past Due	0		235,000
Financial Asset, 30 to 59 Days Past Due [Member] | Agricultural real estate
Loans Receivable Aging Analysis [Abstract]
Total Past Due	841,000		1,595,000
Financial Asset, 30 to 59 Days Past Due [Member] | 1-4 Family residential properties
Loans Receivable Aging Analysis [Abstract]
Total Past Due	5,617,000		3,834,000
Financial Asset, 30 to 59 Days Past Due [Member] | Multifamily residential properties
Loans Receivable Aging Analysis [Abstract]
Total Past Due	0		1,348,000
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial real estate
Loans Receivable Aging Analysis [Abstract]
Total Past Due	15,443,000		602,000
Financial Asset, 30 to 59 Days Past Due [Member] | Loans secured by real estate
Loans Receivable Aging Analysis [Abstract]
Total Past Due	21,901,000		7,614,000
Financial Asset, 30 to 59 Days Past Due [Member] | Agricultural loans
Loans Receivable Aging Analysis [Abstract]
Total Past Due	407,000		300,000
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial and industrial loans
Loans Receivable Aging Analysis [Abstract]
Total Past Due	1,631,000		767,000
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer loans
Loans Receivable Aging Analysis [Abstract]
Total Past Due	472,000		454,000
Financial Asset, 30 to 59 Days Past Due [Member] | All other loans
Loans Receivable Aging Analysis [Abstract]
Total Past Due	0		0
Financial Asset, 60 to 89 Days Past Due [Member]
Loans Receivable Aging Analysis [Abstract]
Total Past Due	3,767,000		3,880,000
Financial Asset, 60 to 89 Days Past Due [Member] | Construction and land development
Loans Receivable Aging Analysis [Abstract]
Total Past Due	0		0
Financial Asset, 60 to 89 Days Past Due [Member] | Agricultural real estate
Loans Receivable Aging Analysis [Abstract]
Total Past Due	476,000		0
Financial Asset, 60 to 89 Days Past Due [Member] | 1-4 Family residential properties
Loans Receivable Aging Analysis [Abstract]
Total Past Due	1,526,000		2,288,000
Financial Asset, 60 to 89 Days Past Due [Member] | Multifamily residential properties
Loans Receivable Aging Analysis [Abstract]
Total Past Due	875,000		46,000
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial real estate
Loans Receivable Aging Analysis [Abstract]
Total Past Due	129,000		495,000
Financial Asset, 60 to 89 Days Past Due [Member] | Loans secured by real estate
Loans Receivable Aging Analysis [Abstract]
Total Past Due	3,006,000		2,829,000
Financial Asset, 60 to 89 Days Past Due [Member] | Agricultural loans
Loans Receivable Aging Analysis [Abstract]
Total Past Due	100,000		0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial and industrial loans
Loans Receivable Aging Analysis [Abstract]
Total Past Due	562,000		855,000
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer loans
Loans Receivable Aging Analysis [Abstract]
Total Past Due	99,000		196,000
Financial Asset, 60 to 89 Days Past Due [Member] | All other loans
Loans Receivable Aging Analysis [Abstract]
Total Past Due	0		0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans Receivable Aging Analysis [Abstract]
Total Past Due	11,019,000		14,578,000
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction and land development
Loans Receivable Aging Analysis [Abstract]
Total Past Due	0		0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Agricultural real estate
Loans Receivable Aging Analysis [Abstract]
Total Past Due	213,000		47,000
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | 1-4 Family residential properties
Loans Receivable Aging Analysis [Abstract]
Total Past Due	2,148,000		4,713,000
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Multifamily residential properties
Loans Receivable Aging Analysis [Abstract]
Total Past Due	0		1,131,000
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial real estate
Loans Receivable Aging Analysis [Abstract]
Total Past Due	3,163,000		2,241,000
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Loans secured by real estate
Loans Receivable Aging Analysis [Abstract]
Total Past Due	5,524,000		8,132,000
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Agricultural loans
Loans Receivable Aging Analysis [Abstract]
Total Past Due	11,000		307,000
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial and industrial loans
Loans Receivable Aging Analysis [Abstract]
Total Past Due	5,358,000		5,989,000
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer loans
Loans Receivable Aging Analysis [Abstract]
Total Past Due	126,000		150,000
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | All other loans
Loans Receivable Aging Analysis [Abstract]
Total Past Due	0		0
Pass [Member]
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	242,095,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	619,708,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	410,622,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	369,676,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	286,018,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	632,677,000
Financing Receivable, Revolving	44,251,000
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	2,605,047,000		2,558,157,000
Pass [Member] | Construction and land development
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	47,279,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	57,767,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	4,912,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,931,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	604,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	6,722,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	120,215,000		93,413,000
Pass [Member] | Agricultural real estate
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	12,868,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	44,321,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	48,157,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	20,904,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	16,689,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	87,879,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	230,818,000		231,227,000
Pass [Member] | 1-4 Family residential properties
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	9,125,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	32,088,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	33,208,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	28,598,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	29,270,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	128,255,000
Financing Receivable, Revolving	44,251,000
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	304,795,000		314,999,000
Pass [Member] | Commercial Real Estate Including Multifamily
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	49,604,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	208,865,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	178,757,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	208,454,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	179,026,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	271,285,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,095,991,000		1,103,543,000
Pass [Member] | Loans secured by real estate
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable			1,743,182,000
Pass [Member] | Agricultural loans
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	32,007,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	79,071,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	11,469,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	3,914,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,732,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	4,780,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	132,973,000		129,811,000
Pass [Member] | Commercial and industrial loans
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	83,001,000
Pass [Member] | Commercial Including Other
Credit Quality Information [Abstract]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	165,672,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	113,733,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	92,434,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	52,819,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	131,520,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	639,179,000		603,047,000
Pass [Member] | Consumer loans
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	8,211,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	31,924,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	20,386,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	12,441,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,878,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,236,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	81,076,000		82,117,000
Special Mention [Member]
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	1,365,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	40,559,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	8,161,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	3,101,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	8,839,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	14,777,000
Financing Receivable, Revolving	256,000
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	77,058,000		71,611,000
Special Mention [Member] | Construction and land development
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	309,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,796,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	393,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	15,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	2,513,000		413,000
Special Mention [Member] | Agricultural real estate
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	275,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	3,008,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,512,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,088,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	3,444,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	10,327,000		6,902,000
Special Mention [Member] | 1-4 Family residential properties
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	154,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	335,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	325,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,055,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	254,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,929,000
Financing Receivable, Revolving	256,000
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	4,308,000		5,743,000
Special Mention [Member] | Commercial Real Estate Including Multifamily
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	61,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	24,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,857,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,795,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	4,912,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	4,109,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	13,758,000		14,156,000
Special Mention [Member] | Loans secured by real estate
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable			27,214,000
Special Mention [Member] | Agricultural loans
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	838,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	3,320,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	364,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	81,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	274,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	4,877,000		3,862,000
Special Mention [Member] | Commercial and industrial loans
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	10,000
Special Mention [Member] | Commercial Including Other
Credit Quality Information [Abstract]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	33,495,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	257,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	241,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,054,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	4,984,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	41,041,000		40,395,000
Special Mention [Member] | Consumer loans
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	27,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	68,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	50,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	10,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	57,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	22,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	234,000		140,000
Substandard [Member]
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	1,874,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	3,242,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	5,200,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	9,288,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	7,266,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	34,085,000
Financing Receivable, Revolving	1,238,000
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	62,193,000		65,579,000
Substandard [Member] | Construction and land development
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	540,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	58,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	598,000		316,000
Substandard [Member] | Agricultural real estate
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	150,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	859,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	197,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	31,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	509,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,746,000		2,112,000
Substandard [Member] | 1-4 Family residential properties
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	56,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	374,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,075,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,091,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,053,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	8,138,000
Financing Receivable, Revolving	1,238,000
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	16,025,000		15,685,000
Substandard [Member] | Commercial Real Estate Including Multifamily
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	1,257,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	127,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,406,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	4,287,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	4,573,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	21,203,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	32,853,000		31,951,000
Substandard [Member] | Loans secured by real estate
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable			50,064,000
Substandard [Member] | Agricultural loans
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	232,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	205,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	213,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	513,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	123,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,286,000		2,451,000
Substandard [Member] | Commercial and industrial loans
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	329,000
Substandard [Member] | Commercial Including Other
Credit Quality Information [Abstract]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,339,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	463,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,475,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	430,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	3,855,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	8,891,000		12,138,000
Substandard [Member] | Consumer loans
Credit Quality Information [Abstract]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	47,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	184,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	185,000
Financing Receivable, Originated Four Years before Latest Fiscal Year	179,000
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	199,000
Financing Receivable, Revolving	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	$ 794,000		$ 926,000

Loans and Allowance for Loan _5

Loans and Allowance for Loan Losses Loans and Allowance for Loan Losses, Part III (PCI Loans) (Details) - USD ($)	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Carrying Amount [Abstract]
Allowance for loan losses	$ (32,876,000)	$ (28,583,000)	$ (26,911,000)	$ (26,704,000)	$ (26,189,000)
Carrying amount, net of allowance	2,710,171,000		2,666,616,000
Financial Asset Acquired with Credit Deterioration [Member]
Carrying Amount [Abstract]
Carrying amount			4,951,000
Allowance for loan losses		(1,198,000)	(365,000)
Carrying amount, net of allowance			4,586,000
Financing Receivable, Allowance for Credit Losses Reversed			1,229,000
Agricultural loans
Carrying Amount [Abstract]
Allowance for loan losses	(1,064,000)	(1,023,000)	(1,386,000)	(1,130,000)	(951,000)
Agricultural loans | Financial Asset Acquired with Credit Deterioration [Member]
Carrying Amount [Abstract]
Carrying amount			0
Construction and land development
Carrying Amount [Abstract]
Allowance for loan losses	(1,620,000)	(1,033,000)	(1,146,000)	(552,000)	(561,000)
Construction and land development | Financial Asset Acquired with Credit Deterioration [Member]
Carrying Amount [Abstract]
Carrying amount			256,000
Allowance for loan losses		(291,000)	0
Agricultural real estate
Carrying Amount [Abstract]
Allowance for loan losses	(1,335,000)	(1,323,000)	(1,093,000)	(1,282,000)	(1,246,000)
Agricultural real estate | Financial Asset Acquired with Credit Deterioration [Member]
Carrying Amount [Abstract]
Carrying amount			0
1-4 Family residential properties
Carrying Amount [Abstract]
Allowance for loan losses	(1,931,000)	(2,142,000)	(1,386,000)	(1,341,000)	(1,504,000)
1-4 Family residential properties | Financial Asset Acquired with Credit Deterioration [Member]
Carrying Amount [Abstract]
Carrying amount			371,000
Allowance for loan losses		(48,000)	(6,000)
Multifamily residential properties | Financial Asset Acquired with Credit Deterioration [Member]
Carrying Amount [Abstract]
Carrying amount			2,077,000
Commercial real estate | Financial Asset Acquired with Credit Deterioration [Member]
Carrying Amount [Abstract]
Carrying amount			2,247,000
Real Estate Loan [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Carrying Amount [Abstract]
Carrying amount			4,951,000
Commercial and industrial loans
Carrying Amount [Abstract]
Allowance for loan losses		(9,428,000)	(9,273,000)
Commercial and industrial loans | Financial Asset Acquired with Credit Deterioration [Member]
Carrying Amount [Abstract]
Carrying amount			0
Allowance for loan losses		(41,000)	0
Consumer loans
Carrying Amount [Abstract]
Allowance for loan losses	$ (2,011,000)	$ (1,895,000)	(1,429,000)	$ (1,004,000)	$ (932,000)
Consumer loans | Financial Asset Acquired with Credit Deterioration [Member]
Carrying Amount [Abstract]
Carrying amount			$ 0

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Gross Carrying Value [Abstract]
Goodwill not subject to amortization (effective 1/1/02)	$ 108,752	$ 108,752
Total Goodwill And Intangible Assets, Gross Carrying Value	160,511	160,251
Goodwill and Intangible Assets Accumulated Amortization [Abstract]
Goodwill not subject to amortization (effective 1/1/02)	3,760	3,760
Total Goodwill and Intangible Assets, Accumulated Amortization	29,608	28,438
Intangibles from branch acquisition
Goodwill and Intangible Assets Gross Carrying Value [Abstract]
Finite-Lived Intangible Assets, Gross	3,015	3,015
Goodwill and Intangible Assets Accumulated Amortization [Abstract]
Finite-Lived Intangible Assets, Accumulated Amortization	3,015	3,015
Core Deposits [Member]
Goodwill and Intangible Assets Gross Carrying Value [Abstract]
Finite-Lived Intangible Assets, Gross	32,355	32,355
Goodwill and Intangible Assets Accumulated Amortization [Abstract]
Finite-Lived Intangible Assets, Accumulated Amortization	18,589	17,746
Customer Lists [Member]
Goodwill and Intangible Assets Gross Carrying Value [Abstract]
Finite-Lived Intangible Assets, Gross	16,389	16,129
Goodwill and Intangible Assets Accumulated Amortization [Abstract]
Finite-Lived Intangible Assets, Accumulated Amortization	$ 4,244	$ 3,917

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Total Amortization Expense [Abstract]
Amortization of intangible assets	$ 1,295	$ 1,356
Estimated Amortization Expense [Abstract]
For period 4/01/20-12/31/20	3,674
For year ended 12/31/20	4,285
For year ended 12/31/21	3,919
For year ended 12/31/22	3,498
For year ended 12/31/23	2,946
For year ended 12/31/24	2,633
Core Deposits [Member]
Total Amortization Expense [Abstract]
Amortization of intangible assets	843	980
Customer Lists [Member]
Total Amortization Expense [Abstract]
Amortization of intangible assets	326	318
Mortgage Servicing Rights [Member]
Total Amortization Expense [Abstract]
Amortization of intangible assets	$ 126	$ 58

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets Mortgage Servicing Rights (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Mortgage Servicing Rights (MSR) Impairment (Recovery)	$ (268,000)
Mortgage Servicing Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	0	$ 0	$ 0
Capitalization Of Mortgage Servicing Rights	0	0	0
Mortgage Servicing Rights (MSR) Impairment (Recovery)	(18,000)	0	380,000
Amortization of Mortgage Servicing Rights	(126,000)	(58,000)	(411,000)
MSR Interest Only Strip	(4,000)	0	(134,000)
Finite-Lived Intangible Assets, Net	$ 1,296,000	$ 2,043,000	$ 1,444,000	$ 2,101,000

Repurchase Agreements and Oth_3

Repurchase Agreements and Other Borrowings (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Repurchase Agreements and Other Borrowings [Abstract]
Securities Sold under Agreements to Repurchase	$ 231,649,000	$ 208,109,000
Securities Sold under Agreements to Repurchase Increase (Decrease)	23,500,000
Disclosure of Repurchase Agreements [Abstract]
Securities pledged to Repurchase Agreements	$ 231,649,000	208,109,000
Securities Sold Under Agreements to Repurchase Weighted Average Rate	0.12%
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term		114,000,000
FHLB Advance 1.5-Year Original Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 10,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P1Y6M
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	2.95%
FHLB Advance, 2-Year Original Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P2Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	2.75%
FHLB advance, 3-Year Original Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P3Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.75%
FHLB Advance 3.5 Year Original Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P3Y6M
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.83%
FHLB Advance 3.5-Year Original Maturity 2 [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P3Y6M
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.51%
FHLB Advance 3.5-Year Original Maturity 3 [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P3Y6M
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	0.77%
FHLB Advance 4-Year Original Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P4Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.79%
FHLB Advance 5-Year Original Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P5Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.85%
FHLB Advance 5-Year Original Maturity 2 [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P5Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	2.71%
FHLB Advance 5-Year Original Maturity 3 [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 10,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P5Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.45%
FHLB Advance 5-Year Original Maturity 4 [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P5Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	0.91%
FHLB advance, 6-Year Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P6Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	2.30%
FHLB Advance, 7 Year Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P7Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	2.55%
FHLB advance, 8-Year Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P8Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	2.40%
FHLB Advance 10-Year Original Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P10Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.14%
FHLB Advance 10-Year Original Maturity 2 [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P10Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.15%
FHLB Advance 10-Year Original Maturity 3 [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P10Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.12%
FHLB Advance 10-Year Original Maturity 4 [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 10,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P10Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.39%
FHLB Advance 10-Year Original Maturity 5 [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 15,000,000
Federal Home Loan Bank Advances, Original Maturity Term	P10Y
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.41%
U.S. Treasury securities and obligations of U.S. government corporations & agencies
Disclosure of Repurchase Agreements [Abstract]
Securities pledged to Repurchase Agreements	$ 36,437,000	77,333,000
Residential Mortgage-backed Securities [Member]
Disclosure of Repurchase Agreements [Abstract]
Securities pledged to Repurchase Agreements	194,144,000	128,401,000
Obligations of states and political subdivisions
Disclosure of Repurchase Agreements [Abstract]
Securities pledged to Repurchase Agreements	0	2,375,000
Other Security Investments [Member]
Disclosure of Repurchase Agreements [Abstract]
Securities pledged to Repurchase Agreements	$ 1,068,000	$ 0

Fair Value of Assets and Liab_3

Fair Value of Assets and Liabilities (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Available-for-sale: [Abstract]
Total available-for-sale securities	$ 617,801,000		$ 686,048,000
Impaired Loans Receivable [Abstract]
Carrying amount of loans with a specific allowance	23,662,000		25,861,000
Fair value of loans with a specific allowance	20,389,000		23,440,000
Specific Allowance	1,831,000		1,098,000
Fair Value, Recurring [Member]
Available-for-sale: [Abstract]
Total available-for-sale securities	617,801,000		686,048,000
Interest Rate Derivative Assets at Fair Value	1,002,000
Interest Rate Derivative Liabilities, at Fair Value	2,710,000		325,000
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Available-for-sale: [Abstract]
Total available-for-sale securities	146,000		219,000
Interest Rate Derivative Assets at Fair Value	0
Interest Rate Derivative Liabilities, at Fair Value	0		0
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2)
Available-for-sale: [Abstract]
Total available-for-sale securities	616,865,000		684,856,000
Interest Rate Derivative Assets at Fair Value	1,002,000
Interest Rate Derivative Liabilities, at Fair Value	2,710,000		325,000
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3)
Available-for-sale: [Abstract]
Total available-for-sale securities	790,000		973,000
Interest Rate Derivative Assets at Fair Value	0
Interest Rate Derivative Liabilities, at Fair Value	0		0
Fair Value, Nonrecurring [Member]
Impaired Loans Receivable [Abstract]
Carrying amount of loans with a specific allowance	11,124,000
Fair value of loans with a specific allowance	9,514,000
Specific Allowance	1,610,000
U.S. Treasury securities and obligations of U.S. government corporations & agencies
Available-for-sale: [Abstract]
Total available-for-sale securities	56,689,000		107,320,000
U.S. Treasury securities and obligations of U.S. government corporations & agencies | Fair Value, Recurring [Member]
Available-for-sale: [Abstract]
Total available-for-sale securities	56,689,000		107,320,000
U.S. Treasury securities and obligations of U.S. government corporations & agencies | Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Available-for-sale: [Abstract]
Total available-for-sale securities	0		0
U.S. Treasury securities and obligations of U.S. government corporations & agencies | Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2)
Available-for-sale: [Abstract]
Total available-for-sale securities	56,689,000		107,320,000
U.S. Treasury securities and obligations of U.S. government corporations & agencies | Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3)
Available-for-sale: [Abstract]
Total available-for-sale securities	0		0
Obligations of states and political subdivisions
Available-for-sale: [Abstract]
Total available-for-sale securities	163,502,000		178,433,000
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	973,000	$ 967,000
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Total gains or losses [Abstract]
Included in net income	1,000	(1,000)
Included in other comprehensive income (loss)	0	0
Purchases, issuances, sales and settlements [Abstract]
Purchases	0	0
Issuances	0	0
Sales	(184,000)	0
Settlements	0	0
Ending Balance	790,000	968,000
Total gains or losses for the period included in net income attributable to the change in unrealized gains or losses related to assets and liabilities still held at the reporting date	0	$ 0
Obligations of states and political subdivisions | Fair Value, Recurring [Member]
Available-for-sale: [Abstract]
Total available-for-sale securities	163,502,000		178,433,000
Obligations of states and political subdivisions | Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Available-for-sale: [Abstract]
Total available-for-sale securities	0		0
Obligations of states and political subdivisions | Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2)
Available-for-sale: [Abstract]
Total available-for-sale securities	162,712,000		177,460,000
Obligations of states and political subdivisions | Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3)
Available-for-sale: [Abstract]
Total available-for-sale securities	790,000		973,000
Residential Mortgage-backed Securities [Member]
Available-for-sale: [Abstract]
Total available-for-sale securities	395,511,000		396,126,000
Residential Mortgage-backed Securities [Member] | Fair Value, Recurring [Member]
Available-for-sale: [Abstract]
Total available-for-sale securities	395,511,000		396,126,000
Residential Mortgage-backed Securities [Member] | Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Available-for-sale: [Abstract]
Total available-for-sale securities	0		0
Residential Mortgage-backed Securities [Member] | Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2)
Available-for-sale: [Abstract]
Total available-for-sale securities	395,511,000		396,126,000
Residential Mortgage-backed Securities [Member] | Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3)
Available-for-sale: [Abstract]
Total available-for-sale securities	0		0
Other securities
Available-for-sale: [Abstract]
Total available-for-sale securities	2,099,000		4,169,000
Other securities | Fair Value, Recurring [Member]
Available-for-sale: [Abstract]
Total available-for-sale securities	2,099,000		4,169,000
Other securities | Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Available-for-sale: [Abstract]
Total available-for-sale securities	146,000		219,000
Other securities | Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2)
Available-for-sale: [Abstract]
Total available-for-sale securities	1,953,000		3,950,000
Other securities | Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3)
Available-for-sale: [Abstract]
Total available-for-sale securities	0		0
Impaired Loans (Collateral Dependent) [Member] | Fair Value, Nonrecurring [Member]
Available-for-sale: [Abstract]
Assets, Fair Value Disclosure	9,514,000		12,727,000
Impaired Loans (Collateral Dependent) [Member] | Fair Value, Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Available-for-sale: [Abstract]
Assets, Fair Value Disclosure	0		0
Impaired Loans (Collateral Dependent) [Member] | Fair Value, Nonrecurring [Member] | Significant Other Observable Inputs (Level 2)
Available-for-sale: [Abstract]
Assets, Fair Value Disclosure	0		0
Impaired Loans (Collateral Dependent) [Member] | Fair Value, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3)
Available-for-sale: [Abstract]
Assets, Fair Value Disclosure	$ 9,514,000		$ 12,727,000

Fair Value of Assets and Liab_4

Fair Value of Assets and Liabilities, Part II (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage Servicing Rights (MSR) Impairment (Recovery)	$ 268,000
Foreclosed Assets Held for Sale [Abstract]
Other real estate owned	2,784,000		$ 3,644,000
Financial Assets [Abstract]
Available-for-sale securities	617,801,000		686,048,000
Debt Securities, Held-to-maturity	24,563,000		69,542,000
Debt Securities, Held-to-maturity, Fair Value	24,806,000		69,572,000
Operating lease right-of-use assets	16,542,000		17,006,000
Financial Liabilities [Abstract]
Operating lease liabilities	16,568,000		17,007,000
Carrying Amount [Member]
Financial Assets [Abstract]
Cash and due from banks	181,100,000		84,154,000
Federal funds sold	927,000		926,000
Certificates of deposit investments	4,380,000		4,625,000
Available-for-sale securities	617,801,000		686,048,000
Debt Securities, Held-to-maturity	24,563,000		69,542,000
Loans held for sale	1,251,000		1,820,000
Loans net of allowance for loan losses	2,710,171,000		2,666,616,000
Interest receivable	15,422,000		15,577,000
Federal Reserve Bank stock	9,401,000		9,401,000
Federal Home Loan Bank stock	5,450,000		4,105,000
Financial Liabilities [Abstract]
Deposits	2,908,627,000		2,917,366,000
Securities sold under agreements to repurchase	231,649,000		208,109,000
Interest payable	2,029,000		2,261,000
Federal Home Loan Bank borrowings	119,921,000		113,895,000
Other borrowings	5,000,000		5,000,000
Junior subordinated debentures	18,900,000		18,858,000
Fair Value [Member]
Financial Assets [Abstract]
Cash and due from banks	181,100,000		84,154,000
Federal funds sold	927,000		926,000
Certificates of deposit investments	4,380,000		4,625,000
Available-for-sale securities	617,801,000		686,048,000
Debt Securities, Held-to-maturity, Fair Value	24,806,000		69,572,000
Loans held for sale	1,251,000		1,820,000
Loans net of allowance for loan losses	2,627,881,000		2,622,053,000
Interest receivable	15,422,000		15,577,000
Federal Reserve Bank stock	9,401,000		9,401,000
Federal Home Loan Bank stock	5,450,000		4,105,000
Financial Liabilities [Abstract]
Deposits	2,920,736,000		2,924,144,000
Securities sold under agreements to repurchase	231,699,000		208,016,000
Interest payable	2,029,000		2,261,000
Federal Home Loan Bank borrowings	124,463,000		114,510,000
Other borrowings	5,000,000		5,000,000
Junior subordinated debentures	14,632,000		15,596,000
Fair Value, Nonrecurring [Member] | Carrying Amount [Member]
Foreclosed Assets Held for Sale [Abstract]
Other real estate owned	2,784,000
Fair Value, Nonrecurring [Member] | Fair Value [Member]
Foreclosed Assets Held for Sale [Abstract]
Other real estate owned	160,000
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets [Abstract]
Cash and due from banks	181,100,000		84,154,000
Federal funds sold	927,000		926,000
Available-for-sale securities	146,000		219,000
Debt Securities, Held-to-maturity, Fair Value	0		0
Loans held for sale	0		0
Loans net of allowance for loan losses	0		0
Interest receivable	0		0
Federal Reserve Bank stock	0		0
Federal Home Loan Bank stock	0		0
Financial Liabilities [Abstract]
Deposits	0		0
Securities sold under agreements to repurchase	0		0
Interest payable	0		0
Federal Home Loan Bank borrowings	0		0
Other borrowings	0		5,000,000
Junior subordinated debentures	0		0
Significant Other Observable Inputs (Level 2)
Financial Assets [Abstract]
Cash and due from banks	0		0
Federal funds sold	0		0
Certificates of deposit investments	4,380,000		4,625,000
Available-for-sale securities	616,865,000		684,856,000
Debt Securities, Held-to-maturity, Fair Value	24,806,000		69,572,000
Loans held for sale	1,251,000		1,820,000
Loans net of allowance for loan losses	0		0
Interest receivable	15,422,000		15,577,000
Federal Reserve Bank stock	9,401,000		9,401,000
Federal Home Loan Bank stock	5,450,000		4,105,000
Financial Liabilities [Abstract]
Deposits	2,353,150,000		2,332,866,000
Securities sold under agreements to repurchase	231,699,000		208,016,000
Interest payable	2,029,000		2,261,000
Federal Home Loan Bank borrowings	124,463,000		114,510,000
Other borrowings	5,000,000		0
Junior subordinated debentures	14,632,000		15,596,000
Significant Unobservable Inputs (Level 3)
Financial Assets [Abstract]
Cash and due from banks	0		0
Federal funds sold	0		0
Available-for-sale securities	790,000		973,000
Debt Securities, Held-to-maturity, Fair Value	0		0
Loans held for sale	0		0
Loans net of allowance for loan losses	2,627,881,000		2,622,053,000
Interest receivable	0		0
Federal Reserve Bank stock	0		0
Federal Home Loan Bank stock	0		0
Financial Liabilities [Abstract]
Deposits	567,586,000		591,278,000
Securities sold under agreements to repurchase	0		0
Interest payable	0		0
Federal Home Loan Bank borrowings	0		0
Other borrowings	0		0
Junior subordinated debentures	0		0
Impaired loans (collateral dependent) | Fair Value, Nonrecurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	9,514,000		12,727,000
Impaired loans (collateral dependent) | Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Nonrecurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	0		0
Impaired loans (collateral dependent) | Significant Other Observable Inputs (Level 2) | Fair Value, Nonrecurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 0		$ 0
Impaired loans (collateral dependent) | Significant Unobservable Inputs (Level 3) | Minimum [Member] | Third Party Valuations [Member]
Assets Measured On Recurring And Nonrecurring Basis Valuation Techniques [Abstract]
Discount to reflect realizable value	0.00%		0.00%
Impaired loans (collateral dependent) | Significant Unobservable Inputs (Level 3) | Maximum [Member] | Third Party Valuations [Member]
Assets Measured On Recurring And Nonrecurring Basis Valuation Techniques [Abstract]
Discount to reflect realizable value	40.00%		40.00%
Impaired loans (collateral dependent) | Significant Unobservable Inputs (Level 3) | Weighted Average [Member] | Third Party Valuations [Member]
Assets Measured On Recurring And Nonrecurring Basis Valuation Techniques [Abstract]
Discount to reflect realizable value	20.00%		20.00%
Impaired loans (collateral dependent) | Significant Unobservable Inputs (Level 3) | Fair Value, Nonrecurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 9,514,000		$ 12,727,000
Assets Held-for-sale [Member] | Fair Value, Nonrecurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	160,000		935,000
Assets Held-for-sale [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Nonrecurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	0		0
Assets Held-for-sale [Member] | Significant Other Observable Inputs (Level 2) | Fair Value, Nonrecurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 0		$ 0
Assets Held-for-sale [Member] | Significant Unobservable Inputs (Level 3) | Minimum [Member] | Third Party Valuations [Member]
Assets Measured On Recurring And Nonrecurring Basis Valuation Techniques [Abstract]
Discount to reflect realizable value less estimated selling costs (in hundredths)	0.00%		0.00%
Assets Held-for-sale [Member] | Significant Unobservable Inputs (Level 3) | Maximum [Member] | Third Party Valuations [Member]
Assets Measured On Recurring And Nonrecurring Basis Valuation Techniques [Abstract]
Discount to reflect realizable value less estimated selling costs (in hundredths)	40.00%		40.00%
Assets Held-for-sale [Member] | Significant Unobservable Inputs (Level 3) | Weighted Average [Member] | Third Party Valuations [Member]
Assets Measured On Recurring And Nonrecurring Basis Valuation Techniques [Abstract]
Discount to reflect realizable value less estimated selling costs (in hundredths)	35.00%		35.00%
Assets Held-for-sale [Member] | Significant Unobservable Inputs (Level 3) | Fair Value, Nonrecurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 160,000		$ 935,000
Mortgage Servicing Rights [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage Servicing Rights (MSR) Impairment (Recovery)	18,000	$ 0	(380,000)
Finite-Lived Intangible Assets, Net	1,296,000	$ 2,043,000	1,444,000	$ 2,101,000
Mortgage Servicing Rights [Member] | Fair Value, Nonrecurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Finite-Lived Intangible Assets, Net	1,296,000		1,444,000
Indefinite-Lived Contractual Rights	1,564,000
Mortgage Servicing Rights [Member] | Significant Other Observable Inputs (Level 2) | Fair Value, Nonrecurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Finite-Lived Intangible Assets, Net	$ 0		$ 0
Mortgage Servicing Rights [Member] | Significant Unobservable Inputs (Level 3) | Minimum [Member] | Third Party Valuations [Member]
Assets Measured On Recurring And Nonrecurring Basis Valuation Techniques [Abstract]
Discount to reflect realizable value	9.00%		9.50%
Mortgage Servicing Rights [Member] | Significant Unobservable Inputs (Level 3) | Maximum [Member] | Third Party Valuations [Member]
Assets Measured On Recurring And Nonrecurring Basis Valuation Techniques [Abstract]
Discount to reflect realizable value	11.00%		12.50%
Mortgage Servicing Rights [Member] | Significant Unobservable Inputs (Level 3) | Weighted Average [Member] | Third Party Valuations [Member]
Assets Measured On Recurring And Nonrecurring Basis Valuation Techniques [Abstract]
Discount to reflect realizable value	9.10%		9.70%

Leases Leases (Details)

Leases Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Cash Flow, Operating Activities, Lessee [Abstract]
Operating Lease, Payments	$ 677	$ 664
Leases, Operating [Abstract]
Operating lease right-of-use assets	16,542		$ 17,006
Operating lease liabilities	$ 16,568		$ 17,007
Weighted-average remaining lease term	7 years 1 month		7 years 3 months
Weighted-average discount rate	3.08%		3.07%
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	$ 2,476
Lessee, Operating Lease, Liability, Payments, Due Year Two	2,391
Lessee, Operating Lease, Liability, Payments, Due Year Three	2,099
Lessee, Operating Lease, Liability, Payments, Due Year Four	1,849
Lessee, Operating Lease, Liability, Payments, Due Year Five	1,407
Lessor, Operating Lease, Payments to be Received, Thereafter	9,085
Lessor, Operating Lease, Payments to be Received	19,307
Imputed Interest on Operating Leases	2,739
Lease, Cost [Abstract]
Operating lease cost	642	671
Short-term lease cost	46	23
Variable lease cost	169	224
Total lease cost	857	918
Income from subleases	(193)	(248)
Net lease cost	$ 664	$ 670

Derivatives Schedule of Derivat

Derivatives Schedule of Derivative Instruments (Details) - Fair Value Hedging [Member] - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative, Average Remaining Maturity	9 years 1 month	9 years 4 months
Derivative Liability, Notional Amount	$ 14,694	$ 14,748
Derivative Liability, Fair Value, Gross Liability	$ (1,709)	$ (325)

Derivatives Derivative Instrume

Derivatives Derivative Instruments, Gain (Loss) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)
Derivative Instruments, Gain (Loss) [Abstract]
Derivative, Gain (Loss) on Derivative, Net	$ (1,384)
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	$ 1,384

Derivatives Hedged Instrument (

Derivatives Hedged Instrument (Details) $ in Thousands	Mar. 31, 2020USD ($)
Hedged Instruments [Abstract]
Hedged Asset, Fair Value Hedge	$ 12,985
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	$ 1,709

Derivatives Non Hedge Instrumen

Derivatives Non Hedge Instruments (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Fair Value Hedging [Member]
Derivative [Line Items]
Derivative, Average Remaining Maturity	9 years 1 month	9 years 4 months
Derivative Liability, Notional Amount	$ 14,694	$ 14,748
Derivative Liability, Fair Value, Gross Liability	$ (1,709)	$ (325)
Other Assets [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Average Remaining Maturity	9 years 2 months
Derivative Liability, Notional Amount	$ 31,490
Derivative Liability, Fair Value, Gross Liability	$ 1,002
Other Liabilities [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Average Remaining Maturity	9 years 2 months
Derivative Liability, Notional Amount	$ 31,490
Derivative Liability, Fair Value, Gross Liability	$ (1,002)

Uncategorized Items - fmbh-2020

Label	Element	Value
AOCI Attributable to Parent [Member]
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	$ 8,360,000
Common Stock [Member]
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	71,152,000
Retained Earnings [Member]
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	165,950,000
Deferred Compensation, Share-based Payments [Member]
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	2,760,000
Treasury Stock, Common [Member]
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	(18,255,000)
Additional Paid-in Capital [Member]
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	295,925,000
Accounting Standards Update 2016-13 [Member] | AOCI Attributable to Parent [Member]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1	0
Accounting Standards Update 2016-13 [Member] | Common Stock [Member]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1	0
Accounting Standards Update 2016-13 [Member] | Retained Earnings [Member]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1	(717,000)
Accounting Standards Update 2016-13 [Member] | Deferred Compensation, Share-based Payments [Member]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1	0
Accounting Standards Update 2016-13 [Member] | Treasury Stock, Common [Member]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1	0
Accounting Standards Update 2016-13 [Member] | Additional Paid-in Capital [Member]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1	$ 0