MidWestOne Financial (MOFG) 10-Q 7 May 24 2024 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2024	May 03, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
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 Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		15,755,319
Entity Central Index Key	0001412665
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment Flag	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
ASSETS
Cash and due from banks	$ 68,430	$ 76,237
Interest earning deposits in banks	29,328	5,479
Federal funds sold	4	11
Total cash and cash equivalents	97,762	81,727
Debt securities available for sale at fair value	797,230	795,134
Held to maturity securities at amortized cost	1,064,939	1,075,190
Total securities	1,862,169	1,870,324
Loans held for sale	2,329	1,045
Gross loans held for investment	4,433,258	4,138,352
Unearned income, net	(18,612)	(11,405)
Loans held for investment, net of unearned income	4,414,646	4,126,947
Allowance for credit losses	(55,900)	(51,500)
Total loans held for investment, net	4,358,746	4,075,447
Premises and equipment, net	95,986	85,742
Goodwill	71,118	62,477
Other intangible assets, net	29,531	24,069
Foreclosed assets, net	3,897	3,929
Other assets	226,477	222,780
Total assets	6,748,015	6,427,540
LIABILITIES AND SHAREHOLDERS' EQUITY
Noninterest bearing deposits	920,764	897,053
Interest bearing deposits	4,664,472	4,498,620
Total deposits	5,585,236	5,395,673
Short-term borrowings	422,988	300,264
Long-term debt	122,066	123,296
Other liabilities	89,685	83,929
Total liabilities	6,219,975	5,903,162
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 15,750,471 and 15,694,306	16,581	16,581
Additional paid-in capital	300,845	302,157
Retained earnings	294,066	294,784
Treasury stock at cost, 830,546 and 886,711 shares	(22,648)	(24,245)
Accumulated other comprehensive loss	(60,804)	(64,899)
Total shareholders' equity	528,040	524,378
Total liabilities and shareholders' equity	$ 6,748,015	$ 6,427,540

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2024	Dec. 31, 2023
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	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)	15,750,471	15,694,306
Treasury stock (in shares)	830,546	886,711

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Interest income
Loans, including fees	$ 57,947	$ 46,490
Taxable investment securities	9,460	10,444
Tax-exempt investment securities	1,710	2,127
Other	418	244
Total interest income	69,535	59,305
Interest expense
Deposits	27,726	15,319
Short-term borrowings	4,975	1,786
Long-term debt	2,103	2,124
Total interest expense	34,804	19,229
Net interest income	34,731	40,076
Credit loss expense	4,689	933
Net interest income after credit loss expense	30,042	39,143
Noninterest income (loss)
Investment services and trust activities	3,503	2,933
Service charges and fees	2,144	2,008
Card revenue	1,943	1,748
Loan revenue	856	1,420
Bank-owned life insurance	660	602
Investment securities gains (losses), net	36	(13,170)
Other	608	413
Total noninterest income (loss)	9,750	(4,046)
Noninterest expense
Compensation and employee benefits	20,930	19,607
Occupancy expense of premises, net	2,813	2,746
Equipment	2,600	2,171
Legal and professional	2,059	1,736
Data processing	1,360	1,363
Marketing	598	986
Amortization of intangibles	1,637	1,752
FDIC insurance	942	749
Communications	196	261
Foreclosed assets, net	358	(28)
Other	2,072	1,976
Total noninterest expense	35,565	33,319
Income before income tax expense	4,227	1,778
Income tax expense	958	381
Net income	$ 3,269	$ 1,397
Per common share information
Earnings - basic (in dollars per share)	$ 0.21	$ 0.09
Earnings - diluted (in dollars per share)	0.21	0.09
Dividends paid (in dollars per share)	$ 0.2425	$ 0.2425

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 3,269	$ 1,397
Unrealized gain from AFS debt securities:
Unrealized net gain (loss) on debt securities AFS	2,151	(285)
Reclassification adjustment for (gains) losses included in net income	(36)	13,170
Reclassification of the change in fair value of AFS debt securities attributable to change in hedged risk	882	0
Income tax (expense)	(758)	(3,260)
Unrealized net gain on AFS debt securities, net of reclassification adjustments	2,239	9,625
Reclassification of AFS debt securities to HTM:
Amortization of the net unrealized loss from the reclassification of AFS debt securities to HTM	501	581
Income tax expense	(127)	(147)
Amortization of net unrealized loss from the reclassification of AFS debt securities to HTM, net	374	434
Unrealized gain from cash flow hedging instruments:
Unrealized net gains in cash flow hedging instruments	2,772	138
Reclassification adjustment for net gain in cash flow hedging instruments included in income	(788)	0
Income tax expense	(502)	(35)
Unrealized net gains on cash flow hedge instruments, net of reclassification adjustment	1,482	103
Other comprehensive income, net of tax	4,095	10,162
Comprehensive income	$ 7,364	$ 11,559

CONSOLIDATED STATEMENTS OF SHAR

CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2022	$ 492,793	$ 16,581	$ 302,085	$ 289,289	$ (26,115)	$ (89,047)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,397			1,397
Other comprehensive income	10,162					10,162
Release/lapse of restriction on RSUs	(549)		(1,767)	(118)	1,336
Share-based compensation	648		648
Dividends paid on common stock	(3,801)			(3,801)
Ending balance at Mar. 31, 2023	500,650	16,581	300,966	286,767	(24,779)	(78,885)
Beginning balance at Dec. 31, 2023	524,378	16,581	302,157	294,784	(24,245)	(64,899)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,269			3,269
Other comprehensive income	4,095					4,095
Release/lapse of restriction on RSUs	(523)		(1,953)	(167)	1,597
Share-based compensation	641		641
Dividends paid on common stock	(3,820)			(3,820)
Ending balance at Mar. 31, 2024	$ 528,040	$ 16,581	$ 300,845	$ 294,066	$ (22,648)	$ (60,804)

CONSOLIDATED STATEMENTS OF SH_2

CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Stockholders' Equity [Abstract]
Release/lapse of restriction on RSUs (in shares)	56,165	51,348
Dividends paid on common stock (in dollars per share)	$ 0.2425	$ 0.2425

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating Activities:
Net income	$ 3,269	$ 1,397
Adjustments to reconcile net income to net cash provided by operating activities:
Credit loss expense	4,689	933
Depreciation, amortization, and accretion	2,992	2,891
Net change in premises and equipment due to writedown or sale	79	(19)
Share-based compensation	641	648
Net (gain) loss on call or sale of debt securities available for sale	(36)	13,170
Net change in foreclosed assets due to writedown or sale	311	(31)
Net gain on sale of loans held for sale	(181)	(75)
Origination of loans held for sale	(9,386)	(9,976)
Proceeds from sales of loans held for sale	8,283	8,110
Increase in cash surrender value of bank-owned life insurance	(661)	(602)
Increase in deferred income taxes, net	(221)	(410)
Change in:
Other assets	(2,430)	14,434
Other liabilities	2,239	(12,871)
Net cash provided by operating activities	9,588	17,599
Investing Activities:
Purchases of equity securities	(250)	0
Proceeds from sales of debt securities available for sale	52,323	218,667
Proceeds from maturities and calls of debt securities available for sale	27,951	34,746
Purchases of debt securities available for sale	(28,376)	(54,690)
Proceeds from maturities and calls of debt securities held to maturity	10,268	11,798
Net increase in loans held for investment	(79,756)	(77,890)
Purchases of premises and equipment	(519)	(404)
Proceeds from sale of foreclosed assets	2	134
Proceeds from sale of premises and equipment	0	183
Net cash paid in business acquisition	(19,980)	0
Net cash (used in) provided by investing activities	(38,337)	132,544
Financing Activities:
Deposits	(34,797)	86,175
Short-term borrowings	85,224	(247,892)
Payments on finance lease liability	(50)	(43)
Payments of other long-term debt	(1,250)	(1,250)
Taxes paid relating to the release/lapse of restriction on RSUs	(523)	(549)
Dividends paid	(3,820)	(3,801)
Net cash provided by (used in) financing activities	44,784	(167,360)
Net change in cash and cash equivalents	16,035	(17,217)
Cash and cash equivalents at beginning of period	81,727	86,435
Cash and cash equivalents at end of period	97,762	69,218
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	33,369	16,599
Supplemental schedule of non-cash investing and financing activities:
Transfer of loans to foreclosed assets, net	281
Non-cash assets acquired:
Goodwill	71,118
DNVB
Non-cash assets acquired:
Investment securities	52,493	0
Total loans held for investment, net	207,095	0
Premises and equipment	11,091	0
Assets held for sale	2,379	0
Goodwill	8,641	0
Core deposit intangible	7,100	0
Other assets	4,987	0
Total non-cash assets acquired	293,786	0
Liabilities assumed:
Deposits	224,248	0
Short-term borrowings	37,500	0
Other liabilities	3,417	0
Total liabilities assumed	$ 265,165	$ 0

Nature of Business and Signific

Nature of Business and Significant Accounting Policies	3 Months Ended
	Mar. 31, 2024
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 The Company, an Iowa corporation formed in 1983, is a bank holding company under the BHCA and a financial holding company under the GLBA. Our principal executive offices are located at 102 South Clinton Street, Iowa City, Iowa 52240. The Company owns all of the outstanding common stock of MidWest One Bank, an Iowa state non-member bank chartered in 1934 with its main office in Iowa City, Iowa. We operate primarily through MidWest One Bank, our bank subsidiary. On January 31, 2024, the Company completed the acquisition of DNVB, a bank holding company whose wholly-owned banking subsidiary was BOD. Immediately following completion of the acquisition, BOD was merged with and into the Bank. As consideration for the merger, we paid cash in the amount of $32.6 million. Basis of Presentation The accompanying interim condensed consolidated financial statements are prepared in accordance with GAAP for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, certain disclosures accompanying annual consolidated financial statements are omitted. In the opinion of management, all significant intercompany accounts and transactions have been eliminated and adjustments, consisting solely of normal recurring accruals and considered necessary for the fair presentation of financial statements for the interim periods, have been included. The current period's results of operations are not necessarily indicative of the results that ultimately may be achieved for the year. The interim condensed consolidated financial statements and notes thereto should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Form 10-K for the year ended December 31, 2023, filed with the SEC on March 8, 2024. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect: (1) the reported amounts 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. These estimates are based on information available to management at the time the estimates are made. Actual results could differ from those estimates. The results for the three months ended March 31, 2024 may not be indicative of results for the year ending December 31, 2024, or for any other period. All significant accounting policies followed in the preparation of the quarterly financial statements are disclosed in the Annual Report on Form 10-K for the year ended December 31, 2023, filed with the SEC on March 8, 2024. Segment Reporting The 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, 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. Effect of New Financial Accounting Standards Accounting Guidance Pending Adoption at March 31, 2024 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. In addition, ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848 , deferred the sunset date of Topic 848 from December 31, 2022 to December 31, 2024, after which time entities will no longer be permitted to apply the relief in Topic 848. The adoption of ASU 2020-04 is not expected to have a material impact on the Company’s consolidated financial statements. On November 27, 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280) - Improvements to Reportable Segment Disclosures. Enhanced disclosures about significant segment expenses are included within this ASU. The amendments are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with an option to early adopt. The amendments should be applied retrospectively to all prior periods presented in the financial statements, with the segment expense categories and amounts disclosed in prior periods being based on the significant segment expense categories identified and disclosed in the period of adoption. The Company is currently evaluating the impact of ASU 2023-07. On December 14, 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740) - Improvements to Income Tax Disclosures . Additional transparency about income tax information through improvements to income tax disclosures, primarily related to the rate reconciliation and income taxes paid information, will be required. The amendments are effective for annual periods beginning after December 15, 2024, with an option to early adopt. The amendments should be applied on a prospective basis, with retrospective application being permitted. The Company is currently evaluating the impact of ASU 2023-09. Accounting Guidance Adopted in 2024 On March 29, 2023, the FASB issued ASU 2023-02, Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method . Under this ASU, if certain conditions are met, a reporting entity may elect to account for its tax equity investments by using the proportional amortization method regardless of the program from which it receives income tax credits. The amendments are effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years, with an option to early adopt. The amendments must be applied on either a modified retrospective or a retrospective basis, with certain exceptions for low-income-housing tax credit structures that are not accounted for using the proportional amortization method. The adoption of ASU 2023-02 was applied on a modified retrospective basis and did not have a material impact on the Company's consolidated financial statements.

Business Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2024
Business Combination and Asset Acquisition [Abstract]
Business Combinations	Business Combinations On January 31, 2024, the Company acquired 100% of the equity of DNVB through a merger and acquired its wholly-owned banking subsidiary, Bank of Denver, for cash consideration of $32.6 million. The primary reason for the acquisition was to increase our presence in Denver, Colorado. Immediately following the completion of the acquisition, BOD was merged with and into the Bank. 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 January 31, 2024 acquisition date net of any applicable tax effects using a methodology similar to the Company's legacy assets and liabilities (refer to Note 14. Fair Value of Financial Instruments and Fair Value Measurements for additional information regarding the fair value methodology). Initial accounting for the assets acquired and liabilities assumed was incomplete at March 31, 2024. Thus, such amounts recognized in the financial statements have been determined to be provisional. The excess of the consideration paid over the fair value of the net assets acquired is recorded as goodwill. This goodwill is not deductible for tax purposes. The revenue and earnings amount specific to DNVB since the acquisition date that are included in the consolidated results for the three months ended March 31, 2024 are not readily determinable. The disclosures of these amounts are impracticable due to the merging of certain processes and systems at the acquisition date. The table below summarizes the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed: (in thousands) January 31, 2024 Merger consideration Cash consideration $ 32,600 Identifiable net assets acquired, at fair value Assets acquired Cash and due from banks $ 462 Interest earning deposits in banks 3,517 Debt securities 52,493 Loans held for investment 207,095 Premises and equipment 13,470 Core deposit intangible 7,100 Other assets 4,987 Total assets acquired 289,124 Liabilities assumed Deposits $ (224,248) Short-term borrowings (37,500) Other liabilities (3,417) Total liabilities assumed (265,165) Identifiable net assets acquired, at fair value 23,959 Goodwill $ 8,641 For illustrative purposes only, the following table presents certain unaudited pro forma information for the three months ended March 31, 2024 and March 31, 2023. This unaudited, estimated pro forma information was calculated as if DNVB had been acquired as of the beginning of the year prior to the date of acquisition. This unaudited pro forma information combines the historical results of DNVB and the Company and includes adjustments for the estimated impact of certain fair value purchase accounting, interest expense, acquisition-related expenses, and income tax expense for the respective periods. The pro forma information is not indicative of what would have occurred had the acquisition occurred as of the beginning of the year prior to the acquisition. Additionally, MidWest One expects to achieve further operating cost savings and other business synergies, including revenue growth as a result of the acquisition, which are not reflected in the pro forma amounts that follow. As a result, actual amounts would have differed from the unaudited pro forma information presented. Unaudited Three Months Ended March 31, (in thousands, except per share amounts) 2024 2023 Total revenues $ 45,298 $ 38,963 Net income (loss) $ 6,466 $ (1,662) EPS - basic $ 0.41 $ (0.11) EPS - diluted $ 0.41 $ (0.11) The following table summarizes the DNVB acquisition-related expenses incurred during the three months ended March 31, 2024 and IOFB acquisition-related expenses incurred during the three months ended March 31, 2023, which are included in the respective income statement line items, for the periods indicated: Three Months Ended March 31, (in thousands) 2024 2023 Noninterest Expense Compensation and employee benefits $ 241 $ 70 Occupancy expense of premises, net 152 — Equipment 149 — Legal and professional 573 — Data processing 61 65 Marketing 32 — Communications 1 — Other 105 1 Total acquisition-related expenses $ 1,314 $ 136

Debt Securities

Debt Securities	3 Months Ended
	Mar. 31, 2024
Debt Securities [Abstract]
Debt Securities	Debt Securities At March 31, 2024, there was $6.6 million of net unrealized after tax loss remaining in accumulated other comprehensive loss, related to the transfer of securities classified as available for sale to held to maturity on January 1, 2022. The following tables summarize the amortized cost, gross unrealized gains and losses and the resulting fair value of debt securities as of the dates indicated: As of March 31, 2024 (in thousands) Amortized Cost (1) Gross Gross Allowance for Credit Loss related to Debt Securities Fair Value Available for Sale U.S. Treasury securities $ 247 $ — $ — $ — $ 247 State and political subdivisions 132,150 1 8,773 — 123,378 Mortgage-backed securities 5,347 3 151 — 5,199 Collateralized loan obligations 61,914 200 248 — 61,866 Collateralized mortgage obligations 201,242 — 22,620 — 178,622 Corporate debt securities 472,217 110 44,409 — 427,918 Total available for sale debt securities $ 873,117 $ 314 $ 76,201 $ — $ 797,230 Held to Maturity State and political subdivisions $ 531,961 $ — $ 71,245 $ — $ 460,716 Mortgage-backed securities 73,668 — 12,685 — 60,983 Collateralized mortgage obligations 459,310 — 105,365 — 353,945 Total held to maturity debt securities $ 1,064,939 $ — $ 189,295 $ — $ 875,644 (1) Amortized cost for the held to maturity securities includes $231 thousand of unamortized gain in state and political subdivisions, $74 thousand of unamortized gains in mortgage-backed securities and $9.3 million of unamortized losses in collateralized mortgage obligations related to the re-classification of securities from available for sale to held to maturity on January 1, 2022. As of December 31, 2023 (in thousands) Amortized Gross Gross Allowance for Credit Loss related to Debt Securities Fair Value Available for Sale State and political subdivisions $ 139,482 $ 2 $ 9,345 $ — $ 130,139 Mortgage-backed securities 5,448 5 142 — 5,311 Collateralized loan obligations 50,541 135 239 — 50,437 Collateralized mortgage obligations 190,304 — 21,108 — 169,196 Corporate debt securities 487,361 57 47,367 — 440,051 Total available for sale debt securities $ 873,136 $ 199 $ 78,201 $ — $ 795,134 Held to Maturity State and political subdivisions $ 532,422 $ — $ 65,932 $ — $ 466,490 Mortgage-backed securities 74,904 — 11,635 — 63,269 Collateralized mortgage obligations 467,864 — 102,360 — 365,504 Total held to maturity debt securities $ 1,075,190 $ — $ 179,927 $ — $ 895,263 (1) Amortized cost for the held to maturity securities includes $227 thousand of unamortized gain in state and political subdivisions, $58 thousand of unamortized gains in mortgage-backed securities and $9.7 million of unamortized losses in collateralized mortgage obligations related to the re-classification of securities from available for sale to held to maturity on January 1, 2022. Investment securities with a fair value of $1.24 billion and $1.16 billion at March 31, 2024 and December 31, 2023, respectively, were pledged on public deposits, securities sold under agreements to repurchase and for other purposes, as required or permitted by law. Accrued interest receivable on available for sale debt securities and held to maturity debt securities is recorded within 'Other Assets,' and is excluded from the estimate of credit losses. At March 31, 2024 the accrued interest receivable on available for sale debt securities and held to maturity debt securities totaled $5.8 million and $3.5 million, respectively. At December 31, 2023 the accrued interest receivable on available for sale debt securities and held to maturity debt securities totaled $5.5 million and $3.7 million, respectively. The following table presents debt securities AFS in an unrealized loss position for which an allowance for credit losses has not been recorded as of March 31, 2024, aggregated by investment category and length of time in a continuous loss position: As of March 31, 2024 Number of Securities 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) U.S. Treasury securities 1 $ 247 $ — $ — $ — $ 247 $ — State and political subdivisions 149 3,837 114 118,100 8,659 121,937 8,773 Mortgage-backed securities 21 5 — 4,808 151 4,813 151 Collateralized loan obligations 3 22,817 234 2,929 14 25,746 248 Collateralized mortgage obligations 22 54,982 718 123,640 21,902 178,622 22,620 Corporate debt securities 130 1,929 30 417,479 44,379 419,408 44,409 Total 326 $ 83,817 $ 1,096 $ 666,956 $ 75,105 $ 750,773 $ 76,201 As of March 31, 2024, 149 state and political subdivisions securities with total unrealized losses of $8.8 million were held by the Company. Management evaluated these securities through a process that included consideration of credit agency ratings and payment history. In addition, management evaluated securities by considering the yield spread to treasury securities and 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 March 31, 2024, 21 mortgage-backed securities, and 22 collateralized mortgage obligations with unrealized losses totaling $22.8 million were held by the Company. Management evaluated the payment history of these securities. In addition, management considered the implied U.S. government guarantee of these 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 March 31, 2024, 3 collateralized loan obligations with unrealized losses of $0.2 million were held by the Company. Management evaluated these securities through a process that included consideration of credit agency ratings, priority of cash flows and the amount of over-collateralization. In addition, management may evaluate securities by considering the yield spread to treasury securities and 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 March 31, 2024, 130 corporate debt securities with total unrealized losses of $44.4 million were held by the Company. Management evaluated these securities by considering credit agency ratings and payment history. In addition, management evaluated securities by considering the yield spread to treasury securities and the most recent financial information available. Based on this evaluation, management concluded that the decline in fair value was not attributable to 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 as of December 31, 2023, aggregated by investment category and length of time in a continuous loss position: As of December 31, 2023 Available for Sale Number of Securities Less than 12 Months 12 Months or More Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses (in thousands, except number of securities) State and political subdivisions 149 $ 8,417 $ 492 $ 114,713 $ 8,853 $ 123,130 $ 9,345 Mortgage-backed securities 19 — — 4,906 142 4,906 142 Collateralized loan obligations 2 17,696 239 — — 17,696 239 Collateralized mortgage obligations 20 6,278 90 127,792 21,018 134,070 21,108 Corporate debt securities 133 2,377 80 429,222 47,287 431,599 47,367 Total 323 $ 34,768 $ 901 $ 676,633 $ 77,300 $ 711,401 $ 78,201 The Company evaluates debt securities held to maturity for current expected credit losses. There were no debt securities held to maturity classified as nonaccrual or past due as of March 31, 2024. Held-to-maturity securities are evaluated on a quarterly basis using historical probability of default and loss given default information specific to the investment category. If this evaluation determines that credit losses exist, an allowance for credit loss is recorded and included in earnings as a component of credit loss expense. Based on this evaluation, management concluded that no allowance for credit loss for these securities was required. Proceeds and gross realized gains and losses on debt securities available for sale for the three months ended March 31, 2024 and 2023, were as follows: Three Months Ended (in thousands) March 31, 2024 March 31, 2023 Proceeds from sales of debt securities available for sale $ 52,323 $ 218,667 Gross realized losses from sales of debt securities available for sale (1) — (13,170) Net realized loss from sales of debt securities available for sale (1) $ — $ (13,170) (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 of debt securities of $36 thousand for the three months ended March 31, 2024, with no net realized gain from the call of debt securities recorded during the three months ended March 31, 2023. The contractual maturity distribution of investment debt securities at March 31, 2024, is shown below. Expected maturities of MBS, CLO 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 Held to Maturity (in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 60,692 $ 59,887 $ 2,510 $ 2,484 Due after one year through five years 371,630 342,646 150,788 137,380 Due after five years through ten years 145,334 125,889 250,580 214,093 Due after ten years 26,958 23,121 128,083 106,759 $ 604,614 $ 551,543 $ 531,961 $ 460,716 Mortgage-backed securities 5,347 5,199 73,668 60,983 Collateralized loan obligations 61,914 61,866 — — Collateralized mortgage obligations 201,242 178,622 459,310 353,945 Total $ 873,117 $ 797,230 $ 1,064,939 $ 875,644

Loans Receivable and the Allowa

Loans Receivable and the Allowance for Credit Losses	3 Months Ended
	Mar. 31, 2024
Receivables [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 (in thousands) March 31, 2024 December 31, 2023 Agricultural $ 113,029 $ 118,414 Commercial and industrial 1,105,718 1,075,003 Commercial real estate: Construction & development 403,571 323,195 Farmland 184,109 184,955 Multifamily 409,504 383,178 Commercial real estate-other 1,440,645 1,333,982 Total commercial real estate 2,437,829 2,225,310 Residential real estate: One- to four- family first liens 495,408 459,798 One- to four- family junior liens 182,001 180,639 Total residential real estate 677,409 640,437 Consumer 80,661 67,783 Loans held for investment, net of unearned income 4,414,646 4,126,947 Allowance for credit losses (55,900) (51,500) Total loans held for investment, net $ 4,358,746 $ 4,075,447 Loans with unpaid principal in the amount of $1.12 billion and $1.13 billion at March 31, 2024 and December 31, 2023, respectively, were pledged to the FHLB as collateral for borrowings. Non-accrual and Delinquent Status 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 for all loan types, except owner occupied residential real estate, which are moved to non-accrual at 120 days or more past due, 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 tables present the amortized cost basis of loans based on delinquency status: Age Analysis of Past-Due Financial Assets 90 Days or More Past Due And Accruing (in thousands) Current 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total March 31, 2024 Agricultural $ 112,185 $ 384 $ — $ 460 $ 113,029 $ — Commercial and industrial 1,087,725 360 194 17,439 1,105,718 — Commercial real estate: Construction and development 403,571 — — — 403,571 — Farmland 182,368 339 — 1,402 184,109 — Multifamily 409,504 — — — 409,504 — Commercial real estate-other 1,434,435 1,561 — 4,649 1,440,645 — Total commercial real estate 2,429,878 1,900 — 6,051 2,437,829 — Residential real estate: One- to four- family first liens 488,382 3,362 1,279 2,385 495,408 925 One- to four- family junior liens 180,461 567 335 638 182,001 — Total residential real estate 668,843 3,929 1,614 3,023 677,409 925 Consumer 80,306 242 71 42 80,661 42 Total $ 4,378,937 $ 6,815 $ 1,879 $ 27,015 $ 4,414,646 $ 967 Age Analysis of Past-Due Financial Assets 90 Days or More Past Due And Accruing (in thousands) Current 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total December 31, 2023 Agricultural $ 117,852 $ 338 $ — $ 224 $ 118,414 $ — Commercial and industrial 1,058,301 440 401 15,861 1,075,003 — Commercial real estate: Construction and development 323,165 30 — — 323,195 — Farmland 182,759 677 352 1,167 184,955 — Multifamily 383,178 — — — 383,178 — Commercial real estate-other 1,327,727 2,129 1,290 2,836 1,333,982 — Total commercial real estate 2,216,829 2,836 1,642 4,003 2,225,310 — Residential real estate: One- to four- family first liens 453,212 3,572 1,741 1,273 459,798 468 One- to four- family junior liens 179,339 356 690 254 180,639 — Total residential real estate 632,551 3,928 2,431 1,527 640,437 468 Consumer 67,622 118 28 15 67,783 — Total $ 4,093,155 $ 7,660 $ 4,502 $ 21,630 $ 4,126,947 $ 468 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) March 31, 2024 December 31, 2023 March 31, 2024 December 31, 2023 March 31, 2024 December 31, 2023 Agricultural $ 460 $ 235 $ 219 $ 12 $ — $ — Commercial and industrial 17,966 17,770 12,455 12,549 — — Commercial real estate: Construction and development — — — — — — Farmland 1,538 1,654 1,390 1,490 — — Multifamily — — — — — — Commercial real estate-other 4,926 3,441 2,486 853 — — Total commercial real estate 6,464 5,095 3,876 2,343 — — Residential real estate: One- to four- family first liens 2,294 1,888 853 455 925 468 One- to four- family junior liens 1,078 876 124 — — — Total residential real estate 3,372 2,764 977 455 925 468 Consumer 38 27 — — 42 — Total $ 28,300 $ 25,891 $ 17,527 $ 15,359 $ 967 $ 468 The interest income recognized on loans that were on nonaccrual for the three months ended March 31, 2024 and March 31, 2023 was $129 thousand and $56 thousand, 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, commercial real estate and non-owner occupied residential 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 owner occupied 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, in addition to the current period gross write-offs by class of receivable and vintage, based on the most recent analysis performed, as of March 31, 2024. As of March 31, 2024, there were no 'loss' rated credits. Term Loans by Origination Year Revolving Loans March 31, 2024 (in thousands) 2024 2023 2022 2021 2020 Prior Total Agricultural Pass $ 7,515 $ 9,909 $ 12,420 $ 7,156 $ 2,399 $ 1,847 $ 66,311 $ 107,557 Special mention / watch — 319 452 635 124 488 1,643 3,661 Substandard — 39 262 285 215 214 796 1,811 Doubtful — — — — — — — — Total $ 7,515 $ 10,267 $ 13,134 $ 8,076 $ 2,738 $ 2,549 $ 68,750 $ 113,029 Commercial and industrial Pass $ 27,582 $ 173,057 $ 200,277 $ 188,288 $ 112,151 $ 135,262 $ 175,914 $ 1,012,531 Special mention / watch 58 2,896 17,886 865 3,198 2,533 15,821 43,257 Substandard — 931 1,221 3,074 136 37,472 7,096 49,930 Doubtful — — — — — — — — Total $ 27,640 $ 176,884 $ 219,384 $ 192,227 $ 115,485 $ 175,267 $ 198,831 $ 1,105,718 CRE - Construction and development Pass $ 30,069 $ 123,679 $ 179,633 $ 49,896 $ 3,346 $ 2,451 $ 12,132 $ 401,206 Special mention / watch 623 263 — 454 — — 467 1,807 Substandard — 327 231 — — — — 558 Doubtful — — — — — — — — Total $ 30,692 $ 124,269 $ 179,864 $ 50,350 $ 3,346 $ 2,451 $ 12,599 $ 403,571 CRE - Farmland Pass $ 6,592 $ 26,072 $ 43,144 $ 45,254 $ 18,449 $ 19,303 $ 2,540 $ 161,354 Special mention / watch — — 6,695 2,405 5,804 1,070 719 16,693 Substandard — 383 382 1,285 1,186 2,796 30 6,062 Doubtful — — — — — — — — Total $ 6,592 $ 26,455 $ 50,221 $ 48,944 $ 25,439 $ 23,169 $ 3,289 $ 184,109 CRE - Multifamily Pass $ 456 $ 42,595 $ 97,726 $ 114,264 $ 69,748 $ 22,308 $ 5,352 $ 352,449 Special mention / watch 5,318 — 1,230 272 29,979 12,384 — 49,183 Substandard — — — 7,532 326 14 — 7,872 Doubtful — — — — — — — — Total $ 5,774 $ 42,595 $ 98,956 $ 122,068 $ 100,053 $ 34,706 $ 5,352 $ 409,504 CRE - Other Pass $ 9,484 $ 202,773 $ 316,522 $ 271,467 $ 257,023 $ 200,086 $ 58,986 $ 1,316,341 Special mention / watch 454 8,093 6,675 3,227 4,426 7,295 3,987 34,157 Substandard 1,670 284 26,247 18,401 19,018 24,527 — 90,147 Doubtful — — — — — — — — Total $ 11,608 $ 211,150 $ 349,444 $ 293,095 $ 280,467 $ 231,908 $ 62,973 $ 1,440,645 RRE - One- to four- family first liens Pass / Performing $ 17,533 $ 61,643 $ 137,014 $ 95,695 $ 53,935 $ 102,592 $ 16,707 $ 485,119 Special mention / watch — 722 710 35 607 1,772 — 3,846 Substandard / Nonperforming — 1,369 190 785 104 3,995 — 6,443 Doubtful — — — — — — — — Total $ 17,533 $ 63,734 $ 137,914 $ 96,515 $ 54,646 $ 108,359 $ 16,707 $ 495,408 RRE - One- to four- family junior liens Performing $ 4,210 $ 21,539 $ 28,673 $ 17,968 $ 7,254 $ 9,781 $ 91,497 $ 180,922 Nonperforming — — 406 — 23 650 — 1,079 Total $ 4,210 $ 21,539 $ 29,079 $ 17,968 $ 7,277 $ 10,431 $ 91,497 $ 182,001 Consumer Performing $ 7,922 $ 30,997 $ 16,110 $ 8,941 $ 3,898 $ 7,990 $ 4,765 $ 80,623 Nonperforming — 16 21 — — 1 — 38 Total $ 7,922 $ 31,013 $ 16,131 $ 8,941 $ 3,898 $ 7,991 $ 4,765 $ 80,661 Term Loans by Origination Year Revolving Loans March 31, 2024 (in thousands) 2024 2023 2022 2021 2020 Prior Total Total by Credit Quality Indicator Category Pass $ 99,231 $ 639,728 $ 986,736 $ 772,020 $ 517,051 $ 483,849 $ 337,942 $ 3,836,557 Special mention / watch 6,453 12,293 33,648 7,893 44,138 25,542 22,637 152,604 Substandard 1,670 3,333 28,533 31,362 20,985 69,018 7,922 162,823 Doubtful — — — — — — — — Performing 12,132 52,536 44,783 26,909 11,152 17,771 96,262 261,545 Nonperforming — 16 427 — 23 651 — 1,117 Total $ 119,486 $ 707,906 $ 1,094,127 $ 838,184 $ 593,349 $ 596,831 $ 464,763 $ 4,414,646 Term Loans by Origination Year Revolving Loans March 31, 2024 2024 2023 2022 2021 2020 Prior Total Year-to-date Current Period Gross Write-offs Agricultural $ — $ — $ — $ 4 $ — $ — $ — $ 4 Commercial and industrial — — 128 129 29 13 — 299 CRE - Construction and development — — — — — — — — CRE - Farmland — — — — — — — — CRE - Multifamily — — — — — — — — CRE - Other — — — — — 35 — 35 RRE - One-to-four-family first liens — — — 19 — — — 19 RRE - One-to-four-family junior liens — — — — — — — — Consumer — 276 7 3 4 — 290 Total Current Period Gross Write-offs $ — $ 276 $ 135 $ 155 $ 29 $ 52 $ — $ 647 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, 2023. As of December 31, 2023, there were no 'loss' rated credits. Term Loans by Origination Year Revolving Loans December 31, 2023 (in thousands) 2023 2022 2021 2020 2019 Prior Total Agricultural Pass $ 11,859 $ 12,149 $ 8,352 $ 2,752 $ 689 $ 1,139 $ 71,680 $ 108,620 Special mention / watch 266 550 670 91 5 522 3,705 5,809 Substandard 709 193 302 208 — 224 2,349 3,985 Doubtful — — — — — — — — Total $ 12,834 $ 12,892 $ 9,324 $ 3,051 $ 694 $ 1,885 $ 77,734 $ 118,414 Commercial and industrial Pass $ 176,021 $ 224,924 $ 193,011 $ 117,326 $ 25,555 $ 116,661 $ 147,690 $ 1,001,188 Special mention / watch 2,541 416 3,209 3,385 193 272 14,692 24,708 Substandard 897 2,921 2,010 561 8,507 29,432 4,779 49,107 Doubtful — — — — — — — — Total $ 179,459 $ 228,261 $ 198,230 $ 121,272 $ 34,255 $ 146,365 $ 167,161 $ 1,075,003 CRE - Construction and development Pass $ 99,803 $ 163,126 $ 43,189 $ 3,393 $ 821 $ 700 $ 9,552 $ 320,584 Special mention / watch 1,097 — 464 — — — 467 2,028 Substandard 343 240 — — — — — 583 Doubtful — — — — — — — — Total $ 101,243 $ 163,366 $ 43,653 $ 3,393 $ 821 $ 700 $ 10,019 $ 323,195 CRE - Farmland Pass $ 25,666 $ 44,907 $ 47,068 $ 18,863 $ 6,587 $ 14,845 $ 1,642 $ 159,578 Special mention / watch 1,229 6,898 2,409 5,982 — 965 276 17,759 Substandard 1,830 210 1,542 1,052 926 2,029 29 7,618 Doubtful — — — — — — — — Total $ 28,725 $ 52,015 $ 51,019 $ 25,897 $ 7,513 $ 17,839 $ 1,947 $ 184,955 CRE - Multifamily Pass $ 32,077 $ 96,969 $ 111,032 $ 77,532 $ 8,701 $ 6,508 $ 4,208 $ 337,027 Special mention / watch 5,318 1,237 277 18,984 7,850 4,586 — 38,252 Substandard — — 7,572 327 — — — 7,899 Doubtful — — — — — — — — Total $ 37,395 $ 98,206 $ 118,881 $ 96,843 $ 16,551 $ 11,094 $ 4,208 $ 383,178 CRE - Other Pass $ 199,698 $ 295,066 $ 256,718 $ 250,676 $ 77,509 $ 90,170 $ 51,827 $ 1,221,664 Special mention / watch 364 1,306 3,300 4,823 4,282 2,395 3,856 20,326 Substandard 325 26,555 19,253 19,103 8,242 17,876 638 91,992 Doubtful — — — — — — — — Total $ 200,387 $ 322,927 $ 279,271 $ 274,602 $ 90,033 $ 110,441 $ 56,321 $ 1,333,982 RRE - One- to four- family first liens Pass / Performing $ 62,644 $ 125,777 $ 92,767 $ 54,028 $ 19,674 $ 81,660 $ 13,283 $ 449,833 Special mention / watch 629 716 36 620 1,827 319 — 4,147 Substandard / Nonperforming 1,156 191 738 165 164 3,404 — 5,818 Doubtful — — — — — — — — Total $ 64,429 $ 126,684 $ 93,541 $ 54,813 $ 21,665 $ 85,383 $ 13,283 $ 459,798 RRE - One- to four- family junior liens Performing $ 23,551 $ 29,919 $ 18,733 $ 7,292 $ 2,590 $ 7,867 $ 89,810 $ 179,762 Nonperforming — 192 — 25 23 637 — 877 Total $ 23,551 $ 30,111 $ 18,733 $ 7,317 $ 2,613 $ 8,504 $ 89,810 $ 180,639 Consumer Performing $ 26,028 $ 14,319 $ 10,042 $ 4,421 $ 1,451 $ 7,350 $ 4,145 $ 67,756 Nonperforming — 22 — — 3 2 — 27 Total $ 26,028 $ 14,341 $ 10,042 $ 4,421 $ 1,454 $ 7,352 $ 4,145 $ 67,783 Term Loans by Origination Year Revolving Loans December 31, 2023 2023 2022 2021 2020 2019 Prior Total Total by Credit Quality Indicator Category Pass $ 607,768 $ 962,918 $ 752,137 $ 524,570 $ 139,536 $ 311,683 $ 299,882 $ 3,598,494 Special mention / watch 11,444 11,123 10,365 33,885 14,157 9,059 22,996 113,029 Substandard 5,260 30,310 31,417 21,416 17,839 52,965 7,795 167,002 Doubtful — — — — — — — — Performing 49,579 44,238 28,775 11,713 4,041 15,217 93,955 247,518 Nonperforming — 214 — 25 26 639 — 904 Total $ 674,051 $ 1,048,803 $ 822,694 $ 591,609 $ 175,599 $ 389,563 $ 424,628 $ 4,126,947 Term Loans by Origination Year Revolving Loans December 31, 2023 2023 2022 2021 2020 2019 Prior Total Year-to-date Current Period Gross Write-offs Agricultural $ — $ 8 $ 1 $ 17 $ 2 $ — $ — $ 28 Commercial and industrial 239 343 223 133 464 45 — 1,447 CRE - Construction and development — — — — — — — — CRE - Farmland — — — — — — — — CRE - Multifamily — — — — — — — — CRE - Other — — — — — 2,337 — 2,337 RRE - One-to-four-family first liens — — — — — 36 — 36 RRE - One-to-four-family junior liens — 19 — — — — — 19 Consumer — 621 30 12 12 10 — 685 Total Current Period Gross Write-offs $ 239 $ 991 $ 254 $ 162 $ 478 $ 2,428 $ — $ 4,552 Allowance for Credit Losses The following are the economic factors utilized by the Company for its loan credit loss estimation process at March 31, 2024, and the forecast for each factor at that date: (1) Midwest unemployment – increases over the next four forecasted quarters; (2) year-to-year change in national retail sales - increases over the next four forecasted quarters; (3) year-to-year change in CRE Index - decreases 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. In addition, management utilized 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. The increase in the ACL between March 31, 2024 and December 31, 2023 reflects $3.1 million of day 1 credit loss expense related to acquired DNVB loans, as well as additional reserve taken to support loan growth. Net loan charge-offs were $0.2 million for the three months ended March 31, 2024 as compared to net loan charge-offs of $0.3 million for the three months ended March 31, 2023. 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 $20.6 million at March 31, 2024 and $19.7 million at December 31, 2023 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 Three Months Ended March 31, 2024 and 2023 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total For the Three Months Ended March 31, 2024 Beginning balance $ 613 $ 21,743 $ 23,759 $ 4,762 $ 623 $ 51,500 Charge-offs (4) (299) (35) (19) (290) (647) Recoveries 355 46 8 9 40 458 Credit loss expense (benefit) (1) (316) 392 3,040 262 1,211 4,589 Ending balance $ 648 $ 21,882 $ 26,772 $ 5,014 $ 1,584 $ 55,900 For the Three Months Ended March 31, 2023 Beginning balance $ 923 $ 22,855 $ 20,123 $ 4,678 $ 621 $ 49,200 Charge-offs (1) (320) (18) — (148) (487) Recoveries 26 75 5 4 44 154 Credit loss expense (benefit) (1) (435) (265) 1,723 (137) 47 933 Ending balance $ 513 $ 22,345 $ 21,833 $ 4,545 $ 564 $ 49,800 (1) The difference in the credit loss expense reported herein as compared to the Consolidated Statements of Income is associated with the credit loss expense of $0.1 million related to off-balance sheet credit exposures for the three months ended March 31, 2024, with no credit loss expense related to off-balance sheet credit exposures being recorded for the three months ended March 31, 2023. The composition of the allowance for credit losses by portfolio segment based on evaluation method was as follows: As of March 31, 2024 (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 $ 219 $ 16,911 $ 8,433 $ 1,636 $ — $ 27,199 Collectively evaluated for impairment 112,810 1,088,807 2,429,396 675,773 80,661 4,387,447 Total $ 113,029 $ 1,105,718 $ 2,437,829 $ 677,409 $ 80,661 $ 4,414,646 Allowance for credit losses: Individually evaluated for impairment $ — $ 2,804 $ 47 $ 118 $ — $ 2,969 Collectively evaluated for impairment 648 19,078 26,725 4,896 1,584 52,931 Total $ 648 $ 21,882 $ 26,772 $ 5,014 $ 1,584 $ 55,900 As of December 31, 2023 (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 $ 11 $ 17,231 $ 10,932 $ 983 $ — $ 29,157 Collectively evaluated for impairment 118,403 1,057,772 2,214,378 639,454 67,783 4,097,790 Total $ 118,414 $ 1,075,003 $ 2,225,310 $ 640,437 $ 67,783 $ 4,126,947 Allowance for credit losses: Individually evaluated for impairment $ — $ 2,616 $ 705 $ 16 $ — $ 3,337 Collectively evaluated for impairment 613 19,127 23,054 4,746 623 48,163 Total $ 613 $ 21,743 $ 23,759 $ 4,762 $ 623 $ 51,500 The following tables present 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 March 31, 2024 (in thousands) Primary Type of Collateral Real Estate Equipment Other Total ACL Allocation Agricultural $ 11 $ — $ 208 $ 219 $ — Commercial and industrial 16,911 — — 16,911 2,804 Commercial real estate: Construction and development — — — — — Farmland 2,334 — 1,278 3,612 — Multifamily — — — — — Commercial real estate-other 4,821 — — 4,821 47 Residential real estate: One- to four- family first liens 853 — — 853 — One- to four- family junior liens 783 — — 783 118 Consumer — — — — — Total $ 25,713 $ — $ 1,486 $ 27,199 $ 2,969 As of December 31, 2023 (in thousands) Primary Type of Collateral Real Estate Equipment Other Total ACL Allocation Agricultural $ 11 $ — $ — $ 11 $ — Commercial and industrial 15,991 — 1,240 17,231 2,616 Commercial real estate: Construction and development — — — — — Farmland 5,403 — — 5,403 — Multifamily — — — — — Commercial real estate-other 5,350 — 179 5,529 705 Residential real estate: One- to four- family first liens 481 — — 481 — One- to four- family junior liens — — 502 502 16 Consumer — — — — — Total $ 27,236 $ — $ 1,921 $ 29,157 $ 3,337 Loan Modifications to Borrowers Experiencing Financial Difficulty Occasionally, the Company may modify loans to borrowers who are experiencing financial difficulty. Loan modifications to borrowers experiencing financial difficulty may be in the form of principal forgiveness, term extension, an other-than-insignificant payment delay, interest rate reduction, or combination thereof. The following tables present the amortized cost basis of loans as of March 31, 2024 and March 31, 2023 that were modified during the three months ended March 31, 2024 and March 31, 2023 and experiencing financial difficulty at the time of the modification by class and by type of modification: For the Three Months Ended March 31, 2024 Combination: (dollars in thousands) Principal Forgiveness Payment Delay Term Extension Interest Rate Reduction Term Extension & Interest Rate Reduction Principal Forgiveness & Term Extension Principal Forgiveness, Term Extension, & Interest Rate Reduction Payment Delay & Term Extension Total Class of Financing Receivable Three Months Ended March 31, 2024 Commercial and industrial $ — $ — $ 350 $ — $ — $ — $ — $ — 0.03 % CRE - Other — — 202 — — — — — 0.01 % RRE - One- to four- family first liens — 253 — — — — — — 0.05 % RRE - One- to four- family junior liens — — 136 — — — — — 0.07 % Total $ — $ 253 $ 688 $ — $ — $ — $ — $ — For the Three Months Ended March 31, 2023 Combination: (dollars in thousands) Principal Forgiveness Payment Delay Term Extension Interest Rate Reduction Term Extension & Interest Rate Reduction Principal Forgiveness & Term Extension Principal Forgiveness, Term Extension, & Interest Rate Reduction Payment Delay & Term Extension Total Class of Financing Receivable Three Months Ended March 31, 2023 Agricultural $ — $ 16 $ 1,502 $ — $ — $ — $ — $ — 1.42 % Commercial and industrial — — 50 — 120 307 — — 0.04 % CRE - Other — — — — — — 20 — — % Total $ — $ 16 $ 1,552 $ — $ 120 $ 307 $ 20 $ — The Company has no additional commitments to lend amounts to the borrowers included in the previous tables as of March 31, 2024 and March 31, 2023. For the three months ended March 31, 2024, the Company had 9 modified loans totaling $1.4 million to borrowers experiencing financial difficulty that redefaulted within 12 months subsequent to the modification. For the three months ended March 31, 2023, the Company had no modified loans totaling to borrowers experiencing financial difficulty that redefaulted within 12 months subsequent to the modification. The following tables present the performance, as of March 31, 2024 and March 31, 2023, of loans that were modified while the borrower was experiencing financial difficulty at the time of modification in the last 12 months: As of March 31, 2024 (in thousands) Current 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total Commercial and industrial $ 4,028 $ 76 $ — $ 995 $ 5,099 CRE - Construction and development 559 — — — 559 CRE - Farmland 29 — — 352 381 CRE - Other 6,066 — — — 6,066 RRE - One- to four- family first liens 253 — — — 253 RRE - One- to four- family junior liens 149 — — — 149 Total $ 11,084 $ 76 $ — $ 1,347 $ 12,507 As of March 31, 2023 (in thousands) Current 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total Agricultural $ 1,518 $ — $ — $ — $ 1,518 Commercial and industrial 477 — — — 477 CRE - Other — — — 20 20 Total $ 1,995 $ — $ — $ 20 $ 2,015 The following tables present the financial effect of the loan modifications presented above to borrowers experiencing financial difficulty for the three months ended March 31, 2024 and March 31, 2023: (dollars in thousands) Principal Forgiveness Weighted Average Interest Rate Reduction Weighted Average Term Extension (Months) Three Months Ended March 31, 2024 Commercial and industrial $ — — % 4.4 CRE - Other — — % 5.4 RRE - One- to four- family junior liens — — % 122.0 Total $ — — % 27.9 (dollars in thousands) Principal Forgiveness Weighted Average Interest Rate Reduction Weighted Average Term Extension (Months) Three Months Ended March 31, 2023 Agricultural $ — — % 2.37 Commercial and industrial 63 1.25 11.89 CRE - Other 18 7.00 2.47 Total $ 81 2.07 % 4.64

Derivatives, Hedging Activities

Derivatives, Hedging Activities and Balance Sheet Offsetting	3 Months Ended
	Mar. 31, 2024
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. The fair values of the Company's derivative instrument assets and liabilities are summarized as follows: As of March 31, 2024 As of December 31, 2023 Notional Amount Fair Value Notional Amount Fair Value (in thousands) Assets Liabilities Assets Liabilities Designated as hedging instruments: Fair value hedges: Interest rate swaps - loans $ 50,425 $ 2,529 $ 601 $ 41,101 $ 2,071 $ 902 Interest rate swaps - securities 150,000 144 90 150,000 — 821 Cash flow hedges Interest rate swaps 200,000 2,660 — 200,000 940 264 Total $ 400,425 $ 5,333 $ 691 $ 391,101 $ 3,011 $ 1,987 Not designated as hedging instruments: Interest rate swaps $ 522,777 $ 22,429 $ 22,438 $ 432,648 $ 22,028 $ 22,038 RPAs - protection sold 31,175 5 — 18,778 4 — RPAs - protection purchased 31,089 — 4 31,145 — 9 Interest rate lock commitments 3,623 77 — 1,461 50 — Interest rate forward loan sales contracts 3,730 — 8 2,075 — 23 Total $ 592,394 $ 22,511 $ 22,450 $ 486,107 $ 22,082 $ 22,070 Derivatives Designated as Hedging Instruments The Company uses derivative instruments to hedge its exposure to economic risks. 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, including AFS debt securities and loans. The gain or loss on the loan fair value hedge derivative, as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in interest income. The change in the fair value of the available for sale securities attributable to changes in the hedged risk is recorded in accumulated other comprehensive income and subsequently reclassified into interest income, as applicable, in the same period(s) to offset the changes in the fair value of the swap, which is also 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. The Company has previously entered into pay-fixed receive-variable interest rate swaps 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, including brokered deposits. The gain or loss on the derivatives is recorded in accumulated other comprehensive income and subsequently reclassified into interest expense, as applicable, in the same period(s) during which the hedged transaction affects earnings. During the next 12 months, the Company estimates that an additional $2.2 million of income will be reclassified into interest expense. The table below presents the effect of cash flow hedge accounting on AOCI for the three months ended March 31, 2024 and 2023: 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 Three Months Ended March 31, Three Months Ended March 31, (in thousands) 2024 2023 2024 2023 Interest rate swaps $ 2,772 $ 138 Interest Expense $ 788 $ — 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 periods indicated: Location and Amount of Gain or Loss Recognized in Income on Hedging Relationships For the Three Months Ended March 31, 2024 2023 (in thousands) Interest Income Other Income Interest Income Other Income Income and expense included in the consolidated statements of income related to the effects of fair value or cash flow hedges are recorded $ 408 $ — $ 159 $ — The effects of fair value and cash flow hedging: Gain (loss) on fair value hedging relationships in subtopic 815-20: Interest contracts - loans: Hedged items (764) — 562 — Derivative designated as hedging instruments 1,023 — (402) — Interest contracts - securities: Hedged items (882) — — — Derivative designated as hedging instruments 1,059 — — — As of March 31, 2024, the following amounts were recorded on the balance sheet related to cumulative basis adjustment for fair value hedges: Line Item in the Balance Sheet in Which the Hedged Item is Included Carrying Amount of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset (in thousands) Loans $ 48,539 $ (1,926) Securities $ 149,937 $ (63) 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 or participation agreement. 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. 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 periods indicated: Location in the Consolidated Statements of Income For the Three Months Ended March 31, (in thousands) 2024 2023 Interest rate swaps Other income $ — $ — RPAs Other income 5 69 Interest rate lock commitments Loan revenue 27 94 Interest rate forward loan sales contracts Loan revenue 14 (30) Total $ 46 $ 133 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 March 31, 2024 and December 31, 2023, 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 Not Offset in the Balance Sheet (in thousands) Gross Amounts Recognized Gross Amounts Offset in the Balance Sheet Net Amounts presented in the Balance Sheet Financial Instruments Cash Collateral Received / Paid Net Assets /Liabilities As of March 31, 2024 Asset Derivatives $ 27,844 $ — $ 27,844 $ — $ 17,998 $ 9,846 Liability Derivatives 23,141 — 23,141 — 2,730 20,411 As of December 31, 2023 Asset Derivatives $ 25,093 $ — $ 25,093 $ — $ 15,549 $ 9,544 Liability Derivatives 24,057 — 24,057 — 2,420 21,637 Credit-risk-related Contingent Features

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2024
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 period indicated: (in thousands) As of March 31, 2024 As of December 31, 2023 Goodwill, beginning of period $ 62,477 $ 62,477 Goodwill from the acquisition of DNVB 8,641 — Total goodwill, end of period $ 71,118 $ 62,477 As indicated in Note 2. Business Combinations , the Company acquired a core deposit intangible in connection with its acquisition of DNVB on January 31, 2024 with an estimated fair value of $7.1 million, which will be amortized over its estimated useful life of 10 years. The following table presents the gross carrying amount, accumulated amortization, and net carrying amount of other intangible assets as of the dates indicated: As of March 31, 2024 As of December 31, 2023 (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Core deposit intangible $ 65,345 $ (43,044) $ 22,301 $ 58,245 $ (41,499) $ 16,746 Customer relationship intangible 5,265 (5,092) 173 5,265 (5,008) 257 Other 2,700 (2,683) 17 2,700 (2,674) 26 $ 73,310 $ (50,819) $ 22,491 $ 66,210 $ (49,181) $ 17,029 Indefinite-lived trade name intangible 7,040 7,040 Total other intangible assets, net $ 29,531 $ 24,069 The following table provides the estimated future amortization expense for the remaining nine months of the year ending December 31, 2024 and the succeeding annual periods: (in thousands) Core Deposit Intangible Customer Relationship Intangible Other Total 2024 $ 4,344 $ 155 $ 15 $ 4,514 2025 4,924 18 2 4,944 2026 3,840 — — 3,840 2027 2,757 — — 2,757 2028 2,110 — — 2,110 Thereafter 4,326 — — 4,326 Total $ 22,301 $ 173 $ 17 $ 22,491

Other Assets

Other Assets	3 Months Ended
	Mar. 31, 2024
Other Assets [Abstract]
Other Assets	Other Assets The components of the Company's other assets as of March 31, 2024 and December 31, 2023 were as follows: (in thousands) March 31, 2024 December 31, 2023 Bank-owned life insurance $ 98,700 $ 98,039 Interest receivable 30,728 29,768 FHLB stock 5,220 5,806 Mortgage servicing rights 12,965 13,333 Operating lease right-of-use assets, net 2,153 2,337 Federal and state income taxes, current 579 1,556 Federal and state income taxes, deferred 29,582 31,218 Derivative assets 27,844 25,093 Other receivables/assets 18,706 15,630 $ 226,477 $ 222,780

Deposits

Deposits	3 Months Ended
	Mar. 31, 2024
Deposits [Abstract]
Deposits	Deposits The following table presents the composition of our deposits as of the dates indicated: (in thousands) March 31, 2024 December 31, 2023 Noninterest bearing deposits $ 920,764 $ 897,053 Interest checking deposits 1,349,823 1,320,435 Money market deposits 1,122,717 1,105,493 Savings deposits 728,276 650,655 Time deposits of $250 and under 992,851 973,253 Time deposits over $250 470,805 448,784 Total deposits $ 5,585,236 $ 5,395,673 The Company had $14.0 million and $15.2 million in reciprocal time deposits as of March 31, 2024 and December 31, 2023, respectively. Included in money market deposits at March 31, 2024 and December 31, 2023 were $132.7 million and $128.0 million, respectively, of interest-bearing reciprocal deposits. Included in noninterest bearing deposits at March 31, 2024 were $64.2 million of noninterest-bearing reciprocal deposits, with $58.0 million noninterest-bearing reciprocal deposits at December 31, 2023. These reciprocal deposits are part of the IntraFi Network Deposits program, which is used by financial institutions to spread deposits that exceed the FDIC insurance coverage limits out to numerous institutions in order to provide insurance coverage for all participating deposits. In addition, included within the time deposits of “$250 thousand and under ” was $205.0 million of brokered deposits as of March 31, 2024 and $221.0 million as of December 31, 2023. As of March 31, 2024 and December 31, 2023, the Company had public entity deposits, which were collateralized by investment securities balances of $285.1 million and $183.4 million, respectively.

Short-Term Borrowings

Short-Term Borrowings	3 Months Ended
	Mar. 31, 2024
Short-Term Debt [Abstract]
Short-Term Borrowings	Short-Term Borrowings The following table summarizes our short-term borrowings as of the dates indicated: March 31, 2024 December 31, 2023 (in thousands) Weighted Average Rate Balance Weighted Average Rate Balance Securities sold under agreements to repurchase 0.68 % $ 4,988 0.72 % $ 5,064 Federal Home Loan Bank advances — — 5.64 10,200 Federal Reserve Bank borrowings 4.77 405,000 4.82 285,000 Unsecured line of credit 6.88 13,000 — — Total 4.79 % $ 422,988 4.78 % $ 300,264 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 March 31, 2024 or December 31, 2023. Federal Reserve Bank Borrowing - At March 31, 2024 and December 31, 2023, the Company had no Federal Reserve Discount Window borrowings, while the borrowing capacity was $421.4 million as of March 31, 2024 and $428.8 million as of December 31, 2023. At March 31, 2024, the Company had $405.0 million of Bank Term Funding Program borrowings. The FRB announced that effective March 11, 2024, no additional loans would be made under the Bank Term Funding Program. As of March 31, 2024 and December 31, 2023, pledged to the Federal Reserve Bank of Chicago were investment securities consisting primarily of corporate debt, state and political subdivisions, mortgage backed, and collateralized mortgage obligations, with a market value of $790.3 million and $797.6 million, respectively. Unsecured Line of Credit

Long-Term Debt

Long-Term Debt	3 Months Ended
	Mar. 31, 2024
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: March 31, 2024 December 31, 2023 March 31, 2024 December 31, 2023 (in thousands) Face Value Book Value Interest Rate (1) Rate Maturity Date Callable Date ATBancorp Statutory Trust I $ 7,732 $ 6,980 $ 6,970 1.68% Margin 7.27 % 7.33 % 06/15/2036 06/15/2011 ATBancorp Statutory Trust II 12,372 11,051 11,034 1.65% Margin 7.24 % 7.30 % 09/15/2037 06/15/2012 Barron Investment Capital Trust I 2,062 1,868 1,861 2.15% Margin 7.73 % 7.77 % 09/23/2036 09/23/2011 Central Bancshares Capital Trust II 7,217 6,974 6,964 3.50% Margin 9.09 % 9.15 % 03/15/2038 03/15/2013 MidWestOne Statutory Trust II 15,464 15,464 15,464 1.59% Margin 7.18 % 7.24 % 12/15/2037 12/15/2012 Total $ 44,847 $ 42,337 $ 42,293 (1) Interest rate is equal to the Three-month CME Term SOFR + 0.26% Spread + Applicable Margin 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 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 March 31, 2024, 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. At March 31, 2024 and December 31, 2023, the Company had outstanding subordinated debentures of $64.2 million and $64.1 million, respectively. Other Long-Term Debt Other long-term borrowings were as follows as of March 31, 2024 and December 31, 2023: March 31, 2024 December 31, 2023 (in thousands) Weighted Average Rate Balance Weighted Average Rate Balance Finance lease payable 8.89 % $ 554 8.89 % $ 604 FHLB borrowings 3.11 6,255 3.11 6,262 Note payable to unaffiliated bank 6.88 8,750 6.89 10,000 Total 5.44 % $ 15,559 5.56 % $ 16,866 On June 7, 2022, pursuant to a credit agreement with a correspondent bank, the Company entered into a $35.0 million term note payable maturing on June 30, 2027. Principal and interest are payable quarterly, and began on September 30, 2022. Interest accrues at the monthly reset term SOFR plus 1.55%. The credit agreement includes customary covenants requiring the Company to, among other things, maintain minimum levels of both regulatory capital and certain financial ratios; the Company certifies compliance with the covenants on a quarterly basis. On February 12, 2024, the credit agreement, including certain of its covenants, was amended. As a member of the FHLBDM, the Bank may borrow funds from the FHLB, provided the Bank is able to pledge an adequate amount of qualified assets to secure the borrowings. In addition, the FHLB has established a credit capacity limit to the Bank that is equal to 45% of the Bank’s total assets. This credit capacity limit includes short-term and long-term borrowings, federal funds, letters of credit and other sources of credit exposure to the FHLB. 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 unaudited consolidated financial statements. As of March 31, 2024, FHLB borrowings were as follows: (in thousands) Weighted Average Rate Amount Due in 2024 3.11 % $ 6,250 Valuation adjustment from acquisition accounting 5 Total $ 6,255

Earnings per Share

Earnings per Share	3 Months Ended
	Mar. 31, 2024
Earnings Per Share [Abstract]
Earnings per Share	Earnings per Share The following table presents the computation of basic and diluted earnings per common share for the periods indicated: Three Months Ended March 31, (dollars in thousands, except per share amounts) 2024 2023 Basic Earnings Per Share: Net income $ 3,269 $ 1,397 Weighted average shares outstanding 15,722,697 15,649,651 Basic earnings per common share $ 0.21 $ 0.09 Diluted Earnings Per Share: Net income $ 3,269 $ 1,397 Weighted average shares outstanding, including all dilutive potential shares 15,773,521 15,691,168 Diluted earnings per common share $ 0.21 $ 0.09

Regulatory Capital Requirements

Regulatory Capital Requirements and Restrictions on Subsidiary Cash	3 Months Ended
	Mar. 31, 2024
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. As of March 31, 2024 and December 31, 2023, the Bank was not required to maintain reserve balances in cash on hand or on deposit with Federal Reserve Banks, and therefore no amounts were held in reserve for each of these periods. A comparison of the Company's and the Bank's capital with the corresponding minimum regulatory requirements in effect at March 31, 2024 and December 31, 2023, 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 Amount Ratio At March 31, 2024 Consolidated: Total capital/risk weighted assets $661,448 11.97% $580,192 10.50% N/A N/A Tier 1 capital/risk weighted assets 538,756 9.75 469,679 8.50 N/A N/A Common equity tier 1 capital/risk weighted assets 496,419 8.98 386,795 7.00 N/A N/A Tier 1 leverage capital/average assets 538,756 8.16 264,001 4.00 N/A N/A MidWest One Bank: Total capital/risk weighted assets $675,287 12.25% $578,805 10.50% $551,243 10.00% Tier 1 capital/risk weighted assets 617,596 11.20 468,557 8.50 440,995 8.00 Common equity tier 1 capital/risk weighted assets 617,596 11.20 385,870 7.00 358,308 6.50 Tier 1 leverage capital/average assets 617,596 9.36 263,801 4.00 329,751 5.00 At December 31, 2023 Consolidated: Total capital/risk weighted assets $668,748 12.53% $560,596 10.50% N/A N/A Tier 1 capital/risk weighted assets 554,177 10.38 453,816 8.50 N/A N/A Common equity tier 1 capital/risk weighted assets 511,884 9.59 373,731 7.00 N/A N/A Tier 1 leverage capital/average assets 554,177 8.58 258,487 4.00 N/A N/A MidWest One Bank: Total capital/risk weighted assets $656,027 12.49% $551,658 10.50% $525,388 10.00% Tier 1 capital/risk weighted assets 606,456 11.54 446,580 8.50 420,310 8.00 Common equity tier 1 capital/risk weighted assets 606,456 11.54 367,772 7.00 341,502 6.50 Tier 1 leverage capital/average assets 606,456 9.39 258,339 4.00 322,924 5.00 (1)

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2024
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: March 31, 2024 December 31, 2023 (in thousands) Commitments to extend credit $ 1,230,612 $ 1,203,001 Commitments to sell loans 2,329 1,045 Standby letters of credit 8,154 7,795 Total $ 1,241,095 $ 1,211,841 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 March 31, 2024 and December 31, 2023, the liability for off-balance-sheet credit losses totaled $4.7 million and $4.6 million, respectively. For the three-months ended March 31, 2024, $0.1 million credit loss expense was recorded, with no credit loss expense recorded for the three-months ended March 31, 2023. 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 66% of the loans are real estate loans, excluding farmland, and approximately 7% 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

Fair Value of Financial Instrum

Fair Value of Financial Instruments and Fair Value Measurements	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments and Fair Value Measurements	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. For additional information regarding the valuation methodologies used to measure the Company's assets recorded at fair value, and for estimating fair value for financial instruments not recorded at fair value, see Note 1. Nature of Business and Significant Accounting Policies and Note 20. Estimated Fair Value of Financial Instruments and Fair Value Measurements to the consolidated financial statements in the Company's 2023 Annual Report on Form 10-K, filed with the SEC on March 8, 2024. 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 following tables summarize assets and liabilities measured at fair value on a recurring basis as of March 31, 2024 and December 31, 2023, by level within the fair value hierarchy: Fair Value Measurement at March 31, 2024 Using (in thousands) Total Level 1 Level 2 Level 3 Assets: Available for sale debt securities: U.S. Treasury securities $ 247 $ — $ 247 $ — State and political subdivisions 123,378 — 123,378 — Mortgage-backed securities 5,199 — 5,199 — Collateralized loan obligations 61,866 — 61,866 — Collateralized mortgage obligations 178,622 — 178,622 — Corporate debt securities 427,918 — 427,918 — Derivative assets 27,844 — 27,767 77 Mortgage servicing rights 12,965 — 12,965 — Liabilities: Derivative liabilities $ 23,141 $ — $ 23,141 $ — Fair Value Measurement at December 31, 2023 Using (in thousands) Total Level 1 Level 2 Level 3 Assets: Debt securities available for sale: State and political subdivisions $ 130,139 $ — $ 130,139 $ — Mortgage-backed securities 5,311 — 5,311 — Collateralized loan obligations 50,437 — 50,437 — Collateralized mortgage obligations 169,196 — 169,196 — Corporate debt securities 440,051 — 440,051 — Derivative assets 25,093 — 25,043 50 Mortgage servicing rights 13,333 — 13,333 — Liabilities: Derivative liabilities $ 24,057 $ — $ 24,057 $ — There were no transfers of assets between Level 3 and other levels of the fair value hierarchy during the three months ended March 31, 2024 or the year ended December 31, 2023. Changes in the fair value of available for sale debt securities, including the changes attributable to the hedged risk, 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 at the dates indicated: Fair Value at (dollars in thousands) March 31, 2024 December 31, 2023 Valuation Techniques(s) Unobservable Input Range of Inputs Weighted Average Interest rate lock commitments $ 77 $ 50 Quoted or published market prices of similar instruments, adjusted for factors such as pull-through rate assumptions Pull-through rate 71% - 100% 86% Nonrecurring Basis The following table presents assets measured at fair value on a nonrecurring basis at the dates indicated: Fair Value Measurement at March 31, 2024 Using (in thousands) Total Level 1 Level 2 Level 3 Collateral dependent individually analyzed loans $ 4,481 $ — $ — $ 4,481 Foreclosed assets, net 3,897 — — 3,897 Fair Value Measurement at December 31, 2023 Using (in thousands) Total Level 1 Level 2 Level 3 Collateral dependent individually analyzed loans $ 6,524 $ — $ — $ 6,524 Foreclosed assets, net 3,929 — — 3,929 The following table 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 at the dates indicated: Fair Value at (dollars in thousands) March 31, 2024 December 31, 2023 Valuation Techniques(s) Unobservable Input Range of Inputs Weighted Average Collateral dependent individually analyzed loans $ 4,481 $ 6,524 Fair value of collateral Valuation adjustments —% - 33% 11% Foreclosed assets, net $ 3,897 $ 3,929 Fair value of collateral Valuation adjustments 7% - 11% 11% Changes in assumptions or estimation methodologies may have a material effect on these estimated fair values. Carrying Amount and Estimated Fair Value of Financial Instruments The carrying amount and estimated fair value of financial instruments at March 31, 2024 and December 31, 2023 were as follows: March 31, 2024 (in thousands) Carrying Estimated Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 97,762 $ 97,762 $ 97,762 $ — $ — Debt securities available for sale 797,230 797,230 — 797,230 — Debt securities held to maturity 1,064,939 875,644 — 875,644 — Loans held for sale 2,329 2,357 — 2,357 — Loans held for investment, net 4,358,746 4,220,905 — — 4,220,905 Interest receivable 30,728 30,728 — 30,728 — FHLB stock 5,220 5,220 — 5,220 — Derivative assets 27,844 27,844 — 27,767 77 Financial liabilities: Noninterest bearing deposits 920,764 920,764 920,764 — — Interest bearing deposits 4,664,472 4,635,692 3,200,816 1,434,876 — Short-term borrowings 422,988 422,988 422,988 — — Finance leases payable 554 554 — 554 — FHLB borrowings 6,255 5,929 — 5,929 — Junior subordinated notes issued to capital trusts 42,337 37,990 — 37,990 — Subordinated debentures 64,170 60,876 — 60,876 — Other long-term debt 8,750 8,750 — 8,750 — Derivative liabilities 23,141 23,141 — 23,141 — December 31, 2023 (in thousands) Carrying Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 81,727 $ 81,727 $ 81,727 $ — $ — Debt securities available for sale 795,134 795,134 — 795,134 — Debt securities held to maturity 1,075,190 895,263 — 895,263 — Loans held for sale 1,045 1,083 — 1,083 — Loans held for investment, net 4,075,447 3,953,368 — — 3,953,368 Interest receivable 29,768 29,768 — 29,768 — FHLB stock 5,806 5,806 — 5,806 — Derivative assets 25,093 25,093 — 25,043 50 Financial liabilities: Noninterest bearing deposits 897,053 897,053 897,053 — — Interest bearing deposits 4,498,620 4,489,322 3,076,582 1,412,740 — Short-term borrowings 300,264 300,264 300,264 — — Finance leases payable 604 604 — 604 — FHLB borrowings 6,262 6,199 — 6,199 — Junior subordinated notes issued to capital trusts 42,293 37,938 — 37,938 — Subordinated debentures 64,137 61,940 — 61,940 — Other long-term debt 10,000 10,000 — 10,000 — Derivative liabilities 24,057 24,057 — 24,057 —

Leases

Leases	3 Months Ended
	Mar. 31, 2024
Leases [Abstract]
Leases	Leases The Company's lease commitments consist primarily of real estate property for banking offices and office space with terms extending through 2045. 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. (in thousands) Classification March 31, 2024 December 31, 2023 Operating lease right-of-use assets Other assets $ 2,153 $ 2,337 Finance lease right-of-use asset Premises and equipment, net 231 255 Total right-of-use assets $ 2,384 $ 2,592 Operating lease liability Other liabilities $ 2,842 $ 3,078 Finance lease liability Long-term debt 554 604 Total lease liabilities $ 3,396 $ 3,682 Weighted-average remaining lease term: Operating leases 10.61 years 10.20 years Finance lease 2.42 years 2.67 years Weighted-average discount rate: Operating leases 4.54 % 4.43 % 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. Three Months Ended March 31, (in thousands) 2024 2023 Lease Costs Operating lease cost $ 388 $ 292 Variable lease cost 7 7 Interest on lease liabilities (1) 13 17 Amortization of right-of-use assets 24 24 Net lease cost $ 432 $ 340 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 822 $ 605 Operating cash flows from finance lease 13 17 Finance cash flows from finance lease 50 43 Supplemental non-cash information on lease liabilities: Right-of-use assets obtained in exchange for new operating lease liabilities 156 292 (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 for the remaining nine-months ending December 31, 2024 and the succeeding annual periods were as follows: (in thousands) Finance Leases Operating Leases December 31, 2024 $ 188 $ 734 December 31, 2025 254 601 December 31, 2026 172 447 December 31, 2027 — 302 December 31, 2028 — 138 Thereafter — 1,600 Total undiscounted lease payment $ 614 $ 3,822 Amounts representing interest (60) (980) Lease liability $ 554 $ 2,842
Leases	Leases The Company's lease commitments consist primarily of real estate property for banking offices and office space with terms extending through 2045. 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. (in thousands) Classification March 31, 2024 December 31, 2023 Operating lease right-of-use assets Other assets $ 2,153 $ 2,337 Finance lease right-of-use asset Premises and equipment, net 231 255 Total right-of-use assets $ 2,384 $ 2,592 Operating lease liability Other liabilities $ 2,842 $ 3,078 Finance lease liability Long-term debt 554 604 Total lease liabilities $ 3,396 $ 3,682 Weighted-average remaining lease term: Operating leases 10.61 years 10.20 years Finance lease 2.42 years 2.67 years Weighted-average discount rate: Operating leases 4.54 % 4.43 % 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. Three Months Ended March 31, (in thousands) 2024 2023 Lease Costs Operating lease cost $ 388 $ 292 Variable lease cost 7 7 Interest on lease liabilities (1) 13 17 Amortization of right-of-use assets 24 24 Net lease cost $ 432 $ 340 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 822 $ 605 Operating cash flows from finance lease 13 17 Finance cash flows from finance lease 50 43 Supplemental non-cash information on lease liabilities: Right-of-use assets obtained in exchange for new operating lease liabilities 156 292 (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 for the remaining nine-months ending December 31, 2024 and the succeeding annual periods were as follows: (in thousands) Finance Leases Operating Leases December 31, 2024 $ 188 $ 734 December 31, 2025 254 601 December 31, 2026 172 447 December 31, 2027 — 302 December 31, 2028 — 138 Thereafter — 1,600 Total undiscounted lease payment $ 614 $ 3,822 Amounts representing interest (60) (980) Lease liability $ 554 $ 2,842

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2024
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) The following table summarizes the changes in accumulated other comprehensive income (loss) by component, net of tax: (in thousands) Unrealized Gain (Loss) from AFS Debt Securities Reclassification of AFS Debt Securities to HTM Unrealized Gain from Cash Flow Hedging Instruments Total Balance, December 31, 2022 $ (91,852) $ 2,805 $ — $ (89,047) Other comprehensive (loss) income before reclassifications (213) 434 103 324 Amounts reclassified from AOCI 9,838 — — 9,838 Net current-period other comprehensive income 9,625 434 103 10,162 Balance, March 31, 2023 $ (82,227) $ 3,239 $ 103 $ (78,885) Balance, December 31, 2023 $ (69,915) $ 4,511 $ 505 $ (64,899) Other comprehensive income before reclassifications 1,607 374 2,071 4,052 Amounts reclassified from AOCI 632 — (589) 43 Net current-period other comprehensive income 2,239 374 1,482 4,095 Balance, March 31, 2024 $ (67,676) $ 4,885 $ 1,987 $ (60,804) The following table presents reclassifications out of AOCI: Three-Months Ended March 31, (in thousands) 2024 2023 Investment securities (gains) losses, net $ (36) $ 13,170 Interest income 882 — Interest expense (788) — Income tax expense (15) (3,332) Net of tax $ 43 $ 9,838

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2024
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events The Company has evaluated events that have occurred subsequent to March 31, 2024 and has concluded there are no other subsequent events that would require recognition in the accompanying consolidated financial statements.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net income	$ 3,269	$ 1,397

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Nature of Business and Signif_2

Nature of Business and Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying interim condensed consolidated financial statements are prepared in accordance with GAAP for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, certain disclosures accompanying annual consolidated financial statements are omitted. In the opinion of management, all significant intercompany accounts and transactions have been eliminated and adjustments, consisting solely of normal recurring accruals and considered necessary for the fair presentation of financial statements for the interim periods, have been included. The current period's results of operations are not necessarily indicative of the results that ultimately may be achieved for the year. The interim condensed consolidated financial statements and notes thereto should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Form 10-K for the year ended December 31, 2023, filed with the SEC on March 8, 2024.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect: (1) the reported amounts 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. These estimates are based on information available to management at the time the estimates are made. Actual results could differ from those estimates. The results for the three months ended March 31, 2024 may not be indicative of results for the year ending December 31, 2024, or for any other period.
Segment Reporting	Segment Reporting The 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, 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.
Effect of New Financial Accounting Standards	Effect of New Financial Accounting Standards Accounting Guidance Pending Adoption at March 31, 2024 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. In addition, ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848 , deferred the sunset date of Topic 848 from December 31, 2022 to December 31, 2024, after which time entities will no longer be permitted to apply the relief in Topic 848. The adoption of ASU 2020-04 is not expected to have a material impact on the Company’s consolidated financial statements. On November 27, 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280) - Improvements to Reportable Segment Disclosures. Enhanced disclosures about significant segment expenses are included within this ASU. The amendments are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with an option to early adopt. The amendments should be applied retrospectively to all prior periods presented in the financial statements, with the segment expense categories and amounts disclosed in prior periods being based on the significant segment expense categories identified and disclosed in the period of adoption. The Company is currently evaluating the impact of ASU 2023-07. On December 14, 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740) - Improvements to Income Tax Disclosures . Additional transparency about income tax information through improvements to income tax disclosures, primarily related to the rate reconciliation and income taxes paid information, will be required. The amendments are effective for annual periods beginning after December 15, 2024, with an option to early adopt. The amendments should be applied on a prospective basis, with retrospective application being permitted. The Company is currently evaluating the impact of ASU 2023-09. Accounting Guidance Adopted in 2024 On March 29, 2023, the FASB issued ASU 2023-02, Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method . Under this ASU, if certain conditions are met, a reporting entity may elect to account for its tax equity investments by using the proportional amortization method regardless of the program from which it receives income tax credits. The amendments are effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years, with an option to early adopt. The amendments must be applied on either a modified retrospective or a retrospective basis, with certain exceptions for low-income-housing tax credit structures that are not accounted for using the proportional amortization method. The adoption of ASU 2023-02 was applied on a modified retrospective basis and did not have a material impact on the Company's consolidated financial statements.
Derivatives Designated as Hedging Instruments	Derivatives Designated as Hedging Instruments The Company uses derivative instruments to hedge its exposure to economic risks. 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, including AFS debt securities and loans. The gain or loss on the loan fair value hedge derivative, as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in interest income. The change in the fair value of the available for sale securities attributable to changes in the hedged risk is recorded in accumulated other comprehensive income and subsequently reclassified into interest income, as applicable, in the same period(s) to offset the changes in the fair value of the swap, which is also 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. The Company has previously entered into pay-fixed receive-variable interest rate swaps 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, including brokered deposits. The gain or loss on the derivatives is recorded in accumulated other comprehensive income and subsequently reclassified into interest expense, as applicable, in the same period(s) during which the hedged transaction affects earnings. During the next 12 months, the Company estimates that an additional $2.2 million of income will be reclassified into interest expense. The table below presents the effect of cash flow hedge accounting on AOCI for the three months ended March 31, 2024 and 2023: 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 Three Months Ended March 31, Three Months Ended March 31, (in thousands) 2024 2023 2024 2023 Interest rate swaps $ 2,772 $ 138 Interest Expense $ 788 $ —
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. For additional information regarding the valuation methodologies used to measure the Company's assets recorded at fair value, and for estimating fair value for financial instruments not recorded at fair value, see Note 1. Nature of Business and Significant Accounting Policies and Note 20. Estimated Fair Value of Financial Instruments and Fair Value Measurements to the consolidated financial statements in the Company's 2023 Annual Report on Form 10-K, filed with the SEC on March 8, 2024. 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.

Business Combinations (Tables)

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2024
Business Combination and Asset Acquisition [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The table below summarizes the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed: (in thousands) January 31, 2024 Merger consideration Cash consideration $ 32,600 Identifiable net assets acquired, at fair value Assets acquired Cash and due from banks $ 462 Interest earning deposits in banks 3,517 Debt securities 52,493 Loans held for investment 207,095 Premises and equipment 13,470 Core deposit intangible 7,100 Other assets 4,987 Total assets acquired 289,124 Liabilities assumed Deposits $ (224,248) Short-term borrowings (37,500) Other liabilities (3,417) Total liabilities assumed (265,165) Identifiable net assets acquired, at fair value 23,959 Goodwill $ 8,641
Schedule of Business Acquisition, Pro Forma Information	For illustrative purposes only, the following table presents certain unaudited pro forma information for the three months ended March 31, 2024 and March 31, 2023. This unaudited, estimated pro forma information was calculated as if DNVB had been acquired as of the beginning of the year prior to the date of acquisition. This unaudited pro forma information combines the historical results of DNVB and the Company and includes adjustments for the estimated impact of certain fair value purchase accounting, interest expense, acquisition-related expenses, and income tax expense for the respective periods. The pro forma information is not indicative of what would have occurred had the acquisition occurred as of the beginning of the year prior to the acquisition. Additionally, MidWest One expects to achieve further operating cost savings and other business synergies, including revenue growth as a result of the acquisition, which are not reflected in the pro forma amounts that follow. As a result, actual amounts would have differed from the unaudited pro forma information presented. Unaudited Three Months Ended March 31, (in thousands, except per share amounts) 2024 2023 Total revenues $ 45,298 $ 38,963 Net income (loss) $ 6,466 $ (1,662) EPS - basic $ 0.41 $ (0.11) EPS - diluted $ 0.41 $ (0.11)
Schedule of Business Acquisition Information	The following table summarizes the DNVB acquisition-related expenses incurred during the three months ended March 31, 2024 and IOFB acquisition-related expenses incurred during the three months ended March 31, 2023, which are included in the respective income statement line items, for the periods indicated: Three Months Ended March 31, (in thousands) 2024 2023 Noninterest Expense Compensation and employee benefits $ 241 $ 70 Occupancy expense of premises, net 152 — Equipment 149 — Legal and professional 573 — Data processing 61 65 Marketing 32 — Communications 1 — Other 105 1 Total acquisition-related expenses $ 1,314 $ 136

Debt Securities (Tables)

Debt Securities (Tables)	3 Months Ended
	Mar. 31, 2024
Debt Securities [Abstract]
Schedule of Debt Securities, Available-for-sale	The following tables summarize the amortized cost, gross unrealized gains and losses and the resulting fair value of debt securities as of the dates indicated: As of March 31, 2024 (in thousands) Amortized Cost (1) Gross Gross Allowance for Credit Loss related to Debt Securities Fair Value Available for Sale U.S. Treasury securities $ 247 $ — $ — $ — $ 247 State and political subdivisions 132,150 1 8,773 — 123,378 Mortgage-backed securities 5,347 3 151 — 5,199 Collateralized loan obligations 61,914 200 248 — 61,866 Collateralized mortgage obligations 201,242 — 22,620 — 178,622 Corporate debt securities 472,217 110 44,409 — 427,918 Total available for sale debt securities $ 873,117 $ 314 $ 76,201 $ — $ 797,230 Held to Maturity State and political subdivisions $ 531,961 $ — $ 71,245 $ — $ 460,716 Mortgage-backed securities 73,668 — 12,685 — 60,983 Collateralized mortgage obligations 459,310 — 105,365 — 353,945 Total held to maturity debt securities $ 1,064,939 $ — $ 189,295 $ — $ 875,644 (1) Amortized cost for the held to maturity securities includes $231 thousand of unamortized gain in state and political subdivisions, $74 thousand of unamortized gains in mortgage-backed securities and $9.3 million of unamortized losses in collateralized mortgage obligations related to the re-classification of securities from available for sale to held to maturity on January 1, 2022. As of December 31, 2023 (in thousands) Amortized Gross Gross Allowance for Credit Loss related to Debt Securities Fair Value Available for Sale State and political subdivisions $ 139,482 $ 2 $ 9,345 $ — $ 130,139 Mortgage-backed securities 5,448 5 142 — 5,311 Collateralized loan obligations 50,541 135 239 — 50,437 Collateralized mortgage obligations 190,304 — 21,108 — 169,196 Corporate debt securities 487,361 57 47,367 — 440,051 Total available for sale debt securities $ 873,136 $ 199 $ 78,201 $ — $ 795,134 Held to Maturity State and political subdivisions $ 532,422 $ — $ 65,932 $ — $ 466,490 Mortgage-backed securities 74,904 — 11,635 — 63,269 Collateralized mortgage obligations 467,864 — 102,360 — 365,504 Total held to maturity debt securities $ 1,075,190 $ — $ 179,927 $ — $ 895,263 (1) Amortized cost for the held to maturity securities includes $227 thousand of unamortized gain in state and political subdivisions, $58 thousand of unamortized gains in mortgage-backed securities and $9.7 million of unamortized losses in collateralized mortgage obligations related to the re-classification of securities from available for sale to held to maturity on January 1, 2022.
Schedule of Debt Securities, Held-to-maturity	The following tables summarize the amortized cost, gross unrealized gains and losses and the resulting fair value of debt securities as of the dates indicated: As of March 31, 2024 (in thousands) Amortized Cost (1) Gross Gross Allowance for Credit Loss related to Debt Securities Fair Value Available for Sale U.S. Treasury securities $ 247 $ — $ — $ — $ 247 State and political subdivisions 132,150 1 8,773 — 123,378 Mortgage-backed securities 5,347 3 151 — 5,199 Collateralized loan obligations 61,914 200 248 — 61,866 Collateralized mortgage obligations 201,242 — 22,620 — 178,622 Corporate debt securities 472,217 110 44,409 — 427,918 Total available for sale debt securities $ 873,117 $ 314 $ 76,201 $ — $ 797,230 Held to Maturity State and political subdivisions $ 531,961 $ — $ 71,245 $ — $ 460,716 Mortgage-backed securities 73,668 — 12,685 — 60,983 Collateralized mortgage obligations 459,310 — 105,365 — 353,945 Total held to maturity debt securities $ 1,064,939 $ — $ 189,295 $ — $ 875,644 (1) Amortized cost for the held to maturity securities includes $231 thousand of unamortized gain in state and political subdivisions, $74 thousand of unamortized gains in mortgage-backed securities and $9.3 million of unamortized losses in collateralized mortgage obligations related to the re-classification of securities from available for sale to held to maturity on January 1, 2022. As of December 31, 2023 (in thousands) Amortized Gross Gross Allowance for Credit Loss related to Debt Securities Fair Value Available for Sale State and political subdivisions $ 139,482 $ 2 $ 9,345 $ — $ 130,139 Mortgage-backed securities 5,448 5 142 — 5,311 Collateralized loan obligations 50,541 135 239 — 50,437 Collateralized mortgage obligations 190,304 — 21,108 — 169,196 Corporate debt securities 487,361 57 47,367 — 440,051 Total available for sale debt securities $ 873,136 $ 199 $ 78,201 $ — $ 795,134 Held to Maturity State and political subdivisions $ 532,422 $ — $ 65,932 $ — $ 466,490 Mortgage-backed securities 74,904 — 11,635 — 63,269 Collateralized mortgage obligations 467,864 — 102,360 — 365,504 Total held to maturity debt securities $ 1,075,190 $ — $ 179,927 $ — $ 895,263 (1) Amortized cost for the held to maturity securities includes $227 thousand of unamortized gain in state and political subdivisions, $58 thousand of unamortized gains in mortgage-backed securities and $9.7 million of unamortized losses in collateralized mortgage obligations related to the re-classification of securities from available for sale to held to maturity on January 1, 2022.
Schedule of Debt Securities, Available-for-sale, in Unrealized Loss Position	The following table presents debt securities AFS in an unrealized loss position for which an allowance for credit losses has not been recorded as of March 31, 2024, aggregated by investment category and length of time in a continuous loss position: As of March 31, 2024 Number of Securities 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) U.S. Treasury securities 1 $ 247 $ — $ — $ — $ 247 $ — State and political subdivisions 149 3,837 114 118,100 8,659 121,937 8,773 Mortgage-backed securities 21 5 — 4,808 151 4,813 151 Collateralized loan obligations 3 22,817 234 2,929 14 25,746 248 Collateralized mortgage obligations 22 54,982 718 123,640 21,902 178,622 22,620 Corporate debt securities 130 1,929 30 417,479 44,379 419,408 44,409 Total 326 $ 83,817 $ 1,096 $ 666,956 $ 75,105 $ 750,773 $ 76,201 The following table presents debt securities AFS in an unrealized loss position for which an allowance for credit losses has not been recorded as of December 31, 2023, aggregated by investment category and length of time in a continuous loss position: As of December 31, 2023 Available for Sale Number of Securities Less than 12 Months 12 Months or More Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses (in thousands, except number of securities) State and political subdivisions 149 $ 8,417 $ 492 $ 114,713 $ 8,853 $ 123,130 $ 9,345 Mortgage-backed securities 19 — — 4,906 142 4,906 142 Collateralized loan obligations 2 17,696 239 — — 17,696 239 Collateralized mortgage obligations 20 6,278 90 127,792 21,018 134,070 21,108 Corporate debt securities 133 2,377 80 429,222 47,287 431,599 47,367 Total 323 $ 34,768 $ 901 $ 676,633 $ 77,300 $ 711,401 $ 78,201
Schedule of Proceeds and Realized Gains (Losses)	Proceeds and gross realized gains and losses on debt securities available for sale for the three months ended March 31, 2024 and 2023, were as follows: Three Months Ended (in thousands) March 31, 2024 March 31, 2023 Proceeds from sales of debt securities available for sale $ 52,323 $ 218,667 Gross realized losses from sales of debt securities available for sale (1) — (13,170) Net realized loss from sales of debt securities available for sale (1) $ — $ (13,170) (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 of debt securities of $36 thousand for the three months ended March 31, 2024, with no net realized gain from the call of debt securities recorded during the three months ended March 31, 2023.
Schedule of Investments Classified by Contractual Maturity Date	The contractual maturity distribution of investment debt securities at March 31, 2024, is shown below. Expected maturities of MBS, CLO 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 Held to Maturity (in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 60,692 $ 59,887 $ 2,510 $ 2,484 Due after one year through five years 371,630 342,646 150,788 137,380 Due after five years through ten years 145,334 125,889 250,580 214,093 Due after ten years 26,958 23,121 128,083 106,759 $ 604,614 $ 551,543 $ 531,961 $ 460,716 Mortgage-backed securities 5,347 5,199 73,668 60,983 Collateralized loan obligations 61,914 61,866 — — Collateralized mortgage obligations 201,242 178,622 459,310 353,945 Total $ 873,117 $ 797,230 $ 1,064,939 $ 875,644

Loans Receivable and the Allo_2

Loans Receivable and the Allowance for Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2024
Receivables [Abstract]
Schedule of Loans by Lending Classification	The composition of loans by class of receivable was as follows: As of (in thousands) March 31, 2024 December 31, 2023 Agricultural $ 113,029 $ 118,414 Commercial and industrial 1,105,718 1,075,003 Commercial real estate: Construction & development 403,571 323,195 Farmland 184,109 184,955 Multifamily 409,504 383,178 Commercial real estate-other 1,440,645 1,333,982 Total commercial real estate 2,437,829 2,225,310 Residential real estate: One- to four- family first liens 495,408 459,798 One- to four- family junior liens 182,001 180,639 Total residential real estate 677,409 640,437 Consumer 80,661 67,783 Loans held for investment, net of unearned income 4,414,646 4,126,947 Allowance for credit losses (55,900) (51,500) Total loans held for investment, net $ 4,358,746 $ 4,075,447
Schedule of Loans Based on Delinquency Status	The following tables present the amortized cost basis of loans based on delinquency status: Age Analysis of Past-Due Financial Assets 90 Days or More Past Due And Accruing (in thousands) Current 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total March 31, 2024 Agricultural $ 112,185 $ 384 $ — $ 460 $ 113,029 $ — Commercial and industrial 1,087,725 360 194 17,439 1,105,718 — Commercial real estate: Construction and development 403,571 — — — 403,571 — Farmland 182,368 339 — 1,402 184,109 — Multifamily 409,504 — — — 409,504 — Commercial real estate-other 1,434,435 1,561 — 4,649 1,440,645 — Total commercial real estate 2,429,878 1,900 — 6,051 2,437,829 — Residential real estate: One- to four- family first liens 488,382 3,362 1,279 2,385 495,408 925 One- to four- family junior liens 180,461 567 335 638 182,001 — Total residential real estate 668,843 3,929 1,614 3,023 677,409 925 Consumer 80,306 242 71 42 80,661 42 Total $ 4,378,937 $ 6,815 $ 1,879 $ 27,015 $ 4,414,646 $ 967 Age Analysis of Past-Due Financial Assets 90 Days or More Past Due And Accruing (in thousands) Current 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total December 31, 2023 Agricultural $ 117,852 $ 338 $ — $ 224 $ 118,414 $ — Commercial and industrial 1,058,301 440 401 15,861 1,075,003 — Commercial real estate: Construction and development 323,165 30 — — 323,195 — Farmland 182,759 677 352 1,167 184,955 — Multifamily 383,178 — — — 383,178 — Commercial real estate-other 1,327,727 2,129 1,290 2,836 1,333,982 — Total commercial real estate 2,216,829 2,836 1,642 4,003 2,225,310 — Residential real estate: One- to four- family first liens 453,212 3,572 1,741 1,273 459,798 468 One- to four- family junior liens 179,339 356 690 254 180,639 — Total residential real estate 632,551 3,928 2,431 1,527 640,437 468 Consumer 67,622 118 28 15 67,783 — Total $ 4,093,155 $ 7,660 $ 4,502 $ 21,630 $ 4,126,947 $ 468
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) March 31, 2024 December 31, 2023 March 31, 2024 December 31, 2023 March 31, 2024 December 31, 2023 Agricultural $ 460 $ 235 $ 219 $ 12 $ — $ — Commercial and industrial 17,966 17,770 12,455 12,549 — — Commercial real estate: Construction and development — — — — — — Farmland 1,538 1,654 1,390 1,490 — — Multifamily — — — — — — Commercial real estate-other 4,926 3,441 2,486 853 — — Total commercial real estate 6,464 5,095 3,876 2,343 — — Residential real estate: One- to four- family first liens 2,294 1,888 853 455 925 468 One- to four- family junior liens 1,078 876 124 — — — Total residential real estate 3,372 2,764 977 455 925 468 Consumer 38 27 — — 42 — Total $ 28,300 $ 25,891 $ 17,527 $ 15,359 $ 967 $ 468
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, in addition to the current period gross write-offs by class of receivable and vintage, based on the most recent analysis performed, as of March 31, 2024. As of March 31, 2024, there were no 'loss' rated credits. Term Loans by Origination Year Revolving Loans March 31, 2024 (in thousands) 2024 2023 2022 2021 2020 Prior Total Agricultural Pass $ 7,515 $ 9,909 $ 12,420 $ 7,156 $ 2,399 $ 1,847 $ 66,311 $ 107,557 Special mention / watch — 319 452 635 124 488 1,643 3,661 Substandard — 39 262 285 215 214 796 1,811 Doubtful — — — — — — — — Total $ 7,515 $ 10,267 $ 13,134 $ 8,076 $ 2,738 $ 2,549 $ 68,750 $ 113,029 Commercial and industrial Pass $ 27,582 $ 173,057 $ 200,277 $ 188,288 $ 112,151 $ 135,262 $ 175,914 $ 1,012,531 Special mention / watch 58 2,896 17,886 865 3,198 2,533 15,821 43,257 Substandard — 931 1,221 3,074 136 37,472 7,096 49,930 Doubtful — — — — — — — — Total $ 27,640 $ 176,884 $ 219,384 $ 192,227 $ 115,485 $ 175,267 $ 198,831 $ 1,105,718 CRE - Construction and development Pass $ 30,069 $ 123,679 $ 179,633 $ 49,896 $ 3,346 $ 2,451 $ 12,132 $ 401,206 Special mention / watch 623 263 — 454 — — 467 1,807 Substandard — 327 231 — — — — 558 Doubtful — — — — — — — — Total $ 30,692 $ 124,269 $ 179,864 $ 50,350 $ 3,346 $ 2,451 $ 12,599 $ 403,571 CRE - Farmland Pass $ 6,592 $ 26,072 $ 43,144 $ 45,254 $ 18,449 $ 19,303 $ 2,540 $ 161,354 Special mention / watch — — 6,695 2,405 5,804 1,070 719 16,693 Substandard — 383 382 1,285 1,186 2,796 30 6,062 Doubtful — — — — — — — — Total $ 6,592 $ 26,455 $ 50,221 $ 48,944 $ 25,439 $ 23,169 $ 3,289 $ 184,109 CRE - Multifamily Pass $ 456 $ 42,595 $ 97,726 $ 114,264 $ 69,748 $ 22,308 $ 5,352 $ 352,449 Special mention / watch 5,318 — 1,230 272 29,979 12,384 — 49,183 Substandard — — — 7,532 326 14 — 7,872 Doubtful — — — — — — — — Total $ 5,774 $ 42,595 $ 98,956 $ 122,068 $ 100,053 $ 34,706 $ 5,352 $ 409,504 CRE - Other Pass $ 9,484 $ 202,773 $ 316,522 $ 271,467 $ 257,023 $ 200,086 $ 58,986 $ 1,316,341 Special mention / watch 454 8,093 6,675 3,227 4,426 7,295 3,987 34,157 Substandard 1,670 284 26,247 18,401 19,018 24,527 — 90,147 Doubtful — — — — — — — — Total $ 11,608 $ 211,150 $ 349,444 $ 293,095 $ 280,467 $ 231,908 $ 62,973 $ 1,440,645 RRE - One- to four- family first liens Pass / Performing $ 17,533 $ 61,643 $ 137,014 $ 95,695 $ 53,935 $ 102,592 $ 16,707 $ 485,119 Special mention / watch — 722 710 35 607 1,772 — 3,846 Substandard / Nonperforming — 1,369 190 785 104 3,995 — 6,443 Doubtful — — — — — — — — Total $ 17,533 $ 63,734 $ 137,914 $ 96,515 $ 54,646 $ 108,359 $ 16,707 $ 495,408 RRE - One- to four- family junior liens Performing $ 4,210 $ 21,539 $ 28,673 $ 17,968 $ 7,254 $ 9,781 $ 91,497 $ 180,922 Nonperforming — — 406 — 23 650 — 1,079 Total $ 4,210 $ 21,539 $ 29,079 $ 17,968 $ 7,277 $ 10,431 $ 91,497 $ 182,001 Consumer Performing $ 7,922 $ 30,997 $ 16,110 $ 8,941 $ 3,898 $ 7,990 $ 4,765 $ 80,623 Nonperforming — 16 21 — — 1 — 38 Total $ 7,922 $ 31,013 $ 16,131 $ 8,941 $ 3,898 $ 7,991 $ 4,765 $ 80,661 Term Loans by Origination Year Revolving Loans March 31, 2024 (in thousands) 2024 2023 2022 2021 2020 Prior Total Total by Credit Quality Indicator Category Pass $ 99,231 $ 639,728 $ 986,736 $ 772,020 $ 517,051 $ 483,849 $ 337,942 $ 3,836,557 Special mention / watch 6,453 12,293 33,648 7,893 44,138 25,542 22,637 152,604 Substandard 1,670 3,333 28,533 31,362 20,985 69,018 7,922 162,823 Doubtful — — — — — — — — Performing 12,132 52,536 44,783 26,909 11,152 17,771 96,262 261,545 Nonperforming — 16 427 — 23 651 — 1,117 Total $ 119,486 $ 707,906 $ 1,094,127 $ 838,184 $ 593,349 $ 596,831 $ 464,763 $ 4,414,646 Term Loans by Origination Year Revolving Loans March 31, 2024 2024 2023 2022 2021 2020 Prior Total Year-to-date Current Period Gross Write-offs Agricultural $ — $ — $ — $ 4 $ — $ — $ — $ 4 Commercial and industrial — — 128 129 29 13 — 299 CRE - Construction and development — — — — — — — — CRE - Farmland — — — — — — — — CRE - Multifamily — — — — — — — — CRE - Other — — — — — 35 — 35 RRE - One-to-four-family first liens — — — 19 — — — 19 RRE - One-to-four-family junior liens — — — — — — — — Consumer — 276 7 3 4 — 290 Total Current Period Gross Write-offs $ — $ 276 $ 135 $ 155 $ 29 $ 52 $ — $ 647 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, 2023. As of December 31, 2023, there were no 'loss' rated credits. Term Loans by Origination Year Revolving Loans December 31, 2023 (in thousands) 2023 2022 2021 2020 2019 Prior Total Agricultural Pass $ 11,859 $ 12,149 $ 8,352 $ 2,752 $ 689 $ 1,139 $ 71,680 $ 108,620 Special mention / watch 266 550 670 91 5 522 3,705 5,809 Substandard 709 193 302 208 — 224 2,349 3,985 Doubtful — — — — — — — — Total $ 12,834 $ 12,892 $ 9,324 $ 3,051 $ 694 $ 1,885 $ 77,734 $ 118,414 Commercial and industrial Pass $ 176,021 $ 224,924 $ 193,011 $ 117,326 $ 25,555 $ 116,661 $ 147,690 $ 1,001,188 Special mention / watch 2,541 416 3,209 3,385 193 272 14,692 24,708 Substandard 897 2,921 2,010 561 8,507 29,432 4,779 49,107 Doubtful — — — — — — — — Total $ 179,459 $ 228,261 $ 198,230 $ 121,272 $ 34,255 $ 146,365 $ 167,161 $ 1,075,003 CRE - Construction and development Pass $ 99,803 $ 163,126 $ 43,189 $ 3,393 $ 821 $ 700 $ 9,552 $ 320,584 Special mention / watch 1,097 — 464 — — — 467 2,028 Substandard 343 240 — — — — — 583 Doubtful — — — — — — — — Total $ 101,243 $ 163,366 $ 43,653 $ 3,393 $ 821 $ 700 $ 10,019 $ 323,195 CRE - Farmland Pass $ 25,666 $ 44,907 $ 47,068 $ 18,863 $ 6,587 $ 14,845 $ 1,642 $ 159,578 Special mention / watch 1,229 6,898 2,409 5,982 — 965 276 17,759 Substandard 1,830 210 1,542 1,052 926 2,029 29 7,618 Doubtful — — — — — — — — Total $ 28,725 $ 52,015 $ 51,019 $ 25,897 $ 7,513 $ 17,839 $ 1,947 $ 184,955 CRE - Multifamily Pass $ 32,077 $ 96,969 $ 111,032 $ 77,532 $ 8,701 $ 6,508 $ 4,208 $ 337,027 Special mention / watch 5,318 1,237 277 18,984 7,850 4,586 — 38,252 Substandard — — 7,572 327 — — — 7,899 Doubtful — — — — — — — — Total $ 37,395 $ 98,206 $ 118,881 $ 96,843 $ 16,551 $ 11,094 $ 4,208 $ 383,178 CRE - Other Pass $ 199,698 $ 295,066 $ 256,718 $ 250,676 $ 77,509 $ 90,170 $ 51,827 $ 1,221,664 Special mention / watch 364 1,306 3,300 4,823 4,282 2,395 3,856 20,326 Substandard 325 26,555 19,253 19,103 8,242 17,876 638 91,992 Doubtful — — — — — — — — Total $ 200,387 $ 322,927 $ 279,271 $ 274,602 $ 90,033 $ 110,441 $ 56,321 $ 1,333,982 RRE - One- to four- family first liens Pass / Performing $ 62,644 $ 125,777 $ 92,767 $ 54,028 $ 19,674 $ 81,660 $ 13,283 $ 449,833 Special mention / watch 629 716 36 620 1,827 319 — 4,147 Substandard / Nonperforming 1,156 191 738 165 164 3,404 — 5,818 Doubtful — — — — — — — — Total $ 64,429 $ 126,684 $ 93,541 $ 54,813 $ 21,665 $ 85,383 $ 13,283 $ 459,798 RRE - One- to four- family junior liens Performing $ 23,551 $ 29,919 $ 18,733 $ 7,292 $ 2,590 $ 7,867 $ 89,810 $ 179,762 Nonperforming — 192 — 25 23 637 — 877 Total $ 23,551 $ 30,111 $ 18,733 $ 7,317 $ 2,613 $ 8,504 $ 89,810 $ 180,639 Consumer Performing $ 26,028 $ 14,319 $ 10,042 $ 4,421 $ 1,451 $ 7,350 $ 4,145 $ 67,756 Nonperforming — 22 — — 3 2 — 27 Total $ 26,028 $ 14,341 $ 10,042 $ 4,421 $ 1,454 $ 7,352 $ 4,145 $ 67,783 Term Loans by Origination Year Revolving Loans December 31, 2023 2023 2022 2021 2020 2019 Prior Total Total by Credit Quality Indicator Category Pass $ 607,768 $ 962,918 $ 752,137 $ 524,570 $ 139,536 $ 311,683 $ 299,882 $ 3,598,494 Special mention / watch 11,444 11,123 10,365 33,885 14,157 9,059 22,996 113,029 Substandard 5,260 30,310 31,417 21,416 17,839 52,965 7,795 167,002 Doubtful — — — — — — — — Performing 49,579 44,238 28,775 11,713 4,041 15,217 93,955 247,518 Nonperforming — 214 — 25 26 639 — 904 Total $ 674,051 $ 1,048,803 $ 822,694 $ 591,609 $ 175,599 $ 389,563 $ 424,628 $ 4,126,947 Term Loans by Origination Year Revolving Loans December 31, 2023 2023 2022 2021 2020 2019 Prior Total Year-to-date Current Period Gross Write-offs Agricultural $ — $ 8 $ 1 $ 17 $ 2 $ — $ — $ 28 Commercial and industrial 239 343 223 133 464 45 — 1,447 CRE - Construction and development — — — — — — — — CRE - Farmland — — — — — — — — CRE - Multifamily — — — — — — — — CRE - Other — — — — — 2,337 — 2,337 RRE - One-to-four-family first liens — — — — — 36 — 36 RRE - One-to-four-family junior liens — 19 — — — — — 19 Consumer — 621 30 12 12 10 — 685 Total Current Period Gross Write-offs $ 239 $ 991 $ 254 $ 162 $ 478 $ 2,428 $ — $ 4,552
Schedule of Changes in Allowance for Credit Losses	The changes in the allowance for credit losses by portfolio segment were as follows: For the Three Months Ended March 31, 2024 and 2023 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total For the Three Months Ended March 31, 2024 Beginning balance $ 613 $ 21,743 $ 23,759 $ 4,762 $ 623 $ 51,500 Charge-offs (4) (299) (35) (19) (290) (647) Recoveries 355 46 8 9 40 458 Credit loss expense (benefit) (1) (316) 392 3,040 262 1,211 4,589 Ending balance $ 648 $ 21,882 $ 26,772 $ 5,014 $ 1,584 $ 55,900 For the Three Months Ended March 31, 2023 Beginning balance $ 923 $ 22,855 $ 20,123 $ 4,678 $ 621 $ 49,200 Charge-offs (1) (320) (18) — (148) (487) Recoveries 26 75 5 4 44 154 Credit loss expense (benefit) (1) (435) (265) 1,723 (137) 47 933 Ending balance $ 513 $ 22,345 $ 21,833 $ 4,545 $ 564 $ 49,800 (1) The difference in the credit loss expense reported herein as compared to the Consolidated Statements of Income is associated with the credit loss expense of $0.1 million related to off-balance sheet credit exposures for the three months ended March 31, 2024, with no credit loss expense related to off-balance sheet credit exposures being recorded for the three months ended March 31, 2023. The composition of the allowance for credit losses by portfolio segment based on evaluation method was as follows: As of March 31, 2024 (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 $ 219 $ 16,911 $ 8,433 $ 1,636 $ — $ 27,199 Collectively evaluated for impairment 112,810 1,088,807 2,429,396 675,773 80,661 4,387,447 Total $ 113,029 $ 1,105,718 $ 2,437,829 $ 677,409 $ 80,661 $ 4,414,646 Allowance for credit losses: Individually evaluated for impairment $ — $ 2,804 $ 47 $ 118 $ — $ 2,969 Collectively evaluated for impairment 648 19,078 26,725 4,896 1,584 52,931 Total $ 648 $ 21,882 $ 26,772 $ 5,014 $ 1,584 $ 55,900 As of December 31, 2023 (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 $ 11 $ 17,231 $ 10,932 $ 983 $ — $ 29,157 Collectively evaluated for impairment 118,403 1,057,772 2,214,378 639,454 67,783 4,097,790 Total $ 118,414 $ 1,075,003 $ 2,225,310 $ 640,437 $ 67,783 $ 4,126,947 Allowance for credit losses: Individually evaluated for impairment $ — $ 2,616 $ 705 $ 16 $ — $ 3,337 Collectively evaluated for impairment 613 19,127 23,054 4,746 623 48,163 Total $ 613 $ 21,743 $ 23,759 $ 4,762 $ 623 $ 51,500
Schedule of Financing Receivable, Collateral Depend Loans	The following tables present 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 March 31, 2024 (in thousands) Primary Type of Collateral Real Estate Equipment Other Total ACL Allocation Agricultural $ 11 $ — $ 208 $ 219 $ — Commercial and industrial 16,911 — — 16,911 2,804 Commercial real estate: Construction and development — — — — — Farmland 2,334 — 1,278 3,612 — Multifamily — — — — — Commercial real estate-other 4,821 — — 4,821 47 Residential real estate: One- to four- family first liens 853 — — 853 — One- to four- family junior liens 783 — — 783 118 Consumer — — — — — Total $ 25,713 $ — $ 1,486 $ 27,199 $ 2,969 As of December 31, 2023 (in thousands) Primary Type of Collateral Real Estate Equipment Other Total ACL Allocation Agricultural $ 11 $ — $ — $ 11 $ — Commercial and industrial 15,991 — 1,240 17,231 2,616 Commercial real estate: Construction and development — — — — — Farmland 5,403 — — 5,403 — Multifamily — — — — — Commercial real estate-other 5,350 — 179 5,529 705 Residential real estate: One- to four- family first liens 481 — — 481 — One- to four- family junior liens — — 502 502 16 Consumer — — — — — Total $ 27,236 $ — $ 1,921 $ 29,157 $ 3,337
Schedule of TDRs by Class of Financing Receivable	The following tables present the amortized cost basis of loans as of March 31, 2024 and March 31, 2023 that were modified during the three months ended March 31, 2024 and March 31, 2023 and experiencing financial difficulty at the time of the modification by class and by type of modification: For the Three Months Ended March 31, 2024 Combination: (dollars in thousands) Principal Forgiveness Payment Delay Term Extension Interest Rate Reduction Term Extension & Interest Rate Reduction Principal Forgiveness & Term Extension Principal Forgiveness, Term Extension, & Interest Rate Reduction Payment Delay & Term Extension Total Class of Financing Receivable Three Months Ended March 31, 2024 Commercial and industrial $ — $ — $ 350 $ — $ — $ — $ — $ — 0.03 % CRE - Other — — 202 — — — — — 0.01 % RRE - One- to four- family first liens — 253 — — — — — — 0.05 % RRE - One- to four- family junior liens — — 136 — — — — — 0.07 % Total $ — $ 253 $ 688 $ — $ — $ — $ — $ — For the Three Months Ended March 31, 2023 Combination: (dollars in thousands) Principal Forgiveness Payment Delay Term Extension Interest Rate Reduction Term Extension & Interest Rate Reduction Principal Forgiveness & Term Extension Principal Forgiveness, Term Extension, & Interest Rate Reduction Payment Delay & Term Extension Total Class of Financing Receivable Three Months Ended March 31, 2023 Agricultural $ — $ 16 $ 1,502 $ — $ — $ — $ — $ — 1.42 % Commercial and industrial — — 50 — 120 307 — — 0.04 % CRE - Other — — — — — — 20 — — % Total $ — $ 16 $ 1,552 $ — $ 120 $ 307 $ 20 $ — The following tables present the performance, as of March 31, 2024 and March 31, 2023, of loans that were modified while the borrower was experiencing financial difficulty at the time of modification in the last 12 months: As of March 31, 2024 (in thousands) Current 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total Commercial and industrial $ 4,028 $ 76 $ — $ 995 $ 5,099 CRE - Construction and development 559 — — — 559 CRE - Farmland 29 — — 352 381 CRE - Other 6,066 — — — 6,066 RRE - One- to four- family first liens 253 — — — 253 RRE - One- to four- family junior liens 149 — — — 149 Total $ 11,084 $ 76 $ — $ 1,347 $ 12,507 As of March 31, 2023 (in thousands) Current 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total Agricultural $ 1,518 $ — $ — $ — $ 1,518 Commercial and industrial 477 — — — 477 CRE - Other — — — 20 20 Total $ 1,995 $ — $ — $ 20 $ 2,015 The following tables present the financial effect of the loan modifications presented above to borrowers experiencing financial difficulty for the three months ended March 31, 2024 and March 31, 2023: (dollars in thousands) Principal Forgiveness Weighted Average Interest Rate Reduction Weighted Average Term Extension (Months) Three Months Ended March 31, 2024 Commercial and industrial $ — — % 4.4 CRE - Other — — % 5.4 RRE - One- to four- family junior liens — — % 122.0 Total $ — — % 27.9 (dollars in thousands) Principal Forgiveness Weighted Average Interest Rate Reduction Weighted Average Term Extension (Months) Three Months Ended March 31, 2023 Agricultural $ — — % 2.37 Commercial and industrial 63 1.25 11.89 CRE - Other 18 7.00 2.47 Total $ 81 2.07 % 4.64

Derivatives, Hedging Activiti_2

Derivatives, Hedging Activities and Balance Sheet Offsetting (Tables)	3 Months Ended
	Mar. 31, 2024
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. The fair values of the Company's derivative instrument assets and liabilities are summarized as follows: As of March 31, 2024 As of December 31, 2023 Notional Amount Fair Value Notional Amount Fair Value (in thousands) Assets Liabilities Assets Liabilities Designated as hedging instruments: Fair value hedges: Interest rate swaps - loans $ 50,425 $ 2,529 $ 601 $ 41,101 $ 2,071 $ 902 Interest rate swaps - securities 150,000 144 90 150,000 — 821 Cash flow hedges Interest rate swaps 200,000 2,660 — 200,000 940 264 Total $ 400,425 $ 5,333 $ 691 $ 391,101 $ 3,011 $ 1,987 Not designated as hedging instruments: Interest rate swaps $ 522,777 $ 22,429 $ 22,438 $ 432,648 $ 22,028 $ 22,038 RPAs - protection sold 31,175 5 — 18,778 4 — RPAs - protection purchased 31,089 — 4 31,145 — 9 Interest rate lock commitments 3,623 77 — 1,461 50 — Interest rate forward loan sales contracts 3,730 — 8 2,075 — 23 Total $ 592,394 $ 22,511 $ 22,450 $ 486,107 $ 22,082 $ 22,070
Schedule of Derivatives Instrument Impacts on Statements	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 periods indicated: Location and Amount of Gain or Loss Recognized in Income on Hedging Relationships For the Three Months Ended March 31, 2024 2023 (in thousands) Interest Income Other Income Interest Income Other Income Income and expense included in the consolidated statements of income related to the effects of fair value or cash flow hedges are recorded $ 408 $ — $ 159 $ — The effects of fair value and cash flow hedging: Gain (loss) on fair value hedging relationships in subtopic 815-20: Interest contracts - loans: Hedged items (764) — 562 — Derivative designated as hedging instruments 1,023 — (402) — Interest contracts - securities: Hedged items (882) — — — Derivative designated as hedging instruments 1,059 — — —
Schedule of Hedged Items In Fair Value Hedging Relationship	As of March 31, 2024, the following amounts were recorded on the balance sheet related to cumulative basis adjustment for fair value hedges: Line Item in the Balance Sheet in Which the Hedged Item is Included Carrying Amount of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset (in thousands) Loans $ 48,539 $ (1,926) Securities $ 149,937 $ (63)
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 periods indicated: Location in the Consolidated Statements of Income For the Three Months Ended March 31, (in thousands) 2024 2023 Interest rate swaps Other income $ — $ — RPAs Other income 5 69 Interest rate lock commitments Loan revenue 27 94 Interest rate forward loan sales contracts Loan revenue 14 (30) Total $ 46 $ 133
Schedule of Offsetting Derivative Assets And Liabilities	The table below presents gross derivatives and the respective collateral received or pledged in the form of other financial instruments as of March 31, 2024 and December 31, 2023, 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 Not Offset in the Balance Sheet (in thousands) Gross Amounts Recognized Gross Amounts Offset in the Balance Sheet Net Amounts presented in the Balance Sheet Financial Instruments Cash Collateral Received / Paid Net Assets /Liabilities As of March 31, 2024 Asset Derivatives $ 27,844 $ — $ 27,844 $ — $ 17,998 $ 9,846 Liability Derivatives 23,141 — 23,141 — 2,730 20,411 As of December 31, 2023 Asset Derivatives $ 25,093 $ — $ 25,093 $ — $ 15,549 $ 9,544 Liability Derivatives 24,057 — 24,057 — 2,420 21,637

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	The following table presents the changes in the carrying amount of goodwill for the period indicated: (in thousands) As of March 31, 2024 As of December 31, 2023 Goodwill, beginning of period $ 62,477 $ 62,477 Goodwill from the acquisition of DNVB 8,641 — Total goodwill, end of period $ 71,118 $ 62,477 As indicated in Note 2. Business Combinations , the Company acquired a core deposit intangible in connection with its acquisition of DNVB on January 31, 2024 with an estimated fair value of $7.1 million, which will be amortized over its estimated useful life of 10 years. The following table presents the gross carrying amount, accumulated amortization, and net carrying amount of other intangible assets as of the dates indicated: As of March 31, 2024 As of December 31, 2023 (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Core deposit intangible $ 65,345 $ (43,044) $ 22,301 $ 58,245 $ (41,499) $ 16,746 Customer relationship intangible 5,265 (5,092) 173 5,265 (5,008) 257 Other 2,700 (2,683) 17 2,700 (2,674) 26 $ 73,310 $ (50,819) $ 22,491 $ 66,210 $ (49,181) $ 17,029 Indefinite-lived trade name intangible 7,040 7,040 Total other intangible assets, net $ 29,531 $ 24,069
Schedule of Indefinite-Lived Intangible Assets	The following table presents the gross carrying amount, accumulated amortization, and net carrying amount of other intangible assets as of the dates indicated: As of March 31, 2024 As of December 31, 2023 (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Core deposit intangible $ 65,345 $ (43,044) $ 22,301 $ 58,245 $ (41,499) $ 16,746 Customer relationship intangible 5,265 (5,092) 173 5,265 (5,008) 257 Other 2,700 (2,683) 17 2,700 (2,674) 26 $ 73,310 $ (50,819) $ 22,491 $ 66,210 $ (49,181) $ 17,029 Indefinite-lived trade name intangible 7,040 7,040 Total other intangible assets, net $ 29,531 $ 24,069
Schedule of Future Amortization Expense	The following table provides the estimated future amortization expense for the remaining nine months of the year ending December 31, 2024 and the succeeding annual periods: (in thousands) Core Deposit Intangible Customer Relationship Intangible Other Total 2024 $ 4,344 $ 155 $ 15 $ 4,514 2025 4,924 18 2 4,944 2026 3,840 — — 3,840 2027 2,757 — — 2,757 2028 2,110 — — 2,110 Thereafter 4,326 — — 4,326 Total $ 22,301 $ 173 $ 17 $ 22,491

Other Assets (Tables)

Other Assets (Tables)	3 Months Ended
	Mar. 31, 2024
Other Assets [Abstract]
Schedule of Other Assets	The components of the Company's other assets as of March 31, 2024 and December 31, 2023 were as follows: (in thousands) March 31, 2024 December 31, 2023 Bank-owned life insurance $ 98,700 $ 98,039 Interest receivable 30,728 29,768 FHLB stock 5,220 5,806 Mortgage servicing rights 12,965 13,333 Operating lease right-of-use assets, net 2,153 2,337 Federal and state income taxes, current 579 1,556 Federal and state income taxes, deferred 29,582 31,218 Derivative assets 27,844 25,093 Other receivables/assets 18,706 15,630 $ 226,477 $ 222,780

Deposits (Tables)

Deposits (Tables)	3 Months Ended
	Mar. 31, 2024
Deposits [Abstract]
Schedule of Deposit Liabilities	The following table presents the composition of our deposits as of the dates indicated: (in thousands) March 31, 2024 December 31, 2023 Noninterest bearing deposits $ 920,764 $ 897,053 Interest checking deposits 1,349,823 1,320,435 Money market deposits 1,122,717 1,105,493 Savings deposits 728,276 650,655 Time deposits of $250 and under 992,851 973,253 Time deposits over $250 470,805 448,784 Total deposits $ 5,585,236 $ 5,395,673

Short-Term Borrowings (Tables)

Short-Term Borrowings (Tables)	3 Months Ended
	Mar. 31, 2024
Short-Term Debt [Abstract]
Schedule of Short-Term Borrowings	The following table summarizes our short-term borrowings as of the dates indicated: March 31, 2024 December 31, 2023 (in thousands) Weighted Average Rate Balance Weighted Average Rate Balance Securities sold under agreements to repurchase 0.68 % $ 4,988 0.72 % $ 5,064 Federal Home Loan Bank advances — — 5.64 10,200 Federal Reserve Bank borrowings 4.77 405,000 4.82 285,000 Unsecured line of credit 6.88 13,000 — — Total 4.79 % $ 422,988 4.78 % $ 300,264

Long-Term Debt (Tables)

Long-Term Debt (Tables)	3 Months Ended
	Mar. 31, 2024
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: March 31, 2024 December 31, 2023 March 31, 2024 December 31, 2023 (in thousands) Face Value Book Value Interest Rate (1) Rate Maturity Date Callable Date ATBancorp Statutory Trust I $ 7,732 $ 6,980 $ 6,970 1.68% Margin 7.27 % 7.33 % 06/15/2036 06/15/2011 ATBancorp Statutory Trust II 12,372 11,051 11,034 1.65% Margin 7.24 % 7.30 % 09/15/2037 06/15/2012 Barron Investment Capital Trust I 2,062 1,868 1,861 2.15% Margin 7.73 % 7.77 % 09/23/2036 09/23/2011 Central Bancshares Capital Trust II 7,217 6,974 6,964 3.50% Margin 9.09 % 9.15 % 03/15/2038 03/15/2013 MidWestOne Statutory Trust II 15,464 15,464 15,464 1.59% Margin 7.18 % 7.24 % 12/15/2037 12/15/2012 Total $ 44,847 $ 42,337 $ 42,293 (1) Interest rate is equal to the Three-month CME Term SOFR + 0.26% Spread + Applicable Margin Other long-term borrowings were as follows as of March 31, 2024 and December 31, 2023: March 31, 2024 December 31, 2023 (in thousands) Weighted Average Rate Balance Weighted Average Rate Balance Finance lease payable 8.89 % $ 554 8.89 % $ 604 FHLB borrowings 3.11 6,255 3.11 6,262 Note payable to unaffiliated bank 6.88 8,750 6.89 10,000 Total 5.44 % $ 15,559 5.56 % $ 16,866
Schedule of Federal Home Loan Bank, Advances, by Branch of FHLB Bank	As of March 31, 2024, FHLB borrowings were as follows: (in thousands) Weighted Average Rate Amount Due in 2024 3.11 % $ 6,250 Valuation adjustment from acquisition accounting 5 Total $ 6,255

Earnings per Share (Tables)

Earnings per Share (Tables)	3 Months Ended
	Mar. 31, 2024
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: Three Months Ended March 31, (dollars in thousands, except per share amounts) 2024 2023 Basic Earnings Per Share: Net income $ 3,269 $ 1,397 Weighted average shares outstanding 15,722,697 15,649,651 Basic earnings per common share $ 0.21 $ 0.09 Diluted Earnings Per Share: Net income $ 3,269 $ 1,397 Weighted average shares outstanding, including all dilutive potential shares 15,773,521 15,691,168 Diluted earnings per common share $ 0.21 $ 0.09

Regulatory Capital Requiremen_2

Regulatory Capital Requirements and Restrictions on Subsidiary Cash (Tables)	3 Months Ended
	Mar. 31, 2024
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 at March 31, 2024 and December 31, 2023, 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 Amount Ratio At March 31, 2024 Consolidated: Total capital/risk weighted assets $661,448 11.97% $580,192 10.50% N/A N/A Tier 1 capital/risk weighted assets 538,756 9.75 469,679 8.50 N/A N/A Common equity tier 1 capital/risk weighted assets 496,419 8.98 386,795 7.00 N/A N/A Tier 1 leverage capital/average assets 538,756 8.16 264,001 4.00 N/A N/A MidWest One Bank: Total capital/risk weighted assets $675,287 12.25% $578,805 10.50% $551,243 10.00% Tier 1 capital/risk weighted assets 617,596 11.20 468,557 8.50 440,995 8.00 Common equity tier 1 capital/risk weighted assets 617,596 11.20 385,870 7.00 358,308 6.50 Tier 1 leverage capital/average assets 617,596 9.36 263,801 4.00 329,751 5.00 At December 31, 2023 Consolidated: Total capital/risk weighted assets $668,748 12.53% $560,596 10.50% N/A N/A Tier 1 capital/risk weighted assets 554,177 10.38 453,816 8.50 N/A N/A Common equity tier 1 capital/risk weighted assets 511,884 9.59 373,731 7.00 N/A N/A Tier 1 leverage capital/average assets 554,177 8.58 258,487 4.00 N/A N/A MidWest One Bank: Total capital/risk weighted assets $656,027 12.49% $551,658 10.50% $525,388 10.00% Tier 1 capital/risk weighted assets 606,456 11.54 446,580 8.50 420,310 8.00 Common equity tier 1 capital/risk weighted assets 606,456 11.54 367,772 7.00 341,502 6.50 Tier 1 leverage capital/average assets 606,456 9.39 258,339 4.00 322,924 5.00 (1)

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Schedule of Commitments	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: March 31, 2024 December 31, 2023 (in thousands) Commitments to extend credit $ 1,230,612 $ 1,203,001 Commitments to sell loans 2,329 1,045 Standby letters of credit 8,154 7,795 Total $ 1,241,095 $ 1,211,841

Fair Value of Financial Instr_2

Fair Value of Financial Instruments and Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Schedule of Fair Value Measured on Recurring Basis	The following tables summarize assets and liabilities measured at fair value on a recurring basis as of March 31, 2024 and December 31, 2023, by level within the fair value hierarchy: Fair Value Measurement at March 31, 2024 Using (in thousands) Total Level 1 Level 2 Level 3 Assets: Available for sale debt securities: U.S. Treasury securities $ 247 $ — $ 247 $ — State and political subdivisions 123,378 — 123,378 — Mortgage-backed securities 5,199 — 5,199 — Collateralized loan obligations 61,866 — 61,866 — Collateralized mortgage obligations 178,622 — 178,622 — Corporate debt securities 427,918 — 427,918 — Derivative assets 27,844 — 27,767 77 Mortgage servicing rights 12,965 — 12,965 — Liabilities: Derivative liabilities $ 23,141 $ — $ 23,141 $ — Fair Value Measurement at December 31, 2023 Using (in thousands) Total Level 1 Level 2 Level 3 Assets: Debt securities available for sale: State and political subdivisions $ 130,139 $ — $ 130,139 $ — Mortgage-backed securities 5,311 — 5,311 — Collateralized loan obligations 50,437 — 50,437 — Collateralized mortgage obligations 169,196 — 169,196 — Corporate debt securities 440,051 — 440,051 — Derivative assets 25,093 — 25,043 50 Mortgage servicing rights 13,333 — 13,333 — Liabilities: Derivative liabilities $ 24,057 $ — $ 24,057 $ —
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 at the dates indicated: Fair Value at (dollars in thousands) March 31, 2024 December 31, 2023 Valuation Techniques(s) Unobservable Input Range of Inputs Weighted Average Interest rate lock commitments $ 77 $ 50 Quoted or published market prices of similar instruments, adjusted for factors such as pull-through rate assumptions Pull-through rate 71% - 100% 86% The following table 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 at the dates indicated: Fair Value at (dollars in thousands) March 31, 2024 December 31, 2023 Valuation Techniques(s) Unobservable Input Range of Inputs Weighted Average Collateral dependent individually analyzed loans $ 4,481 $ 6,524 Fair value of collateral Valuation adjustments —% - 33% 11% Foreclosed assets, net $ 3,897 $ 3,929 Fair value of collateral Valuation adjustments 7% - 11% 11%
Schedule of Fair Value Measured on Nonrecurring Basis	The following table presents assets measured at fair value on a nonrecurring basis at the dates indicated: Fair Value Measurement at March 31, 2024 Using (in thousands) Total Level 1 Level 2 Level 3 Collateral dependent individually analyzed loans $ 4,481 $ — $ — $ 4,481 Foreclosed assets, net 3,897 — — 3,897 Fair Value Measurement at December 31, 2023 Using (in thousands) Total Level 1 Level 2 Level 3 Collateral dependent individually analyzed loans $ 6,524 $ — $ — $ 6,524 Foreclosed assets, net 3,929 — — 3,929
Schedule of Fair Value, by Balance Sheet Grouping	The carrying amount and estimated fair value of financial instruments at March 31, 2024 and December 31, 2023 were as follows: March 31, 2024 (in thousands) Carrying Estimated Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 97,762 $ 97,762 $ 97,762 $ — $ — Debt securities available for sale 797,230 797,230 — 797,230 — Debt securities held to maturity 1,064,939 875,644 — 875,644 — Loans held for sale 2,329 2,357 — 2,357 — Loans held for investment, net 4,358,746 4,220,905 — — 4,220,905 Interest receivable 30,728 30,728 — 30,728 — FHLB stock 5,220 5,220 — 5,220 — Derivative assets 27,844 27,844 — 27,767 77 Financial liabilities: Noninterest bearing deposits 920,764 920,764 920,764 — — Interest bearing deposits 4,664,472 4,635,692 3,200,816 1,434,876 — Short-term borrowings 422,988 422,988 422,988 — — Finance leases payable 554 554 — 554 — FHLB borrowings 6,255 5,929 — 5,929 — Junior subordinated notes issued to capital trusts 42,337 37,990 — 37,990 — Subordinated debentures 64,170 60,876 — 60,876 — Other long-term debt 8,750 8,750 — 8,750 — Derivative liabilities 23,141 23,141 — 23,141 — December 31, 2023 (in thousands) Carrying Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 81,727 $ 81,727 $ 81,727 $ — $ — Debt securities available for sale 795,134 795,134 — 795,134 — Debt securities held to maturity 1,075,190 895,263 — 895,263 — Loans held for sale 1,045 1,083 — 1,083 — Loans held for investment, net 4,075,447 3,953,368 — — 3,953,368 Interest receivable 29,768 29,768 — 29,768 — FHLB stock 5,806 5,806 — 5,806 — Derivative assets 25,093 25,093 — 25,043 50 Financial liabilities: Noninterest bearing deposits 897,053 897,053 897,053 — — Interest bearing deposits 4,498,620 4,489,322 3,076,582 1,412,740 — Short-term borrowings 300,264 300,264 300,264 — — Finance leases payable 604 604 — 604 — FHLB borrowings 6,262 6,199 — 6,199 — Junior subordinated notes issued to capital trusts 42,293 37,938 — 37,938 — Subordinated debentures 64,137 61,940 — 61,940 — Other long-term debt 10,000 10,000 — 10,000 — Derivative liabilities 24,057 24,057 — 24,057 —

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2024
Leases [Abstract]
Schedule of Lease Assets and Liabilities	(in thousands) Classification March 31, 2024 December 31, 2023 Operating lease right-of-use assets Other assets $ 2,153 $ 2,337 Finance lease right-of-use asset Premises and equipment, net 231 255 Total right-of-use assets $ 2,384 $ 2,592 Operating lease liability Other liabilities $ 2,842 $ 3,078 Finance lease liability Long-term debt 554 604 Total lease liabilities $ 3,396 $ 3,682 Weighted-average remaining lease term: Operating leases 10.61 years 10.20 years Finance lease 2.42 years 2.67 years Weighted-average discount rate: Operating leases 4.54 % 4.43 % 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. Three Months Ended March 31, (in thousands) 2024 2023 Lease Costs Operating lease cost $ 388 $ 292 Variable lease cost 7 7 Interest on lease liabilities (1) 13 17 Amortization of right-of-use assets 24 24 Net lease cost $ 432 $ 340 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 822 $ 605 Operating cash flows from finance lease 13 17 Finance cash flows from finance lease 50 43 Supplemental non-cash information on lease liabilities: Right-of-use assets obtained in exchange for new operating lease liabilities 156 292 (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 for the remaining nine-months ending December 31, 2024 and the succeeding annual periods were as follows: (in thousands) Finance Leases Operating Leases December 31, 2024 $ 188 $ 734 December 31, 2025 254 601 December 31, 2026 172 447 December 31, 2027 — 302 December 31, 2028 — 138 Thereafter — 1,600 Total undiscounted lease payment $ 614 $ 3,822 Amounts representing interest (60) (980) Lease liability $ 554 $ 2,842
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 for the remaining nine-months ending December 31, 2024 and the succeeding annual periods were as follows: (in thousands) Finance Leases Operating Leases December 31, 2024 $ 188 $ 734 December 31, 2025 254 601 December 31, 2026 172 447 December 31, 2027 — 302 December 31, 2028 — 138 Thereafter — 1,600 Total undiscounted lease payment $ 614 $ 3,822 Amounts representing interest (60) (980) Lease liability $ 554 $ 2,842

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2024
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table summarizes the changes in accumulated other comprehensive income (loss) by component, net of tax: (in thousands) Unrealized Gain (Loss) from AFS Debt Securities Reclassification of AFS Debt Securities to HTM Unrealized Gain from Cash Flow Hedging Instruments Total Balance, December 31, 2022 $ (91,852) $ 2,805 $ — $ (89,047) Other comprehensive (loss) income before reclassifications (213) 434 103 324 Amounts reclassified from AOCI 9,838 — — 9,838 Net current-period other comprehensive income 9,625 434 103 10,162 Balance, March 31, 2023 $ (82,227) $ 3,239 $ 103 $ (78,885) Balance, December 31, 2023 $ (69,915) $ 4,511 $ 505 $ (64,899) Other comprehensive income before reclassifications 1,607 374 2,071 4,052 Amounts reclassified from AOCI 632 — (589) 43 Net current-period other comprehensive income 2,239 374 1,482 4,095 Balance, March 31, 2024 $ (67,676) $ 4,885 $ 1,987 $ (60,804)
Schedule of Reclassification out of Accumulated Other Comprehensive Income	The following table presents reclassifications out of AOCI: Three-Months Ended March 31, (in thousands) 2024 2023 Investment securities (gains) losses, net $ (36) $ 13,170 Interest income 882 — Interest expense (788) — Income tax expense (15) (3,332) Net of tax $ 43 $ 9,838

Nature of Business and Signif_3

Nature of Business and Significant Accounting Policies (Details) $ in Millions		3 Months Ended
	Jan. 31, 2024 USD ($)	Mar. 31, 2024 segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of reportable segments | segment		1
DNVB
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business combination, consideration transferred | $	$ 32.6

Business Combinations - Additio

Business Combinations - Additional Information (Details) - DNVB $ in Thousands	Jan. 31, 2024 USD ($)
Business Acquisition [Line Items]
Interest acquired	100%
Cash consideration	$ 32,600

Business Combinations - Assets

Business Combinations - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Jan. 31, 2024	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Liabilities assumed
Goodwill		$ 71,118	$ 62,477		$ 62,477
DNVB
Merger consideration
Cash consideration	$ 32,600
Assets acquired
Cash and due from banks	462
Interest earning deposits in banks	3,517
Debt securities	52,493	52,493		$ 0
Loans held for investment	207,095
Premises and equipment	13,470	11,091		0
Core deposit intangible	7,100	7,100		0
Other assets	4,987	4,987		0
Total assets acquired	289,124
Liabilities assumed
Deposits	(224,248)	(224,248)		0
Short-term borrowings	(37,500)
Other liabilities	(3,417)
Total liabilities assumed	(265,165)
Identifiable net assets acquired, at fair value	23,959
Goodwill	$ 8,641	$ 8,641		$ 0

Business Combinations - Pro For

Business Combinations - Pro Forma Information (Details) - DNVB - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Business Acquisition [Line Items]
Total revenues	$ 45,298	$ 38,963
Net income (loss)	$ 6,466	$ (1,662)
EPS - basic (in dollars per share)	$ 0.41	$ (0.11)
EPS - diluted (in dollars per share)	$ 0.41	$ (0.11)

Business Combinations - Acquisi

Business Combinations - Acquisition-Related Expenses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Noninterest Expense
Compensation and employee benefits	$ 20,930	$ 19,607
Occupancy expense of premises, net	2,813	2,746
Equipment	2,600	2,171
Legal and professional	2,059	1,736
Data processing	1,360	1,363
Communications	196	261
Other	2,072	1,976
DNVB
Noninterest Expense
Compensation and employee benefits	241	70
Occupancy expense of premises, net	152	0
Equipment	149	0
Legal and professional	573	0
Data processing	61	65
Marketing	32	0
Communications	1	0
Other	105	1
Total acquisition-related expenses	$ 1,314	$ 136

Debt Securities - Additional In

Debt Securities - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) security	Dec. 31, 2023 USD ($) security
Available for Sale
Net unrealized after tax loss from transfer of AFS to held-to-maturity classification	$ 6,600
Debt securities available for sale	797,230	$ 795,134
Interest receivable	$ 30,728	$ 29,768
Securities in continuous unrealized loss position | security	326	323
Accumulated unrealized losses	$ 76,201	$ 78,201
Asset Pledged as Collateral without Right
Available for Sale
Debt securities available for sale	1,240,000	1,160,000
Debt Securities Available For Sale Securities
Available for Sale
Interest receivable	5,800	5,500
Debt, Held to Maturity Securities
Available for Sale
Interest receivable	3,500	3,700
State and political subdivisions
Available for Sale
Debt securities available for sale	$ 123,378	$ 130,139
Securities in continuous unrealized loss position | security	149	149
Accumulated unrealized losses	$ 8,773	$ 9,345
Mortgage-backed securities
Available for Sale
Debt securities available for sale	$ 5,199	$ 5,311
Securities in continuous unrealized loss position | security	21	19
Accumulated unrealized losses	$ 151	$ 142
Collateralized mortgage obligations
Available for Sale
Debt securities available for sale	$ 178,622	$ 169,196
Securities in continuous unrealized loss position | security	22	20
Accumulated unrealized losses	$ 22,620	$ 21,108
Mortgage backed securities and collateralized mortgage obligations
Available for Sale
Accumulated unrealized losses	22,800
Collateralized loan obligations
Available for Sale
Debt securities available for sale	$ 61,866	$ 50,437
Securities in continuous unrealized loss position | security	3	2
Accumulated unrealized losses	$ 248	$ 239
Corporate debt securities
Available for Sale
Debt securities available for sale	$ 427,918	$ 440,051
Securities in continuous unrealized loss position | security	130	133
Accumulated unrealized losses	$ 44,409	$ 47,367

Debt Securities - Schedule of A

Debt Securities - Schedule of Available for Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Dec. 31, 2021
Available for Sale
Amortized Cost	$ 873,117	$ 873,136
Gross Unrealized Gains	314	199
Gross Unrealized Losses	76,201	78,201
Allowance for Credit Loss related to Debt Securities	0	0
Debt securities available for sale	797,230	795,134
Held to Maturity
Amortized cost	1,064,939	1,075,190
Gross Unrealized Gains	0	0
Gross Unrealized Losses	189,295	179,927
Allowance for Credit Loss related to Debt Securities	0	0
Fair Value	875,644	895,263
Amortized Cost	873,117	873,136
Gross Unrealized Gains	314	199
Gross Unrealized Losses	76,201	78,201
Allowance for Credit Loss related to Debt Securities	0	0
Debt securities available for sale	797,230	795,134
U.S. Treasury securities
Available for Sale
Amortized Cost	247
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Allowance for Credit Loss related to Debt Securities	0
Debt securities available for sale	247
Held to Maturity
Amortized Cost	247
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Allowance for Credit Loss related to Debt Securities	0
Debt securities available for sale	247
State and political subdivisions
Available for Sale
Amortized Cost	132,150	139,482
Gross Unrealized Gains	1	2
Gross Unrealized Losses	8,773	9,345
Allowance for Credit Loss related to Debt Securities	0	0
Debt securities available for sale	123,378	130,139
Gain related to reclassification	231
Held to Maturity
Amortized cost	531,961	532,422
Gross Unrealized Gains	0	0	$ 227
Gross Unrealized Losses	71,245	65,932
Allowance for Credit Loss related to Debt Securities	0	0
Fair Value	460,716	466,490
Amortized Cost	132,150	139,482
Gross Unrealized Gains	1	2
Gross Unrealized Losses	8,773	9,345
Allowance for Credit Loss related to Debt Securities	0	0
Debt securities available for sale	123,378	130,139
Mortgage-backed securities
Available for Sale
Amortized Cost	5,347	5,448
Gross Unrealized Gains	3	5
Gross Unrealized Losses	151	142
Allowance for Credit Loss related to Debt Securities	0	0
Debt securities available for sale	5,199	5,311
Gain related to reclassification	74
Loss related to reclassification			58
Held to Maturity
Amortized cost	73,668	74,904
Gross Unrealized Gains	0	0
Gross Unrealized Losses	12,685	11,635
Allowance for Credit Loss related to Debt Securities	0	0
Fair Value	60,983	63,269
Loss related to reclassification			58
Amortized Cost	5,347	5,448
Gross Unrealized Gains	3	5
Gross Unrealized Losses	151	142
Allowance for Credit Loss related to Debt Securities	0	0
Debt securities available for sale	5,199	5,311
Collateralized loan obligations
Available for Sale
Amortized Cost	61,914	50,541
Gross Unrealized Gains	200	135
Gross Unrealized Losses	248	239
Allowance for Credit Loss related to Debt Securities	0	0
Debt securities available for sale	61,866	50,437
Held to Maturity
Amortized cost	0
Fair Value	0
Amortized Cost	61,914	50,541
Gross Unrealized Gains	200	135
Gross Unrealized Losses	248	239
Allowance for Credit Loss related to Debt Securities	0	0
Debt securities available for sale	61,866	50,437
Collateralized mortgage obligations
Available for Sale
Amortized Cost	201,242	190,304
Gross Unrealized Gains	0	0
Gross Unrealized Losses	22,620	21,108
Allowance for Credit Loss related to Debt Securities	0	0
Debt securities available for sale	178,622	169,196
Loss related to reclassification	9,300		9,700
Held to Maturity
Amortized cost	459,310	467,864
Gross Unrealized Gains	0	0
Gross Unrealized Losses	105,365	102,360
Allowance for Credit Loss related to Debt Securities	0	0
Fair Value	353,945	365,504
Loss related to reclassification	9,300		$ 9,700
Amortized Cost	201,242	190,304
Gross Unrealized Gains	0	0
Gross Unrealized Losses	22,620	21,108
Allowance for Credit Loss related to Debt Securities	0	0
Debt securities available for sale	178,622	169,196
Corporate debt securities
Available for Sale
Amortized Cost	472,217	487,361
Gross Unrealized Gains	110	57
Gross Unrealized Losses	44,409	47,367
Allowance for Credit Loss related to Debt Securities	0	0
Debt securities available for sale	427,918	440,051
Held to Maturity
Amortized Cost	472,217	487,361
Gross Unrealized Gains	110	57
Gross Unrealized Losses	44,409	47,367
Allowance for Credit Loss related to Debt Securities	0	0
Debt securities available for sale	$ 427,918	$ 440,051

Debt Securities - Schedule of_2

Debt Securities - Schedule of Available for Sale Securities in Continuous Loss Position (Details) $ in Thousands	Mar. 31, 2024 USD ($) security	Dec. 31, 2023 USD ($) security
Available for Sale
Number of Securities | security	326	323
Less than 12 Months, Fair Value	$ 83,817	$ 34,768
Less than 12 Months, Unrealized Losses	1,096	901
12 Months or More, Fair Value	666,956	676,633
12 Months or More, Unrealized Loss	75,105	77,300
Fair Value	750,773	711,401
Unrealized Losses	$ 76,201	$ 78,201
U.S. Treasury securities
Available for Sale
Number of Securities | security	1
Less than 12 Months, Fair Value	$ 247
Less than 12 Months, Unrealized Losses	0
12 Months or More, Fair Value	0
12 Months or More, Unrealized Loss	0
Fair Value	247
Unrealized Losses	$ 0
State and political subdivisions
Available for Sale
Number of Securities | security	149	149
Less than 12 Months, Fair Value	$ 3,837	$ 8,417
Less than 12 Months, Unrealized Losses	114	492
12 Months or More, Fair Value	118,100	114,713
12 Months or More, Unrealized Loss	8,659	8,853
Fair Value	121,937	123,130
Unrealized Losses	$ 8,773	$ 9,345
Mortgage-backed securities
Available for Sale
Number of Securities | security	21	19
Less than 12 Months, Fair Value	$ 5	$ 0
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Fair Value	4,808	4,906
12 Months or More, Unrealized Loss	151	142
Fair Value	4,813	4,906
Unrealized Losses	$ 151	$ 142
Collateralized loan obligations
Available for Sale
Number of Securities | security	3	2
Less than 12 Months, Fair Value	$ 22,817	$ 17,696
Less than 12 Months, Unrealized Losses	234	239
12 Months or More, Fair Value	2,929	0
12 Months or More, Unrealized Loss	14	0
Fair Value	25,746	17,696
Unrealized Losses	$ 248	$ 239
Collateralized mortgage obligations
Available for Sale
Number of Securities | security	22	20
Less than 12 Months, Fair Value	$ 54,982	$ 6,278
Less than 12 Months, Unrealized Losses	718	90
12 Months or More, Fair Value	123,640	127,792
12 Months or More, Unrealized Loss	21,902	21,018
Fair Value	178,622	134,070
Unrealized Losses	$ 22,620	$ 21,108
Corporate debt securities
Available for Sale
Number of Securities | security	130	133
Less than 12 Months, Fair Value	$ 1,929	$ 2,377
Less than 12 Months, Unrealized Losses	30	80
12 Months or More, Fair Value	417,479	429,222
12 Months or More, Unrealized Loss	44,379	47,287
Fair Value	419,408	431,599
Unrealized Losses	$ 44,409	$ 47,367

Debt Securities - Schedule of P

Debt Securities - Schedule of Proceeds and Gross Realized Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Debt Securities [Abstract]
Proceeds from sales of debt securities available for sale	$ 52,323	$ 218,667
Gross realized losses from sales of debt securities available for sale	0	(13,170)
Net realized gain from sales of debt securities available for sale	0	(13,170)
Net gains from call or maturity of debt securities	$ 36	$ 0

Debt Securities - Schedule of I

Debt Securities - Schedule of Investments Classified by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Amortized Cost
Due in one year or less, Amortized Cost	$ 60,692
Due after one year through five years, Amortized Cost	371,630
Due after five years through ten years, Amortized Cost	145,334
Due after ten years, Amortized Cost	26,958
Total maturing securities, Amortized Cost	604,614
Amortized Cost	873,117	$ 873,136
Fair Value
Due in one year or less, estimated fair value	59,887
Due after one year through five years, estimated fair value	342,646
Due after five years through ten years, estimated fair value	125,889
Due after ten years, estimated fair value	23,121
Total maturing securities, fair value	551,543
Debt securities available for sale at fair value	797,230	795,134
Amortized Cost
Due in one year or less, Amortized Cost	2,510
Due after one year through five years, Amortized Cost	150,788
Due after five years through ten years, Amortized Cost	250,580
Due after ten years, Amortized Cost	128,083
Total maturing securities, Amortized Cost	531,961
Held to maturity securities at Amortized Cost	1,064,939	1,075,190
Fair Value
Due in one year or less, estimated fair value	2,484
Due after one year through five years, estimated fair value	137,380
Due after five years through ten years, estimated fair value	214,093
Due after ten years, estimated fair value	106,759
Total maturing securities, fair value	460,716
Held to maturity securities at fair value	875,644	895,263
Mortgage-backed securities
Amortized Cost
Amortized Cost	5,347	5,448
Fair Value
Debt securities available for sale at fair value	5,199	5,311
Amortized Cost
Held to maturity securities at Amortized Cost	73,668	74,904
Fair Value
Held to maturity securities at fair value	60,983	63,269
Collateralized loan obligations
Amortized Cost
Amortized Cost	61,914	50,541
Fair Value
Debt securities available for sale at fair value	61,866	50,437
Amortized Cost
Held to maturity securities at Amortized Cost	0
Fair Value
Held to maturity securities at fair value	0
Collateralized mortgage obligations
Amortized Cost
Amortized Cost	201,242	190,304
Fair Value
Debt securities available for sale at fair value	178,622	169,196
Amortized Cost
Held to maturity securities at Amortized Cost	459,310	467,864
Fair Value
Held to maturity securities at fair value	$ 353,945	$ 365,504

Loans Receivable and the Allo_3

Loans Receivable and the Allowance for Credit Losses - Composition of Loans by Lending Classification (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment, net of unearned income	$ 4,414,646	$ 4,126,947
Allowance for credit losses	(55,900)	(51,500)	$ (49,800)	$ (49,200)
Total loans held for investment, net	4,358,746	4,075,447
Asset Pledged as Collateral without Right | FHLB borrowings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	1,120,000	1,130,000
Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment, net of unearned income	113,029	118,414
Allowance for credit losses	(648)	(613)	(513)	(923)
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment, net of unearned income	1,105,718	1,075,003
Allowance for credit losses	(21,882)	(21,743)	(22,345)	(22,855)
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment, net of unearned income	2,437,829	2,225,310
Allowance for credit losses	(26,772)	(23,759)	(21,833)	(20,123)
Commercial real estate | Construction & development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment, net of unearned income	403,571	323,195
Commercial real estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment, net of unearned income	184,109	184,955
Commercial real estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment, net of unearned income	409,504	383,178
Commercial real estate | Commercial real estate-other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment, net of unearned income	1,440,645	1,333,982
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment, net of unearned income	677,409	640,437
Allowance for credit losses	(5,014)	(4,762)	(4,545)	(4,678)
Residential real estate | One- to four- family first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment, net of unearned income	495,408	459,798
Residential real estate | One- to four- family junior liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment, net of unearned income	182,001	180,639
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment, net of unearned income	80,661	67,783
Allowance for credit losses	$ (1,584)	$ (623)	$ (564)	$ (621)

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	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	$ 4,414,646	$ 4,126,947
90 Days or More Past Due And Accruing	967	468
Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	4,378,937	4,093,155
30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	6,815	7,660
60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,879	4,502
90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	27,015	21,630
Agricultural
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	113,029	118,414
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	112,185	117,852
Agricultural | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	384	338
Agricultural | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	0
Agricultural | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	460	224
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,105,718	1,075,003
90 Days or More Past Due And Accruing	0	0
Commercial and industrial | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,087,725	1,058,301
Commercial and industrial | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	360	440
Commercial and industrial | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	194	401
Commercial and industrial | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	17,439	15,861
Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	2,437,829	2,225,310
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	2,429,878	2,216,829
Commercial real estate | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,900	2,836
Commercial real estate | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	1,642
Commercial real estate | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	6,051	4,003
Commercial real estate | Construction & development
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	403,571	323,195
90 Days or More Past Due And Accruing	0	0
Commercial real estate | Construction & development | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	403,571	323,165
Commercial real estate | Construction & development | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	30
Commercial real estate | Construction & development | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	0
Commercial real estate | Construction & development | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	0
Commercial real estate | Farmland
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	184,109	184,955
90 Days or More Past Due And Accruing	0	0
Commercial real estate | Farmland | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	182,368	182,759
Commercial real estate | Farmland | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	339	677
Commercial real estate | Farmland | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	352
Commercial real estate | Farmland | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,402	1,167
Commercial real estate | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	409,504	383,178
90 Days or More Past Due And Accruing	0	0
Commercial real estate | Multifamily | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	409,504	383,178
Commercial real estate | Multifamily | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	0
Commercial real estate | Multifamily | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	0
Commercial real estate | Multifamily | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	0
Commercial real estate | Commercial real estate-other
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,440,645	1,333,982
90 Days or More Past Due And Accruing	0	0
Commercial real estate | Commercial real estate-other | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,434,435	1,327,727
Commercial real estate | Commercial real estate-other | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,561	2,129
Commercial real estate | Commercial real estate-other | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	0	1,290
Commercial real estate | Commercial real estate-other | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	4,649	2,836
Residential real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	677,409	640,437
90 Days or More Past Due And Accruing	925	468
Residential real estate | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	668,843	632,551
Residential real estate | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	3,929	3,928
Residential real estate | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,614	2,431
Residential real estate | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	3,023	1,527
Residential real estate | One- to four- family first liens
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	495,408	459,798
90 Days or More Past Due And Accruing	925	468
Residential real estate | One- to four- family first liens | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	488,382	453,212
Residential real estate | One- to four- family first liens | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	3,362	3,572
Residential real estate | One- to four- family first liens | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	1,279	1,741
Residential real estate | One- to four- family first liens | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	2,385	1,273
Residential real estate | One- to four- family junior liens
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	182,001	180,639
90 Days or More Past Due And Accruing	0	0
Residential real estate | One- to four- family junior liens | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	180,461	179,339
Residential real estate | One- to four- family junior liens | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	567	356
Residential real estate | One- to four- family junior liens | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	335	690
Residential real estate | One- to four- family junior liens | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	638	254
Consumer
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	80,661	67,783
90 Days or More Past Due And Accruing	42	0
Consumer | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	80,306	67,622
Consumer | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	242	118
Consumer | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	71	28
Consumer | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans held for investment, net of unearned income	$ 42	$ 15

Loans Receivable and the Allo_5

Loans Receivable and the Allowance for Credit Losses - Nonaccrual Status and Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Nonaccrual	$ 28,300		$ 25,891
Nonaccrual with no Allowance for Credit Losses	17,527		15,359
90 Days or More Past Due And Accruing	967		468
Interest Income Recognized on Nonaccrual	129	$ 56
Agricultural
Financing Receivable, Past Due [Line Items]
Nonaccrual	460		235
Nonaccrual with no Allowance for Credit Losses	219		12
90 Days or More Past Due And Accruing	0		0
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual	17,966		17,770
Nonaccrual with no Allowance for Credit Losses	12,455		12,549
90 Days or More Past Due And Accruing	0		0
Commercial real estate
Financing Receivable, Past Due [Line Items]
Nonaccrual	6,464		5,095
Nonaccrual with no Allowance for Credit Losses	3,876		2,343
90 Days or More Past Due And Accruing	0		0
Commercial real estate | Construction & development
Financing Receivable, Past Due [Line Items]
Nonaccrual	0		0
Nonaccrual with no Allowance for Credit Losses	0		0
90 Days or More Past Due And Accruing	0		0
Commercial real estate | Farmland
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,538		1,654
Nonaccrual with no Allowance for Credit Losses	1,390		1,490
90 Days or More Past Due And Accruing	0		0
Commercial real estate | Multifamily
Financing Receivable, Past Due [Line Items]
Nonaccrual	0		0
Nonaccrual with no Allowance for Credit Losses	0		0
90 Days or More Past Due And Accruing	0		0
Commercial real estate | Commercial real estate-other
Financing Receivable, Past Due [Line Items]
Nonaccrual	4,926		3,441
Nonaccrual with no Allowance for Credit Losses	2,486		853
90 Days or More Past Due And Accruing	0		0
Residential real estate
Financing Receivable, Past Due [Line Items]
Nonaccrual	3,372		2,764
Nonaccrual with no Allowance for Credit Losses	977		455
90 Days or More Past Due And Accruing	925		468
Residential real estate | One- to four- family first liens
Financing Receivable, Past Due [Line Items]
Nonaccrual	2,294		1,888
Nonaccrual with no Allowance for Credit Losses	853		455
90 Days or More Past Due And Accruing	925		468
Residential real estate | One- to four- family junior liens
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,078		876
Nonaccrual with no Allowance for Credit Losses	124		0
90 Days or More Past Due And Accruing	0		0
Consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual	38		27
Nonaccrual with no Allowance for Credit Losses	0		0
90 Days or More Past Due And Accruing	$ 42		$ 0

Loans Receivable and the Allo_6

Loans Receivable and the Allowance for Credit Losses - Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
2024	$ 119,486		$ 674,051
2023	707,906		1,048,803
2022	1,094,127		822,694
2021	838,184		591,609
2020	593,349		175,599
Prior	596,831		389,563
Revolving Loans	464,763		424,628
Loans held for investment, net of unearned income	4,414,646		4,126,947
Year-to-date Current Period Gross Write-offs
2024	0		239
2023	276		991
2022	135		254
2021	155		162
2020	29		478
Prior	52		2,428
Revolving Loans	0		0
Total	647	$ 487	4,552
Pass / Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2024	12,132		49,579
2023	52,536		44,238
2022	44,783		28,775
2021	26,909		11,713
2020	11,152		4,041
Prior	17,771		15,217
Revolving Loans	96,262		93,955
Loans held for investment, net of unearned income	261,545		247,518
Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	16		214
2022	427		0
2021	0		25
2020	23		26
Prior	651		639
Revolving Loans	0		0
Loans held for investment, net of unearned income	1,117		904
Agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
2024	7,515		12,834
2023	10,267		12,892
2022	13,134		9,324
2021	8,076		3,051
2020	2,738		694
Prior	2,549		1,885
Revolving Loans	68,750		77,734
Loans held for investment, net of unearned income	113,029		118,414
Year-to-date Current Period Gross Write-offs
2024	0		0
2023	0		8
2022	0		1
2021	4		17
2020	0		2
Prior	0		0
Revolving Loans	0		0
Total	4	1	28
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2024	27,640		179,459
2023	176,884		228,261
2022	219,384		198,230
2021	192,227		121,272
2020	115,485		34,255
Prior	175,267		146,365
Revolving Loans	198,831		167,161
Loans held for investment, net of unearned income	1,105,718		1,075,003
Year-to-date Current Period Gross Write-offs
2024	0		239
2023	0		343
2022	128		223
2021	129		133
2020	29		464
Prior	13		45
Revolving Loans	0		0
Total	299	320	1,447
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment, net of unearned income	2,437,829		2,225,310
Year-to-date Current Period Gross Write-offs
Total	35	18
Commercial real estate | Construction & development
Financing Receivable, Credit Quality Indicator [Line Items]
2024	30,692		101,243
2023	124,269		163,366
2022	179,864		43,653
2021	50,350		3,393
2020	3,346		821
Prior	2,451		700
Revolving Loans	12,599		10,019
Loans held for investment, net of unearned income	403,571		323,195
Year-to-date Current Period Gross Write-offs
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans	0		0
Total	0		0
Commercial real estate | Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
2024	6,592		28,725
2023	26,455		52,015
2022	50,221		51,019
2021	48,944		25,897
2020	25,439		7,513
Prior	23,169		17,839
Revolving Loans	3,289		1,947
Loans held for investment, net of unearned income	184,109		184,955
Year-to-date Current Period Gross Write-offs
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans	0		0
Total	0		0
Commercial real estate | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
2024	5,774		37,395
2023	42,595		98,206
2022	98,956		118,881
2021	122,068		96,843
2020	100,053		16,551
Prior	34,706		11,094
Revolving Loans	5,352		4,208
Loans held for investment, net of unearned income	409,504		383,178
Year-to-date Current Period Gross Write-offs
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans	0		0
Total	0		0
Commercial real estate | Commercial real estate-other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	11,608		200,387
2023	211,150		322,927
2022	349,444		279,271
2021	293,095		274,602
2020	280,467		90,033
Prior	231,908		110,441
Revolving Loans	62,973		56,321
Loans held for investment, net of unearned income	1,440,645		1,333,982
Year-to-date Current Period Gross Write-offs
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	35		2,337
Revolving Loans	0		0
Total	35		2,337
Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment, net of unearned income	677,409		640,437
Year-to-date Current Period Gross Write-offs
Total	19	0
Residential real estate | One- to four- family first liens
Financing Receivable, Credit Quality Indicator [Line Items]
2024	17,533		64,429
2023	63,734		126,684
2022	137,914		93,541
2021	96,515		54,813
2020	54,646		21,665
Prior	108,359		85,383
Revolving Loans	16,707		13,283
Loans held for investment, net of unearned income	495,408		459,798
Year-to-date Current Period Gross Write-offs
2024	0		0
2023	0		0
2022	0		0
2021	19		0
2020	0		0
Prior	0		36
Revolving Loans	0		0
Total	19		36
Residential real estate | One- to four- family first liens | Pass / Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2024			1,156
2023			191
2022			738
2021			165
2020			164
Prior			3,404
Revolving Loans			0
Loans held for investment, net of unearned income			5,818
Residential real estate | One- to four- family first liens | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2024			0
2023			0
2022			0
2021			0
2020			0
Prior			0
Revolving Loans			0
Loans held for investment, net of unearned income			0
Residential real estate | One- to four- family junior liens
Financing Receivable, Credit Quality Indicator [Line Items]
2024	4,210		23,551
2023	21,539		30,111
2022	29,079		18,733
2021	17,968		7,317
2020	7,277		2,613
Prior	10,431		8,504
Revolving Loans	91,497		89,810
Loans held for investment, net of unearned income	182,001		180,639
Year-to-date Current Period Gross Write-offs
2024	0		0
2023	0		19
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans	0		0
Total	0		19
Residential real estate | One- to four- family junior liens | Pass / Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2024	4,210		23,551
2023	21,539		29,919
2022	28,673		18,733
2021	17,968		7,292
2020	7,254		2,590
Prior	9,781		7,867
Revolving Loans	91,497		89,810
Loans held for investment, net of unearned income	180,922		179,762
Residential real estate | One- to four- family junior liens | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		192
2022	406		0
2021	0		25
2020	23		23
Prior	650		637
Revolving Loans	0		0
Loans held for investment, net of unearned income	1,079		877
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2024	7,922		26,028
2023	31,013		14,341
2022	16,131		10,042
2021	8,941		4,421
2020	3,898		1,454
Prior	7,991		7,352
Revolving Loans	4,765		4,145
Loans held for investment, net of unearned income	80,661		67,783
Year-to-date Current Period Gross Write-offs
2024	0		0
2023	276		621
2022	7		30
2021	3		12
2020			12
Prior	4		10
Revolving Loans	0		0
Total	290	$ 148	685
Consumer | Pass / Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2024	7,922		26,028
2023	30,997		14,319
2022	16,110		10,042
2021	8,941		4,421
2020	3,898		1,451
Prior	7,990		7,350
Revolving Loans	4,765		4,145
Loans held for investment, net of unearned income	80,623		67,756
Consumer | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	16		22
2022	21		0
2021	0		0
2020	0		3
Prior	1		2
Revolving Loans	0		0
Loans held for investment, net of unearned income	38		27
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2024	99,231		607,768
2023	639,728		962,918
2022	986,736		752,137
2021	772,020		524,570
2020	517,051		139,536
Prior	483,849		311,683
Revolving Loans	337,942		299,882
Loans held for investment, net of unearned income	3,836,557		3,598,494
Pass | Agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
2024	7,515		11,859
2023	9,909		12,149
2022	12,420		8,352
2021	7,156		2,752
2020	2,399		689
Prior	1,847		1,139
Revolving Loans	66,311		71,680
Loans held for investment, net of unearned income	107,557		108,620
Pass | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2024	27,582		176,021
2023	173,057		224,924
2022	200,277		193,011
2021	188,288		117,326
2020	112,151		25,555
Prior	135,262		116,661
Revolving Loans	175,914		147,690
Loans held for investment, net of unearned income	1,012,531		1,001,188
Pass | Commercial real estate | Construction & development
Financing Receivable, Credit Quality Indicator [Line Items]
2024	30,069		99,803
2023	123,679		163,126
2022	179,633		43,189
2021	49,896		3,393
2020	3,346		821
Prior	2,451		700
Revolving Loans	12,132		9,552
Loans held for investment, net of unearned income	401,206		320,584
Pass | Commercial real estate | Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
2024	6,592		25,666
2023	26,072		44,907
2022	43,144		47,068
2021	45,254		18,863
2020	18,449		6,587
Prior	19,303		14,845
Revolving Loans	2,540		1,642
Loans held for investment, net of unearned income	161,354		159,578
Pass | Commercial real estate | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
2024	456		32,077
2023	42,595		96,969
2022	97,726		111,032
2021	114,264		77,532
2020	69,748		8,701
Prior	22,308		6,508
Revolving Loans	5,352		4,208
Loans held for investment, net of unearned income	352,449		337,027
Pass | Commercial real estate | Commercial real estate-other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	9,484		199,698
2023	202,773		295,066
2022	316,522		256,718
2021	271,467		250,676
2020	257,023		77,509
Prior	200,086		90,170
Revolving Loans	58,986		51,827
Loans held for investment, net of unearned income	1,316,341		1,221,664
Pass | Residential real estate | One- to four- family first liens | Pass / Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2024	17,533		62,644
2023	61,643		125,777
2022	137,014		92,767
2021	95,695		54,028
2020	53,935		19,674
Prior	102,592		81,660
Revolving Loans	16,707		13,283
Loans held for investment, net of unearned income	485,119		449,833
Special mention / watch
Financing Receivable, Credit Quality Indicator [Line Items]
2024	6,453		11,444
2023	12,293		11,123
2022	33,648		10,365
2021	7,893		33,885
2020	44,138		14,157
Prior	25,542		9,059
Revolving Loans	22,637		22,996
Loans held for investment, net of unearned income	152,604		113,029
Special mention / watch | Agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		266
2023	319		550
2022	452		670
2021	635		91
2020	124		5
Prior	488		522
Revolving Loans	1,643		3,705
Loans held for investment, net of unearned income	3,661		5,809
Special mention / watch | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2024	58		2,541
2023	2,896		416
2022	17,886		3,209
2021	865		3,385
2020	3,198		193
Prior	2,533		272
Revolving Loans	15,821		14,692
Loans held for investment, net of unearned income	43,257		24,708
Special mention / watch | Commercial real estate | Construction & development
Financing Receivable, Credit Quality Indicator [Line Items]
2024	623		1,097
2023	263		0
2022	0		464
2021	454		0
2020	0		0
Prior	0		0
Revolving Loans	467		467
Loans held for investment, net of unearned income	1,807		2,028
Special mention / watch | Commercial real estate | Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		1,229
2023	0		6,898
2022	6,695		2,409
2021	2,405		5,982
2020	5,804		0
Prior	1,070		965
Revolving Loans	719		276
Loans held for investment, net of unearned income	16,693		17,759
Special mention / watch | Commercial real estate | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
2024	5,318		5,318
2023	0		1,237
2022	1,230		277
2021	272		18,984
2020	29,979		7,850
Prior	12,384		4,586
Revolving Loans	0		0
Loans held for investment, net of unearned income	49,183		38,252
Special mention / watch | Commercial real estate | Commercial real estate-other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	454		364
2023	8,093		1,306
2022	6,675		3,300
2021	3,227		4,823
2020	4,426		4,282
Prior	7,295		2,395
Revolving Loans	3,987		3,856
Loans held for investment, net of unearned income	34,157		20,326
Special mention / watch | Residential real estate | One- to four- family first liens
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		629
2023	722		716
2022	710		36
2021	35		620
2020	607		1,827
Prior	1,772		319
Revolving Loans	0		0
Loans held for investment, net of unearned income	3,846		4,147
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,670		5,260
2023	3,333		30,310
2022	28,533		31,417
2021	31,362		21,416
2020	20,985		17,839
Prior	69,018		52,965
Revolving Loans	7,922		7,795
Loans held for investment, net of unearned income	162,823		167,002
Substandard | Agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		709
2023	39		193
2022	262		302
2021	285		208
2020	215		0
Prior	214		224
Revolving Loans	796		2,349
Loans held for investment, net of unearned income	1,811		3,985
Substandard | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		897
2023	931		2,921
2022	1,221		2,010
2021	3,074		561
2020	136		8,507
Prior	37,472		29,432
Revolving Loans	7,096		4,779
Loans held for investment, net of unearned income	49,930		49,107
Substandard | Commercial real estate | Construction & development
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		343
2023	327		240
2022	231		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans	0		0
Loans held for investment, net of unearned income	558		583
Substandard | Commercial real estate | Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		1,830
2023	383		210
2022	382		1,542
2021	1,285		1,052
2020	1,186		926
Prior	2,796		2,029
Revolving Loans	30		29
Loans held for investment, net of unearned income	6,062		7,618
Substandard | Commercial real estate | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	0		7,572
2021	7,532		327
2020	326		0
Prior	14		0
Revolving Loans	0		0
Loans held for investment, net of unearned income	7,872		7,899
Substandard | Commercial real estate | Commercial real estate-other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,670		325
2023	284		26,555
2022	26,247		19,253
2021	18,401		19,103
2020	19,018		8,242
Prior	24,527		17,876
Revolving Loans	0		638
Loans held for investment, net of unearned income	90,147		91,992
Substandard | Residential real estate | One- to four- family first liens
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	1,369
2022	190
2021	785
2020	104
Prior	3,995
Revolving Loans	0
Loans held for investment, net of unearned income	6,443
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans	0		0
Loans held for investment, net of unearned income	0		0
Doubtful | Agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans	0		0
Loans held for investment, net of unearned income	0		0
Doubtful | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans	0		0
Loans held for investment, net of unearned income	0		0
Doubtful | Commercial real estate | Construction & development
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans	0		0
Loans held for investment, net of unearned income	0		0
Doubtful | Commercial real estate | Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans	0		0
Loans held for investment, net of unearned income	0		0
Doubtful | Commercial real estate | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans	0		0
Loans held for investment, net of unearned income	0		0
Doubtful | Commercial real estate | Commercial real estate-other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans	0		0
Loans held for investment, net of unearned income	0		$ 0
Doubtful | Residential real estate | One- to four- family first liens
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0
2022	0
2021	0
2020	0
Prior	0
Revolving Loans	0
Loans held for investment, net of unearned income	$ 0

Loans Receivable and the Allo_7

Loans Receivable and the Allowance for Credit Losses - Activity in Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Net charge-offs	$ (200)	$ (300)
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	51,500	49,200	$ 49,200
Charge-offs	(647)	(487)	(4,552)
Recoveries	458	154
Credit loss expense (benefit)	4,589	933
Ending balance	55,900	49,800	51,500
Credit loss expense, off balance sheet credit exposure	100	0
DNVB
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Credit loss expense (benefit)	3,100		3,100
Loans receivable
Financing Receivable, Allowance for Credit Loss [Line Items]
Accrued interest receivable	20,600		19,700
Agricultural
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	613	923	923
Charge-offs	(4)	(1)	(28)
Recoveries	355	26
Credit loss expense (benefit)	(316)	(435)
Ending balance	648	513	613
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	21,743	22,855	22,855
Charge-offs	(299)	(320)	(1,447)
Recoveries	46	75
Credit loss expense (benefit)	392	(265)
Ending balance	21,882	22,345	21,743
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	23,759	20,123	20,123
Charge-offs	(35)	(18)
Recoveries	8	5
Credit loss expense (benefit)	3,040	1,723
Ending balance	26,772	21,833	23,759
Residential real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	4,762	4,678	4,678
Charge-offs	(19)	0
Recoveries	9	4
Credit loss expense (benefit)	262	(137)
Ending balance	5,014	4,545	4,762
Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	623	621	621
Charge-offs	(290)	(148)	(685)
Recoveries	40	44
Credit loss expense (benefit)	1,211	47
Ending balance	$ 1,584	$ 564	$ 623

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	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Line Items]
Individually evaluated for impairment	$ 27,199	$ 29,157
Collectively evaluated for impairment	4,387,447	4,097,790
Loans held for investment, net of unearned income	4,414,646	4,126,947
Allowance for credit losses:
Individually evaluated for impairment	2,969	3,337
Collectively evaluated for impairment	52,931	48,163
Total	55,900	51,500	$ 49,800	$ 49,200
Agricultural
Loans and Leases Receivable Disclosure [Line Items]
Individually evaluated for impairment	219	11
Collectively evaluated for impairment	112,810	118,403
Loans held for investment, net of unearned income	113,029	118,414
Allowance for credit losses:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	648	613
Total	648	613	513	923
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Individually evaluated for impairment	16,911	17,231
Collectively evaluated for impairment	1,088,807	1,057,772
Loans held for investment, net of unearned income	1,105,718	1,075,003
Allowance for credit losses:
Individually evaluated for impairment	2,804	2,616
Collectively evaluated for impairment	19,078	19,127
Total	21,882	21,743	22,345	22,855
Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Individually evaluated for impairment	8,433	10,932
Collectively evaluated for impairment	2,429,396	2,214,378
Loans held for investment, net of unearned income	2,437,829	2,225,310
Allowance for credit losses:
Individually evaluated for impairment	47	705
Collectively evaluated for impairment	26,725	23,054
Total	26,772	23,759	21,833	20,123
Residential real estate
Loans and Leases Receivable Disclosure [Line Items]
Individually evaluated for impairment	1,636	983
Collectively evaluated for impairment	675,773	639,454
Loans held for investment, net of unearned income	677,409	640,437
Allowance for credit losses:
Individually evaluated for impairment	118	16
Collectively evaluated for impairment	4,896	4,746
Total	5,014	4,762	4,545	4,678
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	80,661	67,783
Loans held for investment, net of unearned income	80,661	67,783
Allowance for credit losses:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,584	623
Total	$ 1,584	$ 623	$ 564	$ 621

Loans Receivable and the Allo_9

Loans Receivable and the Allowance for Credit Losses - Primary Type of Collateral (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	$ 4,358,746	$ 4,075,447
ACL Allocation	55,900	51,500	$ 49,800	$ 49,200
Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	25,713	27,236
Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	1,486	1,921
Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	27,199	29,157
ACL Allocation	2,969	3,337
Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	648	613	513	923
Agricultural | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	11	11
Agricultural | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Agricultural | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	208	0
Agricultural | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	219	11
ACL Allocation	0	0
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	21,882	21,743	22,345	22,855
Commercial and industrial | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	16,911	15,991
Commercial and industrial | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Commercial and industrial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	1,240
Commercial and industrial | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	16,911	17,231
ACL Allocation	2,804	2,616
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	26,772	23,759	21,833	20,123
Commercial real estate | Construction and development | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Commercial real estate | Construction and development | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Commercial real estate | Construction and development | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Commercial real estate | Construction and development | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
ACL Allocation	0	0
Commercial real estate | Farmland | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	2,334	5,403
Commercial real estate | Farmland | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Commercial real estate | Farmland | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	1,278	0
Commercial real estate | Farmland | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	3,612	5,403
ACL Allocation	0	0
Commercial real estate | Multifamily | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Commercial real estate | Multifamily | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Commercial real estate | Multifamily | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Commercial real estate | Multifamily | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
ACL Allocation	0	0
Commercial real estate | Commercial real estate-other | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	4,821	5,350
Commercial real estate | Commercial real estate-other | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Commercial real estate | Commercial real estate-other | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	179
Commercial real estate | Commercial real estate-other | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	4,821	5,529
ACL Allocation	47	705
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	5,014	4,762	4,545	4,678
Residential real estate | One- to four- family first liens | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	853	481
Residential real estate | One- to four- family first liens | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Residential real estate | One- to four- family first liens | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Residential real estate | One- to four- family first liens | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	853	481
ACL Allocation	0	0
Residential real estate | One- to four- family junior liens | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	783	0
Residential real estate | One- to four- family junior liens | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Residential real estate | One- to four- family junior liens | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	502
Residential real estate | One- to four- family junior liens | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	783	502
ACL Allocation	118	16
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	1,584	623	$ 564	$ 621
Consumer | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Consumer | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Consumer | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
Consumer | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment, net	0	0
ACL Allocation	$ 0	$ 0

Loans Receivable and the All_10

Loans Receivable and the Allowance for Credit Losses - Trouble Debt (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) modified_loan	Mar. 31, 2023 USD ($)
Financing Receivable, Modified [Line Items]
Principal Receivable	$ 0	$ 81
Total Class of Financing Receivable
Number of modified loans | modified_loan	9
Financing receivable, loans totaling	$ 1,400
Agricultural
Financing Receivable, Modified [Line Items]
Principal Receivable		$ 0
Total Class of Financing Receivable		1.42%
Commercial and industrial
Financing Receivable, Modified [Line Items]
Principal Receivable	$ 0	$ 63
Total Class of Financing Receivable	0.03%	0.04%
CRE - Other | Commercial real estate-other
Financing Receivable, Modified [Line Items]
Principal Receivable	$ 0	$ 18
Total Class of Financing Receivable	0.01%	0%
Residential real estate | One- to four- family first liens
Financing Receivable, Modified [Line Items]
Total Class of Financing Receivable	0.05%
Residential real estate | One- to four- family junior liens
Financing Receivable, Modified [Line Items]
Principal Receivable	$ 0
Total Class of Financing Receivable	0.07%
Principal Forgiveness
Financing Receivable, Modified [Line Items]
Principal Receivable	$ 0	$ 0
Principal Forgiveness | Agricultural
Financing Receivable, Modified [Line Items]
Principal Receivable		0
Principal Forgiveness | Commercial and industrial
Financing Receivable, Modified [Line Items]
Principal Receivable	0	0
Principal Forgiveness | CRE - Other | Commercial real estate-other
Financing Receivable, Modified [Line Items]
Principal Receivable	0	0
Principal Forgiveness | Residential real estate | One- to four- family first liens
Financing Receivable, Modified [Line Items]
Principal Receivable	0
Principal Forgiveness | Residential real estate | One- to four- family junior liens
Financing Receivable, Modified [Line Items]
Principal Receivable	0
Payment Delay
Financing Receivable, Modified [Line Items]
Principal Receivable	253	16
Payment Delay | Agricultural
Financing Receivable, Modified [Line Items]
Principal Receivable		16
Payment Delay | Commercial and industrial
Financing Receivable, Modified [Line Items]
Principal Receivable	0	0
Payment Delay | CRE - Other | Commercial real estate-other
Financing Receivable, Modified [Line Items]
Principal Receivable	0	0
Payment Delay | Residential real estate | One- to four- family first liens
Financing Receivable, Modified [Line Items]
Principal Receivable	253
Payment Delay | Residential real estate | One- to four- family junior liens
Financing Receivable, Modified [Line Items]
Principal Receivable	0
Term Extension
Financing Receivable, Modified [Line Items]
Principal Receivable	688	1,552
Term Extension | Agricultural
Financing Receivable, Modified [Line Items]
Principal Receivable		1,502
Term Extension | Commercial and industrial
Financing Receivable, Modified [Line Items]
Principal Receivable	350	50
Term Extension | CRE - Other | Commercial real estate-other
Financing Receivable, Modified [Line Items]
Principal Receivable	202	0
Term Extension | Residential real estate | One- to four- family first liens
Financing Receivable, Modified [Line Items]
Principal Receivable	0
Term Extension | Residential real estate | One- to four- family junior liens
Financing Receivable, Modified [Line Items]
Principal Receivable	136
Interest Rate Reduction
Financing Receivable, Modified [Line Items]
Principal Receivable	0	0
Interest Rate Reduction | Agricultural
Financing Receivable, Modified [Line Items]
Principal Receivable		0
Interest Rate Reduction | Commercial and industrial
Financing Receivable, Modified [Line Items]
Principal Receivable	0	0
Interest Rate Reduction | CRE - Other | Commercial real estate-other
Financing Receivable, Modified [Line Items]
Principal Receivable	0	0
Interest Rate Reduction | Residential real estate | One- to four- family first liens
Financing Receivable, Modified [Line Items]
Principal Receivable	0
Interest Rate Reduction | Residential real estate | One- to four- family junior liens
Financing Receivable, Modified [Line Items]
Principal Receivable	0
Term Extension & Interest Rate Reduction
Financing Receivable, Modified [Line Items]
Principal Receivable	0	120
Term Extension & Interest Rate Reduction | Agricultural
Financing Receivable, Modified [Line Items]
Principal Receivable		0
Term Extension & Interest Rate Reduction | Commercial and industrial
Financing Receivable, Modified [Line Items]
Principal Receivable	0	120
Term Extension & Interest Rate Reduction | CRE - Other | Commercial real estate-other
Financing Receivable, Modified [Line Items]
Principal Receivable	0	0
Term Extension & Interest Rate Reduction | Residential real estate | One- to four- family first liens
Financing Receivable, Modified [Line Items]
Principal Receivable	0
Term Extension & Interest Rate Reduction | Residential real estate | One- to four- family junior liens
Financing Receivable, Modified [Line Items]
Principal Receivable	0
Principal Forgiveness & Term Extension
Financing Receivable, Modified [Line Items]
Principal Receivable	0	307
Principal Forgiveness & Term Extension | Agricultural
Financing Receivable, Modified [Line Items]
Principal Receivable		0
Principal Forgiveness & Term Extension | Commercial and industrial
Financing Receivable, Modified [Line Items]
Principal Receivable	0	307
Principal Forgiveness & Term Extension | CRE - Other | Commercial real estate-other
Financing Receivable, Modified [Line Items]
Principal Receivable	0	0
Principal Forgiveness & Term Extension | Residential real estate | One- to four- family first liens
Financing Receivable, Modified [Line Items]
Principal Receivable	0
Principal Forgiveness & Term Extension | Residential real estate | One- to four- family junior liens
Financing Receivable, Modified [Line Items]
Principal Receivable	0
Principal Forgiveness, Term Extension, & Interest Rate Reduction
Financing Receivable, Modified [Line Items]
Principal Receivable	0	20
Principal Forgiveness, Term Extension, & Interest Rate Reduction | Agricultural
Financing Receivable, Modified [Line Items]
Principal Receivable		0
Principal Forgiveness, Term Extension, & Interest Rate Reduction | Commercial and industrial
Financing Receivable, Modified [Line Items]
Principal Receivable	0	0
Principal Forgiveness, Term Extension, & Interest Rate Reduction | CRE - Other | Commercial real estate-other
Financing Receivable, Modified [Line Items]
Principal Receivable	0	20
Principal Forgiveness, Term Extension, & Interest Rate Reduction | Residential real estate | One- to four- family first liens
Financing Receivable, Modified [Line Items]
Principal Receivable	0
Principal Forgiveness, Term Extension, & Interest Rate Reduction | Residential real estate | One- to four- family junior liens
Financing Receivable, Modified [Line Items]
Principal Receivable	0
Payment Delay & Term Extension
Financing Receivable, Modified [Line Items]
Principal Receivable	0	0
Payment Delay & Term Extension | Agricultural
Financing Receivable, Modified [Line Items]
Principal Receivable		0
Payment Delay & Term Extension | Commercial and industrial
Financing Receivable, Modified [Line Items]
Principal Receivable	0	0
Payment Delay & Term Extension | CRE - Other | Commercial real estate-other
Financing Receivable, Modified [Line Items]
Principal Receivable	0	$ 0
Payment Delay & Term Extension | Residential real estate | One- to four- family first liens
Financing Receivable, Modified [Line Items]
Principal Receivable	0
Payment Delay & Term Extension | Residential real estate | One- to four- family junior liens
Financing Receivable, Modified [Line Items]
Principal Receivable	$ 0

Loans Receivable and the All_11

Loans Receivable and the Allowance for Credit Losses - Aging Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	$ 12,507	$ 2,015
Agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months		1,518
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	5,099	477
Commercial real estate | Construction & development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	559
Commercial real estate | Farmland
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	381
Commercial real estate | Commercial real estate-other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	6,066	20
RRE - One- to four- family first liens | One- to four- family first liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	253
Residential real estate | One- to four- family junior liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	149
Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	11,084	1,995
Current | Agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months		1,518
Current | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	4,028	477
Current | Commercial real estate | Construction & development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	559
Current | Commercial real estate | Farmland
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	29
Current | Commercial real estate | Commercial real estate-other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	6,066	0
Current | RRE - One- to four- family first liens | One- to four- family first liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	253
Current | Residential real estate | One- to four- family junior liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	149
30 - 59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	76	0
30 - 59 Days Past Due | Agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months		0
30 - 59 Days Past Due | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	76	0
30 - 59 Days Past Due | Commercial real estate | Construction & development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0
30 - 59 Days Past Due | Commercial real estate | Farmland
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0
30 - 59 Days Past Due | Commercial real estate | Commercial real estate-other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0	0
30 - 59 Days Past Due | RRE - One- to four- family first liens | One- to four- family first liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0
30 - 59 Days Past Due | Residential real estate | One- to four- family junior liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0
60 - 89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0	0
60 - 89 Days Past Due | Agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months		0
60 - 89 Days Past Due | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0	0
60 - 89 Days Past Due | Commercial real estate | Construction & development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0
60 - 89 Days Past Due | Commercial real estate | Farmland
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0
60 - 89 Days Past Due | Commercial real estate | Commercial real estate-other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0	0
60 - 89 Days Past Due | RRE - One- to four- family first liens | One- to four- family first liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0
60 - 89 Days Past Due | Residential real estate | One- to four- family junior liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0
90 Days or More Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	1,347	20
90 Days or More Past Due | Agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months		0
90 Days or More Past Due | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	995	0
90 Days or More Past Due | Commercial real estate | Construction & development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0
90 Days or More Past Due | Commercial real estate | Farmland
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	352
90 Days or More Past Due | Commercial real estate | Commercial real estate-other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0	$ 20
90 Days or More Past Due | RRE - One- to four- family first liens | One- to four- family first liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	0
90 Days or More Past Due | Residential real estate | One- to four- family junior liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performance of loans modified in last twelve months	$ 0

Loans Receivable and the All_12

Loans Receivable and the Allowance for Credit Losses - Financial Effect of Loan Modification (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Principal Forgiveness	$ 0	$ 81
Weighted Average Interest Rate Reduction	0%	2.07%
Weighted Average Term Extension (Months)	27 years 10 months 24 days	4 years 7 months 20 days
Agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Principal Forgiveness		$ 0
Weighted Average Interest Rate Reduction		0%
Weighted Average Term Extension (Months)		2 years 4 months 13 days
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Principal Forgiveness	$ 0	$ 63
Weighted Average Interest Rate Reduction	0%	1.25%
Weighted Average Term Extension (Months)	4 years 4 months 24 days	11 years 10 months 20 days
CRE - Other | Commercial real estate-other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Principal Forgiveness	$ 0	$ 18
Weighted Average Interest Rate Reduction	0%	7%
Weighted Average Term Extension (Months)	5 years 4 months 24 days	2 years 5 months 19 days
Residential real estate | One- to four- family junior liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
Principal Forgiveness	$ 0
Weighted Average Interest Rate Reduction	0%
Weighted Average Term Extension (Months)	122 years

Derivatives, Hedging Activiti_3

Derivatives, Hedging Activities and Balance Sheet Offsetting - Derivatives and Hedging Activities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	$ 27,844	$ 25,093
Derivative liabilities, fair value	23,141	24,057
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, notional amount	400,425	391,101
Derivative assets, fair value	5,333	3,011
Derivative liabilities, fair value	691	1,987
Designated as Hedging Instrument | Interest rate swaps - loans
Derivatives, Fair Value [Line Items]
Derivative, notional amount	50,425	41,101
Derivative assets, fair value	2,529	2,071
Derivative liabilities, fair value	601	902
Designated as Hedging Instrument | Interest rate swaps - securities
Derivatives, Fair Value [Line Items]
Derivative, notional amount	150,000	150,000
Derivative assets, fair value	144	0
Derivative liabilities, fair value	90	821
Designated as Hedging Instrument | Interest rate swaps | Cash flow hedges
Derivatives, Fair Value [Line Items]
Derivative, notional amount	200,000	200,000
Derivative assets, fair value	2,660	940
Derivative liabilities, fair value	0	264
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, notional amount	592,394	486,107
Derivative assets, fair value	22,511	22,082
Derivative liabilities, fair value	22,450	22,070
Not Designated as Hedging Instrument | Interest rate swaps
Derivatives, Fair Value [Line Items]
Derivative, notional amount	522,777	432,648
Derivative assets, fair value	22,429	22,028
Derivative liabilities, fair value	22,438	22,038
Not Designated as Hedging Instrument | RPAs - protection purchased | RPAs - protection sold
Derivatives, Fair Value [Line Items]
Derivative, notional amount	31,175	18,778
Derivative assets, fair value	5	4
Derivative liabilities, fair value	0	0
Not Designated as Hedging Instrument | RPAs - protection purchased | RPAs - protection purchased
Derivatives, Fair Value [Line Items]
Derivative, notional amount	31,089	31,145
Derivative assets, fair value	0	0
Derivative liabilities, fair value	4	9
Not Designated as Hedging Instrument | Interest rate lock commitments
Derivatives, Fair Value [Line Items]
Derivative, notional amount	3,623	1,461
Derivative assets, fair value	77	50
Derivative liabilities, fair value	0	0
Not Designated as Hedging Instrument | Interest rate forward loan sales contracts
Derivatives, Fair Value [Line Items]
Derivative, notional amount	3,730	2,075
Derivative assets, fair value	0	0
Derivative liabilities, fair value	$ 8	$ 23

Derivatives, Hedging Activiti_4

Derivatives, Hedging Activities and Balance Sheet Offsetting - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative instrument, estimated gain reclassified from AOCI into income	$ 2,200
Fair value of derivatives in a net liability position, including accrued interest	$ 4,500

Derivatives, Hedging Activiti_5

Derivatives, Hedging Activities and Balance Sheet Offsetting - Effect of Cashflow Hedging on AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Unrealized net gains in cash flow hedging instruments	$ 2,772	$ 138
Location of Gain (Loss) Reclassified from AOCI into Income	788	0
Interest rate swaps | Cash flow hedges | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Unrealized net gains in cash flow hedging instruments	2,772	138
Interest rate swaps | Cash flow hedges | Designated as Hedging Instrument | Interest Expense
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Location of Gain (Loss) Reclassified from AOCI into Income	$ 788	$ 0

Derivatives, Hedging Activiti_6

Derivatives, Hedging Activities and Balance Sheet Offsetting - Schedule of Impacts on Statements (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Interest Income	$ 34,731	$ 40,076
Designated as Hedging Instrument | Interest rate swaps | Fair value hedges:
Derivative Instruments, Gain (Loss) [Line Items]
Interest Income	408	159
Other Income	0	0
Designated as Hedging Instrument | Interest rate swaps | Interest Income | Fair value hedges: | Interest contracts - loans:
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	(764)	562
Derivative designated as hedging instruments	1,023	(402)
Designated as Hedging Instrument | Interest rate swaps | Interest Income | Fair value hedges: | Interest contracts - securities:
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	(882)	0
Derivative designated as hedging instruments	1,059	0
Designated as Hedging Instrument | Interest rate swaps | Other income | Fair value hedges: | Interest contracts - loans:
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	0	0
Derivative designated as hedging instruments	0	0
Designated as Hedging Instrument | Interest rate swaps | Other income | Fair value hedges: | Interest contracts - securities:
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	0	0
Derivative designated as hedging instruments	$ 0	$ 0

Derivatives, Hedging Activiti_7

Derivatives, Hedging Activities and Balance Sheet Offsetting - Hedged Items in Fair Value Hedging Relationship (Details) - Interest rate swaps - Designated as Hedging Instrument - Fair value hedges: $ in Thousands	Mar. 31, 2024 USD ($)
Loans
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of the Hedged Assets	$ 48,539
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset	(1,926)
Securities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of the Hedged Assets	149,937
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset	$ (63)

Derivatives, Hedging Activiti_8

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	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)	$ 46	$ 133
Interest rate swaps | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)	0	0
RPAs - protection purchased | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)	5	69
Interest rate lock commitments | Loan revenue
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)	27	94
Interest rate forward loan sales contracts | Loan revenue
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)	$ 14	$ (30)

Derivatives, Hedging Activiti_9

Derivatives, Hedging Activities and Balance Sheet Offsetting - Offsetting Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Asset Derivatives
Gross Amounts Recognized	$ 27,844	$ 25,093
Gross Amounts Offset in the Balance Sheet	0	0
Net Amounts presented in the Balance Sheet	27,844	25,093
Financial Instruments	0	0
Cash Collateral Received / Paid	17,998	15,549
Net Assets /Liabilities	9,846	9,544
Liability Derivatives
Gross Amounts Recognized	23,141	24,057
Gross Amounts Offset in the Balance Sheet	0	0
Net Amounts presented in the Balance Sheet	23,141	24,057
Financial Instruments	0	0
Cash Collateral Received / Paid	2,730	2,420
Net Assets /Liabilities	$ 20,411	$ 21,637

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Goodwill and Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Jan. 31, 2024	Mar. 31, 2023
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 62,477	$ 62,477
Goodwill from the acquisition of DNVB	8,641	0
Total goodwill, end of period	71,118	$ 62,477
Core deposit intangible
Goodwill [Roll Forward]
Amortized over its estimated useful life			10 years
DNVB
Goodwill [Roll Forward]
Total goodwill, end of period	8,641
Core deposit intangible	$ 7,100		$ 7,100	$ 0

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 73,310	$ 66,210
Accumulated Amortization	(50,819)	(49,181)
Net Carrying Amount	22,491	17,029
Indefinite-lived trade name intangible	7,040	7,040
Other intangible assets, net	29,531	24,069
Core deposit intangible
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	65,345	58,245
Accumulated Amortization	(43,044)	(41,499)
Net Carrying Amount	22,301	16,746
Customer relationship intangible
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,265	5,265
Accumulated Amortization	(5,092)	(5,008)
Net Carrying Amount	173	257
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,700	2,700
Accumulated Amortization	(2,683)	(2,674)
Net Carrying Amount	$ 17	$ 26

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Schedule of Future Amortization Expense (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
2024	$ 4,514
2025	4,944
2026	3,840
2027	2,757
2028	2,110
Thereafter	4,326
Net Carrying Amount	22,491	$ 17,029
Core deposit intangible
Finite-Lived Intangible Assets [Line Items]
2024	4,344
2025	4,924
2026	3,840
2027	2,757
2028	2,110
Thereafter	4,326
Net Carrying Amount	22,301	16,746
Customer relationship intangible
Finite-Lived Intangible Assets [Line Items]
2024	155
2025	18
2026	0
2027	0
2028	0
Thereafter	0
Net Carrying Amount	173	257
Other
Finite-Lived Intangible Assets [Line Items]
2024	15
2025	2
2026	0
2027	0
2028	0
Thereafter	0
Net Carrying Amount	$ 17	$ 26

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Other Assets [Abstract]
Bank-owned life insurance	$ 98,700	$ 98,039
Interest receivable	30,728	29,768
FHLB stock	5,220	5,806
Mortgage servicing rights	12,965	13,333
Operating lease right-of-use assets, net	2,153	2,337
Federal and state income taxes, current	579	1,556
Federal and state income taxes, deferred	29,582	31,218
Derivative assets	27,844	25,093
Other receivables/assets	18,706	15,630
Other assets	$ 226,477	$ 222,780

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Deposits [Abstract]
Noninterest bearing deposits	$ 920,764	$ 897,053
Interest checking deposits	1,349,823	1,320,435
Money market deposits	1,122,717	1,105,493
Savings deposits	728,276	650,655
Time deposits of $250 and under	992,851	973,253
Time deposits over $250	470,805	448,784
Total deposits	5,585,236	5,395,673
Domestic time deposit, brokered	14,000	15,200
Domestic non-time deposit, brokered	132,700	128,000
Noninterest-bearing reciprocal deposits	64,200	58,000
Brokered deposit	205,000	221,000
Deposits of government entities	$ 285,100	$ 183,400

Short-Term Borrowings (Details)

Short-Term Borrowings (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Short-term Debt [Line Items]
Weighted Average Rate	4.79%	4.78%
Short-term borrowings	$ 422,988,000	$ 300,264,000
Debt securities available for sale	797,230,000	795,134,000
Asset Pledged as Collateral without Right
Short-term Debt [Line Items]
Debt securities available for sale	$ 1,240,000,000	$ 1,160,000,000
Securities sold under agreements to repurchase
Short-term Debt [Line Items]
Weighted Average Rate	0.68%	0.72%
Short-term borrowings	$ 4,988,000	$ 5,064,000
Federal Home Loan Bank advances
Short-term Debt [Line Items]
Weighted Average Rate	0%	5.64%
Short-term borrowings	$ 0	$ 10,200,000
Federal Reserve Bank borrowings
Short-term Debt [Line Items]
Weighted Average Rate	4.77%	4.82%
Short-term borrowings	$ 405,000,000	$ 285,000,000
Unsecured line of credit
Short-term Debt [Line Items]
Weighted Average Rate	6.88%	0%
Short-term borrowings	$ 13,000,000	$ 0
Unsecured line of credit, maximum borrowing capacity	$ 25,000,000
Unused commitment fee percentage	0.30%
Unsecured line of credit | SOFR Rate
Short-term Debt [Line Items]
Debt instrument, basis spread on variable rate	1.55%
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 advances | Federal Reserve
Short-term Debt [Line Items]
Short-term borrowings	0	0
Financing capacity	421,400,000	428,800,000
Federal Reserve Bank advances | Bank Term Funding Loan
Short-term Debt [Line Items]
Short-term borrowings	405,000,000
Federal Reserve Bank advances | Asset Pledged as Collateral without Right | Municipal Securities Loan
Short-term Debt [Line Items]
Debt securities available for sale	$ 790,300,000	$ 797,600,000

Long-Term Debt - Junior Subordi

Long-Term Debt - Junior Subordinated Notes (Details) - Junior subordinated notes - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Debt instrument, face amount	$ 44,847
Debt instrument, book value	$ 42,337	$ 42,293
Stated maturity date	5 years
ATBancorp Statutory Trust I
Debt Instrument [Line Items]
Debt instrument, face amount	$ 7,732
Debt instrument, book value	$ 6,980	$ 6,970
Interest rate	7.27%	7.33%
ATBancorp Statutory Trust I | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.68%
ATBancorp Statutory Trust II
Debt Instrument [Line Items]
Debt instrument, face amount	$ 12,372
Debt instrument, book value	$ 11,051	$ 11,034
Interest rate	7.24%	7.30%
ATBancorp Statutory Trust II | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.65%
ATBancorp Statutory Trust II | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.26%
Barron Investment Capital Trust I
Debt Instrument [Line Items]
Debt instrument, face amount	$ 2,062
Debt instrument, book value	$ 1,868	$ 1,861
Interest rate	7.73%	7.77%
Barron Investment Capital Trust I | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.15%
Central Bancshares Capital Trust II
Debt Instrument [Line Items]
Debt instrument, face amount	$ 7,217
Debt instrument, book value	$ 6,974	$ 6,964
Interest rate	9.09%	9.15%
Central Bancshares Capital Trust II | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	3.50%
MidWestOne Statutory Trust II
Debt Instrument [Line Items]
Debt instrument, face amount	$ 15,464
Debt instrument, book value	$ 15,464	$ 15,464
Interest rate	7.18%	7.24%
MidWestOne Statutory Trust II | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.59%

Long-Term Debt - Subordinated D

Long-Term Debt - Subordinated Debentures (Details) - Subordinated debt - USD ($) $ in Thousands		3 Months Ended
	Jul. 28, 2020	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Percentage of debentures categorized as tier 2 capital		100%
Percentage of debentures, decrease to tier 2 treatment, per year		20%
Decrease to tier 2 treatment, period of recognition		5 years
Long-term debt		$ 64,200	$ 64,100
5.75% Fixed to floating subordinated notes
Debt Instrument [Line Items]
Debt instrument, 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	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Jun. 07, 2022
Debt Instrument [Line Items]
Weighted Average Rate	5.44%	5.56%
Balance	$ 15,559	$ 16,866
Unsecured line of credit, maximum borrowing capacity			$ 35,000
Finance lease payable
Debt Instrument [Line Items]
Weighted Average Rate	8.89%	8.89%
Balance	$ 554	$ 604
FHLB borrowings
Debt Instrument [Line Items]
Weighted Average Rate	3.11%	3.11%
Balance	$ 6,255	$ 6,262
Federal home loan, bank advances general debt obligations, disclosures maximum borrowing capacity as percentage of total assets	45%
Note payable to unaffiliated bank
Debt Instrument [Line Items]
Weighted Average Rate	6.88%	6.89%
Balance	$ 8,750	$ 10,000
Note payable to unaffiliated bank | SOFR Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.55%

Long-Term Debt - Federal Home L

Long-Term Debt - Federal Home Loan Bank Advances (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Weighted Average Rate
Due in 2024	3.11%
Amount
Due in 2024	$ 6,250
Valuation adjustment from acquisition accounting	5
Total	$ 6,255

Earnings per Share - Basic And

Earnings per Share - Basic And Diluted Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Basic Earnings Per Share:
Net income	$ 3,269	$ 1,397
Weighted average shares outstanding (in shares)	15,722,697	15,649,651
Basic earnings per common share (in dollars per share)	$ 0.21	$ 0.09
Diluted Earnings Per Share:
Net income	$ 3,269	$ 1,397
Weighted average shares outstanding, including all dilutive potential shares (in shares)	15,773,521	15,691,168
Diluted earnings per common share (in dollars per share)	$ 0.21	$ 0.09

Regulatory Capital Requiremen_3

Regulatory Capital Requirements and Restrictions on Subsidiary Cash (Details)	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Cash reserve deposit required and made	$ 0	$ 0
Capital	$ 661,448,000	$ 668,748,000
Capital to risk weighted assets	0.1197	0.1253
Capital required for capital adequacy	$ 580,192,000	$ 560,596,000
Capital required for capital adequacy to risk weighted assets	0.1050	0.1050
Tier one risk based capital	$ 538,756,000	$ 554,177,000
Tier one risk based capital to risk weighted assets	0.0975	0.1038
Tier one risk based capital required for capital adequacy	$ 469,679,000	$ 453,816,000
Tier one risk based capital required for capital adequacy to risk weighted assets	0.0850	0.0850
Common equity tier one capital	$ 496,419,000	$ 511,884,000
Common equity tier one capital to risk weighted assets	8.98%	9.59%
Common equity tier one capital required for capital adequacy	$ 386,795,000	$ 373,731,000
Common equity tier one capital required for capital adequacy to risk weighted assets	7%	7%
Tier one leverage capital	$ 538,756,000	$ 554,177,000
Tier one leverage capital to average assets	0.0816	0.0858
Tier one leverage capital required for capital adequacy	$ 264,001,000	$ 258,487,000
Tier one leverage capital required for capital adequacy to average assets	0.0400	0.0400
Capital conservation buffer	2.50%	2.50%
MidWestOne Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital	$ 675,287,000	$ 656,027,000
Capital to risk weighted assets	0.1225	0.1249
Capital required for capital adequacy	$ 578,805,000	$ 551,658,000
Capital required for capital adequacy to risk weighted assets	0.1050	0.1050
Capital required to be well capitalized	$ 551,243,000	$ 525,388,000
Capital required to be well capitalized to risk weighted assets	0.1000	0.1000
Tier one risk based capital	$ 617,596,000	$ 606,456,000
Tier one risk based capital to risk weighted assets	0.1120	0.1154
Tier one risk based capital required for capital adequacy	$ 468,557,000	$ 446,580,000
Tier one risk based capital required for capital adequacy to risk weighted assets	0.0850	0.0850
Tier one risk based capital required to be well capitalized	$ 440,995,000	$ 420,310,000
Tier one risk based capital required to be well capitalized to risk weighted assets	0.0800	0.0800
Common equity tier one capital	$ 617,596,000	$ 606,456,000
Common equity tier one capital to risk weighted assets	11.20%	11.54%
Common equity tier one capital required for capital adequacy	$ 385,870,000	$ 367,772,000
Common equity tier one capital required for capital adequacy to risk weighted assets	7%	7%
Common equity tier one risk based capital required to be well capitalized	$ 358,308,000	$ 341,502,000
Common equity tier one risk based capital required to be well capitalized to risk weighted assets	6.50%	6.50%
Tier one leverage capital	$ 617,596,000	$ 606,456,000
Tier one leverage capital to average assets	0.0936	0.0939
Tier one leverage capital required for capital adequacy	$ 263,801,000	$ 258,339,000
Tier one leverage capital required for capital adequacy to average assets	0.0400	0.0400
Tier one leverage capital required to be well capitalized	$ 329,751,000	$ 322,924,000
Tier one leverage capital required to be well capitalized to average assets	0.0500	0.0500

Commitments and Contingencies -

Commitments and Contingencies - Schedule of Commitments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Other Commitments [Line Items]
Total	$ 1,241,095	$ 1,211,841
Commitments to sell loans
Other Commitments [Line Items]
Total	2,329	1,045
Commitments to extend credit
Other Commitments [Line Items]
Total	1,230,612	1,203,001
Standby letters of credit
Other Commitments [Line Items]
Total	$ 8,154	$ 7,795

Commitments and Contingencies_2

Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Concentration Risk [Line Items]
Off-balance sheet, credit loss, liability	$ 4.7		$ 4.6
Credit loss expense, off balance sheet credit loss expense (benefit)	$ 0.1	$ 0
Credit Concentration Risk | Loans Concentration | Agricultural Related Loan Financing Receivable
Concentration Risk [Line Items]
Concentration risk, percentage	7%
Credit Concentration Risk | Loans Concentration | Commercial real estate
Concentration Risk [Line Items]
Concentration risk, percentage	66%
Credit Concentration Risk | Investment Securities | State and political subdivisions | IOWA
Concentration Risk [Line Items]
Concentration risk, percentage	13%
Credit Concentration Risk | Investment Securities | State and political subdivisions | CALIFORNIA
Concentration Risk [Line Items]
Concentration risk, percentage	12%
Credit Concentration Risk | Investment Securities | State and political subdivisions | MINNESOTA
Concentration Risk [Line Items]
Concentration risk, percentage	10%

Fair Value of Financial Instr_3

Fair Value of Financial Instruments and Fair Value Measurements - Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	$ 797,230	$ 795,134
Derivative assets	27,844	25,093
Mortgage servicing rights	12,965	13,333
Derivative liabilities	23,141	24,057
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	0	0
Derivative assets	0	0
Derivative liabilities	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	797,230	795,134
Derivative assets	27,767	25,043
Derivative liabilities	23,141	24,057
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	0	0
Derivative assets	77	50
Derivative liabilities	0	0
U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	247
State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	123,378	130,139
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	5,199	5,311
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	427,918	440,051
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative assets	27,844	25,093
Mortgage servicing rights	12,965	13,333
Derivative liabilities	23,141	24,057
Recurring | Collateralized loan obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	61,866	50,437
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative assets	0	0
Mortgage servicing rights	0	0
Derivative liabilities	0	0
Recurring | Level 1 | Collateralized loan obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	0	0
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative assets	27,767	25,043
Mortgage servicing rights	12,965	13,333
Derivative liabilities	23,141	24,057
Recurring | Level 2 | Collateralized loan obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	61,866	50,437
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative assets	77	50
Mortgage servicing rights	0	0
Derivative liabilities	0	0
Recurring | Level 3 | Collateralized loan obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	0	0
Recurring | U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	247
Recurring | U.S. Treasury securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	0
Recurring | U.S. Treasury securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	247
Recurring | U.S. Treasury securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	0
Recurring | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	123,378	130,139
Recurring | State and political subdivisions | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	0	0
Recurring | State and political subdivisions | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	123,378	130,139
Recurring | State and political subdivisions | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	0	0
Recurring | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	5,199	5,311
Recurring | Mortgage-backed securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	0	0
Recurring | Mortgage-backed securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	5,199	5,311
Recurring | Mortgage-backed securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	0	0
Recurring | Collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	178,622	169,196
Recurring | Collateralized mortgage obligations | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	0	0
Recurring | Collateralized mortgage obligations | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	178,622	169,196
Recurring | Collateralized mortgage obligations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	0	0
Recurring | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	427,918	440,051
Recurring | Corporate debt securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	0	0
Recurring | Corporate debt securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	427,918	440,051
Recurring | Corporate debt securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	$ 0	$ 0

Fair Value of Financial Instr_4

Fair Value of Financial Instruments and Fair Value Measurements - Valuation Techniques (Details) $ in Thousands	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, fair value	$ 27,844	$ 25,093
Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, fair value	27,844	25,093
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, fair value	77	50
Level 3 | Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, fair value	77	50
Interest rate lock commitments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, fair value	$ 77	$ 50
Interest rate lock commitments | Minimum | Level 3 | Recurring | Pull-through rate | Valuation, Market Approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0.71
Interest rate lock commitments | Maximum | Level 3 | Recurring | 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 | Pull-through rate | Valuation, Market Approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0.86

Fair Value of Financial Instr_5

Fair Value of Financial Instruments and Fair Value Measurements - Measured on a Nonrecurring Basis (Details) $ in Thousands	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Foreclosed assets, net	$ 3,897	$ 3,929
Nonrecurring | Collateral dependent individually analyzed loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Collateral dependent individually analyzed loans	4,481	6,524
Nonrecurring | Collateral dependent individually analyzed loans | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Collateral dependent individually analyzed loans	0	0
Nonrecurring | Collateral dependent individually analyzed loans | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Collateral dependent individually analyzed loans	0	0
Nonrecurring | Collateral dependent individually analyzed loans | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Collateral dependent individually analyzed loans	$ 4,481	6,524
Nonrecurring | Collateral dependent individually analyzed loans | Level 3 | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0
Nonrecurring | Collateral dependent individually analyzed loans | Level 3 | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0.33
Nonrecurring | Collateral dependent individually analyzed loans | Level 3 | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0.11
Nonrecurring | Foreclosed assets, net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Foreclosed assets, net	$ 3,897	3,929
Nonrecurring | Foreclosed assets, net | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Foreclosed assets, net	0	0
Nonrecurring | Foreclosed assets, net | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Foreclosed assets, net	0	0
Nonrecurring | Foreclosed assets, net | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Foreclosed assets, net	$ 3,897	$ 3,929
Nonrecurring | Foreclosed assets, net | Level 3 | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0.07
Nonrecurring | Foreclosed assets, net | Level 3 | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0.11
Nonrecurring | Foreclosed assets, net | Level 3 | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0.11

Fair Value of Financial Instr_6

Fair Value of Financial Instruments and Fair Value Measurements - Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financial assets:
Debt securities available for sale	$ 797,230	$ 795,134
Debt securities held to maturity	1,064,939	1,075,190
Interest receivable	30,728	29,768
FHLB stock	5,220	5,806
Derivative assets	27,844	25,093
Financial liabilities:
Interest bearing deposits	1,349,823	1,320,435
Short-term borrowings	422,988	300,264
Finance leases payable	554	604
Derivative liabilities	23,141	24,057
Carrying Amount
Financial assets:
Cash and cash equivalents	97,762	81,727
Debt securities available for sale	797,230	795,134
Debt securities held to maturity	1,064,939	1,075,190
Loans held for sale	2,329	1,045
Loans held for investment, net	4,358,746	4,075,447
Interest receivable	30,728	29,768
FHLB stock	5,220	5,806
Derivative assets	27,844	25,093
Financial liabilities:
Noninterest bearing deposits	920,764	897,053
Interest bearing deposits	4,664,472	4,498,620
Short-term borrowings	422,988	300,264
Finance leases payable	554	604
FHLB borrowings	6,255	6,262
Junior subordinated notes issued to capital trusts	42,337	42,293
Subordinated debentures	64,170	64,137
Other long-term debt	8,750	10,000
Derivative liabilities	23,141	24,057
Estimated Fair Value
Financial assets:
Cash and cash equivalents	97,762	81,727
Debt securities available for sale	797,230	795,134
Debt securities held to maturity	875,644	895,263
Loans held for sale	2,357	1,083
Loans held for investment, net	4,220,905	3,953,368
Interest receivable	30,728	29,768
FHLB stock	5,220	5,806
Derivative assets	27,844	25,093
Financial liabilities:
Noninterest bearing deposits	920,764	897,053
Interest bearing deposits	4,635,692	4,489,322
Short-term borrowings	422,988	300,264
Finance leases payable	554	604
FHLB borrowings	5,929	6,199
Junior subordinated notes issued to capital trusts	37,990	37,938
Subordinated debentures	60,876	61,940
Other long-term debt	8,750	10,000
Derivative liabilities	23,141	24,057
Level 1
Financial assets:
Cash and cash equivalents	97,762	81,727
Debt securities available for sale	0	0
Debt securities held to maturity	0	0
Loans held for sale	0	0
Loans held for investment, net	0	0
Interest receivable	0	0
FHLB stock	0	0
Derivative assets	0	0
Financial liabilities:
Noninterest bearing deposits	920,764	897,053
Interest bearing deposits	3,200,816	3,076,582
Short-term borrowings	422,988	300,264
Finance leases payable	0	0
FHLB borrowings	0	0
Junior subordinated notes issued to capital trusts	0	0
Subordinated debentures	0	0
Other long-term debt	0	0
Derivative liabilities	0	0
Level 2
Financial assets:
Cash and cash equivalents	0	0
Debt securities available for sale	797,230	795,134
Debt securities held to maturity	875,644	895,263
Loans held for sale	2,357	1,083
Loans held for investment, net	0	0
Interest receivable	30,728	29,768
FHLB stock	5,220	5,806
Derivative assets	27,767	25,043
Financial liabilities:
Noninterest bearing deposits	0	0
Interest bearing deposits	1,434,876	1,412,740
Short-term borrowings	0	0
Finance leases payable	554	604
FHLB borrowings	5,929	6,199
Junior subordinated notes issued to capital trusts	37,990	37,938
Subordinated debentures	60,876	61,940
Other long-term debt	8,750	10,000
Derivative liabilities	23,141	24,057
Level 3
Financial assets:
Cash and cash equivalents	0	0
Debt securities available for sale	0	0
Debt securities held to maturity	0	0
Loans held for sale	0	0
Loans held for investment, net	4,220,905	3,953,368
Interest receivable	0	0
FHLB stock	0	0
Derivative assets	77	50
Financial liabilities:
Noninterest bearing deposits	0	0
Interest bearing deposits	0	0
Short-term borrowings	0	0
Finance leases payable	0	0
FHLB borrowings	0	0
Junior subordinated notes issued to capital trusts	0	0
Subordinated debentures	0	0
Other long-term debt	0	0
Derivative liabilities	$ 0	$ 0

Leases - Assets and Liabilities

Leases - Assets and Liabilities (Details) $ in Thousands	Mar. 31, 2024 USD ($) lease	Dec. 31, 2023 USD ($)
Leases [Abstract]
Number of leases | lease	1
Lease Right of Use Assets [Abstract]
Operating lease right-of-use assets	$ 2,153	$ 2,337
Finance lease right-of-use asset	231	255
Total right-of-use assets	2,384	2,592
Lease Liabilities [Abstract]
Operating lease liability	2,842	3,078
Finance lease liability	554	604
Total lease liabilities	$ 3,396	$ 3,682
Weighted-average remaining lease term:
Operating leases	10 years 7 months 9 days	10 years 2 months 12 days
Finance lease	2 years 5 months 1 day	2 years 8 months 1 day
Weighted-average discount rate:
Operating leases	4.54%	4.43%
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 Cost (Details)

Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Operating lease cost	$ 388	$ 292
Variable lease cost	7	7
Interest on lease liabilities	13	17
Amortization of right-of-use assets	24	24
Net lease cost	432	340
Operating cash flows from operating leases	822	605
Operating cash flows from finance lease	13	17
Finance cash flows from finance lease	50	43
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 156	$ 292

Leases - Maturity Schedule (Det

Leases - Maturity Schedule (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Finance Leases
December 31, 2024	$ 188
December 31, 2025	254
December 31, 2026	172
December 31, 2027	0
December 31, 2028	0
Thereafter	0
Total undiscounted lease payment	614
Amounts representing interest	(60)
Finance lease liability	554	$ 604
Operating Leases
December 31, 2024	734
December 31, 2025	601
December 31, 2026	447
December 31, 2027	302
December 31, 2028	138
Thereafter	1,600
Total undiscounted lease payment	3,822
Amounts representing interest	(980)
Operating lease liability	$ 2,842	$ 3,078

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 524,378	$ 492,793
Other comprehensive (loss) income before reclassifications	4,052	324
Amounts reclassified from AOCI	43	9,838
Other comprehensive income, net of tax	4,095	10,162
Ending balance	528,040	500,650
AOCI Attributable to Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(64,899)	(89,047)
Other comprehensive income, net of tax	4,095	10,162
Ending balance	(60,804)	(78,885)
Unrealized Gain (Loss) from AFS Debt Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(69,915)	(91,852)
Other comprehensive (loss) income before reclassifications	1,607	(213)
Amounts reclassified from AOCI	632	9,838
Other comprehensive income, net of tax	2,239	9,625
Ending balance	(67,676)	(82,227)
Reclassification of AFS Debt Securities to HTM
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	4,511	2,805
Other comprehensive (loss) income before reclassifications	374	434
Amounts reclassified from AOCI	0	0
Other comprehensive income, net of tax	374	434
Ending balance	4,885	3,239
Unrealized Gain from Cash Flow Hedging Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	505	0
Other comprehensive (loss) income before reclassifications	2,071	103
Amounts reclassified from AOCI	(589)	0
Other comprehensive income, net of tax	1,482	103
Ending balance	$ 1,987	$ 103

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) - s (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Investment securities gains (losses), net	$ 36	$ (13,170)
Interest income	69,535	59,305
Interest expense	(34,804)	(19,229)
Income tax expense	(958)	(381)
Net income	3,269	1,397
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Investment securities gains (losses), net	(36)	13,170
Interest income	882	0
Interest expense	(788)	0
Income tax expense	(15)	(3,332)
Net income	$ 43	$ 9,838

Subsequent Events (Details)

Subsequent Events (Details)	Apr. 25, 2024 $ / shares
Common Stock | Subsequent Event
Subsequent Event [Line Items]
Dividends payable (in dollars per share)	$ 0.2425