MidWestOne Financial (MOFG) 10-K 10 Mar 22 2021 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Mar. 08, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-35968
Entity Registrant Name	MIDWESTONE FINANCIAL GROUP, INC.
Entity Incorporation, State or Country Code	IA
Entity Tax Identification Number	42-1206172
Entity Address, Address Line One	102 South Clinton Street
Entity Address, City or Town	Iowa City
Entity Address, State or Province	IA
Entity Address, Postal Zip Code	52240
City Area Code	319
Local Phone Number	356-5800
Title of 12(b) Security	Common Stock, $1.00 par value
Trading Symbol	MOFG
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 459.3
Entity Common Stock, Shares Outstanding		15,694,125
Documents Incorporated by Reference	Portions of the registrant’s Proxy Statement for the 2022 Annual Meeting of Shareholders of MidWest One Financial Group, Inc. to be held on April 28, 2022, to be filed within 120 days after December 31, 2021 are incorporated by reference into Part III of this Annual Report on Form 10-K to the extent indicated in such part.
Entity Central Index Key	0001412665
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2021
Audit Information [Abstract]
Auditor Name	RSM US LLP
Auditor Location	Des Moines, Iowa
Auditor Firm ID	49

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Cash and due from banks	$ 42,949	$ 65,078
Interest earning deposits in banks	160,881	17,409
Federal funds sold	0	172
Total cash and cash equivalents	203,830	82,659
Debt securities available for sale at fair value	2,288,110	1,657,381
Loans held for sale	12,917	59,956
Gross loans held for investment	3,252,194	3,496,790
Unearned income, net	(7,182)	(14,567)
Loans held for investment, net of unearned income	3,245,012	3,482,223
Allowance for credit losses	(48,700)	(55,500)
Total loans held for investment, net	3,196,312	3,426,723
Premises and equipment, net	83,492	86,401
Goodwill	62,477	62,477
Other intangible assets, net	19,885	25,242
Foreclosed assets, net	357	2,316
Other assets	157,748	153,493
Total assets	6,025,128	5,556,648
LIABILITIES AND SHAREHOLDERS' EQUITY
Noninterest bearing deposits	1,005,369	910,655
Interest bearing deposits	4,109,150	3,636,394
Total deposits	5,114,519	4,547,049
Short-term borrowings	181,368	230,789
Long-term debt	154,879	208,691
Other liabilities	46,887	54,869
Total liabilities	5,497,653	5,041,398
Commitments and contingencies (Note 18)
Shareholders' equity
Preferred stock, no par value; authorized 500,000 shares; no shares issued and outstanding	0	0
Common stock, $1.00 par value; authorized 30,000,000 shares; issued shares of 16,581,017 and 16,581,017; outstanding shares of 15,671,147 and 16,016,780	16,581	16,581
Additional paid-in capital	300,940	300,137
Retained earnings	243,365	188,191
Treasury stock at cost, 909,870 and 564,237 shares	(24,546)	(14,251)
Accumulated other comprehensive (loss) income	(8,865)	24,592
Total shareholders' equity	527,475	515,250
Total liabilities and shareholders' equity	$ 6,025,128	$ 5,556,648

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in shares)	500,000	500,000
Preferred stock, shares issued (in shares)	0	0
Preferred Stock, shares outstanding (in shares)		0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares issued (in shares)	16,581,017	16,581,017
Common stock, shares outstanding (in shares)	15,671,147	16,016,780
Treasury stock (in shares)	909,870	564,237

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest income
Loans, including fees	$ 141,036	$ 158,656	$ 163,163
Taxable investment securities	25,692	17,610	13,132
Tax-exempt investment securities	9,947	8,259	5,696
Other	91	262	450
Total interest income	176,766	184,787	182,441
Interest expense
Deposits	13,198	23,919	29,927
Short-term borrowings	551	914	1,847
Long-term debt	6,736	6,990	7,017
Total interest expense	20,485	31,823	38,791
Net interest income	156,281	152,964	143,650
Credit loss (benefit) expense	(7,336)	28,369	7,158
Net interest income after credit loss (benefit) expense	163,617	124,595	136,492
Noninterest income
Investment services and trust activities	11,675	9,632	8,040
Service charges and fees	6,259	6,178	7,452
Card revenue	7,015	5,719	5,594
Loan revenue	12,948	10,185	3,789
Bank-owned life insurance	2,162	2,226	1,877
Insurance commissions	0	0	734
Investment securities gains, net	242	184	90
Other	2,152	4,496	3,670
Total noninterest income	42,453	38,620	31,246
Noninterest expense
Compensation and employee benefits	69,937	66,397	65,660
Occupancy expense of premises, net	9,274	9,348	8,647
Equipment	7,816	7,865	7,717
Legal and professional	5,256	6,153	8,049
Data processing	5,216	5,362	4,579
Marketing	4,022	3,815	3,789
Amortization of intangibles	5,357	6,976	5,906
FDIC insurance	1,572	1,858	690
Communications	1,332	1,746	1,701
Foreclosed assets, net	233	150	580
Goodwill impairment	0	31,500	0
Other	6,577	8,723	10,217
Total noninterest expense	116,592	149,893	117,535
Income before income tax expense	89,478	13,322	50,203
Income tax expense	19,992	6,699	6,573
Net income	$ 69,486	$ 6,623	$ 43,630
Earnings per share:
Basic (in dollars per share)	$ 4.38	$ 0.41	$ 2.93
Diluted (in dollars per share)	$ 4.37	$ 0.41	$ 2.93

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 69,486	$ 6,623	$ 43,630
Unrealized (loss) gain from debt securities available for sale:
Unrealized net holding (loss) gain on debt securities available for sale arising during the period	(45,032)	27,546	13,663
Reclassification adjustment for net gains included in net income	(242)	(184)	(87)
Income tax benefit (expense)	11,817	(7,142)	(3,543)
Unrealized net (loss) gain on debt securities available for sale, net of reclassification adjustment	(33,457)	20,220	10,033
Unrealized loss from cash flow hedging instruments:
Unrealized net holding loss in cash flow hedging instruments arising during the period	0	(1,002)	0
Reclassification adjustment for net loss in cash flow hedging instruments included in income	0	1,002	0
Income tax benefit	0	0	0
Unrealized net loss on cash flow hedge instruments, net of reclassification adjustment	0	0	0
Other comprehensive (loss) income, net of tax	(33,457)	20,220	10,033
Comprehensive income	$ 36,029	$ 26,843	$ 53,663

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands		Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	AOCI Attributable to Parent	Adjustment	[1]	AdjustmentRetained Earnings	[1]
Beginning balance at Dec. 31, 2018		$ 357,067	$ 12,463	$ 187,813	$ 168,951	$ (6,499)	$ (5,661)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		43,630			43,630
Other comprehensive income (loss)		10,033					10,033
Issuance of common stock		113,354	4,118	109,236
Release/lapse of restriction on RSUs		(103)		(815)		712
Repurchase of common stock		(4,679)				(4,679)
Share-based compensation		1,156		1,156
Dividends paid on common stock		(11,476)			(11,476)
Ending balance at Dec. 31, 2019		$ 508,982	16,581	297,390	201,105	(10,466)	4,372	$ (5,362)		$ (5,362)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	[1]	Accounting Standards Update 2016-13 [Member]
Net income		$ 6,623			6,623
Other comprehensive income (loss)		20,220					20,220
Acquisition fair value finalization	[2]	2,355		2,355
Release/lapse of restriction on RSUs		(149)		(988)		839
Repurchase of common stock		(4,624)				(4,624)
Share-based compensation		1,380		1,380
Dividends paid on common stock		(14,175)			(14,175)
Ending balance at Dec. 31, 2020		515,250	16,581	300,137	188,191	(14,251)	24,592
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		69,486			69,486
Other comprehensive income (loss)		(33,457)					(33,457)
Release/lapse of restriction on RSUs		(121)		(1,350)	(30)	1,259
Repurchase of common stock		(11,554)				(11,554)
Share-based compensation		2,153		2,153
Dividends paid on common stock		(14,282)			(14,282)
Ending balance at Dec. 31, 2021		$ 527,475	$ 16,581	$ 300,940	$ 243,365	$ (24,546)	$ (8,865)
[1]	Reclassification pursuant to adoption of ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . See Note 1. Nature of Business and Significant Accounting Policies for additional information.
[2]	Relates to the finalization of the purchase accounting adjustments for the ATBancorp acquisition. This purchase accounting adjustment had a $2.06 million impact on goodwill, $296 thousand impact on deferred income taxes, with the offsetting impact being to additional paid-in capital. See Note 7. Goodwill and Intangible Assets for additional information.

Consolidated Statements of Sh_2

Consolidated Statements of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Release/lapse of restriction on RSUs (in shares)	49,907	34,032	31,354
Repurchase of common stock (in shares)	395,540	179,428	166,729
Dividends paid on common stock (in dollars per share)	$ 0.9000	$ 0.8800	$ 0.8100
Release/lapse of restriction on RSUs	$ (121)	$ (149)	$ (103)
ATBancorp
Goodwill purchase accounting adjustment		2,060
Deferred income taxes accounting adjustments		296
Common Stock
Issuance of common stock due to business combination (in shares)			4,117,536
Additional Paid-in Capital
Expenses incurred in stock issuance			$ 323
Stock issued liquidity discount			2,355
Release/lapse of restriction on RSUs	$ (1,350)	$ (988)	$ (815)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income	$ 14,256	$ 16,710	$ 69,486	$ 6,623	$ 43,630
Adjustments to reconcile net income to net cash provided by operating activities:
Credit loss (benefit) expense	622	(3,041)	(7,336)	28,369	7,158
Goodwill impairment			0	31,500	0
Depreciation, amortization, and accretion			1,566	4,555	2,751
Net change in premises and equipment due to writedown or sale			271	274	119
Share-based compensation			2,153	1,380	1,156
Net gain on sale or call of debt securities available for sale			(242)	(157)	(87)
Net gain on call of debt securities held to maturity			0	0	(3)
Net change in foreclosed assets due to writedown or sale			155	66	257
Net gain on sale of loans held for sale			(8,052)	(8,872)	(2,297)
Origination and participations purchased of loans held for sale			(293,235)	(438,215)	(115,694)
Proceeds from sales of loans held for sale			348,326	392,531	114,605
Gain on sale of assets of MidWestOne Insurance Services, Inc.			0	0	(1,076)
Increase in cash surrender value of bank-owned life insurance			(1,889)	(2,117)	(1,877)
Decrease (increase) in deferred income taxes, net			1,769	(5,225)	2,708
Change in:
Other assets			6,614	(5,065)	1,917
Other liabilities			(8,032)	3,512	(5,953)
Net cash provided by operating activities			111,554	9,159	47,314
Cash flows from investing activities
Proceeds from sales of debt securities available for sale			52,183	27,391	125,452
Proceeds from maturities and calls of debt securities available for sale			404,894	267,427	91,256
Purchases of debt securities available for sale			(1,137,996)	(1,139,747)	(289,743)
Proceeds from sales of debt securities held to maturity			0	0	1,381
Proceeds from maturities and calls of debt securities held to maturity			0	0	7,008
Net decrease (increase) in loans held for investment			251,856	(24,249)	88,960
Purchases of premises and equipment			(2,014)	(2,128)	(2,186)
Proceeds from sale of foreclosed assets			2,117	2,927	2,071
Proceeds from sale of premises and equipment			642	679	56
Proceeds of principal and earnings from bank-owned life insurance			0	259	0
Proceeds from sale of assets of MidWestOne Insurance Services, Inc.			0	0	1,175
Net cash acquired in business acquisition			0	0	47,315
Net cash (used in) provided by investing activities			(428,318)	(867,441)	72,745
Cash flows from financing activities:
Deposits			567,302	818,046	25,723
Short-term borrowings			(49,421)	91,440	(92,834)
Proceeds from issuance of subordinated debt			0	65,000	0
Payments of subordinated debt issuance costs			(9)	(1,303)	0
Redemption of subordinated debentures			(10,835)	0	0
Payments on finance lease liability			(145)	(128)	(113)
Proceeds from Federal Home Loan Bank borrowings			0	0	25,000
Payments of Federal Home Loan Bank borrowings			(43,000)	(54,400)	(58,000)
Proceeds from other long-term debt			0	0	35,000
Payments of other long-term debt			0	(32,250)	(10,250)
Taxes paid relating to the release/lapse of restriction on RSUs			(121)	(149)	(103)
Dividends paid			(14,282)	(14,175)	(11,476)
Payment of stock issuance costs			0	0	(323)
Repurchase of common stock			(11,554)	(4,624)	(4,679)
Net cash provided by (used in) financing activities			437,935	867,457	(92,055)
Net increase in cash and cash equivalents			121,171	9,175	28,004
Cash and cash equivalents:
Beginning balance			82,659	73,484	45,480
Ending balance	203,830	82,659	203,830	82,659	73,484
Supplemental disclosures of cash flow information:
Cash paid during the period for interest			21,451	31,558	34,089
Cash paid during the period for income taxes			17,985	10,545	7,269
Supplemental schedule of non-cash investing and financing activities:
Transfer of loans to foreclosed assets			313	1,603	2,408
Investment securities purchased but not settled			2,480	2,330	0
Transfer of premises and equipment to assets held for sale			0	1,329	580
Transfer from debt securities held to maturity to available for sale			0	0	186,447
Initial recognition of operating lease right of use asset	2,840	3,613	2,840	3,613
Initial recognition of operating lease liability	3,778	4,583	3,778	4,583
Transfer due to adoption of ASU 2016-03, reclassified from Retained Earnings to Allowance for Credit Losses			0	5,362	0
Noncash assets acquired:
Goodwill	62,477	62,477	62,477	62,477	91,918
Accounting Standards Update 2016-02
Supplemental schedule of non-cash investing and financing activities:
Initial recognition of operating lease right of use asset	0	0	0	0	2,892
Initial recognition of operating lease liability	0	0	0	0	2,892
ATBancorp
Noncash assets acquired:
Debt securities available for sale	0	0	0	0	99,056
Loans	0	0	0	0	1,138,928
Premises and equipment	0	0	0	0	18,327
Goodwill	0	0	0	0	27,264
Bank-owned life insurance	0	0	0	0	18,759
Foreclosed assets	0	0	0	0	3,091
Other assets	0	0	0	0	23,889
Total noncash assets acquired			0	0	1,357,663
Liabilities assumed:
Deposits	0	0	0	0	1,089,355
Short-term borrowings	0	0	0	0	100,761
FHLB borrowings	0	0	0	0	42,770
Junior subordinated notes issued to capital trusts	0	0	0	0	17,555
Subordinated debentures	0	0	0	0	10,909
Other liabilities	0	0	0	0	29,951
Total liabilities assumed			0	0	1,291,301
Core deposit intangible | ATBancorp
Noncash assets acquired:
Core deposit intangible	0	0	0	0	23,539
Trust customer intangible | ATBancorp
Noncash assets acquired:
Core deposit intangible	$ 0	$ 0	$ 0	$ 0	$ 4,810

Nature of Business and Signific

Nature of Business and Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business and Significant Accounting Policies	Nature of Business and Significant Accounting Policies Nature of business : MidWest One Financial Group, Inc. (the “Company”), an Iowa Corporation formed in 1983, is a bank holding company under the BHCA and a financial holding company under the GLBA. It is headquartered in Iowa City, Iowa and owns all of the outstanding common stock of MidWest One Bank (the “Bank”), Iowa City, Iowa, and, until its dissolution in December 2019, all of the common stock of MidWest One Insurance Services, Inc., Oskaloosa, Iowa. The Bank is also headquartered in Iowa City, Iowa, and provides services to individuals, businesses, governmental units and institutional customers through a total of 56 banking offices in central and eastern Iowa, the Minneapolis/St. Paul metropolitan area in Minnesota, western and southwestern Wisconsin, Naples and Fort Myers, Florida, and Denver, Colorado. Prior to the sale of its assets in June 2019, MidWest One Insurance Services, Inc. provided personal and business insurance services in Cedar Falls, Conrad, Melbourne, Oskaloosa, Parkersburg, and Pella, Iowa. The Bank is actively engaged in many areas of commercial banking, including: acceptance of demand, savings and time deposits; making commercial, real estate, agricultural and consumer loans, and other banking services tailored for its individual customers. The wealth management area of the Bank administers estates, personal trusts, and conservatorship accounts along with providing other management services to customers. On May 1, 2019, the Company acquired ATBancorp, a bank holding company whose wholly-owned banking subsidiaries were ATSB and ABTW, community banks headquartered in Dubuque, Iowa, and Cuba City, Wisconsin, respectively. The primary reasons for the acquisition were to expand the Company’s business into new markets and grow the size of the Company’s business. As consideration for the merger, we issued 4,117,536 shares of our common stock with a value of $116.0 million and paid cash in the amount of $34.8 million. On June 30, 2019, the Company sold substantially all of the assets used by its wholly owned insurance subsidiary, MidWest One Insurance Services, Inc., to sell insurance products. The Company recognized a pre-tax gain of $1.1 million from the sale, which was reported in “Other” noninterest income on the Company’s consolidated statements of income. Effective December 31, 2019, MidWest One Insurance Services, Inc. was legally dissolved. Risks and Uncertainties: The extent to which COVID-19 will continue to affect business operations, financial condition, credit quality, and results of operations will depend on future developments that cannot be predicted, including the duration and scope of the pandemic. The direct or indirect impact on employees, customers, counterparties, and service providers, as well as other market participants, is likely to continue through 2022 as the world attempts to gain control over the virus and emerging variants. Accounting estimates : The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect: (1) the reported amount of assets and liabilities, (2) the disclosure of contingent assets and liabilities at the date of the financial statements, and (3) the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Certain significant estimates : The allowance for credit losses, fair value of assets acquired and liabilities assumed in a business combination, and the annual impairment testing of goodwill and other intangible assets involve certain significant estimates made by management. These estimates are reviewed by management routinely, and it is reasonably possible that circumstances that exist may change in the near-term future and that the effect could be material to the consolidated financial statements. Principles of consolidation : The consolidated financial statements include the accounts of MidWest One Financial Group, Inc., a bank holding company, and its wholly-owned subsidiary MidWest One Bank, which is a state chartered bank whose primary federal regulator is the FDIC, and MidWest One Insurance Services, Inc, until the sale of substantially all of its assets on June 30, 2019 and subsequent dissolution effective December 31, 2019. All significant inter-company accounts and transactions have been eliminated in consolidation. Certain reclassifications have been made to prior periods’ consolidated financial statements to present them on a basis comparable with the current period’s consolidated financial statements. Trust assets, other than cash deposits held by the Bank in a fiduciary or agency capacity for its customers, are not included in the accompanying consolidated financial statements because such accounts are not assets of the Bank. Presentation of cash flows : For purposes of reporting cash flows, cash and due from banks includes cash on hand, amounts due from banks, and federal funds sold. Cash flows from loans, deposits, and short-term borrowings are reported net. Cash receipts and cash payments resulting from originations and sales of loans held for sale are classified as operating cash flows on a gross basis in the consolidated statements of cash flows. The nature of the Company’s business requires that it maintain amounts due from banks that, at times, may exceed federally insured limits. In the opinion of management, no material risk of loss exists due to the various correspondent banks’ financial condition and the fact that they are well capitalized. Investment securities : Debt securities that the Company has the positive intent and ability to hold to maturity are classified as held to maturity and recorded at amortized cost. As of December 31, 2021 and December 31, 2020, the Company held no debt securities classified as held to maturity. Debt securities not classified as held to maturity are classified as available for sale and recorded at fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income. The Company employs valuation techniques that utilize observable inputs when those inputs are available. These observable inputs reflect assumptions market participants would use in pricing the security, developed based on market data obtained from sources independent of the Company. When such information is not available, the Company employs valuation techniques which utilize unobservable inputs, or those which reflect the Company’s own assumptions about assumptions that market participants would use, based on the best information available in the circumstances. These valuation methods typically involve cash flow and other financial modeling techniques. Changes in underlying factors, assumptions, estimates, or other inputs to the valuation techniques could have a material impact on the Company’s future financial condition and results of operations. Fair value measurements are required to be classified as Level 1 (quoted prices), Level 2 (based on observable inputs) or Level 3 (based on unobservable inputs) discussed in more detail in Note 20. Estimated Fair Value of Financial Instruments and Fair Value Measurements to the consolidated financial statements. Available for sale debt securities are recorded at fair value. Realized gain or losses on sales of available for sale debt securities are included in earnings. Available for sale debt securities with unrealized gains are excluded from earnings and included in other comprehensive income as a separate component of shareholders’ equity, net of tax. When the fair value of an available for sale debt security falls below the amortized cost basis, it is evaluated to determine if any of the decline in value is attributable to credit loss. Decreases in fair value attributable to credit loss would be recorded directly to earnings with a corresponding allowance for credit losses, limited by the amount that the fair value is less than the amortized cost basis. If the credit quality subsequently improves the allowance would be reversed up to a maximum of the previously recorded credit losses. If the Company intends to sell an impaired available for sale debt security, or if it is more likely than not that the Company will be required to sell the security prior to recovering the amortized cost basis, the entire fair value adjustment would be immediately recognized in earnings with no corresponding allowance for credit losses. Accrued interest receivable is excluded from the estimate of credit losses. Purchase premiums and discounts are recognized in interest income using the interest method between the date of purchase and the first call date, or the maturity date of the security when there is no call date. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method. Loans : Loans are stated at the principal amount outstanding, net of purchase premiums, purchase discounts and net deferred loan fees. Net deferred loan fees include nonrefundable loan origination fees less direct loan origination costs. Net deferred loan fees, purchase premiums and purchase discounts are amortized into interest income using either the interest method or straight-line method over the terms of the loans, adjusted for actual prepayments. The interest method is used for all loans except revolving loans, for which the straight-line method is used. Interest on loans is credited to income as earned based on the principal amount outstanding. The accrual of interest on agricultural, commercial, commercial real estate, and consumer loan segments is discontinued at the time the loan is 90 days past due, and residential real estate loan segments at 120 days past due, unless the credit is well secured and in process of collection. Credit card loans and other personal loans are typically charged off no later than 180 days past due. Past due status is based on contractual terms of the loan. In all cases, loans are placed on nonaccrual or charged off at an earlier date, if collection of principal or interest is considered doubtful. All interest accrued but not collected for loans that are placed on nonaccrual or charged off is reversed against interest income. The interest on these loans is accounted for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. The Company requires a loan to be charged-off, in whole or in part, as soon as it becomes apparent that some loss will be incurred, or when its collectability is sufficiently questionable that it no longer is considered a bankable asset. The primary considerations when determining if and how much of a loan should be charged-off are as follows: (1) the potential for future cash flows; (2) the value of any collateral; and (3) the strength of any co-makers or guarantors. The risk characteristics of each loan portfolio segment are as follows: Agricultural - Agricultural loans, most of which are secured by crops, livestock, and machinery, are provided to finance capital improvements and farm operations as well as acquisitions of livestock and machinery. The ability of the borrower to repay may be affected by many factors outside of the borrower’s control including adverse weather conditions, loss of livestock due to disease or other factors, declines in market prices for agricultural products and the impact of government regulations. The ultimate repayment of agricultural loans is dependent upon the profitable operation or management of the agricultural entity. Collateral for these loans generally includes accounts receivable, inventory, equipment and real estate. However, depending on the overall financial condition of the borrower, some loans are made on an unsecured basis. The collateral securing these loans may depreciate over time, may be difficult to appraise and may fluctuate in value based on the success of the business. Commercial and Industrial - Commercial and industrial loans are primarily made based on the reported cash flow of the borrower and secondarily on the underlying collateral provided by the borrower. The collateral support provided by the borrower for most of these loans and the probability of repayment are based on the liquidation of the pledged collateral and enforcement of a personal guarantee, if any exists. The primary repayment risks of commercial and industrial loans are that the cash flows of the borrower may be unpredictable, and the collateral securing these loans may fluctuate in value. The size of the loans the Company can offer to commercial customers is less than the size of the loans that competitors with larger lending limits can offer. This may limit the Company’s ability to establish relationships with the largest businesses in the areas in which the Company operates. As a result, the Company may assume greater lending risks than financial institutions that have a lesser concentration of such loans and tend to make loans to larger businesses. Collateral for these loans generally includes accounts receivable, inventory, equipment and real estate. However, depending on the overall financial condition of the borrower, some loans are made on an unsecured basis. The collateral securing these loans may depreciate over time, may be difficult to appraise and may fluctuate in value based on the success of the business. In addition, a decline in the U.S. economy could harm or continue to harm the businesses of the Company’s commercial and industrial customers and reduce the value of the collateral securing these loans. Commercial Real Estate - The Company offers mortgage loans to commercial and agricultural customers for the acquisition of real estate used in their businesses, such as offices, warehouses and production facilities, and to real estate investors for the acquisition of apartment buildings, retail centers, office buildings and other commercial buildings. The market value of real estate securing commercial real estate loans can fluctuate significantly in a short period of time as a result of market conditions in the geographic area in which the real estate is located. Adverse developments affecting real estate values in one or more of the Company’s markets could increase the credit risk associated with its loan portfolio. Additionally, real estate lending typically involves higher loan principal amounts than other loans, and the repayment of the loans generally is dependent, in large part, on sufficient income from the properties securing the loans to cover operating expenses and debt service. Economic events or governmental regulations outside of the Company’s control or that of the borrower could negatively impact the future cash flow and market values of the affected properties. Residential Real Estate - The Company generally retains short-term residential mortgage loans that are originated for its own portfolio but sells most long-term loans to other parties while retaining servicing rights on the majority of those loans. The market value of real estate securing residential real estate loans can fluctuate as a result of market conditions in the geographic area in which the real estate is located. Adverse developments affecting real estate values in one or more of the Company’s markets could increase the credit risk associated with its loan portfolio. Additionally, real estate lending typically involves higher loan principal amounts than other loans, and the repayment of the loans generally is dependent, in large part, on the borrower’s continuing financial stability, and is therefore more likely to be affected by adverse personal circumstances. Consumer - Consumer loans typically have shorter terms, lower balances, higher yields and higher risks of default than real estate-related loans. Consumer loan collections are dependent on the borrower’s continuing financial stability, and are therefore more likely to be affected by adverse personal circumstances. Collateral for these loans generally includes automobiles, boats, recreational vehicles, mobile homes, and real estate. However, depending on the overall financial condition of the borrower, some loans are made on an unsecured basis. The collateral securing these loans may depreciate over time, may be difficult to recover and may fluctuate in value based on condition. In addition, a decline in the United States economy could result in reduced employment, impacting the ability of customers to repay their obligations. TDR : TDRs exist when the Company, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession (either imposed by court order, law, or agreement between the borrower and the Company) to the borrower that it would not otherwise consider. The Company attempts to maximize its recovery of the balances of the loans through these various concessionary restructurings. All loans deemed TDR are considered impaired. The following factors are potential indicators that a concession has been granted (one or multiple items may be present): • The borrower receives a reduction of the stated interest rate for the remaining original life of the debt. • The borrower receives an extension of the maturity date or dates at a stated interest rate lower than the current market interest rate for new debt with similar risk characteristics. • The borrower receives a reduction of the face amount or maturity amount of the debt as stated in the instrument or other agreement. • The borrower receives a deferral of required payments (principal and/or interest). • The borrower receives a reduction of the accrued interest. Guidance on Non-TDR Loan Modifications due to COVID-19 : Section 4013 of the CARES Act, “Temporary Relief From Troubled Debt Restructurings,” as extended by the CAA, allowed financial institutions the option to temporarily suspend certain requirements under GAAP related to TDRs for a limited period of time during the COVID-19 pandemic. Under Section 4013 of the CARES Act, loan modifications that qualified for such suspension were those where the borrower was not more than 30 days past due as of December 31, 2019. In addition, the loan modification that was made in response to the COVID-19 pandemic had to include a deferral or delay in the payment of principal or interest, or change in the interest rate on the loan. In March 2020, various regulatory agencies, including the FRB and the FDIC, issued an interagency statement that was effective immediately, on loan modifications and reporting for financial institutions that worked with customers affected by COVID-19. The agencies confirmed with the staff of the FASB that short-term modifications that were made on a good faith basis in response to COVID-19 to borrowers who were current prior to any relief, were not to be considered TDRs. This included short-term (e.g., six months) modifications, such as payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment that were insignificant. Borrowers considered current were those that were less than 30 days past due on their contractual payments at the time a modification program was implemented. The relief related to TDRs was extended by the CAA, which was signed into law on December 27, 2020. As part of the CAA, relief continued until the earlier of 60 days after the date the COVID-19 national emergency came to an end or January 1, 2022. This program has since ended and no additional deferrals are being granted on loans. Loans held for sale : Loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or estimated fair value, as determined by aggregate outstanding commitments from investors or current investor yield requirements. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. As of December 31, 2021, loans held for sale were $12.9 million. Mortgage loans held for sale are generally sold with the mortgage servicing rights retained. Gains or losses on sales of mortgage loans are recognized based on the difference between the selling price plus the value of servicing rights, less the carrying value of the related mortgage loans sold. On December 1, 2020 the Company entered into a master participation arrangement with another bank (“seller”), that is in the business of originating qualifying, single-family mortgage loans. As part of this master participation arrangement, we agreed to provide up to $50 million in funding to the seller in order to receive our participation share of the principal and interest, less any fees paid to the seller for their service of each loan. Allowance for credit losses related to loans held for investment: Under the current expected credit loss model, the allowance for credit losses is a valuation account estimated at each balance sheet date and deducted from the amortized cost basis of loans held for investment to present the net amount expected to be collected. The Company estimates the ACL based on the underlying assets’ amortized cost basis, which is the amount at which the financing receivable is originated or acquired, adjusted for collection of cash and charge-offs, as well as applicable accretion or amortization of premium, discount, and net deferred fees or costs. In the event that collection of principal becomes uncertain, the Company has policies in place to reverse accrued interest in a timely manner. Therefore, the Company has made a policy election to exclude accrued interest from the measurement of ACL. Expected credit losses are reflected in the allowance for credit losses through a charge to credit loss expense. When the Company deems all or a portion of a financial asset to be uncollectible, the appropriate amount is written off and the ACL is reduced by the same amount. The Company applies judgment to determine when a financial asset is deemed uncollectible; however, generally speaking, an asset will be considered uncollectible no later than when all efforts at collection have been exhausted. Subsequent recoveries, if any, are credited to the ACL when received. The Company measures expected credit losses of financial assets on a collective (pool) basis when the financial assets share similar risk characteristics. Depending on the nature of the pool of financial assets with similar risk characteristics, the Company uses a DCF method or a loss-rate method to estimate expected credit losses. The Company’s methodologies for estimating the ACL consider available relevant information about the collectability of cash flows, including information about past events, current conditions, and reasonable and supportable forecasts. The methodologies apply historical loss information, adjusted for asset-specific characteristics, economic conditions at the measurement date, and forecasts about future economic conditions expected to exist through the contractual lives of the financial assets that are reasonable and supportable, to the identified pools of financial assets with similar risk characteristics for which the historical loss experience was observed. The Company’s economic forecast assumptions revert over four quarters to historical loss driver information on a straight-line basis after four quarters. Discounted Cash Flow Method The Company uses the DCF method to estimate expected credit losses for the agricultural, commercial and industrial, CRE - construction and development, CRE - farmland, CRE - multifamily, CRE - other, RRE - owner-occupied one-to-four family first liens, RRE - nonowner-occupied one-to-four family first liens, RRE - one-to-four family junior liens, and consumer loan pools. For each of these pools, the Company generates cash flow projections at the instrument level wherein payment expectations are adjusted for estimated prepayment speed, curtailments, time to recovery, probability of default, and loss given default. The modeling of expected prepayment speeds, curtailment rates, and time to recovery are based on historical internal data. The Company uses regression analysis of historical internal and peer data to determine which variables are best suited to be economic variables utilized when modeling lifetime probability of default and loss given default. This analysis also determines how expected probability of default and loss given default will react to forecasted levels of the economic variables. For the loan pools utilizing the DCF method, management utilizes one or multiple of the following economic variables: Midwest unemployment, national retail sales, CRE index, US rental vacancy rate, US gross domestic product, and HPI. For all DCF models, management has determined that four quarters represents a reasonable and supportable forecast period and reverts back to a historical loss rate over four quarters on a straight-line basis. Management leverages economic projections from a reputable and independent third party to inform its loss driver forecasts over the four quarter forecast period. Other internal and external indicators of economic forecasts are also considered by management when developing the forecast metrics. The combination of adjustments for credit expectations (default and loss) and timing expectations (prepayment, curtailment, and time to recovery) produces an expected cash flow stream at the instrument level. Instrument effective yield is calculated, net of the impacts of prepayment assumptions, and the instrument expected cash flows are then discounted at that effective yield to produce an instrument-level net present value of expected cash flows (“NPV”). An ACL is established for the difference between the instrument’s NPV and amortized cost basis. In addition, management utilizes qualitative factors to adjust the calculated ACL as appropriate. Qualitative factors are based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions. Loss-Rate Method The Company uses a loss-rate method to estimate expected credit losses for the credit card and overdraft pools. For each of these pools, the Company applies an expected loss ratio based on internal and peer historical losses, adjusted as appropriate for qualitative factors. Qualitative loss factors are based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions. Collateral Dependent Financial Assets Loans that do not share risk characteristics are evaluated on an individual basis. For collateral dependent financial assets where the Company has determined that foreclosure of the collateral is probable, or where the borrower is experiencing financial difficulty and the Company expects repayment of the financial asset to be provided substantially through the operation or sale of the collateral, the ACL is measured based on the difference between the fair value of the collateral and the amortized cost basis of the asset as of the measurement date. When repayment is expected to be from the operation of the collateral, expected credit losses are calculated as the amount by which the amortized cost basis of the financial asset exceeds the present value of expected cash flows from the operation of the collateral. When repayment is expected to be from the sale of the collateral, expected credit losses are calculated as the amount by which the amortized cost basis of the financial asset exceeds the fair value of the underlying collateral less estimated cost to sell. The ACL may be zero if the fair value of the collateral at the measurement date exceeds the amortized cost basis of the financial asset. The Company’s estimate of the ACL reflects losses expected over the contractual life of the assets, adjusted for estimated prepayments or curtailments. The contractual term does not consider extensions, renewals or modifications unless the Company has identified an expected TDR. A loan that has been modified or renewed is considered a TDR when two conditions are met: 1) the borrower is experiencing financial difficulty and 2) concessions are made for the borrower's benefit that would not otherwise be considered for a borrower or transaction with similar credit risk characteristics. The Company’s ACL reflects all effects of a TDR when an individual asset is specifically identified as a reasonably expected TDR. The Company has determined that a TDR is reasonably expected no later than the point when the lender concludes that modification is the best course of action and it is at least reasonably possible that the troubled borrower will accept some form of concession from the lender to avoid a default. Reasonably expected TDRs and executed non-performing TDRs are evaluated individually to determine the required ACL. TDRs performing in accordance with their modified contractual terms for a reasonable period of time may be included in the Company’s existing pools based on the underlying risk characteristics of the loan to measure the ACL. Liability for Off-Balance Sheet Credit Losses: Financial instruments include off-balance sheet credit losses, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for off-balance sheet loan commitments is represented by the contractual amount of those instruments. Such financial instruments are recorded when they are funded. The Company recognizes a liability for off-balance sheet credit losses through a charge to credit loss expense for off-balance sheet credit losses, which is included in credit loss expense in the Company’s consolidated statements of income, unless the commitments to extend credit are unconditionally cancellable. The liability for off-balance sheet credit losses is estimated by loan segment at each balance sheet date under the current expected credit loss model using the same methodologies as portfolio loans, taking into consideration the likelihood that funding will occur, and is included in other liabilities on the Company’s consolidated balance sheets. Transfers of financial assets : Revenue from the origination and sale of loans in the secondary market is recognized upon the transfer of financial assets and accounted for as sales when control over the assets has been surrendered. The Company also sells participation interests in some large loans originated to non-affiliated entities. Control over transferred assets is deemed to be surrendered when: (1) the assets have been isolated from the Company; (2) the transferee has the right to pledge or exchange the assets it received and no condition both constrains the transferee from taking advantage of its right to pledge or exchange and provides more than a trivial benefit to the transferor; and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity or the ability to unilaterally cause the holder to return specific assets. Credit-related financial instruments : In the ordinary course of business, the Company has entered into commitments to extend credit, including commitments under credit card arrangements, commitments to sell loans, commercial letters of credit and standby letters of credit. Such financial instruments are recorded when they are funded. Derivatives and hedging instruments : As part of its asset and liability management strategy, the Company uses derivative financial instruments to mitigate exposure to interest rate risks. The Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an as

Business Combinations

Business Combinations	12 Months Ended
	Dec. 31, 2021
Business Combination and Asset Acquisition [Abstract]
Business Combinations	Business Combinations ATBancorp On May 1, 2019, the Company acquired 100% of the equity of ATBancorp through a merger and acquired its wholly-owned banking subsidiaries ATSB and ABTW. The consideration included common stock valued at $116.0 million and cash consideration of $34.8 million. The assets acquired and liabilities assumed have been accounted for under the acquisition method of accounting. The assets and liabilities, both tangible and intangible, were recorded at their fair values as of the May 1, 2019 acquisition date net of any applicable tax effects. During 2020, as part of the finalization of purchase accounting associated with the merger, an additional $2.06 million was recorded to goodwill, $296 thousand was recorded to deferred income taxes, with the offsetting impact being to additional paid-in capital. Acquisition-related Expenses The following table summarizes Iowa First Bancshares Corp. and ATBancorp acquisition-related expenses incurred in the years ended December 31, 2021 and December 31, 2020, respectively: Years Ended December 31, (in thousands) 2021 2020 2019 Noninterest Expense Compensation and employee benefits $ — $ — $ 5,435 Occupancy expense of premises, net — 7 117 Equipment 18 — 366 Legal and professional 202 — 2,762 Data processing — 44 90 Other 4 10 360 Total acquisition-related expenses $ 224 $ 61 $ 9,130

Debt Securities

Debt Securities	12 Months Ended
	Dec. 31, 2021
Debt Securities [Abstract]
Debt Securities	Debt Securities The amortized cost and fair value of investment debt securities AFS, with gross unrealized gains and losses, were as follows: As of December 31, 2021 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Allowance for Credit Loss related to Debt Securities Fair Value (in thousands) U.S. Government agencies and corporations $ 265 $ 1 $ — $ — $ 266 State and political subdivisions 760,894 10,484 5,636 — 765,742 Mortgage-backed securities 100,325 932 631 — 100,626 Collateralized mortgage obligations 785,945 1,274 18,320 — 768,899 Corporate debt securities 652,677 6,305 6,405 — 652,577 Total debt securities $ 2,300,106 $ 18,996 $ 30,992 $ — $ 2,288,110 As of December 31, 2020 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Allowance for Credit Loss related to Debt Securities Fair Value (in thousands) U.S. Government agencies and corporations $ 355 $ 6 $ — $ — $ 361 State and political subdivisions 611,666 17,163 483 — 628,346 Mortgage-backed securities 92,261 1,758 1 — 94,018 Collateralized mortgage obligations 559,718 6,332 214 — 565,836 Corporate debt securities 360,103 9,333 616 — 368,820 Total debt securities $ 1,624,103 $ 34,592 $ 1,314 $ — $ 1,657,381 Investment securities with a carrying value of $582.2 million and $434.7 million at December 31, 2021 and December 31, 2020, respectively, were pledged against public deposits, securities sold under agreements to repurchase and for other purposes, as required or permitted by law. The following table presents debt securities AFS in an unrealized loss position for which an allowance for credit losses has not been recorded at December 31, 2021, aggregated by investment category and length of time in a continuous loss position: As of December 31, 2021 Number Less than 12 Months 12 Months or More Total Available for Sale Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses (in thousands, except number of securities) State and political subdivisions 136 $ 311,960 $ 5,216 $ 15,343 $ 420 $ 327,303 $ 5,636 Mortgage-backed securities 6 43,319 631 80 — 43,399 631 Collateralized mortgage obligations 44 605,729 15,693 61,984 2,627 667,713 18,320 Corporate debt securities 52 303,750 4,567 27,071 1,838 330,821 6,405 Total 238 $ 1,264,758 $ 26,107 $ 104,478 $ 4,885 $ 1,369,236 $ 30,992 As of December 31, 2021, 136 state and political subdivisions securities with total unrealized losses of $5.6 million were held by the Company. Management evaluated these securities through a process that included consideration of credit agency ratings, payment history, yield spreads to treasury securities, and in some instances, the most recent financial information available. Based on this evaluation, management concluded that the decline in fair value was not attributable to credit losses. As of December 31, 2021, 6 mortgage-backed securities and 44 collateralized mortgage obligations with unrealized losses totaling $19.0 million were held by the Company. Management considered the implied U.S. government guarantee of the agency securities and the level of credit enhancement for non-agency securities. Based on this evaluation, management concluded that the decline in fair value was not attributable to credit losses. As of December 31, 2021, 52 corporate debt securities with total unrealized losses of $6.4 million were held by the Company. Management evaluated these securities by considering credit agency ratings, payment history, the yield spreads to treasury securities, and in some instances, the most recent financial information available. Based on this evaluation, management concluded that the decline in fair value was not attributable to credit losses. Accrued interest receivable on available for sale debt securities, which is recorded within 'Other Assets,' totaled $9.5 million at December 31, 2021 and $7.3 million at December 31, 2020 and is excluded from the estimate of credit losses. The following table presents debt securities AFS in an unrealized loss position for which an allowance for credit losses has not been recorded at December 31, 2020, aggregated by investment category and length of time in a continuous loss position. As of December 31, 2020 Number Less than 12 Months 12 Months or More Total Available for Sale Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses (in thousands, except number of securities) State and political subdivisions 27 $ 31,489 $ 157 $ 4,065 $ 326 $ 35,554 $ 483 Mortgage-backed securities 7 315 1 — — 315 1 Collateralized mortgage obligations 8 133,032 214 — — 133,032 214 Corporate debt securities 15 35,995 523 3,311 93 39,306 616 Total 57 $ 200,831 $ 895 $ 7,376 $ 419 $ 208,207 $ 1,314 Proceeds and gross realized gains and losses on debt securities available for sale for the years ended December 31, 2021, 2020 and 2019, were as follows: Year Ended December 31, (in thousands) 2021 2020 2019 Proceeds from sales of debt securities available for sale $ 52,183 $ 27,391 $ 125,452 Gross realized gains from sales of debt securities available for sale $ 940 $ 280 $ 143 Gross realized losses from sales of debt securities available for sale (791) (123) (56) Net realized gain from sales of debt securities available for sale (1) $ 149 $ 157 $ 87 (1) The difference in investment security gains, net reported herein as compared to the Consolidated Statements of Income is associated with the net realized gain from the call or maturity of debt securities of $93 thousand, $27 thousand and $3 thousand for the years ended December 31, 2021, 2020, and 2019, respectively. The contractual maturity distribution of investment debt securities at December 31, 2021, is shown below. Expected maturities of MBS and CMO may differ from contractual maturities because the mortgages underlying the securities may be called or prepaid without any penalties. Therefore, these securities are not included in the maturity categories in the following summary. Available For Sale (in thousands) Amortized Cost Fair Value Due in one year or less $ 47,767 $ 48,096 Due after one year through five years 400,857 402,957 Due after five years through ten years 648,678 646,062 Due after ten years 316,534 321,470 $ 1,413,836 $ 1,418,585 Mortgage-backed securities 100,325 100,626 Collateralized mortgage obligations 785,945 768,899 Total $ 2,300,106 $ 2,288,110

Loans Receivable and the Allowa

Loans Receivable and the Allowance for Credit Losses	12 Months Ended
	Dec. 31, 2021
Loans and Leases Receivable Disclosure [Abstract]
Loans Receivable and the Allowance for Credit Losses	Loans Receivable and the Allowance for Credit Losses The composition of loans by class of receivable was as follows: As of December 31, (in thousands) 2021 2020 Agricultural $ 103,417 $ 116,392 Commercial and industrial 902,314 1,055,488 Commercial real estate: Construction & development 172,160 181,291 Farmland 144,673 144,970 Multifamily 244,503 256,525 Commercial real estate-other 1,143,205 1,149,575 Total commercial real estate 1,704,541 1,732,361 Residential real estate: One- to four- family first liens 333,308 355,684 One- to four- family junior liens 133,014 143,422 Total residential real estate 466,322 499,106 Consumer 68,418 78,876 Loans held for investment, net of unearned income $ 3,245,012 $ 3,482,223 Allowance for credit losses $ (48,700) $ (55,500) Total loans held for investment, net $ 3,196,312 $ 3,426,723 Loans with unpaid principal in the amount of $816.0 million and $830.2 million at December 31, 2021 and December 31, 2020, respectively, were pledged to the FHLB as collateral for borrowings. Non-accrual and Delinquent Loans Loans are placed on non-accrual when (1) payment in full of principal and interest is no longer expected or (2) principal or interest has been in default for 90 days or more unless the loan is both well secured with marketable collateral and in the process of collection. All loans rated doubtful or worse, and certain loans rated substandard, are placed on non-accrual. A non-accrual loan may be restored to an accrual status when (1) all past due principal and interest has been paid (excluding renewals and modifications that involve the capitalizing of interest) or (2) the loan becomes well secured with marketable collateral and is in the process of collection. An established track record of performance is also considered when determining accrual status. Loans are considered past due or delinquent when the contractual principal or interest due in accordance with the terms of the loan agreement or any portion thereof remains unpaid after the due date of the scheduled payment. The following table presents the amortized cost basis of loans based on delinquency status: Age Analysis of Past-Due Financial Assets (in thousands) Current 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total 90 Days or More Past Due and Accruing December 31, 2021 Agricultural $ 102,352 $ 244 $ — $ 821 $ 103,417 $ — Commercial and industrial 899,423 529 134 2,228 902,314 — Commercial real estate: Construction & development 171,169 396 — 595 172,160 — Farmland 141,814 116 — 2,743 144,673 — Multifamily 243,117 — 1,386 — 244,503 — Commercial real estate-other 1,129,073 8,417 306 5,409 1,143,205 — Total commercial real estate 1,685,173 8,929 1,692 8,747 1,704,541 — Residential real estate: One- to four- family first liens 330,992 1,057 1,057 202 333,308 — One- to four- family junior liens 132,392 261 135 226 133,014 — Total residential real estate 463,384 1,318 1,192 428 466,322 — Consumer 68,326 66 14 12 68,418 — Total $ 3,218,658 $ 11,086 $ 3,032 $ 12,236 $ 3,245,012 $ — December 31, 2020 Agricultural $ 115,284 $ 8 $ 45 $ 1,055 $ 116,392 $ — Commercial and industrial 1,051,727 477 333 2,951 1,055,488 106 Commercial real estate: Construction & development 180,059 586 42 604 181,291 — Farmland 138,798 226 324 5,622 144,970 — Multifamily 256,525 — — — 256,525 — Commercial real estate-other 1,132,015 11,514 318 5,728 1,149,575 — Total commercial real estate 1,707,397 12,326 684 11,954 1,732,361 — Residential real estate: One- to four- family first liens 351,370 2,062 566 1,686 355,684 625 One- to four- family junior liens 142,663 377 234 148 143,422 — Total residential real estate 494,033 2,439 800 1,834 499,106 625 Consumer 78,747 43 39 47 78,876 8 Total $ 3,447,188 $ 15,293 $ 1,901 $ 17,841 $ 3,482,223 $ 739 The following table presents the amortized cost basis of loans on non-accrual status, amortized cost basis of loans on non-accrual status with no allowance for credit losses recorded, and loans past due 90 days or more and still accruing by class of loan: Nonaccrual Nonaccrual with no Allowance for Credit Losses 90 Days or More Past Due And Accruing (in thousands) December 31, 2021 December 31, 2020 December 31, 2021 December 31, 2020 December 31, 2021 December 31, 2020 Agricultural $ 2,090 $ 2,584 $ 1,341 $ 1,599 $ — $ — Commercial and industrial 3,803 7,326 1,341 4,349 — 106 Commercial real estate: Construction and development 595 1,145 595 900 — — Farmland 5,499 8,319 4,156 7,266 — — Multifamily 987 746 323 39 — — Commercial real estate-other 16,544 19,134 1,063 2,497 — — Total commercial real estate 23,625 29,344 6,137 10,702 — — Residential real estate: One- to four- family first liens 1,275 1,895 345 75 — 625 One- to four- family junior liens 713 722 — 1 — — Total residential real estate 1,988 2,617 345 76 — 625 Consumer 34 79 — 13 — 8 Total $ 31,540 $ 41,950 $ 9,164 $ 16,739 $ — $ 739 The interest income recognized on loans that were on nonaccrual for the years ended December 31, 2021 and December 31, 2020 is $0.6 million and $1.0 million, respectively. Credit Quality Information The Company aggregates 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, credit documentation, and other factors. The Company analyzes loans individually to classify the loans as to credit risk. This analysis includes non-homogenous loans, such as agricultural, commercial and industrial, and commercial real estate loans. Loans not meeting the criteria described below that are analyzed individually are considered to be pass-rated. The Company uses the following definitions for risk ratings: Special Mention/Watch - A special mention/watch asset has potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the Company’s credit position at some future date. Special mention/watch assets are not adversely classified and do not expose the Company to sufficient risk to warrant adverse classification. Substandard - Substandard loans are inadequately protected by the current net worth 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 Company 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 known facts, conditions and values, highly questionable and improbable. Loss - Loans classified as loss are considered uncollectible and of such little value that their continuance as bankable assets is not warranted. This classification does not mean that the loan has absolutely no recovery or salvage value but rather it is not practical or desirable to defer writing off this basically worthless asset even though partial recovery may be affected in the future. Homogenous loans, including residential real estate and consumer loans, are not individually risk rated. Instead, these loans are categorized based on performance: performing and nonperforming. Nonperforming loans include those loans on nonaccrual and loans greater than 90 days past due and on accrual. The following table sets forth the amortized cost basis of loans by class of receivable by credit quality indicator and vintage based on the most recent analysis performed, as of December 31, 2021. As of December 31, 2021, there were no 'loss' rated credits. Term Loans by Origination Year Revolving Loans December 31, 2021 (in thousands) 2021 2020 2019 2018 2017 Prior Total Agricultural Pass $ 20,145 $ 8,604 $ 4,367 $ 1,260 $ 885 $ 947 $ 58,119 $ 94,327 Special mention / watch 1,255 148 245 — 17 993 1,685 4,343 Substandard 649 827 126 221 4 278 2,642 4,747 Doubtful — — — — — — — — Total $ 22,049 $ 9,579 $ 4,738 $ 1,481 $ 906 $ 2,218 $ 62,446 $ 103,417 Commercial and industrial Pass $ 297,285 $ 199,324 $ 56,258 $ 35,522 $ 60,294 $ 75,342 $ 132,323 $ 856,348 Special mention / watch 4,268 2,342 781 470 4,304 14,274 6,938 33,377 Substandard 8 1,772 1,255 772 37 2,922 5,823 12,589 Doubtful — — — — — — — — Total $ 301,561 $ 203,438 $ 58,294 $ 36,764 $ 64,635 $ 92,538 $ 145,084 $ 902,314 CRE - Construction and development Pass $ 90,662 $ 37,098 $ 4,942 $ 1,611 $ 1,543 $ 578 $ 33,197 $ 169,631 Special mention / watch 874 — 169 — — — — 1,043 Substandard — 879 596 — — 11 — 1,486 Doubtful — — — — — — — — Total $ 91,536 $ 37,977 $ 5,707 $ 1,611 $ 1,543 $ 589 $ 33,197 $ 172,160 CRE - Farmland Pass $ 51,682 $ 33,870 $ 18,674 $ 5,105 $ 5,060 $ 10,240 $ 1,812 $ 126,443 Special mention / watch 3,105 3,824 — 734 292 223 — 8,178 Substandard 1,580 2,004 1,681 2,562 1,667 558 — 10,052 Doubtful — — — — — — — — Total $ 56,367 $ 39,698 $ 20,355 $ 8,401 $ 7,019 $ 11,021 $ 1,812 $ 144,673 CRE - Multifamily Pass $ 97,188 $ 96,389 $ 19,234 $ 2,754 $ 4,555 $ 3,813 $ 273 $ 224,206 Special mention / watch 7,871 — — 6,000 1,859 544 — 16,274 Substandard 663 2,049 — — — 1,311 — 4,023 Doubtful — — — — — — — — Total $ 105,722 $ 98,438 $ 19,234 $ 8,754 $ 6,414 $ 5,668 $ 273 $ 244,503 CRE - other Pass $ 325,902 $ 384,591 $ 94,449 $ 37,960 $ 60,890 $ 60,543 $ 45,910 $ 1,010,245 Special mention / watch 5,302 26,239 5,172 11,243 2,557 1,905 1,768 54,186 Substandard 4,182 48,885 12,497 5,401 973 6,836 — 78,774 Doubtful — — — — — — — — Total $ 335,386 $ 459,715 $ 112,118 $ 54,604 $ 64,420 $ 69,284 $ 47,678 $ 1,143,205 RRE - One- to four- family first liens Performing $ 115,539 $ 77,086 $ 27,279 $ 24,697 $ 16,425 $ 65,676 $ 5,331 $ 332,033 Nonperforming 352 20 45 295 — 563 — 1,275 Total $ 115,891 $ 77,106 $ 27,324 $ 24,992 $ 16,425 $ 66,239 $ 5,331 $ 333,308 RRE - One- to four- family junior liens Performing $ 29,904 $ 13,335 $ 4,295 $ 5,109 $ 3,574 $ 5,104 $ 70,980 $ 132,301 Nonperforming 31 — 156 198 16 207 105 713 Total $ 29,935 $ 13,335 $ 4,451 $ 5,307 $ 3,590 $ 5,311 $ 71,085 $ 133,014 Consumer Performing $ 33,124 $ 14,386 $ 5,917 $ 4,080 $ 1,686 $ 5,778 $ 3,412 $ 68,383 Nonperforming — — 15 — 13 7 — 35 Total $ 33,124 $ 14,386 $ 5,932 $ 4,080 $ 1,699 $ 5,785 $ 3,412 $ 68,418 Total by Credit Quality Indicator Category Pass $ 882,864 $ 759,876 $ 197,924 $ 84,212 $ 133,227 $ 151,463 $ 271,634 $ 2,481,200 Special mention / watch 22,675 32,553 6,367 18,447 9,029 17,939 10,391 117,401 Substandard 7,082 56,416 16,155 8,956 2,681 11,916 8,465 111,671 Doubtful — — — — — — — — Performing 178,567 104,807 37,491 33,886 21,685 76,558 79,723 532,717 Nonperforming 383 20 216 493 29 777 105 2,023 Total $ 1,091,571 $ 953,672 $ 258,153 $ 145,994 $ 166,651 $ 258,653 $ 370,318 $ 3,245,012 The following table sets forth the amortized cost basis of loans by class of receivable by credit quality indicator and vintage based on the most recent analysis performed, as of December 31, 2020. As of December 31, 2020, there were no 'loss' rated credits. Term Loans by Origination Year Revolving Loans December 31, 2020 (in thousands) 2020 2019 2018 2017 2016 Prior Total Agricultural Pass $ 17,836 $ 6,959 $ 2,764 $ 2,145 $ 1,386 $ 1,833 $ 60,802 $ 93,725 Special mention / watch 4,892 1,083 117 108 553 1,103 7,210 15,066 Substandard 4,075 650 258 183 121 226 2,086 7,599 Doubtful 1 — — — — 1 — 2 Total $ 26,804 $ 8,692 $ 3,139 $ 2,436 $ 2,060 $ 3,163 $ 70,098 $ 116,392 Commercial and industrial Pass $ 546,171 $ 105,523 $ 57,055 $ 61,753 $ 38,695 $ 92,526 $ 120,498 $ 1,022,221 Special mention / watch 3,410 572 497 2,261 611 112 4,796 12,259 Substandard 5,014 1,539 928 656 461 3,261 9,144 21,003 Doubtful — — — 1 — 3 1 5 Total $ 554,595 $ 107,634 $ 58,480 $ 64,671 $ 39,767 $ 95,902 $ 134,439 $ 1,055,488 CRE - Construction and development Pass $ 109,885 $ 25,972 $ 14,994 $ 2,696 $ 679 $ 876 $ 22,519 $ 177,621 Special mention / watch 843 298 542 — 9 3 — 1,695 Substandard 597 1,132 220 — — 26 — 1,975 Doubtful — — — — — — — — Total $ 111,325 $ 27,402 $ 15,756 $ 2,696 $ 688 $ 905 $ 22,519 $ 181,291 CRE - Farmland Pass $ 48,378 $ 25,022 $ 9,577 $ 10,490 $ 8,378 $ 13,003 $ 1,263 $ 116,111 Special mention / watch 8,088 4,583 935 660 361 237 — 14,864 Substandard 3,924 2,627 4,386 1,728 166 1,128 36 13,995 Doubtful — — — — — — — — Total $ 60,390 $ 32,232 $ 14,898 $ 12,878 $ 8,905 $ 14,368 $ 1,299 $ 144,970 CRE - Multifamily Pass $ 164,817 $ 18,992 $ 17,805 $ 10,706 $ 10,201 $ 19,581 $ 11,558 $ 253,660 Special mention / watch 345 — — — 59 — — 404 Substandard 1,099 — — — 1,362 — — 2,461 Doubtful — — — — — — — — Total $ 166,261 $ 18,992 $ 17,805 $ 10,706 $ 11,622 $ 19,581 $ 11,558 $ 256,525 CRE - other Pass $ 487,771 $ 129,388 $ 60,957 $ 83,393 $ 66,369 $ 91,698 $ 45,129 $ 964,705 Special mention / watch 71,141 14,870 12,415 5,953 3,756 4,335 455 112,925 Substandard 48,690 7,162 6,370 1,222 579 6,997 925 71,945 Doubtful — — — — — — — — Total $ 607,602 $ 151,420 $ 79,742 $ 90,568 $ 70,704 $ 103,030 $ 46,509 $ 1,149,575 RRE - One- to four- family first liens Performing $ 117,923 $ 46,581 $ 42,875 $ 30,628 $ 37,407 $ 68,501 $ 9,249 $ 353,164 Nonperforming 239 1 596 303 148 1,233 — 2,520 Total $ 118,162 $ 46,582 $ 43,471 $ 30,931 $ 37,555 $ 69,734 $ 9,249 $ 355,684 RRE - One- to four- family junior liens Performing $ 19,818 $ 7,973 $ 12,140 $ 6,152 $ 3,467 $ 5,354 $ 87,795 $ 142,699 Nonperforming 7 — 223 17 116 190 170 723 Total $ 19,825 $ 7,973 $ 12,363 $ 6,169 $ 3,583 $ 5,544 $ 87,965 $ 143,422 Consumer Performing $ 30,755 $ 13,662 $ 10,341 $ 4,960 $ 2,656 $ 6,306 $ 10,118 $ 78,798 Nonperforming 2 21 13 5 13 24 — 78 Total $ 30,757 $ 13,683 $ 10,354 $ 4,965 $ 2,669 $ 6,330 $ 10,118 $ 78,876 Total by Credit Quality Indicator Category Pass $ 1,374,858 $ 311,856 $ 163,152 $ 171,183 $ 125,708 $ 219,517 $ 261,769 $ 2,628,043 Special mention / watch 88,719 21,406 14,506 8,982 5,349 5,790 12,461 157,213 Substandard 63,399 13,110 12,162 3,789 2,689 11,638 12,191 118,978 Doubtful 1 — — 1 — 4 1 7 Performing 168,496 68,216 65,356 41,740 43,530 80,161 107,162 574,661 Nonperforming 248 22 832 325 277 1,447 170 3,321 Total $ 1,695,721 $ 414,610 $ 256,008 $ 226,020 $ 177,553 $ 318,557 $ 393,754 $ 3,482,223 Allowance for Credit Losses At December 31, 2021, the economic forecast used by the Company showed the following: (1) Midwest unemployment – decreases over the next three forecasted quarters, followed by an increase in the fourth forecasted quarter; (2) Year-to-year change in national retail sales - increases over the next four forecasted quarters; (3) Year-to-year change in CRE Index - increases over the next four forecasted quarters; (4) Year-to-year change in U.S. GDP - increases over the next four forecasted quarters; (5) Year-to-year change in National Home Price Index – increases over the next four forecasted quarters; and (6) Rental Vacancy - increases over the next four forecasted quarters. The decline in the ACL between the years ended December 31, 2020 and December 31, 2021 is reflective of overall improvements in forecasted economic conditions and improvement in the credit risk profile, coupled with net loan recoveries of $0.4 million for the year ended December 31, 2021, as compared to net loan charge-offs of $5.3 million in the year ended December 31, 2020. We have made a policy election to report interest receivable as a separate line on the balance sheet. Accrued interest receivable, which is recorded within 'Other Assets' totaled $10.4 million and $14.2 million at December 31, 2021 and December 31, 2020, respectively and is excluded from the estimate of credit losses. The changes in the allowance for credit losses by portfolio segment were as follows: For the Years Ended December 31, 2021, 2020 and 2019 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total 2021 Beginning balance, prior to the adoption of ASC 326 $ 1,346 $ 15,689 $ 32,640 $ 4,882 $ 943 $ 55,500 Charge-offs (170) (1,015) (602) (107) (438) (2,332) Recoveries 149 1,604 742 88 185 2,768 Credit loss (benefit) expense (1) (658) 1,016 (6,660) (853) (81) (7,236) Ending balance $ 667 $ 17,294 $ 26,120 $ 4,010 $ 609 $ 48,700 2020 Beginning balance $ 3,748 $ 8,394 $ 13,804 $ 2,685 $ 448 $ 29,079 Day 1 transition adjustment from adoption of ASC 326 (2,557) 2,728 1,300 2,050 463 $ 3,984 Charge-offs (1,051) (2,502) (2,317) (186) (737) (6,793) Recoveries 130 1,055 124 49 170 1,528 Credit loss expense (1) 1,076 6,014 19,729 284 599 27,702 Ending balance $ 1,346 $ 15,689 $ 32,640 $ 4,882 $ 943 $ 55,500 2019 Beginning balance $ 3,637 $ 7,478 $ 15,635 $ 2,349 $ 208 $ 29,307 Charge-offs (1,130) (4,774) (1,537) (229) (720) (8,390) Recoveries 32 195 311 105 361 1,004 Credit loss (benefit) expense 1,209 5,495 (605) 460 599 7,158 Ending balance $ 3,748 $ 8,394 $ 13,804 $ 2,685 $ 448 $ 29,079 (1) The difference in the credit loss expense reported herein as compared to the Consolidated Statements of Income is associated with the credit loss benefit of $0.1 million and a credit loss expense of $0.7 million related to off-balance sheet credit exposures for the years ended December 31, 2021 and December 31, 2020, respectively. There was no credit loss expense related to off-balance sheet credit exposures recorded in the year ended December 31, 2019. The composition of allowance for credit losses by portfolio segment based on evaluation method were as follows: As of December 31, 2021 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total Loans held for investment, net of unearned income Individually evaluated for impairment $ 1,341 $ 3,005 $ 23,118 $ 570 $ — $ 28,034 Collectively evaluated for impairment 102,076 899,309 1,681,423 465,752 68,418 3,216,978 Total $ 103,417 $ 902,314 $ 1,704,541 $ 466,322 $ 68,418 $ 3,245,012 Allowance for credit losses Individually evaluated for impairment $ — $ 681 $ 2,193 $ 224 $ — $ 3,098 Collectively evaluated for impairment 667 16,613 23,927 3,786 609 45,602 Total $ 667 $ 17,294 $ 26,120 $ 4,010 $ 609 $ 48,700 As of December 31, 2020 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total Loans held for investment, net of unearned income Individually evaluated for impairment $ 2,088 $ 6,582 $ 28,235 $ 427 $ 8 $ 37,340 Collectively evaluated for impairment 114,304 1,048,906 1,704,126 498,679 78,868 3,444,883 Total $ 116,392 $ 1,055,488 $ 1,732,361 $ 499,106 $ 78,876 $ 3,482,223 Allowance for loan losses Individually evaluated for impairment $ 66 $ 799 $ 2,031 $ 179 $ — $ 3,075 Collectively evaluated for impairment 1,280 14,890 30,609 4,703 943 52,425 Total $ 1,346 $ 15,689 $ 32,640 $ 4,882 $ 943 $ 55,500 The following table presents the amortized cost basis of collateral dependent loans, by the primary collateral type, which are individually evaluated to determine expected credit losses, and the related ACL allocated to these loans: As of December 31, 2021 Primary Type of Collateral (in thousands) Real Estate Equipment Other Total ACL Allocation Agricultural $ 916 $ 425 $ — $ 1,341 $ — Commercial and industrial 408 374 2,223 3,005 681 Commercial real estate: Construction and development 595 — — 595 — Farmland 5,185 — — 5,185 22 Multifamily 987 — — 987 387 Commercial real estate-other 16,130 — 221 16,351 1,784 Residential real estate: One- to four- family first liens 410 — — 410 64 One- to four- family junior liens — — 160 160 160 Consumer — — — — — Total $ 24,631 $ 799 $ 2,604 $ 28,034 $ 3,098 As of December 31, 2020 Primary Type of Collateral (in thousands) Real Estate Equipment Other Total ACL Allocation Agricultural $ 516 $ 824 $ 748 $ 2,088 $ 66 Commercial and industrial 667 3,037 2,878 6,582 799 Commercial real estate: Construction and development 899 — — 899 — Farmland 7,850 — — 7,850 88 Multifamily 746 — — 746 202 Commercial real estate-other 18,740 — — 18,740 1,741 Residential real estate: One- to four- family first liens 204 — — 204 132 One- to four- family junior liens 223 — — 223 47 Consumer — 8 — 8 — Total $ 29,845 $ 3,869 $ 3,626 $ 37,340 $ 3,075 Troubled Debt Restructurings TDRs totaled $20.0 million as of December 31, 2021 and $11.0 million as of December 31, 2020. As of December 31, 2021, the Company had $8 thousand of commitments to lend additional funds to borrowers with loans classified as TDR. The following table sets forth information on the Company's TDRs by class of financing receivable occurring during the stated periods. TDRs may include multiple concessions, and the disclosure classifications in the table are based on the primary concession provided to the borrower. 2021 2020 2019 (dollars in thousands) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment CONCESSION - Interest rate reduction Commercial and industrial — $ — $ — 1 $ 143 $ 143 — $ — $ — Farmland 2 1,982 1,982 — — — — — — One- to four- family first liens 1 171 171 — — — — — — CONCESSION - Extended maturity date Agricultural — — — — — — 7 341 341 Commercial and industrial — — — 2 480 480 3 6,309 6,309 Farmland — — — — — — 1 158 158 Multifamily — — — 1 39 39 — — — Commercial real estate-other 2 9,717 9,623 3 759 808 — — — One- to four- family first liens 3 263 263 3 274 278 4 294 293 One- to four- family junior liens — — — — — — 6 168 168 CONCESSION - Other Agricultural — — — 4 848 858 — — — Farmland — — — 3 504 514 — — — Multifamily — — — 1 706 706 — — — Commercial real estate-other 1 44 44 1 667 667 — — — One- to four- family first liens 1 150 150 3 317 317 — — — Total 10 $ 12,327 $ 12,233 22 $ 4,737 $ 4,810 21 $ 7,270 $ 7,269 Loans by class of financing receivable modified as TDRs that redefaulted within 12 months subsequent to restructure during the stated periods were: 2021 2020 2019 Number of Contracts Recorded Investment Number of Contracts Recorded Investment Number of Contracts Recorded Investment (dollars in thousands) CONCESSION - Interest rate reduction Farmland 1 $ 1 — $ — — $ — CONCESSION - Extended maturity date Agricultural — — — — 6 315 Commercial and industrial — — 1 142 — — Farmland — — — — 1 158 Commercial real estate-other 1 132 — — — — One- to four- family first liens — — 2 203 3 239 One- to four- family junior liens — — — — 2 30 CONCESSION - Other Agricultural — — 1 59 — — Farmland — — 1 150 — — Multifamily 1 663 — — — — One- to four- family first liens — — 1 169 — — Total 3 $ 796 6 $ 723 12 $ 742 Modifications in response to COVID-19: The Company offered short-term loan modifications to assist borrowers during the COVID-19 pandemic. The CARES Act, as extended by the CAA, along with a joint interagency statement issued by the federal banking agencies, provided that short-term modifications made in response to COVID-19 did not need to be accounted for as a TDR. Accordingly, the Company did not account for such loan modifications as TDRs. The Company's loan modifications allowed for the initial deferral of three months of principal and/or interest. The deferred interest is due and payable at the end of the deferral period, and the deferred principal is due and payable on the maturity date. At December 31, 2021, the outstanding balance of loans modified as a result of the COVID-19 pandemic totaled $2.9 million. This program has ended and no additional deferrals are being granted on loans. Pre-ASC 326 Adoption Impaired Loan Disclosures The following table presents the average recorded investment and interest income recognized for loans individually evaluated for impairment, excluding purchased credit impaired loans, by class of receivable, during the stated periods, which were prior to the adoption of ASC 326: For the Year Ended December 31, 2019 (in thousands) Average Recorded Investment Interest Income Recognized With no related allowance recorded: Agricultural $ 2,388 $ 43 Commercial and industrial 5,323 — Commercial real estate: Construction & development 244 37 Farmland 2,243 — Multifamily — — Commercial real estate-other 2,161 224 Total commercial real estate 4,648 261 Residential real estate: One- to four- family first liens 323 2 One- to four- family junior liens — — Total residential real estate 323 2 Consumer 17 — Total $ 12,699 $ 306 With an allowance recorded: Agricultural $ 1,500 $ 34 Commercial and industrial 2,186 136 Commercial real estate: Construction & development 26 7 Farmland 684 5 Multifamily — — Commercial real estate-other 1,558 100 Total commercial real estate 2,268 112 Residential real estate: One- to four- family first liens 265 9 One- to four- family junior liens — — Total residential real estate 265 9 Consumer — — Total $ 6,219 $ 291 Total: Agricultural $ 3,888 $ 77 Commercial and industrial 7,509 136 Commercial real estate: Construction & development 270 44 Farmland 2,927 5 Multifamily — — Commercial real estate-other 3,719 324 Total commercial real estate 6,916 373 Residential real estate: One- to four- family first liens 588 11 One- to four- family junior liens — — Total residential real estate 588 11 Consumer 17 — Total $ 18,918 $ 597

Derivatives, Hedging Activities

Derivatives, Hedging Activities and Balance Sheet Offsetting	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives, Hedging Activities and Balance Sheet Offsetting	Derivatives, Hedging Activities and Balance Sheet Offsetting The following table presents the total notional amounts and gross fair values of the Company’s derivatives as of the dates indicated. The derivative asset and liability balances are presented on a gross basis, prior to the application of master netting agreements, as included in other assets and other liabilities, respectively, on the consolidated balance sheets. As of December 31, 2021 As of December 31, 2020 Notional Fair Value Notional Fair Value (in thousands) Assets Liabilities Assets Liabilities Designated as hedging instruments: Fair value hedges: Interest rate swaps $ 24,802 $ 424 $ 1,400 $ 25,559 $ 34 $ 2,452 Total $ 24,802 $ 424 $ 1,400 $ 25,559 $ 34 $ 2,452 Not designated as hedging instruments: Interest rate swaps $ 356,636 $ 5,352 $ 5,363 $ 347,380 $ 10,758 $ 10,807 RPAs - protection sold 4,229 — — 4,471 4 — RPAs - protection purchased 9,629 — 2 9,825 — 8 Interest rate lock commitments 17,438 330 — — — — Interest rate forward loan sales contracts 22,710 — (24) — — — Total $ 410,642 $ 5,682 $ 5,341 $ 361,676 $ 10,762 $ 10,815 Derivatives Designated as Hedging Instruments The Company uses derivative instruments to hedge its exposure to economic risks, including interest rate, liquidity, and credit risk. Certain hedging relationships are formally designated and qualify for hedge accounting under GAAP as fair value or cash flow hedges. Fair Value Hedges - Derivatives are designated as fair value hedges to limit the Company's exposure to changes in the fair value of assets or liabilities due to movements in interest rates. The Company entered into pay-fixed receive-floating interest rate swaps to manage its exposure to changes in fair value in certain fixed-rate assets. The gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in interest income. Cash Flow Hedges - Derivatives are designated as cash flow hedges in order to minimize the variability in cash flows of earning assets or forecasted transactions caused by movement in interest rates. In February 2020, the Company entered into a pay-fixed receive-variable interest rate swap with a notional amount of $30.0 million to hedge against adverse fluctuations in interest rates by reducing exposure to variability in cash flows relating to interest payments on the Company's variable rate debt. The interest rate swap was designated as a cash flow hedge. The gain or loss on the derivative was recorded in accumulated other comprehensive income and subsequently reclassified into interest expense in the same period(s) during which the hedged transaction affects earnings. The Company terminated its cash flow hedge in the fourth quarter of 2020. The table below presents the effect of cash flow hedge accounting on AOCI for the years ended December 31, 2021 and 2020. Amount of Gain (Loss) Recognized in AOCI on Derivative Location of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Year Ended December 31, Year Ended December 31, (in thousands) 2021 2020 2021 2020 Interest rate swaps $ — $ (1,002) Interest Expense $ — $ (1,002) The table below presents the effect of the Company’s derivative financial instruments designated as hedging instruments on the consolidated statements of income for the years ended December 31, 2021, 2020, and 2019: Location and Amount of Gain or Loss Recognized in Income on Fair Value and Cash Flow Hedging Relationships For the Years Ended December 31, 2021 2020 2019 (in thousands) Interest Income Other Income Interest Income Other Income Interest Income Other Income Total amounts of income and expense line items presented in the consolidated statements of income in which the effects of fair value or cash flow hedges are recorded $ (439) $ — $ (335) $ — $ 1 $ — The effects of fair value and cash flow hedging: Gain (Loss) on fair value hedging relationships: Interest contracts: Hedged items (1,441) — 1,308 — 891 — Derivative designated as hedging instruments 1,052 — (1,339) — (890) — Income statement effect of cash flow hedging relationships: Interest contracts: Amount reclassified from AOCI into income — — (226) — — — Amount of loss reclassified from AOCI into income upon de-designation of cash flow hedge — — — (776) — — As of December 31, 2021, the following amounts were recorded on the balance sheet related to cumulative basis adjustment for fair value hedges: Balance Sheet Line Item in Which the Carrying Amount of the Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset (in thousands) Loans $ 25,801 $ 978 Derivatives Not Designated as Hedging Instruments Interest Rate Swaps - The Company periodically enters into commercial loan interest rate swap agreements in order to provide commercial loan customers with the ability to convert from variable to fixed interest rates. These derivative contracts relate to transactions in which the Company enters into an interest rate swap with a customer, while simultaneously entering into an offsetting interest rate swap with an institutional counterparty. Credit Risk Participation Agreements -The Company enters into RPAs to manage the credit exposure on interest rate contracts associated with a syndicated loan. The Company may enter into protection purchased RPAs with institutional counterparties to decrease or increase its exposure to a borrower. Under the RPA, the Company will receive or make payment if a borrower defaults on the related interest rate contract. The notional amount of the RPAs reflects the Company’s pro-rata share of the derivative instrument. Interest Rate Forward Loan Sales Contracts & Interest Rate Lock Commitments - The Company enters into forward delivery contracts to sell residential mortgage loans at specific prices and dates in order to hedge the interest rate risk in its portfolio of mortgage loans held for sale and its residential mortgage interest rate lock commitments. At December 31, 2021, the Bank had commitments to originate mortgage loans held for sale totaling $17.4 million and forward sales commitments of $22.7 million, which are used to hedge both on-balance sheet and off-balance sheet exposures. At December 31, 2020, the Bank had $54.1 million of commitments to originate mortgage loans held for sale and no forward sales commitments. The following table presents the net gains (losses) recognized on the consolidated statements of income related to the derivatives not designated as hedging instruments for the years ended December 31, 2021, 2020, and 2019: Location in the Consolidated Statements of Income For the Years Ended December 31, (in thousands) 2021 2020 2019 Interest rate swaps Other income $ 38 $ 126 $ (138) RPAs Other income 2 102 (117) Interest rate lock commitments Loan revenue 330 — — Interest rate forward loan sales contracts Loan revenue 24 — — Total $ 394 $ 228 $ (255) Offsetting of Derivatives The Company has entered into agreements with certain counterparty financial institutions, which include master netting agreements. However, the Company has elected to account for all derivatives with counterparty institutions on a gross basis. The Company manages the risk of default by its borrower counterparties through its normal loan underwriting and credit monitoring policies and procedures. The table below presents gross derivatives and the respective collateral received or pledged in the form of other financial instruments as of December 31, 2021 and December 31, 2020, which are generally marketable securities and/or cash. The collateral amounts in the table below are limited to the outstanding balances of the related asset or liability (after netting is applied); thus instances of over-collateralization are not shown. Further, the net amounts of derivative assets or liabilities can be reconciled to the tabular disclosure of fair value. The tabular disclosure of fair value provides the location that derivative assets and liabilities are presented on the consolidated balance sheets. Gross Amounts of Recognized Assets (Liabilities) Gross Amounts Offset in the Balance Sheet Net Amounts of Assets (Liabilities) presented in the Balance Sheet Gross Amounts Not Offset in the Balance Sheet Net Assets (Liabilities) (in thousands) Financial Instruments Cash Collateral Received (Paid) As of December 31, 2021 Asset Derivatives $ 6,106 $ — $ 6,106 $ — $ — $ 6,106 Liability Derivatives (6,741) — (6,741) (3,250) (3,491) As of December 31, 2020 Asset Derivatives $ 10,796 $ — $ 10,796 $ — $ — $ 10,796 Liability Derivatives (13,267) — (13,267) — (13,267) — Credit-risk-related Contingent Features The Company has an unsecured federal funds line with its institutional derivative counterparty. The Company has an agreement with its institutional derivative counterparty that contains a provision under which if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. The Company also has an agreement with its derivative counterparty that contains a provision under which the Company could be declared in default on its derivative obligations if repayment of the underlying indebtedness is accelerated by the lender due to the Company’s default on the indebtedness. As of December 31, 2021, the fair value of derivatives in a net liability position, which includes accrued interest but excludes any adjustment for nonperformance risk, related to these agreements was $5.2 million. As of December 31, 2021, the Company has minimum collateral posting thresholds with certain of its derivative counterparties, and has posted $3.3 million of collateral related to these agreements. If the Company had breached any of these provisions at December 31, 2021, it could have been required to settle its obligations under the agreements at their termination value of $5.2 million.

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and Equipment Premises and equipment as of December 31, 2021 and 2020 were as follows: As of December 31, (in thousands) 2021 2020 Land $ 14,144 $ 14,144 Buildings and leasehold improvements 89,141 88,783 Furniture and equipment 20,978 21,969 Construction in process 319 82 Premises and equipment 124,582 124,978 Accumulated depreciation and amortization 41,090 38,577 Premises and equipment, net $ 83,492 $ 86,401 Premises and equipment depreciation and amortization expense for the years ended December 31, 2021, 2020 and 2019 was $4.8 million, $5.1 million and $4.8 million, respectively.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets The following table presents the changes in the carrying amount of goodwill for the periods indicated: For the Years Ended December 31, (in thousands) 2021 2020 Goodwill, beginning of period $ 62,477 $ 91,918 Fair value adjustment (1) — 2,059 Goodwill impairment (2) — (31,500) Total goodwill, end of period $ 62,477 $ 62,477 (1) Goodwill adjustments consisted of the ATBancorp acquisition purchase accounting adjustments, which were finalized in the first quarter of 2020. (2) Goodwill impairment relates to the impairment charge that was recorded in the third quarter of 2020. Refer to Note 1. Nature of Business and Significant Accounting Policies for additional information. The following table presents the gross carrying amount, accumulated amortization, and net carrying amount of other intangible assets at the dates indicated: As of December 31, 2021 As of December 31, 2020 (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Core deposit intangible $ 41,745 $ (30,629) $ 11,116 $ 41,745 $ (26,440) $ 15,305 Customer relationship intangible 5,265 (3,692) 1,573 5,265 (2,630) 2,635 Other 2,700 (2,544) 156 2,700 (2,438) 262 $ 49,710 $ (36,865) $ 12,845 $ 49,710 $ (31,508) $ 18,202 Indefinite-lived trade name intangible $ 7,040 $ 7,040 The following table provides the estimated future amortization expense of intangible assets: (in thousands) Core Deposit Intangible Customer Relationship Intangible Other Total Year ending December 31, 2022 $ 3,487 $ 797 $ 79 $ 4,363 2023 2,833 518 51 3,402 2024 2,180 239 24 2,443 2025 1,526 19 2 1,547 2026 872 — — 872 Thereafter 218 — — 218 Total $ 11,116 $ 1,573 $ 156 $ 12,845

Other Assets

Other Assets	12 Months Ended
	Dec. 31, 2021
Other Assets [Abstract]
Other Assets	Other Assets The components of the Company’s other assets as of December 31, 2021 and December 31, 2020 were as follows: As of December 31, (in thousands) 2021 2020 Bank-owned life insurance $ 85,372 $ 83,483 Interest receivable 20,117 21,706 FHLB stock 10,157 13,784 Mortgage servicing rights 6,532 5,137 Operating lease right-of-use assets, net 2,840 3,613 Federal & state taxes, current 178 — Federal & state taxes, deferred 13,893 3,845 Derivative assets 6,106 10,796 Other receivables/assets 12,553 11,129 $ 157,748 $ 153,493

Loans Serviced for Others

Loans Serviced for Others	12 Months Ended
	Dec. 31, 2021
Loans Serviced for Others [Abstract]
Loans Serviced for Others	Loans Serviced for OthersLoans serviced for others are not included in the accompanying consolidated balance sheets. The unpaid principal balances of mortgage and other loans serviced for others were $1.1 billion at December 31, 2021 and December 31, 2020. Servicing loans for others generally consists of collecting mortgage payments, maintaining escrow accounts, disbursing payments to investors and collection and foreclosure processing. Loan servicing income is recorded on the accrual basis and includes servicing fees from investors and certain charges collected from borrowers, such as late payment fees, and is net of fair value adjustments to capitalized mortgage servicing rights.

Deposits

Deposits	12 Months Ended
	Dec. 31, 2021
Deposits [Abstract]
Deposits	Deposits The following table presents the composition of our deposits as of the dates indicated: As of December 31, (in thousands) 2021 2020 Noninterest-bearing deposits $ 1,005,369 $ 910,655 Interest checking deposits 1,619,136 1,351,641 Money market deposits 939,523 918,654 Savings deposits 628,242 529,751 Time deposits under $250 505,392 581,471 Time deposits of $250 or more 416,857 254,877 Total deposits $ 5,114,519 $ 4,547,049 At December 31, 2021, the scheduled maturities of certificates of deposits were as follows: (in thousands) 2022 $ 687,934 2023 124,162 2024 70,116 2025 11,967 2026 23,879 Thereafter 4,191 Total $ 922,249 The Company had $3.4 million and $7.8 million in reciprocal time deposits through the CDARS program as of December 31, 2021 and December 31, 2020, respectively. Included in interest-bearing checking and money market deposits at December 31, 2021 and December 31, 2020 were $35.4 million and $14.8 million, respectively, of reciprocal deposits in the Insured Cash Sweep (ICS) program. The CDARS and ICS programs coordinate, on a reciprocal basis, a network of banks to spread deposits exceeding the FDIC insurance coverage limits out to numerous institutions in order to provide insurance coverage for all participating deposits. As of December 31, 2021 and December 31, 2020, the Company had public entity deposits that were collateralized by investment securities of $303.3 million and $156.7 million, respectively.

Short-Term Borrowings

Short-Term Borrowings	12 Months Ended
	Dec. 31, 2021
Short-term Debt [Abstract]
Short-Term Borrowings	Short-Term Borrowings The following table summarizes our short-term borrowings as of the dates indicated: December 31, 2021 December 31, 2020 (dollars in thousands) Weighted Average Rate Balance Weighted Average Rate Balance Securities sold under agreements to repurchase 0.24 % $ 181,368 0.28 % $ 174,289 Federal Home Loan Bank advances — — 0.29 56,500 Total 0.24 % $ 181,368 0.28 % $ 230,789 Securities Sold Under an Agreement to Repurchase: Securities sold under agreements to repurchase are agreements in which the Company acquires funds by selling assets to another party under a simultaneous agreement to repurchase the same assets at a specified price and date. The Company enters into repurchase agreements and also offers a demand deposit account product to customers that sweeps their balances in excess of an agreed upon target amount into overnight repurchase agreements. All securities sold under agreements to repurchase are recorded on the face of the balance sheet. Federal Home Loan Bank Advances: The Bank has a secured line of credit with the FHLBDM. Advances from the FHLBDM are collateralized primarily by one- to four-family residential, commercial and agricultural real estate first mortgages equal to various percentages of the total outstanding notes. See Note 4. Loans Receivable and the Allowance for Credit Losses of the notes to the consolidated financial statements. Federal Funds Purchased: The Bank has unsecured federal funds lines totaling $155.0 million from multiple correspondent banking relationships. There were no borrowings from such lines at either December 31, 2021 or December 31, 2020. Other: At December 31, 2021 and December 31, 2020, the Company had no Federal Reserve Discount Window borrowings, while the financing capacity was $60.2 million as of December 31, 2021 and $67.7 million as of December 31, 2020. As of December 31, 2021 and December 31, 2020, the Bank had municipal securities with a market value of $65.2 million and $72.0 million, respectively, pledged to the Federal Reserve Bank of Chicago to secure potential borrowings. The Company has a credit agreement with a correspondent bank with a revolving commitment of $25.0 million. Prior to September 30, 2021, interest on the outstanding balance was payable at a rate of one-month LIBOR plus 1.75%. Fees are paid on the average daily unused revolving commitment in the amount of 0.30% per annum. On October 22, 2021, the credit agreement was amended such that, commencing September 30, 2021, interest is payable on the $25.0 million revolving commitment at an annual rate equal to the monthly reset term SOFR rate plus 1.70%. There were no changes to the fees paid on the average daily unused revolving commitment as part of the amendment. The amended credit agreement matures on

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Junior Subordinated Notes Issued to Capital Trusts The table below summarizes the terms of each issuance of junior subordinated notes outstanding as of the dates indicated: December 31, 2021 Face Value Book Value Interest Rate Interest Rate Maturity Date Callable Date (in thousands) ATBancorp Statutory Trust I $ 7,732 $ 6,888 Three-month LIBOR + 1.68% 1.88 % 06/15/2036 06/15/2011 ATBancorp Statutory Trust II 12,372 10,908 Three-month LIBOR + 1.65% 1.85 % 09/15/2037 06/15/2012 Barron Investment Capital Trust I 2,062 1,800 Three-month LIBOR + 2.15% 2.37 % 09/23/2036 09/23/2011 Central Bancshares Capital Trust II 7,217 6,880 Three-month LIBOR + 3.50% 3.70 % 03/15/2038 03/15/2013 MidWestOne Statutory Trust II 15,464 15,464 Three-month LIBOR + 1.59% 1.79 % 12/15/2037 12/15/2012 Total $ 44,847 $ 41,940 December 31, 2020 ATBancorp Statutory Trust I $ 7,732 $ 6,850 Three-month LIBOR + 1.68% 1.90 % 06/15/2036 06/15/2011 ATBancorp Statutory Trust II 12,372 10,850 Three-month LIBOR + 1.65% 1.87 % 09/15/2037 06/15/2012 Barron Investment Capital Trust I 2,062 1,767 Three-month LIBOR + 2.15% 2.39 % 09/23/2036 09/23/2011 Central Bancshares Capital Trust II 7,217 6,832 Three-month LIBOR + 3.50% 3.72 % 03/15/2038 03/15/2013 MidWestOne Statutory Trust II 15,464 15,464 Three-month LIBOR + 1.59% 1.81 % 12/15/2037 12/15/2012 Total $ 44,847 $ 41,763 The trust preferred securities are subject to mandatory redemption, in whole or in part, upon repayment of the junior subordinated notes at the stated maturity date or upon redemption of the junior subordinated notes. Each trust’s ability to pay amounts due on the trust preferred securities is solely dependent upon the Company making payment on the related junior subordinated notes. The Company’s obligation under the junior subordinated notes and other relevant trust agreements, in aggregate, constitutes a full and unconditional guarantee by the Company of each trust’s obligations under the trust preferred securities issued by each trust. The Company has the right to defer payment of interest on the junior subordinated notes and, therefore, distributions on the trust preferred securities, for up to five years, but not beyond the stated maturity date in the table above. During any such deferral period the Company may not pay cash dividends on its stock and generally may not repurchase its stock. Subordinated Debentures On May 1, 2019, with the acquisition of ATBancorp, the Company assumed $10.9 million of subordinated debentures (the “ATB Debentures”). The ATB Debentures had a stated maturity of May 31, 2023, and bore interest at a fixed annual rate of 6.50%, with interest payable semi-annually. The Company redeemed the debentures, in whole, on May 31, 2021. At the time of redemption, the Company was permitted to treat 20% of the ATB Debentures as Tier 2 capital under the applicable rules and regulations of the Federal Reserve. The amount of ATB Debentures qualifying as Tier 2 regulatory capital would have been phased-out completely starting in the second quarter of 2022. On July 28, 2020, the Company completed the private placement offering of $65.0 million of its subordinated notes, of which $63.75 million have been exchanged for subordinated notes registered under the Securities Act of 1933. The 5.75% fixed-to-floating rate subordinated notes are due July 30, 2030. At December 31, 2021, 100% of the subordinated notes qualified as Tier 2 capital. Per applicable Federal Reserve rules and regulations, the amount of the subordinated notes qualifying as Tier 2 regulatory capital will be phased-out by 20% of the amount of the subordinated notes in each of the five years beginning on the fifth anniversary preceding the maturity date of the subordinated notes. Other Long-Term Debt Long-term borrowings were as follows as of December 31, 2021 and December 31, 2020: December 31, 2021 December 31, 2020 (in thousands) Weighted Average Rate Balance Weighted Average Rate Balance Finance lease payable 8.89 % $ 951 8.89 % $ 1,096 FHLB borrowings 2.76 48,113 1.92 91,198 Total 2.88 % $ 49,064 2.00 % $ 92,294 The Company utilizes FHLB borrowings as a funding source to supplement customer deposits and to assist in managing interest rate risk. As a member of the FHLBDM, the Bank may borrow funds from the FHLB in amounts up to 45% of the Bank’s total assets, provided the Bank is able to pledge an adequate amount of qualified assets to secure the borrowings. Advances from the FHLB are collateralized primarily by one- to four-family residential, commercial and agricultural real estate first mortgages equal to various percentages of the total outstanding notes. See Note 4. Loans Receivable and the Allowance for Credit Losses of the notes to the consolidated financial statements. At December 31, 2021, FHLB long-term borrowings included advances from the FHLBC, which were collateralized by investment securities. See Note 3. Debt Securities of the notes to the consolidated financial statements. As of December 31, 2021, FHLB borrowings were as follows: (in thousands) Weighted Average Rate Amount Due in 2022 2.68 % $ 31,000 Due in 2023 2.79 % 11,000 Due in 2024 3.15 % 6,000 Total 48,000 Valuation adjustment from acquisition accounting 113 Total $ 48,113

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income taxes for the years ended December 31, 2021, 2020 and 2019 are summarized as follows: December 31, (in thousands) 2021 2020 2019 Current: Federal tax expense $ 12,675 $ 7,376 $ 1,217 State tax expense 5,549 4,548 2,353 Deferred: Deferred income tax expense 1,768 (5,225) 3,003 Total income tax provision $ 19,992 $ 6,699 $ 6,573 Income tax expense (benefit) based on statutory rate for the year ended December 31, 2021, 2020 and 2019 varied from the amount computed by applying the maximum effective federal income tax rate of 21%, to the income before income taxes, because of the following items: Year ended December 31, 2021 2020 2019 (dollars in thousands) Amount % of Pretax Income Amount % of Pretax Income Amount % of Pretax Income Income tax based on statutory rate $ 18,790 21.0 % $ 2,798 21.0 % $ 10,543 21.0 % Tax-exempt interest (3,500) (3.9) (3,053) (22.9) (2,392) (4.8) Bank-owned life insurance (451) (0.5) (467) (3.5) (394) (0.8) State income taxes, net of federal income tax benefit 4,624 5.2 2,355 17.6 2,688 5.3 Goodwill impairment — — 6,615 49.6 — — Non-deductible acquisition expenses 41 — — — 177 0.4 General business credits 22 — (1,751) (13.1) (4,090) (8.1) Other 466 0.5 202 1.5 41 0.1 Total income tax expense $ 19,992 22.3 % $ 6,699 50.2 % $ 6,573 13.1 % Net deferred tax assets as of December 31, 2021 and December 31, 2020 consisted of the following components: December 31, (in thousands) 2021 2020 Deferred income tax assets: Allowance for credit losses $ 13,732 $ 15,529 Deferred compensation 3,483 3,698 Net operating losses (state corporate tax differences) 5,624 5,134 Unrealized losses on investment securities 3,131 — Accrued compensation 1,365 983 ROU liabilities 984 1,194 Other 2,003 2,656 Gross deferred tax assets 30,322 29,194 Deferred income tax liabilities: Premises and equipment depreciation and amortization 4,356 4,573 Purchase accounting adjustments 2,880 3,613 Mortgage servicing rights 1,702 1,339 Unrealized gains on investment securities — 8,685 ROU assets 930 1,144 Other 937 861 Gross deferred tax liabilities 10,805 20,215 Net deferred income tax asset 19,517 8,979 Valuation allowance 5,624 5,134 Net deferred tax asset $ 13,893 $ 3,845 The Company has recorded a deferred tax asset for the future tax benefits of Iowa net operating loss carryforwards. The Iowa net operating loss carryforwards amounting to approximately $58.1 million will expire in various amounts from 2022 to 2042. As of December 31, 2021 and 2020, the Company believed it was more likely than not that all temporary differences associated with the Iowa corporate tax return would not be fully realized. Accordingly, the Company has recorded a valuation allowance to reduce the net operating loss carryforward and the temporary differences associated with the Iowa corporate income tax return. A valuation allowance related to the remaining deferred tax assets has not been provided because management believes it is more likely than not that the results of future operations will generate sufficient taxable income to realize the deferred tax assets. The Company had no material unrecognized tax benefits as of December 31, 2021 and December 31, 2020.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2021
Employee Benefit Plans [Abstract]
Employee Benefit Plans	Employee Benefit Plans The Company has a salary reduction profit-sharing 401(k) plan covering all employees fulfilling minimum age and service requirements. Employee contributions to the plan are optional. Employer contributions are discretionary and may be made to the plan in an amount equal to a percentage of each participating employee’s salary. The Company matches 100% of the first 3% of employee contributions, and 50% of the next 2% of employee contributions, up to a maximum amount of 4% of an employee’s compensation. Company matching contributions for the years ended December 31, 2021, 2020 and 2019 were $1.9 million, $1.9 million, and $1.6 million, respectively. The Company has an ESOP covering all employees fulfilling minimum age and service requirements. Employer contributions are discretionary and may be made to the plan in an amount equal to a percentage of each participating employee’s salary. The ESOP contribution expense for the years ended December 31, 2021, 2020 and 2019 were $2.0 million, $1.2 million, and $1.5 million, respectively. The Company provides Health Savings Account contributions to its employees enrolled in high deductible plans. Company contributions for the years ended December 31, 2021, 2020 and 2019 were $0.3 million each year. Supplemental Executive Retirement Plans: The Company has entered into nonqualified supplemental executive retirement plans (SERPs) with certain executive officers. The SERPs allow certain executives to accumulate retirement benefits beyond those provided by the qualified plans. Changes in the liability related to the SERPs, included in other liabilities, were as follows for the years ended December 31, 2021, 2020 and 2019: (in thousands) 2021 2020 2019 Balance, beginning $ 1,395 $ 1,632 $ 1,867 Company contributions and interest 79 104 117 Cash payments made (228) (341) (352) Balance, ending $ 1,246 $ 1,395 $ 1,632 Salary Continuation Plans: The Company has salary continuation plans for several officers and directors. These plans provide payments of various amounts upon retirement or death. There are no employee compensation deferrals to these plans. The Company accrues the expense for these benefits by charges to operating expense during the period the respective officer or director attains full eligibility. Changes in the salary continuation agreements, included in other liabilities, were as follows for the years ended December 31, 2021, 2020 and 2019: (in thousands) 2021 2020 2019 Balance, beginning $ 4,771 $ 5,452 $ 1,104 Plans acquired in ATBancorp merger — — 11,058 Company paid interest 137 246 145 Cash payments made (619) (927) (6,855) Balance, ending $ 4,289 $ 4,771 $ 5,452 Deferred Compensation Plans: The Company has entered into deferred compensation agreements with certain executive officers. Under the provisions of the agreements, the officers may defer compensation. Interest on the deferred amounts is earned at The Wall Street Journal ’s prime rate plus one percent. The Company also maintains deferred compensation agreements with certain other officers and directors, under which deferrals are no longer permitted, and the interest rate is fixed at 4%. In 2019 the Company also acquired deferred compensations plans as a result of the merger with ATBancorp. Under the provisions of the agreements, interest on the deferred amounts is earned at an annual interest rate equal to either the Bank’s or Company’s return on equity and deferrals are no longer permitted. Upon retirement, participants will generally receive the deferral balance in equal monthly installments over periods no longer that 180 months. Changes in the deferred compensation agreements, included in other liabilities, were as follows for the years ended December 31, 2021, 2020 and 2019: (in thousands) 2021 2020 2019 Balance, beginning $ 6,159 $ 7,021 $ 855 Plans acquired in ATBancorp merger — — 5,958 Employee deferrals 223 200 157 Company paid interest 142 560 395 Cash payments made (644) (1,622) (344) Balance, ending $ 5,880 $ 6,159 $ 7,021 Post-retirement Death Benefit Plan: The Company has an insurance benefit plan for several officers that provides a life insurance benefit of the participant’s last annual salary after retirement. Changes in the accrued balance, included in other liabilities, were as follows for the years ended December 31, 2021, 2020 and 2019: (in thousands) 2021 2020 2019 Balance, beginning $ 1,905 $ 1,670 $ 1,442 Company deferral expense 86 235 228 Balance, ending $ 1,991 $ 1,905 $ 1,670 To provide the retirement benefits for the aforementioned SERPs, salary continuation plans, deferred compensation plans, and post-retirement death benefit plan, the Company carries life insurance policies which had cash values totaling $81.2 million, $79.0 million and $74.9 million at December 31, 2021, 2020 and 2019, respectively.

Stock Compensation Plans

Stock Compensation Plans	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Stock Compensation Plans	Stock Compensation Plans The Company’s 2017 Equity Incentive Plan (the “2017 Plan”) permits the Company to grant a total of 500,000 shares of the Company’s common stock as stock options, stock appreciation rights or stock awards (including restricted stock and restricted stock units) and also to grant cash incentive awards to eligible individuals. As of December 31, 2021, 250,697 shares of the Company’s common stock remained available for future awards under the 2017 Plan. During 2021, the Company recognized $2.2 million of stock based compensation expense related to restricted stock unit grants. In comparison, during 2020 and 2019, the Company recognized $1.4 million and $1.2 million, respectively, related to restricted stock unit grants. Under the 2017 Plan, the Company may grant restricted stock unit awards that vest upon the completion of future service requirements or specified performance criteria. Generally, all restricted stock units vest upon death, disability, or in connection with a change in control. In addition, both TRSUs and PRSUs receive forfeitable dividend equivalents. To the extent there is a financial restatement, any performance-based or incentive-based compensation that has been paid is subject to clawback. For TRSUs granted prior to 2020, the restricted stock units vest 25% per year over four years. Beginning with the TRSUs granted in 2020, each restricted stock unit award now vests 1/3rd per year over 3 years, with the first vesting date being the one The PRSUs cliff vest 3 years from the grant date based on certain performance conditions, which are weighted equally. The three-year performance measurement period commences at the beginning of the defined period. Upon retirement, PRSU awards remain eligible to vest at the conclusion of the performance period. The Company recognizes stock-based compensation expense for TRSUs over the vesting period, using the straight-line method, based upon the number of awards ultimately expected to vest. The fair value of the TRSUs is equal to the market price of the common stock at the grant date. Stock-based compensation expense for PRSUs is based upon the fair value of the underlying stock on the grant date, and is amortized over the vesting period using the straight-line method unless it is determined that: (1) attainment of the financial metrics is less than probable, in which case a portion of the amortization is suspended, or (2) attainment of the financial metrics is improbable, in which case a portion of the previously recognized amortization is reversed and also suspended. The following is a summary of non-vested restricted stock unit activity for the year ended December 31, 2021: Weighted-Average Shares Grant-Date Fair Value Non-vested at December 31, 2020 124,270 $ 28.80 Granted 84,066 28.40 Vested (54,266) 26.51 Forfeited (9,544) 29.92 Reinvested 3,556 28.62 Non-vested at December 31, 2021 148,082 $ 29.33 The fair value of restricted stock unit awards that vested during 2021 was $1.6 million, compared to $1.1 million and $1.0 million during the years ended December 31, 2020 and 2019, respectively. As of December 31, 2021, the total compensation costs related to non-vested restricted stock units that have not yet been recognized totaled $2.8 million, and the weighted average period over which these costs are expected to be recognized is approximately 1.9 years

Earnings per Share

Earnings per Share	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Earnings per Share	Earnings per Share Basic per-share amounts are computed by dividing net income by the weighted average number of common shares outstanding. Diluted per-share amounts assume issuance of all common stock issuable upon conversion or exercise of other securities, unless the effect is to reduce the loss or increase the income per common share from continuing operations. The following table presents the computation of basic and diluted earnings per common share for the periods indicated: Year Ended December 31, (dollars in thousands, except per share amounts) 2021 2020 2019 Basic Earnings Per Share: Net income $ 69,486 $ 6,623 $ 43,630 Weighted average shares outstanding 15,876,727 16,102,226 14,869,952 Basic earnings per common share $ 4.38 $ 0.41 $ 2.93 Diluted Earnings Per Share: Net income $ 69,486 $ 6,623 $ 43,630 Weighted average shares outstanding, included all dilutive potential shares 15,905,035 16,110,296 14,884,933 Diluted earnings per common share $ 4.37 $ 0.41 $ 2.93

Regulatory Capital Requirements

Regulatory Capital Requirements and Restrictions on Subsidiary Cash	12 Months Ended
	Dec. 31, 2021
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Regulatory Capital Requirements and Restrictions on Subsidiary Cash	Regulatory Capital Requirements and Restrictions on Subsidiary Cash Regulatory Capital and Reserve Requirement: The Company (on a consolidated basis) and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company's consolidated financial statements. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. The ability of the Company to pay dividends to its shareholders is dependent upon dividends paid by the Bank to the Company. The Bank is subject to certain statutory and regulatory restrictions on the amount of dividends it may pay. In addition, as previously disclosed, subsequent to December 31, 2008, the Bank’s board of directors adopted a capital policy requiring it to maintain a ratio of Tier 1 capital to total assets of at least 8% and a ratio of total capital to risk-based capital of at least 10%. Failure to maintain these ratios also could limit the ability of the Bank to pay dividends to the Company. Effective March 31, 2020, we elected the 5-year phase-in option allowed under the interim final rule (IFR) recently issued by the federal banking regulatory agencies that delays the estimated impact on regulatory capital stemming from the implementation of CECL. The IFR allows the add back of 100% of the capital effect from the day one CECL transition adjustment and 25% of the capital effect from subsequent increases in the allowance for credit losses through the two year period ending December 31, 2021. This cumulative amount will then be reduced from capital over the subsequent three-year period. As of December 31, 2021, the most recent notification from the FDIC categorized the Bank as “well capitalized” under the regulatory framework for prompt corrective action then in effect. There are no conditions or events since this date that management believes have changed the Bank’s category. In order to be a “well-capitalized” depository institution, a bank must maintain a Common Equity Tier 1 capital ratio of 6.5% or more; a Tier 1 capital ratio of 8% or more; a total capital ratio of 10% or more; and a leverage ratio of 5% or more. A capital conservation buffer of 2.5%, comprised of Common Equity Tier 1 capital, is also established above the regulatory minimum capital requirements. As of December 31, 2021 and December 31, 2020, the Bank was not required to maintain reserve balances in cash on hand or on deposit with Federal Reserve Banks, and therefore the total amount held in reserve for each of these as of periods was zero dollars. A comparison of the Company’s and the Bank’s capital with the corresponding minimum regulatory requirements in effect as of December 31, 2021 and December 31, 2020, is presented below: Actual For Capital Adequacy Purposes With Capital Conservation Buffer(1) To Be Well Capitalized Under Prompt Corrective Action Provisions (dollars in thousands) Amount Ratio Amount Ratio (1) Amount Ratio At December 31, 2021: Consolidated: Total capital/risk weighted assets $ 615,060 13.09 % $ 493,283 10.50 % N/A N/A Tier 1 capital/risk weighted assets 508,687 10.83 399,324 8.50 N/A N/A Common equity tier 1 capital/risk weighted assets 466,747 9.94 328,855 7.00 N/A N/A Tier 1 leverage capital/average assets 508,687 8.67 234,745 4.00 N/A N/A MidWest One Bank: Total capital/risk weighted assets $ 584,348 12.46 % $ 492,436 10.50 % $ 468,987 10.00 % Tier 1 capital/risk weighted assets 542,975 11.58 398,639 8.50 375,189 8.00 Common equity tier 1 capital/risk weighted assets 542,975 11.58 328,291 7.00 304,841 6.50 Tier 1 leverage capital/average assets 542,975 9.25 234,686 4.00 293,358 5.00 At December 31, 2020: Consolidated: Total capital/risk weighted assets $ 572,437 13.41 % $ 448,068 10.50 % N/A N/A Tier 1 capital/risk weighted assets 456,526 10.70 362,722 8.50 N/A N/A Common equity tier 1 capital/risk weighted assets 414,763 9.72 298,712 7.00 N/A N/A Tier 1 leverage capital/average assets 456,526 8.50 214,795 4.00 N/A N/A MidWest One Bank: Total capital/risk weighted assets $ 547,558 12.89 % $ 446,113 10.50 % $ 424,870 10.00 % Tier 1 capital/risk weighted assets 500,981 11.79 361,139 8.50 339,896 8.00 Common equity tier 1 capital/risk weighted assets 500,981 11.79 297,409 7.00 276,165 6.50 Tier 1 leverage capital/average assets 500,981 9.35 214,251 4.00 271,992 5.00 (1) Includes the capital conservation buffer of 2.50%. Subordinated Notes: The Company completed a private placement of $65.0 million aggregate principal amount of 5.75% fixed-to-floating rate subordinated notes on July 28, 2020. The subordinated notes are intended to qualify as Tier 2 capital for regulatory purposes. ATBancorp Subordinated Debenture Redemption: On May 31, 2021, the Company redeemed, in whole, $10.8 million of ATB Debentures. The amount of ATB Debentures qualifying as Tier 2 regulatory capital would have been phased-out completely starting in the second quarter of 2022. See Note 12. Long-Term Debt

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Credit-related financial instruments : The Bank is a party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit, commitments to sell loans, and standby letters of credit. These instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the balance sheets. The Bank uses the same credit policies in making commitments and conditional obligations as it does for on-balance-sheet instruments. The following table summarizes the Bank’s commitments as of the dates indicated: December 31, (in thousands) 2021 2020 Commitments to extend credit $ 1,014,397 $ 897,274 Commitments to sell loans 12,917 59,956 Standby letters of credit 16,342 34,212 Total $ 1,043,656 $ 991,442 The Bank’s exposure to credit loss in the event of nonperformance by the counterparty to the financial instrument for commitments to extend credit is represented by the contractual amount of those instruments. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Bank evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Bank upon extension of credit, is based on management’s credit evaluation of the party. Collateral held varies, but may include accounts receivable, crops, livestock, inventory, property and equipment, residential real estate and income-producing commercial properties. Commitments to sell loans are agreements to sell loans held for sale to third parties at an agreed upon price. Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements and, generally, have terms of one year or less. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. The Bank holds collateral, which may include accounts receivable, inventory, property, equipment and income-producing properties, that support those commitments, if deemed necessary. In the event the customer does not perform in accordance with the terms of the agreement with the third party, the Bank would be required to fund the commitment. The maximum potential amount of future payments the Bank could be required to make is represented by the contractual amount shown in the summary above. If the commitment is funded, the Bank would be entitled to seek recovery from the customer. Liability for Off-Balance Sheet Credit Losses : The Company records a liability for off-balance sheet credit losses through a charge to credit loss expense (or a reversal of credit loss expense) on the Company's consolidated statements of income and other liabilities on the Company's consolidated balance sheets. At December 31, 2021, the liability for off-balance-sheet credit losses totaled $4.0 million, whereas the total amount of the liability as of December 31, 2020 was $4.1 million. The total amount recorded in credit loss (benefit) expense for the year ended December 31, 2021 was a benefit of $0.1 million, while credit loss expense of $0.7 million was recorded for the year ended December 31, 2020. Litigation : In the normal course of business, the Company and its subsidiaries have been named, from time to time, as defendants in various legal actions. Certain of the actual or threatened legal actions may include claims for substantial compensatory and/or punitive damages or claims for indeterminate amounts of damages. Management, after consulting with legal counsel, is of the opinion that the ultimate liability, if any, resulting from these pending or threatened actions and proceedings will not have a material effect on the financial statements of the Company. Concentrations of credit risk : Substantially all of the Bank’s loans, commitments to extend credit and standby letters of credit have been granted to customers in the Bank’s market areas. Although the loan portfolio of the Bank is diversified, approximately 62% of the loans are real estate loans and approximately 8% are agriculturally related. The concentrations of credit by type of loan are set forth in Note 4. Loans Receivable and the Allowance for Credit Losses . Commitments to extend credit are primarily related to commercial loans and home equity loans. Standby letters of credit were granted primarily to commercial borrowers. Investments in securities issued by state and political subdivisions involve certain governmental entities

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Certain directors of the Company and certain principal officers are customers of, and have banking transactions with, the Bank in the ordinary course of business. Such indebtedness has been incurred on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with unrelated persons. The following is an analysis of the changes in the loans to related parties during the years ended December 31, 2021 and 2020: Year Ended December 31, (in thousands) 2021 2020 Balance, beginning $ 16,816 $ 19,249 Advances 2,979 6,823 Change due to collections or loans sold (5,211) (9,256) Balance, ending $ 14,584 $ 16,816 Available credit $ 8,488 $ 8,355 None of these loans are past due, nonaccrual or restructured to provide a reduction or deferral of interest or principal because of deterioration in the financial position of the borrower. Deposits from these related parties totaled $10.2 million and $8.8 million as of December 31, 2021 and December 31, 2020, respectively. Deposits from related parties are accepted subject to the same interest rates and terms as those from non-related parties.

Estimated Fair Value of Financi

Estimated Fair Value of Financial Instruments and Fair Value Measurements	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Estimated Fair Value of Financial Instruments and Fair Value Measurements	Estimated Fair Value of Financial Instruments and Fair Value Measurements Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There are three levels of inputs that may be used to measure fair values: • Level 1 – Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. • Level 2 – Significant other observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data. • Level 3 – Significant unobservable inputs that reflect a company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability. The Company uses fair value to measure certain assets and liabilities on a recurring basis, primarily available for sale debt securities, derivatives and mortgage servicing rights. For assets measured at the lower of cost or fair value, the fair value measurement criteria may or may not be met during a reporting period, and such measurements are therefore considered "nonrecurring" for purposes of disclosing the Company's fair value measurements. Fair value is used on a nonrecurring basis to adjust carrying values for collateral dependent individually analyzed loans and foreclosed assets. Recurring Basis The Company used the following methods and significant assumptions to estimate the fair value of each type of financial instrument: Investment Securities - The fair value for investment securities are determined by quoted market prices, if available (Level 1). The Company utilizes an independent pricing service to obtain the fair value of debt securities. Debt securities issued by the U.S. Treasury and other U.S. Government agencies and corporations, mortgage-backed securities, and collateralized mortgage obligations are priced utilizing industry-standard models that consider various assumptions, including time value, yield curves, volatility factors, prepayment speeds, default rates, loss severity, current market and contractual prices for the underlying financial instruments, as well as other relevant economic measures. Substantially all of these assumptions are observable in the marketplace, can be derived from observable data, or are supported by observable levels at which transactions are executed in the marketplace (Level 2). Municipal securities are valued using a type of matrix, or grid, pricing in which securities are benchmarked against the treasury rate based on credit rating (Level 2). Derivatives - Interest rate swaps are valued by using cash flow valuation techniques with observable market data inputs (Level 2). The Company has entered into collateral agreements with its swap dealers which entitle it to receive collateral to cover market values on derivatives which are in asset position, thus a credit risk adjustment on interest rate swaps is not warranted. RPAs are entered into by the Company with institutional counterparties, under which the Company assumes its pro-rata share of the credit exposure associated with a borrower’s performance related to interest rate derivative contracts. The fair value of RPAs is calculated by determining the total expected asset or liability exposure using observable inputs, such as yield curves and volatilities, of the derivatives to the borrowers and applying the borrowers’ credit spread to that exposure (Level 2). The fair values of the interest rate lock commitments and interest rate forward loan sales contracts are estimated using quoted or published market prices for similar instruments, adjusted for factors such as pull-through rate assumptions based on historical information, where appropriate. The pull-through rate assumptions are considered Level 3 valuation inputs and are significant to the interest rate lock commitments valuation; as such, the interest rate lock commitments are classified as Level 3. Mortgage Servicing Rights (MSR) - MSRs are recorded at fair value based on assumptions through a third-party valuation service. The valuation model incorporates assumptions that are observable in the marketplace and that market participants would use in estimating future net servicing income, such as servicing cost per loan, the discount rate, the escrow float rate, an inflation rate, ancillary income, prepayment speeds and default rates and losses (Level 2). The following table summarizes assets measured at fair value on a recurring basis as of December 31, 2021 and December 31, 2020 by level within the fair value hierarchy: Fair Value Measurement at December 31, 2021 Using (in thousands) Total Level 1 Level 2 Level 3 Assets: Available for sale debt securities: U.S. Government agencies and corporations $ 266 $ — $ 266 $ — State and political subdivisions 765,742 — 765,742 — Mortgage-backed securities 100,626 — 100,626 — Collateralized mortgage obligations 768,899 — 768,899 — Corporate debt securities 652,577 — 652,577 — Derivative assets 6,106 — 5,776 330 Mortgage servicing rights 6,532 — 6,532 — Liabilities: Derivative liabilities $ 6,741 $ — $ 6,741 $ — Fair Value Measurement at December 31, 2020 Using (in thousands) Total Level 1 Level 2 Level 3 Assets: Available for sale debt securities: U.S. Government agencies and corporations $ 361 $ — $ 361 $ — State and political subdivisions 628,346 — 628,346 — Mortgage-backed securities 94,018 — 94,018 — Collateralized mortgage obligations 565,836 — 565,836 — Corporate debt securities 368,820 — 368,820 — Derivative assets 10,796 — 10,796 — Mortgage servicing rights 5,137 — 5,137 — Liabilities: Derivative liabilities $ 13,267 $ — $ 13,267 $ — There were no transfers of assets between Level 3 and other levels of the fair value hierarchy during the years ended December 31, 2021 or December 31, 2020. Changes in the fair value of available for sale debt securities are included in other comprehensive income. The following table presents the valuation technique, significant unobservable inputs, and quantitative information about the unobservable inputs used for fair value measurements of the financial instruments held by the Company and categorized within Level 3 of the fair value hierarchy as of the dates indicated: Fair Value at (dollars in thousands) December 31, 2021 December 31, 2020 Valuation Techniques(s) Unobservable Input Range of Inputs Weighted Average Interest rate lock commitments $ 330 $ — Quoted or published market prices of similar instruments, adjusted for factors such as pull-through rate assumptions Pull-through rate 88 % - 100 % 88 % Nonrecurring Basis The Company used the following methods and significant assumptions to estimate the fair value of each type of financial instrument: Collateral Dependent Individually Analyzed Loans - Collateral dependent individually analyzed loans are valued based on the fair value of the collateral less estimated costs to sell. These estimates are based on the most recently available appraisals by qualified licensed appraisers with certain adjustment made based on the type of property, age of appraisal, current status of the property, and other related factors to estimate the current value of the collateral (Level 3). Foreclosed Assets, Net - Foreclosed assets are measured at fair value less costs to sell. These estimates are based on the most recently available appraisals by qualified licensed appraisers with certain adjustment made based on the type of property, age of appraisal, current status of the property, and other related factors to estimate the current value of the collateral (Level 3). The following table presents assets measured at fair value on a nonrecurring basis as of the dates indicated: Fair Value Measurement at December 31, 2021 Using (in thousands) Total Level 1 Level 2 Level 3 Collateral dependent individually analyzed loans $ 15,772 $ — $ — $ 15,772 Foreclosed assets, net 357 — — 357 Fair Value Measurement at December 31, 2020 Using (in thousands) Total Level 1 Level 2 Level 3 Collateral dependent individually analyzed loans $ 34,265 $ — $ — $ 34,265 Foreclosed assets, net 2,316 — — 2,316 The following presents the valuation technique(s), unobservable inputs, and quantitative information about the unobservable inputs used for fair value measurements of the financial instruments held by the Company and categorized within Level 3 of the fair value hierarchy as of the date indicated: Fair Value at (dollars in thousands) December 31, 2021 December 31, 2020 Valuation Techniques(s) Unobservable Input Range of Inputs Weighted Average Collateral dependent individually analyzed loans $ 15,772 $ 34,265 Fair value of collateral Valuation adjustments 7 % 55 % 30 % Foreclosed assets, net 357 2,316 Fair value of collateral Valuation adjustments 8 % 63 % 22 % Changes in assumptions or estimation methodologies may have a material effect on these estimated fair values. Other Fair Value Methods Cash and Cash Equivalents, Interest Receivable, Short-term Borrowings, and Finance Lease Payable - The carrying amounts of these financial instruments approximate their fair values. Loans Held for Sale - Loans held for sale are carried at the lower of cost or fair value, with fair value being based on binding contracts from third party investors (Level 2). The portfolio has historically consisted primarily of residential real estate loans. Loans Held for Investment, Net - The estimated fair value of loans, net, was performed using the income approach, with the market approach used for certain nonperforming loans, resulting in a Level 3 fair value classification. FHLB stock - Investments in FHLB stock are recorded at cost and measured for impairment quarterly. Ownership of FHLB stock is restricted to member banks and the securities do not have a readily determinable market value. Purchases and sales of these securities are at par value with the issuer. The fair value of investments in FHLB stock is equal to the carrying amount. Deposits - Deposits are carried at historical cost. The fair values of deposits with no stated maturity (defined as noninterest-bearing demand, interest checking, money market, and savings accounts) are equal to the amount payable on demand as of the balance sheet date and considered Level 1. The fair value of time deposits is based on the discounted value of contractual cash flows and considered Level 2. The discount rate is estimated using the rates currently offered for deposits of similar remaining maturities. FHLB Borrowings - Borrowings are carried at amortized cost. The fair value of FHLB borrowings is calculated by discounting scheduled cash flows through the maturity dates or call dates, if applicable, using estimated market discount rates that reflect current rates offered for borrowings with similar remaining maturities and characteristics and are considered Level 2. Junior Subordinated Notes Issued to Capital Trusts - Junior subordinated notes issued to capital trusts are carried at amortized cost. The fair value of these junior subordinated notes with variable rates is determined using a market discount rate on the expected cash flows and are considered Level 2. Subordinated Debentures - Subordinated debentures are carried at amortized cost. The fair value of subordinated debentures is based on discounted cash flows on current borrowing rates being offered for similar subordinated debenture deals and considered Level 2. The carrying amount and estimated fair value of financial instruments at December 31, 2021 and December 31, 2020 were as follows: December 31, 2021 (in thousands) Carrying Estimated Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 203,830 $ 203,830 $ 203,830 $ — $ — Debt securities available for sale 2,288,110 2,288,110 — 2,288,110 — Loans held for sale 12,917 12,970 — 12,970 — Loans held for investment, net 3,196,312 3,207,314 — — 3,207,314 Interest receivable 20,117 20,117 — 20,117 — FHLB stock 10,157 10,157 — 10,157 — Derivative assets 6,106 6,106 — 5,776 330 Financial liabilities: Noninterest bearing deposits 1,005,369 1,005,369 1,005,369 — — Interest bearing deposits 4,109,150 4,105,858 3,186,901 918,957 — Short-term borrowings 181,368 181,368 181,368 — — Finance leases payable 951 951 — 951 — FHLB borrowings 48,113 48,947 — 48,947 — Junior subordinated notes issued to capital trusts 41,940 35,545 — 35,545 — Subordinated debentures 63,875 68,207 — 68,207 — Derivative liabilities 6,741 6,741 — 6,741 — December 31, 2020 (in thousands) Carrying Estimated Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 82,659 $ 82,659 $ 82,659 $ — $ — Debt securities available for sale 1,657,381 1,657,381 — 1,657,381 — Loans held for sale 59,956 60,039 — 60,039 — Loans held for investment, net 3,426,723 3,469,515 — — 3,469,515 Interest receivable 21,706 21,706 — 21,706 — FHLB stock 13,784 13,784 — 13,784 — Derivative assets 10,796 10,796 — 10,796 — Financial liabilities: Noninterest bearing deposits 910,655 910,655 910,655 — — Interest bearing deposits 3,636,394 3,640,365 2,800,046 840,319 Short-term borrowings 230,789 230,789 230,789 — — Finance leases payable 1,096 1,096 — 1,096 — FHLB borrowings 91,198 93,380 — 93,380 Junior subordinated notes issued to capital trusts 41,763 33,986 — 33,986 Subordinated debentures 74,634 77,228 — 77,228 Derivative liabilities 13,267 13,267 — 13,267 —

Revenue Recognition

Revenue Recognition	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition Substantially all of the Company’s revenue is generated from contracts with customers. Topic 606 does not apply to revenue associated with financial instruments, including revenue from loans and securities. In addition, certain noninterest income streams such as fees associated with mortgage servicing rights, financial guarantees, derivatives, and certain credit card fees are also not in the scope of Topic 606. Noninterest revenue streams in-scope of Topic 606 are discussed below. Trust and Asset Management Trust and asset management income is primarily comprised of fees earned from the management and administration of trusts and other customer assets. The Company’s performance obligation is generally satisfied over time, and the resulting fees are recognized monthly, based upon the month-end market value of the assets under management and the applicable fee rate. Payment is generally received a few days after month end through a direct charge to customers’ accounts. The Company does not earn performance-based incentives. Optional services such as real estate sales and tax return preparation services are also available to existing trust and asset management customers. The Company’s performance obligation for these transactional-based services is generally satisfied, and related revenue recognized, at a point in time (i.e., as incurred). Payment is received shortly after services are rendered. Service Charges on Deposit Accounts Service charges on deposit accounts consist of account analysis fees (i.e., net fees earned on analyzed business and public checking accounts), monthly service fees, check orders, and other deposit account related fees. The Company’s performance obligation for account analysis fees and monthly service fees is generally satisfied, and the related revenue recognized, over the period in which the service is provided. Check orders and other deposit account related fees are largely transactional based, and therefore, the Company’s performance obligation is satisfied, and related revenue recognized, at a point in time. Payment for service charges on deposit accounts is primarily received immediately or in the following month through a direct charge to customers’ accounts. Fees, Exchange, and Other Service Charges Fees, exchange, and other service charges are primarily comprised of debit and credit card income, ATM fees, merchant services income, and other service charges. Debit and credit card income is primarily comprised of interchange fees earned whenever the Company’s debit and credit cards are processed through card payment networks such as Visa. ATM fees are primarily generated when a Company cardholder uses a non-Company ATM or a non-Company cardholder uses a Company ATM. Merchant services income mainly represents fees charged to merchants to process their debit and credit card transactions, in addition to account management fees. Other service charges include revenue from processing wire transfers, bill pay service, cashier’s checks, and other services. The Company’s performance obligation for fees, exchange, and other service charges are largely satisfied, and related revenue recognized, when the services are rendered or upon completion. Payment is typically received immediately or in the following month. Gains/Losses on Sales of Foreclosed Assets Gain or loss from the sale of foreclosed assets occurs when control of the property transfers to the buyer, which generally occurs at the time of an executed deed. When the Company finances the sale of foreclosed assets to the buyer, the Company assesses whether the buyer is committed to perform their obligations under the contract and whether collectability of the transaction price is probable. Once these criteria are met, the foreclosed assets are derecognized and the gain or loss on sale is recorded upon the transfer of control of the property to the buyer. In determining the gain or loss on the sale, the Company adjusts the transaction price and related gain (loss) on sale if a significant financing component is present. Foreclosed asset sales for the years ended December 31, 2021 and December 31, 2020 were not financed by the Bank. Other Other noninterest income consists of other recurring revenue streams such as safe deposit box rental fees, and other miscellaneous revenue streams. Safe deposit box rental fees are charged to the customer on an annual basis and recognized upon receipt of payment. The Company determined that since rentals and renewals occur fairly consistently over time, revenue is recognized on a basis consistent with the duration of the performance obligation. Contract Balances A contract asset balance occurs when an entity performs a service for a customer before the customer pays consideration (resulting in a contract receivable) or before payment is due (resulting in a contract asset). A contract liability balance is an entity’s obligation to transfer a service to a customer for which the entity has already received payment (or payment is due) from the customer. The Company’s noninterest revenue streams are largely based on transactional activity, or standard month-end revenue accruals such as asset management fees based on month-end market values. Consideration is often received immediately or shortly after the Company satisfies its performance obligation and revenue is recognized. The Company does not typically enter into long-term revenue contracts with customers, and therefore, does not experience significant contract balances. As of December 31, 2021 and December 31, 2020, the Company did not have any significant contract balances. Contract Acquisition Costs In connection with the adoption of Topic 606, an entity is required to capitalize, and subsequently amortize into expense, certain incremental costs of obtaining a contract with a customer if these costs are expected to be recovered. The incremental costs of obtaining a contract are those costs that an entity incurs to obtain a contract with a customer that it would not have incurred if the contract had not been obtained (for example, sales commission). The Company utilizes the practical expedient which allows entities to immediately expense contract acquisition costs when the asset that would have resulted from capitalizing these costs would have been amortized in one year or less. Upon adoption of Topic 606, the Company did not capitalize any contract acquisition cost.

Leases

Leases	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	LeasesA lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. Substantially all of the leases in which the Company is the lessee are comprised of real estate property for banking offices and office space with terms extending through 2025. We do not have any material subleased properties. Substantially all of our leases are classified as operating leases, with the Company only holding one existing finance lease for a banking office location with a lease term through 2025. The Company made a policy election to exclude the recognition requirements of Topic 842 to all classes of leases with original terms of 12 months or less. Instead, the short-term lease payments are recognized in income or expense on a straight-line basis over the lease term. If at lease inception, the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the ROU asset and lease liability. Supplemental balance sheet information related to leases was as follows: (dollars in thousands) Classification December 31, 2021 December 31, 2020 Operating lease right-of-use assets Other assets $ 2,840 $ 3,613 Finance lease right-of-use asset Premises and equipment, net 446 542 Total right-of-use assets $ 3,286 $ 4,155 Operating lease liability Other liabilities $ 3,778 $ 4,583 Finance lease liability Long-term debt 951 1,096 Total lease liabilities $ 4,729 $ 5,679 Weighted-average remaining lease term Operating leases 9.13 years 8.82 years Finance lease 4.67 years 5.67 years Weighted-average discount rate Operating leases 4.13 % 3.92 % Finance lease 8.89 % 8.89 % The following table represents lease costs and other lease information. As the Company elected, for all classes of underlying assets, not to separate lease and non-lease components and instead to account for them as a single lease component, the variable lease cost primarily represents variable payments such as common area maintenance and utilities. Years Ended December 31, (in thousands) 2021 2020 2019 Lease Costs Operating lease cost $ 1,194 $ 1,236 $ 1,068 Variable lease cost 107 241 148 Interest on lease liabilities (1) 90 102 113 Amortization of right-of-use assets 95 96 96 Net lease cost $ 1,486 $ 1,675 $ 1,425 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,177 $ 1,146 $ 989 Operating cash flows from finance lease 90 102 113 Finance cash flows from finance lease 145 128 113 Supplemental non-cash information on lease liabilities: Right-of-use assets obtained in exchange for new operating lease liabilities 232 132 6,250 (1) Included in long-term debt interest expense in the Company’s consolidated statements of income. All other lease costs in this table are included in occupancy expense of premises, net. Future minimum payments for finance leases and operating leases with initial or remaining terms of one year or more as of December 31, 2021 were as follows: (in thousands) Finance Leases Operating Leases Twelve Months Ended: December 31, 2022 $ 240 $ 1,060 December 31, 2023 245 947 December 31, 2024 250 717 December 31, 2025 255 247 December 31, 2026 171 153 Thereafter — 1,820 Total undiscounted lease payment $ 1,161 $ 4,944 Amounts representing interest (210) (1,166) Lease liability $ 951 $ 3,778
Leases	LeasesA lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. Substantially all of the leases in which the Company is the lessee are comprised of real estate property for banking offices and office space with terms extending through 2025. We do not have any material subleased properties. Substantially all of our leases are classified as operating leases, with the Company only holding one existing finance lease for a banking office location with a lease term through 2025. The Company made a policy election to exclude the recognition requirements of Topic 842 to all classes of leases with original terms of 12 months or less. Instead, the short-term lease payments are recognized in income or expense on a straight-line basis over the lease term. If at lease inception, the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the ROU asset and lease liability. Supplemental balance sheet information related to leases was as follows: (dollars in thousands) Classification December 31, 2021 December 31, 2020 Operating lease right-of-use assets Other assets $ 2,840 $ 3,613 Finance lease right-of-use asset Premises and equipment, net 446 542 Total right-of-use assets $ 3,286 $ 4,155 Operating lease liability Other liabilities $ 3,778 $ 4,583 Finance lease liability Long-term debt 951 1,096 Total lease liabilities $ 4,729 $ 5,679 Weighted-average remaining lease term Operating leases 9.13 years 8.82 years Finance lease 4.67 years 5.67 years Weighted-average discount rate Operating leases 4.13 % 3.92 % Finance lease 8.89 % 8.89 % The following table represents lease costs and other lease information. As the Company elected, for all classes of underlying assets, not to separate lease and non-lease components and instead to account for them as a single lease component, the variable lease cost primarily represents variable payments such as common area maintenance and utilities. Years Ended December 31, (in thousands) 2021 2020 2019 Lease Costs Operating lease cost $ 1,194 $ 1,236 $ 1,068 Variable lease cost 107 241 148 Interest on lease liabilities (1) 90 102 113 Amortization of right-of-use assets 95 96 96 Net lease cost $ 1,486 $ 1,675 $ 1,425 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,177 $ 1,146 $ 989 Operating cash flows from finance lease 90 102 113 Finance cash flows from finance lease 145 128 113 Supplemental non-cash information on lease liabilities: Right-of-use assets obtained in exchange for new operating lease liabilities 232 132 6,250 (1) Included in long-term debt interest expense in the Company’s consolidated statements of income. All other lease costs in this table are included in occupancy expense of premises, net. Future minimum payments for finance leases and operating leases with initial or remaining terms of one year or more as of December 31, 2021 were as follows: (in thousands) Finance Leases Operating Leases Twelve Months Ended: December 31, 2022 $ 240 $ 1,060 December 31, 2023 245 947 December 31, 2024 250 717 December 31, 2025 255 247 December 31, 2026 171 153 Thereafter — 1,820 Total undiscounted lease payment $ 1,161 $ 4,944 Amounts representing interest (210) (1,166) Lease liability $ 951 $ 3,778

Operating Segments

Operating Segments	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Operating Segments	Operating SegmentsThe Company’s activities are considered to be one reportable segment for financial reporting purposes. The Company is engaged in the business of commercial and retail banking and trust and investment management services with operations throughout central and eastern Iowa, the Minneapolis/St. Paul metropolitan area of Minnesota, southwestern Wisconsin, Naples and Fort Myers Florida, and Denver, Colorado. Substantially all income is derived from a diverse base of commercial, mortgage and retail lending activities, and investments.

Parent Company Only Financial I

Parent Company Only Financial Information	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
Parent Company Only Financial Information	Parent Company Only Financial Information The following are condensed balance sheets of MidWest One Financial Group, Inc. as of December 31, 2021 and December 31, 2020 (parent company only): As of December 31, (in thousands) 2021 2020 Balance Sheets Assets Cash $ 29,869 $ 25,078 Investment in subsidiaries 603,703 601,467 Income tax receivable — 499 Bank-owned life insurance — 5,252 Other assets 1,882 1,857 Total assets $ 635,454 $ 634,153 Liabilities and Shareholders’ Equity Long-term debt $ 105,815 $ 116,397 Income taxes payable 67 — Deferred income taxes 165 343 Other liabilities 1,932 2,163 Total liabilities 107,979 118,903 Shareholders’ equity Capital stock, preferred — — Capital stock, common 16,581 16,581 Additional paid-in capital 300,940 300,137 Retained earnings 243,365 188,191 Treasury stock (24,546) (14,251) Accumulated other comprehensive income (8,865) 24,592 Total shareholders’ equity 527,475 515,250 Total liabilities and shareholders’ equity $ 635,454 $ 634,153 The following are condensed statements of income of MidWest One Financial Group, Inc. for the years ended December 31, 2021, 2020, and 2019 (parent company only): Year Ended December 31, (in thousands) 2021 2020 2019 Statements of Income Dividends received from subsidiaries $ 40,750 $ 3,500 $ 15,000 Interest income and dividends on investment securities 67 88 84 Investment securities gains (losses) 118 (136) 47 Interest on debt (5,306) (4,471) (3,439) Bank-owned life insurance income 62 124 130 Income from MidWest One Insurance Services, Inc. — — 943 Operating expenses (3,662) (2,723) (4,130) Income (loss) before income taxes and equity in subsidiaries’ undistributed income 32,029 (3,618) 8,635 Income tax benefit (1,764) (1,495) (1,394) Income (loss) before equity in subsidiaries’ undistributed income 33,793 (2,123) 10,029 Equity in subsidiaries’ undistributed income 35,693 8,746 33,601 Net income $ 69,486 $ 6,623 $ 43,630 The following are condensed statements of cash flows of MidWest One Financial Group, Inc. for the years ended December 31, 2021, 2020, and 2019 (parent company only): Year Ended December 31, (in thousands) 2021 2020 2019 Statements of Cash Flows Cash flows from operating activities: Net income $ 69,486 $ 6,623 $ 43,630 Adjustments to reconcile net income to net cash provided by operating activities: Undistributed income of subsidiaries, net of dividends and distributions (35,693) (8,746) (33,601) Amortization 261 215 134 Decrease in deferred income taxes, net (355) (49) (43) Share-based compensation 2,153 1,380 1,156 Gain on sale of assets of MidWest One Insurance Services, Inc. — — (1,076) Increase in cash surrender value of bank-owned life insurance — (125) (128) Change in: Other assets 476 745 (403) Other liabilities (55) 1,674 (4) Net cash provided by operating activities $ 36,273 $ 1,717 $ 9,665 Cash flows from investing activities Proceeds from sales of debt securities available for sale $ 70 $ — $ 43 Purchase of debt securities available for sale (3) (9) (9) Proceeds from intercompany sale of bank-owned life insurance 5,252 — — Proceeds from sale of assets of MidWest One Insurance Services, Inc. — — 1,175 Cash and earnings transferred in dissolution of MidWest One Insurance Services, Inc. — — 631 Proceeds from sale of premises and equipment — 210 — Net cash paid in business acquisition — — (18,624) Net cash provided by (used in) investing activities $ 5,319 $ 201 $ (16,784) Cash flows from financing activities: Proceeds from issuance of subordinated debt $ — $ 65,000 $ — Payments of subordinated debt issuance costs (9) (1,303) — Redemption of subordinated debentures (10,835) — — Proceeds from other long-term debt — — 35,000 Payments of other long-term debt — (32,250) (10,250) Taxes paid relating to the release/lapse of restriction on RSUs (121) (149) (103) Dividends paid (14,282) (14,175) (11,476) Payments of stock issuance costs — — (323) Repurchase of common stock (11,554) (4,624) (4,679) Net cash (used in) provided by financing activities $ (36,801) $ 12,499 $ 8,169 Net increase in cash $ 4,791 $ 14,417 $ 1,050 Cash Balance: Beginning of period 25,078 10,661 9,611 Ending balance $ 29,869 $ 25,078 $ 10,661

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsManagement evaluated subsequent events through the date the consolidated financial statements were issued. Events or transactions occurring after December 31, 2021, but prior to the date the consolidated financial statements were issued, that provided additional evidence about conditions that existed at December 31, 2021 have been recognized in the consolidated financial statements for the period ended December 31, 2021. Events or transactions that provided evidence about conditions that did not exist at December 31, 2021, but arose before the consolidated financial statements were issued, have not been recognized in the consolidated financial statements for the period ended December 31, 2021. On January 1, 2022, the Company transferred, at fair value, $1.25 billion of mortgage-backed securities, collateralized mortgage obligations, and state and political subdivisions from the available for sale classification to the held to maturity classification. The net unrealized after tax loss of $11.5 million remained in accumulated other comprehensive loss and will be amortized over the remaining life of the securities. No gains or losses were recognized at the time of the transfer. On January 25, 2022, the board of directors of the Company declared a cash dividend of $0.2375 per share payable on March 15, 2022 to shareholders of record as of the close of business on March 1, 2022. Pursuant to the Company’s share repurchase program approved on June 22, 2021, the Company has purchased 7,500 shares of common stock subsequent to December 31, 2021 and through March 8, 2022 for a total cost of $0.2 million inclusive of transaction costs, leaving $5.5 million remaining available under the program.

Quarterly Results of Operations

Quarterly Results of Operations (unaudited)	12 Months Ended
	Dec. 31, 2021
Quarterly Financial Information Disclosure [Abstract]
Quarterly Results of Operations (unaudited)	Quarterly Results of Operations (unaudited) Three Months Ended December 31 September 30 June 30 March 31 (in thousands, except per share amounts) 2021 Interest income $ 43,556 $ 45,219 $ 43,787 $ 44,204 Interest expense 4,737 4,879 5,282 5,587 Net interest income 38,819 40,340 38,505 38,617 Credit loss expense (benefit) 622 (1,080) (2,144) (4,734) Noninterest income 11,229 9,182 10,218 11,824 Noninterest expense 30,444 29,778 28,670 27,700 Income before income taxes 18,982 20,824 22,197 27,475 Income tax expense 4,726 4,513 4,926 5,827 Net income $ 14,256 $ 16,311 $ 17,271 $ 21,648 Earnings per common share Basic $ 0.91 $ 1.03 $ 1.08 $ 1.35 Diluted $ 0.91 $ 1.03 $ 1.08 $ 1.35 2020 Interest income $ 45,470 $ 45,154 $ 46,758 $ 47,405 Interest expense 6,433 7,345 8,046 9,999 Net interest income 39,037 37,809 38,712 37,406 Credit loss (benefit) expense (3,041) 4,992 4,685 21,733 Noninterest income 10,626 9,570 8,269 10,155 Noninterest expense 31,915 59,939 28,038 30,001 Income (loss) before income tax expense (benefit) 20,789 (17,552) 14,258 (4,173) Income tax expense (benefit) 4,079 2,272 2,546 (2,198) Net income (loss) $ 16,710 $ (19,824) $ 11,712 $ (1,975) Earnings (loss) per common share Basic $ 1.04 $ (1.23) $ 0.73 $ (0.12) Diluted $ 1.04 $ (1.23) $ 0.73 $ (0.12)

Nature of Business and Signif_2

Nature of Business and Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounting estimates	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect: (1) the reported amount of assets and liabilities, (2) the disclosure of contingent assets and liabilities at the date of the financial statements, and (3) the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Certain significant estimates : The allowance for credit losses, fair value of assets acquired and liabilities assumed in a business combination, and the annual impairment testing of goodwill and other intangible assets involve certain significant estimates made by management. These estimates are reviewed by management routinely, and it is reasonably possible that circumstances that exist may change in the near-term future and that the effect could be material to the consolidated financial statements.
Principles of consolidation	The consolidated financial statements include the accounts of MidWest One Financial Group, Inc., a bank holding company, and its wholly-owned subsidiary MidWest One Bank, which is a state chartered bank whose primary federal regulator is the FDIC, and MidWest One Insurance Services, Inc, until the sale of substantially all of its assets on June 30, 2019 and subsequent dissolution effective December 31, 2019. All significant inter-company accounts and transactions have been eliminated in consolidation. Certain reclassifications have been made to prior periods’ consolidated financial statements to present them on a basis comparable with the current period’s consolidated financial statements. Trust assets, other than cash deposits held by the Bank in a fiduciary or agency capacity for its customers, are not included in the accompanying consolidated financial statements because such accounts are not assets of the Bank.
Presentation of cash flows	For purposes of reporting cash flows, cash and due from banks includes cash on hand, amounts due from banks, and federal funds sold. Cash flows from loans, deposits, and short-term borrowings are reported net. Cash receipts and cash payments resulting from originations and sales of loans held for sale are classified as operating cash flows on a gross basis in the consolidated statements of cash flows.The nature of the Company’s business requires that it maintain amounts due from banks that, at times, may exceed federally insured limits. In the opinion of management, no material risk of loss exists due to the various correspondent banks’ financial condition and the fact that they are well capitalized.
Investment securities	Debt securities that the Company has the positive intent and ability to hold to maturity are classified as held to maturity and recorded at amortized cost. As of December 31, 2021 and December 31, 2020, the Company held no debt securities classified as held to maturity. Debt securities not classified as held to maturity are classified as available for sale and recorded at fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income. The Company employs valuation techniques that utilize observable inputs when those inputs are available. These observable inputs reflect assumptions market participants would use in pricing the security, developed based on market data obtained from sources independent of the Company. When such information is not available, the Company employs valuation techniques which utilize unobservable inputs, or those which reflect the Company’s own assumptions about assumptions that market participants would use, based on the best information available in the circumstances. These valuation methods typically involve cash flow and other financial modeling techniques. Changes in underlying factors, assumptions, estimates, or other inputs to the valuation techniques could have a material impact on the Company’s future financial condition and results of operations. Fair value measurements are required to be classified as Level 1 (quoted prices), Level 2 (based on observable inputs) or Level 3 (based on unobservable inputs) discussed in more detail in Note 20. Estimated Fair Value of Financial Instruments and Fair Value Measurements to the consolidated financial statements. Available for sale debt securities are recorded at fair value. Realized gain or losses on sales of available for sale debt securities are included in earnings. Available for sale debt securities with unrealized gains are excluded from earnings and included in other comprehensive income as a separate component of shareholders’ equity, net of tax. When the fair value of an available for sale debt security falls below the amortized cost basis, it is evaluated to determine if any of the decline in value is attributable to credit loss. Decreases in fair value attributable to credit loss would be recorded directly to earnings with a corresponding allowance for credit losses, limited by the amount that the fair value is less than the amortized cost basis. If the credit quality subsequently improves the allowance would be reversed up to a maximum of the previously recorded credit losses. If the Company intends to sell an impaired available for sale debt security, or if it is more likely than not that the Company will be required to sell the security prior to recovering the amortized cost basis, the entire fair value adjustment would be immediately recognized in earnings with no corresponding allowance for credit losses. Accrued interest receivable is excluded from the estimate of credit losses.
Loans	Loans are stated at the principal amount outstanding, net of purchase premiums, purchase discounts and net deferred loan fees. Net deferred loan fees include nonrefundable loan origination fees less direct loan origination costs. Net deferred loan fees, purchase premiums and purchase discounts are amortized into interest income using either the interest method or straight-line method over the terms of the loans, adjusted for actual prepayments. The interest method is used for all loans except revolving loans, for which the straight-line method is used. Interest on loans is credited to income as earned based on the principal amount outstanding. The accrual of interest on agricultural, commercial, commercial real estate, and consumer loan segments is discontinued at the time the loan is 90 days past due, and residential real estate loan segments at 120 days past due, unless the credit is well secured and in process of collection. Credit card loans and other personal loans are typically charged off no later than 180 days past due. Past due status is based on contractual terms of the loan. In all cases, loans are placed on nonaccrual or charged off at an earlier date, if collection of principal or interest is considered doubtful. All interest accrued but not collected for loans that are placed on nonaccrual or charged off is reversed against interest income. The interest on these loans is accounted for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. The Company requires a loan to be charged-off, in whole or in part, as soon as it becomes apparent that some loss will be incurred, or when its collectability is sufficiently questionable that it no longer is considered a bankable asset. The primary considerations when determining if and how much of a loan should be charged-off are as follows: (1) the potential for future cash flows; (2) the value of any collateral; and (3) the strength of any co-makers or guarantors. The risk characteristics of each loan portfolio segment are as follows: Agricultural - Agricultural loans, most of which are secured by crops, livestock, and machinery, are provided to finance capital improvements and farm operations as well as acquisitions of livestock and machinery. The ability of the borrower to repay may be affected by many factors outside of the borrower’s control including adverse weather conditions, loss of livestock due to disease or other factors, declines in market prices for agricultural products and the impact of government regulations. The ultimate repayment of agricultural loans is dependent upon the profitable operation or management of the agricultural entity. Collateral for these loans generally includes accounts receivable, inventory, equipment and real estate. However, depending on the overall financial condition of the borrower, some loans are made on an unsecured basis. The collateral securing these loans may depreciate over time, may be difficult to appraise and may fluctuate in value based on the success of the business. Commercial and Industrial - Commercial and industrial loans are primarily made based on the reported cash flow of the borrower and secondarily on the underlying collateral provided by the borrower. The collateral support provided by the borrower for most of these loans and the probability of repayment are based on the liquidation of the pledged collateral and enforcement of a personal guarantee, if any exists. The primary repayment risks of commercial and industrial loans are that the cash flows of the borrower may be unpredictable, and the collateral securing these loans may fluctuate in value. The size of the loans the Company can offer to commercial customers is less than the size of the loans that competitors with larger lending limits can offer. This may limit the Company’s ability to establish relationships with the largest businesses in the areas in which the Company operates. As a result, the Company may assume greater lending risks than financial institutions that have a lesser concentration of such loans and tend to make loans to larger businesses. Collateral for these loans generally includes accounts receivable, inventory, equipment and real estate. However, depending on the overall financial condition of the borrower, some loans are made on an unsecured basis. The collateral securing these loans may depreciate over time, may be difficult to appraise and may fluctuate in value based on the success of the business. In addition, a decline in the U.S. economy could harm or continue to harm the businesses of the Company’s commercial and industrial customers and reduce the value of the collateral securing these loans. Commercial Real Estate - The Company offers mortgage loans to commercial and agricultural customers for the acquisition of real estate used in their businesses, such as offices, warehouses and production facilities, and to real estate investors for the acquisition of apartment buildings, retail centers, office buildings and other commercial buildings. The market value of real estate securing commercial real estate loans can fluctuate significantly in a short period of time as a result of market conditions in the geographic area in which the real estate is located. Adverse developments affecting real estate values in one or more of the Company’s markets could increase the credit risk associated with its loan portfolio. Additionally, real estate lending typically involves higher loan principal amounts than other loans, and the repayment of the loans generally is dependent, in large part, on sufficient income from the properties securing the loans to cover operating expenses and debt service. Economic events or governmental regulations outside of the Company’s control or that of the borrower could negatively impact the future cash flow and market values of the affected properties. Residential Real Estate - The Company generally retains short-term residential mortgage loans that are originated for its own portfolio but sells most long-term loans to other parties while retaining servicing rights on the majority of those loans. The market value of real estate securing residential real estate loans can fluctuate as a result of market conditions in the geographic area in which the real estate is located. Adverse developments affecting real estate values in one or more of the Company’s markets could increase the credit risk associated with its loan portfolio. Additionally, real estate lending typically involves higher loan principal amounts than other loans, and the repayment of the loans generally is dependent, in large part, on the borrower’s continuing financial stability, and is therefore more likely to be affected by adverse personal circumstances. Consumer - Consumer loans typically have shorter terms, lower balances, higher yields and higher risks of default than real estate-related loans. Consumer loan collections are dependent on the borrower’s continuing financial stability, and are therefore more likely to be affected by adverse personal circumstances. Collateral for these loans generally includes automobiles, boats, recreational vehicles, mobile homes, and real estate. However, depending on the overall financial condition of the borrower, some loans are made on an unsecured basis. The collateral securing these loans may depreciate over time, may be difficult to recover and may fluctuate in value based on condition. In addition, a decline in the United States economy could result in reduced employment, impacting the ability of customers to repay their obligations. TDR : TDRs exist when the Company, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession (either imposed by court order, law, or agreement between the borrower and the Company) to the borrower that it would not otherwise consider. The Company attempts to maximize its recovery of the balances of the loans through these various concessionary restructurings. All loans deemed TDR are considered impaired. The following factors are potential indicators that a concession has been granted (one or multiple items may be present): • The borrower receives a reduction of the stated interest rate for the remaining original life of the debt. • The borrower receives an extension of the maturity date or dates at a stated interest rate lower than the current market interest rate for new debt with similar risk characteristics. • The borrower receives a reduction of the face amount or maturity amount of the debt as stated in the instrument or other agreement. • The borrower receives a deferral of required payments (principal and/or interest). • The borrower receives a reduction of the accrued interest. Guidance on Non-TDR Loan Modifications due to COVID-19 : Section 4013 of the CARES Act, “Temporary Relief From Troubled Debt Restructurings,” as extended by the CAA, allowed financial institutions the option to temporarily suspend certain requirements under GAAP related to TDRs for a limited period of time during the COVID-19 pandemic. Under Section 4013 of the CARES Act, loan modifications that qualified for such suspension were those where the borrower was not more than 30 days past due as of December 31, 2019. In addition, the loan modification that was made in response to the COVID-19 pandemic had to include a deferral or delay in the payment of principal or interest, or change in the interest rate on the loan. In March 2020, various regulatory agencies, including the FRB and the FDIC, issued an interagency statement that was effective immediately, on loan modifications and reporting for financial institutions that worked with customers affected by COVID-19. The agencies confirmed with the staff of the FASB that short-term modifications that were made on a good faith basis in response to COVID-19 to borrowers who were current prior to any relief, were not to be considered TDRs. This included short-term (e.g., six months) modifications, such as payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment that were insignificant. Borrowers considered current were those that were less than 30 days past due on their contractual payments at the time a modification program was implemented. The relief related to TDRs was extended by the CAA, which was signed into law on December 27, 2020. As part of the CAA, relief continued until the earlier of 60 days after the date the COVID-19 national emergency came to an end or January 1, 2022. This program has since ended and no additional deferrals are being granted on loans.
Loans held-for-sale	Loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or estimated fair value, as determined by aggregate outstanding commitments from investors or current investor yield requirements. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. As of December 31, 2021, loans held for sale were $12.9 million.Mortgage loans held for sale are generally sold with the mortgage servicing rights retained. Gains or losses on sales of mortgage loans are recognized based on the difference between the selling price plus the value of servicing rights, less the carrying value of the related mortgage loans sold.
Allowance for credit losses related to loans held for investment	Allowance for credit losses related to loans held for investment: Under the current expected credit loss model, the allowance for credit losses is a valuation account estimated at each balance sheet date and deducted from the amortized cost basis of loans held for investment to present the net amount expected to be collected. The Company estimates the ACL based on the underlying assets’ amortized cost basis, which is the amount at which the financing receivable is originated or acquired, adjusted for collection of cash and charge-offs, as well as applicable accretion or amortization of premium, discount, and net deferred fees or costs. In the event that collection of principal becomes uncertain, the Company has policies in place to reverse accrued interest in a timely manner. Therefore, the Company has made a policy election to exclude accrued interest from the measurement of ACL. Expected credit losses are reflected in the allowance for credit losses through a charge to credit loss expense. When the Company deems all or a portion of a financial asset to be uncollectible, the appropriate amount is written off and the ACL is reduced by the same amount. The Company applies judgment to determine when a financial asset is deemed uncollectible; however, generally speaking, an asset will be considered uncollectible no later than when all efforts at collection have been exhausted. Subsequent recoveries, if any, are credited to the ACL when received. The Company measures expected credit losses of financial assets on a collective (pool) basis when the financial assets share similar risk characteristics. Depending on the nature of the pool of financial assets with similar risk characteristics, the Company uses a DCF method or a loss-rate method to estimate expected credit losses. The Company’s methodologies for estimating the ACL consider available relevant information about the collectability of cash flows, including information about past events, current conditions, and reasonable and supportable forecasts. The methodologies apply historical loss information, adjusted for asset-specific characteristics, economic conditions at the measurement date, and forecasts about future economic conditions expected to exist through the contractual lives of the financial assets that are reasonable and supportable, to the identified pools of financial assets with similar risk characteristics for which the historical loss experience was observed. The Company’s economic forecast assumptions revert over four quarters to historical loss driver information on a straight-line basis after four quarters. Discounted Cash Flow Method The Company uses the DCF method to estimate expected credit losses for the agricultural, commercial and industrial, CRE - construction and development, CRE - farmland, CRE - multifamily, CRE - other, RRE - owner-occupied one-to-four family first liens, RRE - nonowner-occupied one-to-four family first liens, RRE - one-to-four family junior liens, and consumer loan pools. For each of these pools, the Company generates cash flow projections at the instrument level wherein payment expectations are adjusted for estimated prepayment speed, curtailments, time to recovery, probability of default, and loss given default. The modeling of expected prepayment speeds, curtailment rates, and time to recovery are based on historical internal data. The Company uses regression analysis of historical internal and peer data to determine which variables are best suited to be economic variables utilized when modeling lifetime probability of default and loss given default. This analysis also determines how expected probability of default and loss given default will react to forecasted levels of the economic variables. For the loan pools utilizing the DCF method, management utilizes one or multiple of the following economic variables: Midwest unemployment, national retail sales, CRE index, US rental vacancy rate, US gross domestic product, and HPI. For all DCF models, management has determined that four quarters represents a reasonable and supportable forecast period and reverts back to a historical loss rate over four quarters on a straight-line basis. Management leverages economic projections from a reputable and independent third party to inform its loss driver forecasts over the four quarter forecast period. Other internal and external indicators of economic forecasts are also considered by management when developing the forecast metrics. The combination of adjustments for credit expectations (default and loss) and timing expectations (prepayment, curtailment, and time to recovery) produces an expected cash flow stream at the instrument level. Instrument effective yield is calculated, net of the impacts of prepayment assumptions, and the instrument expected cash flows are then discounted at that effective yield to produce an instrument-level net present value of expected cash flows (“NPV”). An ACL is established for the difference between the instrument’s NPV and amortized cost basis. In addition, management utilizes qualitative factors to adjust the calculated ACL as appropriate. Qualitative factors are based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions. Loss-Rate Method The Company uses a loss-rate method to estimate expected credit losses for the credit card and overdraft pools. For each of these pools, the Company applies an expected loss ratio based on internal and peer historical losses, adjusted as appropriate for qualitative factors. Qualitative loss factors are based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions. Collateral Dependent Financial Assets Loans that do not share risk characteristics are evaluated on an individual basis. For collateral dependent financial assets where the Company has determined that foreclosure of the collateral is probable, or where the borrower is experiencing financial difficulty and the Company expects repayment of the financial asset to be provided substantially through the operation or sale of the collateral, the ACL is measured based on the difference between the fair value of the collateral and the amortized cost basis of the asset as of the measurement date. When repayment is expected to be from the operation of the collateral, expected credit losses are calculated as the amount by which the amortized cost basis of the financial asset exceeds the present value of expected cash flows from the operation of the collateral. When repayment is expected to be from the sale of the collateral, expected credit losses are calculated as the amount by which the amortized cost basis of the financial asset exceeds the fair value of the underlying collateral less estimated cost to sell. The ACL may be zero if the fair value of the collateral at the measurement date exceeds the amortized cost basis of the financial asset. The Company’s estimate of the ACL reflects losses expected over the contractual life of the assets, adjusted for estimated prepayments or curtailments. The contractual term does not consider extensions, renewals or modifications unless the Company has identified an expected TDR. A loan that has been modified or renewed is considered a TDR when two conditions are met: 1) the borrower is experiencing financial difficulty and 2) concessions are made for the borrower's benefit that would not otherwise be considered for a borrower or transaction with similar credit risk characteristics. The Company’s ACL reflects all effects of a TDR when an individual asset is specifically identified as a reasonably expected TDR. The Company has determined that a TDR is reasonably expected no later than the point when the lender concludes that modification is the best course of action and it is at least reasonably possible that the troubled borrower will accept some form of concession from the lender to avoid a default. Reasonably expected TDRs and executed non-performing TDRs are evaluated individually to determine the required ACL. TDRs performing in accordance with their modified contractual terms for a reasonable period of time may be included in the Company’s existing pools based on the underlying risk characteristics of the loan to measure the ACL. Liability for Off-Balance Sheet Credit Losses: Financial instruments include off-balance sheet credit losses, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for off-balance sheet loan commitments is represented by the contractual amount of those instruments. Such financial instruments are recorded when they are funded.
Transfers of financial assets	Revenue from the origination and sale of loans in the secondary market is recognized upon the transfer of financial assets and accounted for as sales when control over the assets has been surrendered. The Company also sells participation interests in some large loans originated to non-affiliated entities. Control over transferred assets is deemed to be surrendered when: (1) the assets have been isolated from the Company; (2) the transferee has the right to pledge or exchange the assets it received and no condition both constrains the transferee from taking advantage of its right to pledge or exchange and provides more than a trivial benefit to the transferor; and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity or the ability to unilaterally cause the holder to return specific assets.
Credit related financial instruments	In the ordinary course of business, the Company has entered into commitments to extend credit, including commitments under credit card arrangements, commitments to sell loans, commercial letters of credit and standby letters of credit. Such financial instruments are recorded when they are funded.
Derivatives and hedging instruments	As part of its asset and liability management strategy, the Company uses derivative financial instruments to mitigate exposure to interest rate risks. The Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain of its risk, even though hedge accounting does not apply or the Company elects not to apply hedge accounting.In accordance with the FASB’s fair value measurement guidance, the Company made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.
Premises and equipment	Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation. The estimated useful lives and primary method of depreciation for the principal items are as follows: Years Type of Assets Minimum Maximum Depreciation Method Buildings and leasehold improvements 10 - 39 Straight-line Furniture and equipment 3 - 10 Straight-line Charges for maintenance and repairs are expensed as incurred. When assets are retired or disposed of, the related cost and accumulated depreciation are removed from the respective accounts and the resulting gain or loss is recorded.
Foreclosed assets net	Real estate properties and other assets acquired through or in lieu of foreclosure are initially recorded at fair value less estimated selling cost at the date of foreclosure, establishing a new cost basis. Fair value is determined by management by obtaining appraisals or other market value information at least annually. Any write-downs in value at the date of acquisition are charged to the allowance for credit losses. After foreclosure, valuations are periodically performed by management by obtaining updated appraisals or other market value information. Any subsequent write-downs are recorded as a charge to operations, if necessary, to reduce the carrying value of a property to the updated fair value less estimated selling cost. Net costs related to the holding of properties are included in noninterest expense.
Goodwill and other intangibles	Goodwill is the excess of the purchase price over the fair value of identifiable net assets acquired in business combinations accounted for as acquisitions. Under ASC Topic 350, goodwill of a reporting unit is tested for impairment on an annual basis, or between annual tests if an event occurs or circumstances change that would reduce the fair value of a reporting unit below its carrying amount. The Company's annual assessment is done at the reporting unit level, which the Company has concluded is at the consolidated level. The Company did not recognize impairment losses during the year ended December 31, 2021.In the prior year, management concluded that a triggering event occurred and performed an interim impairment test over goodwill as of September 30, 2020. The Company performed a market capitalization approach, a guideline public company approach and a discounted cash flow approach, to determine the fair value of the Company. As a result of this interim assessment, the Company recorded a goodwill impairment charge of $31.5 million as the estimated fair value was less than the book value on that date. This non-cash charge was reflected within "Noninterest expense" in the Consolidated Statements of Income and had no impact on the Company's regulatory capital ratios, cash flows and liquidity position.Certain other intangible assets that have finite lives are amortized on an accelerated basis over the estimated life of the assets. Such assets are evaluated for impairment if events and circumstances indicate a possible impairment.
Federal Home Loan Bank Stock	The Bank is a member of the FHLB of Des Moines as well as the FHLB of Chicago, and ownership of FHLB stock is a requirement for such membership. The amount of FHLB stock the Bank is required to hold is directly related to the amount of FHLB advances borrowed. This security is redeemable at par by the FHLB, and is, therefore, carried at cost. Redemption of this investment is at the option of the FHLB.
Mortgage servicing rights	Mortgage servicing rights are recorded at fair value based on assumptions through a third-party valuation service. The valuation model incorporates assumptions that are observable in the marketplace and that market participants would use in estimating future net servicing income, such as the servicing cost per loan, the discount rate, the escrow float rate, an inflation rate, ancillary income, prepayment speeds and default rates and losses.
Bank owned life insurance	BOLI represents life insurance policies on the lives of certain Company officers and directors or former officers and directors for which the Company is the beneficiary. Bank-owned life insurance is carried at cash surrender value, net of surrender and other charges, with increases/decreases reflected as noninterest income/expense in the consolidated statements of income.
Employee benefit plans	Deferred benefits under a salary continuation plan are charged to expense during the period in which the participating employees attain full eligibility.
Stock based compensation	Compensation expense for share based awards is recorded over the vesting period at the fair value of the award at the time of grant. The exercise price of options or fair value of nonvested shares granted under the Company’s incentive plans is equal to the fair market value of the underlying stock at the grant date. The Company assumes no projected forfeitures on its stock based compensation, since actual historical forfeiture rates on its stock-based incentive awards have been negligible.
Income taxes	The Company and/or its subsidiaries file tax returns in all states and local taxing jurisdictions which impose corporate income, franchise or other taxes where it operates. The methods of filing and the methods for calculating taxable and apportionable income vary depending upon the laws of the taxing jurisdiction. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to temporary differences between the financial statement carrying amount of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect of a change in tax rates on deferred tax assets and liabilities is recognized as income or expense in the period that includes the enactment date of such change. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. In accordance with ASC 740, Income Taxes , the Company recognizes a tax position as a benefit only if it is more likely than not that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized upon examination. For tax positions not meeting the more likely than not test, no tax benefit is recorded. The Company recognizes interest and/or penalties related to income tax matters in income tax expense. There were no material unrecognized tax benefits or any interest or penalties on any unrecognized tax benefits as of December 31, 2021 and 2020.
Common stock	Under the share repurchase program that was approved by the board of directors of the Company in October 2018, the repurchase of up to $5.0 million of stock was authorized. This plan was due to expire on December 31, 2020. Since the plan was announced in October 2018, the Company repurchased 174,702 shares of common stock for approximately $4.7 million.On August 20, 2019, the Board of Directors of the Company approved a new share repurchase program, allowing for the repurchase of up to $10.0 million of common stock through December 31, 2021. The new repurchase program replaced the Company’s prior repurchase program that was announced in October 2018. Since the plan was announced on August 20, 2019, the Company repurchased 297,158 shares of common stock for approximately $7.9 million, leaving $2.1 million available to be repurchased under that repurchase program as of June 22, 2021, the end of such program. On June 22, 2021, the Board of Directors of the Company approved a new share repurchase program, allowing for the repurchase of up to $15.0 million of the Company's common stock through December 31, 2023. The new repurchase program replaced the Company’s prior repurchase program, which was due to expire on December 31, 2021. For the period June 23, 2021 through December 31, 2021, the Company repurchased 311,967 shares of common stock for approximately $9.2 million, leaving $5.8 million available to be repurchased.
Comprehensive income	Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Certain changes in assets and liabilities, such as unrealized gains and losses on available-for-sale securities, are reported as a separate component of shareholders’ equity on the consolidated balance sheets, and are disclosed in the consolidated statements of comprehensive income.
Effect Of New Financial Accounting Standards	Accounting Guidance Pending Adoption in 2021 On March 12, 2020, the FASB issued ASU 2020-04, Reference Rate Reform (ASC 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting . ASC 848 contains optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform. Certain optional expedients and exceptions for contract modifications and hedging relationships were amended in ASU 2021-01, Reference Rate Reform (Topic 848): Scope Refinement , issued on January 7, 2021.
Revenue Recognition	Substantially all of the Company’s revenue is generated from contracts with customers. Topic 606 does not apply to revenue associated with financial instruments, including revenue from loans and securities. In addition, certain noninterest income streams such as fees associated with mortgage servicing rights, financial guarantees, derivatives, and certain credit card fees are also not in the scope of Topic 606. Noninterest revenue streams in-scope of Topic 606 are discussed below. Trust and Asset Management Trust and asset management income is primarily comprised of fees earned from the management and administration of trusts and other customer assets. The Company’s performance obligation is generally satisfied over time, and the resulting fees are recognized monthly, based upon the month-end market value of the assets under management and the applicable fee rate. Payment is generally received a few days after month end through a direct charge to customers’ accounts. The Company does not earn performance-based incentives. Optional services such as real estate sales and tax return preparation services are also available to existing trust and asset management customers. The Company’s performance obligation for these transactional-based services is generally satisfied, and related revenue recognized, at a point in time (i.e., as incurred). Payment is received shortly after services are rendered. Service Charges on Deposit Accounts Service charges on deposit accounts consist of account analysis fees (i.e., net fees earned on analyzed business and public checking accounts), monthly service fees, check orders, and other deposit account related fees. The Company’s performance obligation for account analysis fees and monthly service fees is generally satisfied, and the related revenue recognized, over the period in which the service is provided. Check orders and other deposit account related fees are largely transactional based, and therefore, the Company’s performance obligation is satisfied, and related revenue recognized, at a point in time. Payment for service charges on deposit accounts is primarily received immediately or in the following month through a direct charge to customers’ accounts. Fees, Exchange, and Other Service Charges Fees, exchange, and other service charges are primarily comprised of debit and credit card income, ATM fees, merchant services income, and other service charges. Debit and credit card income is primarily comprised of interchange fees earned whenever the Company’s debit and credit cards are processed through card payment networks such as Visa. ATM fees are primarily generated when a Company cardholder uses a non-Company ATM or a non-Company cardholder uses a Company ATM. Merchant services income mainly represents fees charged to merchants to process their debit and credit card transactions, in addition to account management fees. Other service charges include revenue from processing wire transfers, bill pay service, cashier’s checks, and other services. The Company’s performance obligation for fees, exchange, and other service charges are largely satisfied, and related revenue recognized, when the services are rendered or upon completion. Payment is typically received immediately or in the following month. Gains/Losses on Sales of Foreclosed Assets Gain or loss from the sale of foreclosed assets occurs when control of the property transfers to the buyer, which generally occurs at the time of an executed deed. When the Company finances the sale of foreclosed assets to the buyer, the Company assesses whether the buyer is committed to perform their obligations under the contract and whether collectability of the transaction price is probable. Once these criteria are met, the foreclosed assets are derecognized and the gain or loss on sale is recorded upon the transfer of control of the property to the buyer. In determining the gain or loss on the sale, the Company adjusts the transaction price and related gain (loss) on sale if a significant financing component is present. Foreclosed asset sales for the years ended December 31, 2021 and December 31, 2020 were not financed by the Bank. Other Other noninterest income consists of other recurring revenue streams such as safe deposit box rental fees, and other miscellaneous revenue streams. Safe deposit box rental fees are charged to the customer on an annual basis and recognized upon receipt of payment. The Company determined that since rentals and renewals occur fairly consistently over time, revenue is recognized on a basis consistent with the duration of the performance obligation. Contract Balances A contract asset balance occurs when an entity performs a service for a customer before the customer pays consideration (resulting in a contract receivable) or before payment is due (resulting in a contract asset). A contract liability balance is an entity’s obligation to transfer a service to a customer for which the entity has already received payment (or payment is due) from the customer. The Company’s noninterest revenue streams are largely based on transactional activity, or standard month-end revenue accruals such as asset management fees based on month-end market values. Consideration is often received immediately or shortly after the Company satisfies its performance obligation and revenue is recognized. The Company does not typically enter into long-term revenue contracts with customers, and therefore, does not experience significant contract balances. As of December 31, 2021 and December 31, 2020, the Company did not have any significant contract balances. Contract Acquisition Costs In connection with the adoption of Topic 606, an entity is required to capitalize, and subsequently amortize into expense, certain incremental costs of obtaining a contract with a customer if these costs are expected to be recovered. The incremental costs of obtaining a contract are those costs that an entity incurs to obtain a contract with a customer that it would not have incurred if the contract had not been obtained (for example, sales commission). The Company utilizes the practical expedient which allows entities to immediately expense contract acquisition costs when the asset that would have resulted from capitalizing these costs would have been amortized in one year or less. Upon adoption of Topic 606, the Company did not capitalize any contract acquisition cost.
Subsequent Events	Management evaluated subsequent events through the date the consolidated financial statements were issued. Events or transactions occurring after December 31, 2021, but prior to the date the consolidated financial statements were issued, that provided additional evidence about conditions that existed at December 31, 2021 have been recognized in the consolidated financial statements for the period ended December 31, 2021. Events or transactions that provided evidence about conditions that did not exist at December 31, 2021, but arose before the consolidated financial statements were issued, have not been recognized in the consolidated financial statements for the period ended December 31, 2021.
Fair Value Measurements	Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There are three levels of inputs that may be used to measure fair values: • Level 1 – Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. • Level 2 – Significant other observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data. • Level 3 – Significant unobservable inputs that reflect a company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability. The Company uses fair value to measure certain assets and liabilities on a recurring basis, primarily available for sale debt securities, derivatives and mortgage servicing rights. For assets measured at the lower of cost or fair value, the fair value measurement criteria may or may not be met during a reporting period, and such measurements are therefore considered "nonrecurring" for purposes of disclosing the Company's fair value measurements. Fair value is used on a nonrecurring basis to adjust carrying values for collateral dependent individually analyzed loans and foreclosed assets. Recurring Basis The Company used the following methods and significant assumptions to estimate the fair value of each type of financial instrument: Investment Securities - The fair value for investment securities are determined by quoted market prices, if available (Level 1). The Company utilizes an independent pricing service to obtain the fair value of debt securities. Debt securities issued by the U.S. Treasury and other U.S. Government agencies and corporations, mortgage-backed securities, and collateralized mortgage obligations are priced utilizing industry-standard models that consider various assumptions, including time value, yield curves, volatility factors, prepayment speeds, default rates, loss severity, current market and contractual prices for the underlying financial instruments, as well as other relevant economic measures. Substantially all of these assumptions are observable in the marketplace, can be derived from observable data, or are supported by observable levels at which transactions are executed in the marketplace (Level 2). Municipal securities are valued using a type of matrix, or grid, pricing in which securities are benchmarked against the treasury rate based on credit rating (Level 2). Derivatives - Interest rate swaps are valued by using cash flow valuation techniques with observable market data inputs (Level 2). The Company has entered into collateral agreements with its swap dealers which entitle it to receive collateral to cover market values on derivatives which are in asset position, thus a credit risk adjustment on interest rate swaps is not warranted. RPAs are entered into by the Company with institutional counterparties, under which the Company assumes its pro-rata share of the credit exposure associated with a borrower’s performance related to interest rate derivative contracts. The fair value of RPAs is calculated by determining the total expected asset or liability exposure using observable inputs, such as yield curves and volatilities, of the derivatives to the borrowers and applying the borrowers’ credit spread to that exposure (Level 2). The fair values of the interest rate lock commitments and interest rate forward loan sales contracts are estimated using quoted or published market prices for similar instruments, adjusted for factors such as pull-through rate assumptions based on historical information, where appropriate. The pull-through rate assumptions are considered Level 3 valuation inputs and are significant to the interest rate lock commitments valuation; as such, the interest rate lock commitments are classified as Level 3. Mortgage Servicing Rights (MSR) - MSRs are recorded at fair value based on assumptions through a third-party valuation service. The valuation model incorporates assumptions that are observable in the marketplace and that market participants would use in estimating future net servicing income, such as servicing cost per loan, the discount rate, the escrow float rate, an inflation rate, ancillary income, prepayment speeds and default rates and losses (Level 2).
Derivatives	Derivatives Designated as Hedging Instruments The Company uses derivative instruments to hedge its exposure to economic risks, including interest rate, liquidity, and credit risk. Certain hedging relationships are formally designated and qualify for hedge accounting under GAAP as fair value or cash flow hedges. Fair Value Hedges - Derivatives are designated as fair value hedges to limit the Company's exposure to changes in the fair value of assets or liabilities due to movements in interest rates. The Company entered into pay-fixed receive-floating interest rate swaps to manage its exposure to changes in fair value in certain fixed-rate assets. The gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in interest income. Cash Flow Hedges - Derivatives are designated as cash flow hedges in order to minimize the variability in cash flows of earning assets or forecasted transactions caused by movement in interest rates. In February 2020, the Company entered into a pay-fixed receive-variable interest rate swap with a notional amount of $30.0 million to hedge against adverse fluctuations in interest rates by reducing exposure to variability in cash flows relating to interest payments on the Company's variable rate debt. The interest rate swap was designated as a cash flow hedge. The gain or loss on the derivative was recorded in accumulated other comprehensive income and subsequently reclassified into interest expense in the same period(s) during which the hedged transaction affects earnings. The Company terminated its cash flow hedge in the fourth quarter of 2020.

Nature of Business and Signif_3

Nature of Business and Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Property, Plant and Equipment	Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation. The estimated useful lives and primary method of depreciation for the principal items are as follows: Years Type of Assets Minimum Maximum Depreciation Method Buildings and leasehold improvements 10 - 39 Straight-line Furniture and equipment 3 - 10 Straight-line
Schedule of Accumulated Other Comprehensive Income (Loss)	The components of accumulated other comprehensive loss included in shareholders’ equity were as follows: Year Ended December 31, (in thousands) 2021 2020 Unrealized (losses) gains on securities available for sale $ (11,996) $ 33,278 Less: Tax effect (3,131) 8,686 Accumulated other comprehensive (loss) gain, net of tax $ (8,865) $ 24,592

Business Combinations (Tables)

Business Combinations (Tables)	12 Months Ended
	Dec. 31, 2021
Business Combination and Asset Acquisition [Abstract]
Schedule of Business Acquisitions, Integration, Restructuring and Other Related Costs	The following table summarizes Iowa First Bancshares Corp. and ATBancorp acquisition-related expenses incurred in the years ended December 31, 2021 and December 31, 2020, respectively: Years Ended December 31, (in thousands) 2021 2020 2019 Noninterest Expense Compensation and employee benefits $ — $ — $ 5,435 Occupancy expense of premises, net — 7 117 Equipment 18 — 366 Legal and professional 202 — 2,762 Data processing — 44 90 Other 4 10 360 Total acquisition-related expenses $ 224 $ 61 $ 9,130

Debt Securities - (Tables)

Debt Securities - (Tables)	12 Months Ended
	Dec. 31, 2021
Debt Securities [Abstract]
Schedule of Available-for-sale Securities Reconciliation	The amortized cost and fair value of investment debt securities AFS, with gross unrealized gains and losses, were as follows: As of December 31, 2021 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Allowance for Credit Loss related to Debt Securities Fair Value (in thousands) U.S. Government agencies and corporations $ 265 $ 1 $ — $ — $ 266 State and political subdivisions 760,894 10,484 5,636 — 765,742 Mortgage-backed securities 100,325 932 631 — 100,626 Collateralized mortgage obligations 785,945 1,274 18,320 — 768,899 Corporate debt securities 652,677 6,305 6,405 — 652,577 Total debt securities $ 2,300,106 $ 18,996 $ 30,992 $ — $ 2,288,110 As of December 31, 2020 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Allowance for Credit Loss related to Debt Securities Fair Value (in thousands) U.S. Government agencies and corporations $ 355 $ 6 $ — $ — $ 361 State and political subdivisions 611,666 17,163 483 — 628,346 Mortgage-backed securities 92,261 1,758 1 — 94,018 Collateralized mortgage obligations 559,718 6,332 214 — 565,836 Corporate debt securities 360,103 9,333 616 — 368,820 Total debt securities $ 1,624,103 $ 34,592 $ 1,314 $ — $ 1,657,381
Schedule of Temporary Impairment Losses	The following table presents debt securities AFS in an unrealized loss position for which an allowance for credit losses has not been recorded at December 31, 2021, aggregated by investment category and length of time in a continuous loss position: As of December 31, 2021 Number Less than 12 Months 12 Months or More Total Available for Sale Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses (in thousands, except number of securities) State and political subdivisions 136 $ 311,960 $ 5,216 $ 15,343 $ 420 $ 327,303 $ 5,636 Mortgage-backed securities 6 43,319 631 80 — 43,399 631 Collateralized mortgage obligations 44 605,729 15,693 61,984 2,627 667,713 18,320 Corporate debt securities 52 303,750 4,567 27,071 1,838 330,821 6,405 Total 238 $ 1,264,758 $ 26,107 $ 104,478 $ 4,885 $ 1,369,236 $ 30,992 The following table presents debt securities AFS in an unrealized loss position for which an allowance for credit losses has not been recorded at December 31, 2020, aggregated by investment category and length of time in a continuous loss position. As of December 31, 2020 Number Less than 12 Months 12 Months or More Total Available for Sale Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses (in thousands, except number of securities) State and political subdivisions 27 $ 31,489 $ 157 $ 4,065 $ 326 $ 35,554 $ 483 Mortgage-backed securities 7 315 1 — — 315 1 Collateralized mortgage obligations 8 133,032 214 — — 133,032 214 Corporate debt securities 15 35,995 523 3,311 93 39,306 616 Total 57 $ 200,831 $ 895 $ 7,376 $ 419 $ 208,207 $ 1,314
Schedule of Proceeds and Realized Gains (Losses)	Proceeds and gross realized gains and losses on debt securities available for sale for the years ended December 31, 2021, 2020 and 2019, were as follows: Year Ended December 31, (in thousands) 2021 2020 2019 Proceeds from sales of debt securities available for sale $ 52,183 $ 27,391 $ 125,452 Gross realized gains from sales of debt securities available for sale $ 940 $ 280 $ 143 Gross realized losses from sales of debt securities available for sale (791) (123) (56) Net realized gain from sales of debt securities available for sale (1) $ 149 $ 157 $ 87 (1) The difference in investment security gains, net reported herein as compared to the Consolidated Statements of Income is associated with the net realized gain from the call or maturity of debt securities of $93 thousand, $27 thousand and $3 thousand for the years ended December 31, 2021, 2020, and 2019, respectively.
Schedule of Investments Classified by Contractual Maturity Date	The contractual maturity distribution of investment debt securities at December 31, 2021, is shown below. Expected maturities of MBS and CMO may differ from contractual maturities because the mortgages underlying the securities may be called or prepaid without any penalties. Therefore, these securities are not included in the maturity categories in the following summary. Available For Sale (in thousands) Amortized Cost Fair Value Due in one year or less $ 47,767 $ 48,096 Due after one year through five years 400,857 402,957 Due after five years through ten years 648,678 646,062 Due after ten years 316,534 321,470 $ 1,413,836 $ 1,418,585 Mortgage-backed securities 100,325 100,626 Collateralized mortgage obligations 785,945 768,899 Total $ 2,300,106 $ 2,288,110

Loans Receivable and the Allo_2

Loans Receivable and the Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 2021
Loans and Leases Receivable Disclosure [Abstract]
Schedule of Loans by Lending Classification	The composition of loans by class of receivable was as follows: As of December 31, (in thousands) 2021 2020 Agricultural $ 103,417 $ 116,392 Commercial and industrial 902,314 1,055,488 Commercial real estate: Construction & development 172,160 181,291 Farmland 144,673 144,970 Multifamily 244,503 256,525 Commercial real estate-other 1,143,205 1,149,575 Total commercial real estate 1,704,541 1,732,361 Residential real estate: One- to four- family first liens 333,308 355,684 One- to four- family junior liens 133,014 143,422 Total residential real estate 466,322 499,106 Consumer 68,418 78,876 Loans held for investment, net of unearned income $ 3,245,012 $ 3,482,223 Allowance for credit losses $ (48,700) $ (55,500) Total loans held for investment, net $ 3,196,312 $ 3,426,723
Schedule of Loans Based on Delinquency Status	The following table presents the amortized cost basis of loans based on delinquency status: Age Analysis of Past-Due Financial Assets (in thousands) Current 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total 90 Days or More Past Due and Accruing December 31, 2021 Agricultural $ 102,352 $ 244 $ — $ 821 $ 103,417 $ — Commercial and industrial 899,423 529 134 2,228 902,314 — Commercial real estate: Construction & development 171,169 396 — 595 172,160 — Farmland 141,814 116 — 2,743 144,673 — Multifamily 243,117 — 1,386 — 244,503 — Commercial real estate-other 1,129,073 8,417 306 5,409 1,143,205 — Total commercial real estate 1,685,173 8,929 1,692 8,747 1,704,541 — Residential real estate: One- to four- family first liens 330,992 1,057 1,057 202 333,308 — One- to four- family junior liens 132,392 261 135 226 133,014 — Total residential real estate 463,384 1,318 1,192 428 466,322 — Consumer 68,326 66 14 12 68,418 — Total $ 3,218,658 $ 11,086 $ 3,032 $ 12,236 $ 3,245,012 $ — December 31, 2020 Agricultural $ 115,284 $ 8 $ 45 $ 1,055 $ 116,392 $ — Commercial and industrial 1,051,727 477 333 2,951 1,055,488 106 Commercial real estate: Construction & development 180,059 586 42 604 181,291 — Farmland 138,798 226 324 5,622 144,970 — Multifamily 256,525 — — — 256,525 — Commercial real estate-other 1,132,015 11,514 318 5,728 1,149,575 — Total commercial real estate 1,707,397 12,326 684 11,954 1,732,361 — Residential real estate: One- to four- family first liens 351,370 2,062 566 1,686 355,684 625 One- to four- family junior liens 142,663 377 234 148 143,422 — Total residential real estate 494,033 2,439 800 1,834 499,106 625 Consumer 78,747 43 39 47 78,876 8 Total $ 3,447,188 $ 15,293 $ 1,901 $ 17,841 $ 3,482,223 $ 739
Schedule of Amortized Cost Basis on Nonaccrual Status	The following table presents the amortized cost basis of loans on non-accrual status, amortized cost basis of loans on non-accrual status with no allowance for credit losses recorded, and loans past due 90 days or more and still accruing by class of loan: Nonaccrual Nonaccrual with no Allowance for Credit Losses 90 Days or More Past Due And Accruing (in thousands) December 31, 2021 December 31, 2020 December 31, 2021 December 31, 2020 December 31, 2021 December 31, 2020 Agricultural $ 2,090 $ 2,584 $ 1,341 $ 1,599 $ — $ — Commercial and industrial 3,803 7,326 1,341 4,349 — 106 Commercial real estate: Construction and development 595 1,145 595 900 — — Farmland 5,499 8,319 4,156 7,266 — — Multifamily 987 746 323 39 — — Commercial real estate-other 16,544 19,134 1,063 2,497 — — Total commercial real estate 23,625 29,344 6,137 10,702 — — Residential real estate: One- to four- family first liens 1,275 1,895 345 75 — 625 One- to four- family junior liens 713 722 — 1 — — Total residential real estate 1,988 2,617 345 76 — 625 Consumer 34 79 — 13 — 8 Total $ 31,540 $ 41,950 $ 9,164 $ 16,739 $ — $ 739
Schedule of Credit Quality Indicator	The following table sets forth the amortized cost basis of loans by class of receivable by credit quality indicator and vintage based on the most recent analysis performed, as of December 31, 2021. As of December 31, 2021, there were no 'loss' rated credits. Term Loans by Origination Year Revolving Loans December 31, 2021 (in thousands) 2021 2020 2019 2018 2017 Prior Total Agricultural Pass $ 20,145 $ 8,604 $ 4,367 $ 1,260 $ 885 $ 947 $ 58,119 $ 94,327 Special mention / watch 1,255 148 245 — 17 993 1,685 4,343 Substandard 649 827 126 221 4 278 2,642 4,747 Doubtful — — — — — — — — Total $ 22,049 $ 9,579 $ 4,738 $ 1,481 $ 906 $ 2,218 $ 62,446 $ 103,417 Commercial and industrial Pass $ 297,285 $ 199,324 $ 56,258 $ 35,522 $ 60,294 $ 75,342 $ 132,323 $ 856,348 Special mention / watch 4,268 2,342 781 470 4,304 14,274 6,938 33,377 Substandard 8 1,772 1,255 772 37 2,922 5,823 12,589 Doubtful — — — — — — — — Total $ 301,561 $ 203,438 $ 58,294 $ 36,764 $ 64,635 $ 92,538 $ 145,084 $ 902,314 CRE - Construction and development Pass $ 90,662 $ 37,098 $ 4,942 $ 1,611 $ 1,543 $ 578 $ 33,197 $ 169,631 Special mention / watch 874 — 169 — — — — 1,043 Substandard — 879 596 — — 11 — 1,486 Doubtful — — — — — — — — Total $ 91,536 $ 37,977 $ 5,707 $ 1,611 $ 1,543 $ 589 $ 33,197 $ 172,160 CRE - Farmland Pass $ 51,682 $ 33,870 $ 18,674 $ 5,105 $ 5,060 $ 10,240 $ 1,812 $ 126,443 Special mention / watch 3,105 3,824 — 734 292 223 — 8,178 Substandard 1,580 2,004 1,681 2,562 1,667 558 — 10,052 Doubtful — — — — — — — — Total $ 56,367 $ 39,698 $ 20,355 $ 8,401 $ 7,019 $ 11,021 $ 1,812 $ 144,673 CRE - Multifamily Pass $ 97,188 $ 96,389 $ 19,234 $ 2,754 $ 4,555 $ 3,813 $ 273 $ 224,206 Special mention / watch 7,871 — — 6,000 1,859 544 — 16,274 Substandard 663 2,049 — — — 1,311 — 4,023 Doubtful — — — — — — — — Total $ 105,722 $ 98,438 $ 19,234 $ 8,754 $ 6,414 $ 5,668 $ 273 $ 244,503 CRE - other Pass $ 325,902 $ 384,591 $ 94,449 $ 37,960 $ 60,890 $ 60,543 $ 45,910 $ 1,010,245 Special mention / watch 5,302 26,239 5,172 11,243 2,557 1,905 1,768 54,186 Substandard 4,182 48,885 12,497 5,401 973 6,836 — 78,774 Doubtful — — — — — — — — Total $ 335,386 $ 459,715 $ 112,118 $ 54,604 $ 64,420 $ 69,284 $ 47,678 $ 1,143,205 RRE - One- to four- family first liens Performing $ 115,539 $ 77,086 $ 27,279 $ 24,697 $ 16,425 $ 65,676 $ 5,331 $ 332,033 Nonperforming 352 20 45 295 — 563 — 1,275 Total $ 115,891 $ 77,106 $ 27,324 $ 24,992 $ 16,425 $ 66,239 $ 5,331 $ 333,308 RRE - One- to four- family junior liens Performing $ 29,904 $ 13,335 $ 4,295 $ 5,109 $ 3,574 $ 5,104 $ 70,980 $ 132,301 Nonperforming 31 — 156 198 16 207 105 713 Total $ 29,935 $ 13,335 $ 4,451 $ 5,307 $ 3,590 $ 5,311 $ 71,085 $ 133,014 Consumer Performing $ 33,124 $ 14,386 $ 5,917 $ 4,080 $ 1,686 $ 5,778 $ 3,412 $ 68,383 Nonperforming — — 15 — 13 7 — 35 Total $ 33,124 $ 14,386 $ 5,932 $ 4,080 $ 1,699 $ 5,785 $ 3,412 $ 68,418 Total by Credit Quality Indicator Category Pass $ 882,864 $ 759,876 $ 197,924 $ 84,212 $ 133,227 $ 151,463 $ 271,634 $ 2,481,200 Special mention / watch 22,675 32,553 6,367 18,447 9,029 17,939 10,391 117,401 Substandard 7,082 56,416 16,155 8,956 2,681 11,916 8,465 111,671 Doubtful — — — — — — — — Performing 178,567 104,807 37,491 33,886 21,685 76,558 79,723 532,717 Nonperforming 383 20 216 493 29 777 105 2,023 Total $ 1,091,571 $ 953,672 $ 258,153 $ 145,994 $ 166,651 $ 258,653 $ 370,318 $ 3,245,012 The following table sets forth the amortized cost basis of loans by class of receivable by credit quality indicator and vintage based on the most recent analysis performed, as of December 31, 2020. As of December 31, 2020, there were no 'loss' rated credits. Term Loans by Origination Year Revolving Loans December 31, 2020 (in thousands) 2020 2019 2018 2017 2016 Prior Total Agricultural Pass $ 17,836 $ 6,959 $ 2,764 $ 2,145 $ 1,386 $ 1,833 $ 60,802 $ 93,725 Special mention / watch 4,892 1,083 117 108 553 1,103 7,210 15,066 Substandard 4,075 650 258 183 121 226 2,086 7,599 Doubtful 1 — — — — 1 — 2 Total $ 26,804 $ 8,692 $ 3,139 $ 2,436 $ 2,060 $ 3,163 $ 70,098 $ 116,392 Commercial and industrial Pass $ 546,171 $ 105,523 $ 57,055 $ 61,753 $ 38,695 $ 92,526 $ 120,498 $ 1,022,221 Special mention / watch 3,410 572 497 2,261 611 112 4,796 12,259 Substandard 5,014 1,539 928 656 461 3,261 9,144 21,003 Doubtful — — — 1 — 3 1 5 Total $ 554,595 $ 107,634 $ 58,480 $ 64,671 $ 39,767 $ 95,902 $ 134,439 $ 1,055,488 CRE - Construction and development Pass $ 109,885 $ 25,972 $ 14,994 $ 2,696 $ 679 $ 876 $ 22,519 $ 177,621 Special mention / watch 843 298 542 — 9 3 — 1,695 Substandard 597 1,132 220 — — 26 — 1,975 Doubtful — — — — — — — — Total $ 111,325 $ 27,402 $ 15,756 $ 2,696 $ 688 $ 905 $ 22,519 $ 181,291 CRE - Farmland Pass $ 48,378 $ 25,022 $ 9,577 $ 10,490 $ 8,378 $ 13,003 $ 1,263 $ 116,111 Special mention / watch 8,088 4,583 935 660 361 237 — 14,864 Substandard 3,924 2,627 4,386 1,728 166 1,128 36 13,995 Doubtful — — — — — — — — Total $ 60,390 $ 32,232 $ 14,898 $ 12,878 $ 8,905 $ 14,368 $ 1,299 $ 144,970 CRE - Multifamily Pass $ 164,817 $ 18,992 $ 17,805 $ 10,706 $ 10,201 $ 19,581 $ 11,558 $ 253,660 Special mention / watch 345 — — — 59 — — 404 Substandard 1,099 — — — 1,362 — — 2,461 Doubtful — — — — — — — — Total $ 166,261 $ 18,992 $ 17,805 $ 10,706 $ 11,622 $ 19,581 $ 11,558 $ 256,525 CRE - other Pass $ 487,771 $ 129,388 $ 60,957 $ 83,393 $ 66,369 $ 91,698 $ 45,129 $ 964,705 Special mention / watch 71,141 14,870 12,415 5,953 3,756 4,335 455 112,925 Substandard 48,690 7,162 6,370 1,222 579 6,997 925 71,945 Doubtful — — — — — — — — Total $ 607,602 $ 151,420 $ 79,742 $ 90,568 $ 70,704 $ 103,030 $ 46,509 $ 1,149,575 RRE - One- to four- family first liens Performing $ 117,923 $ 46,581 $ 42,875 $ 30,628 $ 37,407 $ 68,501 $ 9,249 $ 353,164 Nonperforming 239 1 596 303 148 1,233 — 2,520 Total $ 118,162 $ 46,582 $ 43,471 $ 30,931 $ 37,555 $ 69,734 $ 9,249 $ 355,684 RRE - One- to four- family junior liens Performing $ 19,818 $ 7,973 $ 12,140 $ 6,152 $ 3,467 $ 5,354 $ 87,795 $ 142,699 Nonperforming 7 — 223 17 116 190 170 723 Total $ 19,825 $ 7,973 $ 12,363 $ 6,169 $ 3,583 $ 5,544 $ 87,965 $ 143,422 Consumer Performing $ 30,755 $ 13,662 $ 10,341 $ 4,960 $ 2,656 $ 6,306 $ 10,118 $ 78,798 Nonperforming 2 21 13 5 13 24 — 78 Total $ 30,757 $ 13,683 $ 10,354 $ 4,965 $ 2,669 $ 6,330 $ 10,118 $ 78,876 Total by Credit Quality Indicator Category Pass $ 1,374,858 $ 311,856 $ 163,152 $ 171,183 $ 125,708 $ 219,517 $ 261,769 $ 2,628,043 Special mention / watch 88,719 21,406 14,506 8,982 5,349 5,790 12,461 157,213 Substandard 63,399 13,110 12,162 3,789 2,689 11,638 12,191 118,978 Doubtful 1 — — 1 — 4 1 7 Performing 168,496 68,216 65,356 41,740 43,530 80,161 107,162 574,661 Nonperforming 248 22 832 325 277 1,447 170 3,321 Total $ 1,695,721 $ 414,610 $ 256,008 $ 226,020 $ 177,553 $ 318,557 $ 393,754 $ 3,482,223
Schedule of Changes in Allowance for Credit Losses	The changes in the allowance for credit losses by portfolio segment were as follows: For the Years Ended December 31, 2021, 2020 and 2019 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total 2021 Beginning balance, prior to the adoption of ASC 326 $ 1,346 $ 15,689 $ 32,640 $ 4,882 $ 943 $ 55,500 Charge-offs (170) (1,015) (602) (107) (438) (2,332) Recoveries 149 1,604 742 88 185 2,768 Credit loss (benefit) expense (1) (658) 1,016 (6,660) (853) (81) (7,236) Ending balance $ 667 $ 17,294 $ 26,120 $ 4,010 $ 609 $ 48,700 2020 Beginning balance $ 3,748 $ 8,394 $ 13,804 $ 2,685 $ 448 $ 29,079 Day 1 transition adjustment from adoption of ASC 326 (2,557) 2,728 1,300 2,050 463 $ 3,984 Charge-offs (1,051) (2,502) (2,317) (186) (737) (6,793) Recoveries 130 1,055 124 49 170 1,528 Credit loss expense (1) 1,076 6,014 19,729 284 599 27,702 Ending balance $ 1,346 $ 15,689 $ 32,640 $ 4,882 $ 943 $ 55,500 2019 Beginning balance $ 3,637 $ 7,478 $ 15,635 $ 2,349 $ 208 $ 29,307 Charge-offs (1,130) (4,774) (1,537) (229) (720) (8,390) Recoveries 32 195 311 105 361 1,004 Credit loss (benefit) expense 1,209 5,495 (605) 460 599 7,158 Ending balance $ 3,748 $ 8,394 $ 13,804 $ 2,685 $ 448 $ 29,079 (1) The difference in the credit loss expense reported herein as compared to the Consolidated Statements of Income is associated with the credit loss benefit of $0.1 million and a credit loss expense of $0.7 million related to off-balance sheet credit exposures for the years ended December 31, 2021 and December 31, 2020, respectively. There was no credit loss expense related to off-balance sheet credit exposures recorded in the year ended December 31, 2019. The composition of allowance for credit losses by portfolio segment based on evaluation method were as follows: As of December 31, 2021 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total Loans held for investment, net of unearned income Individually evaluated for impairment $ 1,341 $ 3,005 $ 23,118 $ 570 $ — $ 28,034 Collectively evaluated for impairment 102,076 899,309 1,681,423 465,752 68,418 3,216,978 Total $ 103,417 $ 902,314 $ 1,704,541 $ 466,322 $ 68,418 $ 3,245,012 Allowance for credit losses Individually evaluated for impairment $ — $ 681 $ 2,193 $ 224 $ — $ 3,098 Collectively evaluated for impairment 667 16,613 23,927 3,786 609 45,602 Total $ 667 $ 17,294 $ 26,120 $ 4,010 $ 609 $ 48,700 As of December 31, 2020 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total Loans held for investment, net of unearned income Individually evaluated for impairment $ 2,088 $ 6,582 $ 28,235 $ 427 $ 8 $ 37,340 Collectively evaluated for impairment 114,304 1,048,906 1,704,126 498,679 78,868 3,444,883 Total $ 116,392 $ 1,055,488 $ 1,732,361 $ 499,106 $ 78,876 $ 3,482,223 Allowance for loan losses Individually evaluated for impairment $ 66 $ 799 $ 2,031 $ 179 $ — $ 3,075 Collectively evaluated for impairment 1,280 14,890 30,609 4,703 943 52,425 Total $ 1,346 $ 15,689 $ 32,640 $ 4,882 $ 943 $ 55,500
Financing Receivable, Collateral Depend Loans	The following table presents the amortized cost basis of collateral dependent loans, by the primary collateral type, which are individually evaluated to determine expected credit losses, and the related ACL allocated to these loans: As of December 31, 2021 Primary Type of Collateral (in thousands) Real Estate Equipment Other Total ACL Allocation Agricultural $ 916 $ 425 $ — $ 1,341 $ — Commercial and industrial 408 374 2,223 3,005 681 Commercial real estate: Construction and development 595 — — 595 — Farmland 5,185 — — 5,185 22 Multifamily 987 — — 987 387 Commercial real estate-other 16,130 — 221 16,351 1,784 Residential real estate: One- to four- family first liens 410 — — 410 64 One- to four- family junior liens — — 160 160 160 Consumer — — — — — Total $ 24,631 $ 799 $ 2,604 $ 28,034 $ 3,098 As of December 31, 2020 Primary Type of Collateral (in thousands) Real Estate Equipment Other Total ACL Allocation Agricultural $ 516 $ 824 $ 748 $ 2,088 $ 66 Commercial and industrial 667 3,037 2,878 6,582 799 Commercial real estate: Construction and development 899 — — 899 — Farmland 7,850 — — 7,850 88 Multifamily 746 — — 746 202 Commercial real estate-other 18,740 — — 18,740 1,741 Residential real estate: One- to four- family first liens 204 — — 204 132 One- to four- family junior liens 223 — — 223 47 Consumer — 8 — 8 — Total $ 29,845 $ 3,869 $ 3,626 $ 37,340 $ 3,075
Schedule of TDRs by Class of Financing Receivable	The following table sets forth information on the Company's TDRs by class of financing receivable occurring during the stated periods. TDRs may include multiple concessions, and the disclosure classifications in the table are based on the primary concession provided to the borrower. 2021 2020 2019 (dollars in thousands) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment CONCESSION - Interest rate reduction Commercial and industrial — $ — $ — 1 $ 143 $ 143 — $ — $ — Farmland 2 1,982 1,982 — — — — — — One- to four- family first liens 1 171 171 — — — — — — CONCESSION - Extended maturity date Agricultural — — — — — — 7 341 341 Commercial and industrial — — — 2 480 480 3 6,309 6,309 Farmland — — — — — — 1 158 158 Multifamily — — — 1 39 39 — — — Commercial real estate-other 2 9,717 9,623 3 759 808 — — — One- to four- family first liens 3 263 263 3 274 278 4 294 293 One- to four- family junior liens — — — — — — 6 168 168 CONCESSION - Other Agricultural — — — 4 848 858 — — — Farmland — — — 3 504 514 — — — Multifamily — — — 1 706 706 — — — Commercial real estate-other 1 44 44 1 667 667 — — — One- to four- family first liens 1 150 150 3 317 317 — — — Total 10 $ 12,327 $ 12,233 22 $ 4,737 $ 4,810 21 $ 7,270 $ 7,269 Loans by class of financing receivable modified as TDRs that redefaulted within 12 months subsequent to restructure during the stated periods were: 2021 2020 2019 Number of Contracts Recorded Investment Number of Contracts Recorded Investment Number of Contracts Recorded Investment (dollars in thousands) CONCESSION - Interest rate reduction Farmland 1 $ 1 — $ — — $ — CONCESSION - Extended maturity date Agricultural — — — — 6 315 Commercial and industrial — — 1 142 — — Farmland — — — — 1 158 Commercial real estate-other 1 132 — — — — One- to four- family first liens — — 2 203 3 239 One- to four- family junior liens — — — — 2 30 CONCESSION - Other Agricultural — — 1 59 — — Farmland — — 1 150 — — Multifamily 1 663 — — — — One- to four- family first liens — — 1 169 — — Total 3 $ 796 6 $ 723 12 $ 742
Schedule of Impaired Receivables	Impaired Loan Disclosures The following table presents the average recorded investment and interest income recognized for loans individually evaluated for impairment, excluding purchased credit impaired loans, by class of receivable, during the stated periods, which were prior to the adoption of ASC 326: For the Year Ended December 31, 2019 (in thousands) Average Recorded Investment Interest Income Recognized With no related allowance recorded: Agricultural $ 2,388 $ 43 Commercial and industrial 5,323 — Commercial real estate: Construction & development 244 37 Farmland 2,243 — Multifamily — — Commercial real estate-other 2,161 224 Total commercial real estate 4,648 261 Residential real estate: One- to four- family first liens 323 2 One- to four- family junior liens — — Total residential real estate 323 2 Consumer 17 — Total $ 12,699 $ 306 With an allowance recorded: Agricultural $ 1,500 $ 34 Commercial and industrial 2,186 136 Commercial real estate: Construction & development 26 7 Farmland 684 5 Multifamily — — Commercial real estate-other 1,558 100 Total commercial real estate 2,268 112 Residential real estate: One- to four- family first liens 265 9 One- to four- family junior liens — — Total residential real estate 265 9 Consumer — — Total $ 6,219 $ 291 Total: Agricultural $ 3,888 $ 77 Commercial and industrial 7,509 136 Commercial real estate: Construction & development 270 44 Farmland 2,927 5 Multifamily — — Commercial real estate-other 3,719 324 Total commercial real estate 6,916 373 Residential real estate: One- to four- family first liens 588 11 One- to four- family junior liens — — Total residential real estate 588 11 Consumer 17 — Total $ 18,918 $ 597

Derivatives, Hedging Activiti_2

Derivatives, Hedging Activities and Balance Sheet Offsetting (Tables)	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	The following table presents the total notional amounts and gross fair values of the Company’s derivatives as of the dates indicated. The derivative asset and liability balances are presented on a gross basis, prior to the application of master netting agreements, as included in other assets and other liabilities, respectively, on the consolidated balance sheets. As of December 31, 2021 As of December 31, 2020 Notional Fair Value Notional Fair Value (in thousands) Assets Liabilities Assets Liabilities Designated as hedging instruments: Fair value hedges: Interest rate swaps $ 24,802 $ 424 $ 1,400 $ 25,559 $ 34 $ 2,452 Total $ 24,802 $ 424 $ 1,400 $ 25,559 $ 34 $ 2,452 Not designated as hedging instruments: Interest rate swaps $ 356,636 $ 5,352 $ 5,363 $ 347,380 $ 10,758 $ 10,807 RPAs - protection sold 4,229 — — 4,471 4 — RPAs - protection purchased 9,629 — 2 9,825 — 8 Interest rate lock commitments 17,438 330 — — — — Interest rate forward loan sales contracts 22,710 — (24) — — — Total $ 410,642 $ 5,682 $ 5,341 $ 361,676 $ 10,762 $ 10,815
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location	The table below presents the effect of cash flow hedge accounting on AOCI for the years ended December 31, 2021 and 2020. Amount of Gain (Loss) Recognized in AOCI on Derivative Location of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Year Ended December 31, Year Ended December 31, (in thousands) 2021 2020 2021 2020 Interest rate swaps $ — $ (1,002) Interest Expense $ — $ (1,002) The table below presents the effect of the Company’s derivative financial instruments designated as hedging instruments on the consolidated statements of income for the years ended December 31, 2021, 2020, and 2019: Location and Amount of Gain or Loss Recognized in Income on Fair Value and Cash Flow Hedging Relationships For the Years Ended December 31, 2021 2020 2019 (in thousands) Interest Income Other Income Interest Income Other Income Interest Income Other Income Total amounts of income and expense line items presented in the consolidated statements of income in which the effects of fair value or cash flow hedges are recorded $ (439) $ — $ (335) $ — $ 1 $ — The effects of fair value and cash flow hedging: Gain (Loss) on fair value hedging relationships: Interest contracts: Hedged items (1,441) — 1,308 — 891 — Derivative designated as hedging instruments 1,052 — (1,339) — (890) — Income statement effect of cash flow hedging relationships: Interest contracts: Amount reclassified from AOCI into income — — (226) — — — Amount of loss reclassified from AOCI into income upon de-designation of cash flow hedge — — — (776) — —
Schedule of Hedged Items In Fair Value Hedging Relationship	As of December 31, 2021, the following amounts were recorded on the balance sheet related to cumulative basis adjustment for fair value hedges: Balance Sheet Line Item in Which the Carrying Amount of the Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset (in thousands) Loans $ 25,801 $ 978
Schedule of Derivatives Not Designated as Hedging Instruments	The following table presents the net gains (losses) recognized on the consolidated statements of income related to the derivatives not designated as hedging instruments for the years ended December 31, 2021, 2020, and 2019: Location in the Consolidated Statements of Income For the Years Ended December 31, (in thousands) 2021 2020 2019 Interest rate swaps Other income $ 38 $ 126 $ (138) RPAs Other income 2 102 (117) Interest rate lock commitments Loan revenue 330 — — Interest rate forward loan sales contracts Loan revenue 24 — — Total $ 394 $ 228 $ (255)
Schedule of Offsetting Derivative Assets	The table below presents gross derivatives and the respective collateral received or pledged in the form of other financial instruments as of December 31, 2021 and December 31, 2020, which are generally marketable securities and/or cash. The collateral amounts in the table below are limited to the outstanding balances of the related asset or liability (after netting is applied); thus instances of over-collateralization are not shown. Further, the net amounts of derivative assets or liabilities can be reconciled to the tabular disclosure of fair value. The tabular disclosure of fair value provides the location that derivative assets and liabilities are presented on the consolidated balance sheets. Gross Amounts of Recognized Assets (Liabilities) Gross Amounts Offset in the Balance Sheet Net Amounts of Assets (Liabilities) presented in the Balance Sheet Gross Amounts Not Offset in the Balance Sheet Net Assets (Liabilities) (in thousands) Financial Instruments Cash Collateral Received (Paid) As of December 31, 2021 Asset Derivatives $ 6,106 $ — $ 6,106 $ — $ — $ 6,106 Liability Derivatives (6,741) — (6,741) (3,250) (3,491) As of December 31, 2020 Asset Derivatives $ 10,796 $ — $ 10,796 $ — $ — $ 10,796 Liability Derivatives (13,267) — (13,267) — (13,267) —
Schedule of Offsetting Derivative Liabilities	The table below presents gross derivatives and the respective collateral received or pledged in the form of other financial instruments as of December 31, 2021 and December 31, 2020, which are generally marketable securities and/or cash. The collateral amounts in the table below are limited to the outstanding balances of the related asset or liability (after netting is applied); thus instances of over-collateralization are not shown. Further, the net amounts of derivative assets or liabilities can be reconciled to the tabular disclosure of fair value. The tabular disclosure of fair value provides the location that derivative assets and liabilities are presented on the consolidated balance sheets. Gross Amounts of Recognized Assets (Liabilities) Gross Amounts Offset in the Balance Sheet Net Amounts of Assets (Liabilities) presented in the Balance Sheet Gross Amounts Not Offset in the Balance Sheet Net Assets (Liabilities) (in thousands) Financial Instruments Cash Collateral Received (Paid) As of December 31, 2021 Asset Derivatives $ 6,106 $ — $ 6,106 $ — $ — $ 6,106 Liability Derivatives (6,741) — (6,741) (3,250) (3,491) As of December 31, 2020 Asset Derivatives $ 10,796 $ — $ 10,796 $ — $ — $ 10,796 Liability Derivatives (13,267) — (13,267) — (13,267) —

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Schedule of Premises and Equipment	Premises and equipment as of December 31, 2021 and 2020 were as follows: As of December 31, (in thousands) 2021 2020 Land $ 14,144 $ 14,144 Buildings and leasehold improvements 89,141 88,783 Furniture and equipment 20,978 21,969 Construction in process 319 82 Premises and equipment 124,582 124,978 Accumulated depreciation and amortization 41,090 38,577 Premises and equipment, net $ 83,492 $ 86,401

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The following table presents the changes in the carrying amount of goodwill for the periods indicated: For the Years Ended December 31, (in thousands) 2021 2020 Goodwill, beginning of period $ 62,477 $ 91,918 Fair value adjustment (1) — 2,059 Goodwill impairment (2) — (31,500) Total goodwill, end of period $ 62,477 $ 62,477 (1) Goodwill adjustments consisted of the ATBancorp acquisition purchase accounting adjustments, which were finalized in the first quarter of 2020. (2) Goodwill impairment relates to the impairment charge that was recorded in the third quarter of 2020. Refer to Note 1. Nature of Business and Significant Accounting Policies for additional information.
Schedule of Indefinite-Lived Intangible Assets	The following table presents the gross carrying amount, accumulated amortization, and net carrying amount of other intangible assets at the dates indicated: As of December 31, 2021 As of December 31, 2020 (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Core deposit intangible $ 41,745 $ (30,629) $ 11,116 $ 41,745 $ (26,440) $ 15,305 Customer relationship intangible 5,265 (3,692) 1,573 5,265 (2,630) 2,635 Other 2,700 (2,544) 156 2,700 (2,438) 262 $ 49,710 $ (36,865) $ 12,845 $ 49,710 $ (31,508) $ 18,202 Indefinite-lived trade name intangible $ 7,040 $ 7,040
Schedule of Finite-Lived Intangible Assets	The following table presents the gross carrying amount, accumulated amortization, and net carrying amount of other intangible assets at the dates indicated: As of December 31, 2021 As of December 31, 2020 (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Core deposit intangible $ 41,745 $ (30,629) $ 11,116 $ 41,745 $ (26,440) $ 15,305 Customer relationship intangible 5,265 (3,692) 1,573 5,265 (2,630) 2,635 Other 2,700 (2,544) 156 2,700 (2,438) 262 $ 49,710 $ (36,865) $ 12,845 $ 49,710 $ (31,508) $ 18,202 Indefinite-lived trade name intangible $ 7,040 $ 7,040
Schedule of Future Amortization Expense	The following table provides the estimated future amortization expense of intangible assets: (in thousands) Core Deposit Intangible Customer Relationship Intangible Other Total Year ending December 31, 2022 $ 3,487 $ 797 $ 79 $ 4,363 2023 2,833 518 51 3,402 2024 2,180 239 24 2,443 2025 1,526 19 2 1,547 2026 872 — — 872 Thereafter 218 — — 218 Total $ 11,116 $ 1,573 $ 156 $ 12,845

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2021
Other Assets [Abstract]
Schedule of Other Assets	The components of the Company’s other assets as of December 31, 2021 and December 31, 2020 were as follows: As of December 31, (in thousands) 2021 2020 Bank-owned life insurance $ 85,372 $ 83,483 Interest receivable 20,117 21,706 FHLB stock 10,157 13,784 Mortgage servicing rights 6,532 5,137 Operating lease right-of-use assets, net 2,840 3,613 Federal & state taxes, current 178 — Federal & state taxes, deferred 13,893 3,845 Derivative assets 6,106 10,796 Other receivables/assets 12,553 11,129 $ 157,748 $ 153,493

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2021
Deposits [Abstract]
Schedule of Deposit Liabilities	The following table presents the composition of our deposits as of the dates indicated: As of December 31, (in thousands) 2021 2020 Noninterest-bearing deposits $ 1,005,369 $ 910,655 Interest checking deposits 1,619,136 1,351,641 Money market deposits 939,523 918,654 Savings deposits 628,242 529,751 Time deposits under $250 505,392 581,471 Time deposits of $250 or more 416,857 254,877 Total deposits $ 5,114,519 $ 4,547,049
Schedule of Time Deposit Maturities	At December 31, 2021, the scheduled maturities of certificates of deposits were as follows: (in thousands) 2022 $ 687,934 2023 124,162 2024 70,116 2025 11,967 2026 23,879 Thereafter 4,191 Total $ 922,249

Short-Term Borrowings (Tables)

Short-Term Borrowings (Tables)	12 Months Ended
	Dec. 31, 2021
Short-term Debt [Abstract]
Schedule of Short-term Debt	The following table summarizes our short-term borrowings as of the dates indicated: December 31, 2021 December 31, 2020 (dollars in thousands) Weighted Average Rate Balance Weighted Average Rate Balance Securities sold under agreements to repurchase 0.24 % $ 181,368 0.28 % $ 174,289 Federal Home Loan Bank advances — — 0.29 56,500 Total 0.24 % $ 181,368 0.28 % $ 230,789

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Schedule of Long-term Debt	The table below summarizes the terms of each issuance of junior subordinated notes outstanding as of the dates indicated: December 31, 2021 Face Value Book Value Interest Rate Interest Rate Maturity Date Callable Date (in thousands) ATBancorp Statutory Trust I $ 7,732 $ 6,888 Three-month LIBOR + 1.68% 1.88 % 06/15/2036 06/15/2011 ATBancorp Statutory Trust II 12,372 10,908 Three-month LIBOR + 1.65% 1.85 % 09/15/2037 06/15/2012 Barron Investment Capital Trust I 2,062 1,800 Three-month LIBOR + 2.15% 2.37 % 09/23/2036 09/23/2011 Central Bancshares Capital Trust II 7,217 6,880 Three-month LIBOR + 3.50% 3.70 % 03/15/2038 03/15/2013 MidWestOne Statutory Trust II 15,464 15,464 Three-month LIBOR + 1.59% 1.79 % 12/15/2037 12/15/2012 Total $ 44,847 $ 41,940 December 31, 2020 ATBancorp Statutory Trust I $ 7,732 $ 6,850 Three-month LIBOR + 1.68% 1.90 % 06/15/2036 06/15/2011 ATBancorp Statutory Trust II 12,372 10,850 Three-month LIBOR + 1.65% 1.87 % 09/15/2037 06/15/2012 Barron Investment Capital Trust I 2,062 1,767 Three-month LIBOR + 2.15% 2.39 % 09/23/2036 09/23/2011 Central Bancshares Capital Trust II 7,217 6,832 Three-month LIBOR + 3.50% 3.72 % 03/15/2038 03/15/2013 MidWestOne Statutory Trust II 15,464 15,464 Three-month LIBOR + 1.59% 1.81 % 12/15/2037 12/15/2012 Total $ 44,847 $ 41,763 Long-term borrowings were as follows as of December 31, 2021 and December 31, 2020: December 31, 2021 December 31, 2020 (in thousands) Weighted Average Rate Balance Weighted Average Rate Balance Finance lease payable 8.89 % $ 951 8.89 % $ 1,096 FHLB borrowings 2.76 48,113 1.92 91,198 Total 2.88 % $ 49,064 2.00 % $ 92,294
Schedule of Federal Home Loan Bank, Advances, by Branch of FHLB Bank	As of December 31, 2021, FHLB borrowings were as follows: (in thousands) Weighted Average Rate Amount Due in 2022 2.68 % $ 31,000 Due in 2023 2.79 % 11,000 Due in 2024 3.15 % 6,000 Total 48,000 Valuation adjustment from acquisition accounting 113 Total $ 48,113

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	Income taxes for the years ended December 31, 2021, 2020 and 2019 are summarized as follows: December 31, (in thousands) 2021 2020 2019 Current: Federal tax expense $ 12,675 $ 7,376 $ 1,217 State tax expense 5,549 4,548 2,353 Deferred: Deferred income tax expense 1,768 (5,225) 3,003 Total income tax provision $ 19,992 $ 6,699 $ 6,573
Schedule of Effective Income Tax Rate Reconciliation	Year ended December 31, 2021 2020 2019 (dollars in thousands) Amount % of Pretax Income Amount % of Pretax Income Amount % of Pretax Income Income tax based on statutory rate $ 18,790 21.0 % $ 2,798 21.0 % $ 10,543 21.0 % Tax-exempt interest (3,500) (3.9) (3,053) (22.9) (2,392) (4.8) Bank-owned life insurance (451) (0.5) (467) (3.5) (394) (0.8) State income taxes, net of federal income tax benefit 4,624 5.2 2,355 17.6 2,688 5.3 Goodwill impairment — — 6,615 49.6 — — Non-deductible acquisition expenses 41 — — — 177 0.4 General business credits 22 — (1,751) (13.1) (4,090) (8.1) Other 466 0.5 202 1.5 41 0.1 Total income tax expense $ 19,992 22.3 % $ 6,699 50.2 % $ 6,573 13.1 %
Schedule of Deferred Tax Assets and Liabilities	Net deferred tax assets as of December 31, 2021 and December 31, 2020 consisted of the following components: December 31, (in thousands) 2021 2020 Deferred income tax assets: Allowance for credit losses $ 13,732 $ 15,529 Deferred compensation 3,483 3,698 Net operating losses (state corporate tax differences) 5,624 5,134 Unrealized losses on investment securities 3,131 — Accrued compensation 1,365 983 ROU liabilities 984 1,194 Other 2,003 2,656 Gross deferred tax assets 30,322 29,194 Deferred income tax liabilities: Premises and equipment depreciation and amortization 4,356 4,573 Purchase accounting adjustments 2,880 3,613 Mortgage servicing rights 1,702 1,339 Unrealized gains on investment securities — 8,685 ROU assets 930 1,144 Other 937 861 Gross deferred tax liabilities 10,805 20,215 Net deferred income tax asset 19,517 8,979 Valuation allowance 5,624 5,134 Net deferred tax asset $ 13,893 $ 3,845

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2021
Employee Benefit Plans [Abstract]
Schedule of Changes in Projected Benefit Obligations	Changes in the liability related to the SERPs, included in other liabilities, were as follows for the years ended December 31, 2021, 2020 and 2019: (in thousands) 2021 2020 2019 Balance, beginning $ 1,395 $ 1,632 $ 1,867 Company contributions and interest 79 104 117 Cash payments made (228) (341) (352) Balance, ending $ 1,246 $ 1,395 $ 1,632 (in thousands) 2021 2020 2019 Balance, beginning $ 4,771 $ 5,452 $ 1,104 Plans acquired in ATBancorp merger — — 11,058 Company paid interest 137 246 145 Cash payments made (619) (927) (6,855) Balance, ending $ 4,289 $ 4,771 $ 5,452
Schedule of Deferred Compensation Plans	Changes in the deferred compensation agreements, included in other liabilities, were as follows for the years ended December 31, 2021, 2020 and 2019: (in thousands) 2021 2020 2019 Balance, beginning $ 6,159 $ 7,021 $ 855 Plans acquired in ATBancorp merger — — 5,958 Employee deferrals 223 200 157 Company paid interest 142 560 395 Cash payments made (644) (1,622) (344) Balance, ending $ 5,880 $ 6,159 $ 7,021 (in thousands) 2021 2020 2019 Balance, beginning $ 1,905 $ 1,670 $ 1,442 Company deferral expense 86 235 228 Balance, ending $ 1,991 $ 1,905 $ 1,670

Stock Compensation Plans (Table

Stock Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Schedule of Restricted Stock Unit Activity	The following is a summary of non-vested restricted stock unit activity for the year ended December 31, 2021: Weighted-Average Shares Grant-Date Fair Value Non-vested at December 31, 2020 124,270 $ 28.80 Granted 84,066 28.40 Vested (54,266) 26.51 Forfeited (9,544) 29.92 Reinvested 3,556 28.62 Non-vested at December 31, 2021 148,082 $ 29.33

Earnings per Share (Tables)

Earnings per Share (Tables)	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	The following table presents the computation of basic and diluted earnings per common share for the periods indicated: Year Ended December 31, (dollars in thousands, except per share amounts) 2021 2020 2019 Basic Earnings Per Share: Net income $ 69,486 $ 6,623 $ 43,630 Weighted average shares outstanding 15,876,727 16,102,226 14,869,952 Basic earnings per common share $ 4.38 $ 0.41 $ 2.93 Diluted Earnings Per Share: Net income $ 69,486 $ 6,623 $ 43,630 Weighted average shares outstanding, included all dilutive potential shares 15,905,035 16,110,296 14,884,933 Diluted earnings per common share $ 4.37 $ 0.41 $ 2.93

Regulatory Capital Requiremen_2

Regulatory Capital Requirements and Restrictions on Subsidiary Cash (Tables)	12 Months Ended
	Dec. 31, 2021
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	A comparison of the Company’s and the Bank’s capital with the corresponding minimum regulatory requirements in effect as of December 31, 2021 and December 31, 2020, is presented below: Actual For Capital Adequacy Purposes With Capital Conservation Buffer(1) To Be Well Capitalized Under Prompt Corrective Action Provisions (dollars in thousands) Amount Ratio Amount Ratio (1) Amount Ratio At December 31, 2021: Consolidated: Total capital/risk weighted assets $ 615,060 13.09 % $ 493,283 10.50 % N/A N/A Tier 1 capital/risk weighted assets 508,687 10.83 399,324 8.50 N/A N/A Common equity tier 1 capital/risk weighted assets 466,747 9.94 328,855 7.00 N/A N/A Tier 1 leverage capital/average assets 508,687 8.67 234,745 4.00 N/A N/A MidWest One Bank: Total capital/risk weighted assets $ 584,348 12.46 % $ 492,436 10.50 % $ 468,987 10.00 % Tier 1 capital/risk weighted assets 542,975 11.58 398,639 8.50 375,189 8.00 Common equity tier 1 capital/risk weighted assets 542,975 11.58 328,291 7.00 304,841 6.50 Tier 1 leverage capital/average assets 542,975 9.25 234,686 4.00 293,358 5.00 At December 31, 2020: Consolidated: Total capital/risk weighted assets $ 572,437 13.41 % $ 448,068 10.50 % N/A N/A Tier 1 capital/risk weighted assets 456,526 10.70 362,722 8.50 N/A N/A Common equity tier 1 capital/risk weighted assets 414,763 9.72 298,712 7.00 N/A N/A Tier 1 leverage capital/average assets 456,526 8.50 214,795 4.00 N/A N/A MidWest One Bank: Total capital/risk weighted assets $ 547,558 12.89 % $ 446,113 10.50 % $ 424,870 10.00 % Tier 1 capital/risk weighted assets 500,981 11.79 361,139 8.50 339,896 8.00 Common equity tier 1 capital/risk weighted assets 500,981 11.79 297,409 7.00 276,165 6.50 Tier 1 leverage capital/average assets 500,981 9.35 214,251 4.00 271,992 5.00

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Schedule of Credit Commitments	The following table summarizes the Bank’s commitments as of the dates indicated: December 31, (in thousands) 2021 2020 Commitments to extend credit $ 1,014,397 $ 897,274 Commitments to sell loans 12,917 59,956 Standby letters of credit 16,342 34,212 Total $ 1,043,656 $ 991,442

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2021
Related Party Transactions [Abstract]
Schedule of Related Party Transactions	The following is an analysis of the changes in the loans to related parties during the years ended December 31, 2021 and 2020: Year Ended December 31, (in thousands) 2021 2020 Balance, beginning $ 16,816 $ 19,249 Advances 2,979 6,823 Change due to collections or loans sold (5,211) (9,256) Balance, ending $ 14,584 $ 16,816 Available credit $ 8,488 $ 8,355

Estimated Fair Value of Finan_2

Estimated Fair Value of Financial Instruments and Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Schedule of Assets and Liabilities Measured on Recurring Basis	The following table summarizes assets measured at fair value on a recurring basis as of December 31, 2021 and December 31, 2020 by level within the fair value hierarchy: Fair Value Measurement at December 31, 2021 Using (in thousands) Total Level 1 Level 2 Level 3 Assets: Available for sale debt securities: U.S. Government agencies and corporations $ 266 $ — $ 266 $ — State and political subdivisions 765,742 — 765,742 — Mortgage-backed securities 100,626 — 100,626 — Collateralized mortgage obligations 768,899 — 768,899 — Corporate debt securities 652,577 — 652,577 — Derivative assets 6,106 — 5,776 330 Mortgage servicing rights 6,532 — 6,532 — Liabilities: Derivative liabilities $ 6,741 $ — $ 6,741 $ — Fair Value Measurement at December 31, 2020 Using (in thousands) Total Level 1 Level 2 Level 3 Assets: Available for sale debt securities: U.S. Government agencies and corporations $ 361 $ — $ 361 $ — State and political subdivisions 628,346 — 628,346 — Mortgage-backed securities 94,018 — 94,018 — Collateralized mortgage obligations 565,836 — 565,836 — Corporate debt securities 368,820 — 368,820 — Derivative assets 10,796 — 10,796 — Mortgage servicing rights 5,137 — 5,137 — Liabilities: Derivative liabilities $ 13,267 $ — $ 13,267 $ —
Schedule of Valuation Techniques	The following table presents the valuation technique, significant unobservable inputs, and quantitative information about the unobservable inputs used for fair value measurements of the financial instruments held by the Company and categorized within Level 3 of the fair value hierarchy as of the dates indicated: Fair Value at (dollars in thousands) December 31, 2021 December 31, 2020 Valuation Techniques(s) Unobservable Input Range of Inputs Weighted Average Interest rate lock commitments $ 330 $ — Quoted or published market prices of similar instruments, adjusted for factors such as pull-through rate assumptions Pull-through rate 88 % - 100 % 88 % The following presents the valuation technique(s), unobservable inputs, and quantitative information about the unobservable inputs used for fair value measurements of the financial instruments held by the Company and categorized within Level 3 of the fair value hierarchy as of the date indicated: Fair Value at (dollars in thousands) December 31, 2021 December 31, 2020 Valuation Techniques(s) Unobservable Input Range of Inputs Weighted Average Collateral dependent individually analyzed loans $ 15,772 $ 34,265 Fair value of collateral Valuation adjustments 7 % 55 % 30 % Foreclosed assets, net 357 2,316 Fair value of collateral Valuation adjustments 8 % 63 % 22 %
Schedule of Fair Value Measured on Nonrecurring Basis	The following table presents assets measured at fair value on a nonrecurring basis as of the dates indicated: Fair Value Measurement at December 31, 2021 Using (in thousands) Total Level 1 Level 2 Level 3 Collateral dependent individually analyzed loans $ 15,772 $ — $ — $ 15,772 Foreclosed assets, net 357 — — 357 Fair Value Measurement at December 31, 2020 Using (in thousands) Total Level 1 Level 2 Level 3 Collateral dependent individually analyzed loans $ 34,265 $ — $ — $ 34,265 Foreclosed assets, net 2,316 — — 2,316
Schedule of Fair Value, by Balance Sheet Grouping	The carrying amount and estimated fair value of financial instruments at December 31, 2021 and December 31, 2020 were as follows: December 31, 2021 (in thousands) Carrying Estimated Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 203,830 $ 203,830 $ 203,830 $ — $ — Debt securities available for sale 2,288,110 2,288,110 — 2,288,110 — Loans held for sale 12,917 12,970 — 12,970 — Loans held for investment, net 3,196,312 3,207,314 — — 3,207,314 Interest receivable 20,117 20,117 — 20,117 — FHLB stock 10,157 10,157 — 10,157 — Derivative assets 6,106 6,106 — 5,776 330 Financial liabilities: Noninterest bearing deposits 1,005,369 1,005,369 1,005,369 — — Interest bearing deposits 4,109,150 4,105,858 3,186,901 918,957 — Short-term borrowings 181,368 181,368 181,368 — — Finance leases payable 951 951 — 951 — FHLB borrowings 48,113 48,947 — 48,947 — Junior subordinated notes issued to capital trusts 41,940 35,545 — 35,545 — Subordinated debentures 63,875 68,207 — 68,207 — Derivative liabilities 6,741 6,741 — 6,741 — December 31, 2020 (in thousands) Carrying Estimated Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 82,659 $ 82,659 $ 82,659 $ — $ — Debt securities available for sale 1,657,381 1,657,381 — 1,657,381 — Loans held for sale 59,956 60,039 — 60,039 — Loans held for investment, net 3,426,723 3,469,515 — — 3,469,515 Interest receivable 21,706 21,706 — 21,706 — FHLB stock 13,784 13,784 — 13,784 — Derivative assets 10,796 10,796 — 10,796 — Financial liabilities: Noninterest bearing deposits 910,655 910,655 910,655 — — Interest bearing deposits 3,636,394 3,640,365 2,800,046 840,319 Short-term borrowings 230,789 230,789 230,789 — — Finance leases payable 1,096 1,096 — 1,096 — FHLB borrowings 91,198 93,380 — 93,380 Junior subordinated notes issued to capital trusts 41,763 33,986 — 33,986 Subordinated debentures 74,634 77,228 — 77,228 Derivative liabilities 13,267 13,267 — 13,267 —

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Schedule of Lease Assets and Liabilities	Supplemental balance sheet information related to leases was as follows: (dollars in thousands) Classification December 31, 2021 December 31, 2020 Operating lease right-of-use assets Other assets $ 2,840 $ 3,613 Finance lease right-of-use asset Premises and equipment, net 446 542 Total right-of-use assets $ 3,286 $ 4,155 Operating lease liability Other liabilities $ 3,778 $ 4,583 Finance lease liability Long-term debt 951 1,096 Total lease liabilities $ 4,729 $ 5,679 Weighted-average remaining lease term Operating leases 9.13 years 8.82 years Finance lease 4.67 years 5.67 years Weighted-average discount rate Operating leases 4.13 % 3.92 % Finance lease 8.89 % 8.89 %
Schedule of Lease Costs and Other Information	The following table represents lease costs and other lease information. As the Company elected, for all classes of underlying assets, not to separate lease and non-lease components and instead to account for them as a single lease component, the variable lease cost primarily represents variable payments such as common area maintenance and utilities. Years Ended December 31, (in thousands) 2021 2020 2019 Lease Costs Operating lease cost $ 1,194 $ 1,236 $ 1,068 Variable lease cost 107 241 148 Interest on lease liabilities (1) 90 102 113 Amortization of right-of-use assets 95 96 96 Net lease cost $ 1,486 $ 1,675 $ 1,425 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,177 $ 1,146 $ 989 Operating cash flows from finance lease 90 102 113 Finance cash flows from finance lease 145 128 113 Supplemental non-cash information on lease liabilities: Right-of-use assets obtained in exchange for new operating lease liabilities 232 132 6,250 (1) Included in long-term debt interest expense in the Company’s consolidated statements of income. All other lease costs in this table are included in occupancy expense of premises, net.
Schedule of Finance Lease Liability Maturity	Future minimum payments for finance leases and operating leases with initial or remaining terms of one year or more as of December 31, 2021 were as follows: (in thousands) Finance Leases Operating Leases Twelve Months Ended: December 31, 2022 $ 240 $ 1,060 December 31, 2023 245 947 December 31, 2024 250 717 December 31, 2025 255 247 December 31, 2026 171 153 Thereafter — 1,820 Total undiscounted lease payment $ 1,161 $ 4,944 Amounts representing interest (210) (1,166) Lease liability $ 951 $ 3,778
Schedule of Operating Lease Liability Maturity	Future minimum payments for finance leases and operating leases with initial or remaining terms of one year or more as of December 31, 2021 were as follows: (in thousands) Finance Leases Operating Leases Twelve Months Ended: December 31, 2022 $ 240 $ 1,060 December 31, 2023 245 947 December 31, 2024 250 717 December 31, 2025 255 247 December 31, 2026 171 153 Thereafter — 1,820 Total undiscounted lease payment $ 1,161 $ 4,944 Amounts representing interest (210) (1,166) Lease liability $ 951 $ 3,778

Parent Company Only Financial_2

Parent Company Only Financial Information (Tables)	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
Schedule of Condensed Balance Sheet	The following are condensed balance sheets of MidWest One Financial Group, Inc. as of December 31, 2021 and December 31, 2020 (parent company only): As of December 31, (in thousands) 2021 2020 Balance Sheets Assets Cash $ 29,869 $ 25,078 Investment in subsidiaries 603,703 601,467 Income tax receivable — 499 Bank-owned life insurance — 5,252 Other assets 1,882 1,857 Total assets $ 635,454 $ 634,153 Liabilities and Shareholders’ Equity Long-term debt $ 105,815 $ 116,397 Income taxes payable 67 — Deferred income taxes 165 343 Other liabilities 1,932 2,163 Total liabilities 107,979 118,903 Shareholders’ equity Capital stock, preferred — — Capital stock, common 16,581 16,581 Additional paid-in capital 300,940 300,137 Retained earnings 243,365 188,191 Treasury stock (24,546) (14,251) Accumulated other comprehensive income (8,865) 24,592 Total shareholders’ equity 527,475 515,250 Total liabilities and shareholders’ equity $ 635,454 $ 634,153
Schedule of Condensed Income Statement	The following are condensed statements of income of MidWest One Financial Group, Inc. for the years ended December 31, 2021, 2020, and 2019 (parent company only): Year Ended December 31, (in thousands) 2021 2020 2019 Statements of Income Dividends received from subsidiaries $ 40,750 $ 3,500 $ 15,000 Interest income and dividends on investment securities 67 88 84 Investment securities gains (losses) 118 (136) 47 Interest on debt (5,306) (4,471) (3,439) Bank-owned life insurance income 62 124 130 Income from MidWest One Insurance Services, Inc. — — 943 Operating expenses (3,662) (2,723) (4,130) Income (loss) before income taxes and equity in subsidiaries’ undistributed income 32,029 (3,618) 8,635 Income tax benefit (1,764) (1,495) (1,394) Income (loss) before equity in subsidiaries’ undistributed income 33,793 (2,123) 10,029 Equity in subsidiaries’ undistributed income 35,693 8,746 33,601 Net income $ 69,486 $ 6,623 $ 43,630
Schedule of Condensed Cash Flow Statement	The following are condensed statements of cash flows of MidWest One Financial Group, Inc. for the years ended December 31, 2021, 2020, and 2019 (parent company only): Year Ended December 31, (in thousands) 2021 2020 2019 Statements of Cash Flows Cash flows from operating activities: Net income $ 69,486 $ 6,623 $ 43,630 Adjustments to reconcile net income to net cash provided by operating activities: Undistributed income of subsidiaries, net of dividends and distributions (35,693) (8,746) (33,601) Amortization 261 215 134 Decrease in deferred income taxes, net (355) (49) (43) Share-based compensation 2,153 1,380 1,156 Gain on sale of assets of MidWest One Insurance Services, Inc. — — (1,076) Increase in cash surrender value of bank-owned life insurance — (125) (128) Change in: Other assets 476 745 (403) Other liabilities (55) 1,674 (4) Net cash provided by operating activities $ 36,273 $ 1,717 $ 9,665 Cash flows from investing activities Proceeds from sales of debt securities available for sale $ 70 $ — $ 43 Purchase of debt securities available for sale (3) (9) (9) Proceeds from intercompany sale of bank-owned life insurance 5,252 — — Proceeds from sale of assets of MidWest One Insurance Services, Inc. — — 1,175 Cash and earnings transferred in dissolution of MidWest One Insurance Services, Inc. — — 631 Proceeds from sale of premises and equipment — 210 — Net cash paid in business acquisition — — (18,624) Net cash provided by (used in) investing activities $ 5,319 $ 201 $ (16,784) Cash flows from financing activities: Proceeds from issuance of subordinated debt $ — $ 65,000 $ — Payments of subordinated debt issuance costs (9) (1,303) — Redemption of subordinated debentures (10,835) — — Proceeds from other long-term debt — — 35,000 Payments of other long-term debt — (32,250) (10,250) Taxes paid relating to the release/lapse of restriction on RSUs (121) (149) (103) Dividends paid (14,282) (14,175) (11,476) Payments of stock issuance costs — — (323) Repurchase of common stock (11,554) (4,624) (4,679) Net cash (used in) provided by financing activities $ (36,801) $ 12,499 $ 8,169 Net increase in cash $ 4,791 $ 14,417 $ 1,050 Cash Balance: Beginning of period 25,078 10,661 9,611 Ending balance $ 29,869 $ 25,078 $ 10,661

Quarterly Results of Operatio_2

Quarterly Results of Operations (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2021
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	Three Months Ended December 31 September 30 June 30 March 31 (in thousands, except per share amounts) 2021 Interest income $ 43,556 $ 45,219 $ 43,787 $ 44,204 Interest expense 4,737 4,879 5,282 5,587 Net interest income 38,819 40,340 38,505 38,617 Credit loss expense (benefit) 622 (1,080) (2,144) (4,734) Noninterest income 11,229 9,182 10,218 11,824 Noninterest expense 30,444 29,778 28,670 27,700 Income before income taxes 18,982 20,824 22,197 27,475 Income tax expense 4,726 4,513 4,926 5,827 Net income $ 14,256 $ 16,311 $ 17,271 $ 21,648 Earnings per common share Basic $ 0.91 $ 1.03 $ 1.08 $ 1.35 Diluted $ 0.91 $ 1.03 $ 1.08 $ 1.35 2020 Interest income $ 45,470 $ 45,154 $ 46,758 $ 47,405 Interest expense 6,433 7,345 8,046 9,999 Net interest income 39,037 37,809 38,712 37,406 Credit loss (benefit) expense (3,041) 4,992 4,685 21,733 Noninterest income 10,626 9,570 8,269 10,155 Noninterest expense 31,915 59,939 28,038 30,001 Income (loss) before income tax expense (benefit) 20,789 (17,552) 14,258 (4,173) Income tax expense (benefit) 4,079 2,272 2,546 (2,198) Net income (loss) $ 16,710 $ (19,824) $ 11,712 $ (1,975) Earnings (loss) per common share Basic $ 1.04 $ (1.23) $ 0.73 $ (0.12) Diluted $ 1.04 $ (1.23) $ 0.73 $ (0.12)

Nature of Business and Signif_4

Nature of Business and Significant Accounting Policies - Nature of Business (Details) $ in Thousands	Jun. 30, 2019USD ($)	May 01, 2019USD ($)shares	Dec. 31, 2021USD ($)branch	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 01, 2020USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of MidWestOne Insurance Services, Inc.			$ 0	$ 0	$ 1,076
Threshold period past due, writeoff			180 days
Loans held for sale			$ 12,917	59,956
Total loans held for investment, net			3,196,312	3,426,723		$ 50,000
Goodwill impairment			$ 0	$ 31,500	$ 0
Commercial and Industrial
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Threshold period past due for non accrual of Interest			90 days
Residential Real Estate
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Threshold period past due for non accrual of Interest			120 days
ATBancorp
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of shares issued in merger (in shares) | shares		4,117,536
Share consideration		$ 116,000
Cash consideration		$ 34,800
MidWestOne Bank
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of branches | branch			56
MidWestOne Insurance Services, Inc
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of MidWestOne Insurance Services, Inc.	$ 1,100

Nature of Business and Signif_5

Nature of Business and Significant Accounting Policies - Premises and Equipment (Details)	12 Months Ended
	Dec. 31, 2021
Buildings and leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years
Buildings and leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	39 years
Furniture and equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Furniture and equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years

Nature of Business and Signif_6

Nature of Business and Significant Accounting Policies - Common Stock (Details) - Common Stock - USD ($)	6 Months Ended	11 Months Ended	22 Months Ended
	Dec. 31, 2021	Aug. 20, 2019	Jun. 22, 2021	Oct. 31, 2018
July 21 2016 Share Repurchase Program
Entity Information [Line Items]
Stock repurchase program, authorized amount				$ 5,000,000
Stock repurchase (in shares)		174,702
Stock repurchased		$ 4,700,000
August 20, 2019 Share Repurchase Program
Entity Information [Line Items]
Stock repurchase program, authorized amount		$ 10,000,000
Stock repurchase (in shares)			297,158
Stock repurchased			$ 7,900,000
Shares available for repurchase			2,100,000
June 22, 2021 Share Repurchase Program
Entity Information [Line Items]
Stock repurchase program, authorized amount			$ 15,000,000
Stock repurchase (in shares)	311,967
Stock repurchased	$ 9,200,000
Shares available for repurchase	$ 5,800,000

Nature of Business and Signif_7

Nature of Business and Significant Accounting Policies - Schedule of Cumulative Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule of Cumulative Other Comprehensive Income [Line Items]
Accumulated other comprehensive (loss) gain, net of tax	$ 527,475	$ 515,250	$ 508,982	$ 357,067
AOCI Attributable to Parent
Schedule of Cumulative Other Comprehensive Income [Line Items]
Unrealized (losses) gains on securities available for sale	(11,996)	33,278
Less: Tax effect	(3,131)	8,686
Accumulated other comprehensive (loss) gain, net of tax	$ (8,865)	$ 24,592	$ 4,372	$ (5,661)

Business Combinations - Narrati

Business Combinations - Narrative (Details) - ATBancorp - USD ($) $ in Thousands	May 01, 2019	Dec. 31, 2020
Business Acquisition [Line Items]
Percentage acquired	100.00%
Share consideration	$ 116,000
Cash consideration	$ 34,800
Goodwill purchase accounting adjustment		$ 2,060
Deferred income taxes accounting adjustments		$ 296

Business Combinations - Acquisi

Business Combinations - Acquisition-Related Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Compensation and employee benefits	$ 69,937	$ 66,397	$ 65,660
Occupancy expense of premises, net	9,274	9,348	8,647
Equipment	7,816	7,865	7,717
Legal and professional	5,256	6,153	8,049
Data processing	5,216	5,362	4,579
Other	6,577	8,723	10,217
First Bancshares Corp and ATBancorp
Business Acquisition [Line Items]
Compensation and employee benefits	0	0	5,435
Occupancy expense of premises, net	0	7	117
Equipment	18	0	366
Legal and professional	202	0	2,762
Data processing	0	44	90
Other	4	10	360
Total acquisition-related expenses	$ 224	$ 61	$ 9,130

Debt Securities - Schedule of A

Debt Securities - Schedule of Available for Sale Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 2,300,106	$ 1,624,103
Gross Unrealized Gains	18,996	34,592
Gross Unrealized Losses	30,992	1,314
Allowance for Credit Loss related to Debt Securities	0	0
Fair Value	2,288,110	1,657,381
U.S. Government agencies and corporations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	265	355
Gross Unrealized Gains	1	6
Gross Unrealized Losses	0	0
Allowance for Credit Loss related to Debt Securities	0	0
Fair Value	266	361
State and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	760,894	611,666
Gross Unrealized Gains	10,484	17,163
Gross Unrealized Losses	5,636	483
Allowance for Credit Loss related to Debt Securities	0	0
Fair Value	765,742	628,346
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	100,325	92,261
Gross Unrealized Gains	932	1,758
Gross Unrealized Losses	631	1
Allowance for Credit Loss related to Debt Securities	0	0
Fair Value	100,626	94,018
Collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	785,945	559,718
Gross Unrealized Gains	1,274	6,332
Gross Unrealized Losses	18,320	214
Allowance for Credit Loss related to Debt Securities	0	0
Fair Value	768,899	565,836
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	652,677	360,103
Gross Unrealized Gains	6,305	9,333
Gross Unrealized Losses	6,405	616
Allowance for Credit Loss related to Debt Securities	0	0
Fair Value	$ 652,577	$ 368,820

Debt Securities - Additional In

Debt Securities - Additional Information (Details) $ in Thousands	Dec. 31, 2021USD ($)security	Dec. 31, 2020USD ($)security
Debt Securities, Available-for-sale [Line Items]
Pledged securities	$ 582,200	$ 434,700
Securities in continuous unrealized loss position | security	238	57
Accumulated unrealized losses	$ 30,992	$ 1,314
Interest receivable	$ 20,117	$ 21,706
State and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Securities in continuous unrealized loss position | security	136	27
Accumulated unrealized losses	$ 5,636	$ 483
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Securities in continuous unrealized loss position | security	6	7
Accumulated unrealized losses	$ 631	$ 1
Residential Mortgage Backed Securities
Debt Securities, Available-for-sale [Line Items]
Securities in continuous unrealized loss position | security	44	8
Accumulated unrealized losses	$ 18,320	$ 214
Mortgage Backed Securities and Collateralized Mortgage Obligations
Debt Securities, Available-for-sale [Line Items]
Accumulated unrealized losses	$ 19,000
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Securities in continuous unrealized loss position | security	52	15
Accumulated unrealized losses	$ 6,405	$ 616
Available-for-sale Securities
Debt Securities, Available-for-sale [Line Items]
Interest receivable	$ 9,500	$ 7,300

Debt Securities - Available for

Debt Securities - Available for Sale Securities in Continuous Loss Position (Details) $ in Thousands	Dec. 31, 2021USD ($)security	Dec. 31, 2020USD ($)security
Debt Securities, Available-for-sale [Line Items]
Number of Securities | security	238	57
Less than 12 months, fair value	$ 1,264,758	$ 200,831
Less than 12 months, unrealized losses	26,107	895
12 months or more, fair value	104,478	7,376
12 months or more, unrealized loss	4,885	419
Fair Value	1,369,236	208,207
Unrealized Losses	$ 30,992	$ 1,314
State and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Number of Securities | security	136	27
Less than 12 months, fair value	$ 311,960	$ 31,489
Less than 12 months, unrealized losses	5,216	157
12 months or more, fair value	15,343	4,065
12 months or more, unrealized loss	420	326
Fair Value	327,303	35,554
Unrealized Losses	$ 5,636	$ 483
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Number of Securities | security	6	7
Less than 12 months, fair value	$ 43,319	$ 315
Less than 12 months, unrealized losses	631	1
12 months or more, fair value	80	0
12 months or more, unrealized loss	0	0
Fair Value	43,399	315
Unrealized Losses	$ 631	$ 1
Residential Mortgage Backed Securities
Debt Securities, Available-for-sale [Line Items]
Number of Securities | security	44	8
Less than 12 months, fair value	$ 605,729	$ 133,032
Less than 12 months, unrealized losses	15,693	214
12 months or more, fair value	61,984	0
12 months or more, unrealized loss	2,627	0
Fair Value	667,713	133,032
Unrealized Losses	$ 18,320	$ 214
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Number of Securities | security	52	15
Less than 12 months, fair value	$ 303,750	$ 35,995
Less than 12 months, unrealized losses	4,567	523
12 months or more, fair value	27,071	3,311
12 months or more, unrealized loss	1,838	93
Fair Value	330,821	39,306
Unrealized Losses	$ 6,405	$ 616

Debt Securities - Proceeds and

Debt Securities - Proceeds and Gross Realized Gains (Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Proceeds from sales of debt securities available for sale	$ 52,183	$ 27,391	$ 125,452
Gross realized gains from sales of debt securities available for sale	940	280	143
Gross realized losses from sales of debt securities available for sale	(791)	(123)	(56)
Net realized gain from sales of debt securities available for sale	149	157	87
Net gains from call or maturity of debt securities	$ 93	$ 27	$ 3

Debt Securities - Investments C

Debt Securities - Investments Classified by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Amortized Cost
Due in one year or less, amortized cost	$ 47,767
Due after one year through five years, amortized cost	400,857
Due after five years through ten years, amortized cost	648,678
Due after ten years, amortized cost	316,534
Total	1,413,836
Amortized cost	2,300,106	$ 1,624,103
Fair Value
Due in one year or less, estimated fair value	48,096
Due after one year through five years, estimated fair value	402,957
Due after five years through ten years, estimated fair value	646,062
Due after ten years, estimated fair value	321,470
Total	1,418,585
Fair Value	2,288,110	1,657,381
Mortgage-backed securities
Amortized Cost
Amortized cost	100,325	92,261
Fair Value
Fair Value	100,626	94,018
Collateralized mortgage obligations
Amortized Cost
Amortized cost	785,945	559,718
Fair Value
Fair Value	$ 768,899	$ 565,836

Loans Receivable and the Allo_3

Loans Receivable and the Allowance for Credit Losses - Composition of Loans by Lending Classification (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 01, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Loans, gross	$ 3,245,012	$ 3,482,223
Allowance for credit losses	(48,700)	(55,500)		$ (29,079)	$ (29,307)
Total loans held for investment, net	3,196,312	3,426,723	$ 50,000
Unpaid principal balance, loans pledged to the FHLB	816,000	830,200
Agricultural
Financing Receivable, Impaired [Line Items]
Loans, gross	103,417	116,392
Allowance for credit losses	(667)	(1,346)		(3,748)	(3,637)
Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Loans, gross	902,314	1,055,488
Allowance for credit losses	(17,294)	(15,689)		(8,394)	(7,478)
Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Loans, gross	1,704,541	1,732,361
Allowance for credit losses	(26,120)	(32,640)		(13,804)	(15,635)
Residential Real Estate
Financing Receivable, Impaired [Line Items]
Loans, gross	466,322	499,106
Allowance for credit losses	(4,010)	(4,882)		(2,685)	(2,349)
Consumer
Financing Receivable, Impaired [Line Items]
Loans, gross	68,418	78,876
Allowance for credit losses	(609)	(943)		$ (448)	$ (208)
Construction & development | Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Loans, gross	172,160	181,291
Farmland | Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Loans, gross	144,673	144,970
Multifamily | Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Loans, gross	244,503	256,525
Commercial real estate-other | Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Loans, gross	1,143,205	1,149,575
One- to four- family first liens | Residential Real Estate
Financing Receivable, Impaired [Line Items]
Loans, gross	333,308	355,684
One- to four- family junior liens | Residential Real Estate
Financing Receivable, Impaired [Line Items]
Loans, gross	$ 133,014	$ 143,422

Loans Receivable and the Allo_4

Loans Receivable and the Allowance for Credit Losses - Amortized Cost Basis Based on Delinquency Status (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	$ 3,245,012	$ 3,482,223
90 Days or More Past Due And Accruing	0	739
Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	3,218,658	3,447,188
30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	11,086	15,293
60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	3,032	1,901
90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	12,236	17,841
Agricultural
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	103,417	116,392
90 Days or More Past Due And Accruing	0	0
Agricultural | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	102,352	115,284
Agricultural | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	244	8
Agricultural | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	45
Agricultural | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	821	1,055
Commercial and Industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	902,314	1,055,488
90 Days or More Past Due And Accruing	0	106
Commercial and Industrial | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	899,423	1,051,727
Commercial and Industrial | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	529	477
Commercial and Industrial | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	134	333
Commercial and Industrial | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	2,228	2,951
Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,704,541	1,732,361
90 Days or More Past Due And Accruing	0	0
Commercial Real Estate | Construction & development
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	172,160	181,291
90 Days or More Past Due And Accruing	0	0
Commercial Real Estate | Farmland
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	144,673	144,970
90 Days or More Past Due And Accruing	0	0
Commercial Real Estate | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	244,503	256,525
90 Days or More Past Due And Accruing	0	0
Commercial Real Estate | Commercial real estate-other
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,143,205	1,149,575
90 Days or More Past Due And Accruing	0	0
Commercial Real Estate | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,685,173	1,707,397
Commercial Real Estate | Current | Construction & development
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	171,169	180,059
Commercial Real Estate | Current | Farmland
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	141,814	138,798
Commercial Real Estate | Current | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	243,117	256,525
Commercial Real Estate | Current | Commercial real estate-other
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,129,073	1,132,015
Commercial Real Estate | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	8,929	12,326
Commercial Real Estate | 30 - 59 Days Past Due | Construction & development
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	396	586
Commercial Real Estate | 30 - 59 Days Past Due | Farmland
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	116	226
Commercial Real Estate | 30 - 59 Days Past Due | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	0
Commercial Real Estate | 30 - 59 Days Past Due | Commercial real estate-other
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	8,417	11,514
Commercial Real Estate | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,692	684
Commercial Real Estate | 60 - 89 Days Past Due | Construction & development
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	42
Commercial Real Estate | 60 - 89 Days Past Due | Farmland
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	324
Commercial Real Estate | 60 - 89 Days Past Due | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,386	0
Commercial Real Estate | 60 - 89 Days Past Due | Commercial real estate-other
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	306	318
Commercial Real Estate | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	8,747	11,954
Commercial Real Estate | 90 Days or More Past Due | Construction & development
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	595	604
Commercial Real Estate | 90 Days or More Past Due | Farmland
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	2,743	5,622
Commercial Real Estate | 90 Days or More Past Due | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	0
Commercial Real Estate | 90 Days or More Past Due | Commercial real estate-other
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	5,409	5,728
Residential Real Estate
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	466,322	499,106
90 Days or More Past Due And Accruing	0	625
Residential Real Estate | One- to four- family first liens
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	333,308	355,684
90 Days or More Past Due And Accruing	0	625
Residential Real Estate | One- to four- family junior liens
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	133,014	143,422
90 Days or More Past Due And Accruing	0	0
Residential Real Estate | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	463,384	494,033
Residential Real Estate | Current | One- to four- family first liens
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	330,992	351,370
Residential Real Estate | Current | One- to four- family junior liens
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	132,392	142,663
Residential Real Estate | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,318	2,439
Residential Real Estate | 30 - 59 Days Past Due | One- to four- family first liens
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,057	2,062
Residential Real Estate | 30 - 59 Days Past Due | One- to four- family junior liens
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	261	377
Residential Real Estate | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,192	800
Residential Real Estate | 60 - 89 Days Past Due | One- to four- family first liens
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,057	566
Residential Real Estate | 60 - 89 Days Past Due | One- to four- family junior liens
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	135	234
Residential Real Estate | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	428	1,834
Residential Real Estate | 90 Days or More Past Due | One- to four- family first liens
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	202	1,686
Residential Real Estate | 90 Days or More Past Due | One- to four- family junior liens
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	226	148
Consumer
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	68,418	78,876
90 Days or More Past Due And Accruing	0	8
Consumer | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	68,326	78,747
Consumer | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	66	43
Consumer | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	14	39
Consumer | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	$ 12	$ 47

Loans Receivable and the Allo_5

Loans Receivable and the Allowance for Credit Losses - Nonaccrual Status and Interest Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Nonaccrual	$ 31,540	$ 41,950
Nonaccrual with no Allowance for Credit Losses	9,164	16,739
90 Days or More Past Due And Accruing	0	739
Financing receivable, nonaccrual, interest income	600	1,000
Agricultural
Financing Receivable, Past Due [Line Items]
Nonaccrual	2,090	2,584
Nonaccrual with no Allowance for Credit Losses	1,341	1,599
90 Days or More Past Due And Accruing	0	0
Commercial and Industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual	3,803	7,326
Nonaccrual with no Allowance for Credit Losses	1,341	4,349
90 Days or More Past Due And Accruing	0	106
Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Nonaccrual	23,625	29,344
Nonaccrual with no Allowance for Credit Losses	6,137	10,702
90 Days or More Past Due And Accruing	0	0
Commercial Real Estate | Construction & development
Financing Receivable, Past Due [Line Items]
Nonaccrual	595	1,145
Nonaccrual with no Allowance for Credit Losses	595	900
90 Days or More Past Due And Accruing	0	0
Commercial Real Estate | Farmland
Financing Receivable, Past Due [Line Items]
Nonaccrual	5,499	8,319
Nonaccrual with no Allowance for Credit Losses	4,156	7,266
90 Days or More Past Due And Accruing	0	0
Commercial Real Estate | Multifamily
Financing Receivable, Past Due [Line Items]
Nonaccrual	987	746
Nonaccrual with no Allowance for Credit Losses	323	39
90 Days or More Past Due And Accruing	0	0
Commercial Real Estate | Commercial real estate-other
Financing Receivable, Past Due [Line Items]
Nonaccrual	16,544	19,134
Nonaccrual with no Allowance for Credit Losses	1,063	2,497
90 Days or More Past Due And Accruing	0	0
Residential Real Estate
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,988	2,617
Nonaccrual with no Allowance for Credit Losses	345	76
90 Days or More Past Due And Accruing	0	625
Residential Real Estate | One- to four- family first liens
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,275	1,895
Nonaccrual with no Allowance for Credit Losses	345	75
90 Days or More Past Due And Accruing	0	625
Residential Real Estate | One- to four- family junior liens
Financing Receivable, Past Due [Line Items]
Nonaccrual	713	722
Nonaccrual with no Allowance for Credit Losses	0	1
90 Days or More Past Due And Accruing	0	0
Consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual	34	79
Nonaccrual with no Allowance for Credit Losses	0	13
90 Days or More Past Due And Accruing	$ 0	$ 8

Loans Receivable and the Allo_6

Loans Receivable and the Allowance for Credit Losses - Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
2021	$ 1,091,571	$ 1,695,721
2020	953,672	414,610
2019	258,153	256,008
2018	145,994	226,020
2017	166,651	177,553
Prior	258,653	318,557
Revolving Loans	370,318	393,754
Loans held for investment, net of unearned income	3,245,012	3,482,223
Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2021	178,567	168,496
2020	104,807	68,216
2019	37,491	65,356
2018	33,886	41,740
2017	21,685	43,530
Prior	76,558	80,161
Revolving Loans	79,723	107,162
Loans held for investment, net of unearned income	532,717	574,661
Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	383	248
2020	20	22
2019	216	832
2018	493	325
2017	29	277
Prior	777	1,447
Revolving Loans	105	170
Loans held for investment, net of unearned income	2,023	3,321
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	882,864	1,374,858
2020	759,876	311,856
2019	197,924	163,152
2018	84,212	171,183
2017	133,227	125,708
Prior	151,463	219,517
Revolving Loans	271,634	261,769
Loans held for investment, net of unearned income	2,481,200	2,628,043
Special mention / watch
Financing Receivable, Credit Quality Indicator [Line Items]
2021	22,675	88,719
2020	32,553	21,406
2019	6,367	14,506
2018	18,447	8,982
2017	9,029	5,349
Prior	17,939	5,790
Revolving Loans	10,391	12,461
Loans held for investment, net of unearned income	117,401	157,213
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021	7,082	63,399
2020	56,416	13,110
2019	16,155	12,162
2018	8,956	3,789
2017	2,681	2,689
Prior	11,916	11,638
Revolving Loans	8,465	12,191
Loans held for investment, net of unearned income	111,671	118,978
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	1
2020	0	0
2019	0	0
2018	0	1
2017	0	0
Prior	0	4
Revolving Loans	0	1
Loans held for investment, net of unearned income	0	7
Agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
2021	22,049	26,804
2020	9,579	8,692
2019	4,738	3,139
2018	1,481	2,436
2017	906	2,060
Prior	2,218	3,163
Revolving Loans	62,446	70,098
Loans held for investment, net of unearned income	103,417	116,392
Agricultural | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	20,145	17,836
2020	8,604	6,959
2019	4,367	2,764
2018	1,260	2,145
2017	885	1,386
Prior	947	1,833
Revolving Loans	58,119	60,802
Loans held for investment, net of unearned income	94,327	93,725
Agricultural | Special mention / watch
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,255	4,892
2020	148	1,083
2019	245	117
2018	0	108
2017	17	553
Prior	993	1,103
Revolving Loans	1,685	7,210
Loans held for investment, net of unearned income	4,343	15,066
Agricultural | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021	649	4,075
2020	827	650
2019	126	258
2018	221	183
2017	4	121
Prior	278	226
Revolving Loans	2,642	2,086
Loans held for investment, net of unearned income	4,747	7,599
Agricultural | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	1
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	1
Revolving Loans	0	0
Loans held for investment, net of unearned income	0	2
Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	301,561	554,595
2020	203,438	107,634
2019	58,294	58,480
2018	36,764	64,671
2017	64,635	39,767
Prior	92,538	95,902
Revolving Loans	145,084	134,439
Loans held for investment, net of unearned income	902,314	1,055,488
Commercial and Industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	297,285	546,171
2020	199,324	105,523
2019	56,258	57,055
2018	35,522	61,753
2017	60,294	38,695
Prior	75,342	92,526
Revolving Loans	132,323	120,498
Loans held for investment, net of unearned income	856,348	1,022,221
Commercial and Industrial | Special mention / watch
Financing Receivable, Credit Quality Indicator [Line Items]
2021	4,268	3,410
2020	2,342	572
2019	781	497
2018	470	2,261
2017	4,304	611
Prior	14,274	112
Revolving Loans	6,938	4,796
Loans held for investment, net of unearned income	33,377	12,259
Commercial and Industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021	8	5,014
2020	1,772	1,539
2019	1,255	928
2018	772	656
2017	37	461
Prior	2,922	3,261
Revolving Loans	5,823	9,144
Loans held for investment, net of unearned income	12,589	21,003
Commercial and Industrial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	1
2017	0	0
Prior	0	3
Revolving Loans	0	1
Loans held for investment, net of unearned income	0	5
Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment, net of unearned income	1,704,541	1,732,361
Commercial Real Estate | Construction & development
Financing Receivable, Credit Quality Indicator [Line Items]
2021	91,536	111,325
2020	37,977	27,402
2019	5,707	15,756
2018	1,611	2,696
2017	1,543	688
Prior	589	905
Revolving Loans	33,197	22,519
Loans held for investment, net of unearned income	172,160	181,291
Commercial Real Estate | Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
2021	56,367	60,390
2020	39,698	32,232
2019	20,355	14,898
2018	8,401	12,878
2017	7,019	8,905
Prior	11,021	14,368
Revolving Loans	1,812	1,299
Loans held for investment, net of unearned income	144,673	144,970
Commercial Real Estate | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
2021	105,722	166,261
2020	98,438	18,992
2019	19,234	17,805
2018	8,754	10,706
2017	6,414	11,622
Prior	5,668	19,581
Revolving Loans	273	11,558
Loans held for investment, net of unearned income	244,503	256,525
Commercial Real Estate | Commercial real estate-other
Financing Receivable, Credit Quality Indicator [Line Items]
2021	335,386	607,602
2020	459,715	151,420
2019	112,118	79,742
2018	54,604	90,568
2017	64,420	70,704
Prior	69,284	103,030
Revolving Loans	47,678	46,509
Loans held for investment, net of unearned income	1,143,205	1,149,575
Commercial Real Estate | Pass | Construction & development
Financing Receivable, Credit Quality Indicator [Line Items]
2021	90,662	109,885
2020	37,098	25,972
2019	4,942	14,994
2018	1,611	2,696
2017	1,543	679
Prior	578	876
Revolving Loans	33,197	22,519
Loans held for investment, net of unearned income	169,631	177,621
Commercial Real Estate | Pass | Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
2021	51,682	48,378
2020	33,870	25,022
2019	18,674	9,577
2018	5,105	10,490
2017	5,060	8,378
Prior	10,240	13,003
Revolving Loans	1,812	1,263
Loans held for investment, net of unearned income	126,443	116,111
Commercial Real Estate | Pass | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
2021	97,188	164,817
2020	96,389	18,992
2019	19,234	17,805
2018	2,754	10,706
2017	4,555	10,201
Prior	3,813	19,581
Revolving Loans	273	11,558
Loans held for investment, net of unearned income	224,206	253,660
Commercial Real Estate | Pass | Commercial real estate-other
Financing Receivable, Credit Quality Indicator [Line Items]
2021	325,902	487,771
2020	384,591	129,388
2019	94,449	60,957
2018	37,960	83,393
2017	60,890	66,369
Prior	60,543	91,698
Revolving Loans	45,910	45,129
Loans held for investment, net of unearned income	1,010,245	964,705
Commercial Real Estate | Special mention / watch | Construction & development
Financing Receivable, Credit Quality Indicator [Line Items]
2021	874	843
2020	0	298
2019	169	542
2018	0	0
2017	0	9
Prior	0	3
Revolving Loans	0	0
Loans held for investment, net of unearned income	1,043	1,695
Commercial Real Estate | Special mention / watch | Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
2021	3,105	8,088
2020	3,824	4,583
2019	0	935
2018	734	660
2017	292	361
Prior	223	237
Revolving Loans	0	0
Loans held for investment, net of unearned income	8,178	14,864
Commercial Real Estate | Special mention / watch | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
2021	7,871	345
2020	0	0
2019	0	0
2018	6,000	0
2017	1,859	59
Prior	544	0
Revolving Loans	0	0
Loans held for investment, net of unearned income	16,274	404
Commercial Real Estate | Special mention / watch | Commercial real estate-other
Financing Receivable, Credit Quality Indicator [Line Items]
2021	5,302	71,141
2020	26,239	14,870
2019	5,172	12,415
2018	11,243	5,953
2017	2,557	3,756
Prior	1,905	4,335
Revolving Loans	1,768	455
Loans held for investment, net of unearned income	54,186	112,925
Commercial Real Estate | Substandard | Construction & development
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	597
2020	879	1,132
2019	596	220
2018	0	0
2017	0	0
Prior	11	26
Revolving Loans	0	0
Loans held for investment, net of unearned income	1,486	1,975
Commercial Real Estate | Substandard | Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,580	3,924
2020	2,004	2,627
2019	1,681	4,386
2018	2,562	1,728
2017	1,667	166
Prior	558	1,128
Revolving Loans	0	36
Loans held for investment, net of unearned income	10,052	13,995
Commercial Real Estate | Substandard | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
2021	663	1,099
2020	2,049	0
2019	0	0
2018	0	0
2017	0	1,362
Prior	1,311	0
Revolving Loans	0	0
Loans held for investment, net of unearned income	4,023	2,461
Commercial Real Estate | Substandard | Commercial real estate-other
Financing Receivable, Credit Quality Indicator [Line Items]
2021	4,182	48,690
2020	48,885	7,162
2019	12,497	6,370
2018	5,401	1,222
2017	973	579
Prior	6,836	6,997
Revolving Loans	0	925
Loans held for investment, net of unearned income	78,774	71,945
Commercial Real Estate | Doubtful | Construction & development
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Loans held for investment, net of unearned income	0	0
Commercial Real Estate | Doubtful | Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Loans held for investment, net of unearned income	0	0
Commercial Real Estate | Doubtful | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Loans held for investment, net of unearned income	0	0
Commercial Real Estate | Doubtful | Commercial real estate-other
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Loans held for investment, net of unearned income	0	0
Residential Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment, net of unearned income	466,322	499,106
Residential Real Estate | One- to four- family first liens
Financing Receivable, Credit Quality Indicator [Line Items]
2021	115,891	118,162
2020	77,106	46,582
2019	27,324	43,471
2018	24,992	30,931
2017	16,425	37,555
Prior	66,239	69,734
Revolving Loans	5,331	9,249
Loans held for investment, net of unearned income	333,308	355,684
Residential Real Estate | One- to four- family first liens | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2021	115,539	117,923
2020	77,086	46,581
2019	27,279	42,875
2018	24,697	30,628
2017	16,425	37,407
Prior	65,676	68,501
Revolving Loans	5,331	9,249
Loans held for investment, net of unearned income	332,033	353,164
Residential Real Estate | One- to four- family first liens | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	352	239
2020	20	1
2019	45	596
2018	295	303
2017	0	148
Prior	563	1,233
Revolving Loans	0	0
Loans held for investment, net of unearned income	1,275	2,520
Residential Real Estate | One- to four- family junior liens
Financing Receivable, Credit Quality Indicator [Line Items]
2021	29,935	19,825
2020	13,335	7,973
2019	4,451	12,363
2018	5,307	6,169
2017	3,590	3,583
Prior	5,311	5,544
Revolving Loans	71,085	87,965
Loans held for investment, net of unearned income	133,014	143,422
Residential Real Estate | One- to four- family junior liens | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2021	29,904	19,818
2020	13,335	7,973
2019	4,295	12,140
2018	5,109	6,152
2017	3,574	3,467
Prior	5,104	5,354
Revolving Loans	70,980	87,795
Loans held for investment, net of unearned income	132,301	142,699
Residential Real Estate | One- to four- family junior liens | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	31	7
2020	0	0
2019	156	223
2018	198	17
2017	16	116
Prior	207	190
Revolving Loans	105	170
Loans held for investment, net of unearned income	713	723
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	33,124	30,757
2020	14,386	13,683
2019	5,932	10,354
2018	4,080	4,965
2017	1,699	2,669
Prior	5,785	6,330
Revolving Loans	3,412	10,118
Loans held for investment, net of unearned income	68,418	78,876
Consumer | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2021	33,124	30,755
2020	14,386	13,662
2019	5,917	10,341
2018	4,080	4,960
2017	1,686	2,656
Prior	5,778	6,306
Revolving Loans	3,412	10,118
Loans held for investment, net of unearned income	68,383	78,798
Consumer | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	2
2020	0	21
2019	15	13
2018	0	5
2017	13	13
Prior	7	24
Revolving Loans	0	0
Loans held for investment, net of unearned income	$ 35	$ 78

Loans Receivable and the Allo_7

Loans Receivable and the Allowance for Credit Losses - Activity in Allowance for Credit Losses (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Net charge-offs (recoveries)	$ (400,000)	$ 5,300,000
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	55,500,000	29,079,000	$ 29,307,000
Charge-offs	(2,332,000)	(6,793,000)	(8,390,000)
Recoveries	2,768,000	1,528,000	1,004,000
Credit loss (benefit) expense	(7,236,000)	27,702,000	7,158,000
Ending balance	48,700,000	55,500,000	29,079,000
Credit loss expense, off balance sheet credit exposure	(100,000)	700,000	0
Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		3,984,000
Ending balance			3,984,000
Loans Receivable
Financing Receivable, Allowance for Credit Loss [Line Items]
Accrued interest receivable	10,400,000	14,200,000
Agricultural
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,346,000	3,748,000	3,637,000
Charge-offs	(170,000)	(1,051,000)	(1,130,000)
Recoveries	149,000	130,000	32,000
Credit loss (benefit) expense	(658,000)	1,076,000	1,209,000
Ending balance	667,000	1,346,000	3,748,000
Agricultural | Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		(2,557,000)
Ending balance			(2,557,000)
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	15,689,000	8,394,000	7,478,000
Charge-offs	(1,015,000)	(2,502,000)	(4,774,000)
Recoveries	1,604,000	1,055,000	195,000
Credit loss (benefit) expense	1,016,000	6,014,000	5,495,000
Ending balance	17,294,000	15,689,000	8,394,000
Commercial and Industrial | Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		2,728,000
Ending balance			2,728,000
Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	32,640,000	13,804,000	15,635,000
Charge-offs	(602,000)	(2,317,000)	(1,537,000)
Recoveries	742,000	124,000	311,000
Credit loss (benefit) expense	(6,660,000)	19,729,000	(605,000)
Ending balance	26,120,000	32,640,000	13,804,000
Commercial Real Estate | Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		1,300,000
Ending balance			1,300,000
Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	4,882,000	2,685,000	2,349,000
Charge-offs	(107,000)	(186,000)	(229,000)
Recoveries	88,000	49,000	105,000
Credit loss (benefit) expense	(853,000)	284,000	460,000
Ending balance	4,010,000	4,882,000	2,685,000
Residential Real Estate | Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		2,050,000
Ending balance			2,050,000
Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	943,000	448,000	208,000
Charge-offs	(438,000)	(737,000)	(720,000)
Recoveries	185,000	170,000	361,000
Credit loss (benefit) expense	(81,000)	599,000	599,000
Ending balance	$ 609,000	943,000	448,000
Consumer | Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		$ 463,000
Ending balance			$ 463,000

Loans Receivable and the Allo_8

Loans Receivable and the Allowance for Credit Losses - Allowance for Loan Losses Based on Evaluation Method (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	$ 28,034	$ 37,340
Collectively evaluated for impairment	3,216,978	3,444,883
Loans held for investment, net of unearned income	3,245,012	3,482,223
Allowance for credit losses
Individually evaluated for impairment	3,098	3,075
Collectively evaluated for impairment	45,602	52,425
Total	48,700	55,500	$ 29,079	$ 29,307
Agricultural
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	1,341	2,088
Collectively evaluated for impairment	102,076	114,304
Loans held for investment, net of unearned income	103,417	116,392
Allowance for credit losses
Individually evaluated for impairment	0	66
Collectively evaluated for impairment	667	1,280
Total	667	1,346	3,748	3,637
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	3,005	6,582
Collectively evaluated for impairment	899,309	1,048,906
Loans held for investment, net of unearned income	902,314	1,055,488
Allowance for credit losses
Individually evaluated for impairment	681	799
Collectively evaluated for impairment	16,613	14,890
Total	17,294	15,689	8,394	7,478
Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	23,118	28,235
Collectively evaluated for impairment	1,681,423	1,704,126
Loans held for investment, net of unearned income	1,704,541	1,732,361
Allowance for credit losses
Individually evaluated for impairment	2,193	2,031
Collectively evaluated for impairment	23,927	30,609
Total	26,120	32,640	13,804	15,635
Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	570	427
Collectively evaluated for impairment	465,752	498,679
Loans held for investment, net of unearned income	466,322	499,106
Allowance for credit losses
Individually evaluated for impairment	224	179
Collectively evaluated for impairment	3,786	4,703
Total	4,010	4,882	2,685	2,349
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	0	8
Collectively evaluated for impairment	68,418	78,868
Loans held for investment, net of unearned income	68,418	78,876
Allowance for credit losses
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	609	943
Total	$ 609	$ 943	$ 448	$ 208

Loans Receivable and the Allo_9

Loans Receivable and the Allowance for Credit Losses - Primary Type of Collateral (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 01, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	$ 3,196,312	$ 3,426,723	$ 50,000
ACL Allocation	48,700	55,500		$ 29,079	$ 29,307
Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	667	1,346		3,748	3,637
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	17,294	15,689		8,394	7,478
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	26,120	32,640		13,804	15,635
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	4,010	4,882		2,685	2,349
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	609	943		$ 448	$ 208
Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	24,631	29,845
Real Estate | Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	916	516
Real Estate | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	408	667
Real Estate | Commercial Real Estate | Construction & development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	595	899
Real Estate | Commercial Real Estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	5,185	7,850
Real Estate | Commercial Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	987	746
Real Estate | Commercial Real Estate | Commercial real estate-other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	16,130	18,740
Real Estate | Residential Real Estate | One- to four- family first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	410	204
Real Estate | Residential Real Estate | One- to four- family junior liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	223
Real Estate | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	799	3,869
Equipment | Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	425	824
Equipment | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	374	3,037
Equipment | Commercial Real Estate | Construction & development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Equipment | Commercial Real Estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Equipment | Commercial Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Equipment | Commercial Real Estate | Commercial real estate-other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Equipment | Residential Real Estate | One- to four- family first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Equipment | Residential Real Estate | One- to four- family junior liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Equipment | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	8
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	2,604	3,626
Other | Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	748
Other | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	2,223	2,878
Other | Commercial Real Estate | Construction & development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Other | Commercial Real Estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Other | Commercial Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Other | Commercial Real Estate | Commercial real estate-other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	221	0
Other | Residential Real Estate | One- to four- family first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Other | Residential Real Estate | One- to four- family junior liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	160	0
Other | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	28,034	37,340
ACL Allocation	3,098	3,075
Collateral Pledged | Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	1,341	2,088
ACL Allocation	0	66
Collateral Pledged | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	3,005	6,582
ACL Allocation	681	799
Collateral Pledged | Commercial Real Estate | Construction & development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	595	899
ACL Allocation	0	0
Collateral Pledged | Commercial Real Estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	5,185	7,850
ACL Allocation	22	88
Collateral Pledged | Commercial Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	987	746
ACL Allocation	387	202
Collateral Pledged | Commercial Real Estate | Commercial real estate-other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	16,351	18,740
ACL Allocation	1,784	1,741
Collateral Pledged | Residential Real Estate | One- to four- family first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	410	204
ACL Allocation	64	132
Collateral Pledged | Residential Real Estate | One- to four- family junior liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	160	223
ACL Allocation	160	47
Collateral Pledged | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	8
ACL Allocation	$ 0	$ 0

Loans Receivable and the All_10

Loans Receivable and the Allowance for Credit Losses - TDR Disclosures (Details)	12 Months Ended
	Dec. 31, 2021USD ($)contract	Dec. 31, 2020USD ($)contract	Dec. 31, 2019USD ($)contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, TDR	$ 20,000,000	$ 11,000,000
Loans and leases receivable, impaired, commitment to lend	$ 8,000
Number of Contracts | contract	10	22	21
Pre-Modification Outstanding Recorded Investment	$ 12,327,000	$ 4,737,000	$ 7,270,000
Post-Modification Outstanding Recorded Investment	$ 12,233,000	$ 4,810,000	$ 7,269,000
TDR, subsequent to restructure, number of contracts | contract	3	6	12
TDR, subsequent to restructure, recorded investment	$ 796,000	$ 723,000	$ 742,000
COVID-19
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount of deferrals	$ 2,900,000
Commercial and Industrial | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	0	1	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 143,000	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 143,000	$ 0
Commercial and Industrial | Extended maturity date
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	0	2	3
Pre-Modification Outstanding Recorded Investment	$ 0	$ 480,000	$ 6,309,000
Post-Modification Outstanding Recorded Investment	$ 0	$ 480,000	$ 6,309,000
TDR, subsequent to restructure, number of contracts | contract	0	1	0
TDR, subsequent to restructure, recorded investment	$ 0	$ 142,000	$ 0
Commercial Real Estate | Extended maturity date | Commercial real estate-other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	2	3	0
Pre-Modification Outstanding Recorded Investment	$ 9,717,000	$ 759,000	$ 0
Post-Modification Outstanding Recorded Investment	$ 9,623,000	$ 808,000	$ 0
TDR, subsequent to restructure, number of contracts | contract	1	0	0
TDR, subsequent to restructure, recorded investment	$ 132,000	$ 0	$ 0
Commercial Real Estate | Other | Commercial real estate-other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	1	1	0
Pre-Modification Outstanding Recorded Investment	$ 44,000	$ 667,000	$ 0
Post-Modification Outstanding Recorded Investment	$ 44,000	$ 667,000	$ 0
Residential Real Estate | Interest Rate Reduction | One- to four- family first liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	1	0	0
Pre-Modification Outstanding Recorded Investment	$ 171,000	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 171,000	$ 0	$ 0
Residential Real Estate | Extended maturity date | One- to four- family first liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	3	3	4
Pre-Modification Outstanding Recorded Investment	$ 263,000	$ 274,000	$ 294,000
Post-Modification Outstanding Recorded Investment	$ 263,000	$ 278,000	$ 293,000
TDR, subsequent to restructure, number of contracts | contract	0	2	3
TDR, subsequent to restructure, recorded investment	$ 0	$ 203,000	$ 239,000
Residential Real Estate | Extended maturity date | One- to four- family junior liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	0	0	6
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 168,000
Post-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 168,000
TDR, subsequent to restructure, number of contracts | contract	0	0	2
TDR, subsequent to restructure, recorded investment	$ 0	$ 0	$ 30,000
Residential Real Estate | Other | One- to four- family first liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	1	3	0
Pre-Modification Outstanding Recorded Investment	$ 150,000	$ 317,000	$ 0
Post-Modification Outstanding Recorded Investment	$ 150,000	$ 317,000	$ 0
TDR, subsequent to restructure, number of contracts | contract	0	1	0
TDR, subsequent to restructure, recorded investment	$ 0	$ 169,000	$ 0
Agricultural | Extended maturity date
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	0	0	7
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 341,000
Post-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 341,000
TDR, subsequent to restructure, number of contracts | contract	0	0	6
TDR, subsequent to restructure, recorded investment	$ 0	$ 0	$ 315,000
Agricultural | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	0	4	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 848,000	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 858,000	$ 0
TDR, subsequent to restructure, number of contracts | contract	0	1	0
TDR, subsequent to restructure, recorded investment	$ 0	$ 59,000	$ 0
Farmland | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	2	0	0
Pre-Modification Outstanding Recorded Investment	$ 1,982,000	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 1,982,000	$ 0	$ 0
TDR, subsequent to restructure, number of contracts	1	0	0
TDR, subsequent to restructure, recorded investment	$ 1,000	$ 0	$ 0
Farmland | Extended maturity date
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	0	0	1
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 158,000
Post-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 158,000
TDR, subsequent to restructure, number of contracts | contract	0	0	1
TDR, subsequent to restructure, recorded investment	$ 0	$ 0	$ 158,000
Farmland | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	0	3	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 504,000	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 514,000	$ 0
TDR, subsequent to restructure, number of contracts | contract	0	1	0
TDR, subsequent to restructure, recorded investment	$ 0	$ 150,000	$ 0
Multifamily | Extended maturity date
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	0	1	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 39,000	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 39,000	$ 0
Multifamily | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	0	1	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 706,000	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 706,000	$ 0
TDR, subsequent to restructure, number of contracts | contract	1	0	0
TDR, subsequent to restructure, recorded investment	$ 663,000	$ 0	$ 0

Loans Receivable and the All_11

Loans Receivable and the Allowance for Credit Losses - Pre-ASC 326 Impaired Loan Disclosure (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	$ 12,699
Impaired financing receivable, with no related allowance, interest income, accrual method	306
Average Recorded Investment	6,219
Impaired financing receivable, with related allowance, interest income, accrual method	291
Impaired financing receivable, average recorded investment	18,918
Interest Income Recognized	597
Agricultural
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	2,388
Impaired financing receivable, with no related allowance, interest income, accrual method	43
Average Recorded Investment	1,500
Impaired financing receivable, with related allowance, interest income, accrual method	34
Impaired financing receivable, average recorded investment	3,888
Interest Income Recognized	77
Commercial and Industrial
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	5,323
Impaired financing receivable, with no related allowance, interest income, accrual method	0
Average Recorded Investment	2,186
Impaired financing receivable, with related allowance, interest income, accrual method	136
Impaired financing receivable, average recorded investment	7,509
Interest Income Recognized	136
Commercial Real Estate
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	4,648
Impaired financing receivable, with no related allowance, interest income, accrual method	261
Average Recorded Investment	2,268
Impaired financing receivable, with related allowance, interest income, accrual method	112
Impaired financing receivable, average recorded investment	6,916
Interest Income Recognized	373
Commercial Real Estate | Construction & development
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	244
Impaired financing receivable, with no related allowance, interest income, accrual method	37
Average Recorded Investment	26
Impaired financing receivable, with related allowance, interest income, accrual method	7
Impaired financing receivable, average recorded investment	270
Interest Income Recognized	44
Commercial Real Estate | Farmland
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	2,243
Impaired financing receivable, with no related allowance, interest income, accrual method	0
Average Recorded Investment	684
Impaired financing receivable, with related allowance, interest income, accrual method	5
Impaired financing receivable, average recorded investment	2,927
Interest Income Recognized	5
Commercial Real Estate | Multifamily
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	0
Impaired financing receivable, with no related allowance, interest income, accrual method	0
Average Recorded Investment	0
Impaired financing receivable, with related allowance, interest income, accrual method	0
Impaired financing receivable, average recorded investment	0
Interest Income Recognized	0
Commercial Real Estate | Commercial real estate-other
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	2,161
Impaired financing receivable, with no related allowance, interest income, accrual method	224
Average Recorded Investment	1,558
Impaired financing receivable, with related allowance, interest income, accrual method	100
Impaired financing receivable, average recorded investment	3,719
Interest Income Recognized	324
Residential Real Estate
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	323
Impaired financing receivable, with no related allowance, interest income, accrual method	2
Average Recorded Investment	265
Impaired financing receivable, with related allowance, interest income, accrual method	9
Impaired financing receivable, average recorded investment	588
Interest Income Recognized	11
Residential Real Estate | One- to four- family first liens
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	323
Impaired financing receivable, with no related allowance, interest income, accrual method	2
Average Recorded Investment	265
Impaired financing receivable, with related allowance, interest income, accrual method	9
Impaired financing receivable, average recorded investment	588
Interest Income Recognized	11
Residential Real Estate | One- to four- family junior liens
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	0
Impaired financing receivable, with no related allowance, interest income, accrual method	0
Average Recorded Investment	0
Impaired financing receivable, with related allowance, interest income, accrual method	0
Impaired financing receivable, average recorded investment	0
Interest Income Recognized	0
Consumer
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	17
Impaired financing receivable, with no related allowance, interest income, accrual method	0
Average Recorded Investment	0
Impaired financing receivable, with related allowance, interest income, accrual method	0
Impaired financing receivable, average recorded investment	17
Interest Income Recognized	$ 0

Derivatives, Hedging Activiti_3

Derivatives, Hedging Activities and Balance Sheet Offsetting - Derivatives and Hedging Activities (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Assets	$ 6,106,000	$ 10,796,000
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Notional Amount	24,802,000	25,559,000
Assets	424,000	34,000
Liabilities	1,400,000	2,452,000
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Notional Amount	410,642,000	361,676,000
Assets	5,682,000	10,762,000
Liabilities	5,341,000	10,815,000
Interest rate swaps | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Notional Amount	24,802,000	25,559,000
Assets	424,000	34,000
Liabilities	1,400,000	2,452,000
Interest rate swaps | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Notional Amount	356,636,000	347,380,000
Assets	5,352,000	10,758,000
Liabilities	5,363,000	10,807,000
RPAs - protection purchased | Not Designated as Hedging Instrument | RPAs - protection sold
Derivatives, Fair Value [Line Items]
Notional Amount	4,229,000	4,471,000
Assets	0	4,000
Liabilities	0	0
RPAs - protection purchased | Not Designated as Hedging Instrument | RPAs - protection purchased
Derivatives, Fair Value [Line Items]
Notional Amount	9,629,000	9,825,000
Assets	0	0
Liabilities	2,000	8,000
Interest rate lock commitments | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Notional Amount	17,438,000	0
Assets	330,000	0
Liabilities	0	0
Interest rate forward loan sales contracts | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Notional Amount	22,710,000	0
Assets	0	0
Liabilities	$ (24,000)	$ 0

Derivatives, Hedging Activiti_4

Derivatives, Hedging Activities and Balance Sheet Offsetting - Additional Information (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Feb. 29, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of derivatives in a net liability position, including accrued interest	$ 5,200,000
Cash collateral paid	3,250,000	$ 13,267,000
Assets needed for immediate settlement, aggregate fair value	5,200,000
Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	24,802,000	25,559,000
Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	410,642,000	361,676,000
Interest rate swaps | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	24,802,000	25,559,000
Interest rate swaps | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount			$ 30,000,000
Interest rate swaps | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	356,636,000	347,380,000
Interest Rate Lock Commitments On Mortgage Loans | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	17,400,000	54,100,000
Interest rate forward loan sales contracts | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 22,710,000	$ 0

Derivatives, Hedging Activiti_5

Derivatives, Hedging Activities and Balance Sheet Offsetting - Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Income									$ 0	$ (1,002)	$ 0
Interest Income	$ 38,819	$ 40,340	$ 38,505	$ 38,617	$ 39,037	$ 37,809	$ 38,712	$ 37,406	156,281	152,964	143,650
Amount reclassified from AOCI into income									0	(1,002)	0
Interest rate swaps | Designated as Hedging Instrument | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Interest Income									(439)	(335)	1
Other Income									0	0	0
Interest rate swaps | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivative									0	(1,002)
Interest rate swaps | Interest Expense | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Income									0	(1,002)
Interest rate swaps | Interest Income | Designated as Hedging Instrument | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items									(1,441)	1,308	891
Derivative designated as hedging instruments									1,052	(1,339)	(890)
Interest rate swaps | Interest Income | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from AOCI into income									0	(226)	0
Amount of loss reclassified from AOCI into income upon de-designation of cash flow hedge									0	0	0
Interest rate swaps | Other income | Designated as Hedging Instrument | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items									0	0	0
Derivative designated as hedging instruments									0	0	0
Interest rate swaps | Other income | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from AOCI into income									0	0	0
Amount of loss reclassified from AOCI into income upon de-designation of cash flow hedge									$ 0	$ (776)	$ 0

Derivatives, Hedging Activiti_6

Derivatives, Hedging Activities and Balance Sheet Offsetting - Hedged Items in Fair Value Hedging Relationship (Details) - Interest rate swaps - Designated as Hedging Instrument - Fair Value Hedging $ in Thousands	Dec. 31, 2021USD ($)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of the Hedged Assets	$ 25,801
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset	$ 978

Derivatives, Hedging Activiti_7

Derivatives, Hedging Activities and Balance Sheet Offsetting - Schedule of Other Derivatives Not Designated as Hedging Instruments (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)	$ 394	$ 228	$ (255)
Interest rate swaps | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)	38	126	(138)
RPAs | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)	2	102	(117)
Interest rate lock commitments | Loan revenue
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)	330	0	0
Interest rate forward loan sales contracts | Loan revenue
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)	$ 24	$ 0	$ 0

Derivatives, Hedging Activiti_8

Derivatives, Hedging Activities and Balance Sheet Offsetting - Offsetting Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Derivative Asset [Abstract]
Gross Amounts of Recognized Assets (Liabilities)	$ 6,106	$ 10,796
Gross Amounts Offset in the Balance Sheet	0	0
Net Amounts of Assets (Liabilities) presented in the Balance Sheet	6,106	10,796
Financial Instruments	0	0
Cash Collateral Received (Paid)	0	0
Net Assets (Liabilities)	6,106	10,796
Derivative Liability [Abstract]
Gross Amounts of Recognized Assets (Liabilities)	(6,741)	(13,267)
Gross Amounts Offset in the Balance Sheet	0	0
Net Amounts of Assets (Liabilities) presented in the Balance Sheet	(6,741)	(13,267)
Financial Instruments		0
Cash Collateral Received (Paid)	(3,250)	(13,267)
Net Assets (Liabilities)	$ (3,491)	$ 0

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Premises and equipment	$ 124,582	$ 124,978
Accumulated depreciation and amortization	41,090	38,577
Premises and equipment, net	83,492	86,401
Depreciation expense	4,800	5,100	$ 4,800
Land
Property, Plant and Equipment [Line Items]
Premises and equipment	14,144	14,144
Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Premises and equipment	89,141	88,783
Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment	20,978	21,969
Construction in process
Property, Plant and Equipment [Line Items]
Premises and equipment	$ 319	$ 82

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Changes in Carrying Value of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 62,477	$ 91,918
Foreign value adjustment	0	2,059
Goodwill impairment	0	(31,500)	$ 0
Total goodwill, end of period	$ 62,477	$ 62,477	$ 91,918

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Schedule of Intangible Assets (Excluding Goodwill) [Line Items]
Gross Carrying Amount	$ 49,710	$ 49,710
Accumulated Amortization	(36,865)	(31,508)
Total	12,845	18,202
Indefinite-lived trade name intangible	7,040	7,040
Core deposit intangible
Schedule of Intangible Assets (Excluding Goodwill) [Line Items]
Gross Carrying Amount	41,745	41,745
Accumulated Amortization	(30,629)	(26,440)
Total	11,116	15,305
Customer relationship intangible
Schedule of Intangible Assets (Excluding Goodwill) [Line Items]
Gross Carrying Amount	5,265	5,265
Accumulated Amortization	(3,692)	(2,630)
Total	1,573	2,635
Other
Schedule of Intangible Assets (Excluding Goodwill) [Line Items]
Gross Carrying Amount	2,700	2,700
Accumulated Amortization	(2,544)	(2,438)
Total	$ 156	$ 262

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Future Amortization Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
2022	$ 4,363
2023	3,402
2024	2,443
2025	1,547
2026	872
Thereafter	218
Total	12,845	$ 18,202
Core Deposit Intangible
Finite-Lived Intangible Assets [Line Items]
2022	3,487
2023	2,833
2024	2,180
2025	1,526
2026	872
Thereafter	218
Total	11,116	15,305
Customer Relationship Intangible
Finite-Lived Intangible Assets [Line Items]
2022	797
2023	518
2024	239
2025	19
2026	0
Thereafter	0
Total	1,573	2,635
Other
Finite-Lived Intangible Assets [Line Items]
2022	79
2023	51
2024	24
2025	2
2026	0
Thereafter	0
Total	$ 156	$ 262

Other Assets - Other Assets (De

Other Assets - Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Other Assets [Abstract]
Bank-owned life insurance	$ 85,372	$ 83,483
Interest receivable	20,117	21,706
FHLB stock	10,157	13,784
Mortgage servicing rights	6,532	5,137
Operating lease right-of-use assets	2,840	3,613
Income tax receivable	178	0
Deferred income taxes	13,893	3,845
Assets	6,106	10,796
Other receivables/assets	12,553	11,129
Other assets	$ 157,748	$ 153,493

Loans Serviced for Others (Deta

Loans Serviced for Others (Details) - USD ($) $ in Billions	Dec. 31, 2021	Dec. 31, 2020
Loans Serviced for Others [Abstract]
Loans serviced for others	$ 1.1	$ 1.1

Deposits - Deposit Types (Detai

Deposits - Deposit Types (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deposits [Abstract]
Noninterest bearing deposits	$ 1,005,369	$ 910,655
Interest checking deposits	1,619,136	1,351,641
Money market deposits	939,523	918,654
Savings deposits	628,242	529,751
Time deposits under $250	505,392	581,471
Time deposits of $250 or more	416,857	254,877
Total deposits	$ 5,114,519	$ 4,547,049

Deposits - Fiscal Year Maturity

Deposits - Fiscal Year Maturity (Details) $ in Thousands	Dec. 31, 2021USD ($)
Time Deposits, Fiscal Year Maturity [Abstract]
2022	$ 687,934
2023	124,162
2024	70,116
2025	11,967
2026	23,879
Thereafter	4,191
Total	$ 922,249

Deposits - Additional Informati

Deposits - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deposits [Abstract]
Domestic time deposit, brokered	$ 3.4	$ 7.8
Domestic non-time deposit, brokered	35.4	14.8
Deposits of government entities	$ 303.3	$ 156.7

Short-Term Borrowings (Details)

Short-Term Borrowings (Details) - USD ($)	Oct. 22, 2021	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Short-term Debt [Line Items]
Weighted average cost			0.24%	0.28%
Short-term borrowings			$ 181,368,000	$ 230,789,000
Pledged securities			$ 582,200,000	$ 434,700,000
Securities sold under agreements to repurchase
Short-term Debt [Line Items]
Weighted average cost			0.24%	0.28%
Short-term borrowings			$ 181,368,000	$ 174,289,000
Federal Home Loan Bank advances
Short-term Debt [Line Items]
Weighted average cost			0.00%	0.29%
Short-term borrowings			$ 0	$ 56,500,000
Federal funds purchased
Short-term Debt [Line Items]
Short-term borrowings			0	0
Unsecured line of credit, maximum borrowing capacity			155,000,000
Federal Reserve Bank borrowings
Short-term Debt [Line Items]
Financing capacity			60,200,000	67,700,000
Pledged securities			65,200,000	72,000,000
Unsecured line of credit
Short-term Debt [Line Items]
Short-term borrowings			$ 0	$ 0
Unsecured line of credit, maximum borrowing capacity		$ 25,000,000
Unused commitment fee percentage		0.30%
Unsecured line of credit | LIBOR
Short-term Debt [Line Items]
Interest rate		1.75%
Unsecured line of credit | SOFR Rate
Short-term Debt [Line Items]
Interest rate	1.70%

Long-Term Debt - Junior Subordi

Long-Term Debt - Junior Subordinated Notes (Details) - Junior Subordinated Debt - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Debt instrument, face amount	$ 44,847	$ 44,847
Debt instrument, book value	$ 41,940	41,763
Stated maturity date	5 years
ATBancorp Statutory Trust I
Debt Instrument [Line Items]
Debt instrument, face amount	$ 7,732	7,732
Debt instrument, book value	$ 6,888	$ 6,850
Interest Rate	1.88%	1.90%
ATBancorp Statutory Trust I | LIBOR
Debt Instrument [Line Items]
Interest Rate	1.68%	1.68%
ATBancorp Statutory Trust II
Debt Instrument [Line Items]
Debt instrument, face amount	$ 12,372	$ 12,372
Debt instrument, book value	$ 10,908	$ 10,850
Interest Rate	1.85%	1.87%
ATBancorp Statutory Trust II | LIBOR
Debt Instrument [Line Items]
Interest Rate	1.65%	1.65%
Barron Investment Capital Trust I
Debt Instrument [Line Items]
Debt instrument, face amount	$ 2,062	$ 2,062
Debt instrument, book value	$ 1,800	$ 1,767
Interest Rate	2.37%	2.39%
Barron Investment Capital Trust I | LIBOR
Debt Instrument [Line Items]
Interest Rate	2.15%	2.15%
Central Bancshares Capital Trust II
Debt Instrument [Line Items]
Debt instrument, face amount	$ 7,217	$ 7,217
Debt instrument, book value	$ 6,880	$ 6,832
Interest Rate	3.70%	3.72%
Central Bancshares Capital Trust II | LIBOR
Debt Instrument [Line Items]
Interest Rate	3.50%	3.50%
MidWestOne Statutory Trust II
Debt Instrument [Line Items]
Debt instrument, face amount	$ 15,464	$ 15,464
Debt instrument, book value	$ 15,464	$ 15,464
Interest Rate	1.79%	1.81%
MidWestOne Statutory Trust II | LIBOR
Debt Instrument [Line Items]
Interest Rate	1.59%	1.59%

Long-Term Debt - Subordinated D

Long-Term Debt - Subordinated Debentures (Details) - Subordinated Debt - USD ($) $ in Thousands	Jul. 28, 2020	Dec. 31, 2021	May 01, 2019
Debt Instrument [Line Items]
Face amount			$ 10,900
Interest rate			6.50%
Percentage of debentures categorized as tier 2 capital		100.00%	20.00%
Percentage of debentures, decrease to Tier 2 treatment, per year		20.00%
Decrease to Tier 2 treatment, period of recognition		5 years
5.75% Fixed To Floating Subordinated Notes
Debt Instrument [Line Items]
Face amount	$ 63,750
Interest rate	5.75%
5.75% Fixed To Floating Subordinated Notes | Private Placement
Debt Instrument [Line Items]
Sale of equity	$ 65,000

Long-Term Debt - Other Long-Ter

Long-Term Debt - Other Long-Term Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Weighted Average Rate	2.88%	2.00%
Balance	$ 49,064	$ 92,294
Finance lease payable
Debt Instrument [Line Items]
Weighted Average Rate	8.89%	8.89%
Balance	$ 951	$ 1,096
FHLB borrowings
Debt Instrument [Line Items]
Weighted Average Rate	2.76%	1.92%
Balance	$ 48,113	$ 91,198
Federal home loan, bank advances general debt obligations, disclosures maximum borrowing capacity as percentage of total assets	45.00%

Long-Term Debt - Federal Home L

Long-Term Debt - Federal Home Loan Bank Advances (Details) $ in Thousands	Dec. 31, 2021USD ($)
Weighted Average Rate
Due in 2022	2.68%
Due in 2023	2.79%
Due in 2024	3.15%
Amount
Due in 2022	$ 31,000
Due in 2023	11,000
Due in 2024	6,000
Total	48,000
Valuation adjustment from acquisition accounting	113
Total	$ 48,113

Income Taxes - Income Tax Compo

Income Taxes - Income Tax Components (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
Federal tax expense									$ 12,675	$ 7,376	$ 1,217
State tax expense									5,549	4,548	2,353
Deferred:
Deferred income tax expense									1,768	(5,225)	3,003
Total income tax provision	$ 4,726	$ 4,513	$ 4,926	$ 5,827	$ 4,079	$ 2,272	$ 2,546	$ (2,198)	$ 19,992	$ 6,699	$ 6,573

Income Taxes - Income Tax Recon

Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amount
Income tax based on statutory rate									$ 18,790	$ 2,798	$ 10,543
Tax-exempt interest									(3,500)	(3,053)	(2,392)
Bank-owned life insurance									(451)	(467)	(394)
State income taxes, net of federal income tax benefit									4,624	2,355	2,688
Goodwill impairment									0	6,615	0
Non-deductible acquisition expenses									41	0	177
General business credits									22	(1,751)	(4,090)
Other									466	202	41
Total income tax provision	$ 4,726	$ 4,513	$ 4,926	$ 5,827	$ 4,079	$ 2,272	$ 2,546	$ (2,198)	$ 19,992	$ 6,699	$ 6,573
% of Pretax Income
Income tax based on statutory rate									21.00%	21.00%	21.00%
Tax-exempt interest									(3.90%)	(22.90%)	(4.80%)
Bank-owned life insurance									(0.50%)	(3.50%)	(0.80%)
State income taxes, net of federal income tax benefit									5.20%	17.60%	5.30%
Goodwill impairment									0.00%	49.60%	0.00%
Non-deductible acquisition expenses									0.00%	0.00%	0.40%
General business credits									0.00%	(13.10%)	(8.10%)
Other									0.50%	1.50%	0.10%
Total income tax expense									22.30%	50.20%	13.10%

Income Taxes - Deferred Tax Ass

Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred income tax assets:
Allowance for credit losses	$ 13,732	$ 15,529
Deferred compensation	3,483	3,698
Net operating losses (state corporate tax differences)	5,624	5,134
Unrealized losses on investment securities	3,131	0
Accrued compensation	1,365	983
ROU liabilities	984	1,194
Other	2,003	2,656
Gross deferred tax assets	30,322	29,194
Deferred income tax liabilities:
Premises and equipment depreciation and amortization	4,356	4,573
Purchase accounting adjustments	2,880	3,613
Mortgage servicing rights	1,702	1,339
Unrealized gains on investment securities	0	8,685
ROU assets	930	1,144
Other	937	861
Gross deferred tax liabilities	10,805	20,215
Net deferred income tax asset	19,517	8,979
Valuation allowance	5,624	5,134
Net deferred tax asset	$ 13,893	$ 3,845

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Loss Carryforwards [Line Items]
Income tax based on statutory rate	21.00%	21.00%	21.00%
Unrecognized tax benefits	$ 0	$ 0
Iowa
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 58,100,000	$ 58,100,000

Employee Benefit Plans - Compan

Employee Benefit Plans - Company Contribution (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Maximum annual percentage of employee pay	4.00%
Defined contribution plan, cost recognized	$ 1,900	$ 1,900	$ 1,600
Employee stock ownership plan (ESOP), compensation expense	2,000	1,200	1,500
Health savings account	300
Cash surrender value of life insurance, employee benefit plans	$ 81,200	$ 79,000	$ 74,900
Tranche One
Defined Benefit Plan Disclosure [Line Items]
Employer percent match	100.00%
Percent of employee pay	3.00%
Tranche Two
Defined Benefit Plan Disclosure [Line Items]
Employer percent match	50.00%
Percent of employee pay	2.00%

Employee Benefit Plans - Rollfo

Employee Benefit Plans - Rollforwards (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SERP
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Balance, beginning	$ 1,395	$ 1,632	$ 1,867
Company contributions and interest	79	104	117
Cash payments made	(228)	(341)	(352)
Balance, ending	1,246	1,395	1,632
Salary Continuation Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Balance, beginning	4,771	5,452	1,104
Plans acquired in ATBancorp merger	0	0	11,058
Company contributions and interest	137	246	145
Cash payments made	(619)	(927)	(6,855)
Balance, ending	$ 4,289	$ 4,771	$ 5,452

Employee Benefit Plans - Deferr

Employee Benefit Plans - Deferred Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred compensation plan
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Deferred compensation arrangement with individual, fixed interest rate	4.00%
Deferred compensation arrangement with individual, variable rate	1.00%
Deferred compensation arrangement with individual, payout term of deferred balance after retirement	180 months
Deferred Compensation Arrangement with Individual, Postretirement Benefits Rollforward [Roll Forward]
Balance, beginning	$ 6,159	$ 7,021	$ 855
Plans acquired in ATBancorp merger	0	0	5,958
Employee deferrals	223	200	157
Company paid interest	142	560	395
Cash payments made	(644)	(1,622)	(344)
Balance, ending	5,880	6,159	7,021
Insurance benefit plan
Deferred Compensation Arrangement with Individual, Postretirement Benefits Rollforward [Roll Forward]
Balance, beginning	1,905	1,670	1,442
Company deferral expense	86	235	228
Balance, ending	$ 1,991	$ 1,905	$ 1,670

Stock Compensation Plans - Narr

Stock Compensation Plans - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 2.2	$ 1.4	$ 1.2
Share-based compensation, award vesting period	3 years		4 years
Share-based compensation, other than options, fair value of equity instruments vested in period	$ 1.6	$ 1.1	$ 1
Share-based compensation, nonvested awards other than options, compensation cost not yet recognized	$ 2.8
Share-based compensation, nonvested awards, period for recognition of unrecognized compensation cost	1 year 10 months 24 days
Restricted Stock Units (RSUs) | Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage	100.00%
Share-based compensation, award vesting period	1 year
Restricted Stock Units (RSUs) | Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage	33.00%		25.00%
Share-based compensation, award vesting period	1 year
Restricted Stock Units (RSUs) | Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage	33.00%		25.00%
Restricted Stock Units (RSUs) | Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage	33.00%		25.00%
Restricted Stock Units (RSUs) | Tranche Four
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage			25.00%
PRSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, award vesting period	3 years
2017 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, number of shares authorized (in shares)	500,000
Share-based compensation, number of shares available for grant (in shares)	250,697

Stock Compensation Plans - Sche

Stock Compensation Plans - Schedule of Restricted Stock Unit Activity (Details) - Restricted Stock Units (RSUs)	12 Months Ended
	Dec. 31, 2021$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares) | shares	124,270
Granted (in shares) | shares	84,066
Vested (in shares) | shares	(54,266)
Forfeited (in shares) | shares	(9,544)
Reinvested (in shares) | shares	3,556
Ending balance (in shares) | shares	148,082
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Beginning balance (in dollars per share) | $ / shares	$ 28.80
Granted (in dollars per share) | $ / shares	28.40
Vested (in dollars per share) | $ / shares	26.51
Forfeited (in dollars per share) | $ / shares	29.92
Reinvested (in dollars per share) | $ / shares	28.62
Ending balance (in dollars per share) | $ / shares	$ 29.33

Earnings per Share - Basic And

Earnings per Share - Basic And Diluted Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Basic Earnings Per Share:
Net income	$ 14,256	$ 16,311	$ 17,271	$ 21,648	$ 16,710	$ (19,824)	$ 11,712	$ (1,975)	$ 69,486	$ 6,623	$ 43,630
Weighted average shares outstanding (in shares)									15,876,727	16,102,226	14,869,952
Basic earnings per common share (in dollars per share)	$ 0.91	$ 1.03	$ 1.08	$ 1.35	$ 1.04	$ (1.23)	$ 0.73	$ (0.12)	$ 4.38	$ 0.41	$ 2.93
Diluted Earnings Per Share:
Net income	$ 14,256	$ 16,311	$ 17,271	$ 21,648	$ 16,710	$ (19,824)	$ 11,712	$ (1,975)	$ 69,486	$ 6,623	$ 43,630
Weighted average shares outstanding, included all dilutive potential shares (in shares)									15,905,035	16,110,296	14,884,933
Diluted earnings per common share (in dollars per share)	$ 0.91	$ 1.03	$ 1.08	$ 1.35	$ 1.04	$ (1.23)	$ 0.73	$ (0.12)	$ 4.37	$ 0.41	$ 2.93

Regulatory Capital Requiremen_3

Regulatory Capital Requirements and Restrictions on Subsidiary Cash (Details)	May 31, 2021USD ($)	Jul. 28, 2020USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	May 01, 2019
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Required cash reserve			$ 0	$ 0
Capital			$ 615,060,000	$ 572,437,000
Total capital to risk weighted assets			0.1309	0.1341
Capital required for capital adequacy purposes			$ 493,283,000	$ 448,068,000
Capital required for capital adequacy purposes to risk weighted assets			0.1050	0.1050
Tier one risk based capital			$ 508,687,000	$ 456,526,000
Tier one risk based capital to risk weighted assets			0.1083	0.1070
Tier one risk based capital required for capital adequacy purposes			$ 399,324,000	$ 362,722,000
Tier one risk based capital required for capital adequacy purposes to risk weighted assets			0.0850	0.0850
Common equity tier one capital			$ 466,747,000	$ 414,763,000
Common equity tier one capital to risk weighted assets			9.94%	9.72%
Common equity tier one capital required for capital adequacy purposes			$ 328,855,000	$ 298,712,000
Common equity tier one capital required for capital adequacy purposes to risk weighted assets			7.00%	7.00%
Tier one leverage capital			$ 508,687,000	$ 456,526,000
Tier one leverage capital to average assets			0.0867	0.0850
Tier one capital required for capital adequacy purposes			$ 234,745,000	$ 214,795,000
Tier one leverage capital required for capital adequacy purposes to average assets			0.0400	0.0400
Capital conservation buffer			2.50%	2.50%
Repayments of subordinated debt	$ 10,800,000		$ 10,835,000	$ 0	$ 0
Subordinated Debt
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Interest Rate						6.50%
5.75% Fixed To Floating Subordinated Notes | Subordinated Debt
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Interest Rate		5.75%
5.75% Fixed To Floating Subordinated Notes | Subordinated Debt | Private Placement
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Sale of equity		$ 65,000,000
MidWestOne Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital			$ 584,348,000	$ 547,558,000
Total capital to risk weighted assets			0.1246	0.1289
Capital required for capital adequacy purposes			$ 492,436,000	$ 446,113,000
Capital required for capital adequacy purposes to risk weighted assets			0.1050	0.1050
Capital required to be well capitalized			$ 468,987,000	$ 424,870,000
Capital required to be well capitalized to risk weighted assets			0.1000	0.1000
Tier one risk based capital			$ 542,975,000	$ 500,981,000
Tier one risk based capital to risk weighted assets			0.1158	0.1179
Tier one risk based capital required for capital adequacy purposes			$ 398,639,000	$ 361,139,000
Tier one risk based capital required for capital adequacy purposes to risk weighted assets			0.0850	0.0850
Tier one risk based capital required to be well capitalized			$ 375,189,000	$ 339,896,000
Tier one risk based capital required to be well capitalized to risk weighted assets			0.0800	0.0800
Common equity tier one capital			$ 542,975,000	$ 500,981,000
Common equity tier one capital to risk weighted assets			11.58%	11.79%
Common equity tier one capital required for capital adequacy purposes			$ 328,291,000	$ 297,409,000
Common equity tier one capital required for capital adequacy purposes to risk weighted assets			7.00%	7.00%
Common equity tier one risk based capital required to be well capitalized			$ 304,841,000	$ 276,165,000
Common equity tier one risk based capital required to be well capitalized to Risk weighted assets			6.50%	6.50%
Tier one leverage capital			$ 542,975,000	$ 500,981,000
Tier one leverage capital to average assets			0.0925	0.0935
Tier one capital required for capital adequacy purposes			$ 234,686,000	$ 214,251,000
Tier one leverage capital required for capital adequacy purposes to average assets			0.0400	0.0400
Tier one leverage capital required to be well capitalized			$ 293,358,000	$ 271,992,000
Tier one leverage capital required to be well capitalized to average assets			0.0500	0.0500

Commitments and Contingencies -

Commitments and Contingencies - Credit Commitments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Other Commitments [Line Items]
Other commitment	$ 1,043,656	$ 991,442
Commitments to sell loans
Other Commitments [Line Items]
Other commitment	12,917	59,956
Commitments to extend credit
Other Commitments [Line Items]
Other commitment	1,014,397	897,274
Standby letters of credit
Other Commitments [Line Items]
Other commitment	$ 16,342	$ 34,212

Commitments and Contingencies_2

Commitments and Contingencies - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Concentration Risk [Line Items]
Off-balance sheet, credit loss, liability	$ 4,000,000	$ 4,100,000
Credit loss expense, off balance sheet credit exposure	$ (100,000)	$ 700,000	$ 0
Loans Concentration | Credit Concentration Risk | Commercial Real Estate
Concentration Risk [Line Items]
Concentration risk, percentage	62.00%
Loans Concentration | Credit Concentration Risk | Agriculturally related loans
Concentration Risk [Line Items]
Concentration risk, percentage	8.00%
Investment Securities | Credit Concentration Risk | State and political subdivisions | Iowa
Concentration Risk [Line Items]
Concentration risk, percentage	17.00%
Investment Securities | Credit Concentration Risk | State and political subdivisions | Minnesota
Concentration Risk [Line Items]
Concentration risk, percentage	12.00%

Related Party Transactions - Ch

Related Party Transactions - Change in Loans to Related Parties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Loans and Leases Receivable, Related Parties [Roll Forward]
Balance, beginning	$ 16,816	$ 19,249
Advances	2,979	6,823
Change due to collections or loans sold	(5,211)	(9,256)
Balance, ending	14,584	16,816
Available credit	$ 8,488	$ 8,355

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Related Party Transactions [Abstract]
Related party deposit liabilities	$ 10.2	$ 8.8

Estimated Fair Value of Finan_3

Estimated Fair Value of Financial Instruments and Fair Value Measurements - Financial Assets and Liabilities Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	$ 2,288,110	$ 1,657,381
Assets	6,106	10,796
Mortgage servicing rights	6,532	5,137
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Assets	0	0
Liabilities	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	2,288,110	1,657,381
Assets	5,776	10,796
Liabilities	6,741	13,267
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Assets	330	0
Liabilities	0	0
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	6,106	10,796
Mortgage servicing rights	6,532	5,137
Liabilities	6,741	13,267
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	0
Mortgage servicing rights	0	0
Liabilities	0	0
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	5,776	10,796
Mortgage servicing rights	6,532	5,137
Liabilities	6,741	13,267
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	330	0
Mortgage servicing rights	0	0
Liabilities	0	0
U.S. Government agencies and corporations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	266	361
U.S. Government agencies and corporations | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	266	361
U.S. Government agencies and corporations | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
U.S. Government agencies and corporations | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	266	361
U.S. Government agencies and corporations | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	765,742	628,346
State and political subdivisions | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	765,742	628,346
State and political subdivisions | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
State and political subdivisions | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	765,742	628,346
State and political subdivisions | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	100,626	94,018
Mortgage-backed securities | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	100,626	94,018
Mortgage-backed securities | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Mortgage-backed securities | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	100,626	94,018
Mortgage-backed securities | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Residential Mortgage Backed Securities | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	768,899	565,836
Residential Mortgage Backed Securities | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Residential Mortgage Backed Securities | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	768,899	565,836
Residential Mortgage Backed Securities | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	652,577	368,820
Corporate debt securities | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	652,577	368,820
Corporate debt securities | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Corporate debt securities | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	652,577	368,820
Corporate debt securities | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	$ 0	$ 0

Estimated Fair Value of Finan_4

Estimated Fair Value of Financial Instruments and Fair Value Measurements - Valuation Techniques (Details) $ in Thousands	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets	$ 6,106	$ 10,796
Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets	6,106	10,796
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets	330	0
Level 3 | Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets	330	0
Interest rate lock commitments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets	$ 330	$ 0
Interest rate lock commitments | Minimum | Level 3 | Recurring | Measurement Input, Pull-Through Rate | Valuation, Market Approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0.88
Interest rate lock commitments | Maximum | Level 3 | Recurring | Measurement Input, Pull-Through Rate | Valuation, Market Approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	1
Interest rate lock commitments | Weighted Average | Level 3 | Recurring | Measurement Input, Pull-Through Rate | Valuation, Market Approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0.88

Estimated Fair Value of Finan_5

Estimated Fair Value of Financial Instruments and Fair Value Measurements - Assets and Liabilities Measured on a Nonrecurring Basis (Details) $ in Thousands	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreclosed assets, net	$ 357	$ 2,316
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans	15,772	34,265
Foreclosed assets, net	357	2,316
Nonrecurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans	0	0
Foreclosed assets, net	0	0
Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans	0	0
Foreclosed assets, net	0	0
Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans	15,772	34,265
Foreclosed assets, net	$ 357	$ 2,316
Collateral dependent individually analyzed loans | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.07
Collateral dependent individually analyzed loans | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.55
Collateral dependent individually analyzed loans | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.30
Foreclosed assets, net | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.08
Foreclosed assets, net | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.63
Foreclosed assets, net | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.22

Estimated Fair Value of Finan_6

Estimated Fair Value of Financial Instruments and Fair Value Measurements - Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financial assets:
Debt securities available for sale	$ 2,288,110	$ 1,657,381
Interest receivable	20,117	21,706
FHLB stock	10,157	13,784
Assets	6,106	10,796
Financial liabilities:
Interest bearing deposits	1,619,136	1,351,641
Finance leases payable	951	1,096
Carrying Amount
Financial assets:
Cash and cash equivalents	203,830	82,659
Debt securities available for sale	2,288,110	1,657,381
Loans held for sale	12,917	59,956
Loans held for investment, net	3,196,312	3,426,723
Interest receivable	20,117	21,706
FHLB stock	10,157	13,784
Assets	6,106	10,796
Financial liabilities:
Noninterest bearing deposits	1,005,369	910,655
Interest bearing deposits	4,109,150	3,636,394
Short-term borrowings	181,368	230,789
Finance leases payable	951	1,096
FHLB borrowings	48,113	91,198
Junior subordinated notes issued to capital trusts	41,940	41,763
Subordinated debentures	63,875	74,634
Liabilities	6,741	13,267
Estimated Fair Value
Financial assets:
Cash and cash equivalents	203,830	82,659
Debt securities available for sale	2,288,110	1,657,381
Loans held for sale	12,970	60,039
Loans held for investment, net	3,207,314	3,469,515
Interest receivable	20,117	21,706
FHLB stock	10,157	13,784
Assets	6,106	10,796
Financial liabilities:
Noninterest bearing deposits	1,005,369	910,655
Interest bearing deposits	4,105,858	3,640,365
Short-term borrowings	181,368	230,789
Finance leases payable	951	1,096
FHLB borrowings	48,947	93,380
Junior subordinated notes issued to capital trusts	35,545	33,986
Subordinated debentures	68,207	77,228
Liabilities	6,741	13,267
Level 1
Financial assets:
Cash and cash equivalents	203,830	82,659
Debt securities available for sale	0	0
Loans held for sale	0	0
Loans held for investment, net	0	0
Interest receivable	0	0
FHLB stock	0	0
Assets	0	0
Financial liabilities:
Noninterest bearing deposits	1,005,369	910,655
Interest bearing deposits	3,186,901	2,800,046
Short-term borrowings	181,368	230,789
Finance leases payable	0	0
FHLB borrowings	0	0
Junior subordinated notes issued to capital trusts	0	0
Subordinated debentures	0	0
Liabilities	0	0
Level 2
Financial assets:
Cash and cash equivalents	0	0
Debt securities available for sale	2,288,110	1,657,381
Loans held for sale	12,970	60,039
Loans held for investment, net	0	0
Interest receivable	20,117	21,706
FHLB stock	10,157	13,784
Assets	5,776	10,796
Financial liabilities:
Noninterest bearing deposits	0	0
Interest bearing deposits	918,957	840,319
Short-term borrowings	0	0
Finance leases payable	951	1,096
FHLB borrowings	48,947	93,380
Junior subordinated notes issued to capital trusts	35,545	33,986
Subordinated debentures	68,207	77,228
Liabilities	6,741	13,267
Level 3
Financial assets:
Cash and cash equivalents	0	0
Debt securities available for sale	0	0
Loans held for sale	0	0
Loans held for investment, net	3,207,314	3,469,515
Interest receivable	0	0
FHLB stock	0	0
Assets	330	0
Financial liabilities:
Noninterest bearing deposits	0	0
Interest bearing deposits	0
Short-term borrowings	0	0
Finance leases payable	0	0
FHLB borrowings	0
Junior subordinated notes issued to capital trusts	0
Subordinated debentures	0
Liabilities	$ 0	$ 0

Leases - Assets and Lease Liabi

Leases - Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Lease Right of Use Assets [Abstract]
Operating lease right-of-use assets	$ 2,840	$ 3,613
Finance lease right-of-use asset	446	542
Total right-of-use assets	3,286	4,155
Lease Liabilities [Abstract]
Operating lease liability	3,778	4,583
Finance lease liability	951	1,096
Total lease liabilities	$ 4,729	$ 5,679
Weighted-average remaining lease term
Operating leases	9 years 1 month 17 days	8 years 9 months 25 days
Finance lease	4 years 8 months 1 day	5 years 8 months 1 day
Weighted-average discount rate
Operating leases	4.13%	3.92%
Finance lease	8.89%	8.89%
Operating lease, right-of-use asset, statement of financial position [Extensible List]	Other assets	Other assets
Finance lease, right-of-use asset, statement of financial position [Extensible List]	Premises and equipment, net	Premises and equipment, net
Operating lease, liability, statement of financial position [Extensible List]	Other liabilities	Other liabilities
Finance lease, liability, statement of financial position [Extensible List]	Long-term debt	Long-term debt

Leases - Lease Costs (Details)

Leases - Lease Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lease Costs
Operating lease cost	$ 1,194	$ 1,236	$ 1,068
Variable lease cost	107	241	148
Interest on lease liabilities	90	102	113
Amortization of right-of-use assets	95	96	96
Net lease cost	1,486	1,675	1,425
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	1,177	1,146	989
Operating cash flows from finance lease	90	102	113
Finance cash flows from finance lease	145	128	113
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 232	$ 132	$ 6,250

Leases - Future Lease Payments

Leases - Future Lease Payments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Finance Leases
December 31, 2022	$ 240
December 31, 2023	245
December 31, 2024	250
December 31, 2025	255
December 31, 2026	171
Thereafter	0
Total undiscounted lease payment	1,161
Amounts representing interest	(210)
Lease liability	951	$ 1,096
Operating Leases
December 31, 2022	1,060
December 31, 2023	947
December 31, 2024	717
December 31, 2025	247
December 31, 2026	153
Thereafter	1,820
Total undiscounted lease payment	4,944
Amounts representing interest	(1,166)
Lease liability	$ 3,778	$ 4,583

Operating Segments - Narrative

Operating Segments - Narrative (Details)	12 Months Ended
	Dec. 31, 2021segment
Segment Reporting [Abstract]
Number of operating segments	1

Parent Company Only Financial_3

Parent Company Only Financial Information - Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assets:
Income tax receivable	$ 178	$ 0
Bank-owned life insurance	85,372	83,483
Other assets	157,748	153,493
Total assets	6,025,128	5,556,648
Liabilities
Income taxes payable	67	0
Other liabilities	46,887	54,869
Total liabilities	5,497,653	5,041,398
Shareholders’ equity
Capital stock, preferred	0	0
Capital stock, common	16,581	16,581
Additional paid-in capital	300,940	300,137
Retained earnings	243,365	188,191
Treasury stock	(24,546)	(14,251)
Accumulated other comprehensive income	(8,865)	24,592
Total shareholders' equity	527,475	515,250	$ 508,982	$ 357,067
Total liabilities and shareholders' equity	6,025,128	5,556,648
Parent Company
Assets:
Cash	29,869	25,078
Investment in subsidiaries	603,703	601,467
Income tax receivable	0	499
Bank-owned life insurance	0	5,252
Other assets	1,882	1,857
Total assets	635,454	634,153
Liabilities
Long-term debt	105,815	116,397
Deferred income taxes	165	343
Other liabilities	1,932	2,163
Total liabilities	107,979	118,903
Shareholders’ equity
Capital stock, preferred	0	0
Capital stock, common	16,581	16,581
Additional paid-in capital	300,940	300,137
Retained earnings	243,365	188,191
Treasury stock	(24,546)	(14,251)
Accumulated other comprehensive income	(8,865)	24,592
Total shareholders' equity	527,475	515,250
Total liabilities and shareholders' equity	$ 635,454	$ 634,153

Parent Company Only Financial_4

Parent Company Only Financial Information - Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Investment securities gains (losses)									$ 242	$ 157	$ 87
Bank-owned life insurance income									2,162	2,226	1,877
Operating expenses	$ (30,444)	$ (29,778)	$ (28,670)	$ (27,700)	$ (31,915)	$ (59,939)	$ (28,038)	$ (30,001)	(116,592)	(149,893)	(117,535)
Income tax benefit	4,726	4,513	4,926	5,827	4,079	2,272	2,546	(2,198)	19,992	6,699	6,573
Net income	$ 14,256	$ 16,311	$ 17,271	$ 21,648	$ 16,710	$ (19,824)	$ 11,712	$ (1,975)	69,486	6,623	43,630
Parent Company
Condensed Financial Statements, Captions [Line Items]
Dividends received from subsidiaries									40,750	3,500	15,000
Interest income and dividends on investment securities									67	88	84
Investment securities gains (losses)									118	(136)	47
Interest on debt									(5,306)	(4,471)	(3,439)
Bank-owned life insurance income									62	124	130
Income from MidWestOne Insurance Services, Inc.									0	0	943
Operating expenses									(3,662)	(2,723)	(4,130)
Income (loss) before income taxes and equity in subsidiaries’ undistributed income									32,029	(3,618)	8,635
Income tax benefit									(1,764)	(1,495)	(1,394)
Income (loss) before equity in subsidiaries’ undistributed income									33,793	(2,123)	10,029
Equity in subsidiaries’ undistributed income									35,693	8,746	33,601
Net income									$ 69,486	$ 6,623	$ 43,630

Parent Company Only Financial_5

Parent Company Only Financial Information - Cash Flows (Details) - USD ($) $ in Thousands	May 31, 2021	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income		$ 14,256	$ 16,311	$ 17,271	$ 21,648	$ 16,710	$ (19,824)	$ 11,712	$ (1,975)	$ 69,486	$ 6,623	$ 43,630
Adjustments to reconcile net income to net cash provided by operating activities:
Decrease (increase) in deferred income taxes, net										1,769	(5,225)	2,708
Share-based compensation										2,153	1,380	1,156
Gain on sale of assets of MidWestOne Insurance Services, Inc.										0	0	(1,076)
Increase in cash surrender value of bank-owned life insurance										(1,889)	(2,117)	(1,877)
Other assets										6,614	(5,065)	1,917
Net cash provided by operating activities										111,554	9,159	47,314
Cash flows from investing activities
Proceeds from sales of debt securities available for sale										52,183	27,391	125,452
Purchases of debt securities available for sale										(1,137,996)	(1,139,747)	(289,743)
Proceeds from intercompany sale of bank-owned life insurance										0	259	0
Proceeds from sale of assets of MidWestOne Insurance Services, Inc.										0	0	1,175
Proceeds from sale of premises and equipment										642	679	56
Net cash (used in) provided by investing activities										(428,318)	(867,441)	72,745
Cash flows from financing activities:
Proceeds from issuance of subordinated debt										0	65,000	0
Payments of subordinated debt issuance costs										(9)	(1,303)	0
Redemption of subordinated debentures	$ (10,800)									(10,835)	0	0
Proceeds from other long-term debt										0	0	35,000
Payments of other long-term debt										0	(32,250)	(10,250)
Taxes paid relating to the release/lapse of restriction on RSUs										(121)	(149)	(103)
Dividends paid										(14,282)	(14,175)	(11,476)
Payment of stock issuance costs										0	0	(323)
Repurchase of common stock										(11,554)	(4,624)	(4,679)
Net cash provided by (used in) financing activities										437,935	867,457	(92,055)
Net increase in cash and cash equivalents										121,171	9,175	28,004
Parent Company
Cash flows from operating activities:
Net income										69,486	6,623	43,630
Adjustments to reconcile net income to net cash provided by operating activities:
Undistributed income of subsidiaries, net of dividends and distributions										(35,693)	(8,746)	(33,601)
Amortization										261	215	134
Decrease (increase) in deferred income taxes, net										(355)	(49)	(43)
Share-based compensation										2,153	1,380	1,156
Gain on sale of assets of MidWestOne Insurance Services, Inc.										0	0	(1,076)
Increase in cash surrender value of bank-owned life insurance										0	(125)	(128)
Other assets										476	745	(403)
Other liabilities										(55)	1,674	(4)
Net cash provided by operating activities										36,273	1,717	9,665
Cash flows from investing activities
Proceeds from sales of debt securities available for sale										70	0	43
Purchases of debt securities available for sale										(3)	(9)	(9)
Proceeds from intercompany sale of bank-owned life insurance										5,252	0	0
Proceeds from sale of assets of MidWestOne Insurance Services, Inc.										0	0	1,175
Cash and earnings transferred in dissolution of MidWestOne Insurance Services, Inc.										0	0	631
Proceeds from sale of premises and equipment										0	210	0
Net cash paid in business acquisition										0	0	(18,624)
Net cash (used in) provided by investing activities										5,319	201	(16,784)
Cash flows from financing activities:
Proceeds from issuance of subordinated debt										0	65,000	0
Payments of subordinated debt issuance costs										(9)	(1,303)	0
Taxes paid relating to the release/lapse of restriction on RSUs										(121)	(149)	(103)
Dividends paid										(14,282)	(14,175)	(11,476)
Payment of stock issuance costs										0	0	(323)
Repurchase of common stock										(11,554)	(4,624)	(4,679)
Net cash provided by (used in) financing activities										(36,801)	12,499	8,169
Net increase in cash and cash equivalents										4,791	14,417	1,050
Cash Balance:
Beginning of period					$ 25,078				$ 10,661	25,078	10,661	9,611
Ending balance		$ 29,869				$ 25,078				$ 29,869	$ 25,078	$ 10,661

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent event - USD ($) $ / shares in Units, $ in Millions	Jan. 01, 2022	Mar. 08, 2022	Jan. 25, 2022
Subsequent Event [Line Items]
AFS transferred to held-to-maturity classifications, fair value	$ 1,250
Net unrealized after tax loss from transfer of AFS to held-to-maturity classification	$ 11.5
Common Stock
Subsequent Event [Line Items]
Dividend payable (in dollars per share)			$ 0.2375
Stock repurchased during period (in shares)		7,500
Stock repurchased during period, value		$ 0.2
Stock repurchase program, remaining authorized repurchase amount		$ 5.5

Quarterly Results of Operatio_3

Quarterly Results of Operations (unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Interest income	$ 43,556	$ 45,219	$ 43,787	$ 44,204	$ 45,470	$ 45,154	$ 46,758	$ 47,405	$ 176,766	$ 184,787	$ 182,441
Interest expense	4,737	4,879	5,282	5,587	6,433	7,345	8,046	9,999	20,485	31,823	38,791
Net interest income	38,819	40,340	38,505	38,617	39,037	37,809	38,712	37,406	156,281	152,964	143,650
Credit loss expense (benefit)	622	(1,080)	(2,144)	(4,734)	(3,041)	4,992	4,685	21,733	(7,336)	28,369	7,158
Noninterest income	11,229	9,182	10,218	11,824	10,626	9,570	8,269	10,155	42,453	38,620	31,246
Noninterest expense	30,444	29,778	28,670	27,700	31,915	59,939	28,038	30,001	116,592	149,893	117,535
Income before income tax expense	18,982	20,824	22,197	27,475	20,789	(17,552)	14,258	(4,173)	89,478	13,322	50,203
Income tax expense	4,726	4,513	4,926	5,827	4,079	2,272	2,546	(2,198)	19,992	6,699	6,573
Net income	$ 14,256	$ 16,311	$ 17,271	$ 21,648	$ 16,710	$ (19,824)	$ 11,712	$ (1,975)	$ 69,486	$ 6,623	$ 43,630
Earnings per share:
Basic (in dollars per share)	$ 0.91	$ 1.03	$ 1.08	$ 1.35	$ 1.04	$ (1.23)	$ 0.73	$ (0.12)	$ 4.38	$ 0.41	$ 2.93
Diluted (in dollars per share)	$ 0.91	$ 1.03	$ 1.08	$ 1.35	$ 1.04	$ (1.23)	$ 0.73	$ (0.12)	$ 4.37	$ 0.41	$ 2.93