Old Second Bancorp (OSBC) 10-K 6 Mar 25 2024 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Mar. 05, 2025	Jun. 30, 2024
Document and Entity Information
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2024
Entity File Number	000-10537
Entity Registrant Name	OLD SECOND BANCORP INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-3143493
Entity Address, Address Line One	37 South River Street
Entity Address, City or Town	Aurora
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60507
City Area Code	(630)
Local Phone Number	892-0202
Title of 12(b) Security	Common Stock
Trading Symbol	OSBC
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 636
Entity Common Stock, Shares Outstanding		45,047,151
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY
Entity Central Index Key	0000357173
Amendment Flag	false
Auditor Name	Plante & Moran PLLC
Auditor Firm ID	166
Auditor Location	Chicago, Illinois
Documents Incorporated by Reference	Certain information required by Part III of this Annual Report on Form 10-K is incorporated by reference from the registrant's definitive proxy statement relating to the 2025 Annual Meeting of Stockholders, which will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this Annual Report on Form 10-K relates.

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Assets
Cash and due from banks	$ 52,175	$ 55,534
Interest earning deposits with financial institutions	47,154	44,611
Cash and cash equivalents	99,329	100,145
Securities available-for-sale, at fair value	1,161,701	1,192,829
Federal Home Loan Bank Chicago ("FHLBC") and Federal Reserve Bank Chicago ("FRBC") stock	19,441	33,355
Loans held-for-sale	1,556	1,322
Loans	3,981,336	4,042,953
Less: allowance for credit losses on loans	43,619	44,264
Net loans	3,937,717	3,998,689
Premises and equipment, net	87,311	79,310
Other real estate owned	21,617	5,123
Mortgage servicing rights, at fair value	10,374	10,344
Goodwill	93,260	86,478
Core deposit intangible	22,031	11,217
Bank-owned life insurance ("BOLI")	112,751	109,318
Deferred tax assets, net	26,619	31,077
Other assets	55,670	63,592
Total assets	5,649,377	5,722,799
Deposits:
Noninterest bearing demand	1,704,920	1,834,891
Interest bearing:
Savings, NOW, and money market	2,315,134	2,207,949
Time	748,677	527,906
Total deposits	4,768,731	4,570,746
Securities sold under repurchase agreements	36,657	26,470
Other short-term borrowings	20,000	405,000
Junior subordinated debentures	25,773	25,773
Subordinated debentures	59,467	59,382
Other liabilities	67,715	58,147
Total liabilities	4,978,343	5,145,518
Stockholders' Equity
Common stock	44,908	44,705
Additional paid-in capital	205,284	202,223
Retained earnings	469,165	393,311
Accumulated other comprehensive loss	(47,748)	(62,781)
Treasury stock	(575)	(177)
Total stockholders' equity	671,034	577,281
Total liabilities and stockholders' equity	$ 5,649,377	$ 5,722,799

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2024	Dec. 31, 2023
Consolidated Balance Sheets
Common stock, Par value (in dollars per share)	$ 1	$ 1
Common stock, Shares authorized	60,000,000	60,000,000
Common stock, Shares issued	44,907,619	44,705,150
Common stock, Shares outstanding	44,873,467	44,697,917
Treasury stock, Shares	34,152	7,233

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Interest and dividend income
Loans, including fees	$ 253,319	$ 244,187	$ 176,379
Loans held-for-sale	94	91	130
Securities:
Taxable	34,656	37,940	31,566
Tax exempt	5,164	5,329	5,287
Dividends from FHLBC and FRBC stock	2,278	1,920	936
Interest bearing deposits with financial institutions	2,393	2,503	2,175
Total interest and dividend income	297,904	291,970	216,473
Interest expense
Savings, NOW, and money market deposits	17,866	8,761	1,900
Time deposits	20,147	6,636	1,448
Securities sold under repurchase agreements	337	93	40
Other short-term borrowings	14,607	18,774	480
Junior subordinated debentures	1,127	1,095	1,136
Subordinated debentures	2,185	2,185	2,185
Senior notes		2,408	2,682
Notes payable and other borrowings		87	446
Total interest expense	56,269	40,039	10,317
Net interest and dividend income	241,635	251,931	206,156
Provision for credit losses	12,750	16,501	6,550
Net interest and dividend income after provision for credit losses	228,885	235,430	199,606
Noninterest income
Mortgage servicing rights mark to market (loss) gain	(723)	(1,425)	3,177
Net gain on sales of mortgage loans	1,805	1,477	2,022
Securities losses, net		(4,148)	(944)
Change in cash surrender value of BOLI	3,619	2,120	718
Death benefit realized on BOLI	905
Card related income	10,114	10,051	10,989
Other income	4,218	4,196	5,243
Total noninterest income	43,819	34,179	43,116
Noninterest expense
Salaries and employee benefits	98,025	88,566	86,573
Occupancy, furniture and equipment	16,159	14,437	14,992
Computer and data processing	9,473	7,277	15,795
FDIC insurance	2,543	2,705	2,401
Net teller & bill paying	2,244	2,115	3,730
General bank insurance	1,268	1,212	1,221
Amortization of core deposit intangible	2,440	2,461	2,626
Advertising expense	1,243	721	589
Card related expense	5,555	5,123	4,348
Legal fees	1,326	927	873
Consulting & management fees	2,496	2,415	2,425
Other real estate expense, net	2,220	399	130
Other expense	14,756	16,843	15,470
Total noninterest expense	159,748	145,201	151,173
Income before income taxes	112,956	124,408	91,549
Provision for income taxes	27,692	32,679	24,144
Net income	$ 85,264	$ 91,729	$ 67,405
Basic earnings per share	$ 1.90	$ 2.05	$ 1.51
Diluted earnings per share	1.87	2.02	1.49
Dividends declared per share	$ 0.21	$ 0.20	$ 0.20
Wealth management
Noninterest income
Service charges on deposits	$ 11,426	$ 9,803	$ 9,887
Service charges on deposits
Noninterest income
Service charges on deposits	10,226	9,817	9,562
Secondary mortgage fees
Noninterest income
Service charges on deposits	287	259	332
Mortgage servicing income
Noninterest income
Service charges on deposits	$ 1,942	$ 2,029	$ 2,130

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Consolidated Statements of Comprehensive Income (Loss)
Net Income (Loss)	$ 85,264	$ 91,729	$ 67,405
Unrealized holding gains (losses) on available-for-sale securities arising during the period	15,525	35,160	(139,876)
Related tax (expense) benefit	(4,347)	(9,889)	39,166
Holding gains (losses), after tax, on available-for-sale securities	11,178	25,271	(100,710)
Less: Reclassification adjustment for the net gains (losses) realized during the period
Net realized losses		(4,148)	(944)
Related tax benefit		1,117	265
Net realized losses, after tax		(3,031)	(679)
Other comprehensive income (loss) on available-for-sale securities	11,178	28,302	(100,031)
Changes in fair value of derivatives used for cash flow hedges	5,333	2,851	(2,579)
Related tax (expense) benefit	(1,478)	(810)	718
Other comprehensive income on cash flow hedges	3,855	2,041	(1,861)
Total other comprehensive income (loss)	15,033	30,343	(101,892)
Total comprehensive income	$ 100,297	$ 122,072	$ (34,487)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities
Net income	$ 85,264,000	$ 91,729,000	$ 67,405,000
Adjustments to reconcile net income to net cash provided by operating activities:
Net premium / discount amortization on securities	2,651,000	3,317,000	5,217,000
Securities losses, net		4,148,000	944,000
Provision for credit losses	12,750,000	16,501,000	6,550,000
Originations of loans held-for-sale	(58,011,000)	(52,091,000)	(76,607,000)
Proceeds from sales of loans held-for-sale	58,818,000	52,186,000	81,776,000
Net gains on sales of mortgage loans	(1,805,000)	(1,477,000)	(2,022,000)
Mortgage servicing rights mark to market loss	723,000	1,425,000	(3,177,000)
Net accretion of discount on loans and unfunded commitments	(422,000)	(3,067,000)	(6,339,000)
Net change in cash surrender value of BOLI	(3,619,000)	(2,120,000)	(718,000)
Net gains on sale of other real estate owned	(390,000)	(256,000)	(163,000)
Provision for other real estate owned valuation losses	1,744,000	269,000	104,000
Depreciation of fixed assets and amortization of leasehold improvements	5,591,000	4,485,000	4,085,000
Amortization of operating lease right-of-use asset	1,129,000	758,000	174,000
Net gains on disposal and transfer of fixed assets	(31,311)	(623,000)	(2,017,000)
Loss on lease termination	46,500
Amortization of core deposit intangibles	2,440,000	2,461,000	2,626,000
Change in current income taxes receivable	5,991,000	(4,872,000)	12,048,000
Deferred tax expense (benefit)	(1,367,000)	1,857,000	969,000
Change in accrued interest receivable and other assets	4,135,000	(6,639,000)	(1,114,000)
Accretion of purchase accounting adjustment on time deposits	(235,000)	(1,226,000)	(1,582,000)
Change in accrued interest payable and other liabilities	13,486,000	6,511,000	6,416,000
Payments on operating lease payable	(1,270,000)	(478,000)	(191,000)
Stock based compensation	3,914,000	3,603,000	2,960,000
Net cash provided by operating activities	131,533,000	116,401,000	97,344,000
Cash flows from investing activities
Proceeds from maturities and calls, including pay down of securities available-for-sale	304,167,000	186,049,000	279,848,000
Proceeds from sales of securities available-for-sale	5,331,000	205,738,000	30,981,000
Purchases of securities available-for-sale	(265,496,000)	(13,414,000)	(301,649,000)
Net redemptions (purchases) of FHLBC/FRBC stock	13,914,000	(12,825,000)	(7,273,000)
Net change in loans	34,710,000	(197,574,000)	(443,904,000)
Purchases of BOLI policies	(1,050,000)	(590,000)	(590,000)
Proceeds from claims on BOLI, net of claims receivable	1,236,000
Proceeds from sales of other real estate owned, net of participations and improvements	3,235,000	2,005,000	941,000
Proceeds from disposition of premises and equipment		4,542,000	13,346,000
Net purchases of premises and equipment	(10,787,000)	(12,376,000)	(4,332,000)
Cash received from (paid for) acquisition, net	237,441,000		(146,000)
Net cash provided by (used in) investing activities	322,701,000	161,555,000	(432,778,000)
Cash flows from financing activities
Net change in deposits	(69,776,000)	(538,751,000)	(353,927,000)
Net change in securities sold under repurchase agreements	10,187,000	(5,686,000)	(18,181,000)
Net change in other short-term borrowings	(385,000,000)	315,000,000	90,000,000
Repayment of term note		(9,000,000)	(4,000,000)
Net change in notes payable and other borrowings, excluding term note			(6,056,000)
Repayment of senior notes		(45,000,000)
Dividends paid on common stock	(9,413,000)	(8,946,000)	(8,877,000)
Purchase of treasury stock	(1,048,000)	(605,000)	(455,000)
Net cash used in financing activities	(455,050,000)	(292,988,000)	(301,496,000)
Net change in cash and cash equivalents	(816,000)	(15,032,000)	(636,930,000)
Cash and cash equivalents at beginning of period	100,145,000	115,177,000	752,107,000
Cash and cash equivalents at end of period	99,329,000	100,145,000	115,177,000
Supplemental cash flow information
Income taxes paid, net	23,034,000	35,670,000	11,232,000
Interest paid for deposits	36,915,000	14,210,000	3,418,000
Interest paid for borrowings	18,360,000	24,238,000	6,777,000
Non-cash transfer of loans to other real estate owned	21,083,000	5,580,000	87,000
Non-cash transfer of fixed assets to other assets	1,129,000	582,000	$ 4,568,000
Operating leases recognized	$ 1,250,000	$ 6,745,000

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Treasury Stock	Total
Balance at Dec. 31, 2021	$ 44,705	$ 202,443	$ 252,011	$ 8,768	$ (5,900)	$ 502,027
Increase (Decrease) in Stockholders' Equity
Net income			67,405			67,405
Other comprehensive income (loss), net of tax				(101,892)		(101,892)
Dividends declared on common stock			(8,904)			(8,904)
Vesting of restricted stock		(3,127)			3,127
Stock based compensation		2,960				2,960
Purchase of treasury stock from taxes withheld on stock awards					(455)	(455)
Balance at Dec. 31, 2022	44,705	202,276	310,512	(93,124)	(3,228)	461,141
Increase (Decrease) in Stockholders' Equity
Net income			91,729			91,729
Other comprehensive income (loss), net of tax				30,343		30,343
Dividends declared on common stock			(8,930)			(8,930)
Vesting of restricted stock		(3,656)			3,656
Stock based compensation		3,603				3,603
Purchase of treasury stock from taxes withheld on stock awards					(605)	(605)
Balance at Dec. 31, 2023	44,705	202,223	393,311	(62,781)	(177)	577,281
Increase (Decrease) in Stockholders' Equity
Net income			85,264			85,264
Other comprehensive income (loss), net of tax				15,033		15,033
Dividends declared on common stock			(9,410)			(9,410)
Vesting of restricted stock	203	(853)			650
Stock based compensation		3,914				3,914
Purchase of treasury stock from taxes withheld on stock awards					(1,048)	(1,048)
Balance at Dec. 31, 2024	$ 44,908	$ 205,284	$ 469,165	$ (47,748)	$ (575)	$ 671,034

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance	$ 577,281	$ 461,141	$ 502,027
Other comprehensive income (loss), net of tax	15,033	30,343	(101,892)
Balance	$ 671,034	$ 577,281	$ 461,141
Dividend declared and paid (per share)	$ 0.21	$ 0.20	$ 0.20
Total Accumulated Other Comprehensive Income/(Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance	$ (62,781)	$ (93,124)	$ 8,768
Other comprehensive income (loss), net of tax	15,033	30,343	(101,892)
Balance	(47,748)	(62,781)	(93,124)
Accumulated Unrealized Gain (Loss) on Securities Available-for-Sale
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance	(60,590)	(88,892)	11,139
Other comprehensive income (loss), net of tax	11,178	28,302	(100,031)
Balance	(49,412)	(60,590)	(88,892)
Accumulated Unrealized Gain (Loss) on Derivative Instruments
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance	(2,191)	(4,232)	(2,371)
Other comprehensive income (loss), net of tax	3,855	2,041	(1,861)
Balance	$ 1,664	$ (2,191)	$ (4,232)

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2024
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies	Note 1: Summary of Significant Accounting Policies ​ Nature of Operations ​ The consolidated financial statements of the Company include the financial statements of the Bank and its wholly-owned subsidiaries, River Street Advisors, LLC, an investment advisory/management service company, Old Second Affordable Housing Fund, L.L.C., which provides down payment assistance for home ownership to qualified individuals, and Station I, LLC, Station II, LLC, and Station III, LLC, which hold property acquired by the Bank through foreclosure or in the ordinary course of collecting a debt previously contracted with borrowers. The Company uses the accrual basis of accounting for financial reporting purposes. Certain amounts in prior year financial statements have been reclassified to conform to the 2024 presentation. ​ Use of Estimates ​ Principles of Consolidation – ​ Segment Reporting ​ Concentration of Credit Risk ​ Cash and Cash Equivalents ​ Securities ​ Realized securities gains or losses, which are reported in securities losses, net, in the Consolidated Statements of Income, are recognized on a trade date basis and are determined using the specific identification method. Discounts are accreted into interest income over the estimated life of the related security and premiums are amortized into income to the earlier of the call date or estimated life of the related security using the level yield method. ​ The Company has made a policy election to exclude accrued interest income from the amortized cost basis of available-for-sale debt securities and report accrued interest separately in other assets in the Consolidated Balance Sheets. A debt security is placed on nonaccrual status at the time we no longer expect to receive all contractual amounts due, which is generally at 90 days past due. Accrued interest for a security placed on nonaccrual is reversed against interest income. Accordingly, we do not recognize an allowance for credit loss against accrued interest receivable. ​ ​ For available-for-sale debt securities in an unrealized loss position, we first assess whether we intend to sell, or it is more likely than not that we will be required to sell the security, prior to the recovery of its amortized cost basis. If either of the above criteria is met, the security’s amortized cost basis is written down to fair value through earnings. When the criteria above is not met, we evaluate whether the decline in fair value is the result of credit losses or other factors. In making this assessment, we review changes to the rating of the security by a rating agency, an increase in defaults on the underlying collateral, and the extent to which the securities are issued by the federal government or its agencies, including the amount of the guarantee issued by those agencies, among other factors. If this assessment indicates that a credit loss exists, we compare the present value of cash flows expected to be collected from the security with the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis for the security, a credit loss exists and an allowance for credit losses is recorded through earnings, limited to the amount that the fair value of the security is less than its amortized cost basis. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive (loss) income, net of taxes. ​ Changes in the allowance for credit losses are recorded as a provision for (or reversal of) credit loss expense. Losses are charged against the allowance when management believes the uncollectibility of an available for sale debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met. ​ Federal Home Loan Bank and Federal Reserve Bank Stock ​ Loans Held-for-Sale ​ Mortgage loans held for sale are generally sold with servicing rights retained. The carrying value of mortgage loans is reduced by the amount allocated to the servicing right. Gains and losses on sales of mortgage loans are based on the difference between the selling price and the carrying value of the related sold loan. ​ Loans ​ Interest income on loans is accrued based on principal amounts outstanding. Loan and lease origination fees, commitment fees, and certain direct loan origination costs are deferred and amortized over the life of the related loans or commitments as a yield adjustment. Fees related to standby letters of credit, whose ultimate exercise is remote, are amortized into fee income over the estimated life of the commitment. Other related fees are recognized as fee income when earned. ​ Past Due and Nonaccrual Loans ​ 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. Generally, loans are placed on nonaccrual status (i) when either principal or interest payments become 90 days or more past due based on contractual terms unless the loan is sufficiently collateralized such that full repayment of both principal and interest is expected and is in the process of collection within a reasonable period or (ii) when an individual analysis of a borrower’s creditworthiness indicates a credit should be placed on nonaccrual status whether or not the loan is 90 days or more past due. When a loan is placed on nonaccrual status, unpaid interest credited to income is reversed. Interest received on such loans is accounted for on the cash-basis or cost recovery method, until qualifying for return to accrual. Under the cost-recovery method, interest income is not recognized until the loan balance is reduced to zero. Under the cash basis method, interest income is recorded when the payment is received in cash. Nonaccrual loans are returned to accrual status when the financial position of the borrower and other relevant factors indicate there is no longer doubt that the Company will collect all principal and interest due. ​ ​ ​ Purchase Credit Deteriorated (PCD) Loans ​ Purchased credit deteriorated loans (“PCD loans”) are purchased loans, that, as of the date of acquisition, have experienced a more-than-insignificant deterioration in credit quality since origination, as determined by the Company’s assessment. An allowance for credit losses is determined using the same methodology as other loans held for investment. The initial allowance for credit losses determined on an individual loan basis from an evaluation of each specific loan and its related credit metrics. The sum of the loan’s purchase price and initial allowance for credit losses becomes its initial amortized cost basis. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is accreted or amortized into interest income over the life of the loan. Expected cash flows in excess of the amount paid are recorded as interest income over the remaining life of the loans (accretable yield). The excess of the loan’s contractual principal and interest over expected cash flows is not recorded (nonaccretable difference). ​ Subsequent changes to the allowance for credit losses are recorded through provision for credit losses. Over the life of the loan, expected cash flows continue to be estimated. If the present value of expected cash flows is less than the carrying amount, a loss is recorded as a provision for credit losses. If the present value of expected cash flows is greater than the carrying value, it is recognized as part of future interest income. ​ Non-Purchase Credit Deteriorated (Non-PCD) Loans ​ Non-purchased credit deteriorated loans (“non-PCD loans”) are purchased loans, that, as of the date of acquisition, have not experienced a significant deterioration in credit quality since origination, as determined by the Company’s assessment. An allowance for credit losses is determined using the same methodology as other loans held for investment, and no allowance is established as a Day One fair valuation allowance. The sum of the loan’s purchase price net of any related credit and interest rate premium or discount becomes its initial amortized cost basis. The difference between the initial amortized cost basis and the par value of the loan is a discount or premium, which is comprised of an interest component and a credit component, and is accreted or amortized into interest income over the life of the loan. Expected cash flows in excess of the amount paid are recorded as interest income over the remaining life of the loans (accretable yield). The excess of the loan’s contractual principal and interest over expected cash flows is not recorded (nonaccretable difference). ​ A subsequent Day Two adjustment on non-PCD loans is recorded to the allowance for credit losses immediately after acquisition, which reflects the future estimated lifetime credit losses on the non-PCD loans, recorded through the provision for credit losses. Over the life of the loan, expected cash flows continue to be estimated. If the present value of expected cash flows is less than the carrying amount, a loss is recorded as a provision for credit losses. If the present value of expected cash flows is greater than the carrying value, it is recognized as part of future interest income. ​ Allowance for Credit Losses (“ACL”) ​ ACL on Loans ​ The ACL on loans is a valuation account that is deducted from the amortized cost basis of loans to present the net amount expected to be collected on loans. The Company’s estimate of the ACL for loans reflects losses expected over the remaining contractual life of the loans. The contractual term does not consider extensions, renewals or modifications. ​ Determination of the ACL on loans is inherently subjective in nature since it requires significant estimates and management judgment, and includes a level of imprecision given the difficulty of identifying and assessing the factors impacting loan repayment and estimating the timing and amount of losses. While management utilizes its best judgment and information available, the ultimate adequacy of the ACL is dependent upon a variety of factors beyond the Company’s direct control, including, but not limited to, the performance of the loan portfolio, consideration of current economic trends, changes in interest rates and property values, estimated losses on pools of homogeneous loans based on an analysis that uses historical loss experience for prior periods that are determined to have like characteristics with the current period such as pre-recessionary, recessionary, or recovery periods, portfolio growth and concentration risk, management and staffing changes, the interpretation of loan risk classifications by regulatory authorities and other credit market factors. While each component of the ACL on loans is determined separately, the entire balance is available for the entire loan portfolio. ​ The ACL methodology consists of measuring loans on a collective (pool) basis when similar risk characteristics exist. The type of credit composition and risk characteristics of each portfolio segment are as follows: ​ Commercial loans ​ Lease financing receivables – ​ Real estate - commercial loans - ● CRE owner occupied – the Company classifies five different risk levels within this segment to assign a loss rate based on historical losses, as well as utilizing a forecasted average unemployment rate and Gross Domestic Product (“GDP”) for the next twelve months as a loss driver. ● CRE investor – the Company classifies five different risk levels within this segment to assign a loss rate based on historical losses, as well as utilizing a forecasted average unemployment rate and GDP for the next twelve months as a loss driver. The primary difference between this segment and CRE owner occupied is within the slightly elevated historical loss rates. ​ Real estate - construction loans ​ Real estate - residential loans ● Residential owner-occupied – these loans are secured by 1-4 family residential dwellings that are primary or secondary residences and the Company holds a first lien position. The Company applies historical loss rates from periods with like characteristics as the current period, with a longer remaining life than other segments, due to the often longer-term nature of these loans. ● Residential investor – these loans are secured by 1-4 family residential dwellings that are not a primary or secondary residence and the Company holds a first lien position. The Company applies historical loss rates from periods with like characteristics as the current period, with a slightly longer remaining life than other segments, but shorter duration than residential owner-occupied. ● Multifamily – these loans are secured by 5+ unit residential dwellings and the Company typically holds a first lien position. The Company classifies five different risk levels within this segment to assign a loss rate based on historical losses, as well as utilizing a forecasted average unemployment rate and GDP for the next twelve months as a loss driver. ​ Home equity lines of credit (“HELOCs”) ​ Consumer loans ​ The methodologies used for calculating the ACL on each loan segment include (i) a migration analysis for commercial, CRE owner occupied, CRE investor, and multifamily segments; (ii) a static pool analysis for construction, leases, residential investor, residential owner occupied and the HELOC segments; and (iii) a WARM (weighted average remaining maturity) methodology is used for consumer segments. The forecast period used for each segment calculation was one year, with an immediate reversion to historical loss rates following this one year period. In addition, the Company applies qualitative adjustments to each different loan, as described below. ​ ​ ​ The qualitative factors applied to each ● changes in lending policies and procedures, including changes in underwriting standards and collections, charge-offs and recovery practices; ● changes in international, national, regional, and local conditions (specific factors which impact portfolios or discrepancies with national economic factors which are utilized within the economic forecast); ● changes in the experience, depth and ability of lending management; ● changes in the volume and severity of past due loans and other similar loan conditions; ● changes in the nature and volume of the loan portfolio and terms of loans; ● the existence and effect of any concentrations of credit and changes in the levels of such concentrations (this characteristic requires any portfolio exceeding 25% of capital to have a factor considered unless the pool is otherwise well diversified or holds a relatively low inherent risk); ● effects of other external factors, such as competition, legal or regulatory factors, on the level of estimated credit losses; ● changes in the quality of our loan review functions; and ● changes in the value of underlying collateral for collateral dependent loans. ​ The impact of the above listed internal and external qualitative and credit market risk factors is assessed within predetermined ranges to adjust the ACL totals calculated. Changes in the above factors are assessed no less than quarterly, and directly impact the total estimated credit losses recorded. ​ Loans that do not share risk characteristics are evaluated on an individual basis. Such loans evaluated individually are not also included in the collective evaluation. The amount of expected credit loss is measured based upon the present value of expected future cash flows discounted at the loan’s effective interest rate or the fair value of the underlying collateral less applicable selling costs. When management determines that foreclosure is probable, the amount of credit loss is determined using the fair value of collateral, less costs to sell. ​ Loans are charged off against the ACL when management believes the uncollectibility of a loan balance is confirmed, while recoveries of amounts previously charged-off are credited to the ACL. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged off. Approved releases from previously established ACL reserves authorized under our ACL methodology also reduce the ACL. Additions to the ACL are established through the provision for credit losses on loans, which is charged to expense. The Company’s ACL methodology is intended to reflect all loan portfolio risk, but management recognizes the inability to accurately depict all future credit losses in a current ACL estimate, as the impact of various factors cannot be fully known. Accrued interest receivable on loans is excluded from the amortized cost basis of financing receivables for the purpose of determining the allowance for credit losses. ​ ACL on Unfunded Loan Commitments ​ The Company estimates expected credit losses over the contractual period in which the Company is exposed to credit risk by a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Company. The ACL related to off-balance sheet credit exposures, which is within other liabilities on the Company’s Consolidated Balance Sheets, is estimated at each balance sheet date under the CECL model, and is adjusted as determined necessary through the provision for credit losses on the income statement. The estimate for ACL on unfunded loan commitments includes consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded over its estimated life. ​ Premises and Equipment ​ Whenever events or changes in circumstances dictate, the Company tests its long-lived assets for impairment by determining whether the sum of the estimated undiscounted future cash flows attributable to a long-lived asset or asset group is less than the carrying value of the long-lived asset or asset group through a probability-weighted approach. In the event the carrying amount of the long-lived asset or asset group is not recoverable, an impairment loss is measured as the amount by which the carrying amount of the long-lived asset or asset group exceeds its fair value. ​ ​ All of the Company’s leases are classified as operating leases at inception. The Company leases certain branch locations and equipment; leased equipment is primarily Automated Teller Machines (ATMs). The Company records leases on the balance sheet in the form of a lease liability at the present value of future minimum payments under the terms of the lease and as a right-of-use asset equal to the lease liability adjusted for items such as deferred or prepaid rent, lease incentives, and any impairment of the right-of-use asset if it should arise. The discount rate used in determining the lease liability is based on the incremental borrowing rates the Company could obtain for similar loans as of the date of the commencement or renewal. The Company does not record short-term leases with an initial lease term of one year or less on the Consolidated Balance Sheets. ​ At lease inception, the Company determines the lease term by considering the noncancelable lease term and all option renewal periods the Company deems reasonably certain to renew. The lease term is also used to calculate the straight-line basis. Leasehold improvements are amortized over the shorter of the useful life or the estimated lease term. ​ Operating lease expense consists of a single lease cost allocated over the remaining lease term on a straight-line basis, and any impairment of the right-of-use asset. Lease expense is included in occupancy, furniture, and equipment on the Company’s Consolidated Statements of Income. The Company’s variable lease expense includes items such as common area maintenance, utilities, parking, and property taxes, which are reported within occupancy, furniture, and equipment on the Consolidated Statements of Income. ​ Other Real Estate Owned (“OREO”) ​ Mortgage Servicing Rights (“MSRs”) ​ Mortgage loans that the Company is servicing for others aggregated to $709.1 million and $737.2 million at December 31, 2024, and 2023, respectively. Mortgage loans that the Company is servicing for others are not included in the Consolidated Balance Sheets. Fees received in connection with servicing loans for others are recognized as earned. Loan servicing costs are charged to expense as incurred. ​ Servicing rights are recognized separately as assets when they are acquired through sales of loans and servicing rights are retained. Servicing rights are initially recorded at fair value with the effect recorded in net gains on sales of mortgage loans in the Consolidated Statements of Income. Fair value is based on market prices for comparable mortgage servicing contracts, when available, or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. The valuation model incorporates assumptions that market participants would use in estimating future net servicing income, such as the cost to service, the discount rate, the custodial earnings rate, an inflation rate, ancillary income, prepayment speeds and default rates and losses. ​ Servicing fee income, which is included in the Consolidated Statements of Income as mortgage servicing income, is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal or a fixed amount per loan and are recorded as income when earned. ​ Under the fair value measurement method, the Company measures mortgage servicing rights at fair value at each reporting date, reports changes in fair value of servicing assets in earnings in the period in which the changes occur, and includes these changes in MSRs mark to market values in the Consolidated Statements of Income. The fair values of MSRs are subject to significant fluctuations as a result of interest rates, changes in estimated and actual prepayment speeds and default rates and losses. ​ ​ ​ Transfers of Financial Assets – ​ Transfers of a portion of a loan must meet the criteria of a participating interest. If it does not meet the criteria of a participating interest, the transfer must be accounted for as a secured borrowing. In order to meet the criteria for a participating interest, all cash flows from the loan must be divided proportionately, the rights of each loan holder must have the same priority, and the loan holders must have no recourse to the transferor other than standard representations and warranties and no loan holder has the right to pledge or exchange the entire loan. ​ The Company sells financial assets in the normal course of business, the majority of which are related to residential mortgage loan sales through established programs, and commercial loan sales through participation agreements. In accordance with accounting guidance for asset transfers, the Company considers any ongoing involvement with transferred assets in determining whether the assets can be derecognized from the balance sheet. With the exception of servicing and certain performance-based guarantees, the Company’s continuing involvement with financial assets sold is minimal and generally limited to market customary representation and warranty clauses. ​ When the Company sells financial assets, it may retain servicing rights and/or other interests in the financial assets. The gain or loss on sale depends on the previous carrying amount of the transferred financial assets, the servicing right recognized, the consideration received, and any liabilities incurred in exchange for the transferred assets. Upon transfer, any servicing assets and other interests held by the Company are carried at the lower of cost or fair value, with the exception of mortgage servicing rights related to sales of residential mortgage loans, which are carried at fair value. ​ Bank-Owned Life Insurance (“BOLI”) ​ Goodwill and Core Deposit Intangible ​ The Company performed a qualitative assessment of goodwill as of November 30, 2024 which resulted in the fair value of the Company exceeding the carrying value; therefore, it was determined goodwill was not impaired at December 31, 2024. On November 30, 2023, the Company performed a qualitative assessment of goodwill from which we concluded it was more likely than not that goodwill was not impaired as of December 31, 2023. A quantitative assessment is performed every third year as a matter of periodic practice rather than as a response to a qualitative assessment or triggering event. ​ The core deposit intangible (“CDI”) is being amortized on an accelerated method over a ten year estimated useful life. As of December 31, 2024, CDI totaled $22.0 million compared to $11.2 million at December 31, 2023. The total CDI amount reflects the transaction with First Merchants Bank in 2024, the acquisition of West Suburban in 2021 as well as ABC Bank in 2018, and the Talmer Bank branch purchase in 2016. Total CDI amortization expense of $2.4 million, $2.5 million, and $2.6 million was recorded in 2024, 2023, and 2022, respectively. The expected future annual amortization expense for each of the next five years (2025-2029) is approximately $4.1 million, $3.7 million, $3.3 million, $2.9 million, and $2.6 million, respectively. ​ Debt Issuance Costs – ​ Loss Contingencies – ​ Noninterest Income ​ Wealth management ​ Service charges on deposits – includes fees and income received by the Company for performing various services, such as deposit account maintenance fees, overdraft coverage and processing fees, stop payment charges, and other deposit account related services. Revenue is recognized based on the service agreement in place, and is recorded when the service is provided to the customer. This item is net of any service charge refunds or return charge refunds. ​ Card related income ​ Advertising Costs ​ Equity Incentive Plan ​ Income Taxes ​ Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using the enacted tax rates that are expected to apply to taxable income in years in which those temporary differences are expected to be recovered or settled. ​ As of December 31, 2024 and 2023, the Company evaluated tax positions taken for filings with the Internal Revenue Service and all state jurisdictions in which it operates. The Company believes that income tax filing positions will be sustained under examination and does not anticipate any adjustments that would result in a material adverse effect on the Company’s financial condition, results of operations, or cash flows. Accordingly, the Company has not recorded any material reserves or related accruals for interest and penalties for uncertain tax positions at December 31, 2024 and 2023. The Company is no longer subject to examination by the Internal Revenue Service for tax years prior to 2021. State statutes vary, but generally, the Company is no longer subject to state tax examinations for tax years ended prior to 2020. ​ Earnings Per Common Share (“EPS”) ​ ​ Treasury Stock ​ Mortgage Banking Derivatives – As part of the ongoing residential mortgage business, the Company enters into mortgage banking derivatives such as forward contracts and interest rate lock commitments. The derivatives and loans held-for-sale are carried at fair value with the changes in fair value recorded in current earnings. The net gain or loss on mortgage banking derivatives is included in net gains on sales of loans in the Consolidated Statements of Income . ​ Derivative Financial Instruments ​ If it is determined that the derivative instrument is not highly effective as a hedge, hedge accounting is discontinued, and the adjustment to fair value of the derivative instrument is recorded in earnings. For a derivative used to hedge changes in cash flows associated with forecasted transactions, the gain or loss on the effective portion of the derivative is deferred and reported as a component of accumulated other comprehensive income, which is a component of stockholders’ equity, until such time the hedged transaction affects earnings. For derivative instruments not accounted for as hedges, changes in fair value are recognized in noninterest income/expense. Counterparty risk with loan customers is managed through loan covenant agreements and, as such, does not have a significant impact on the fair value of the swaps. Counterparty risk with other banks is managed through bilateral collateralization agreements. Deferred gains and losses from derivatives not accounted for as hedges and that are terminated are amortized over the shorter of the original remaining term of the derivative or the remaining life of the underlying asset or liability. ​ Comprehensive Income ​ Recent Accounting Pronouncements : ​ ASU 2023-06 ​ ASU 2023-09 ​ ​ ASU 2024-01 ​ ASU 2024-02 ​ ASU 2024-03 ​ Subsequent Events ​ On January 21, 2025 , the Company’s Board of Directors declared a cash dividend of $0.06 per share payable on February 10, 2025 , to stockholders of record as of January 31, 2025 . ​ On February 24, 2025, Old Second and Bancorp Financial, Inc. (“Bancorp Financial”) entered into an Agreement and Plan of Merger (the “merger agreement”). The merger agreement provides that, upon the terms and subject to the conditions set forth therein, Bancorp Financial will merge with and into Old Second, with Old Second continuing as the surviving entity (the “merger”). Immediately following the merger, Evergreen Bank Group (“Evergreen Bank”), an Illinois state-chartered bank and wholly-owned subsidiary of Bancorp Financial, will merge with and into Old Second National Bank, a national banking association and wholly-owned subsidiary of Old Second, with Old Second National Bank continuing as the surviving bank (the “bank merger”). ​ Subject to the terms and conditions of the merger agreement, at the effective time of the merger, each Bancorp Financial stockholder will receive 2.5814 shares of Old Second common stock and $15.93 in cash for each share of Bancorp Financial common stock owned by the stockholder. Holders of Bancorp Financial common stock, subject to certain exceptions, will also be entitled to receive cash in lieu of fractional shares of Old Second common stock. ​ The parties to the merger expect to complete the merger in the third quarter of 2025, subject to satisfaction of closing conditions, including receipt of customary required regulatory approvals and the approval of the merger agreement by the Bancorp Financial stockholders.

Acquisition

Acquisition	12 Months Ended
	Dec. 31, 2024
Acquisition
Acquisition	Note 2: Acquisition ​ On December 6, 2024, the Company completed its purchase of five Illinois branch locations in the southeast Chicago metropolitan statistical area from First Merchants Bank, the wholly owned subsidiary of First Merchants Corporation. This acquisition brought increased scale as the Company expanded its current branch network in the Chicago market. At closing, the Company recorded $24.8 million of assets, including $7.1 million of loans and $3.9 million of premises and equipment, and $268.0 million of deposits, net of fair value adjustments. ​ The Company recorded the estimate of fair value based on initial valuations available at December 6, 2024. Estimated fair values are subject to adjustment for up to one year after December 6, 2024. Based on current valuations, $13.3 million of core deposit intangible was recorded. Goodwill of $6.8 million was ultimately recorded from the branch purchase transaction. None of the $6.8 million of goodwill recorded is expected to be deductible for income tax purposes. ​ The following table provides the purchase price allocation as of the December 6, 2024 branch purchase transaction with First Merchants Bank, including the assets acquired and liabilities assumed at their estimated fair values as of that date, as recorded by the Company. ​ ​ ​ ​ ​ First Merchants Transaction Summary As of Date of Transaction ​ ​ ​ ​ ​ ​ December 6, 2024 Assets ​ ​ ​ Cash and due from banks ​ $ 419 Loans, net of purchase accounting adjustments ​ ​ 7,149 Premises and equipment ​ ​ 3,934 Core deposit intangible ​ ​ 13,254 Other assets ​ ​ 19 Total assets ​ $ 24,775 ​ ​ ​ ​ Liabilities ​ ​ ​ Noninterest bearing demand ​ $ 26,497 Savings, NOW and money market ​ ​ 157,126 Time ​ ​ 84,373 Total deposits ​ ​ 267,996 Other liabilities ​ ​ 585 Total liabilities ​ ​ 268,581 ​ ​ ​ ​ Cash consideration received ​ ​ (237,023) Total liabilities assumed and cash consideration received for transaction ​ $ 31,558 Goodwill ​ $ 6,783 ​ Expenses related to the First Merchants Bank branch transaction totaled $1.9 million during the year ended December 31, 2024, and are reported within noninterest expense based on the line items impacted, which are primarily salaries and employee benefits, occupancy, furniture and equipment, computer and data processing, legal fees, and other expense in the Consolidated Statements of Income. ​ All acquired loans are considered non-PCD as none of the loans met the definition of a purchase credit deteriorated loan.

Cash and Due from Banks

Cash and Due from Banks	12 Months Ended
	Dec. 31, 2024
Cash and Due from Banks.
Cash and Due from Banks	Note 3: Cash and Due from Banks ​ Total cash and cash equivalents were $99.3 million and $100.1 million at December 31, 2024 and 2023, respectively . ​ The nature of the Company’s business requires that it maintain amounts with other banks and federal funds which, at times, may exceed federally insured limits. Management monitors these correspondent relationships, and the Company has not experienced any losses in such accounts. ​

Securities

Securities	12 Months Ended
	Dec. 31, 2024
Securities
Securities	​ Note 4: Securities ​ The following table summarizes the amortized cost and fair value of the securities portfolio at December 31, 2024 and 2023 and the corresponding amounts of gross unrealized gains and losses were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross ​ Gross ​ ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair December 31, 2024 Cost 1 Gains Losses ​ Value Securities available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury ​ $ 193,902 ​ $ 700 ​ $ (459) ​ $ 194,143 U.S. government agencies ​ ​ 39,202 ​ ​ - ​ ​ (1,388) ​ ​ 37,814 U.S. government agencies mortgage-backed ​ ​ 112,241 ​ ​ - ​ ​ (11,964) ​ ​ 100,277 States and political subdivisions ​ ​ 226,969 ​ ​ 264 ​ ​ (11,777) ​ ​ 215,456 Collateralized mortgage obligations ​ ​ 411,170 ​ ​ 647 ​ ​ (43,201) ​ ​ 368,616 Asset-backed securities ​ ​ 64,215 ​ ​ 69 ​ ​ (1,981) ​ ​ 62,303 Collateralized loan obligations ​ ​ 182,629 ​ ​ 472 ​ ​ (9) ​ ​ 183,092 Total securities available-for-sale ​ $ 1,230,328 ​ $ 2,152 ​ $ (70,779) ​ $ 1,161,701 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross ​ Gross ​ ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair December 31, 2023 Cost 1 Gains Losses ​ Value Securities available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury ​ $ 174,602 ​ $ - ​ $ (5,028) ​ $ 169,574 U.S. government agencies ​ ​ 60,011 ​ ​ - ​ ​ (3,052) ​ ​ 56,959 U.S. government agencies mortgage-backed ​ ​ 118,492 ​ ​ - ​ ​ (12,122) ​ ​ 106,370 States and political subdivisions ​ ​ 236,072 ​ ​ 1,325 ​ ​ (10,332) ​ ​ 227,065 Collateralized mortgage obligations ​ ​ 442,987 ​ ​ 421 ​ ​ (50,864) ​ ​ 392,544 Asset-backed securities ​ ​ 71,616 ​ ​ 42 ​ ​ (3,222) ​ ​ 68,436 Collateralized loan obligations ​ ​ 173,201 ​ ​ 30 ​ ​ (1,350) ​ ​ 171,881 Total securities available-for-sale ​ $ 1,276,981 ​ $ 1,818 ​ $ (85,970) ​ $ 1,192,829 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1 Excludes interest receivable of $7.1 million and $6.6 million at December 31, 2024 and December 31, 2023, respectively, that is recorded in other assets on the Consolidated Balance Sheets. ​ FHLBC stock was $4.5 million and $18.5 million at December 31, 2024 and December 31, 2023, respectively. FRBC stock was $14.9 million at December 31, 2024 and December 31, 2023. Our FHLBC stock is necessary to maintain access to FHLBC advances. ​ Securities valued at $717.5 million as of December 31, 2024, were pledged to secure deposits and borrowings, and for other purposes, a decrease from $810.2 million at year-end 2023. ​ The fair value, amortized cost and weighted average yield of debt securities at December 31, 2024 by contractual maturity, were as follows in the table below. Securities not due at a single maturity date are shown separately. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ ​ Amortized ​ Average ​ ​ Fair ​ Securities available-for-sale Cost Yield ​ Value Due in one year or less ​ $ 94,725 ​ 2.94 % ​ $ 94,598 ​ Due after one year through five years ​ ​ 154,689 ​ 3.64 ​ ​ ​ 153,679 ​ Due after five years through ten years ​ ​ 100,601 ​ 2.91 ​ ​ ​ 94,215 ​ Due after ten years ​ ​ 110,058 ​ 3.20 ​ ​ ​ 104,921 ​ ​ ​ ​ 460,073 ​ 3.23 ​ ​ ​ 447,413 ​ Mortgage-backed and collateralized mortgage obligations ​ ​ 523,411 ​ 2.57 ​ ​ ​ 468,893 ​ Asset-backed securities ​ ​ 64,215 ​ 3.70 ​ ​ ​ 62,303 ​ Collateralized loan obligations ​ ​ 182,629 ​ 6.08 ​ ​ ​ 183,092 ​ Total securities available-for-sale ​ $ 1,230,328 ​ 3.40 % ​ $ 1,161,701 ​ ​ ​ As of December 31, 2024, the Company has no securities issued from one originator, other than the U.S. Government and its agencies, that individually amounted to over 10% of the Company’s stockholders equity. ​ Securities with unrealized losses with no corresponding allowance for credit losses at December 31, 2024 and 2023 aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, were as follows (in thousands except for number of securities): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ 12 months or more ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ in an unrealized loss position ​ in an unrealized loss position ​ Total ​ ​ Number of ​ Unrealized ​ Fair ​ Number of ​ Unrealized ​ Fair ​ Number of ​ Unrealized ​ Fair Securities available-for-sale Securities Losses Value Securities Losses Value Securities Losses Value U.S. Treasuries ​ 4 ​ $ 72 ​ $ 49,788 ​ 1 ​ $ 387 ​ $ 49,547 ​ 5 ​ $ 459 ​ $ 99,335 U.S. government agencies ​ - ​ ​ - ​ ​ - ​ 8 ​ ​ 1,388 ​ ​ 37,814 ​ 8 ​ ​ 1,388 ​ ​ 37,814 U.S. government agencies mortgage-backed ​ 1 ​ ​ 447 ​ ​ 10,296 ​ 128 ​ ​ 11,517 ​ ​ 89,981 ​ 129 ​ ​ 11,964 ​ ​ 100,277 States and political subdivisions ​ 31 ​ ​ 455 ​ ​ 85,457 ​ 27 ​ ​ 11,322 ​ ​ 111,308 ​ 58 ​ ​ 11,777 ​ ​ 196,765 Collateralized mortgage obligations ​ 3 ​ ​ 24 ​ ​ 5,107 ​ 139 ​ ​ 43,177 ​ ​ 328,708 ​ 142 ​ ​ 43,201 ​ ​ 333,815 Asset-backed securities ​ 2 ​ ​ 4 ​ ​ 1,068 ​ 13 ​ ​ 1,977 ​ ​ 50,198 ​ 15 ​ ​ 1,981 ​ ​ 51,266 Collateralized loan obligations ​ 4 ​ ​ 8 ​ ​ 31,440 ​ 1 ​ ​ 1 ​ ​ 227 ​ 5 ​ ​ 9 ​ ​ 31,667 Total securities available-for-sale ​ 45 ​ $ 1,010 ​ $ 183,156 ​ 317 ​ $ 69,769 ​ $ 667,783 ​ 362 ​ $ 70,779 ​ $ 850,939 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ 12 months or more ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ in an unrealized loss position ​ in an unrealized loss position ​ Total ​ ​ Number of ​ Unrealized ​ ​ Fair ​ Number of ​ Unrealized ​ ​ Fair ​ Number of ​ Unrealized ​ ​ Fair Securities available-for-sale Securities Losses ​ Value Securities Losses ​ Value Securities Losses ​ Value U.S. Treasuries ​ - ​ $ - ​ $ - ​ 4 ​ $ 5,028 ​ $ 169,574 ​ 4 ​ $ 5,028 ​ $ 169,574 U.S. government agencies ​ - ​ ​ - ​ ​ - ​ 9 ​ ​ 3,052 ​ ​ 56,959 ​ 9 ​ ​ 3,052 ​ ​ 56,959 U.S. government agencies mortgage-backed ​ - ​ ​ - ​ ​ - ​ 128 ​ ​ 12,122 ​ ​ 106,370 ​ 128 ​ ​ 12,122 ​ ​ 106,370 States and political subdivisions ​ 12 ​ ​ 137 ​ ​ 27,974 ​ 25 ​ ​ 10,195 ​ ​ 106,138 ​ 37 ​ ​ 10,332 ​ ​ 134,112 Collateralized mortgage obligations ​ 2 ​ ​ 8 ​ ​ 734 ​ 143 ​ ​ 50,856 ​ ​ 376,236 ​ 145 ​ ​ 50,864 ​ ​ 376,970 Asset-backed securities ​ - ​ ​ - ​ ​ - ​ 19 ​ ​ 3,222 ​ ​ 63,941 ​ 19 ​ ​ 3,222 ​ ​ 63,941 Collateralized loan obligations ​ - ​ ​ - ​ ​ - ​ 25 ​ ​ 1,350 ​ ​ 150,902 ​ 25 ​ ​ 1,350 ​ ​ 150,902 Total securities available-for-sale ​ 14 ​ $ 145 ​ $ 28,708 ​ 353 ​ $ 85,825 ​ $ 1,030,120 ​ 367 ​ $ 85,970 ​ $ 1,058,828 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Available-for-sale debt securities in unrealized loss positions are evaluated for allowance related to credit losses at least quarterly. he analysis consists of screening all securities to determine if the bonds have market value loss exceeding 5% of book value and if that loss exceeds $200,000 . Two other aspects of each security are assessed. The first is whether a security carries a government guarantee. If the security is backed by a 100% U.S. Government or U.S. Agency guarantee, then no allowance for credit loss would be considered necessary, since ultimately principal and interest of the investment would be paid. For securities that carried a U.S. Government guarantee of less than 100% , an allowance for credit loss analysis is performed. In the case of a partial government guarantee, the loss amount is assumed to be the percentage not guaranteed multiplied by the gain or loss on the position. In addition, a calculation is performed to estimate the amount of value change attributable to movements in interest rates. If the devaluation of a security is due to rate changes, then no allowance would be considered necessary. However, if a payment collected on a particular bond is less than the expected amount, individual credit analysis is conducted on that position. Furthermore, for positions whose market valuations are not directly attributable to movements in interest rates, even if all scheduled payments have been received, credit analysis is performed on each position. ​ The following table presents net realized gains (losses) on securities available-for-sale for the years ended: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ ​ December 31, ​ Securities available-for-sale 2024 2023 2022 ​ Proceeds from sales of securities ​ $ 5,331 ​ $ 205,738 ​ $ 30,981 ​ Gross realized gains on securities ​ 1 ​ - ​ - ​ Gross realized losses on securities ​ (1) ​ (4,148) ​ (944) ​ Net realized losses ​ $ — ​ $ (4,148) ​ $ (944) ​ Income tax benefit on net realized losses ​ $ — ​ $ 1,117 ​ $ 265 ​ Effective tax rate applied ​ ​ N/M % ​ 26.9 % ​ 28.1 % ​ N/M – Not Meaningful ​ ​

Loans and Allowance for Credit

Loans and Allowance for Credit Losses on Loans	12 Months Ended
	Dec. 31, 2024
Loans and Allowance for Credit Losses on Loans
Loans and Allowance for Credit Losses on Loans	Note 5: Loans and Allowance for Credit Losses on Loans ​ The composition of loans by portfolio segment as of December 31, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 December 31, 2023 Commercial ​ $ 800,476 ​ $ 841,697 Leases ​ ​ 491,748 ​ ​ 398,223 Commercial real estate – investor ​ ​ 1,078,829 ​ ​ 1,034,424 Commercial real estate – owner occupied ​ ​ 683,283 ​ ​ 796,538 Construction ​ ​ 201,716 ​ ​ 165,380 Residential real estate – investor ​ ​ 49,598 ​ ​ 52,595 Residential real estate – owner occupied ​ ​ 206,949 ​ ​ 226,248 Multifamily ​ ​ 351,325 ​ ​ 401,696 HELOC ​ ​ 103,388 ​ ​ 103,237 Other 1 ​ ​ 14,024 ​ ​ 22,915 Total loans ​ ​ 3,981,336 ​ ​ 4,042,953 Allowance for credit losses on loans ​ ​ (43,619) ​ ​ (44,264) Net loans 2 ​ $ 3,937,717 ​ $ 3,998,689 ​ 1 Unless otherwise noted, the “Other” segment includes consumer loans and overdrafts in this table and in subsequent tables within Note 5 - Loans and Allowance for Credit Losses on Loans. ​ 2 Excludes accrued interest receivable of $17.5 million and $20.5 million at December 31, 2024 and December 31, 2023, respectively, which is recorded in other assets on the Consolidated Balance Sheets. ​ The methodologies used for calculating the ACL on each loan segment include (i) a migration analysis for commercial, CRE owner occupied, CRE investor, and multifamily segments; (ii) a static pool analysis for lease financing receivables, construction, residential investor, residential owner occupied and the HELOC segments; and (iii) a WARM (weighted average remaining maturity) methodology is used for consumer segments. The forecast period used for each segment calculation was one year, with an immediate reversion to historical loss rates following this one year period. The economic factors management has selected include the civilian unemployment rate and real gross domestic product supplemented with local unemployment factors. These factors are evaluated and updated quarterly. Additionally, management uses qualitative adjustments to the loss estimates in certain cases as determined necessary. These qualitative adjustments are applied by pooled loan segment and have been made for both increased and decreased risk due to loan quality trends, collateral risk, or other risks management determines are not adequately captured in loss estimation. Loans that do not share risk characteristics are evaluated on an individual basis and excluded from the pooled loan evaluation. The amount of expected loss for loans analyzed individually is determined by discounted cash flow or the fair value of the underlying collateral less applicable costs to sell. ​ It is the policy of the Company to review each prospective credit prior to making a loan in order to determine if an adequate level of security or collateral has been obtained. The type of collateral, when required, will vary from liquid assets to real estate. The Company’s access to collateral, in the event of borrower default, is assured through adherence to lending laws, the Company’s lending standards and credit monitoring procedures. Although the Bank makes loans primarily within its market area, there are no significant concentrations of loans where the customers’ ability to honor loan terms is dependent upon a single economic sector. The real estate related categories above represent 67.2% and 68.8% of the portfolio at December 31, 2024 and December 31, 2023, respectively, and include a mix of owner and non-owner occupied commercial real estate, residential, construction and multifamily loans. ​ ​ ​ The following tables represent the activity in the ACL for loans for the years ended December 31, 2024, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning ​ Provision for ​ ​ ​ ​ ​ Ending ​ ​ Balance ​ (Release of) ​ ​ ​ ​ ​ Balance Allowance for credit losses January 1, 2024 Credit Losses Charge-offs Recoveries December 31, 2024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ $ 3,998 ​ $ 12,352 ​ $ 8,686 ​ $ 149 ​ $ 7,813 Leases ​ ​ 2,952 ​ ​ (770) ​ ​ 149 ​ ​ 103 ​ ​ 2,136 Commercial real estate – investor ​ ​ 17,105 ​ ​ 1,594 ​ ​ 4,596 ​ ​ 425 ​ ​ 14,528 Commercial real estate – owner occupied ​ ​ 12,280 ​ ​ (997) ​ ​ 5,154 ​ ​ 3,907 ​ ​ 10,036 Construction ​ ​ 1,038 ​ ​ 2,543 ​ ​ - ​ ​ - ​ ​ 3,581 Residential real estate – investor ​ ​ 669 ​ ​ (141) ​ ​ - ​ ​ 25 ​ ​ 553 Residential real estate – owner occupied ​ ​ 1,821 ​ ​ (106) ​ ​ 242 ​ ​ 36 ​ ​ 1,509 Multifamily ​ ​ 2,728 ​ ​ (852) ​ ​ - ​ ​ - ​ ​ 1,876 HELOC ​ ​ 1,656 ​ ​ (169) ​ ​ - ​ ​ 91 ​ ​ 1,578 Other ​ ​ 17 ​ ​ 130 ​ ​ 284 ​ ​ 146 ​ ​ 9 Total ​ $ 44,264 ​ $ 13,584 ​ $ 19,111 ​ $ 4,882 ​ $ 43,619 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning ​ Provision for ​ ​ ​ ​ ​ ​ Ending Allowance for credit losses ​ Balance ​ (Release of) ​ ​ ​ ​ ​ ​ Balance ​ January 1, 2023 Credit Losses Charge-offs Recoveries ​ December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ $ 11,968 ​ $ (7,717) ​ $ 885 ​ $ 632 ​ $ 3,998 Leases ​ ​ 2,865 ​ ​ 850 ​ ​ 882 ​ ​ 119 ​ ​ 2,952 Commercial real estate – investor ​ ​ 10,674 ​ ​ 18,170 ​ ​ 11,816 ​ ​ 77 ​ ​ 17,105 Commercial real estate – owner occupied ​ ​ 15,001 ​ ​ 7,941 ​ ​ 10,691 ​ ​ 29 ​ ​ 12,280 Construction ​ ​ 1,546 ​ ​ (608) ​ ​ - ​ ​ 100 ​ ​ 1,038 Residential real estate – investor ​ ​ 768 ​ ​ (129) ​ ​ - ​ ​ 30 ​ ​ 669 Residential real estate – owner occupied ​ ​ 2,046 ​ ​ (304) ​ ​ - ​ ​ 79 ​ ​ 1,821 Multifamily ​ ​ 2,453 ​ ​ 275 ​ ​ - ​ ​ - ​ ​ 2,728 HELOC ​ ​ 1,806 ​ ​ (255) ​ ​ - ​ ​ 105 ​ ​ 1,656 Other ​ ​ 353 ​ ​ (137) ​ ​ 368 ​ ​ 169 ​ ​ 17 Total ​ $ 49,480 ​ $ 18,086 ​ $ 24,642 ​ $ 1,340 ​ $ 44,264 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning ​ Provision for ​ ​ ​ ​ ​ ​ ​ ​ Ending Allowance for credit losses ​ Balance ​ (Release of) ​ ​ ​ ​ ​ ​ ​ ​ Balance ​ January 1, 2022 Credit Losses ​ Charge-offs ​ Recoveries ​ December 31, 2022 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ $ 11,751 ​ $ 273 ​ $ 151 ​ $ 95 ​ $ 11,968 Leases ​ ​ 3,480 ​ ​ (246) ​ ​ 371 ​ ​ 2 ​ ​ 2,865 Commercial real estate – investor ​ ​ 10,795 ​ ​ 1,199 ​ ​ 1,401 ​ ​ 81 ​ ​ 10,674 Commercial real estate – owner occupied ​ ​ 4,913 ​ ​ 10,117 ​ ​ 133 ​ ​ 104 ​ ​ 15,001 Construction ​ ​ 3,373 ​ ​ (1,827) ​ ​ - ​ ​ - ​ ​ 1,546 Residential real estate – investor ​ ​ 760 ​ ​ (22) ​ ​ - ​ ​ 30 ​ ​ 768 Residential real estate – owner occupied ​ ​ 2,832 ​ ​ (1,010) ​ ​ 2 ​ ​ 226 ​ ​ 2,046 Multifamily ​ ​ 3,675 ​ ​ (1,285) ​ ​ - ​ ​ 63 ​ ​ 2,453 HELOC ​ ​ 2,510 ​ ​ (844) ​ ​ - ​ ​ 140 ​ ​ 1,806 Other ​ ​ 192 ​ ​ 395 ​ ​ 402 ​ ​ 168 ​ ​ 353 Total ​ $ 44,281 ​ $ 6,750 ​ $ 2,460 ​ $ 909 ​ $ 49,480 ​ ​ ​ The following table presents the collateral dependent loans and the related ACL allocated by segment of loans as of December 31: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Accounts ​ ​ ​ ​ ​ ​ ​ ACL December 31, 2024 ​ Real Estate ​ Receivable ​ Equipment ​ Other ​ Total ​ Allocation Commercial ​ $ - ​ $ 6,491 ​ $ - ​ $ - ​ $ 6,491 ​ $ 2,448 Leases ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Commercial real estate – investor ​ ​ 1,644 ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,644 ​ ​ - Commercial real estate – owner occupied ​ ​ 10,018 ​ ​ - ​ ​ - ​ ​ - ​ ​ 10,018 ​ ​ 3,951 Construction ​ ​ 5,800 ​ ​ - ​ ​ - ​ ​ - ​ ​ 5,800 ​ ​ 792 Residential real estate – investor ​ ​ 404 ​ ​ - ​ ​ - ​ ​ - ​ ​ 404 ​ ​ - Residential real estate – owner occupied ​ ​ 1,056 ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,056 ​ ​ - Multifamily ​ ​ 836 ​ ​ - ​ ​ - ​ ​ - ​ ​ 836 ​ ​ - HELOC ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Other ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Total ​ $ 19,758 ​ $ 6,491 ​ $ - ​ $ - ​ $ 26,249 ​ $ 7,191 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Accounts ​ ​ ​ ​ ​ ​ ​ ACL December 31, 2023 ​ Real Estate ​ Receivable ​ Equipment ​ Other ​ Total ​ Allocation Commercial ​ $ 837 ​ $ 797 ​ $ - ​ $ - ​ $ 1,634 ​ $ 2 Leases ​ ​ - ​ ​ - ​ ​ 321 ​ ​ - ​ ​ 321 ​ ​ 320 Commercial real estate – investor ​ ​ 15,735 ​ ​ - ​ ​ - ​ ​ - ​ ​ 15,735 ​ ​ 3,656 Commercial real estate – owner occupied ​ ​ 34,894 ​ ​ - ​ ​ - ​ ​ - ​ ​ 34,894 ​ ​ 3,900 Construction ​ ​ 7,162 ​ ​ - ​ ​ - ​ ​ - ​ ​ 7,162 ​ ​ - Residential real estate – investor ​ ​ 422 ​ ​ - ​ ​ - ​ ​ - ​ ​ 422 ​ ​ - Residential real estate – owner occupied ​ ​ 1,506 ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,506 ​ ​ - Multifamily ​ ​ 1,402 ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,402 ​ ​ - HELOC ​ ​ 39 ​ ​ - ​ ​ - ​ ​ - ​ ​ 39 ​ ​ - Other ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Total ​ $ 61,997 ​ $ 797 ​ $ 321 ​ $ - ​ $ 63,115 ​ $ 7,878 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Aged analysis of past due loans by class of loans as of December 31, 2024 were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 90 days or ​ ​ ​ ​ ​ ​ ​ ​ 90 Days or ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Greater Past ​ ​ 30-59 Days ​ 60-89 Days ​ Greater Past ​ Total Past ​ ​ ​ ​ ​ ​ ​ Due and December 31, 2024 ​ Past Due Past Due Due Due Current Total Loans Accruing Commercial ​ $ 219 ​ $ 95 ​ $ 6,963 ​ $ 7,277 ​ $ 793,199 ​ $ 800,476 ​ $ 1,397 Leases ​ ​ 1,438 ​ ​ 372 ​ ​ 352 ​ ​ 2,162 ​ ​ 489,586 ​ ​ 491,748 ​ ​ - Commercial real estate – investor ​ ​ 2,021 ​ ​ 402 ​ ​ - ​ ​ 2,423 ​ ​ 1,076,406 ​ ​ 1,078,829 ​ ​ - Commercial real estate – owner occupied ​ ​ 1,123 ​ ​ 2,479 ​ ​ 43 ​ ​ 3,645 ​ ​ 679,638 ​ ​ 683,283 ​ ​ - Construction ​ ​ - ​ ​ - ​ ​ 5,799 ​ ​ 5,799 ​ ​ 195,917 ​ ​ 201,716 ​ ​ - Residential real estate – investor ​ ​ 763 ​ ​ - ​ ​ 439 ​ ​ 1,202 ​ ​ 48,396 ​ ​ 49,598 ​ ​ - Residential real estate – owner occupied ​ ​ 2,489 ​ ​ 90 ​ ​ 509 ​ ​ 3,088 ​ ​ 203,861 ​ ​ 206,949 ​ ​ - Multifamily ​ ​ - ​ ​ 233 ​ ​ 1,040 ​ ​ 1,273 ​ ​ 350,052 ​ ​ 351,325 ​ ​ - HELOC ​ ​ 109 ​ ​ 74 ​ ​ 202 ​ ​ 385 ​ ​ 103,003 ​ ​ 103,388 ​ ​ 39 Other ​ ​ 13 ​ ​ 10 ​ ​ - ​ ​ 23 ​ ​ 14,001 ​ ​ 14,024 ​ ​ - Total ​ $ 8,175 ​ $ 3,755 ​ $ 15,347 ​ $ 27,277 ​ $ 3,954,059 ​ $ 3,981,336 ​ $ 1,436 ​ Aged analysis of past due loans by class of loans as of December 31, 2023 were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 90 days or ​ ​ ​ ​ ​ ​ ​ ​ 90 Days or ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Greater Past ​ ​ 30-59 Days ​ 60-89 Days ​ Greater Past ​ Total Past ​ ​ ​ ​ ​ ​ ​ Due and December 31, 2023 ​ Past Due Past Due Due Due Current Total Loans Accruing Commercial ​ $ 982 ​ $ - ​ $ 1,228 ​ $ 2,210 ​ $ 839,487 ​ $ 841,697 ​ $ 1,155 Leases ​ ​ 599 ​ ​ - ​ ​ 347 ​ ​ 946 ​ ​ 397,277 ​ ​ 398,223 ​ ​ - Commercial real estate – investor ​ ​ 1,209 ​ ​ - ​ ​ 6,087 ​ ​ 7,296 ​ ​ 1,027,128 ​ ​ 1,034,424 ​ ​ - Commercial real estate – owner occupied ​ ​ 2,103 ​ ​ 3,726 ​ ​ 15,645 ​ ​ 21,474 ​ ​ 775,064 ​ ​ 796,538 ​ ​ - Construction ​ ​ 2,540 ​ ​ 307 ​ ​ 7,161 ​ ​ 10,008 ​ ​ 155,372 ​ ​ 165,380 ​ ​ - Residential real estate – investor ​ ​ 540 ​ ​ 579 ​ ​ 168 ​ ​ 1,287 ​ ​ 51,308 ​ ​ 52,595 ​ ​ - Residential real estate – owner occupied ​ ​ 553 ​ ​ 125 ​ ​ 1,944 ​ ​ 2,622 ​ ​ 223,626 ​ ​ 226,248 ​ ​ - Multifamily ​ ​ 1,085 ​ ​ - ​ ​ 233 ​ ​ 1,318 ​ ​ 400,378 ​ ​ 401,696 ​ ​ - HELOC ​ ​ 565 ​ ​ 1,396 ​ ​ 269 ​ ​ 2,230 ​ ​ 101,007 ​ ​ 103,237 ​ ​ 41 Other ​ ​ - ​ ​ 1 ​ ​ - ​ ​ 1 ​ ​ 22,914 ​ ​ 22,915 ​ ​ - Total ​ $ 10,176 ​ $ 6,134 ​ $ 33,082 ​ $ 49,392 ​ $ 3,993,561 ​ $ 4,042,953 ​ $ 1,196 ​ ​ ​ The following table presents all nonaccrual loans and loans on nonaccrual for which there was no related allowance for credit losses as of: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nonaccrual loan detail December 31, 2024 With no ACL ​ December 31, 2023 With no ACL Commercial ​ $ 5,591 ​ $ 497 ​ $ 870 ​ $ 870 Leases ​ ​ 523 ​ ​ 523 ​ ​ 639 ​ ​ 318 Commercial real estate – investor ​ ​ 1,981 ​ ​ 1,981 ​ ​ 16,572 ​ ​ 8,926 Commercial real estate – owner occupied ​ ​ 10,604 ​ ​ 1,407 ​ ​ 34,946 ​ ​ 8,429 Construction ​ ​ 5,800 ​ ​ - ​ ​ 7,162 ​ ​ 7,162 Residential real estate – investor ​ ​ 1,158 ​ ​ 1,158 ​ ​ 1,331 ​ ​ 1,331 Residential real estate – owner occupied ​ ​ 1,653 ​ ​ 1,653 ​ ​ 3,078 ​ ​ 3,078 Multifamily ​ ​ 1,165 ​ ​ 1,165 ​ ​ 1,775 ​ ​ 1,775 HELOC ​ ​ 366 ​ ​ 366 ​ ​ 1,210 ​ ​ 1,210 Other ​ ​ 10 ​ ​ 10 ​ ​ - ​ ​ - Total ​ $ 28,851 ​ $ 8,760 ​ $ 67,583 ​ $ 33,099 ​ The Company recognized $815,000 and $1.9 million of interest on nonaccrual loans during the years ended December 31, 2024 and 2023, respectively. The amount of accrued interest reversed against interest income totaled $4.2 million and $1.3 million for the years ended December 31, 2024 and 2023, respectively. ​ Credit Quality Indicators: ​ The Company categorizes loans into credit risk categories based on current financial information, overall debt service coverage, comparison against industry averages, historical payment experience, and current economic trends. This analysis includes loans with outstanding balances or commitments greater than $50,000 and excludes homogeneous loans such as home equity lines of credit and residential mortgages. Loans with a classified risk rating are reviewed quarterly regardless of size or loan type. The Company uses the following definitions for classified risk ratings: ​ Special Mention. ​ Substandard. ​ Doubtful. ​ Credits that are not covered by the definitions above are pass credits, which are not considered to be adversely rated. ​ ​ ​ Credit quality indicators by class of loans as of December 31, 2024 were as follows in the vintage table below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 2021 2020 Prior Revolving Loans Revolving Loans Converted To Term Loans Total Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 299,863 ​ $ 176,549 ​ $ 56,619 ​ $ 18,679 ​ $ 4,999 ​ $ 6,527 ​ $ 201,514 ​ $ 1,279 ​ $ 766,029 Special Mention ​ ​ 3,864 ​ ​ 1,629 ​ ​ 127 ​ ​ 176 ​ ​ - ​ ​ - ​ ​ 3,903 ​ ​ - ​ ​ 9,699 Substandard ​ ​ - ​ ​ 14 ​ ​ 4,169 ​ ​ 77 ​ ​ - ​ ​ - ​ ​ 19,102 ​ ​ - ​ ​ 23,362 Doubtful ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,386 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,386 Total commercial ​ ​ 303,727 ​ ​ 178,192 ​ ​ 60,915 ​ ​ 20,318 ​ ​ 4,999 ​ ​ 6,527 ​ ​ 224,519 ​ ​ 1,279 ​ ​ 800,476 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Leases ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 239,664 ​ ​ 151,372 ​ $ 66,379 ​ ​ 24,546 ​ ​ 6,145 ​ ​ 2,298 ​ ​ - ​ ​ - ​ ​ 490,404 Special Mention ​ ​ - ​ ​ - ​ ​ 821 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 821 Substandard ​ ​ - ​ ​ - ​ ​ 523 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 523 Total leases ​ ​ 239,664 ​ ​ 151,372 ​ ​ 67,723 ​ ​ 24,546 ​ ​ 6,145 ​ ​ 2,298 ​ ​ - ​ ​ - ​ ​ 491,748 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate – investor ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 243,983 ​ ​ 159,008 ​ ​ 305,506 ​ ​ 191,651 ​ ​ 90,245 ​ ​ 67,143 ​ ​ 6,804 ​ ​ - ​ ​ 1,064,340 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ 335 ​ ​ 1,645 ​ ​ - ​ ​ - ​ ​ - ​ ​ 12,509 ​ ​ - ​ ​ - ​ ​ 14,489 Total commercial real estate – investor ​ ​ 244,318 ​ ​ 160,653 ​ ​ 305,506 ​ ​ 191,651 ​ ​ 90,245 ​ ​ 79,652 ​ ​ 6,804 ​ ​ - ​ ​ 1,078,829 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate – owner occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 91,012 ​ ​ 114,255 ​ ​ 133,488 ​ ​ 121,652 ​ ​ 77,919 ​ ​ 82,820 ​ ​ 14,284 ​ ​ - ​ ​ 635,430 Special Mention ​ ​ - ​ ​ 1,162 ​ ​ 7,908 ​ ​ 7,500 ​ ​ 3,033 ​ ​ 631 ​ ​ - ​ ​ - ​ ​ 20,234 Substandard ​ ​ - ​ ​ 125 ​ ​ 1,168 ​ ​ 11,241 ​ ​ 9,897 ​ ​ 5,188 ​ ​ - ​ ​ - ​ ​ 27,619 Total commercial real estate – owner occupied ​ ​ 91,012 ​ ​ 115,542 ​ ​ 142,564 ​ ​ 140,393 ​ ​ 90,849 ​ ​ 88,639 ​ ​ 14,284 ​ ​ - ​ ​ 683,283 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 44,699 ​ ​ 27,928 ​ ​ 83,222 ​ ​ 17,747 ​ ​ 82 ​ ​ 1,081 ​ ​ 468 ​ ​ - ​ ​ 175,227 Special Mention ​ ​ - ​ ​ - ​ ​ 6,794 ​ ​ - ​ ​ - ​ ​ 344 ​ ​ - ​ ​ - ​ ​ 7,138 Substandard ​ ​ - ​ ​ - ​ ​ 19,351 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 19,351 Total construction ​ ​ 44,699 ​ ​ 27,928 ​ ​ 109,367 ​ ​ 17,747 ​ ​ 82 ​ ​ 1,425 ​ ​ 468 ​ ​ - ​ ​ 201,716 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential real estate – investor ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 5,595 ​ ​ 3,833 ​ ​ 13,366 ​ ​ 8,060 ​ ​ 5,693 ​ ​ 9,813 ​ ​ 1,548 ​ ​ - ​ ​ 47,908 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ 375 ​ ​ 532 ​ ​ - ​ ​ 783 ​ ​ - ​ ​ - ​ ​ 1,690 Total residential real estate – investor ​ ​ 5,595 ​ ​ 3,833 ​ ​ 13,741 ​ ​ 8,592 ​ ​ 5,693 ​ ​ 10,596 ​ ​ 1,548 ​ ​ - ​ ​ 49,598 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential real estate – owner occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 11,609 ​ ​ 29,670 ​ ​ 35,786 ​ ​ 32,760 ​ ​ 22,996 ​ ​ 71,507 ​ ​ 770 ​ ​ - ​ ​ 205,098 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ - ​ ​ 151 ​ ​ - ​ ​ 1,700 ​ ​ - ​ ​ - ​ ​ 1,851 Total residential real estate – owner occupied ​ ​ 11,609 ​ ​ 29,670 ​ ​ 35,786 ​ ​ 32,911 ​ ​ 22,996 ​ ​ 73,207 ​ ​ 770 ​ ​ - ​ ​ 206,949 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Multifamily ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 39,133 ​ ​ 68,781 ​ ​ 68,032 ​ ​ 100,049 ​ ​ 29,060 ​ ​ 44,735 ​ ​ 370 ​ ​ - ​ ​ 350,160 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ 962 ​ ​ - ​ ​ 203 ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,165 Total multifamily ​ ​ 39,133 ​ ​ 68,781 ​ ​ 68,994 ​ ​ 100,049 ​ ​ 29,263 ​ ​ 44,735 ​ ​ 370 ​ ​ - ​ ​ 351,325 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ HELOC ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 2,602 ​ ​ 2,561 ​ ​ 2,118 ​ ​ 383 ​ ​ 1,383 ​ ​ 3,752 ​ ​ 90,042 ​ ​ - ​ ​ 102,841 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 39 ​ ​ 214 ​ ​ 294 ​ ​ - ​ ​ 547 Total HELOC ​ ​ 2,602 ​ ​ 2,561 ​ ​ 2,118 ​ ​ 383 ​ ​ 1,422 ​ ​ 3,966 ​ ​ 90,336 ​ ​ - ​ ​ 103,388 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 6,521 ​ ​ 1,559 ​ ​ 1,438 ​ ​ 639 ​ ​ 92 ​ ​ 7 ​ ​ 3,758 ​ ​ ​ ​ ​ 14,014 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ ​ ​ ​ - Substandard ​ ​ - ​ ​ 5 ​ ​ 5 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ ​ ​ ​ 10 Total other ​ ​ 6,521 ​ ​ 1,564 ​ ​ 1,443 ​ ​ 639 ​ ​ 92 ​ ​ 7 ​ ​ 3,758 ​ ​ - ​ ​ 14,024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 984,681 ​ ​ 735,516 ​ ​ 765,954 ​ ​ 516,166 ​ ​ 238,614 ​ ​ 289,683 ​ ​ 319,558 ​ ​ 1,279 ​ ​ 3,851,451 Special Mention ​ ​ 3,864 ​ ​ 2,791 ​ ​ 15,650 ​ ​ 7,676 ​ ​ 3,033 ​ ​ 975 ​ ​ 3,903 ​ ​ - ​ ​ 37,892 Substandard ​ ​ 335 ​ ​ 1,789 ​ ​ 26,553 ​ ​ 12,001 ​ ​ 10,139 ​ ​ 20,394 ​ ​ 19,396 ​ ​ - ​ ​ 90,607 Doubtful ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,386 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,386 Total loans ​ $ 988,880 ​ $ 740,096 ​ $ 808,157 ​ $ 537,229 ​ $ 251,786 ​ $ 311,052 ​ $ 342,857 ​ $ 1,279 ​ $ 3,981,336 ​ ​ ​ Credit quality indicators by class of loans as of December 31, 2023 were as follows in the vintage table below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Converted To Term Loans Total Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 318,569 ​ $ 136,668 ​ $ 35,901 ​ $ 11,983 ​ $ 18,390 ​ $ 3,426 ​ $ 298,931 ​ $ 1,408 ​ $ 825,276 Special Mention ​ ​ - ​ ​ 2,737 ​ ​ 707 ​ ​ 171 ​ ​ - ​ ​ - ​ ​ 4,392 ​ ​ - ​ ​ 8,007 Substandard ​ ​ - ​ ​ 2,099 ​ ​ 146 ​ ​ - ​ ​ 199 ​ ​ - ​ ​ 5,970 ​ ​ - ​ ​ 8,414 Total commercial ​ ​ 318,569 ​ ​ 141,504 ​ ​ 36,754 ​ ​ 12,154 ​ ​ 18,589 ​ ​ 3,426 ​ ​ 309,293 ​ ​ 1,408 ​ ​ 841,697 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Leases ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 219,163 ​ ​ 113,074 ​ $ 42,275 ​ ​ 14,663 ​ ​ 6,975 ​ ​ 1,255 ​ ​ - ​ ​ - ​ ​ 397,405 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ 407 ​ ​ 203 ​ ​ - ​ ​ 208 ​ ​ - ​ ​ - ​ ​ - ​ ​ 818 Total leases ​ ​ 219,163 ​ ​ 113,481 ​ ​ 42,478 ​ ​ 14,663 ​ ​ 7,183 ​ ​ 1,255 ​ ​ - ​ ​ - ​ ​ 398,223 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate – investor ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 159,654 ​ ​ 367,512 ​ ​ 218,084 ​ ​ 108,384 ​ ​ 54,322 ​ ​ 63,281 ​ ​ 8,122 ​ ​ - ​ ​ 979,359 Special Mention ​ ​ - ​ ​ - ​ ​ 11,267 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 11,267 Substandard ​ ​ - ​ ​ - ​ ​ 838 ​ ​ 5,327 ​ ​ 15,658 ​ ​ 9,648 ​ ​ 12,327 ​ ​ - ​ ​ 43,798 Total commercial real estate – investor ​ ​ 159,654 ​ ​ 367,512 ​ ​ 230,189 ​ ​ 113,711 ​ ​ 69,980 ​ ​ 72,929 ​ ​ 20,449 ​ ​ - ​ ​ 1,034,424 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate – owner occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 124,059 ​ ​ 134,383 ​ ​ 177,553 ​ ​ 103,109 ​ ​ 42,839 ​ ​ 91,062 ​ ​ 33,243 ​ ​ - ​ ​ 706,248 Special Mention ​ ​ 1,650 ​ ​ 17,415 ​ ​ 9,585 ​ ​ 3,128 ​ ​ 218 ​ ​ 3,681 ​ ​ - ​ ​ - ​ ​ 35,677 Substandard ​ ​ - ​ ​ 14,630 ​ ​ 18,817 ​ ​ 4,571 ​ ​ 14,809 ​ ​ 1,786 ​ ​ - ​ ​ - ​ ​ 54,613 Total commercial real estate – owner occupied ​ ​ 125,709 ​ ​ 166,428 ​ ​ 205,955 ​ ​ 110,808 ​ ​ 57,866 ​ ​ 96,529 ​ ​ 33,243 ​ ​ - ​ ​ 796,538 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 42,808 ​ ​ 66,513 ​ ​ 32,942 ​ ​ 100 ​ ​ 1,593 ​ ​ 1,083 ​ ​ 3,186 ​ ​ - ​ ​ 148,225 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ - ​ ​ 9,993 ​ ​ - ​ ​ 7,162 ​ ​ - ​ ​ - ​ ​ 17,155 Total construction ​ ​ 42,808 ​ ​ 66,513 ​ ​ 32,942 ​ ​ 10,093 ​ ​ 1,593 ​ ​ 8,245 ​ ​ 3,186 ​ ​ - ​ ​ 165,380 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential real estate – investor ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 5,062 ​ ​ 14,434 ​ ​ 9,027 ​ ​ 6,227 ​ ​ 6,508 ​ ​ 8,469 ​ ​ 1,471 ​ ​ - ​ ​ 51,198 Special Mention ​ ​ - ​ ​ - ​ ​ 66 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 66 Substandard ​ ​ - ​ ​ 390 ​ ​ - ​ ​ - ​ ​ 408 ​ ​ 533 ​ ​ - ​ ​ - ​ ​ 1,331 Total residential real estate – investor ​ ​ 5,062 ​ ​ 14,824 ​ ​ 9,093 ​ ​ 6,227 ​ ​ 6,916 ​ ​ 9,002 ​ ​ 1,471 ​ ​ - ​ ​ 52,595 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential real estate – owner occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 32,574 ​ ​ 41,528 ​ ​ 40,335 ​ ​ 25,322 ​ ​ 14,233 ​ ​ 68,277 ​ ​ 763 ​ ​ - ​ ​ 223,032 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ - ​ ​ 191 ​ ​ 685 ​ ​ 2,340 ​ ​ - ​ ​ - ​ ​ 3,216 Total residential real estate – owner occupied ​ ​ 32,574 ​ ​ 41,528 ​ ​ 40,335 ​ ​ 25,513 ​ ​ 14,918 ​ ​ 70,617 ​ ​ 763 ​ ​ - ​ ​ 226,248 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Multifamily ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 55,310 ​ ​ 79,060 ​ ​ 123,834 ​ ​ 72,539 ​ ​ 12,231 ​ ​ 40,825 ​ ​ 562 ​ ​ - ​ ​ 384,361 Special Mention ​ ​ - ​ ​ 168 ​ ​ 13,425 ​ ​ 322 ​ ​ 1,645 ​ ​ - ​ ​ - ​ ​ - ​ ​ 15,560 Substandard ​ ​ - ​ ​ 1,009 ​ ​ - ​ ​ - ​ ​ - ​ ​ 766 ​ ​ - ​ ​ - ​ ​ 1,775 Total multifamily ​ ​ 55,310 ​ ​ 80,237 ​ ​ 137,259 ​ ​ 72,861 ​ ​ 13,876 ​ ​ 41,591 ​ ​ 562 ​ ​ - ​ ​ 401,696 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ HELOC ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 2,735 ​ ​ 2,679 ​ ​ 490 ​ ​ 1,757 ​ ​ 1,756 ​ ​ 2,995 ​ ​ 89,161 ​ ​ - ​ ​ 101,573 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ 25 ​ ​ 1 ​ ​ 41 ​ ​ 24 ​ ​ 184 ​ ​ 1,389 ​ ​ - ​ ​ 1,664 Total HELOC ​ ​ 2,735 ​ ​ 2,704 ​ ​ 491 ​ ​ 1,798 ​ ​ 1,780 ​ ​ 3,179 ​ ​ 90,550 ​ ​ - ​ ​ 103,237 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 4,060 ​ ​ 2,278 ​ ​ 1,569 ​ ​ 153 ​ ​ 85 ​ ​ 73 ​ ​ 14,697 ​ ​ - ​ ​ 22,915 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Total other ​ ​ 4,060 ​ ​ 2,278 ​ ​ 1,569 ​ ​ 153 ​ ​ 85 ​ ​ 73 ​ ​ 14,697 ​ ​ - ​ ​ 22,915 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 963,994 ​ ​ 958,129 ​ ​ 682,010 ​ ​ 344,237 ​ ​ 158,932 ​ ​ 280,746 ​ ​ 450,136 ​ ​ 1,408 ​ ​ 3,839,592 Special Mention ​ ​ 1,650 ​ ​ 20,320 ​ ​ 35,050 ​ ​ 3,621 ​ ​ 1,863 ​ ​ 3,681 ​ ​ 4,392 ​ ​ - ​ ​ 70,577 Substandard ​ ​ - ​ ​ 18,560 ​ ​ 20,005 ​ ​ 20,123 ​ ​ 31,991 ​ ​ 22,419 ​ ​ 19,686 ​ ​ - ​ ​ 132,784 Total loans ​ $ 965,644 ​ $ 997,009 ​ $ 737,065 ​ $ 367,981 ​ $ 192,786 ​ $ 306,846 ​ $ 474,214 ​ $ 1,408 ​ $ 4,042,953 ​ ​ ​ ​ The gross charge-offs activity by loan type and year of origination for the year ended December 31, 2024 were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 2024 2023 2022 2021 2020 Prior Total Commercial ​ $ 31 ​ $ 7,205 ​ $ 756 ​ $ 670 ​ $ - ​ $ 24 ​ $ 8,686 Leases ​ ​ - ​ ​ - ​ ​ 96 ​ ​ 53 ​ ​ - ​ ​ - ​ ​ 149 Commercial real estate – investor ​ ​ - ​ ​ - ​ ​ 4,128 ​ ​ 452 ​ ​ 16 ​ ​ - ​ ​ 4,596 Commercial real estate – owner occupied ​ ​ - ​ ​ ​ ​ ​ - ​ ​ 5,135 ​ ​ - ​ ​ 19 ​ ​ 5,154 Construction ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Residential real estate – investor ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Residential real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 242 ​ ​ 242 Multifamily ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - HELOC ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Other ​ ​ 5 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 279 ​ ​ 284 Total ​ $ 36 ​ $ 7,205 ​ $ 4,980 ​ $ 6,310 ​ $ 16 ​ $ 564 ​ $ 19,111 ​ The gross charge-offs activity by loan type and year of origination for the year ended December 31, 2023 were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 2023 2022 2021 2020 2019 Prior Total Commercial ​ $ - ​ $ - ​ $ 466 ​ $ 364 ​ $ - ​ $ 55 ​ $ 885 Leases ​ ​ - ​ ​ 870 ​ ​ - ​ ​ - ​ ​ 12 ​ ​ - ​ ​ 882 Commercial real estate – investor ​ ​ 123 ​ ​ 8,352 ​ ​ 71 ​ ​ 3,270 ​ ​ - ​ ​ - ​ ​ 11,816 Commercial real estate – owner occupied ​ ​ - ​ ​ 22 ​ ​ 178 ​ ​ 6,947 ​ ​ 3,512 ​ ​ 32 ​ ​ 10,691 Construction ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Residential real estate – investor ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Residential real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Multifamily ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - HELOC ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Other ​ ​ - ​ ​ 3 ​ ​ 27 ​ ​ 6 ​ ​ - ​ ​ 332 ​ ​ 368 Total ​ $ 123 ​ $ 9,247 ​ $ 742 ​ $ 10,587 ​ $ 3,524 ​ $ 419 ​ $ 24,642 ​ The Company had $469,000 and $170,000 in consumer mortgage loans in the process of foreclosure as of December 31, 2024 and December 31, 2023, respectively. ​ Fifteen loans, totaling $46.9 million in aggregate, were modified and experiencing financial difficulty during the year ended December 31, 2024. Eighteen loans, totaling $41.7 million in aggregate, were modified which were experiencing financial difficulty during the year ended December 31, 2023. None of the loans modified while experiencing financial difficulty are in payment default as of December 31, 2024, and there were three loans past due while experiencing financial difficulty for a total of $2.0 million as of December 31, 2023. ​ The following tables presents the amortized costs basis of loans at December 31, 2024 and December 31, 2023 that were both experiencing financial difficulty and modified during the years ended December 31, 2024 and December 31, 2023 by class and by type of modification. The percentage of the amortized cost basis of loans that were modified to borrowers in financial distress as compared to amortized costs basis of each class of financing receivable is also presented below. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ Term Extension ​ Combination - Term Extension, Interest Rate, and Payment Delay ​ Combination - Term Extension and Interest Rate ​ Combination - Term Extension and Payment 1 ​ Total Modifications ​ Total Class of Financing Receivable Commercial ​ $ 3,385 ​ $ 3,794 ​ $ - ​ $ - ​ $ 7,179 ​ 0.9% Commercial real estate – investor ​ ​ 12,509 ​ ​ - ​ ​ - ​ ​ - ​ ​ 12,509 ​ 1.2% Commercial real estate – owner occupied ​ ​ 22,210 ​ ​ 415 ​ ​ 3,206 ​ ​ 209 ​ ​ 26,040 ​ 3.8% Residential real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ 0.0% Multifamily ​ ​ - ​ ​ 1,197 ​ ​ - ​ ​ - ​ ​ 1,197 ​ 0.3% HELOC ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ 0.0% Total ​ $ 38,104 ​ $ 5,406 ​ $ 3,206 ​ $ 209 ​ $ 46,925 ​ 1.2% 1 Payment modifications are either contractual delays in payment or a modification of the payment amount. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Term Extension ​ Combination - Term Extension, Interest Rate, and Payment Delay ​ Combination - Term Extension and Interest Rate ​ Combination - Term Extension and Payment 1 ​ Total Modifications ​ Total Class of Financing Receivable Commercial ​ $ 3,000 ​ $ - ​ $ 979 ​ $ - ​ $ 3,979 ​ 0.5% Commercial real estate – investor ​ ​ 13,521 ​ ​ - ​ ​ - ​ ​ 7,646 ​ ​ 21,167 ​ 2.0% Commercial real estate – owner occupied ​ ​ 16,082 ​ ​ - ​ ​ - ​ ​ - ​ ​ 16,082 ​ 2.0% Residential real estate – owner occupied ​ ​ 119 ​ ​ - ​ ​ - ​ ​ - ​ ​ 119 ​ 0.1% Multifamily ​ ​ 233 ​ ​ - ​ ​ - ​ ​ - ​ ​ 233 ​ 0.1% HELOC ​ ​ 166 ​ ​ - ​ ​ - ​ ​ - ​ ​ 166 ​ 0.2% Total ​ $ 33,121 ​ $ - ​ $ 979 ​ $ 7,646 ​ $ 41,746 ​ 1.0% 1 Payment modifications are either contractual delays in payment or a modification of the payment amount . ​ ​ The Company closely monitors the performance of loan modifications to borrowers experiencing financial difficulty. The following tables presents the performance of loans that have been modified as of December 31, 2024 and December 31, 2023. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ 30-59 days past due ​ 60-89 Days Past Due ​ 90 Days or Greater Past Due ​ Total Past Due ​ Current ​ Total Modifications Commercial ​ $ - ​ $ - ​ $ - ​ $ - ​ $ 7,179 ​ $ 7,179 Commercial real estate – investor ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 12,509 ​ ​ 12,509 Commercial real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 26,040 ​ ​ 26,040 Residential real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Multifamily ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,197 ​ ​ 1,197 HELOC ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Total ​ $ - ​ $ - ​ $ - ​ $ - ​ $ 46,925 ​ $ 46,925 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ 30-59 days past due ​ 60-89 Days Past Due ​ 90 Days or Greater Past Due ​ Total Past Due ​ Current ​ Total Modifications Commercial ​ $ - ​ $ - ​ $ 979 ​ $ 979 ​ $ 3,000 ​ $ 3,979 Commercial real estate – investor ​ ​ 838 ​ ​ - ​ ​ - ​ ​ 838 ​ ​ 20,329 ​ ​ 21,167 Commercial real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 16,082 ​ ​ 16,082 Residential real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 119 ​ ​ 119 Multifamily ​ ​ - ​ ​ - ​ ​ 233 ​ ​ 233 ​ ​ - ​ ​ 233 HELOC ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 166 ​ ​ 166 Total ​ $ 838 ​ $ - ​ $ 1,212 ​ $ 2,050 ​ $ 39,696 ​ $ 41,746 ​ The following table summarizes the financial effect of the loan modifications presented above to borrowers experiencing financial difficulty for the period ended December 31, 2024 and December 31, 2023. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ Weighted-Average Term Extension (In Months) ​ Weighted-Average Interest Rate Change ​ Weighted-Average Delay of Payment (In Months) Commercial ​ ​ 6.49 ​ ​ 0.50 % ​ ​ 4.00 Commercial real estate – investor ​ ​ 6.00 ​ ​ - ​ ​ ​ - Commercial real estate – owner occupied ​ ​ 8.59 ​ ​ 0.15 ​ ​ ​ - Residential real estate – owner occupied ​ ​ - ​ ​ - ​ ​ ​ - Multifamily ​ ​ 60.00 ​ ​ 2.75 ​ ​ ​ - HELOC ​ ​ - ​ ​ - ​ ​ ​ - Total ​ ​ 8.89 ​ ​ 0.69 % ​ ​ 4.00 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Weighted-Average Term Extension (In Months) ​ Weighted-Average Interest Rate Change ​ Weighted-Average Delay of Payment (In Months) Commercial ​ ​ 8.31 ​ ​ 5.00 % ​ ​ - Commercial real estate – investor ​ ​ 9.96 ​ ​ - ​ ​ ​ 7.00 Commercial real estate – owner occupied ​ ​ 11.65 ​ ​ - ​ ​ ​ - Residential real estate – owner occupied ​ ​ 39.00 ​ ​ - ​ ​ ​ - Multifamily ​ ​ 21.00 ​ ​ - ​ ​ ​ - HELOC ​ ​ 24.00 ​ ​ - ​ ​ ​ - Total ​ ​ 10.65 ​ ​ 5.00 % ​ ​ 7.00 ​ Loans to principal officer

Other Real Estate Owned

Other Real Estate Owned	12 Months Ended
	Dec. 31, 2024
Other Real Estate Owned
Other Real Estate Owned	Note 6: Other Real Estate Owned ​ Details related to the activity in the other real estate owned (“OREO”) portfolio, net of valuation reserve, for the periods presented are itemized in the following table. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Twelve Months Ended ​ December 31, Other real estate owned 2024 2023 ​ 2022 Balance at beginning of period ​ $ 5,123 ​ $ 1,561 ​ $ 2,356 Property additions, net of participation sold ​ ​ 21,083 ​ ​ 5,580 ​ ​ 87 Less: ​ ​ ​ ​ ​ ​ ​ ​ ​ Proceeds from property disposals, net of participation sold and gains/losses ​ ​ 2,845 ​ ​ 1,749 ​ ​ 778 Period valuation write-down ​ ​ 1,744 ​ ​ 269 ​ ​ 104 Balance at end of period ​ $ 21,617 ​ $ 5,123 ​ $ 1,561 ​ Activity in the valuation allowance was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Twelve Months Ended ​ December 31, ​ 2024 2023 2022 Balance at beginning of period ​ $ 118 ​ $ 856 ​ $ 1,179 Provision for unrealized losses ​ ​ 1,744 ​ ​ 269 ​ ​ 104 Reductions taken on sales ​ ​ - ​ ​ (1,007) ​ ​ (427) Balance at end of period ​ $ 1,862 ​ $ 118 ​ $ 856 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Expenses related to OREO, net of lease revenue includes: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Twelve Months Ended ​ December 31, ​ 2024 2023 ​ 2022 Gain on sales, net ​ $ (390) ​ $ (256) ​ $ (163) Provision for unrealized losses ​ ​ 1,744 ​ ​ 269 ​ ​ 104 Operating expenses ​ ​ 1,801 ​ ​ 434 ​ ​ 193 Less: ​ ​ ​ ​ ​ ​ ​ ​ ​ Lease revenue ​ ​ 935 ​ ​ 48 ​ ​ 4 Net OREO expense ​ $ 2,220 ​ $ 399 ​ $ 130 ​

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2024
Premises and Equipment
Premises and Equipment	Note 7: Premises and Equipment ​ Premises and equipment at December 31, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ ​ ​ ​ ​ Accumulated ​ ​ ​ ​ Accumulated ​ ​ ​ ​ ​ ​ ​ ​ Depreciation/ ​ Net Book ​ ​ ​ ​ Depreciation/ ​ Net Book ​ ​ ​ ​ Cost ​ Amortization ​ Value ​ Cost ​ Amortization ​ Value ​ ​ Land ​ $ 30,981 ​ $ - ​ $ 30,981 ​ $ 29,741 ​ $ - ​ $ 29,741 ​ ​ Buildings ​ 61,428 ​ 27,413 ​ 34,015 ​ 58,311 ​ 25,911 ​ 32,400 ​ ​ Leasehold improvements ​ 10,341 ​ 2,112 ​ 8,229 ​ 7,785 ​ 1,574 ​ 6,211 ​ ​ Furniture and equipment ​ 63,884 ​ 49,798 ​ 14,086 ​ 57,447 ​ ​ 46,489 ​ 10,958 ​ ​ Total Premises and Equipment ​ $ 166,634 ​ $ 79,323 ​ $ 87,311 ​ $ 153,284 ​ $ 73,974 ​ $ 79,310 ​ ​ ​ The Company had $1.4 million and $1.0 million of fixed assets held for sale as of December 31, 2024 and 2023, respectively. These fixed assets held for sale are reported with other assets on the Consolidated Balance Sheets. ​ The Company enters into lease arrangements in the normal course of business primarily for branch locations and certain ATMs. The Company’s leases have remaining terms ranging from six-months to 19.4 years, some of which include options to extend between five ​ At December 31, 2024, the Company had lease liabilities totaling $12.5 million and right-of-use assets totaling $7.4 million related to operating leases. At December 31, 2023, the Company had lease liabilities totaling $11.6 million and right-of-use assets totaling $7.1 million related to operating leases. Lease liabilities and right-of-use assets are reflected in other liabilities and other assets, respectively. ​ ​ ​ Right-of-use asset and lease obligations by type of property are listed below. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ Right-of-Use Asset ​ Lease Liability ​ Weight Average Lease Term in Years ​ Weight Average Discount Rate Operating Leases ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Land and building leases ​ $ 7,359 ​ $ 12,465 ​ ​ 13.7 ​ 4.72 % Total operating leases ​ $ 7,359 ​ $ 12,465 ​ ​ 13.7 ​ 4.72 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Right-of-Use Asset ​ Lease Liability ​ Weight Average Lease Term in Years ​ Weight Average Discount Rate Operating Leases ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Land and building leases ​ $ 7,093 ​ $ 11,578 ​ ​ 12.5 ​ 4.65 % Total operating leases ​ $ 7,093 ​ $ 11,578 ​ ​ 12.5 ​ 4.65 % ​ During 2024, there was one lease termination with a right-of-use asset and lease liability ​ During 2024, there was one sale leaseback specific to a branch location. The transaction occurred with an unrelated party at arm’s length, there were no concessions or favorable terms on either the sale price or the subsequent lease terms. We recorded a gain of $31,311 to net gain/(loss) on sale of fixed assets, net of closing costs on the consolidated statements of income. The terms of the lease are 20 years with an escalating rent schedule, and there are no lease incentives. The calculation of the lease liability utilized an incremental borrowing rate of 4.61%. ​ Operating lease costs are listed below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ 2022 Operating lease cost ​ $ 1,337 ​ $ 988 ​ $ 716 Short-term lease cost ​ ​ 54 ​ ​ 64 ​ ​ 60 Total operating lease cost ​ $ 1,391 ​ $ 1,052 ​ $ 776 ​ There were no sales and leaseback transactions, leverage leases, lease transactions with related parties or leases that had not yet been commenced during the periods ending December 31, 2024 or 2023. ​ A maturity analysis of operating lease liabilities and reconciliation of the undiscounted cash flows to the total operating lease liability as of December 31, 2024, is listed below. ​ ​ ​ ​ ​ Lease payments ​ ​ ​ Due in one year or less ​ $ 2,095 Due in one year through two years ​ ​ 1,903 Due in two years through three years ​ ​ 1,847 Due in three years through four years ​ ​ 1,756 Due in four years through five years ​ ​ 1,692 Thereafter ​ ​ 5,824 Total lease payments ​ ​ 15,117 Discount on cash flows ​ ​ (2,652) Total lease liabilities ​ $ 12,465 ​

Deposits

Deposits	12 Months Ended
	Dec. 31, 2024
Deposits
Deposits	​ Note 8: Deposits ​ Major classifications of deposits at December 31, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Noninterest bearing demand ​ $ 1,704,920 ​ $ 1,834,891 ​ Savings ​ ​ 932,201 ​ ​ 971,334 ​ NOW accounts ​ ​ 621,434 ​ ​ 565,375 ​ Money market accounts ​ ​ 761,499 ​ ​ 671,240 ​ Certificates of deposit of less than $100,000 ​ ​ 352,526 ​ ​ 266,035 ​ Certificates of deposit of $100,000 through $250,000 ​ ​ 270,837 ​ ​ 180,289 ​ Certificates of deposit of more than $250,000 ​ ​ 125,314 ​ ​ 81,582 ​ Total deposits ​ $ 4,768,731 ​ $ 4,570,746 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The Company had $29.8 million and $30.7 million in listing service deposits as of December 31, 2024 and 2023, respectively. Deposits held by senior officers and directors, including their related interests, totaled $11.0 million and $12.0 million as of December 31, 2024 and 2023, respectively. ​ At December 31, 2024, scheduled maturities of time deposits were as follows: ​ ​ ​ ​ ​ ​ 2025 $ 700,746 ​ 2026 ​ 27,775 ​ 2027 ​ 7,645 ​ 2028 ​ 8,130 ​ 2029 ​ 4,381 ​ Total time deposits ​ $ 748,677 ​ ​

Borrowings

Borrowings	12 Months Ended
	Dec. 31, 2024
Borrowings
Borrowings	Note 9: Borrowings ​ The following table is a summary of borrowings as of December 31, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Securities sold under repurchase agreements ​ $ 36,657 ​ $ 26,470 ​ Other short-term borrowings ​ ​ 20,000 ​ ​ 405,000 ​ Junior subordinated debentures 1 ​ ​ 25,773 ​ ​ 25,773 ​ Subordinated debentures ​ ​ 59,467 ​ ​ 59,382 ​ Total borrowings ​ $ 141,897 ​ $ 516,625 ​ ​ ​ ​ ​ ​ ​ ​ ​ 1 See Note 10: Junior Subordinated Debentures, below. ​ The Company enters into deposit sweep transactions where the transaction amounts are secured by pledged securities. These transactions consistently mature within 1 to 90 days from the transaction date and are governed by sweep repurchase agreements. All sweep repurchase agreements are treated as financings secured by U.S. government agencies, collateralized mortgage obligations, mortgage-backed securities and/or highly-rated issues of State and political subdivisions, and had a carrying amount of $36.7 million and $26.5 million at December 31, 2024 and 2023, respectively. The fair value of the pledged collateral was $73.6 million and $45.7 million at December 31, 2024 and December 31, 2023, respectively. At December 31, 2024, there were no customers with secured balances exceeding 10% of stockholders’ equity. ​ The Company’s borrowings at the FHLBC require the Bank to be a member and invest in the stock of the FHLBC. Total borrowings are generally limited to the lower of 35% of total assets or 60% of the book value of certain mortgage loans. As of December 31, 2024, the Bank had $20.0 million in short-term advances outstanding under the FHLBC. There were $405.0 million in short-term advances as of December 31, 2023. FHLBC stock held at December 31, 2024 was valued at $4.5 million, and any potential FHLBC advances were collateralized by loans and securities with a principal balance of $1.41 billion, which carried a FHLBC-calculated combined value of $942.8 million. As of December 31, 2023, FHLBC stock owned by the Bank was valued at $18.5 million and the principal balance of loans and securities pledged was $1.46 billion. Based on the total amount of loans and securities pledged, the Bank had a total borrowing capacity at the FHLBC of $942.8 million and a remaining funding availability of $922.8 million on December 31, 2024. ​ ​ ​ In the second quarter of 2021, we entered into Subordinated Note Purchase Agreements with certain qualified institutional buyers pursuant to which we sold and issued $60.0 million in aggregate principal amount of our 3.50% Fixed-to-Floating Rate Subordinated Notes due April 15, 2031 (the “Notes”). We sold the Notes to eligible purchasers in a private offering, and the proceeds of this issuance are intended to be used for general corporate purposes, which may include, without limitation, the redemption of existing senior debt, common stock repurchases and strategic acquisitions. The Notes bear interest at a fixed annual rate of 3.50% through April 14, 2026, payable semi-annually in arrears. As of April 15, 2026 forward, the interest rate on the Notes will generally reset quarterly to a rate equal to Three-Month Term SOFR (as defined by the Note) plus 273 basis points, payable quarterly in arrears. The Notes have a stated maturity of April 15, 2031, and are redeemable, in whole are in part, on April 15, 2026, or any interest payment date thereafter, and at any time upon the occurrence of certain events. The subordinated debentures outstanding, net of deferred issuance costs, totaled $59.5 million and $59.4 million as of December 31, 2024 and 2023, respectively. ​ The Company issued senior notes in December 2016 with a ten-year maturity, and terms included interest payable semiannually at 5.75% for five years. On June 30, 2023, the Company redeemed all of the $45.0 million senior notes. Upon redemption, the related deferred debt issuance costs of $362,000 was also recorded as interest expense, resulting in an effective cost of this debt issuance of 12.85% for the second quarter of 2023. ​ On February 24, 2023, we paid off the remaining $9.0 million balance in notes payable related to a $20.0 million dollar term note originated with a correspondent bank in the first quarter of 2020, to facilitate the redemption of our Old Second Capital Trust I trust preferred securities and related junior subordinated debentures, completed on March 2, 2020. ​ The Company has an undrawn line of credit of $30.0 million with a correspondent bank to be used for short-term funding needs; advances under this line can be outstanding up to 360 days from the date of issuance. This line of credit has not been utilized since early 2019. ​ Scheduled maturities and weighted average rates of borrowings for the years ended December 31, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ Average ​ ​ ​ ​ Average ​ Balance Rate Balance Rate 2024 ​ $ - - % $ 431,470 ​ 4.98 % 2025 ​ ​ 56,657 ​ 2.47 ​ ​ - - ​ 2026 ​ - - ​ - - ​ 2027 ​ - - ​ - ​ - ​ 2028 ​ - - ​ - - ​ 2029 ​ - - ​ - ​ - ​ Thereafter ​ 85,240 3.89 ​ 85,155 4.10 ​ Total borrowings ​ $ 141,897 3.32 % $ 516,625 4.84 % ​

Junior Subordinated Debentures

Junior Subordinated Debentures	12 Months Ended
	Dec. 31, 2024
Junior Subordinated Debentures
Junior Subordinated Debentures	Note 10: Junior Subordinated Debentures ​ The Company issued $25.0 million of cumulative trust preferred securities through a private placement completed by an additional, unconsolidated subsidiary, Old Second Capital Trust II, in April 2007. These trust preferred securities mature in 30 years, but subject to regulatory approval, can be called in whole or in part on a quarterly basis commencing June 15, 2017. The quarterly cash distributions on the securities were fixed at 6.77% through June 15, 2017, distributions subsequently moved to a floating rate of 150 basis points over three-month LIBOR, and finally 150 basis points over three-month SOFR following the sunset of LIBOR. Upon conversion to a floating rate, a cash flow hedge was initiated which resulted in the total interest rate paid on the debt of 4.37% and 4.25% as of December 31, 2024 and December 31, 2023, respectively. The Company issued a new $25.8 million subordinated debenture to the Old Second Capital Trust II in return for the aggregate net proceeds of this trust preferred offering. The interest rate and payment frequency on the debenture are equivalent to the cash distribution basis on the trust preferred securities. ​ The junior subordinated debentures issued by the Company are disclosed on the Consolidated Balance Sheets, and the related interest expense for each issuance is included in the Consolidated Statements of Income. As of December 31, 2024 and 2023, the remaining unamortized debt issuance costs related to the junior subordinated debentures were less than $1,000 and are included as a reduction to the balance of the junior subordinated debentures on the Consolidated Balance Sheets. The remaining deferred issuance costs on the junior subordinated debentures related to the issuance of Old Second Capital Trust II will be amortized to interest expense over the remainder of the 30-year term of the notes and are included in the Consolidated Statements of Income. ​

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2024
Income Taxes
Income Taxes	​ Note 11: Income Taxes ​ Income tax expense (benefit) for the years ending December 31, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Current federal ​ $ 22,011 ​ $ 20,724 ​ $ 13,241 Current state ​ ​ 7,048 ​ ​ 10,098 ​ ​ 6,209 Deferred federal ​ ​ (1,419) ​ ​ 1,964 ​ ​ 3,338 Deferred state ​ ​ 52 ​ ​ (107) ​ ​ 1,356 Total income tax expense ​ $ 27,692 ​ $ 32,679 ​ $ 24,144 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The following were the components of the deferred tax assets and liabilities as of December 31: ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Accrued bonus ​ $ 2,601 ​ $ 2,500 Allowance for credit losses ​ ​ 12,241 ​ ​ 13,077 Deferred compensation ​ ​ 2,100 ​ ​ 1,622 Stock based compensation ​ ​ 1,920 ​ ​ 1,768 Business combination adjustments ​ ​ - ​ ​ 270 Lease liability ​ ​ 3,315 ​ ​ 3,201 Other assets ​ ​ 2,357 ​ ​ 1,602 Total deferred tax assets ​ ​ 24,534 ​ ​ 24,040 ​ ​ ​ ​ ​ ​ ​ Accumulated depreciation on premises and equipment ​ ​ (5,844) ​ ​ (5,454) Goodwill amortization/impairment ​ ​ (604) ​ ​ (465) Mortgage servicing rights ​ ​ (2,728) ​ ​ (2,842) Amortization of core deposit intangible ​ ​ (2,248) ​ ​ (2,987) Right of use asset ​ ​ (1,972) ​ ​ (1,969) Acquired securities ​ ​ (1,997) ​ ​ (2,376) Other liabilities ​ ​ (1,090) ​ ​ (1,263) Total deferred tax liabilities ​ ​ (16,483) ​ ​ (17,356) Net deferred tax asset before adjustments related to other comprehensive income ​ ​ 8,051 ​ ​ 6,684 Tax effect of adjustments related to other comprehensive income ​ ​ 18,568 ​ ​ 24,393 Net deferred tax asset ​ $ 26,619 ​ $ 31,077 ​ ​ ​ ​ ​ ​ ​ ​ At December 31, 2024, the Company had no federal net operating loss carryforward and no state net operating loss carryforward. ​ Effective tax rates differ from federal statutory rates applied to financial statement income for the years ended December 31, due to the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Tax at statutory federal income tax rate ​ $ 23,721 ​ $ 26,126 ​ $ 19,225 Nontaxable interest income, net of disallowed interest deduction ​ ​ (820) ​ ​ (947) ​ ​ (1,097) BOLI income ​ ​ (950) ​ ​ (445) ​ ​ (151) State income taxes, net of federal benefit ​ ​ 5,775 ​ ​ 7,911 ​ ​ 6,091 Stock based compensation ​ ​ (139) ​ ​ (132) ​ ​ (43) Other, net ​ ​ 105 ​ ​ 166 ​ ​ 119 Total tax at effective tax rate ​ $ 27,692 ​ $ 32,679 ​ $ 24,144 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The Company evaluated positive and negative evidence in order to determine if it was more likely than not that the deferred tax asset would be recovered through future income. Significant positive evidence evaluated included recent and projected earnings, strong asset quality and capital position. No significant negative evidence was noted. ​ The Company and its subsidiaries are subject to U.S. federal income tax as well as various state taxing jurisdictions. The Company is no longer subject to examination for tax years prior to 2021.

Equity Compensation Plans

Equity Compensation Plans	12 Months Ended
	Dec. 31, 2024
Equity Compensation Plans
Equity Compensation Plans	​ Note 12: Equity Compensation Plans ​ Stock-based awards are outstanding under the Company’s 2019 Equity Incentive Plan, as amended and restated (the “2019 Plan”). The 2019 Plan was originally approved at the May 2019 annual stockholders’ meeting and authorized 600,000 shares, and at the May 2021 annual stockholders’ meeting, the Company obtained stockholder approval to increase the number of shares of common stock authorized for issuance under the plan by 1,200,000 shares, from 600,000 shares to 1,800,000 shares. Following the approval of the 2019 Plan, no further awards will be granted under any other prior plan. ​ The 2019 Plan authorizes the granting of qualified stock options, non-qualified stock options, restricted stock, restricted stock units, and stock appreciation rights (“SARs”). Awards may be granted to selected directors, officers, employees or eligible service providers under the 2019 Plan at the discretion of the Compensation Committee of the Company’s Board of Directors. As of December 31, 2024, 745,588 shares remained available for issuance under the 2019 Plan. ​ The Company has granted only restricted stock units under the 2019 Equity Incentive Plan. ​ Generally, restricted stock and restricted stock units granted under the 2019 Plan vest three years from the grant date, but the Compensation Committee of the Company’s Board of Directors has discretionary authority to change the terms of particular awards including the vesting schedule. ​ Under the 2019 Plan, unless otherwise provided in an award agreement, upon the occurrence of a change in control, all stock options and SARs then held by the participant will become fully exercisable immediately, and all stock awards and cash incentive awards will become fully earned and vested immediately if, (i) the 2019 Plan is not an obligation of the successor entity following a change in control or (ii) the 2019 Plan is an obligation of the successor entity following a change in control and the participant incurs a termination of service without cause or for good reason following the change in control. Notwithstanding the immediately preceding sentence, if the vesting of an award is conditioned upon the achievement of performance measures, then such vesting will generally be subject to the following: if, at the time of the change in control, the performance measures are less than 50% attained (pro rata based upon the time of the period through the change in control), the award will become vested and exercisable on a fractional basis with the numerator being equal to the percentage of attainment and the denominator being 50%; and if, at the time of the change in control, the performance measures are at least 50% attained (pro rata based upon the time of the period through the change in control), the award will become fully earned and vested immediately upon the change in control. ​ Awards of restricted stock units under the 2019 Plan generally entitled holders to voting and dividend rights upon grant and are subject to forfeiture until certain restrictions have lapsed including employment for a specific period. Awards of restricted stock units under the 2019 Plan are also subject to forfeiture until certain restrictions have lapsed including employment for a specific period, but do not entitle holders to voting rights until the restricted period ends and shares are transferred in connection with the units. ​ Total compensation cost that has been charged for the 2019 Plan was $4.1 million, $3.6 million and $3.0 million for the years ending December 31, 2024, 2023 and 2022, respectively. ​ There were 339,235 and 240,149 restricted stock units granted during the years ending December 31, 2024 and 2023, respectively. Compensation expense is recognized over the vesting period of the restricted stock unit based on the market value of the award on the grant date. A summary of changes in the Company’s unvested restricted awards for the year ending December 31, 2024, is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ ​ ​ ​ Weighted ​ ​ Restricted ​ Average ​ ​ Stock Shares ​ Grant Date ​ and Units Fair Value Unvested at January 1 ​ 709,237 ​ $ 14.26 Granted ​ 339,235 ​ ​ 13.44 Vested ​ (248,386) ​ ​ 11.54 Forfeited ​ (21,808) ​ ​ 15.10 Unvested at December 31 ​ 778,278 ​ $ 14.75 ​ ​ ​ ​ ​ ​ ​ Total unrecognized compensation cost of restricted stock unit awards was $4.2 million as of December 31, 2024, which is expected to be recognized over a weighted-average period of 1.73 years. ​ ​

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2024
Earnings Per Share
Earnings Per Share	​ Note 13: Earnings Per Share ​ The earnings per share, both basic and diluted, are included below as of December 31, (in thousands except for per share data): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Basic earnings per share: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted-average common shares outstanding ​ ​ ​ 44,828,290 ​ ​ 44,663,722 ​ ​ 44,526,655 Net income ​ ​ $ 85,264 ​ $ 91,729 ​ $ 67,405 Basic earnings per share ​ ​ $ 1.90 ​ $ 2.05 ​ $ 1.51 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Diluted earnings per share: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted-average common shares outstanding ​ ​ ​ 44,828,290 ​ ​ 44,663,722 ​ ​ 44,526,655 Dilutive effect of unvested restricted awards 1 ​ ​ ​ 811,061 ​ ​ 731,288 ​ ​ 686,433 Diluted average common shares outstanding ​ ​ ​ 45,639,351 ​ ​ 45,395,010 ​ ​ 45,213,088 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net Income ​ ​ $ 85,264 ​ $ 91,729 ​ $ 67,405 Diluted earnings per share ​ ​ $ 1.87 ​ $ 2.02 ​ $ 1.49 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1 Includes the common stock equivalents for restricted share rights that are dilutive. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Commitments

Commitments	12 Months Ended
	Dec. 31, 2024
Commitments
Commitments	Note 14: Commitments ​ In the normal course of business, there are outstanding commitments that are not reflected in the Consolidated Financial Statements. Commitments include financial instruments that involve, to varying degrees, elements of credit, interest rate, and liquidity risk. In management’s opinion, these do not represent unusual risks and management does not anticipate significant losses as a result of these transactions. The Company uses the same credit policies in making commitments and conditional obligations for borrowers as it does for on-balance sheet instruments. ​ The following table is a summary of financial instrument commitments as of December 31, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ December 31, 2023 ​ ​ Fixed Variable Total Fixed Variable Total Letters of credit: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Borrower: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial standby ​ $ 188 ​ $ 16,322 ​ $ 16,510 ​ $ 173 ​ $ 16,621 ​ $ 16,794 ​ Performance standby ​ ​ 552 ​ ​ 10,207 ​ ​ 10,759 ​ ​ 562 ​ ​ 13,689 ​ ​ 14,251 ​ ​ ​ ​ 740 ​ ​ 26,529 ​ ​ 27,269 ​ ​ 735 ​ ​ 30,310 ​ ​ 31,045 ​ Non-borrower: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performance standby ​ ​ - ​ ​ 67 ​ ​ 67 ​ ​ - ​ ​ 67 ​ ​ 67 ​ Total letters of credit ​ $ 740 ​ $ 26,596 ​ $ 27,336 ​ $ 735 ​ $ 30,377 ​ $ 31,112 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unused loan commitments: ​ $ 163,282 ​ $ 616,533 ​ $ 779,815 ​ $ 140,305 ​ $ 694,960 ​ $ 835,265 ​ ​ The Bank occupies facilities under long-term operating leases, some of which include provisions for future rent increases. In addition, the Company leases space at sites that house automatic teller machines (ATMs). The Company also receives rental income on certain leased properties. As of December 31, 2024, aggregate future minimum rental income to be received under noncancelable leases totaled $420,000. Total facility net operating lease expense or revenue recorded under all operating leases was a net expense of $1.2 million in 2024, $844,000 in 2023, and $396,000 in 2022. Total ATM lease expense, including the costs related to servicing those ATM’s, was $2.4 million in 2024, $2.1 million in 2023, and $1.9 million in 2022. ​ ​ ​ The following table below is the estimated aggregate minimum annual rental commitments at December 31, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2030 ​ 2025 ​ 2026 ​ 2027 ​ 2028 ​ 2029 ​ and thereafter Rental commitment $ 2,149 ​ $ 1,945 ​ $ 1,877 ​ $ 1,758 ​ $ 1,692 ​ $ 5,824 ​ Legal proceedings ​ The Company and its subsidiaries, from time to time, pursue collection suits and other actions that arise in the ordinary course of business against their borrowers and are defendants in legal actions arising from normal business activities. Management, after consultation with legal counsel, believes that the ultimate liabilities, if any, resulting from these actions will not have a material adverse effect on the financial position of the Bank or on the consolidated financial position of the Company based on all known information at this time.

Regulatory & Capital Matters

Regulatory & Capital Matters	12 Months Ended
	Dec. 31, 2024
Regulatory & Capital Matters
Regulatory & Capital Matters	Note 15: Regulatory & Capital Matters ​ The Bank is subject to the risk-based capital regulatory guidelines, which include the methodology for calculating the risk-weighted Bank assets, developed by the Office of the Comptroller of the Currency (the “OCC”) and the other bank regulatory agencies. In connection with the current economic environment, the Bank’s current level of nonperforming assets and the risk-based capital guidelines, the Bank’s board of directors’ guidelines are for the Bank to maintain a Tier 1 leverage capital ratio at or above eight percent (8%) and a total risk-based capital ratio at or above twelve percent (12%). The Bank currently exceeds those thresholds. ​ Bank holding companies are required to maintain minimum levels of capital in accordance with capital guidelines implemented by the Board of Governors of the Federal Reserve System. The general bank and holding company capital adequacy guidelines in force as of the periods reported are shown in the accompanying table, as are the capital ratios of the Company and the Bank, as of December 31, 2024, and December 31, 2023. ​ In July 2013, the U.S. federal banking authorities issued final rules (the “Basel III Rules”) establishing more stringent regulatory capital requirements for U.S. banking institutions, which went into effect on January 1, 2015. A detailed discussion of the Basel III Rules is included in Part I, Item 1 of the annual report under the heading “Supervision and Regulation.” ​ The Company and the Bank are subject to regulatory capital requirements administered by federal banking agencies. The capital ratios below are calculated pursuant to the capital requirements in effect for the periods reported below. ​ ​ Capital levels and industry defined regulatory minimum required levels at December 31, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Minimum Capital ​ Well Capitalized ​ ​ ​ ​ ​ ​ ​ ​ ​ Adequacy with Capital ​ Under Prompt Corrective ​ ​ ​ Actual ​ Conservation Buffer, if applicable 1 ​ Action Provisions 2 ​ ​ Amount Ratio Amount Ratio Amount Ratio ​ 2024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Common equity tier 1 capital to risk weighted assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ $ 607,294 ​ 12.82 % ​ $ 331,596 ​ 7.00 % ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 610,285 ​ 12.89 ​ ​ ​ 331,419 ​ 7.00 ​ ​ $ 307,747 ​ 6.50 % Total capital to risk weighted assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ ​ 736,492 ​ 15.54 ​ ​ ​ 497,630 ​ 10.50 ​ ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 654,484 ​ 13.82 ​ ​ ​ 497,256 ​ 10.50 ​ ​ ​ 473,577 ​ 10.00 ​ Tier 1 capital to risk weighted assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ ​ 632,294 ​ 13.34 ​ ​ ​ 402,886 ​ 8.50 ​ ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 610,285 ​ 12.89 ​ ​ ​ 402,438 ​ 8.50 ​ ​ ​ 378,765 ​ 8.00 ​ Tier 1 capital to average assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ ​ 632,294 ​ 11.30 ​ ​ ​ 223,821 ​ 4.00 ​ ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 610,285 ​ 10.90 ​ ​ ​ 223,958 ​ 4.00 ​ ​ ​ 279,947 ​ 5.00 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Common equity tier 1 capital to risk weighted assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ $ 547,721 ​ 11.37 % ​ $ 337,207 ​ 7.00 % ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 592,413 ​ 12.32 ​ ​ ​ 336,598 ​ 7.00 ​ ​ $ 312,556 ​ 6.50 % Total capital to risk weighted assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ ​ 677,076 ​ 14.06 ​ ​ ​ 505,640 ​ 10.50 ​ ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 636,768 ​ 13.24 ​ ​ ​ 504,990 ​ 10.50 ​ ​ ​ 480,943 ​ 10.00 ​ Tier 1 capital to risk weighted assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ ​ 572,721 ​ 11.89 ​ ​ ​ 409,430 ​ 8.50 ​ ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 592,413 ​ 12.32 ​ ​ ​ 408,727 ​ 8.50 ​ ​ ​ 384,684 ​ 8.00 ​ Tier 1 capital to average assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ ​ 572,721 ​ 10.06 ​ ​ ​ 227,722 ​ 4.00 ​ ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 592,413 ​ 10.41 ​ ​ ​ 227,632 ​ 4.00 ​ ​ ​ 284,540 ​ 5.00 ​ ​ 1 Amounts are shown inclusive of a capital conservation buffer of 2.50%. 2 The prompt corrective action provisions are only applicable at the Bank level. The Bank exceeded the general minimum regulatory requirements to be considered “well capitalized.” ​ As part of its response to the impact of the COVID-19 pandemic, in the first quarter of 2020, U.S. federal regulatory authorities issued an interim final rule that provided banking organizations that adopted CECL during the 2020 calendar year with the option to delay for two years the estimated impact of CECL on regulatory capital relative to regulatory capital determined under the prior incurred loss methodology, followed by a three-year transition period to phase out the aggregate amount of the capital benefit provided during the initial two-year delay (i.e., a five-year transition in total). In connection with our adoption of CECL on January 1, 2020, we elected to utilize the five-year CECL transition. The cumulative amount that is not recognized in regulatory capital, in addition to the $3.8 million Day 1 impact of CECL adoption, has been phased in at 25% per year beginning January 1, 2022. As of December 31, 2024, the capital measures of the Company above include $951,000, which is the Day 1 impact to retained earnings and 25% of the increase in the allowance for credit losses during 2020 and 2021, excluding PCD loans and acquisition related adjustments. ​ Dividend Restrictions ​ In addition to the above requirements, banking regulations and capital guidelines generally limit the amount of dividends that may be paid by a Bank without prior regulatory approval. Under these regulations, the amount of dividends that may be paid in any calendar year is limited to the current year’s profits, combined with the retained profit of the previous two years, subject to the capital requirements described above. As of December 31, 2024, the Company had total dividend availability of $107.8 million from the Bank, per regulatory guidelines. Pursuant to the Basel III rules that were fully phased-in at January 1, 2019, the Bank must keep a capital conservation buffer of 2.5% on all risk-based capital requirements in order to avoid additional limitations on capital distributions.

Mortgage Banking Derivatives

Mortgage Banking Derivatives	12 Months Ended
	Dec. 31, 2024
Mortgage Banking Derivatives.
Mortgage Banking Derivatives
Mortgage Banking Derivatives	​ Note 16: Mortgage Banking Derivatives ​ Commitments to fund certain mortgage loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery of mortgage loans to third party investors are considered derivatives. It is the Company’s practice to sell mortgage-backed securities (“MBS”) contracts for the future delivery to economically hedge the effect of changes in interest rates resulting from its commitments to fund the loans. These contracts are also derivatives and collectively with the forward commitments for the future delivery of mortgage loans are considered forward contracts. These mortgage banking derivatives, which are not designated in hedge relationships using the accepted accounting for derivative instruments and hedging activities at December 31, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Forward contracts: ​ ​ ​ ​ ​ ​ ​ Notional amount ​ $ 5,500 ​ $ 6,000 ​ Fair value ​ 10 ​ (46) ​ ​ ​ ​ ​ ​ ​ ​ ​ Rate lock commitments: ​ ​ ​ ​ ​ ​ ​ Notional amount ​ $ 3,167 ​ $ 1,312 ​ Fair value ​ 45 ​ 36 ​ ​ Fair values were estimated based on changes in mortgage interest rates from the date of the commitments. The Company sold $58.0 million in loans to investors receiving proceeds of $58.8 million and resulting in a gain on sale of $1.8 million for the year ended December 31, 2024. Sales to investors included $45.0 million, or 77.9% to FNMA and $7.5 million, or 13.0%, to FHLMC for the year ended December 31, 2024. No other individual investor was sold more than 10% of the total loans sold.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2024
Fair Value Measurements
Fair Value Measurements	​ Note 17: Fair Value Measurements ​ Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an 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. The fair value hierarchy established by the Company also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Three levels of inputs that may be used to measure fair value are: ​ Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the Company has the ability to access as of the measurement date. ​ Level 2: Significant observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, and other inputs that are observable or can be corroborated by observable market data. ​ Level 3: Significant unobservable inputs that reflect a company’s own view about the assumptions that market participants would use in pricing an asset or liability. ​ There were no transfers between levels during the period ending December 31, 2024, however the Company reclassified one states and political subdivision security to an asset-backed security in all periods presented. During the period ending December 31, 2023, $14.9 million of asset-backed securities and $6.8 million of collateralized mortgage obligations were transferred to Level 2 from Level 3. ​ ​ ​ The majority of securities are valued by external pricing services or dealer market participants and are classified in Level 2 of the fair value hierarchy. Both market and income valuation approaches are utilized. Quarterly, the Company evaluates the methodologies used by the external pricing services or dealer market participants to develop the fair values to determine whether the results of the valuations are representative of an exit price in the Company’s principal markets and an appropriate representation of fair value. The Company uses the following methods and significant assumptions to estimate fair value: ​ ● Government-sponsored agency debt securities are primarily priced using available market information through processes such as benchmark spreads, market valuations of like securities, like securities groupings and matrix pricing. ● Other government-sponsored agency securities, MBS and some of the actively traded real estate mortgage investment conduits and collateralized mortgage obligations are priced using available market information including benchmark yields, prepayment speeds, spreads, volatility of similar securities and trade date. ● States and political subdivisions are largely grouped by characteristics (e.g., geographical data and source of revenue in trade dissemination systems). Because some securities are not traded daily and due to other grouping limitations, active market quotes are often obtained using benchmarking for like securities. ● Auction rate asset backed securities are priced using market spreads, cash flows, prepayment speeds, and loss analytics. ● Annually every security holding is priced by a pricing service independent of the regular and recurring pricing services used. The independent service provides a measurement to indicate if the price assigned by the regular service is within or outside of a reasonable range. Management reviews this report and applies judgment in adjusting calculations at year end related to securities pricing. ● Residential mortgage loans available for sale in the secondary market are carried at fair market value. The fair value of loans held-for-sale is determined using quoted secondary market prices. ● Lending related commitments to fund certain residential mortgage loans, e.g., residential mortgage loans with locked interest rates to be sold in the secondary market and forward commitments for the future delivery of mortgage loans to third party investors as well as forward commitments for future delivery of MBS are considered derivatives. Fair values are estimated based on observable changes in mortgage interest rates including prices for MBS from the date of the commitment and do not typically involve significant judgments by management. ● The fair value of mortgage servicing rights is based on a valuation model that calculates the present value of estimated net servicing income. The valuation model incorporates assumptions that market participants would use in estimating future net servicing income to derive the resultant value. The Company is able to compare the valuation model inputs, such as the discount rate, prepayment speeds, weighted average delinquency and foreclosure/bankruptcy rates to widely available published industry data for reasonableness. ● Interest rate swap positions, both assets and liabilities, are based on valuation pricing models using an income approach reflecting readily observable market parameters such as interest rate yield curves. ● The fair value of individually evaluated loans with specific allocations of the ACL is essentially based on recent real estate appraisals or the fair value of the collateralized asset. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are made in the appraisal process by the appraisers to reflect differences between the available comparable sales and income data. Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value. ● Nonrecurring adjustments to certain commercial and residential real estate properties classified as OREO are measured at the lower of carrying amount or fair value, less costs to sell. Fair values are based on third party appraisals of the property, resulting in a Level 3 classification. In cases where the carrying amount exceeds the fair value, less costs to sell, a valuation loss is recognized. ​ ​ ​ Assets and Liabilities Measured at Fair Value on a Recurring Basis ​ The tables below present the balance of assets and liabilities at December 31, measured by the Company at fair value on a recurring basis are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ Level 1 Level 2 Level 3 Total Assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury ​ $ 194,143 ​ $ - ​ $ - ​ $ 194,143 U.S. government agencies ​ ​ - ​ ​ 37,814 ​ ​ - ​ ​ 37,814 U.S. government agencies mortgage-backed ​ ​ - ​ ​ 100,277 ​ ​ - ​ ​ 100,277 States and political subdivisions ​ ​ - ​ ​ 203,560 ​ ​ 11,896 ​ ​ 215,456 Collateralized mortgage obligations ​ ​ - ​ ​ 368,616 ​ ​ - ​ ​ 368,616 Asset-backed securities ​ ​ - ​ ​ 59,049 ​ ​ 3,254 ​ ​ 62,303 Collateralized loan obligations ​ ​ - ​ ​ 183,092 ​ ​ - ​ ​ 183,092 Loans held-for-sale ​ ​ - ​ ​ 1,556 ​ ​ - ​ ​ 1,556 Mortgage servicing rights ​ ​ - ​ ​ - ​ ​ 10,374 ​ ​ 10,374 Interest rate derivatives ​ ​ - ​ ​ 5,526 ​ ​ - ​ ​ 5,526 Mortgage banking derivatives ​ ​ - ​ ​ 55 ​ ​ - ​ ​ 55 Total ​ $ 194,143 ​ $ 959,545 ​ $ 25,524 ​ $ 1,179,212 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements, including risk participation agreements ​ $ - ​ $ 3,192 ​ $ - ​ $ 3,192 Total ​ $ - ​ $ 3,192 ​ $ - ​ $ 3,192 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Level 1 Level 2 Level 3 Total Assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury ​ $ 169,574 ​ $ - ​ $ - ​ $ 169,574 U.S. government agencies ​ ​ - ​ ​ 56,959 ​ ​ - ​ ​ 56,959 U.S. government agencies mortgage-backed ​ ​ - ​ ​ 106,370 ​ ​ - ​ ​ 106,370 States and political subdivisions ​ ​ - ​ ​ 214,006 ​ ​ 13,059 ​ ​ 227,065 Collateralized mortgage obligations ​ ​ - ​ ​ 392,544 ​ ​ - ​ ​ 392,544 Asset-backed securities ​ ​ - ​ ​ 66,166 ​ ​ 2,270 ​ ​ 68,436 Collateralized loan obligations ​ ​ - ​ ​ 171,881 ​ ​ - ​ ​ 171,881 Loans held-for-sale ​ ​ - ​ ​ 1,322 ​ ​ - ​ ​ 1,322 Mortgage servicing rights ​ ​ - ​ ​ - ​ ​ 10,344 ​ ​ 10,344 Interest rate derivatives ​ ​ - ​ ​ 5,391 ​ ​ - ​ ​ 5,391 Total ​ $ 169,574 ​ $ 1,014,639 ​ $ 25,673 ​ $ 1,209,886 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements, including risk participation agreements ​ $ - ​ $ 8,324 ​ $ - ​ $ 8,324 Mortgage banking derivatives ​ ​ - ​ ​ 10 ​ ​ - ​ ​ 10 Total ​ $ - ​ $ 8,334 ​ $ - ​ $ 8,334 ​ ​ The changes in Level 3 assets and liabilities measured at fair value on a recurring basis are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2024 ​ ​ Securities available-for-sale ​ ​ ​ ​ ​ ​ ​ States and ​ Mortgage ​ ​ Asset-backed ​ Political ​ Servicing ​ Securities ​ Subdivisions Rights Beginning balance January 1, 2024 ​ $ 2,270 ​ $ 13,059 ​ $ 10,344 Transfers out of Level 3 ​ ​ - ​ ​ - ​ ​ - Total gains or losses ​ ​ ​ ​ ​ ​ ​ ​ ​ Included in earnings ​ ​ - ​ ​ (125) ​ ​ (160) Included in other comprehensive income ​ ​ (69) ​ ​ (444) ​ ​ - Purchases, issuances, sales, and settlements ​ ​ ​ ​ ​ ​ ​ ​ ​ Purchases ​ ​ 1,209 ​ ​ - ​ ​ - Issuances ​ ​ - ​ ​ - ​ ​ 753 Settlements ​ ​ (156) ​ ​ (594) ​ ​ (563) Ending balance December 31, 2024 ​ $ 3,254 ​ $ 11,896 ​ $ 10,374 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2023 ​ ​ ​ ​ Securities available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ Collateralized ​ States and ​ Mortgage ​ ​ ​ Asset-backed ​ Mortgage ​ Political ​ Servicing ​ ​ Securities ​ Obligations ​ Subdivisions Rights Beginning balance January 1, 2023 ​ $ 16,740 ​ $ 6,770 ​ $ 12,501 ​ $ 11,189 ​ Transfers into Level 3 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ Transfers out of Level 3 ​ ​ (14,885) ​ ​ (6,764) ​ ​ - ​ ​ - ​ Total gains or losses ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Included in earnings ​ ​ (11) ​ ​ - ​ ​ (135) ​ ​ (924) ​ Included in other comprehensive income ​ ​ 239 ​ ​ (6) ​ ​ 998 ​ ​ - ​ Purchases, issuances, sales, and settlements ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Purchases ​ ​ 782 ​ ​ - ​ ​ - ​ ​ - ​ Issuances ​ ​ - ​ ​ - ​ ​ - ​ ​ 580 ​ Settlements ​ ​ (595) ​ ​ - ​ ​ (305) ​ ​ (501) ​ Ending balance December 31, 2023 ​ $ 2,270 ​ $ - ​ $ 13,059 ​ $ 10,344 ​ ​ ​ The following table and commentary presents quantitative and qualitative information about Level 3 fair value measurements as of December 31, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted Measured at fair value ​ ​ ​ ​ ​ ​ Significant Unobservable ​ ​ ​ Average on a recurring basis: Fair Value Valuation Methodology Inputs Range of Input of Inputs ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ States and political subdivisions ​ $ 11,896 ​ Discounted Cash Flow ​ Discount Rate ​ 5.3 –5.4% ​ 5.4 % ​ ​ ​ ​ ​ ​ ​ Liquidity Premium ​ 0.5 – 0.5% ​ 0.5 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Asset-backed securities ​ $ 3,254 ​ Discounted Cash Flow ​ Discount Rate ​ 4.9 – 4.9% ​ 4.9 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Mortgage servicing rights ​ $ 10,374 ​ Discounted Cash Flow ​ Discount Rate ​ 9.0 – 11.0% ​ 9.0 % ​ ​ ​ ​ ​ ​ ​ Prepayment Speed ​ 0.0 – 31.5% ​ 6.9 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The following table and commentary presents quantitative and qualitative information about Level 3 fair value measurements as of December 31, 2023: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted Measured at fair value ​ ​ ​ ​ ​ ​ Significant Unobservable ​ ​ ​ Average on a recurring basis: Fair Value Valuation Methodology Inputs Range of Input of Inputs ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ States and political subdivisions ​ $ 13,059 ​ Discounted Cash Flow ​ Discount Rate ​ 3.2 – 5.4% ​ 4.7 % ​ ​ ​ ​ ​ ​ ​ Liquidity Premium ​ 0.5 – 0.5% ​ 0.5 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Asset-backed securities ​ $ 2,270 ​ Discounted Cash Flow ​ Discount Rate ​ 5.6 – 5.6% ​ 5.6 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Mortgage servicing rights ​ $ 10,344 ​ Discounted Cash Flow ​ Discount Rate ​ 9.0 – 11.0% ​ 9.0 % ​ ​ ​ ​ ​ ​ ​ Prepayment Speed ​ 5.1 – 33.0% ​ 6.6 % ​ Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis: ​ The Company may be required, from time to time, to measure certain other assets at fair value on a nonrecurring basis in accordance with GAAP. These assets consist of individually evaluated loans and OREO. For assets measured at fair value on a nonrecurring basis at December 31, the following tables provide the level of valuation assumptions used to determine each valuation and the carrying value of the related assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ Level 1 Level 2 Level 3 Total Individually evaluated loans 1 ​ $ - ​ $ - ​ $ 19,058 ​ $ 19,058 Other real estate owned, net 2 ​ ​ - ​ ​ - ​ ​ 21,617 ​ ​ 21,617 Total ​ $ - ​ $ - ​ $ 40,675 ​ $ 40,675 ​ 1 Represents carrying value and related write-downs of loans for which adjustments are substantially based on the appraised value of collateral for collateral-dependent loans and to a lesser extent the discounted cash flow, had a carrying amount of $26.2 million and a valuation allowance of $7.2 million, resulting in a decrease of specific allocations within the provision for credit losses of $3.9 million for the year ending December 31, 2024. ​ 2 OREO is measured at the lower of carrying or fair value less costs to sell, and had a net carrying amount of $21.6 million, which is made up of the outstanding balance of $23.5 million, net of a valuation allowance of $1.9 million, at December 31, 2024. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Level 1 Level 2 Level 3 Total Individually evaluated loans 1 ​ $ - ​ $ - ​ $ 66,180 ​ $ 66,180 Other real estate owned, net 2 ​ ​ - ​ ​ - ​ ​ 5,123 ​ ​ 5,123 Total ​ $ - ​ $ - ​ $ 71,303 ​ $ 71,303 ​ 1 Represents carrying value and related write-downs of loans for which adjustments are substantially based on the appraised value of collateral for collateral-dependent loans and to a lesser extent the discounted cash flow, had a carrying amount of $77.3 million and a valuation allowance of $11.1 million, resulting in an increase of specific allocations within the provision for credit losses of $6.5 million for the year ending December 31, 2023. ​ 2 OREO is measured at the lower of carrying or fair value less costs to sell, and had a net carrying amount of $5.1 million, which is made up of the outstanding balance of $5.2 million, net of a valuation allowance of $118,000 at December 31, 2023. ​ These OREO and individually evaluated loan valuations include assumptions related to cash flow projections, discount rates, and recent comparable sales. The numerical range of unobservable inputs for these valuation assumptions are not meaningful.

Fair Values of Financial Instru

Fair Values of Financial Instruments	12 Months Ended
	Dec. 31, 2024
Fair Values of Financial Instruments
Fair Values of Financial Instruments	Note 18: Fair Value of Financial Instruments ​ The estimated fair values approximate carrying amount for all items except those described in the following table. Securities available-for-sale fair values are based upon market prices or dealer quotes, and if no such information is available, on the rate and term of the security. The carrying value of FHLBC stock approximates fair value as the stock is nonmarketable and can only be sold to the FHLBC or another member institution at par. FHLBC stock is carried at cost and considered a Level 2 fair value. For December 31, 2024 and 2023, the fair values of loans and leases are estimated on an exit price basis incorporating discounts for credit, liquidity and marketability factors. The fair value of time deposits is estimated using discounted future cash flows at current rates offered for deposits of similar remaining maturities. The fair values of borrowings were estimated based on interest rates available to the Company for debt with similar terms and remaining maturities. The fair value of off balance sheet volume is not considered material. The fair value of mortgage banking derivatives is discussed in Note 16: Mortgage Banking Derivatives, above. ​ The carrying amount and estimated fair values of financial instruments at December 31, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ ​ Carrying ​ Fair ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amount Value Level 1 Level 2 Level 3 Financial assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and due from banks ​ $ 52,175 ​ $ 52,175 ​ $ 52,175 ​ $ - ​ $ - Interest earning deposits with financial institutions ​ ​ 47,154 ​ ​ 47,154 ​ ​ 47,154 ​ ​ - ​ ​ - Securities available-for-sale ​ ​ 1,161,701 ​ ​ 1,161,701 ​ ​ 194,143 ​ ​ 952,408 ​ ​ 15,150 FHLBC and FRBC stock ​ ​ 19,441 ​ ​ 19,441 ​ ​ - ​ ​ 19,441 ​ ​ - Loans held-for-sale ​ ​ 1,556 ​ ​ 1,556 ​ ​ - ​ ​ 1,556 ​ ​ - Net loans ​ ​ 3,937,717 ​ ​ 3,818,303 ​ ​ - ​ ​ - ​ ​ 3,818,303 Interest rate swap and rate cap agreements ​ ​ 5,498 ​ ​ 5,498 ​ ​ - ​ ​ 5,498 ​ ​ - Interest rate lock commitments and forward contracts ​ ​ 55 ​ ​ 55 ​ ​ - ​ ​ 55 ​ ​ - Interest receivable on securities and loans ​ ​ 24,598 ​ ​ 24,598 ​ ​ - ​ ​ 24,598 ​ ​ - ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Noninterest bearing deposits ​ $ 1,704,920 ​ $ 1,704,920 ​ $ 1,704,920 ​ $ - ​ $ - Interest bearing deposits ​ ​ 3,063,811 ​ ​ 3,056,180 ​ ​ - ​ ​ 3,056,180 ​ ​ - Securities sold under repurchase agreements ​ ​ 36,657 ​ ​ 36,657 ​ ​ - ​ ​ 36,657 ​ ​ - Other short-term borrowings ​ ​ 20,000 ​ ​ 20,000 ​ ​ - ​ ​ 20,000 ​ ​ - Junior subordinated debentures ​ ​ 25,773 ​ ​ 21,444 ​ ​ - ​ ​ 21,444 ​ ​ - Subordinated debentures ​ ​ 59,467 ​ ​ 54,533 ​ ​ - ​ ​ 54,533 ​ ​ - Interest rate swap and rate cap agreements ​ ​ 3,187 ​ ​ 3,187 ​ ​ - ​ ​ 3,187 ​ ​ - Interest payable on deposits and borrowings ​ ​ 3,871 ​ ​ 3,871 ​ ​ - ​ ​ 3,871 ​ ​ - ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ ​ Carrying ​ Fair ​ ​ ​ ​ ​ ​ ​ Amount Value Level 1 Level 2 Level 3 Financial assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and due from banks ​ $ 55,534 ​ $ 55,534 ​ $ 55,534 ​ $ - ​ $ - Interest earning deposits with financial institutions ​ ​ 44,611 ​ ​ 44,611 ​ ​ 44,611 ​ ​ - ​ ​ - Securities available-for-sale ​ ​ 1,192,829 ​ ​ 1,192,829 ​ ​ 169,574 ​ ​ 1,007,926 ​ ​ 15,329 FHLBC and FRBC stock ​ ​ 33,355 ​ ​ 33,355 ​ ​ - ​ ​ 33,355 ​ ​ - Loans held-for-sale ​ ​ 1,322 ​ ​ 1,322 ​ ​ - ​ ​ 1,322 ​ ​ - Net loans ​ ​ 3,998,689 ​ ​ 3,876,381 ​ ​ - ​ ​ - ​ ​ 3,876,381 Interest rate swap and rate cap agreements ​ ​ 5,302 ​ ​ 5,302 ​ ​ - ​ ​ 5,302 ​ ​ - Interest receivable on securities and loans ​ ​ 27,159 ​ ​ 27,159 ​ ​ - ​ ​ 27,159 ​ ​ - ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Noninterest bearing deposits ​ $ 1,834,891 ​ $ 1,834,891 ​ $ 1,834,891 ​ $ - ​ $ - Interest bearing deposits ​ ​ 2,735,855 ​ ​ 2,726,223 ​ ​ - ​ ​ 2,726,223 ​ ​ - Securities sold under repurchase agreements ​ ​ 26,470 ​ ​ 26,470 ​ ​ - ​ ​ 26,470 ​ ​ - Other short-term borrowings ​ ​ 405,000 ​ ​ 405,000 ​ ​ - ​ ​ 405,000 ​ ​ - Junior subordinated debentures ​ ​ 25,773 ​ ​ 20,361 ​ ​ - ​ ​ 20,361 ​ ​ - Subordinated debentures ​ ​ 59,382 ​ ​ 47,982 ​ ​ - ​ ​ 47,982 ​ ​ - Interest rate swap and rate cap agreements ​ ​ 8,324 ​ ​ 8,324 ​ ​ - ​ ​ 8,324 ​ ​ - Interest rate lock commitments and forward contracts ​ ​ 10 ​ ​ 10 ​ ​ - ​ ​ 10 ​ ​ - Interest payable on deposits and borrowings ​ ​ 2,962 ​ ​ 2,962 ​ ​ - ​ ​ 2,962 ​ ​ - ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Financial Instruments with Off-

Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions	12 Months Ended
	Dec. 31, 2024
Derivative Excluding Mortgage Banking Derivatives
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions	Note 19: Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions ​ Risk Management Objective of Using Derivatives ​ The Company is exposed to certain risk arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its assets and liabilities and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s loan portfolio. ​ Cash Flow Hedges of Interest Rate Risk ​ The Company’s objectives in using interest rate derivatives are to add stability to interest income and expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. The aggregate fair value of the swaps are recorded in other assets or other liabilities with changes in fair value recorded in other comprehensive income, net of tax. The amount included in other comprehensive income would be reclassified to current earnings should all or a portion of the hedge no longer be considered effective. For derivatives designated and that qualify as cash flow hedges of interest rate risk, the gain or loss on the derivative is recorded in accumulated other comprehensive income and subsequently reclassified into interest income or interest expense in the same period(s) during which the hedged transaction affects earnings. Amounts reported in accumulated other comprehensive income related to derivatives will be reclassified to interest income or expense as interest payments are received on the variable rate loan pools or paid on the Company’s fixed-rate borrowings. ​ Interest rate swaps with notional amounts totaling $300.0 million as of both December 31, 2024 and 2023, were designated as cash flow hedges of certain variable rate commercial and commercial real estate loan pools. Each of these hedges were executed to pay variable and receive fixed rate cash flows. Each of these hedges was determined to be effective during all periods presented and the Company expects the hedges to remain effective during the remaining terms of the swaps. ​ An interest rate swap with a notional amount of $25.8 million as of December 31, 2024 and 2023, is designated as a cash flow hedge of junior subordinated debentures and was executed to pay fixed and receive variable rate cash flows. The hedge was determined to be effective during all periods presented and the Company expects the hedge to remain effective during the remaining terms of the swap. ​ ​ ​ During the next twelve months, the Company estimates that an additional $1.5 million will be reclassified as an increase to interest expense and an additional $404,000 will be reclassified as an increase to interest income. ​ Non-designated Hedges ​ Derivatives not designated as hedges are not speculative and result from a service the Company provides to certain customers. The Company executes interest rate swaps with commercial banking customers to facilitate their respective risk management strategies. The notional amounts of interest rate swaps with its loan customers as of December 31, 2024 and 2023 were $121.2 million and $104.8 million, respectively. Those interest rate swaps are simultaneously hedged by offsetting derivatives that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate derivatives associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer derivatives and the offsetting derivatives are recognized directly in earnings. ​ At December 31, 2024, the Company had $2.3 million of cash collateral pledged with one correspondent financial institution and held $5.2 million of cash pledged from two correspondent financial institutions to support the interest rate swap activity during 2024. At December 31, 2023, the Company had $7.3 million of cash collateral pledged with two correspondent financial institutions and held $4.1 million of cash pledged from one correspondent financial institution to support the interest rate swap activity during 2023. No investment securities were required to be pledged to any correspondent financial institution during 2024 or 2023. The Company offsets derivative assets and liabilities that are subject to a master netting arrangement. ​ The Company also grants mortgage loan interest rate lock commitments to borrowers, subject to normal loan underwriting standards. The interest rate risk associated with these loan interest rate lock commitments is managed with contracts for future deliveries of loans as well as selling forward mortgage-backed securities contracts. Loan interest rate lock commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. 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 notional amount of these commitments at December 31, 2024 and 2023 were $8.7 million and $8.4 million, respectively. Commitments to originate residential mortgage loans held-for-sale and forward commitments to sell residential mortgage loans or forward MBS contracts are considered derivative instruments and changes in the fair value are recorded to mortgage banking revenue. Fair values are estimated based on observable changes in mortgage interest rates including mortgage-backed securities prices from the date of the commitment. ​ ​ ​ The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Balance Sheets as of December 31, were as follows: ​ Fair Value of Derivative Instruments ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ No. of Trans. ​ Notional Amount $ ​ Balance Sheet Location Fair Value $ ​ Balance Sheet Location Fair Value $ Derivatives designated as hedging instruments ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements 5 ​ 325,774 ​ Other Assets 3,823 ​ Other Liabilities 1,512 Total derivatives designated as hedging instruments ​ ​ ​ ​ ​ 3,823 ​ ​ 1,512 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Derivatives not designated as hedging instruments ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swaps with commercial loan customers and rate cap 13 ​ 154,137 ​ Other Assets 1,675 ​ Other Liabilities 1,675 Interest rate lock commitments and forward contracts 30 ​ 8,667 ​ Other Assets 55 ​ Other Liabilities - Other contracts 5 ​ 58,259 ​ Other Assets 28 ​ Other Liabilities 5 Total derivatives not designated as hedging instruments ​ ​ ​ ​ ​ 1,758 ​ ​ 1,680 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ No. of Trans. ​ Notional Amount $ ​ Balance Sheet Location Fair Value $ ​ Balance Sheet Location Fair Value $ Derivatives designated as hedging instruments ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements 5 ​ 325,774 ​ Other Assets 2,576 ​ Other Liabilities 5,598 Total derivatives designated as hedging instruments ​ ​ ​ ​ ​ 2,576 ​ ​ 5,598 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Derivatives not designated as hedging instruments ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swaps with commercial loan customers 17 ​ 104,777 ​ Other Assets 2,726 ​ Other Liabilities 2,726 Interest rate lock commitments and forward contracts 24 ​ 8,375 ​ Other Assets (10) ​ Other Liabilities - Other contracts 4 ​ 44,790 ​ Other Assets 89 ​ Other Liabilities - Total derivatives not designated as hedging instruments ​ ​ ​ ​ ​ 2,805 ​ ​ 2,726 ​ Disclosure of the Effect of Fair Value and Cash Flow Hedge Accounting ​ The fair value and cash flow hedge accounting related to derivatives covered under ASC Subtopic 815-20 impacted Accumulated Other Comprehensive Income (“AOCI”) and the Income Statement. The gain recognized in AOCI on derivatives totaled $1.7 million as of December 31, 2024, and loss recognized in AOCI on derivatives totaled $2.2 million, and $4.2 million as of December 31, 2023, and 2022, respectively. The amount of the loss reclassified from AOCI to interest expense on the income statement totaled $6.0 million, $5.6 million and $373,000 for the years ended December 31, 2024, 2023, and 2022, respectively. ​ Credit-risk-related Contingent Features ​ For derivative transactions involving counterparties who are lending customers of the Company, the derivative credit exposure is managed through the normal credit review and monitoring process, which may include collateralization, financial covenants and/or financial guarantees of affiliated parties. Agreements with such customers require that losses associated with derivative transactions receive payment priority from any funds recovered should a customer default and ultimate disposition of collateral or guarantees occur. ​ Credit exposure to broker/dealer counterparties is managed through agreements with each derivative counterparty that require collateralization of fair value gains owed by such counterparties. Some small degree of credit exposure exists due to timing differences between when a gain may occur and the subsequent point in time that collateral is delivered to secure that gain. This is monitored by the Company and procedures are in place to minimize this exposure. Such agreements also require the Company to collateralize counterparties in circumstances wherein the fair value of the derivatives result in loss to the Company. ​ ​ ​ Other provisions of such agreements define certain events that may lead to the declaration of default and/or the early termination of the derivative transaction(s), including the following: ● if the Company either defaults or is capable of being declared in default on any of its indebtedness (exclusive of deposit obligations); ● if a merger occurs that materially changes the Company's creditworthiness in an adverse manner; or ● if certain specified adverse regulatory actions occur, such as the issuance of a Cease and Desist Order, or citations for actions considered Unsafe and Unsound or that may lead to the termination of deposit insurance coverage by the Federal Deposit Insurance Corporation.

Preferred Stock

Preferred Stock	12 Months Ended
	Dec. 31, 2024
Preferred Stock.
Preferred Stock	​ Note 20: Preferred Stock ​ Preferred stock of 300,000 shares is authorized but unissued as of December 31, 2024 and 2023. ​

Parent Company Condensed Financ

Parent Company Condensed Financial Information	12 Months Ended
	Dec. 31, 2024
Parent Company Condensed Financial Information
Parent Company Condensed Financial Information	Note 21: Parent Company Condensed Financial Information ​ Condensed Balance Sheets for the years ended December 31, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Assets ​ ​ ​ ​ ​ ​ ​ Noninterest bearing deposit with bank subsidiary ​ $ 78,007 ​ $ 36,686 ​ Investment in subsidiaries ​ 671,894 ​ 620,663 ​ Other assets ​ 7,457 ​ 6,183 ​ Total assets ​ $ 757,358 ​ $ 663,532 ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities and Stockholders’ Equity ​ ​ ​ ​ ​ ​ ​ Junior subordinated debentures ​ $ 25,773 ​ $ 25,773 ​ Subordinated debt ​ 59,467 ​ 59,382 ​ Senior notes ​ ​ - ​ ​ - ​ Notes payable ​ ​ - ​ ​ - ​ Other liabilities ​ 1,084 ​ 1,096 ​ Stockholders’ equity ​ 671,034 ​ 577,281 ​ Total liabilities and stockholders' equity ​ $ 757,358 ​ $ 663,532 ​ ​ Condensed Statements of Income for the years ended December 31 were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Operating Income ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash dividends received from subsidiaries ​ $ 55,000 ​ $ 65,000 ​ $ 40,000 Other income ​ 59 ​ 67 ​ 29 Total operating income ​ 55,059 ​ 65,067 ​ 40,029 Operating Expenses ​ ​ ​ ​ ​ ​ ​ ​ ​ Junior subordinated debentures ​ 1,127 ​ 1,095 ​ 1,136 Subordinated debt ​ ​ 2,185 ​ ​ 2,185 ​ ​ 2,185 Senior notes ​ ​ - ​ ​ 2,408 ​ ​ 2,682 Notes payable ​ - ​ 87 ​ 385 Other expenses ​ 6,209 ​ 5,947 ​ 5,086 Total operating expense ​ 9,521 ​ 11,722 ​ 11,474 Income before income taxes and equity in undistributed net income of subsidiaries ​ 45,538 ​ 53,345 ​ 28,555 Income tax benefit ​ (2,644) ​ (3,309) ​ (3,216) Income before equity in undistributed net income of subsidiaries ​ 48,182 ​ 56,654 ​ 31,771 Equity in undistributed net income of subsidiaries ​ 37,082 ​ 35,075 ​ 35,634 Net income available to common stockholders ​ $ 85,264 ​ $ 91,729 ​ $ 67,405 ​ ​ ​ Condensed Statements of Cash Flows for the years ended December 31, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Cash Flows from Operating Activities ​ ​ ​ ​ ​ ​ ​ ​ ​ Net Income ​ $ 85,264 ​ $ 91,729 ​ $ 67,405 Adjustments to reconcile net income to net cash from operating activities: ​ ​ ​ ​ ​ ​ ​ ​ ​ Equity in undistributed net income of subsidiaries ​ (37,082) ​ (35,075) ​ (35,634) Provision for deferred tax (benefit) expense ​ (152) ​ (513) ​ 91 Change in taxes payable ​ (250) ​ 794 ​ (4,694) Change in other assets ​ 12 ​ (43) ​ 12 Stock-based compensation ​ 3,914 ​ 3,603 ​ 2,960 Other, net ​ 76 ​ 575 ​ (2,753) Net cash provided by operating activities ​ 51,782 ​ 61,070 ​ 27,387 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash Flows from Investing Activities ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash paid for acquisition, net of cash and cash equivalents retained ​ - ​ - ​ - Net cash provided by (used in) investing activities ​ - ​ - ​ - ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash Flows from Financing Activities ​ ​ ​ ​ ​ ​ ​ ​ ​ Dividend paid on common stock ​ ​ (9,413) ​ ​ (8,946) ​ ​ (8,877) Purchases of treasury stock ​ (1,048) ​ (605) ​ (455) Repayment of term note ​ ​ - ​ ​ (9,000) ​ ​ (4,000) Repayment of senior note ​ ​ - ​ ​ (45,000) ​ ​ - Net cash used in financing activities ​ (10,461) ​ (63,551) ​ (13,332) Net change in cash and cash equivalents ​ 41,321 ​ (2,481) ​ 14,055 Cash and cash equivalents at beginning of year ​ 36,686 ​ 39,167 ​ 25,112 Cash and cash equivalents at end of year ​ $ 78,007 ​ $ 36,686 ​ $ 39,167 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2024
Employee Benefit Plans
Employee Benefit Plans	Note 22: Employee Benefit Plans ​ Old Second Bancorp, Inc. Employees 401(k) Savings Plan and Trust The Company sponsors a qualified, tax-exempt defined contribution plan (the “401(k) Plan”) qualifying under section 401(k) of the Internal Revenue Code. Virtually all employees are eligible to participate after meeting certain age and service requirements. Eligible employees are permitted to contribute up to a dollar limit set by law of their compensation to the 401(k) Plan. For the years ended December 31, 2024, 2023 and 2022, a discretionary match equal to 100% of the first 3% and 50% of the next 2% was made to participants of the 401(k) Plan. Participants are 100% vested in the discretionary matching contributions. Participants can choose between several different investment options under the 401(k) Plan, including shares of the Company’s common stock. An additional component of the 401(k) Plan arrangement allows the Company to make annual discretionary profit sharing contributions based on the Company’s profitability in a given year, and on each participant’s annual compensation. The Company elected not to make a discretionary profit sharing contribution for the years end December 31, 2024, 2023 and 2022. ​ The total expense relating to the 401(k) Plan was approximately $2.3 million in 2024, $2.2 million in 2023 and $2.0 million in 2022. ​ Old Second Bancorp, Inc. Voluntary Deferred Compensation Plan for Executives and Directors ​ The Company sponsors a deferred compensation plan, which is a means by which certain executives and directors may voluntarily defer a portion of their salary, bonus and directors fees, as applicable. This plan is an unfunded, nonqualified deferred compensation arrangement. Company obligations under this arrangement of $8.0 million and $5.9 million as of December 31, 2024 and 2023, respectively, are included in other liabilities. ​

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2024
Segment Information
Segment Information	​ Note 23: Segment Information ​ Various identifiable operating segments provide a variety of revenue streams including loans, deposits, and wealth management services. The Company’s Chief Operating Decision Maker (CODM) is the Chief Financial Officer. ​ Through our wholly-owned subsidiary, Old Second National Bank, we offer a wide variety of community banking services primarily throughout the Chicagoland area, including commercial and consumer lending and deposit services, and a wide array of wealth management services. The accounting policies for the services discussed here are the same as those described in Note 1: Summary of Significant Accounting Policies. We earn interest income on portfolio loans, fee income on loan originations and commitments, fees charged on certain deposit accounts, as well as fees related to wealth management services. ​ Although information is available on each of the individual revenue streams, the CODM manages, allocates resources, and evaluates performance on a company-wide basis. The CODM uses consolidated net income to evaluate the financial performance of the Company’s business along with budget to actual results in assessing the Company’s performance and in determining the allocation of resources whether it be to reinvest in the Company or deploy capital in order to maximize shareholder value. The chief operating decision maker uses consolidated net income and return on average assets to benchmark the Company against competitors as well as against prior periods. ​ On a regular basis the CODM is provided consolidated income and expense, assets, liabilities, and equity, in the same manner that is presented publicly on the Consolidated Statements of Income and Consolidated Balance Sheets, to assess performance and allocate resources throughout the Company. Further, additional internal financial information is provided to the CODM in order to assess credit quality in each of our lending segments. Accordingly, the Company has determined that it has only one reportable segment, Community Banking. ​

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pay vs Performance Disclosure
Net Income (Loss)	$ 85,264	$ 91,729	$ 67,405

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Dec. 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

Insider Trading Policies and Pr

Insider Trading Policies and Procedures	12 Months Ended
	Dec. 31, 2024
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

Cybersecurity Risk Management a

Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
	Dec. 31, 2024
Cybersecurity Risk Management Strategy And Governance [Abstract]
Cybersecurity Risk Management Processes For Assessing Identifying And Managing Threats [Text Block]	Risk Management and Strategy ​ Cybersecurity risk is the risk of exposure to harm or loss resulting from misuse or abuse of technology by malicious actors. Cybersecurity risk is an important and continuously evolving focus for us as significant resources are devoted to protecting and enhancing the security of computer systems, software, networks, storage devices, and other technology assets. Security efforts are designed to protect against, among other things, cybersecurity attacks by unauthorized parties attempting to obtain access to confidential information, destroy data, disrupt or degrade service, sabotage systems or cause other damage. We recognize the critical importance of developing, implementing, and maintaining robust cybersecurity measures to safeguard our information systems and protect the confidentiality, integrity, and availability of our data. We have experienced, and expect that we will continue to experience, a higher volume and complexity of cyber-attacks. We have implemented precautionary measures and controls reasonably designed that follow the National Institute of Standards and Technology (NIST) and other industry standards to address this increased risk. ​ Managing Material Risks & Integrated Overall Risk Management ​ We have strategically integrated cybersecurity risk management into our broader risk management framework to promote a company-wide culture of cybersecurity risk management. This integration ensures that cybersecurity considerations are an integral part of our decision-making processes at every level. Our risk management team works closely with our IT department to continuously evaluate and address cybersecurity risks in alignment with our strategic objectives, business environment and operational needs. ​ ​ ​ Engage Third-parties on Risk Management ​ Ongoing business expansions may expose us to potential new threats as well as expanded regulatory scrutiny including the introduction of new cybersecurity requirements. We continue to make significant investments in enhancing our cyber defense-in-depth capabilities and to strengthen our partnerships with the appropriate government and law enforcement agencies and other businesses in order to understand the full spectrum of cybersecurity risks in the operating environment, enhance defenses and improve resiliency against cybersecurity threats. Recognizing the complexity and evolving nature of cybersecurity threats, we engage with a range of external experts, including cybersecurity assessors, consultants, and auditors in evaluating and testing our risk management systems. These partnerships enable us to leverage specialized knowledge and insights, ensuring our cybersecurity strategies and processes. Our collaboration with these third-parties includes regular audits, threat assessments, and consultation on security enhancements. ​ Oversee Third-party Risk ​ Third parties with which the Company does business or that facilitate the organization’s business activities (e.g., vendors, supply chain, exchanges, clearing houses, etc.) are also sources of cybersecurity risk. Third-party cybersecurity incidents such as system breakdowns or failures, misconduct by the employees of such parties, or cyber-attacks, including ransomware and supply-chain compromises, could affect their ability to deliver a product or service or result in lost or compromised information. Because we are aware of the risks associated with third-party service providers, we implement stringent processes to oversee and manage these risks. We conduct thorough security assessments of all third-party providers before engagement and maintain ongoing monitoring to ensure compliance with our cybersecurity standards. Monitoring includes quarterly assessments by our Chief Information Security Officer (“CISO”) and on an ongoing basis by our security engineers. This approach is designed to mitigate risks related to data breaches or other security incidents originating from third-parties.
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	We have strategically integrated cybersecurity risk management into our broader risk management framework to promote a company-wide culture of cybersecurity risk management. This integration ensures that cybersecurity considerations are an integral part of our decision-making processes at every level. Our risk management team works closely with our IT department to continuously evaluate and address cybersecurity risks in alignment with our strategic objectives, business environment and operational needs.
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight And Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected Or Reasonably Likely To Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board Of Directors Oversight [Text Block]	Our Board of Directors is acutely aware of the critical nature of managing risks associated with cybersecurity threats. Our Board has established robust oversight mechanisms to ensure effective governance in managing risks associated with cybersecurity threats because we recognize the significance of these threats to our operational integrity and stakeholder confidence. Board of Directors Oversight Our Information Technology Steering Committee (“ITSC”) is central to the Board’s oversight of cybersecurity risks, which are incorporated into our overall risk management program overseen by our Board Risk Committee. These Committees meet no less than quarterly and are composed of board members with diverse expertise including risk management, technology, and finance, equipping them to oversee cybersecurity risks effectively. While, as of the date of this Annual Report on Form 10-K, we have not encountered cybersecurity challenges that have materially impaired our operations or financial standing, our systems and those of our customers and third-party service providers are under constant threat and it is possible that we could experience a significant event in the future. Reporting to Board of Directors ​ The CISO, in his capacity, regularly informs the ITSC and Board Risk Committee of all aspects related to cybersecurity risks and incidents. This ensures that the highest levels of management are kept abreast of the cybersecurity posture and potential risks we face. Furthermore, significant cybersecurity matters and strategic risk management decisions are escalated to the Board of Directors, ensuring that they have comprehensive oversight and can provide guidance on critical cybersecurity issues.
Cybersecurity Risk Board Committee Or Subcommittee Responsible For Oversight [Text Block]	Information Technology Steering Committee
Cybersecurity Risk Process For Informing Board Committee Or Subcommittee Responsible For Oversight [Text Block]	The Chief Risk Officer (“CRO”) and the CISO play a pivotal role in informing the ITSC and Board Risk Committee on cybersecurity risks. Comprehensive briefings are presented to the ITSC and Board Risk Committee on a regular basis, with a minimum frequency of quarterly. These briefings encompass a broad range of topics, including: ● Maturity of our cyber landscape commensurate to inherent risks of environment; ● Emerging threats; ● Status of ongoing cybersecurity initiatives and strategies; ● Incident reports and learnings from any cybersecurity events; ● Compliance with regulatory requirements and industry standards; and ● Results of internal and external testing of cybersecurity controls.
Cybersecurity Risk Role Of Management [Text Block]	Management’s Role Managing Risk ​ While the ITSC and our Board of Directors to which it reports oversees cybersecurity risk management, management is responsible for the day-to-day cybersecurity risk management processes. The Chief Risk Officer (“CRO”) and the CISO play a pivotal role in informing the ITSC and Board Risk Committee on cybersecurity risks. Comprehensive briefings are presented to the ITSC and Board Risk Committee on a regular basis, with a minimum frequency of quarterly. These briefings encompass a broad range of topics, including: ​ ● Maturity of our cyber landscape commensurate to inherent risks of environment; ● Emerging threats; ● Status of ongoing cybersecurity initiatives and strategies; ● Incident reports and learnings from any cybersecurity events; ● Compliance with regulatory requirements and industry standards; and ● Results of internal and external testing of cybersecurity controls. ​ In addition to our scheduled meetings, CISO maintains an ongoing dialogue with management and the Board of Directors regarding emerging or potential cybersecurity risks. Together, they receive updates on any significant developments in the cybersecurity domain, ensuring the Board’s oversight is proactive and responsive. The CISO actively participates in strategic decisions related to cybersecurity, offering guidance and approval for major initiatives. This involvement ensures that cybersecurity considerations are integrated into our broader strategic objectives. The CISO conducts a quarterly review of our cybersecurity posture and the effectiveness of our risk management strategies. This review helps in identifying areas for improvement and ensuring the alignment of cybersecurity efforts with the overall risk management framework. ​ ​ Risk Management Personnel ​ Primary responsibility for assessing, monitoring and managing our cybersecurity risks rests with the CISO. With over 30 years of experience in the field of cybersecurity and operational risk, he brings a wealth of expertise to his role. His background includes extensive experience as an enterprise CISO and holds several certifications including ISACA’s, CISM and CRISC and is well-recognized within the industry. His in-depth knowledge and experience are instrumental in developing and executing our cybersecurity strategies. Our CISO oversees our governance programs, tests our compliance with standards, remediates known risks, and leads our employee cybersecurity training program. ​ The CISO is responsible for identifying technology and cybersecurity risks and is responsible for the controls to manage threats. To help safeguard the confidentiality, integrity and availability of our infrastructure, resources and information, we maintain an Information Security Program designed to prevent, detect, and respond to cyberattacks. The ITSC and Board of Directors is periodically provided with updates on the Information Security Program, recommended changes, cybersecurity policies and practices, ongoing efforts to improve security, as well as our efforts regarding significant cybersecurity events. ​ The CISO manages the Security Operations Center (SOC) and is responsible for implementing and maintaining controls designed to detect and defend us against cyber-attacks and includes a dedicated function for incident response and ongoing monitoring for cybersecurity threats and vulnerabilities, including those among the Bank’s third-party suppliers. The CISO conducts a quarterly review of our inherent risk posture against the effectiveness of our cyber risk management strategies. This review helps in measuring the effectiveness of controls and identifying areas for improvement ensuring cyber controls is commensurate with our inherent risk profile and the Board’s risk appetite. ​ Monitoring Cybersecurity Incidents ​ The CISO continually monitors for the latest developments in cybersecurity, including potential threats and innovative risk management techniques. We deploy defense-in-depth safeguards that are designed to protect our information systems from cybersecurity threats, including firewalls, intrusion prevention and detection systems, anti-malware functionality, access controls, and ongoing vulnerability assessments as well as ongoing acquisition of knowledge crucial for the effective prevention, detection, mitigation, and remediation of cybersecurity incidents. The CISO implements and oversees processes for the regular monitoring of our information systems. This includes the deployment of advanced security measures and regular system audits to identify potential vulnerabilities. In the event of a cybersecurity incident, the CISO is equipped with a well-defined incident response plan. This plan includes immediate actions to mitigate the impact and prevent escalation of any loss or damage from the cybersecurity incident. The Incident Response Plan is continually updated in response to an ever-changing threat landscape to provide long-term strategies for remediation, prevention of future incidents and resiliency to all types of threats. The incident response teams (i) include subject matter experts to address cyber threats and (ii) includes representatives from the accounting team to monitor threat escalation and identify events that may warrant Board notification and a Form 8-K cybersecurity notice. ​ Reporting to Board of Directors ​ The CISO, in his capacity, regularly informs the ITSC and Board Risk Committee of all aspects related to cybersecurity risks and incidents. This ensures that the highest levels of management are kept abreast of the cybersecurity posture and potential risks we face. Furthermore, significant cybersecurity matters and strategic risk management decisions are escalated to the Board of Directors, ensuring that they have comprehensive oversight and can provide guidance on critical cybersecurity issues.
Cybersecurity Risk Management Positions Or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions Or Committees Responsible [Text Block]	CISO
Cybersecurity Risk Management Expertise Of Management Responsible [Text Block]	Primary responsibility for assessing, monitoring and managing our cybersecurity risks rests with the CISO. With over 30 years of experience in the field of cybersecurity and operational risk, he brings a wealth of expertise to his role. His background includes extensive experience as an enterprise CISO and holds several certifications including ISACA’s, CISM and CRISC and is well-recognized within the industry. His in-depth knowledge and experience are instrumental in developing and executing our cybersecurity strategies. Our CISO oversees our governance programs, tests our compliance with standards, remediates known risks, and leads our employee cybersecurity training program. ​ The CISO is responsible for identifying technology and cybersecurity risks and is responsible for the controls to manage threats. To help safeguard the confidentiality, integrity and availability of our infrastructure, resources and information, we maintain an Information Security Program designed to prevent, detect, and respond to cyberattacks. The ITSC and Board of Directors is periodically provided with updates on the Information Security Program, recommended changes, cybersecurity policies and practices, ongoing efforts to improve security, as well as our efforts regarding significant cybersecurity events. ​ The CISO manages the Security Operations Center (SOC) and is responsible for implementing and maintaining controls designed to detect and defend us against cyber-attacks and includes a dedicated function for incident response and ongoing monitoring for cybersecurity threats and vulnerabilities, including those among the Bank’s third-party suppliers. The CISO conducts a quarterly review of our inherent risk posture against the effectiveness of our cyber risk management strategies. This review helps in measuring the effectiveness of controls and identifying areas for improvement ensuring cyber controls is commensurate with our inherent risk profile and the Board’s risk appetite.
Cybersecurity Risk Process For Informing Management Or Committees Responsible [Text Block]	The CISO continually monitors for the latest developments in cybersecurity, including potential threats and innovative risk management techniques. We deploy defense-in-depth safeguards that are designed to protect our information systems from cybersecurity threats, including firewalls, intrusion prevention and detection systems, anti-malware functionality, access controls, and ongoing vulnerability assessments as well as ongoing acquisition of knowledge crucial for the effective prevention, detection, mitigation, and remediation of cybersecurity incidents. The CISO implements and oversees processes for the regular monitoring of our information systems. This includes the deployment of advanced security measures and regular system audits to identify potential vulnerabilities. In the event of a cybersecurity incident, the CISO is equipped with a well-defined incident response plan. This plan includes immediate actions to mitigate the impact and prevent escalation of any loss or damage from the cybersecurity incident. The Incident Response Plan is continually updated in response to an ever-changing threat landscape to provide long-term strategies for remediation, prevention of future incidents and resiliency to all types of threats. The incident response teams (i) include subject matter experts to address cyber threats and (ii) includes representatives from the accounting team to monitor threat escalation and identify events that may warrant Board notification and a Form 8-K cybersecurity notice.
Cybersecurity Risk Management Positions Or Committees Responsible Report To Board [Flag]	true

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2024
Summary of Significant Accounting Policies
Nature of Operations	Nature of Operations ​ The consolidated financial statements of the Company include the financial statements of the Bank and its wholly-owned subsidiaries, River Street Advisors, LLC, an investment advisory/management service company, Old Second Affordable Housing Fund, L.L.C., which provides down payment assistance for home ownership to qualified individuals, and Station I, LLC, Station II, LLC, and Station III, LLC, which hold property acquired by the Bank through foreclosure or in the ordinary course of collecting a debt previously contracted with borrowers. The Company uses the accrual basis of accounting for financial reporting purposes. Certain amounts in prior year financial statements have been reclassified to conform to the 2024 presentation.
Use of Estimates	Use of Estimates
Principles of Consolidation	Principles of Consolidation –
Segment Reporting	Segment Reporting
Concentration of Credit Risk	Concentration of Credit Risk
Cash and Cash Equivalents	Cash and Cash Equivalents
Securities	Securities ​ Realized securities gains or losses, which are reported in securities losses, net, in the Consolidated Statements of Income, are recognized on a trade date basis and are determined using the specific identification method. Discounts are accreted into interest income over the estimated life of the related security and premiums are amortized into income to the earlier of the call date or estimated life of the related security using the level yield method. ​ The Company has made a policy election to exclude accrued interest income from the amortized cost basis of available-for-sale debt securities and report accrued interest separately in other assets in the Consolidated Balance Sheets. A debt security is placed on nonaccrual status at the time we no longer expect to receive all contractual amounts due, which is generally at 90 days past due. Accrued interest for a security placed on nonaccrual is reversed against interest income. Accordingly, we do not recognize an allowance for credit loss against accrued interest receivable. ​ ​ For available-for-sale debt securities in an unrealized loss position, we first assess whether we intend to sell, or it is more likely than not that we will be required to sell the security, prior to the recovery of its amortized cost basis. If either of the above criteria is met, the security’s amortized cost basis is written down to fair value through earnings. When the criteria above is not met, we evaluate whether the decline in fair value is the result of credit losses or other factors. In making this assessment, we review changes to the rating of the security by a rating agency, an increase in defaults on the underlying collateral, and the extent to which the securities are issued by the federal government or its agencies, including the amount of the guarantee issued by those agencies, among other factors. If this assessment indicates that a credit loss exists, we compare the present value of cash flows expected to be collected from the security with the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis for the security, a credit loss exists and an allowance for credit losses is recorded through earnings, limited to the amount that the fair value of the security is less than its amortized cost basis. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive (loss) income, net of taxes. ​ Changes in the allowance for credit losses are recorded as a provision for (or reversal of) credit loss expense. Losses are charged against the allowance when management believes the uncollectibility of an available for sale debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met.
Federal Home Loan Bank and Federal Reserve Bank Stock	Federal Home Loan Bank and Federal Reserve Bank Stock
Loans Held-for-Sale	Loans Held-for-Sale ​ Mortgage loans held for sale are generally sold with servicing rights retained. The carrying value of mortgage loans is reduced by the amount allocated to the servicing right. Gains and losses on sales of mortgage loans are based on the difference between the selling price and the carrying value of the related sold loan.
Loans	Loans ​ Interest income on loans is accrued based on principal amounts outstanding. Loan and lease origination fees, commitment fees, and certain direct loan origination costs are deferred and amortized over the life of the related loans or commitments as a yield adjustment. Fees related to standby letters of credit, whose ultimate exercise is remote, are amortized into fee income over the estimated life of the commitment. Other related fees are recognized as fee income when earned. ​ Past Due and Nonaccrual Loans ​ 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. Generally, loans are placed on nonaccrual status (i) when either principal or interest payments become 90 days or more past due based on contractual terms unless the loan is sufficiently collateralized such that full repayment of both principal and interest is expected and is in the process of collection within a reasonable period or (ii) when an individual analysis of a borrower’s creditworthiness indicates a credit should be placed on nonaccrual status whether or not the loan is 90 days or more past due. When a loan is placed on nonaccrual status, unpaid interest credited to income is reversed. Interest received on such loans is accounted for on the cash-basis or cost recovery method, until qualifying for return to accrual. Under the cost-recovery method, interest income is not recognized until the loan balance is reduced to zero. Under the cash basis method, interest income is recorded when the payment is received in cash. Nonaccrual loans are returned to accrual status when the financial position of the borrower and other relevant factors indicate there is no longer doubt that the Company will collect all principal and interest due. ​ ​ ​ Purchase Credit Deteriorated (PCD) Loans ​ Purchased credit deteriorated loans (“PCD loans”) are purchased loans, that, as of the date of acquisition, have experienced a more-than-insignificant deterioration in credit quality since origination, as determined by the Company’s assessment. An allowance for credit losses is determined using the same methodology as other loans held for investment. The initial allowance for credit losses determined on an individual loan basis from an evaluation of each specific loan and its related credit metrics. The sum of the loan’s purchase price and initial allowance for credit losses becomes its initial amortized cost basis. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is accreted or amortized into interest income over the life of the loan. Expected cash flows in excess of the amount paid are recorded as interest income over the remaining life of the loans (accretable yield). The excess of the loan’s contractual principal and interest over expected cash flows is not recorded (nonaccretable difference). ​ Subsequent changes to the allowance for credit losses are recorded through provision for credit losses. Over the life of the loan, expected cash flows continue to be estimated. If the present value of expected cash flows is less than the carrying amount, a loss is recorded as a provision for credit losses. If the present value of expected cash flows is greater than the carrying value, it is recognized as part of future interest income. ​ Non-Purchase Credit Deteriorated (Non-PCD) Loans ​ Non-purchased credit deteriorated loans (“non-PCD loans”) are purchased loans, that, as of the date of acquisition, have not experienced a significant deterioration in credit quality since origination, as determined by the Company’s assessment. An allowance for credit losses is determined using the same methodology as other loans held for investment, and no allowance is established as a Day One fair valuation allowance. The sum of the loan’s purchase price net of any related credit and interest rate premium or discount becomes its initial amortized cost basis. The difference between the initial amortized cost basis and the par value of the loan is a discount or premium, which is comprised of an interest component and a credit component, and is accreted or amortized into interest income over the life of the loan. Expected cash flows in excess of the amount paid are recorded as interest income over the remaining life of the loans (accretable yield). The excess of the loan’s contractual principal and interest over expected cash flows is not recorded (nonaccretable difference). ​ A subsequent Day Two adjustment on non-PCD loans is recorded to the allowance for credit losses immediately after acquisition, which reflects the future estimated lifetime credit losses on the non-PCD loans, recorded through the provision for credit losses. Over the life of the loan, expected cash flows continue to be estimated. If the present value of expected cash flows is less than the carrying amount, a loss is recorded as a provision for credit losses. If the present value of expected cash flows is greater than the carrying value, it is recognized as part of future interest income.
Allowance for Credit Losses ("ACL")	Allowance for Credit Losses (“ACL”) ​ ACL on Loans ​ The ACL on loans is a valuation account that is deducted from the amortized cost basis of loans to present the net amount expected to be collected on loans. The Company’s estimate of the ACL for loans reflects losses expected over the remaining contractual life of the loans. The contractual term does not consider extensions, renewals or modifications. ​ Determination of the ACL on loans is inherently subjective in nature since it requires significant estimates and management judgment, and includes a level of imprecision given the difficulty of identifying and assessing the factors impacting loan repayment and estimating the timing and amount of losses. While management utilizes its best judgment and information available, the ultimate adequacy of the ACL is dependent upon a variety of factors beyond the Company’s direct control, including, but not limited to, the performance of the loan portfolio, consideration of current economic trends, changes in interest rates and property values, estimated losses on pools of homogeneous loans based on an analysis that uses historical loss experience for prior periods that are determined to have like characteristics with the current period such as pre-recessionary, recessionary, or recovery periods, portfolio growth and concentration risk, management and staffing changes, the interpretation of loan risk classifications by regulatory authorities and other credit market factors. While each component of the ACL on loans is determined separately, the entire balance is available for the entire loan portfolio. ​ The ACL methodology consists of measuring loans on a collective (pool) basis when similar risk characteristics exist. The type of credit composition and risk characteristics of each portfolio segment are as follows:
Lease financing receivables	Lease financing receivables –
Premises and Equipment	Premises and Equipment ​ Whenever events or changes in circumstances dictate, the Company tests its long-lived assets for impairment by determining whether the sum of the estimated undiscounted future cash flows attributable to a long-lived asset or asset group is less than the carrying value of the long-lived asset or asset group through a probability-weighted approach. In the event the carrying amount of the long-lived asset or asset group is not recoverable, an impairment loss is measured as the amount by which the carrying amount of the long-lived asset or asset group exceeds its fair value. ​ ​ All of the Company’s leases are classified as operating leases at inception. The Company leases certain branch locations and equipment; leased equipment is primarily Automated Teller Machines (ATMs). The Company records leases on the balance sheet in the form of a lease liability at the present value of future minimum payments under the terms of the lease and as a right-of-use asset equal to the lease liability adjusted for items such as deferred or prepaid rent, lease incentives, and any impairment of the right-of-use asset if it should arise. The discount rate used in determining the lease liability is based on the incremental borrowing rates the Company could obtain for similar loans as of the date of the commencement or renewal. The Company does not record short-term leases with an initial lease term of one year or less on the Consolidated Balance Sheets. ​ At lease inception, the Company determines the lease term by considering the noncancelable lease term and all option renewal periods the Company deems reasonably certain to renew. The lease term is also used to calculate the straight-line basis. Leasehold improvements are amortized over the shorter of the useful life or the estimated lease term. ​ Operating lease expense consists of a single lease cost allocated over the remaining lease term on a straight-line basis, and any impairment of the right-of-use asset. Lease expense is included in occupancy, furniture, and equipment on the Company’s Consolidated Statements of Income. The Company’s variable lease expense includes items such as common area maintenance, utilities, parking, and property taxes, which are reported within occupancy, furniture, and equipment on the Consolidated Statements of Income.
Other Real Estate Owned ("OREO")	Other Real Estate Owned (“OREO”) ​
Mortgage Servicing Rights ("MSRs")	Mortgage Servicing Rights (“MSRs”) ​ Mortgage loans that the Company is servicing for others aggregated to $709.1 million and $737.2 million at December 31, 2024, and 2023, respectively. Mortgage loans that the Company is servicing for others are not included in the Consolidated Balance Sheets. Fees received in connection with servicing loans for others are recognized as earned. Loan servicing costs are charged to expense as incurred. ​ Servicing rights are recognized separately as assets when they are acquired through sales of loans and servicing rights are retained. Servicing rights are initially recorded at fair value with the effect recorded in net gains on sales of mortgage loans in the Consolidated Statements of Income. Fair value is based on market prices for comparable mortgage servicing contracts, when available, or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. The valuation model incorporates assumptions that market participants would use in estimating future net servicing income, such as the cost to service, the discount rate, the custodial earnings rate, an inflation rate, ancillary income, prepayment speeds and default rates and losses. ​ Servicing fee income, which is included in the Consolidated Statements of Income as mortgage servicing income, is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal or a fixed amount per loan and are recorded as income when earned. ​ Under the fair value measurement method, the Company measures mortgage servicing rights at fair value at each reporting date, reports changes in fair value of servicing assets in earnings in the period in which the changes occur, and includes these changes in MSRs mark to market values in the Consolidated Statements of Income. The fair values of MSRs are subject to significant fluctuations as a result of interest rates, changes in estimated and actual prepayment speeds and default rates and losses. ​ ​ ​ Transfers of Financial Assets – ​ Transfers of a portion of a loan must meet the criteria of a participating interest. If it does not meet the criteria of a participating interest, the transfer must be accounted for as a secured borrowing. In order to meet the criteria for a participating interest, all cash flows from the loan must be divided proportionately, the rights of each loan holder must have the same priority, and the loan holders must have no recourse to the transferor other than standard representations and warranties and no loan holder has the right to pledge or exchange the entire loan. ​ The Company sells financial assets in the normal course of business, the majority of which are related to residential mortgage loan sales through established programs, and commercial loan sales through participation agreements. In accordance with accounting guidance for asset transfers, the Company considers any ongoing involvement with transferred assets in determining whether the assets can be derecognized from the balance sheet. With the exception of servicing and certain performance-based guarantees, the Company’s continuing involvement with financial assets sold is minimal and generally limited to market customary representation and warranty clauses. ​ When the Company sells financial assets, it may retain servicing rights and/or other interests in the financial assets. The gain or loss on sale depends on the previous carrying amount of the transferred financial assets, the servicing right recognized, the consideration received, and any liabilities incurred in exchange for the transferred assets. Upon transfer, any servicing assets and other interests held by the Company are carried at the lower of cost or fair value, with the exception of mortgage servicing rights related to sales of residential mortgage loans, which are carried at fair value.
Bank-Owned Life Insurance ("BOLI")	Bank-Owned Life Insurance (“BOLI”)
Goodwill and Core Deposit Intangible	Goodwill and Core Deposit Intangible ​ The Company performed a qualitative assessment of goodwill as of November 30, 2024 which resulted in the fair value of the Company exceeding the carrying value; therefore, it was determined goodwill was not impaired at December 31, 2024. On November 30, 2023, the Company performed a qualitative assessment of goodwill from which we concluded it was more likely than not that goodwill was not impaired as of December 31, 2023. A quantitative assessment is performed every third year as a matter of periodic practice rather than as a response to a qualitative assessment or triggering event. ​ The core deposit intangible (“CDI”) is being amortized on an accelerated method over a ten year estimated useful life. As of December 31, 2024, CDI totaled $22.0 million compared to $11.2 million at December 31, 2023. The total CDI amount reflects the transaction with First Merchants Bank in 2024, the acquisition of West Suburban in 2021 as well as ABC Bank in 2018, and the Talmer Bank branch purchase in 2016. Total CDI amortization expense of $2.4 million, $2.5 million, and $2.6 million was recorded in 2024, 2023, and 2022, respectively. The expected future annual amortization expense for each of the next five years (2025-2029) is approximately $4.1 million, $3.7 million, $3.3 million, $2.9 million, and $2.6 million, respectively.
Debt Issuance Costs	Debt Issuance Costs –
Loss Contingencies	Loss Contingencies –
Noninterest Income	Noninterest Income ​ Wealth management ​ Service charges on deposits – includes fees and income received by the Company for performing various services, such as deposit account maintenance fees, overdraft coverage and processing fees, stop payment charges, and other deposit account related services. Revenue is recognized based on the service agreement in place, and is recorded when the service is provided to the customer. This item is net of any service charge refunds or return charge refunds. ​ Card related income
Advertising Costs	​ Advertising Costs
Equity Incentive Plan	Equity Incentive Plan
Income Taxes	Income Taxes ​ Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using the enacted tax rates that are expected to apply to taxable income in years in which those temporary differences are expected to be recovered or settled. ​ As of December 31, 2024 and 2023, the Company evaluated tax positions taken for filings with the Internal Revenue Service and all state jurisdictions in which it operates. The Company believes that income tax filing positions will be sustained under examination and does not anticipate any adjustments that would result in a material adverse effect on the Company’s financial condition, results of operations, or cash flows. Accordingly, the Company has not recorded any material reserves or related accruals for interest and penalties for uncertain tax positions at December 31, 2024 and 2023. The Company is no longer subject to examination by the Internal Revenue Service for tax years prior to 2021. State statutes vary, but generally, the Company is no longer subject to state tax examinations for tax years ended prior to 2020.
Earnings Per Common Share ("EPS")	Earnings Per Common Share (“EPS”)
Treasury Stock	​ Treasury Stock
Derivative Financial Instruments	Derivative Financial Instruments ​ If it is determined that the derivative instrument is not highly effective as a hedge, hedge accounting is discontinued, and the adjustment to fair value of the derivative instrument is recorded in earnings. For a derivative used to hedge changes in cash flows associated with forecasted transactions, the gain or loss on the effective portion of the derivative is deferred and reported as a component of accumulated other comprehensive income, which is a component of stockholders’ equity, until such time the hedged transaction affects earnings. For derivative instruments not accounted for as hedges, changes in fair value are recognized in noninterest income/expense. Counterparty risk with loan customers is managed through loan covenant agreements and, as such, does not have a significant impact on the fair value of the swaps. Counterparty risk with other banks is managed through bilateral collateralization agreements. Deferred gains and losses from derivatives not accounted for as hedges and that are terminated are amortized over the shorter of the original remaining term of the derivative or the remaining life of the underlying asset or liability.
Comprehensive Income	Comprehensive Income
Recent Accounting Pronouncements	Recent Accounting Pronouncements : ​ ASU 2023-06 ​ ASU 2023-09 ​ ​ ASU 2024-01 ​ ASU 2024-02 ​ ASU 2024-03
Subsequent Events	Subsequent Events ​ On January 21, 2025 , the Company’s Board of Directors declared a cash dividend of $0.06 per share payable on February 10, 2025 , to stockholders of record as of January 31, 2025 . On February 24, 2025, Old Second and Bancorp Financial, Inc. (“Bancorp Financial”) entered into an Agreement and Plan of Merger (the “merger agreement”). The merger agreement provides that, upon the terms and subject to the conditions set forth therein, Bancorp Financial will merge with and into Old Second, with Old Second continuing as the surviving entity (the “merger”). Immediately following the merger, Evergreen Bank Group (“Evergreen Bank”), an Illinois state-chartered bank and wholly-owned subsidiary of Bancorp Financial, will merge with and into Old Second National Bank, a national banking association and wholly-owned subsidiary of Old Second, with Old Second National Bank continuing as the surviving bank (the “bank merger”). ​ Subject to the terms and conditions of the merger agreement, at the effective time of the merger, each Bancorp Financial stockholder will receive 2.5814 shares of Old Second common stock and $15.93 in cash for each share of Bancorp Financial common stock owned by the stockholder. Holders of Bancorp Financial common stock, subject to certain exceptions, will also be entitled to receive cash in lieu of fractional shares of Old Second common stock. ​ The parties to the merger expect to complete the merger in the third quarter of 2025, subject to satisfaction of closing conditions, including receipt of customary required regulatory approvals and the approval of the merger agreement by the Bancorp Financial stockholders.
Mortgage Banking Derivatives.
Summary of Significant Accounting Policies
Derivative Financial Instruments	Mortgage Banking Derivatives – As part of the ongoing residential mortgage business, the Company enters into mortgage banking derivatives such as forward contracts and interest rate lock commitments. The derivatives and loans held-for-sale are carried at fair value with the changes in fair value recorded in current earnings. The net gain or loss on mortgage banking derivatives is included in net gains on sales of loans in the Consolidated Statements of Income .
Commercial
Summary of Significant Accounting Policies
Loans	Commercial loans
Real estate - commercial loans
Summary of Significant Accounting Policies
Loans	Real estate - commercial loans - ● CRE owner occupied – the Company classifies five different risk levels within this segment to assign a loss rate based on historical losses, as well as utilizing a forecasted average unemployment rate and Gross Domestic Product (“GDP”) for the next twelve months as a loss driver. ● CRE investor – the Company classifies five different risk levels within this segment to assign a loss rate based on historical losses, as well as utilizing a forecasted average unemployment rate and GDP for the next twelve months as a loss driver. The primary difference between this segment and CRE owner occupied is within the slightly elevated historical loss rates.
Real estate - residential loans
Summary of Significant Accounting Policies
Loans	Real estate - residential loans ● Residential owner-occupied – these loans are secured by 1-4 family residential dwellings that are primary or secondary residences and the Company holds a first lien position. The Company applies historical loss rates from periods with like characteristics as the current period, with a longer remaining life than other segments, due to the often longer-term nature of these loans. ● Residential investor – these loans are secured by 1-4 family residential dwellings that are not a primary or secondary residence and the Company holds a first lien position. The Company applies historical loss rates from periods with like characteristics as the current period, with a slightly longer remaining life than other segments, but shorter duration than residential owner-occupied. ● Multifamily – these loans are secured by 5+ unit residential dwellings and the Company typically holds a first lien position. The Company classifies five different risk levels within this segment to assign a loss rate based on historical losses, as well as utilizing a forecasted average unemployment rate and GDP for the next twelve months as a loss driver.
Consumer
Summary of Significant Accounting Policies
Loans	Home equity lines of credit (“HELOCs”) ​ Consumer loans ​ The methodologies used for calculating the ACL on each loan segment include (i) a migration analysis for commercial, CRE owner occupied, CRE investor, and multifamily segments; (ii) a static pool analysis for construction, leases, residential investor, residential owner occupied and the HELOC segments; and (iii) a WARM (weighted average remaining maturity) methodology is used for consumer segments. The forecast period used for each segment calculation was one year, with an immediate reversion to historical loss rates following this one year period. In addition, the Company applies qualitative adjustments to each different loan, as described below. ​ ​ ​ The qualitative factors applied to each ● changes in lending policies and procedures, including changes in underwriting standards and collections, charge-offs and recovery practices; ● changes in international, national, regional, and local conditions (specific factors which impact portfolios or discrepancies with national economic factors which are utilized within the economic forecast); ● changes in the experience, depth and ability of lending management; ● changes in the volume and severity of past due loans and other similar loan conditions; ● changes in the nature and volume of the loan portfolio and terms of loans; ● the existence and effect of any concentrations of credit and changes in the levels of such concentrations (this characteristic requires any portfolio exceeding 25% of capital to have a factor considered unless the pool is otherwise well diversified or holds a relatively low inherent risk); ● effects of other external factors, such as competition, legal or regulatory factors, on the level of estimated credit losses; ● changes in the quality of our loan review functions; and ● changes in the value of underlying collateral for collateral dependent loans. ​ The impact of the above listed internal and external qualitative and credit market risk factors is assessed within predetermined ranges to adjust the ACL totals calculated. Changes in the above factors are assessed no less than quarterly, and directly impact the total estimated credit losses recorded. ​ Loans that do not share risk characteristics are evaluated on an individual basis. Such loans evaluated individually are not also included in the collective evaluation. The amount of expected credit loss is measured based upon the present value of expected future cash flows discounted at the loan’s effective interest rate or the fair value of the underlying collateral less applicable selling costs. When management determines that foreclosure is probable, the amount of credit loss is determined using the fair value of collateral, less costs to sell. ​ Loans are charged off against the ACL when management believes the uncollectibility of a loan balance is confirmed, while recoveries of amounts previously charged-off are credited to the ACL. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged off. Approved releases from previously established ACL reserves authorized under our ACL methodology also reduce the ACL. Additions to the ACL are established through the provision for credit losses on loans, which is charged to expense. The Company’s ACL methodology is intended to reflect all loan portfolio risk, but management recognizes the inability to accurately depict all future credit losses in a current ACL estimate, as the impact of various factors cannot be fully known. Accrued interest receivable on loans is excluded from the amortized cost basis of financing receivables for the purpose of determining the allowance for credit losses. ​ ACL on Unfunded Loan Commitments ​ The Company estimates expected credit losses over the contractual period in which the Company is exposed to credit risk by a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Company. The ACL related to off-balance sheet credit exposures, which is within other liabilities on the Company’s Consolidated Balance Sheets, is estimated at each balance sheet date under the CECL model, and is adjusted as determined necessary through the provision for credit losses on the income statement. The estimate for ACL on unfunded loan commitments includes consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded over its estimated life.
Real estate - construction | Real estate - commercial loans
Summary of Significant Accounting Policies
Loans	Real estate - construction loans

Acquisition (Tables)

Acquisition (Tables)	12 Months Ended
	Dec. 31, 2024
Acquisition
Summary of acquisition	​ ​ ​ ​ ​ First Merchants Transaction Summary As of Date of Transaction ​ ​ ​ ​ ​ ​ December 6, 2024 Assets ​ ​ ​ Cash and due from banks ​ $ 419 Loans, net of purchase accounting adjustments ​ ​ 7,149 Premises and equipment ​ ​ 3,934 Core deposit intangible ​ ​ 13,254 Other assets ​ ​ 19 Total assets ​ $ 24,775 ​ ​ ​ ​ Liabilities ​ ​ ​ Noninterest bearing demand ​ $ 26,497 Savings, NOW and money market ​ ​ 157,126 Time ​ ​ 84,373 Total deposits ​ ​ 267,996 Other liabilities ​ ​ 585 Total liabilities ​ ​ 268,581 ​ ​ ​ ​ Cash consideration received ​ ​ (237,023) Total liabilities assumed and cash consideration received for transaction ​ $ 31,558 Goodwill ​ $ 6,783

Securities (Tables)

Securities (Tables)	12 Months Ended
	Dec. 31, 2024
Securities
Schedule of amortized cost and fair value of the securities portfolio and corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive loss	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross ​ Gross ​ ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair December 31, 2024 Cost 1 Gains Losses ​ Value Securities available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury ​ $ 193,902 ​ $ 700 ​ $ (459) ​ $ 194,143 U.S. government agencies ​ ​ 39,202 ​ ​ - ​ ​ (1,388) ​ ​ 37,814 U.S. government agencies mortgage-backed ​ ​ 112,241 ​ ​ - ​ ​ (11,964) ​ ​ 100,277 States and political subdivisions ​ ​ 226,969 ​ ​ 264 ​ ​ (11,777) ​ ​ 215,456 Collateralized mortgage obligations ​ ​ 411,170 ​ ​ 647 ​ ​ (43,201) ​ ​ 368,616 Asset-backed securities ​ ​ 64,215 ​ ​ 69 ​ ​ (1,981) ​ ​ 62,303 Collateralized loan obligations ​ ​ 182,629 ​ ​ 472 ​ ​ (9) ​ ​ 183,092 Total securities available-for-sale ​ $ 1,230,328 ​ $ 2,152 ​ $ (70,779) ​ $ 1,161,701 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross ​ Gross ​ ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair December 31, 2023 Cost 1 Gains Losses ​ Value Securities available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury ​ $ 174,602 ​ $ - ​ $ (5,028) ​ $ 169,574 U.S. government agencies ​ ​ 60,011 ​ ​ - ​ ​ (3,052) ​ ​ 56,959 U.S. government agencies mortgage-backed ​ ​ 118,492 ​ ​ - ​ ​ (12,122) ​ ​ 106,370 States and political subdivisions ​ ​ 236,072 ​ ​ 1,325 ​ ​ (10,332) ​ ​ 227,065 Collateralized mortgage obligations ​ ​ 442,987 ​ ​ 421 ​ ​ (50,864) ​ ​ 392,544 Asset-backed securities ​ ​ 71,616 ​ ​ 42 ​ ​ (3,222) ​ ​ 68,436 Collateralized loan obligations ​ ​ 173,201 ​ ​ 30 ​ ​ (1,350) ​ ​ 171,881 Total securities available-for-sale ​ $ 1,276,981 ​ $ 1,818 ​ $ (85,970) ​ $ 1,192,829 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1 Excludes interest receivable of $7.1 million and $6.6 million at December 31, 2024 and December 31, 2023, respectively, that is recorded in other assets on the Consolidated Balance Sheets.
Schedule of fair value, amortized cost and weighted average yield of debt securities by contractual maturity along with securities not due at a single maturity date, primarily mortgage-backed securities (MBS), asset-backed securities, and collateralized loan obligations	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ ​ Amortized ​ Average ​ ​ Fair ​ Securities available-for-sale Cost Yield ​ Value Due in one year or less ​ $ 94,725 ​ 2.94 % ​ $ 94,598 ​ Due after one year through five years ​ ​ 154,689 ​ 3.64 ​ ​ ​ 153,679 ​ Due after five years through ten years ​ ​ 100,601 ​ 2.91 ​ ​ ​ 94,215 ​ Due after ten years ​ ​ 110,058 ​ 3.20 ​ ​ ​ 104,921 ​ ​ ​ ​ 460,073 ​ 3.23 ​ ​ ​ 447,413 ​ Mortgage-backed and collateralized mortgage obligations ​ ​ 523,411 ​ 2.57 ​ ​ ​ 468,893 ​ Asset-backed securities ​ ​ 64,215 ​ 3.70 ​ ​ ​ 62,303 ​ Collateralized loan obligations ​ ​ 182,629 ​ 6.08 ​ ​ ​ 183,092 ​ Total securities available-for-sale ​ $ 1,230,328 ​ 3.40 % ​ $ 1,161,701 ​
Schedule of securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position	Securities with unrealized losses with no corresponding allowance for credit losses at December 31, 2024 and 2023 aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, were as follows (in thousands except for number of securities): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ 12 months or more ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ in an unrealized loss position ​ in an unrealized loss position ​ Total ​ ​ Number of ​ Unrealized ​ Fair ​ Number of ​ Unrealized ​ Fair ​ Number of ​ Unrealized ​ Fair Securities available-for-sale Securities Losses Value Securities Losses Value Securities Losses Value U.S. Treasuries ​ 4 ​ $ 72 ​ $ 49,788 ​ 1 ​ $ 387 ​ $ 49,547 ​ 5 ​ $ 459 ​ $ 99,335 U.S. government agencies ​ - ​ ​ - ​ ​ - ​ 8 ​ ​ 1,388 ​ ​ 37,814 ​ 8 ​ ​ 1,388 ​ ​ 37,814 U.S. government agencies mortgage-backed ​ 1 ​ ​ 447 ​ ​ 10,296 ​ 128 ​ ​ 11,517 ​ ​ 89,981 ​ 129 ​ ​ 11,964 ​ ​ 100,277 States and political subdivisions ​ 31 ​ ​ 455 ​ ​ 85,457 ​ 27 ​ ​ 11,322 ​ ​ 111,308 ​ 58 ​ ​ 11,777 ​ ​ 196,765 Collateralized mortgage obligations ​ 3 ​ ​ 24 ​ ​ 5,107 ​ 139 ​ ​ 43,177 ​ ​ 328,708 ​ 142 ​ ​ 43,201 ​ ​ 333,815 Asset-backed securities ​ 2 ​ ​ 4 ​ ​ 1,068 ​ 13 ​ ​ 1,977 ​ ​ 50,198 ​ 15 ​ ​ 1,981 ​ ​ 51,266 Collateralized loan obligations ​ 4 ​ ​ 8 ​ ​ 31,440 ​ 1 ​ ​ 1 ​ ​ 227 ​ 5 ​ ​ 9 ​ ​ 31,667 Total securities available-for-sale ​ 45 ​ $ 1,010 ​ $ 183,156 ​ 317 ​ $ 69,769 ​ $ 667,783 ​ 362 ​ $ 70,779 ​ $ 850,939 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ 12 months or more ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ in an unrealized loss position ​ in an unrealized loss position ​ Total ​ ​ Number of ​ Unrealized ​ ​ Fair ​ Number of ​ Unrealized ​ ​ Fair ​ Number of ​ Unrealized ​ ​ Fair Securities available-for-sale Securities Losses ​ Value Securities Losses ​ Value Securities Losses ​ Value U.S. Treasuries ​ - ​ $ - ​ $ - ​ 4 ​ $ 5,028 ​ $ 169,574 ​ 4 ​ $ 5,028 ​ $ 169,574 U.S. government agencies ​ - ​ ​ - ​ ​ - ​ 9 ​ ​ 3,052 ​ ​ 56,959 ​ 9 ​ ​ 3,052 ​ ​ 56,959 U.S. government agencies mortgage-backed ​ - ​ ​ - ​ ​ - ​ 128 ​ ​ 12,122 ​ ​ 106,370 ​ 128 ​ ​ 12,122 ​ ​ 106,370 States and political subdivisions ​ 12 ​ ​ 137 ​ ​ 27,974 ​ 25 ​ ​ 10,195 ​ ​ 106,138 ​ 37 ​ ​ 10,332 ​ ​ 134,112 Collateralized mortgage obligations ​ 2 ​ ​ 8 ​ ​ 734 ​ 143 ​ ​ 50,856 ​ ​ 376,236 ​ 145 ​ ​ 50,864 ​ ​ 376,970 Asset-backed securities ​ - ​ ​ - ​ ​ - ​ 19 ​ ​ 3,222 ​ ​ 63,941 ​ 19 ​ ​ 3,222 ​ ​ 63,941 Collateralized loan obligations ​ - ​ ​ - ​ ​ - ​ 25 ​ ​ 1,350 ​ ​ 150,902 ​ 25 ​ ​ 1,350 ​ ​ 150,902 Total securities available-for-sale ​ 14 ​ $ 145 ​ $ 28,708 ​ 353 ​ $ 85,825 ​ $ 1,030,120 ​ 367 ​ $ 85,970 ​ $ 1,058,828 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
Schedule of securities available for sale net realized gains (losses)	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ ​ December 31, ​ Securities available-for-sale 2024 2023 2022 ​ Proceeds from sales of securities ​ $ 5,331 ​ $ 205,738 ​ $ 30,981 ​ Gross realized gains on securities ​ 1 ​ - ​ - ​ Gross realized losses on securities ​ (1) ​ (4,148) ​ (944) ​ Net realized losses ​ $ — ​ $ (4,148) ​ $ (944) ​ Income tax benefit on net realized losses ​ $ — ​ $ 1,117 ​ $ 265 ​ Effective tax rate applied ​ ​ N/M % ​ 26.9 % ​ 28.1 %

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses on Loans (Tables)	12 Months Ended
	Dec. 31, 2024
Loans and Allowance for Credit Losses on Loans
Schedule of major classifications of loans	​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 December 31, 2023 Commercial ​ $ 800,476 ​ $ 841,697 Leases ​ ​ 491,748 ​ ​ 398,223 Commercial real estate – investor ​ ​ 1,078,829 ​ ​ 1,034,424 Commercial real estate – owner occupied ​ ​ 683,283 ​ ​ 796,538 Construction ​ ​ 201,716 ​ ​ 165,380 Residential real estate – investor ​ ​ 49,598 ​ ​ 52,595 Residential real estate – owner occupied ​ ​ 206,949 ​ ​ 226,248 Multifamily ​ ​ 351,325 ​ ​ 401,696 HELOC ​ ​ 103,388 ​ ​ 103,237 Other 1 ​ ​ 14,024 ​ ​ 22,915 Total loans ​ ​ 3,981,336 ​ ​ 4,042,953 Allowance for credit losses on loans ​ ​ (43,619) ​ ​ (44,264) Net loans 2 ​ $ 3,937,717 ​ $ 3,998,689 ​ 1 Unless otherwise noted, the “Other” segment includes consumer loans and overdrafts in this table and in subsequent tables within Note 5 - Loans and Allowance for Credit Losses on Loans. ​ 2 Excludes accrued interest receivable of $17.5 million and $20.5 million at December 31, 2024 and December 31, 2023, respectively, which is recorded in other assets on the Consolidated Balance Sheets.
Schedule of changes in the allowance for loan losses by segment of loans based on method of impairment	​ ​ ​ The following tables represent the activity in the ACL for loans for the years ended December 31, 2024, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning ​ Provision for ​ ​ ​ ​ ​ Ending ​ ​ Balance ​ (Release of) ​ ​ ​ ​ ​ Balance Allowance for credit losses January 1, 2024 Credit Losses Charge-offs Recoveries December 31, 2024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ $ 3,998 ​ $ 12,352 ​ $ 8,686 ​ $ 149 ​ $ 7,813 Leases ​ ​ 2,952 ​ ​ (770) ​ ​ 149 ​ ​ 103 ​ ​ 2,136 Commercial real estate – investor ​ ​ 17,105 ​ ​ 1,594 ​ ​ 4,596 ​ ​ 425 ​ ​ 14,528 Commercial real estate – owner occupied ​ ​ 12,280 ​ ​ (997) ​ ​ 5,154 ​ ​ 3,907 ​ ​ 10,036 Construction ​ ​ 1,038 ​ ​ 2,543 ​ ​ - ​ ​ - ​ ​ 3,581 Residential real estate – investor ​ ​ 669 ​ ​ (141) ​ ​ - ​ ​ 25 ​ ​ 553 Residential real estate – owner occupied ​ ​ 1,821 ​ ​ (106) ​ ​ 242 ​ ​ 36 ​ ​ 1,509 Multifamily ​ ​ 2,728 ​ ​ (852) ​ ​ - ​ ​ - ​ ​ 1,876 HELOC ​ ​ 1,656 ​ ​ (169) ​ ​ - ​ ​ 91 ​ ​ 1,578 Other ​ ​ 17 ​ ​ 130 ​ ​ 284 ​ ​ 146 ​ ​ 9 Total ​ $ 44,264 ​ $ 13,584 ​ $ 19,111 ​ $ 4,882 ​ $ 43,619 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning ​ Provision for ​ ​ ​ ​ ​ ​ Ending Allowance for credit losses ​ Balance ​ (Release of) ​ ​ ​ ​ ​ ​ Balance ​ January 1, 2023 Credit Losses Charge-offs Recoveries ​ December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ $ 11,968 ​ $ (7,717) ​ $ 885 ​ $ 632 ​ $ 3,998 Leases ​ ​ 2,865 ​ ​ 850 ​ ​ 882 ​ ​ 119 ​ ​ 2,952 Commercial real estate – investor ​ ​ 10,674 ​ ​ 18,170 ​ ​ 11,816 ​ ​ 77 ​ ​ 17,105 Commercial real estate – owner occupied ​ ​ 15,001 ​ ​ 7,941 ​ ​ 10,691 ​ ​ 29 ​ ​ 12,280 Construction ​ ​ 1,546 ​ ​ (608) ​ ​ - ​ ​ 100 ​ ​ 1,038 Residential real estate – investor ​ ​ 768 ​ ​ (129) ​ ​ - ​ ​ 30 ​ ​ 669 Residential real estate – owner occupied ​ ​ 2,046 ​ ​ (304) ​ ​ - ​ ​ 79 ​ ​ 1,821 Multifamily ​ ​ 2,453 ​ ​ 275 ​ ​ - ​ ​ - ​ ​ 2,728 HELOC ​ ​ 1,806 ​ ​ (255) ​ ​ - ​ ​ 105 ​ ​ 1,656 Other ​ ​ 353 ​ ​ (137) ​ ​ 368 ​ ​ 169 ​ ​ 17 Total ​ $ 49,480 ​ $ 18,086 ​ $ 24,642 ​ $ 1,340 ​ $ 44,264 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning ​ Provision for ​ ​ ​ ​ ​ ​ ​ ​ Ending Allowance for credit losses ​ Balance ​ (Release of) ​ ​ ​ ​ ​ ​ ​ ​ Balance ​ January 1, 2022 Credit Losses ​ Charge-offs ​ Recoveries ​ December 31, 2022 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ $ 11,751 ​ $ 273 ​ $ 151 ​ $ 95 ​ $ 11,968 Leases ​ ​ 3,480 ​ ​ (246) ​ ​ 371 ​ ​ 2 ​ ​ 2,865 Commercial real estate – investor ​ ​ 10,795 ​ ​ 1,199 ​ ​ 1,401 ​ ​ 81 ​ ​ 10,674 Commercial real estate – owner occupied ​ ​ 4,913 ​ ​ 10,117 ​ ​ 133 ​ ​ 104 ​ ​ 15,001 Construction ​ ​ 3,373 ​ ​ (1,827) ​ ​ - ​ ​ - ​ ​ 1,546 Residential real estate – investor ​ ​ 760 ​ ​ (22) ​ ​ - ​ ​ 30 ​ ​ 768 Residential real estate – owner occupied ​ ​ 2,832 ​ ​ (1,010) ​ ​ 2 ​ ​ 226 ​ ​ 2,046 Multifamily ​ ​ 3,675 ​ ​ (1,285) ​ ​ - ​ ​ 63 ​ ​ 2,453 HELOC ​ ​ 2,510 ​ ​ (844) ​ ​ - ​ ​ 140 ​ ​ 1,806 Other ​ ​ 192 ​ ​ 395 ​ ​ 402 ​ ​ 168 ​ ​ 353 Total ​ $ 44,281 ​ $ 6,750 ​ $ 2,460 ​ $ 909 ​ $ 49,480
Schedule of collateral dependent loans and related loan allowances.	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Accounts ​ ​ ​ ​ ​ ​ ​ ACL December 31, 2024 ​ Real Estate ​ Receivable ​ Equipment ​ Other ​ Total ​ Allocation Commercial ​ $ - ​ $ 6,491 ​ $ - ​ $ - ​ $ 6,491 ​ $ 2,448 Leases ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Commercial real estate – investor ​ ​ 1,644 ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,644 ​ ​ - Commercial real estate – owner occupied ​ ​ 10,018 ​ ​ - ​ ​ - ​ ​ - ​ ​ 10,018 ​ ​ 3,951 Construction ​ ​ 5,800 ​ ​ - ​ ​ - ​ ​ - ​ ​ 5,800 ​ ​ 792 Residential real estate – investor ​ ​ 404 ​ ​ - ​ ​ - ​ ​ - ​ ​ 404 ​ ​ - Residential real estate – owner occupied ​ ​ 1,056 ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,056 ​ ​ - Multifamily ​ ​ 836 ​ ​ - ​ ​ - ​ ​ - ​ ​ 836 ​ ​ - HELOC ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Other ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Total ​ $ 19,758 ​ $ 6,491 ​ $ - ​ $ - ​ $ 26,249 ​ $ 7,191 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Accounts ​ ​ ​ ​ ​ ​ ​ ACL December 31, 2023 ​ Real Estate ​ Receivable ​ Equipment ​ Other ​ Total ​ Allocation Commercial ​ $ 837 ​ $ 797 ​ $ - ​ $ - ​ $ 1,634 ​ $ 2 Leases ​ ​ - ​ ​ - ​ ​ 321 ​ ​ - ​ ​ 321 ​ ​ 320 Commercial real estate – investor ​ ​ 15,735 ​ ​ - ​ ​ - ​ ​ - ​ ​ 15,735 ​ ​ 3,656 Commercial real estate – owner occupied ​ ​ 34,894 ​ ​ - ​ ​ - ​ ​ - ​ ​ 34,894 ​ ​ 3,900 Construction ​ ​ 7,162 ​ ​ - ​ ​ - ​ ​ - ​ ​ 7,162 ​ ​ - Residential real estate – investor ​ ​ 422 ​ ​ - ​ ​ - ​ ​ - ​ ​ 422 ​ ​ - Residential real estate – owner occupied ​ ​ 1,506 ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,506 ​ ​ - Multifamily ​ ​ 1,402 ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,402 ​ ​ - HELOC ​ ​ 39 ​ ​ - ​ ​ - ​ ​ - ​ ​ 39 ​ ​ - Other ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Total ​ $ 61,997 ​ $ 797 ​ $ 321 ​ $ - ​ $ 63,115 ​ $ 7,878 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
Schedule of aged analysis of past due loans by class of loans	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 90 days or ​ ​ ​ ​ ​ ​ ​ ​ 90 Days or ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Greater Past ​ ​ 30-59 Days ​ 60-89 Days ​ Greater Past ​ Total Past ​ ​ ​ ​ ​ ​ ​ Due and December 31, 2024 ​ Past Due Past Due Due Due Current Total Loans Accruing Commercial ​ $ 219 ​ $ 95 ​ $ 6,963 ​ $ 7,277 ​ $ 793,199 ​ $ 800,476 ​ $ 1,397 Leases ​ ​ 1,438 ​ ​ 372 ​ ​ 352 ​ ​ 2,162 ​ ​ 489,586 ​ ​ 491,748 ​ ​ - Commercial real estate – investor ​ ​ 2,021 ​ ​ 402 ​ ​ - ​ ​ 2,423 ​ ​ 1,076,406 ​ ​ 1,078,829 ​ ​ - Commercial real estate – owner occupied ​ ​ 1,123 ​ ​ 2,479 ​ ​ 43 ​ ​ 3,645 ​ ​ 679,638 ​ ​ 683,283 ​ ​ - Construction ​ ​ - ​ ​ - ​ ​ 5,799 ​ ​ 5,799 ​ ​ 195,917 ​ ​ 201,716 ​ ​ - Residential real estate – investor ​ ​ 763 ​ ​ - ​ ​ 439 ​ ​ 1,202 ​ ​ 48,396 ​ ​ 49,598 ​ ​ - Residential real estate – owner occupied ​ ​ 2,489 ​ ​ 90 ​ ​ 509 ​ ​ 3,088 ​ ​ 203,861 ​ ​ 206,949 ​ ​ - Multifamily ​ ​ - ​ ​ 233 ​ ​ 1,040 ​ ​ 1,273 ​ ​ 350,052 ​ ​ 351,325 ​ ​ - HELOC ​ ​ 109 ​ ​ 74 ​ ​ 202 ​ ​ 385 ​ ​ 103,003 ​ ​ 103,388 ​ ​ 39 Other ​ ​ 13 ​ ​ 10 ​ ​ - ​ ​ 23 ​ ​ 14,001 ​ ​ 14,024 ​ ​ - Total ​ $ 8,175 ​ $ 3,755 ​ $ 15,347 ​ $ 27,277 ​ $ 3,954,059 ​ $ 3,981,336 ​ $ 1,436 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 90 days or ​ ​ ​ ​ ​ ​ ​ ​ 90 Days or ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Greater Past ​ ​ 30-59 Days ​ 60-89 Days ​ Greater Past ​ Total Past ​ ​ ​ ​ ​ ​ ​ Due and December 31, 2023 ​ Past Due Past Due Due Due Current Total Loans Accruing Commercial ​ $ 982 ​ $ - ​ $ 1,228 ​ $ 2,210 ​ $ 839,487 ​ $ 841,697 ​ $ 1,155 Leases ​ ​ 599 ​ ​ - ​ ​ 347 ​ ​ 946 ​ ​ 397,277 ​ ​ 398,223 ​ ​ - Commercial real estate – investor ​ ​ 1,209 ​ ​ - ​ ​ 6,087 ​ ​ 7,296 ​ ​ 1,027,128 ​ ​ 1,034,424 ​ ​ - Commercial real estate – owner occupied ​ ​ 2,103 ​ ​ 3,726 ​ ​ 15,645 ​ ​ 21,474 ​ ​ 775,064 ​ ​ 796,538 ​ ​ - Construction ​ ​ 2,540 ​ ​ 307 ​ ​ 7,161 ​ ​ 10,008 ​ ​ 155,372 ​ ​ 165,380 ​ ​ - Residential real estate – investor ​ ​ 540 ​ ​ 579 ​ ​ 168 ​ ​ 1,287 ​ ​ 51,308 ​ ​ 52,595 ​ ​ - Residential real estate – owner occupied ​ ​ 553 ​ ​ 125 ​ ​ 1,944 ​ ​ 2,622 ​ ​ 223,626 ​ ​ 226,248 ​ ​ - Multifamily ​ ​ 1,085 ​ ​ - ​ ​ 233 ​ ​ 1,318 ​ ​ 400,378 ​ ​ 401,696 ​ ​ - HELOC ​ ​ 565 ​ ​ 1,396 ​ ​ 269 ​ ​ 2,230 ​ ​ 101,007 ​ ​ 103,237 ​ ​ 41 Other ​ ​ - ​ ​ 1 ​ ​ - ​ ​ 1 ​ ​ 22,914 ​ ​ 22,915 ​ ​ - Total ​ $ 10,176 ​ $ 6,134 ​ $ 33,082 ​ $ 49,392 ​ $ 3,993,561 ​ $ 4,042,953 ​ $ 1,196 ​
Schedule of loans on nonaccrual for which there was no related allowance	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nonaccrual loan detail December 31, 2024 With no ACL ​ December 31, 2023 With no ACL Commercial ​ $ 5,591 ​ $ 497 ​ $ 870 ​ $ 870 Leases ​ ​ 523 ​ ​ 523 ​ ​ 639 ​ ​ 318 Commercial real estate – investor ​ ​ 1,981 ​ ​ 1,981 ​ ​ 16,572 ​ ​ 8,926 Commercial real estate – owner occupied ​ ​ 10,604 ​ ​ 1,407 ​ ​ 34,946 ​ ​ 8,429 Construction ​ ​ 5,800 ​ ​ - ​ ​ 7,162 ​ ​ 7,162 Residential real estate – investor ​ ​ 1,158 ​ ​ 1,158 ​ ​ 1,331 ​ ​ 1,331 Residential real estate – owner occupied ​ ​ 1,653 ​ ​ 1,653 ​ ​ 3,078 ​ ​ 3,078 Multifamily ​ ​ 1,165 ​ ​ 1,165 ​ ​ 1,775 ​ ​ 1,775 HELOC ​ ​ 366 ​ ​ 366 ​ ​ 1,210 ​ ​ 1,210 Other ​ ​ 10 ​ ​ 10 ​ ​ - ​ ​ - Total ​ $ 28,851 ​ $ 8,760 ​ $ 67,583 ​ $ 33,099
Schedule of credit quality indicators by class of loans	Credit quality indicators by class of loans as of December 31, 2024 were as follows in the vintage table below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 2021 2020 Prior Revolving Loans Revolving Loans Converted To Term Loans Total Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 299,863 ​ $ 176,549 ​ $ 56,619 ​ $ 18,679 ​ $ 4,999 ​ $ 6,527 ​ $ 201,514 ​ $ 1,279 ​ $ 766,029 Special Mention ​ ​ 3,864 ​ ​ 1,629 ​ ​ 127 ​ ​ 176 ​ ​ - ​ ​ - ​ ​ 3,903 ​ ​ - ​ ​ 9,699 Substandard ​ ​ - ​ ​ 14 ​ ​ 4,169 ​ ​ 77 ​ ​ - ​ ​ - ​ ​ 19,102 ​ ​ - ​ ​ 23,362 Doubtful ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,386 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,386 Total commercial ​ ​ 303,727 ​ ​ 178,192 ​ ​ 60,915 ​ ​ 20,318 ​ ​ 4,999 ​ ​ 6,527 ​ ​ 224,519 ​ ​ 1,279 ​ ​ 800,476 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Leases ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 239,664 ​ ​ 151,372 ​ $ 66,379 ​ ​ 24,546 ​ ​ 6,145 ​ ​ 2,298 ​ ​ - ​ ​ - ​ ​ 490,404 Special Mention ​ ​ - ​ ​ - ​ ​ 821 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 821 Substandard ​ ​ - ​ ​ - ​ ​ 523 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 523 Total leases ​ ​ 239,664 ​ ​ 151,372 ​ ​ 67,723 ​ ​ 24,546 ​ ​ 6,145 ​ ​ 2,298 ​ ​ - ​ ​ - ​ ​ 491,748 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate – investor ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 243,983 ​ ​ 159,008 ​ ​ 305,506 ​ ​ 191,651 ​ ​ 90,245 ​ ​ 67,143 ​ ​ 6,804 ​ ​ - ​ ​ 1,064,340 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ 335 ​ ​ 1,645 ​ ​ - ​ ​ - ​ ​ - ​ ​ 12,509 ​ ​ - ​ ​ - ​ ​ 14,489 Total commercial real estate – investor ​ ​ 244,318 ​ ​ 160,653 ​ ​ 305,506 ​ ​ 191,651 ​ ​ 90,245 ​ ​ 79,652 ​ ​ 6,804 ​ ​ - ​ ​ 1,078,829 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate – owner occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 91,012 ​ ​ 114,255 ​ ​ 133,488 ​ ​ 121,652 ​ ​ 77,919 ​ ​ 82,820 ​ ​ 14,284 ​ ​ - ​ ​ 635,430 Special Mention ​ ​ - ​ ​ 1,162 ​ ​ 7,908 ​ ​ 7,500 ​ ​ 3,033 ​ ​ 631 ​ ​ - ​ ​ - ​ ​ 20,234 Substandard ​ ​ - ​ ​ 125 ​ ​ 1,168 ​ ​ 11,241 ​ ​ 9,897 ​ ​ 5,188 ​ ​ - ​ ​ - ​ ​ 27,619 Total commercial real estate – owner occupied ​ ​ 91,012 ​ ​ 115,542 ​ ​ 142,564 ​ ​ 140,393 ​ ​ 90,849 ​ ​ 88,639 ​ ​ 14,284 ​ ​ - ​ ​ 683,283 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 44,699 ​ ​ 27,928 ​ ​ 83,222 ​ ​ 17,747 ​ ​ 82 ​ ​ 1,081 ​ ​ 468 ​ ​ - ​ ​ 175,227 Special Mention ​ ​ - ​ ​ - ​ ​ 6,794 ​ ​ - ​ ​ - ​ ​ 344 ​ ​ - ​ ​ - ​ ​ 7,138 Substandard ​ ​ - ​ ​ - ​ ​ 19,351 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 19,351 Total construction ​ ​ 44,699 ​ ​ 27,928 ​ ​ 109,367 ​ ​ 17,747 ​ ​ 82 ​ ​ 1,425 ​ ​ 468 ​ ​ - ​ ​ 201,716 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential real estate – investor ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 5,595 ​ ​ 3,833 ​ ​ 13,366 ​ ​ 8,060 ​ ​ 5,693 ​ ​ 9,813 ​ ​ 1,548 ​ ​ - ​ ​ 47,908 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ 375 ​ ​ 532 ​ ​ - ​ ​ 783 ​ ​ - ​ ​ - ​ ​ 1,690 Total residential real estate – investor ​ ​ 5,595 ​ ​ 3,833 ​ ​ 13,741 ​ ​ 8,592 ​ ​ 5,693 ​ ​ 10,596 ​ ​ 1,548 ​ ​ - ​ ​ 49,598 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential real estate – owner occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 11,609 ​ ​ 29,670 ​ ​ 35,786 ​ ​ 32,760 ​ ​ 22,996 ​ ​ 71,507 ​ ​ 770 ​ ​ - ​ ​ 205,098 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ - ​ ​ 151 ​ ​ - ​ ​ 1,700 ​ ​ - ​ ​ - ​ ​ 1,851 Total residential real estate – owner occupied ​ ​ 11,609 ​ ​ 29,670 ​ ​ 35,786 ​ ​ 32,911 ​ ​ 22,996 ​ ​ 73,207 ​ ​ 770 ​ ​ - ​ ​ 206,949 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Multifamily ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 39,133 ​ ​ 68,781 ​ ​ 68,032 ​ ​ 100,049 ​ ​ 29,060 ​ ​ 44,735 ​ ​ 370 ​ ​ - ​ ​ 350,160 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ 962 ​ ​ - ​ ​ 203 ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,165 Total multifamily ​ ​ 39,133 ​ ​ 68,781 ​ ​ 68,994 ​ ​ 100,049 ​ ​ 29,263 ​ ​ 44,735 ​ ​ 370 ​ ​ - ​ ​ 351,325 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ HELOC ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 2,602 ​ ​ 2,561 ​ ​ 2,118 ​ ​ 383 ​ ​ 1,383 ​ ​ 3,752 ​ ​ 90,042 ​ ​ - ​ ​ 102,841 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 39 ​ ​ 214 ​ ​ 294 ​ ​ - ​ ​ 547 Total HELOC ​ ​ 2,602 ​ ​ 2,561 ​ ​ 2,118 ​ ​ 383 ​ ​ 1,422 ​ ​ 3,966 ​ ​ 90,336 ​ ​ - ​ ​ 103,388 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 6,521 ​ ​ 1,559 ​ ​ 1,438 ​ ​ 639 ​ ​ 92 ​ ​ 7 ​ ​ 3,758 ​ ​ ​ ​ ​ 14,014 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ ​ ​ ​ - Substandard ​ ​ - ​ ​ 5 ​ ​ 5 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ ​ ​ ​ 10 Total other ​ ​ 6,521 ​ ​ 1,564 ​ ​ 1,443 ​ ​ 639 ​ ​ 92 ​ ​ 7 ​ ​ 3,758 ​ ​ - ​ ​ 14,024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 984,681 ​ ​ 735,516 ​ ​ 765,954 ​ ​ 516,166 ​ ​ 238,614 ​ ​ 289,683 ​ ​ 319,558 ​ ​ 1,279 ​ ​ 3,851,451 Special Mention ​ ​ 3,864 ​ ​ 2,791 ​ ​ 15,650 ​ ​ 7,676 ​ ​ 3,033 ​ ​ 975 ​ ​ 3,903 ​ ​ - ​ ​ 37,892 Substandard ​ ​ 335 ​ ​ 1,789 ​ ​ 26,553 ​ ​ 12,001 ​ ​ 10,139 ​ ​ 20,394 ​ ​ 19,396 ​ ​ - ​ ​ 90,607 Doubtful ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,386 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,386 Total loans ​ $ 988,880 ​ $ 740,096 ​ $ 808,157 ​ $ 537,229 ​ $ 251,786 ​ $ 311,052 ​ $ 342,857 ​ $ 1,279 ​ $ 3,981,336 ​ ​ ​ Credit quality indicators by class of loans as of December 31, 2023 were as follows in the vintage table below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Converted To Term Loans Total Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 318,569 ​ $ 136,668 ​ $ 35,901 ​ $ 11,983 ​ $ 18,390 ​ $ 3,426 ​ $ 298,931 ​ $ 1,408 ​ $ 825,276 Special Mention ​ ​ - ​ ​ 2,737 ​ ​ 707 ​ ​ 171 ​ ​ - ​ ​ - ​ ​ 4,392 ​ ​ - ​ ​ 8,007 Substandard ​ ​ - ​ ​ 2,099 ​ ​ 146 ​ ​ - ​ ​ 199 ​ ​ - ​ ​ 5,970 ​ ​ - ​ ​ 8,414 Total commercial ​ ​ 318,569 ​ ​ 141,504 ​ ​ 36,754 ​ ​ 12,154 ​ ​ 18,589 ​ ​ 3,426 ​ ​ 309,293 ​ ​ 1,408 ​ ​ 841,697 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Leases ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 219,163 ​ ​ 113,074 ​ $ 42,275 ​ ​ 14,663 ​ ​ 6,975 ​ ​ 1,255 ​ ​ - ​ ​ - ​ ​ 397,405 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ 407 ​ ​ 203 ​ ​ - ​ ​ 208 ​ ​ - ​ ​ - ​ ​ - ​ ​ 818 Total leases ​ ​ 219,163 ​ ​ 113,481 ​ ​ 42,478 ​ ​ 14,663 ​ ​ 7,183 ​ ​ 1,255 ​ ​ - ​ ​ - ​ ​ 398,223 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate – investor ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 159,654 ​ ​ 367,512 ​ ​ 218,084 ​ ​ 108,384 ​ ​ 54,322 ​ ​ 63,281 ​ ​ 8,122 ​ ​ - ​ ​ 979,359 Special Mention ​ ​ - ​ ​ - ​ ​ 11,267 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 11,267 Substandard ​ ​ - ​ ​ - ​ ​ 838 ​ ​ 5,327 ​ ​ 15,658 ​ ​ 9,648 ​ ​ 12,327 ​ ​ - ​ ​ 43,798 Total commercial real estate – investor ​ ​ 159,654 ​ ​ 367,512 ​ ​ 230,189 ​ ​ 113,711 ​ ​ 69,980 ​ ​ 72,929 ​ ​ 20,449 ​ ​ - ​ ​ 1,034,424 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate – owner occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 124,059 ​ ​ 134,383 ​ ​ 177,553 ​ ​ 103,109 ​ ​ 42,839 ​ ​ 91,062 ​ ​ 33,243 ​ ​ - ​ ​ 706,248 Special Mention ​ ​ 1,650 ​ ​ 17,415 ​ ​ 9,585 ​ ​ 3,128 ​ ​ 218 ​ ​ 3,681 ​ ​ - ​ ​ - ​ ​ 35,677 Substandard ​ ​ - ​ ​ 14,630 ​ ​ 18,817 ​ ​ 4,571 ​ ​ 14,809 ​ ​ 1,786 ​ ​ - ​ ​ - ​ ​ 54,613 Total commercial real estate – owner occupied ​ ​ 125,709 ​ ​ 166,428 ​ ​ 205,955 ​ ​ 110,808 ​ ​ 57,866 ​ ​ 96,529 ​ ​ 33,243 ​ ​ - ​ ​ 796,538 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 42,808 ​ ​ 66,513 ​ ​ 32,942 ​ ​ 100 ​ ​ 1,593 ​ ​ 1,083 ​ ​ 3,186 ​ ​ - ​ ​ 148,225 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ - ​ ​ 9,993 ​ ​ - ​ ​ 7,162 ​ ​ - ​ ​ - ​ ​ 17,155 Total construction ​ ​ 42,808 ​ ​ 66,513 ​ ​ 32,942 ​ ​ 10,093 ​ ​ 1,593 ​ ​ 8,245 ​ ​ 3,186 ​ ​ - ​ ​ 165,380 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential real estate – investor ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 5,062 ​ ​ 14,434 ​ ​ 9,027 ​ ​ 6,227 ​ ​ 6,508 ​ ​ 8,469 ​ ​ 1,471 ​ ​ - ​ ​ 51,198 Special Mention ​ ​ - ​ ​ - ​ ​ 66 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 66 Substandard ​ ​ - ​ ​ 390 ​ ​ - ​ ​ - ​ ​ 408 ​ ​ 533 ​ ​ - ​ ​ - ​ ​ 1,331 Total residential real estate – investor ​ ​ 5,062 ​ ​ 14,824 ​ ​ 9,093 ​ ​ 6,227 ​ ​ 6,916 ​ ​ 9,002 ​ ​ 1,471 ​ ​ - ​ ​ 52,595 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential real estate – owner occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 32,574 ​ ​ 41,528 ​ ​ 40,335 ​ ​ 25,322 ​ ​ 14,233 ​ ​ 68,277 ​ ​ 763 ​ ​ - ​ ​ 223,032 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ - ​ ​ 191 ​ ​ 685 ​ ​ 2,340 ​ ​ - ​ ​ - ​ ​ 3,216 Total residential real estate – owner occupied ​ ​ 32,574 ​ ​ 41,528 ​ ​ 40,335 ​ ​ 25,513 ​ ​ 14,918 ​ ​ 70,617 ​ ​ 763 ​ ​ - ​ ​ 226,248 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Multifamily ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 55,310 ​ ​ 79,060 ​ ​ 123,834 ​ ​ 72,539 ​ ​ 12,231 ​ ​ 40,825 ​ ​ 562 ​ ​ - ​ ​ 384,361 Special Mention ​ ​ - ​ ​ 168 ​ ​ 13,425 ​ ​ 322 ​ ​ 1,645 ​ ​ - ​ ​ - ​ ​ - ​ ​ 15,560 Substandard ​ ​ - ​ ​ 1,009 ​ ​ - ​ ​ - ​ ​ - ​ ​ 766 ​ ​ - ​ ​ - ​ ​ 1,775 Total multifamily ​ ​ 55,310 ​ ​ 80,237 ​ ​ 137,259 ​ ​ 72,861 ​ ​ 13,876 ​ ​ 41,591 ​ ​ 562 ​ ​ - ​ ​ 401,696 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ HELOC ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 2,735 ​ ​ 2,679 ​ ​ 490 ​ ​ 1,757 ​ ​ 1,756 ​ ​ 2,995 ​ ​ 89,161 ​ ​ - ​ ​ 101,573 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ 25 ​ ​ 1 ​ ​ 41 ​ ​ 24 ​ ​ 184 ​ ​ 1,389 ​ ​ - ​ ​ 1,664 Total HELOC ​ ​ 2,735 ​ ​ 2,704 ​ ​ 491 ​ ​ 1,798 ​ ​ 1,780 ​ ​ 3,179 ​ ​ 90,550 ​ ​ - ​ ​ 103,237 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 4,060 ​ ​ 2,278 ​ ​ 1,569 ​ ​ 153 ​ ​ 85 ​ ​ 73 ​ ​ 14,697 ​ ​ - ​ ​ 22,915 Special Mention ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Substandard ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Total other ​ ​ 4,060 ​ ​ 2,278 ​ ​ 1,569 ​ ​ 153 ​ ​ 85 ​ ​ 73 ​ ​ 14,697 ​ ​ - ​ ​ 22,915 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 963,994 ​ ​ 958,129 ​ ​ 682,010 ​ ​ 344,237 ​ ​ 158,932 ​ ​ 280,746 ​ ​ 450,136 ​ ​ 1,408 ​ ​ 3,839,592 Special Mention ​ ​ 1,650 ​ ​ 20,320 ​ ​ 35,050 ​ ​ 3,621 ​ ​ 1,863 ​ ​ 3,681 ​ ​ 4,392 ​ ​ - ​ ​ 70,577 Substandard ​ ​ - ​ ​ 18,560 ​ ​ 20,005 ​ ​ 20,123 ​ ​ 31,991 ​ ​ 22,419 ​ ​ 19,686 ​ ​ - ​ ​ 132,784 Total loans ​ $ 965,644 ​ $ 997,009 ​ $ 737,065 ​ $ 367,981 ​ $ 192,786 ​ $ 306,846 ​ $ 474,214 ​ $ 1,408 ​ $ 4,042,953
Schedule of gross charge-offs	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 2024 2023 2022 2021 2020 Prior Total Commercial ​ $ 31 ​ $ 7,205 ​ $ 756 ​ $ 670 ​ $ - ​ $ 24 ​ $ 8,686 Leases ​ ​ - ​ ​ - ​ ​ 96 ​ ​ 53 ​ ​ - ​ ​ - ​ ​ 149 Commercial real estate – investor ​ ​ - ​ ​ - ​ ​ 4,128 ​ ​ 452 ​ ​ 16 ​ ​ - ​ ​ 4,596 Commercial real estate – owner occupied ​ ​ - ​ ​ ​ ​ ​ - ​ ​ 5,135 ​ ​ - ​ ​ 19 ​ ​ 5,154 Construction ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Residential real estate – investor ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Residential real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 242 ​ ​ 242 Multifamily ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - HELOC ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Other ​ ​ 5 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 279 ​ ​ 284 Total ​ $ 36 ​ $ 7,205 ​ $ 4,980 ​ $ 6,310 ​ $ 16 ​ $ 564 ​ $ 19,111 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 2023 2022 2021 2020 2019 Prior Total Commercial ​ $ - ​ $ - ​ $ 466 ​ $ 364 ​ $ - ​ $ 55 ​ $ 885 Leases ​ ​ - ​ ​ 870 ​ ​ - ​ ​ - ​ ​ 12 ​ ​ - ​ ​ 882 Commercial real estate – investor ​ ​ 123 ​ ​ 8,352 ​ ​ 71 ​ ​ 3,270 ​ ​ - ​ ​ - ​ ​ 11,816 Commercial real estate – owner occupied ​ ​ - ​ ​ 22 ​ ​ 178 ​ ​ 6,947 ​ ​ 3,512 ​ ​ 32 ​ ​ 10,691 Construction ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Residential real estate – investor ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Residential real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Multifamily ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - HELOC ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Other ​ ​ - ​ ​ 3 ​ ​ 27 ​ ​ 6 ​ ​ - ​ ​ 332 ​ ​ 368 Total ​ $ 123 ​ $ 9,247 ​ $ 742 ​ $ 10,587 ​ $ 3,524 ​ $ 419 ​ $ 24,642
Schedule of class of financing receivable	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ Term Extension ​ Combination - Term Extension, Interest Rate, and Payment Delay ​ Combination - Term Extension and Interest Rate ​ Combination - Term Extension and Payment 1 ​ Total Modifications ​ Total Class of Financing Receivable Commercial ​ $ 3,385 ​ $ 3,794 ​ $ - ​ $ - ​ $ 7,179 ​ 0.9% Commercial real estate – investor ​ ​ 12,509 ​ ​ - ​ ​ - ​ ​ - ​ ​ 12,509 ​ 1.2% Commercial real estate – owner occupied ​ ​ 22,210 ​ ​ 415 ​ ​ 3,206 ​ ​ 209 ​ ​ 26,040 ​ 3.8% Residential real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ 0.0% Multifamily ​ ​ - ​ ​ 1,197 ​ ​ - ​ ​ - ​ ​ 1,197 ​ 0.3% HELOC ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ 0.0% Total ​ $ 38,104 ​ $ 5,406 ​ $ 3,206 ​ $ 209 ​ $ 46,925 ​ 1.2% 1 Payment modifications are either contractual delays in payment or a modification of the payment amount. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Term Extension ​ Combination - Term Extension, Interest Rate, and Payment Delay ​ Combination - Term Extension and Interest Rate ​ Combination - Term Extension and Payment 1 ​ Total Modifications ​ Total Class of Financing Receivable Commercial ​ $ 3,000 ​ $ - ​ $ 979 ​ $ - ​ $ 3,979 ​ 0.5% Commercial real estate – investor ​ ​ 13,521 ​ ​ - ​ ​ - ​ ​ 7,646 ​ ​ 21,167 ​ 2.0% Commercial real estate – owner occupied ​ ​ 16,082 ​ ​ - ​ ​ - ​ ​ - ​ ​ 16,082 ​ 2.0% Residential real estate – owner occupied ​ ​ 119 ​ ​ - ​ ​ - ​ ​ - ​ ​ 119 ​ 0.1% Multifamily ​ ​ 233 ​ ​ - ​ ​ - ​ ​ - ​ ​ 233 ​ 0.1% HELOC ​ ​ 166 ​ ​ - ​ ​ - ​ ​ - ​ ​ 166 ​ 0.2% Total ​ $ 33,121 ​ $ - ​ $ 979 ​ $ 7,646 ​ $ 41,746 ​ 1.0% 1 Payment modifications are either contractual delays in payment or a modification of the payment amount . ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ 30-59 days past due ​ 60-89 Days Past Due ​ 90 Days or Greater Past Due ​ Total Past Due ​ Current ​ Total Modifications Commercial ​ $ - ​ $ - ​ $ - ​ $ - ​ $ 7,179 ​ $ 7,179 Commercial real estate – investor ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 12,509 ​ ​ 12,509 Commercial real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 26,040 ​ ​ 26,040 Residential real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Multifamily ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 1,197 ​ ​ 1,197 HELOC ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ - Total ​ $ - ​ $ - ​ $ - ​ $ - ​ $ 46,925 ​ $ 46,925 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ 30-59 days past due ​ 60-89 Days Past Due ​ 90 Days or Greater Past Due ​ Total Past Due ​ Current ​ Total Modifications Commercial ​ $ - ​ $ - ​ $ 979 ​ $ 979 ​ $ 3,000 ​ $ 3,979 Commercial real estate – investor ​ ​ 838 ​ ​ - ​ ​ - ​ ​ 838 ​ ​ 20,329 ​ ​ 21,167 Commercial real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 16,082 ​ ​ 16,082 Residential real estate – owner occupied ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 119 ​ ​ 119 Multifamily ​ ​ - ​ ​ - ​ ​ 233 ​ ​ 233 ​ ​ - ​ ​ 233 HELOC ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ ​ 166 ​ ​ 166 Total ​ $ 838 ​ $ - ​ $ 1,212 ​ $ 2,050 ​ $ 39,696 ​ $ 41,746 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ Weighted-Average Term Extension (In Months) ​ Weighted-Average Interest Rate Change ​ Weighted-Average Delay of Payment (In Months) Commercial ​ ​ 6.49 ​ ​ 0.50 % ​ ​ 4.00 Commercial real estate – investor ​ ​ 6.00 ​ ​ - ​ ​ ​ - Commercial real estate – owner occupied ​ ​ 8.59 ​ ​ 0.15 ​ ​ ​ - Residential real estate – owner occupied ​ ​ - ​ ​ - ​ ​ ​ - Multifamily ​ ​ 60.00 ​ ​ 2.75 ​ ​ ​ - HELOC ​ ​ - ​ ​ - ​ ​ ​ - Total ​ ​ 8.89 ​ ​ 0.69 % ​ ​ 4.00 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Weighted-Average Term Extension (In Months) ​ Weighted-Average Interest Rate Change ​ Weighted-Average Delay of Payment (In Months) Commercial ​ ​ 8.31 ​ ​ 5.00 % ​ ​ - Commercial real estate – investor ​ ​ 9.96 ​ ​ - ​ ​ ​ 7.00 Commercial real estate – owner occupied ​ ​ 11.65 ​ ​ - ​ ​ ​ - Residential real estate – owner occupied ​ ​ 39.00 ​ ​ - ​ ​ ​ - Multifamily ​ ​ 21.00 ​ ​ - ​ ​ ​ - HELOC ​ ​ 24.00 ​ ​ - ​ ​ ​ - Total ​ ​ 10.65 ​ ​ 5.00 % ​ ​ 7.00
Schedule of loans to principal officers, directors, and their affiliates, made in the ordinary course of business	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Beginning balance ​ $ - ​ $ 8,483 ​ New loans, including acquired related party loans ​ - ​ 30 ​ Repayments and other reductions ​ - ​ (30) ​ Change in related party status ​ - ​ (8,483) ​ Ending balance ​ $ - ​ $ - ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Other Real Estate Owned (Tables

Other Real Estate Owned (Tables)	12 Months Ended
	Dec. 31, 2024
Other Real Estate Owned
Schedule of activity in the other real estate owned (OREO) portfolio, net of valuation reserve	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Twelve Months Ended ​ December 31, Other real estate owned 2024 2023 ​ 2022 Balance at beginning of period ​ $ 5,123 ​ $ 1,561 ​ $ 2,356 Property additions, net of participation sold ​ ​ 21,083 ​ ​ 5,580 ​ ​ 87 Less: ​ ​ ​ ​ ​ ​ ​ ​ ​ Proceeds from property disposals, net of participation sold and gains/losses ​ ​ 2,845 ​ ​ 1,749 ​ ​ 778 Period valuation write-down ​ ​ 1,744 ​ ​ 269 ​ ​ 104 Balance at end of period ​ $ 21,617 ​ $ 5,123 ​ $ 1,561
Schedule of activity in valuation allowance	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Twelve Months Ended ​ December 31, ​ 2024 2023 2022 Balance at beginning of period ​ $ 118 ​ $ 856 ​ $ 1,179 Provision for unrealized losses ​ ​ 1,744 ​ ​ 269 ​ ​ 104 Reductions taken on sales ​ ​ - ​ ​ (1,007) ​ ​ (427) Balance at end of period ​ $ 1,862 ​ $ 118 ​ $ 856 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
Schedule of expenses related to foreclosed assets, net of lease revenue	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Twelve Months Ended ​ December 31, ​ 2024 2023 ​ 2022 Gain on sales, net ​ $ (390) ​ $ (256) ​ $ (163) Provision for unrealized losses ​ ​ 1,744 ​ ​ 269 ​ ​ 104 Operating expenses ​ ​ 1,801 ​ ​ 434 ​ ​ 193 Less: ​ ​ ​ ​ ​ ​ ​ ​ ​ Lease revenue ​ ​ 935 ​ ​ 48 ​ ​ 4 Net OREO expense ​ $ 2,220 ​ $ 399 ​ $ 130 ​

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2024
Premises and Equipment
Schedule of components of premises and equipment	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ ​ ​ ​ ​ Accumulated ​ ​ ​ ​ Accumulated ​ ​ ​ ​ ​ ​ ​ ​ Depreciation/ ​ Net Book ​ ​ ​ ​ Depreciation/ ​ Net Book ​ ​ ​ ​ Cost ​ Amortization ​ Value ​ Cost ​ Amortization ​ Value ​ ​ Land ​ $ 30,981 ​ $ - ​ $ 30,981 ​ $ 29,741 ​ $ - ​ $ 29,741 ​ ​ Buildings ​ 61,428 ​ 27,413 ​ 34,015 ​ 58,311 ​ 25,911 ​ 32,400 ​ ​ Leasehold improvements ​ 10,341 ​ 2,112 ​ 8,229 ​ 7,785 ​ 1,574 ​ 6,211 ​ ​ Furniture and equipment ​ 63,884 ​ 49,798 ​ 14,086 ​ 57,447 ​ ​ 46,489 ​ 10,958 ​ ​ Total Premises and Equipment ​ $ 166,634 ​ $ 79,323 ​ $ 87,311 ​ $ 153,284 ​ $ 73,974 ​ $ 79,310 ​ ​
Schedule of Right-of-use asset and lease obligations by type of property	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ Right-of-Use Asset ​ Lease Liability ​ Weight Average Lease Term in Years ​ Weight Average Discount Rate Operating Leases ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Land and building leases ​ $ 7,359 ​ $ 12,465 ​ ​ 13.7 ​ 4.72 % Total operating leases ​ $ 7,359 ​ $ 12,465 ​ ​ 13.7 ​ 4.72 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Right-of-Use Asset ​ Lease Liability ​ Weight Average Lease Term in Years ​ Weight Average Discount Rate Operating Leases ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Land and building leases ​ $ 7,093 ​ $ 11,578 ​ ​ 12.5 ​ 4.65 % Total operating leases ​ $ 7,093 ​ $ 11,578 ​ ​ 12.5 ​ 4.65 %
Schedule of operating lease costs	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ 2022 Operating lease cost ​ $ 1,337 ​ $ 988 ​ $ 716 Short-term lease cost ​ ​ 54 ​ ​ 64 ​ ​ 60 Total operating lease cost ​ $ 1,391 ​ $ 1,052 ​ $ 776
Schedule of maturity analysis of operating lease liabilities and reconciliation of the undiscounted cash flows	A maturity analysis of operating lease liabilities and reconciliation of the undiscounted cash flows to the total operating lease liability as of December 31, 2024, is listed below. ​ ​ ​ ​ ​ Lease payments ​ ​ ​ Due in one year or less ​ $ 2,095 Due in one year through two years ​ ​ 1,903 Due in two years through three years ​ ​ 1,847 Due in three years through four years ​ ​ 1,756 Due in four years through five years ​ ​ 1,692 Thereafter ​ ​ 5,824 Total lease payments ​ ​ 15,117 Discount on cash flows ​ ​ (2,652) Total lease liabilities ​ $ 12,465 ​

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2024
Deposits
Schedule of major classifications of deposits	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Noninterest bearing demand ​ $ 1,704,920 ​ $ 1,834,891 ​ Savings ​ ​ 932,201 ​ ​ 971,334 ​ NOW accounts ​ ​ 621,434 ​ ​ 565,375 ​ Money market accounts ​ ​ 761,499 ​ ​ 671,240 ​ Certificates of deposit of less than $100,000 ​ ​ 352,526 ​ ​ 266,035 ​ Certificates of deposit of $100,000 through $250,000 ​ ​ 270,837 ​ ​ 180,289 ​ Certificates of deposit of more than $250,000 ​ ​ 125,314 ​ ​ 81,582 ​ Total deposits ​ $ 4,768,731 ​ $ 4,570,746 ​ ​ ​ ​ ​ ​ ​ ​ ​
Summary of scheduled maturities of time deposits	​ ​ ​ ​ ​ ​ 2025 $ 700,746 ​ 2026 ​ 27,775 ​ 2027 ​ 7,645 ​ 2028 ​ 8,130 ​ 2029 ​ 4,381 ​ Total time deposits ​ $ 748,677 ​ ​

Borrowings (Tables)

Borrowings (Tables)	12 Months Ended
	Dec. 31, 2024
Borrowings
Summary of borrowings and junior subordinated debentures	The following table is a summary of borrowings as of December 31, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Securities sold under repurchase agreements ​ $ 36,657 ​ $ 26,470 ​ Other short-term borrowings ​ ​ 20,000 ​ ​ 405,000 ​ Junior subordinated debentures 1 ​ ​ 25,773 ​ ​ 25,773 ​ Subordinated debentures ​ ​ 59,467 ​ ​ 59,382 ​ Total borrowings ​ $ 141,897 ​ $ 516,625 ​ ​ ​ ​ ​ ​ ​ ​ ​ 1 See Note 10: Junior Subordinated Debentures, below.
Summary of scheduled maturities and weighted average rates of borrowings	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ Average ​ ​ ​ ​ Average ​ Balance Rate Balance Rate 2024 ​ $ - - % $ 431,470 ​ 4.98 % 2025 ​ ​ 56,657 ​ 2.47 ​ ​ - - ​ 2026 ​ - - ​ - - ​ 2027 ​ - - ​ - ​ - ​ 2028 ​ - - ​ - - ​ 2029 ​ - - ​ - ​ - ​ Thereafter ​ 85,240 3.89 ​ 85,155 4.10 ​ Total borrowings ​ $ 141,897 3.32 % $ 516,625 4.84 % ​

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2024
Income Taxes
Schedule of components of income tax expense (benefit)	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Current federal ​ $ 22,011 ​ $ 20,724 ​ $ 13,241 Current state ​ ​ 7,048 ​ ​ 10,098 ​ ​ 6,209 Deferred federal ​ ​ (1,419) ​ ​ 1,964 ​ ​ 3,338 Deferred state ​ ​ 52 ​ ​ (107) ​ ​ 1,356 Total income tax expense ​ $ 27,692 ​ $ 32,679 ​ $ 24,144 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
Schedule of components of deferred tax assets and liabilities	​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Accrued bonus ​ $ 2,601 ​ $ 2,500 Allowance for credit losses ​ ​ 12,241 ​ ​ 13,077 Deferred compensation ​ ​ 2,100 ​ ​ 1,622 Stock based compensation ​ ​ 1,920 ​ ​ 1,768 Business combination adjustments ​ ​ - ​ ​ 270 Lease liability ​ ​ 3,315 ​ ​ 3,201 Other assets ​ ​ 2,357 ​ ​ 1,602 Total deferred tax assets ​ ​ 24,534 ​ ​ 24,040 ​ ​ ​ ​ ​ ​ ​ Accumulated depreciation on premises and equipment ​ ​ (5,844) ​ ​ (5,454) Goodwill amortization/impairment ​ ​ (604) ​ ​ (465) Mortgage servicing rights ​ ​ (2,728) ​ ​ (2,842) Amortization of core deposit intangible ​ ​ (2,248) ​ ​ (2,987) Right of use asset ​ ​ (1,972) ​ ​ (1,969) Acquired securities ​ ​ (1,997) ​ ​ (2,376) Other liabilities ​ ​ (1,090) ​ ​ (1,263) Total deferred tax liabilities ​ ​ (16,483) ​ ​ (17,356) Net deferred tax asset before adjustments related to other comprehensive income ​ ​ 8,051 ​ ​ 6,684 Tax effect of adjustments related to other comprehensive income ​ ​ 18,568 ​ ​ 24,393 Net deferred tax asset ​ $ 26,619 ​ $ 31,077 ​ ​ ​ ​ ​ ​ ​
Schedule of difference between effective tax rates from federal statutory rates	Effective tax rates differ from federal statutory rates applied to financial statement income for the years ended December 31, due to the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Tax at statutory federal income tax rate ​ $ 23,721 ​ $ 26,126 ​ $ 19,225 Nontaxable interest income, net of disallowed interest deduction ​ ​ (820) ​ ​ (947) ​ ​ (1,097) BOLI income ​ ​ (950) ​ ​ (445) ​ ​ (151) State income taxes, net of federal benefit ​ ​ 5,775 ​ ​ 7,911 ​ ​ 6,091 Stock based compensation ​ ​ (139) ​ ​ (132) ​ ​ (43) Other, net ​ ​ 105 ​ ​ 166 ​ ​ 119 Total tax at effective tax rate ​ $ 27,692 ​ $ 32,679 ​ $ 24,144 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Equity Compensation Plans (Tabl

Equity Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2024
Equity Compensation Plans
Summary of changes in nonvested shares of restricted share rights	​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ ​ ​ ​ Weighted ​ ​ Restricted ​ Average ​ ​ Stock Shares ​ Grant Date ​ and Units Fair Value Unvested at January 1 ​ 709,237 ​ $ 14.26 Granted ​ 339,235 ​ ​ 13.44 Vested ​ (248,386) ​ ​ 11.54 Forfeited ​ (21,808) ​ ​ 15.10 Unvested at December 31 ​ 778,278 ​ $ 14.75 ​ ​ ​ ​ ​ ​

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2024
Earnings Per Share
Schedule of earnings per share	The earnings per share, both basic and diluted, are included below as of December 31, (in thousands except for per share data): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Basic earnings per share: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted-average common shares outstanding ​ ​ ​ 44,828,290 ​ ​ 44,663,722 ​ ​ 44,526,655 Net income ​ ​ $ 85,264 ​ $ 91,729 ​ $ 67,405 Basic earnings per share ​ ​ $ 1.90 ​ $ 2.05 ​ $ 1.51 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Diluted earnings per share: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted-average common shares outstanding ​ ​ ​ 44,828,290 ​ ​ 44,663,722 ​ ​ 44,526,655 Dilutive effect of unvested restricted awards 1 ​ ​ ​ 811,061 ​ ​ 731,288 ​ ​ 686,433 Diluted average common shares outstanding ​ ​ ​ 45,639,351 ​ ​ 45,395,010 ​ ​ 45,213,088 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net Income ​ ​ $ 85,264 ​ $ 91,729 ​ $ 67,405 Diluted earnings per share ​ ​ $ 1.87 ​ $ 2.02 ​ $ 1.49 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1 Includes the common stock equivalents for restricted share rights that are dilutive. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Commitments (Tables)

Commitments (Tables)	12 Months Ended
	Dec. 31, 2024
Commitments
Schedule of contractual commitments due to letters of credit	The following table is a summary of financial instrument commitments as of December 31, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ December 31, 2023 ​ ​ Fixed Variable Total Fixed Variable Total Letters of credit: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Borrower: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial standby ​ $ 188 ​ $ 16,322 ​ $ 16,510 ​ $ 173 ​ $ 16,621 ​ $ 16,794 ​ Performance standby ​ ​ 552 ​ ​ 10,207 ​ ​ 10,759 ​ ​ 562 ​ ​ 13,689 ​ ​ 14,251 ​ ​ ​ ​ 740 ​ ​ 26,529 ​ ​ 27,269 ​ ​ 735 ​ ​ 30,310 ​ ​ 31,045 ​ Non-borrower: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performance standby ​ ​ - ​ ​ 67 ​ ​ 67 ​ ​ - ​ ​ 67 ​ ​ 67 ​ Total letters of credit ​ $ 740 ​ $ 26,596 ​ $ 27,336 ​ $ 735 ​ $ 30,377 ​ $ 31,112 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unused loan commitments: ​ $ 163,282 ​ $ 616,533 ​ $ 779,815 ​ $ 140,305 ​ $ 694,960 ​ $ 835,265 ​
Schedule of estimated aggregate minimum annual rent commitments	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2030 ​ 2025 ​ 2026 ​ 2027 ​ 2028 ​ 2029 ​ and thereafter Rental commitment $ 2,149 ​ $ 1,945 ​ $ 1,877 ​ $ 1,758 ​ $ 1,692 ​ $ 5,824

Regulatory & Capital Matters (T

Regulatory & Capital Matters (Tables)	12 Months Ended
	Dec. 31, 2024
Regulatory & Capital Matters
Schedule of capital levels and industry defined regulatory minimum required levels	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Minimum Capital ​ Well Capitalized ​ ​ ​ ​ ​ ​ ​ ​ ​ Adequacy with Capital ​ Under Prompt Corrective ​ ​ ​ Actual ​ Conservation Buffer, if applicable 1 ​ Action Provisions 2 ​ ​ Amount Ratio Amount Ratio Amount Ratio ​ 2024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Common equity tier 1 capital to risk weighted assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ $ 607,294 ​ 12.82 % ​ $ 331,596 ​ 7.00 % ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 610,285 ​ 12.89 ​ ​ ​ 331,419 ​ 7.00 ​ ​ $ 307,747 ​ 6.50 % Total capital to risk weighted assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ ​ 736,492 ​ 15.54 ​ ​ ​ 497,630 ​ 10.50 ​ ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 654,484 ​ 13.82 ​ ​ ​ 497,256 ​ 10.50 ​ ​ ​ 473,577 ​ 10.00 ​ Tier 1 capital to risk weighted assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ ​ 632,294 ​ 13.34 ​ ​ ​ 402,886 ​ 8.50 ​ ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 610,285 ​ 12.89 ​ ​ ​ 402,438 ​ 8.50 ​ ​ ​ 378,765 ​ 8.00 ​ Tier 1 capital to average assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ ​ 632,294 ​ 11.30 ​ ​ ​ 223,821 ​ 4.00 ​ ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 610,285 ​ 10.90 ​ ​ ​ 223,958 ​ 4.00 ​ ​ ​ 279,947 ​ 5.00 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Common equity tier 1 capital to risk weighted assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ $ 547,721 ​ 11.37 % ​ $ 337,207 ​ 7.00 % ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 592,413 ​ 12.32 ​ ​ ​ 336,598 ​ 7.00 ​ ​ $ 312,556 ​ 6.50 % Total capital to risk weighted assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ ​ 677,076 ​ 14.06 ​ ​ ​ 505,640 ​ 10.50 ​ ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 636,768 ​ 13.24 ​ ​ ​ 504,990 ​ 10.50 ​ ​ ​ 480,943 ​ 10.00 ​ Tier 1 capital to risk weighted assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ ​ 572,721 ​ 11.89 ​ ​ ​ 409,430 ​ 8.50 ​ ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 592,413 ​ 12.32 ​ ​ ​ 408,727 ​ 8.50 ​ ​ ​ 384,684 ​ 8.00 ​ Tier 1 capital to average assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consolidated ​ ​ 572,721 ​ 10.06 ​ ​ ​ 227,722 ​ 4.00 ​ ​ ​ N/A ​ N/A ​ Old Second Bank ​ ​ 592,413 ​ 10.41 ​ ​ ​ 227,632 ​ 4.00 ​ ​ ​ 284,540 ​ 5.00 ​ ​ 1 Amounts are shown inclusive of a capital conservation buffer of 2.50%. 2 The prompt corrective action provisions are only applicable at the Bank level. The Bank exceeded the general minimum regulatory requirements to be considered “well capitalized.” ​

Mortgage Banking Derivatives (T

Mortgage Banking Derivatives (Tables)	12 Months Ended
	Dec. 31, 2024
Not Designated as Hedging Instrument | Mortgage Banking Derivatives.
Mortgage Banking Derivatives
Schedule of the effect of fair value and cash flow hedge accounting	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Forward contracts: ​ ​ ​ ​ ​ ​ ​ Notional amount ​ $ 5,500 ​ $ 6,000 ​ Fair value ​ 10 ​ (46) ​ ​ ​ ​ ​ ​ ​ ​ ​ Rate lock commitments: ​ ​ ​ ​ ​ ​ ​ Notional amount ​ $ 3,167 ​ $ 1,312 ​ Fair value ​ 45 ​ 36 ​

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2024
Fair Value Measurements
Schedule of balance of assets and liabilities which are measured at fair value on a recurring basis	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ Level 1 Level 2 Level 3 Total Assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury ​ $ 194,143 ​ $ - ​ $ - ​ $ 194,143 U.S. government agencies ​ ​ - ​ ​ 37,814 ​ ​ - ​ ​ 37,814 U.S. government agencies mortgage-backed ​ ​ - ​ ​ 100,277 ​ ​ - ​ ​ 100,277 States and political subdivisions ​ ​ - ​ ​ 203,560 ​ ​ 11,896 ​ ​ 215,456 Collateralized mortgage obligations ​ ​ - ​ ​ 368,616 ​ ​ - ​ ​ 368,616 Asset-backed securities ​ ​ - ​ ​ 59,049 ​ ​ 3,254 ​ ​ 62,303 Collateralized loan obligations ​ ​ - ​ ​ 183,092 ​ ​ - ​ ​ 183,092 Loans held-for-sale ​ ​ - ​ ​ 1,556 ​ ​ - ​ ​ 1,556 Mortgage servicing rights ​ ​ - ​ ​ - ​ ​ 10,374 ​ ​ 10,374 Interest rate derivatives ​ ​ - ​ ​ 5,526 ​ ​ - ​ ​ 5,526 Mortgage banking derivatives ​ ​ - ​ ​ 55 ​ ​ - ​ ​ 55 Total ​ $ 194,143 ​ $ 959,545 ​ $ 25,524 ​ $ 1,179,212 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements, including risk participation agreements ​ $ - ​ $ 3,192 ​ $ - ​ $ 3,192 Total ​ $ - ​ $ 3,192 ​ $ - ​ $ 3,192 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Level 1 Level 2 Level 3 Total Assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury ​ $ 169,574 ​ $ - ​ $ - ​ $ 169,574 U.S. government agencies ​ ​ - ​ ​ 56,959 ​ ​ - ​ ​ 56,959 U.S. government agencies mortgage-backed ​ ​ - ​ ​ 106,370 ​ ​ - ​ ​ 106,370 States and political subdivisions ​ ​ - ​ ​ 214,006 ​ ​ 13,059 ​ ​ 227,065 Collateralized mortgage obligations ​ ​ - ​ ​ 392,544 ​ ​ - ​ ​ 392,544 Asset-backed securities ​ ​ - ​ ​ 66,166 ​ ​ 2,270 ​ ​ 68,436 Collateralized loan obligations ​ ​ - ​ ​ 171,881 ​ ​ - ​ ​ 171,881 Loans held-for-sale ​ ​ - ​ ​ 1,322 ​ ​ - ​ ​ 1,322 Mortgage servicing rights ​ ​ - ​ ​ - ​ ​ 10,344 ​ ​ 10,344 Interest rate derivatives ​ ​ - ​ ​ 5,391 ​ ​ - ​ ​ 5,391 Total ​ $ 169,574 ​ $ 1,014,639 ​ $ 25,673 ​ $ 1,209,886 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements, including risk participation agreements ​ $ - ​ $ 8,324 ​ $ - ​ $ 8,324 Mortgage banking derivatives ​ ​ - ​ ​ 10 ​ ​ - ​ ​ 10 Total ​ $ - ​ $ 8,334 ​ $ - ​ $ 8,334
Schedule of changes in Level 3 assets and liabilities measured at fair value on a recurring basis	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2024 ​ ​ Securities available-for-sale ​ ​ ​ ​ ​ ​ ​ States and ​ Mortgage ​ ​ Asset-backed ​ Political ​ Servicing ​ Securities ​ Subdivisions Rights Beginning balance January 1, 2024 ​ $ 2,270 ​ $ 13,059 ​ $ 10,344 Transfers out of Level 3 ​ ​ - ​ ​ - ​ ​ - Total gains or losses ​ ​ ​ ​ ​ ​ ​ ​ ​ Included in earnings ​ ​ - ​ ​ (125) ​ ​ (160) Included in other comprehensive income ​ ​ (69) ​ ​ (444) ​ ​ - Purchases, issuances, sales, and settlements ​ ​ ​ ​ ​ ​ ​ ​ ​ Purchases ​ ​ 1,209 ​ ​ - ​ ​ - Issuances ​ ​ - ​ ​ - ​ ​ 753 Settlements ​ ​ (156) ​ ​ (594) ​ ​ (563) Ending balance December 31, 2024 ​ $ 3,254 ​ $ 11,896 ​ $ 10,374 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2023 ​ ​ ​ ​ Securities available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ Collateralized ​ States and ​ Mortgage ​ ​ ​ Asset-backed ​ Mortgage ​ Political ​ Servicing ​ ​ Securities ​ Obligations ​ Subdivisions Rights Beginning balance January 1, 2023 ​ $ 16,740 ​ $ 6,770 ​ $ 12,501 ​ $ 11,189 ​ Transfers into Level 3 ​ ​ - ​ ​ - ​ ​ - ​ ​ - ​ Transfers out of Level 3 ​ ​ (14,885) ​ ​ (6,764) ​ ​ - ​ ​ - ​ Total gains or losses ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Included in earnings ​ ​ (11) ​ ​ - ​ ​ (135) ​ ​ (924) ​ Included in other comprehensive income ​ ​ 239 ​ ​ (6) ​ ​ 998 ​ ​ - ​ Purchases, issuances, sales, and settlements ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Purchases ​ ​ 782 ​ ​ - ​ ​ - ​ ​ - ​ Issuances ​ ​ - ​ ​ - ​ ​ - ​ ​ 580 ​ Settlements ​ ​ (595) ​ ​ - ​ ​ (305) ​ ​ (501) ​ Ending balance December 31, 2023 ​ $ 2,270 ​ $ - ​ $ 13,059 ​ $ 10,344 ​
Schedule of quantitative information about level 3 fair value measurements	​ The following table and commentary presents quantitative and qualitative information about Level 3 fair value measurements as of December 31, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted Measured at fair value ​ ​ ​ ​ ​ ​ Significant Unobservable ​ ​ ​ Average on a recurring basis: Fair Value Valuation Methodology Inputs Range of Input of Inputs ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ States and political subdivisions ​ $ 11,896 ​ Discounted Cash Flow ​ Discount Rate ​ 5.3 –5.4% ​ 5.4 % ​ ​ ​ ​ ​ ​ ​ Liquidity Premium ​ 0.5 – 0.5% ​ 0.5 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Asset-backed securities ​ $ 3,254 ​ Discounted Cash Flow ​ Discount Rate ​ 4.9 – 4.9% ​ 4.9 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Mortgage servicing rights ​ $ 10,374 ​ Discounted Cash Flow ​ Discount Rate ​ 9.0 – 11.0% ​ 9.0 % ​ ​ ​ ​ ​ ​ ​ Prepayment Speed ​ 0.0 – 31.5% ​ 6.9 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The following table and commentary presents quantitative and qualitative information about Level 3 fair value measurements as of December 31, 2023: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted Measured at fair value ​ ​ ​ ​ ​ ​ Significant Unobservable ​ ​ ​ Average on a recurring basis: Fair Value Valuation Methodology Inputs Range of Input of Inputs ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ States and political subdivisions ​ $ 13,059 ​ Discounted Cash Flow ​ Discount Rate ​ 3.2 – 5.4% ​ 4.7 % ​ ​ ​ ​ ​ ​ ​ Liquidity Premium ​ 0.5 – 0.5% ​ 0.5 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Asset-backed securities ​ $ 2,270 ​ Discounted Cash Flow ​ Discount Rate ​ 5.6 – 5.6% ​ 5.6 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Mortgage servicing rights ​ $ 10,344 ​ Discounted Cash Flow ​ Discount Rate ​ 9.0 – 11.0% ​ 9.0 % ​ ​ ​ ​ ​ ​ ​ Prepayment Speed ​ 5.1 – 33.0% ​ 6.6 %
Schedule of assets measured at fair value on a nonrecurring basis	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ Level 1 Level 2 Level 3 Total Individually evaluated loans 1 ​ $ - ​ $ - ​ $ 19,058 ​ $ 19,058 Other real estate owned, net 2 ​ ​ - ​ ​ - ​ ​ 21,617 ​ ​ 21,617 Total ​ $ - ​ $ - ​ $ 40,675 ​ $ 40,675 ​ 1 Represents carrying value and related write-downs of loans for which adjustments are substantially based on the appraised value of collateral for collateral-dependent loans and to a lesser extent the discounted cash flow, had a carrying amount of $26.2 million and a valuation allowance of $7.2 million, resulting in a decrease of specific allocations within the provision for credit losses of $3.9 million for the year ending December 31, 2024. ​ 2 OREO is measured at the lower of carrying or fair value less costs to sell, and had a net carrying amount of $21.6 million, which is made up of the outstanding balance of $23.5 million, net of a valuation allowance of $1.9 million, at December 31, 2024. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Level 1 Level 2 Level 3 Total Individually evaluated loans 1 ​ $ - ​ $ - ​ $ 66,180 ​ $ 66,180 Other real estate owned, net 2 ​ ​ - ​ ​ - ​ ​ 5,123 ​ ​ 5,123 Total ​ $ - ​ $ - ​ $ 71,303 ​ $ 71,303 ​ 1 Represents carrying value and related write-downs of loans for which adjustments are substantially based on the appraised value of collateral for collateral-dependent loans and to a lesser extent the discounted cash flow, had a carrying amount of $77.3 million and a valuation allowance of $11.1 million, resulting in an increase of specific allocations within the provision for credit losses of $6.5 million for the year ending December 31, 2023. ​ 2 OREO is measured at the lower of carrying or fair value less costs to sell, and had a net carrying amount of $5.1 million, which is made up of the outstanding balance of $5.2 million, net of a valuation allowance of $118,000 at December 31, 2023.

Fair Values of Financial Inst_2

Fair Values of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2024
Fair Values of Financial Instruments
Schedule of carrying amount and estimated fair values of financial instruments	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ ​ Carrying ​ Fair ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amount Value Level 1 Level 2 Level 3 Financial assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and due from banks ​ $ 52,175 ​ $ 52,175 ​ $ 52,175 ​ $ - ​ $ - Interest earning deposits with financial institutions ​ ​ 47,154 ​ ​ 47,154 ​ ​ 47,154 ​ ​ - ​ ​ - Securities available-for-sale ​ ​ 1,161,701 ​ ​ 1,161,701 ​ ​ 194,143 ​ ​ 952,408 ​ ​ 15,150 FHLBC and FRBC stock ​ ​ 19,441 ​ ​ 19,441 ​ ​ - ​ ​ 19,441 ​ ​ - Loans held-for-sale ​ ​ 1,556 ​ ​ 1,556 ​ ​ - ​ ​ 1,556 ​ ​ - Net loans ​ ​ 3,937,717 ​ ​ 3,818,303 ​ ​ - ​ ​ - ​ ​ 3,818,303 Interest rate swap and rate cap agreements ​ ​ 5,498 ​ ​ 5,498 ​ ​ - ​ ​ 5,498 ​ ​ - Interest rate lock commitments and forward contracts ​ ​ 55 ​ ​ 55 ​ ​ - ​ ​ 55 ​ ​ - Interest receivable on securities and loans ​ ​ 24,598 ​ ​ 24,598 ​ ​ - ​ ​ 24,598 ​ ​ - ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Noninterest bearing deposits ​ $ 1,704,920 ​ $ 1,704,920 ​ $ 1,704,920 ​ $ - ​ $ - Interest bearing deposits ​ ​ 3,063,811 ​ ​ 3,056,180 ​ ​ - ​ ​ 3,056,180 ​ ​ - Securities sold under repurchase agreements ​ ​ 36,657 ​ ​ 36,657 ​ ​ - ​ ​ 36,657 ​ ​ - Other short-term borrowings ​ ​ 20,000 ​ ​ 20,000 ​ ​ - ​ ​ 20,000 ​ ​ - Junior subordinated debentures ​ ​ 25,773 ​ ​ 21,444 ​ ​ - ​ ​ 21,444 ​ ​ - Subordinated debentures ​ ​ 59,467 ​ ​ 54,533 ​ ​ - ​ ​ 54,533 ​ ​ - Interest rate swap and rate cap agreements ​ ​ 3,187 ​ ​ 3,187 ​ ​ - ​ ​ 3,187 ​ ​ - Interest payable on deposits and borrowings ​ ​ 3,871 ​ ​ 3,871 ​ ​ - ​ ​ 3,871 ​ ​ - ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ ​ Carrying ​ Fair ​ ​ ​ ​ ​ ​ ​ Amount Value Level 1 Level 2 Level 3 Financial assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and due from banks ​ $ 55,534 ​ $ 55,534 ​ $ 55,534 ​ $ - ​ $ - Interest earning deposits with financial institutions ​ ​ 44,611 ​ ​ 44,611 ​ ​ 44,611 ​ ​ - ​ ​ - Securities available-for-sale ​ ​ 1,192,829 ​ ​ 1,192,829 ​ ​ 169,574 ​ ​ 1,007,926 ​ ​ 15,329 FHLBC and FRBC stock ​ ​ 33,355 ​ ​ 33,355 ​ ​ - ​ ​ 33,355 ​ ​ - Loans held-for-sale ​ ​ 1,322 ​ ​ 1,322 ​ ​ - ​ ​ 1,322 ​ ​ - Net loans ​ ​ 3,998,689 ​ ​ 3,876,381 ​ ​ - ​ ​ - ​ ​ 3,876,381 Interest rate swap and rate cap agreements ​ ​ 5,302 ​ ​ 5,302 ​ ​ - ​ ​ 5,302 ​ ​ - Interest receivable on securities and loans ​ ​ 27,159 ​ ​ 27,159 ​ ​ - ​ ​ 27,159 ​ ​ - ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Noninterest bearing deposits ​ $ 1,834,891 ​ $ 1,834,891 ​ $ 1,834,891 ​ $ - ​ $ - Interest bearing deposits ​ ​ 2,735,855 ​ ​ 2,726,223 ​ ​ - ​ ​ 2,726,223 ​ ​ - Securities sold under repurchase agreements ​ ​ 26,470 ​ ​ 26,470 ​ ​ - ​ ​ 26,470 ​ ​ - Other short-term borrowings ​ ​ 405,000 ​ ​ 405,000 ​ ​ - ​ ​ 405,000 ​ ​ - Junior subordinated debentures ​ ​ 25,773 ​ ​ 20,361 ​ ​ - ​ ​ 20,361 ​ ​ - Subordinated debentures ​ ​ 59,382 ​ ​ 47,982 ​ ​ - ​ ​ 47,982 ​ ​ - Interest rate swap and rate cap agreements ​ ​ 8,324 ​ ​ 8,324 ​ ​ - ​ ​ 8,324 ​ ​ - Interest rate lock commitments and forward contracts ​ ​ 10 ​ ​ 10 ​ ​ - ​ ​ 10 ​ ​ - Interest payable on deposits and borrowings ​ ​ 2,962 ​ ​ 2,962 ​ ​ - ​ ​ 2,962 ​ ​ - ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Financial Instruments with Of_2

Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions (Tables)	12 Months Ended
	Dec. 31, 2024
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Schedule of fair value of derivative financial instruments as well as their classification on the Balance Sheet	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2024 ​ No. of Trans. ​ Notional Amount $ ​ Balance Sheet Location Fair Value $ ​ Balance Sheet Location Fair Value $ Derivatives designated as hedging instruments ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements 5 ​ 325,774 ​ Other Assets 3,823 ​ Other Liabilities 1,512 Total derivatives designated as hedging instruments ​ ​ ​ ​ ​ 3,823 ​ ​ 1,512 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Derivatives not designated as hedging instruments ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swaps with commercial loan customers and rate cap 13 ​ 154,137 ​ Other Assets 1,675 ​ Other Liabilities 1,675 Interest rate lock commitments and forward contracts 30 ​ 8,667 ​ Other Assets 55 ​ Other Liabilities - Other contracts 5 ​ 58,259 ​ Other Assets 28 ​ Other Liabilities 5 Total derivatives not designated as hedging instruments ​ ​ ​ ​ ​ 1,758 ​ ​ 1,680 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ No. of Trans. ​ Notional Amount $ ​ Balance Sheet Location Fair Value $ ​ Balance Sheet Location Fair Value $ Derivatives designated as hedging instruments ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements 5 ​ 325,774 ​ Other Assets 2,576 ​ Other Liabilities 5,598 Total derivatives designated as hedging instruments ​ ​ ​ ​ ​ 2,576 ​ ​ 5,598 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Derivatives not designated as hedging instruments ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swaps with commercial loan customers 17 ​ 104,777 ​ Other Assets 2,726 ​ Other Liabilities 2,726 Interest rate lock commitments and forward contracts 24 ​ 8,375 ​ Other Assets (10) ​ Other Liabilities - Other contracts 4 ​ 44,790 ​ Other Assets 89 ​ Other Liabilities - Total derivatives not designated as hedging instruments ​ ​ ​ ​ ​ 2,805 ​ ​ 2,726

Parent Company Condensed Fina_2

Parent Company Condensed Financial Information (Tables)	12 Months Ended
	Dec. 31, 2024
Parent Company Condensed Financial Information
Schedule of condensed balance sheets	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Assets ​ ​ ​ ​ ​ ​ ​ Noninterest bearing deposit with bank subsidiary ​ $ 78,007 ​ $ 36,686 ​ Investment in subsidiaries ​ 671,894 ​ 620,663 ​ Other assets ​ 7,457 ​ 6,183 ​ Total assets ​ $ 757,358 ​ $ 663,532 ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities and Stockholders’ Equity ​ ​ ​ ​ ​ ​ ​ Junior subordinated debentures ​ $ 25,773 ​ $ 25,773 ​ Subordinated debt ​ 59,467 ​ 59,382 ​ Senior notes ​ ​ - ​ ​ - ​ Notes payable ​ ​ - ​ ​ - ​ Other liabilities ​ 1,084 ​ 1,096 ​ Stockholders’ equity ​ 671,034 ​ 577,281 ​ Total liabilities and stockholders' equity ​ $ 757,358 ​ $ 663,532 ​
Schedule of condensed statements of operations	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Operating Income ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash dividends received from subsidiaries ​ $ 55,000 ​ $ 65,000 ​ $ 40,000 Other income ​ 59 ​ 67 ​ 29 Total operating income ​ 55,059 ​ 65,067 ​ 40,029 Operating Expenses ​ ​ ​ ​ ​ ​ ​ ​ ​ Junior subordinated debentures ​ 1,127 ​ 1,095 ​ 1,136 Subordinated debt ​ ​ 2,185 ​ ​ 2,185 ​ ​ 2,185 Senior notes ​ ​ - ​ ​ 2,408 ​ ​ 2,682 Notes payable ​ - ​ 87 ​ 385 Other expenses ​ 6,209 ​ 5,947 ​ 5,086 Total operating expense ​ 9,521 ​ 11,722 ​ 11,474 Income before income taxes and equity in undistributed net income of subsidiaries ​ 45,538 ​ 53,345 ​ 28,555 Income tax benefit ​ (2,644) ​ (3,309) ​ (3,216) Income before equity in undistributed net income of subsidiaries ​ 48,182 ​ 56,654 ​ 31,771 Equity in undistributed net income of subsidiaries ​ 37,082 ​ 35,075 ​ 35,634 Net income available to common stockholders ​ $ 85,264 ​ $ 91,729 ​ $ 67,405
Schedule of condensed statements of cash Flows	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Cash Flows from Operating Activities ​ ​ ​ ​ ​ ​ ​ ​ ​ Net Income ​ $ 85,264 ​ $ 91,729 ​ $ 67,405 Adjustments to reconcile net income to net cash from operating activities: ​ ​ ​ ​ ​ ​ ​ ​ ​ Equity in undistributed net income of subsidiaries ​ (37,082) ​ (35,075) ​ (35,634) Provision for deferred tax (benefit) expense ​ (152) ​ (513) ​ 91 Change in taxes payable ​ (250) ​ 794 ​ (4,694) Change in other assets ​ 12 ​ (43) ​ 12 Stock-based compensation ​ 3,914 ​ 3,603 ​ 2,960 Other, net ​ 76 ​ 575 ​ (2,753) Net cash provided by operating activities ​ 51,782 ​ 61,070 ​ 27,387 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash Flows from Investing Activities ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash paid for acquisition, net of cash and cash equivalents retained ​ - ​ - ​ - Net cash provided by (used in) investing activities ​ - ​ - ​ - ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash Flows from Financing Activities ​ ​ ​ ​ ​ ​ ​ ​ ​ Dividend paid on common stock ​ ​ (9,413) ​ ​ (8,946) ​ ​ (8,877) Purchases of treasury stock ​ (1,048) ​ (605) ​ (455) Repayment of term note ​ ​ - ​ ​ (9,000) ​ ​ (4,000) Repayment of senior note ​ ​ - ​ ​ (45,000) ​ ​ - Net cash used in financing activities ​ (10,461) ​ (63,551) ​ (13,332) Net change in cash and cash equivalents ​ 41,321 ​ (2,481) ​ 14,055 Cash and cash equivalents at beginning of year ​ 36,686 ​ 39,167 ​ 25,112 Cash and cash equivalents at end of year ​ $ 78,007 ​ $ 36,686 ​ $ 39,167 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) $ / shares in Units, $ in Thousands		3 Months Ended	12 Months Ended
	Feb. 24, 2025 $ / shares shares	Mar. 31, 2025 $ / shares	Dec. 31, 2024 USD ($) segment Center $ / shares	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($) $ / shares
Number of banking centers | Center			53
Operating segment | segment			1
Reportable Segment | segment			1
Deferred tax assets			$ 24,534	$ 24,040
90-Days or Greater Past Due Loans
Period from due date after which accrual of interest income is discontinued			90 days
Goodwill and Core Deposit Intangible
Amortization of core deposit intangible			$ 2,440	$ 2,461	$ 2,626
Expected future annual amortization expense:
Percentage of forfeiture assumption for group grant			5%
Dividends declared per share | $ / shares			$ 0.21	$ 0.20	$ 0.20
Core Deposits
Goodwill and Core Deposit Intangible
Carrying value of the intangible asset			$ 22,000	$ 11,200
Amortization of core deposit intangible			2,400	$ 2,500	$ 2,600
Expected future annual amortization expense:
Estimated future amortization expense for the core deposit intangible for the year ending December 31, 2025			4,100
Estimated future amortization expense for the core deposit intangible for the year ending December 31, 2026			3,700
Estimated future amortization expense for the core deposit intangible for the year ending December 31, 2027			3,300
Estimated future amortization expense for the core deposit intangible for the year ending December 31, 2028			2,900
Estimated future amortization expense for the core deposit intangible for the year ending December 31, 2029			$ 2,600
GCFC/ABC Bank | Core Deposits
Goodwill and Core Deposit Intangible
Useful life (in years)			10 years
Subsequent Event | O 2025 Q1 Dividends
Expected future annual amortization expense:
Dividends declared date		Jan. 21, 2025
Dividends declared per share | $ / shares		$ 0.06
Dividends payable date		Feb. 10, 2025
Dividends record date		Jan. 31, 2025
Subsequent Event | Bancorp Financial
Expected future annual amortization expense:
Number of Shares receive | shares	2.5814
Cash consideration per share | $ / shares	$ 15.93

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Premises and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Transfers and Servicing of Financial Assets
Mortgage loans serviced for others	$ 709.1	$ 737.2
Other Assets
Premises and equipment
Fixed Assets Held for Sale	$ 1.4	$ 1
Buildings | Minimum
Premises and equipment
Useful lives	25 years
Buildings | Maximum
Premises and equipment
Useful lives	40 years
Building Improvements | Minimum
Premises and equipment
Useful lives	3 years
Building Improvements | Maximum
Premises and equipment
Useful lives	15 years
Furniture and equipment | Minimum
Premises and equipment
Useful lives	3 years
Furniture and equipment | Maximum
Premises and equipment
Useful lives	10 years

Acquisition (Details)

Acquisition (Details) $ in Thousands		12 Months Ended
	Dec. 06, 2024 USD ($) location	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Liabilities
Goodwill		$ 93,260	$ 86,478
First Merchants Corporation
Assets
Cash and due from banks	$ 419
Loans, net of purchase accounting adjustments	7,149
Premises and equipment	3,934
Core deposit intangible	13,254
Other assets	19
Total assets	24,775
Liabilities
Noninterest bearing demand	26,497
Savings, NOW and money market	157,126
Time	84,373
Total deposits	267,996
Other liabilities	585
Total liabilities	268,581
Cash consideration received	(237,023)
Total liabilities assumed and cash consideration received for transaction	31,558
Goodwill	$ 6,783
Number of branches acquired | location	5
Measurement period	1 year
Expenses related to acquisition		$ 1,900

Cash and Due from Banks (Detail

Cash and Due from Banks (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Cash and Due from Banks.
Cash and cash equivalents	$ 99,329	$ 100,145

Securities - Amortized Cost and

Securities - Amortized Cost and Fair Value (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) item	Dec. 31, 2023 USD ($)
Securities Available-for-Sale
Amortized Cost	$ 1,230,328,000	$ 1,276,981,000
Gross Unrealized Gains	2,152,000	1,818,000
Gross Unrealized Losses	(70,779,000)	(85,970,000)
Securities available-for-sale	1,161,701,000	1,192,829,000
Accrued interest receivable	7,100,000	6,600,000
FHLB and FRB Stock
FHLBC stock	4,500,000	18,500,000
FRBC stock	14,900,000	14,900,000
Securities pledged to secure deposits and for other purposes	$ 717,500,000	810,200,000
Other disclosures
Number of securities issued from originators	0
Number of originators | item	1
Minimum percentage of securities investment	10%
US government and agencies debt securities, percentage of guarantee	100%
US government and agencies debt securities, threshold percentage of guarantee for allowance of credit loss	100%
U.S. Treasury
Securities Available-for-Sale
Amortized Cost	$ 193,902,000	174,602,000
Gross Unrealized Gains	700,000
Gross Unrealized Losses	(459,000)	(5,028,000)
Securities available-for-sale	194,143,000	169,574,000
U.S. government agencies
Securities Available-for-Sale
Amortized Cost	39,202,000	60,011,000
Gross Unrealized Losses	(1,388,000)	(3,052,000)
Securities available-for-sale	37,814,000	56,959,000
U.S. government agencies mortgage-backed
Securities Available-for-Sale
Amortized Cost	112,241,000	118,492,000
Gross Unrealized Losses	(11,964,000)	(12,122,000)
Securities available-for-sale	100,277,000	106,370,000
States and political subdivisions
Securities Available-for-Sale
Amortized Cost	226,969,000	236,072,000
Gross Unrealized Gains	264,000	1,325,000
Gross Unrealized Losses	(11,777,000)	(10,332,000)
Securities available-for-sale	215,456,000	227,065,000
Collateralized mortgage obligations
Securities Available-for-Sale
Amortized Cost	411,170,000	442,987,000
Gross Unrealized Gains	647,000	421,000
Gross Unrealized Losses	(43,201,000)	(50,864,000)
Securities available-for-sale	368,616,000	392,544,000
Asset-backed Securities
Securities Available-for-Sale
Amortized Cost	64,215,000	71,616,000
Gross Unrealized Gains	69,000	42,000
Gross Unrealized Losses	(1,981,000)	(3,222,000)
Securities available-for-sale	62,303,000	68,436,000
Collateralized loan obligations.
Securities Available-for-Sale
Amortized Cost	182,629,000	173,201,000
Gross Unrealized Gains	472,000	30,000
Gross Unrealized Losses	(9,000)	(1,350,000)
Securities available-for-sale	$ 183,092,000	$ 171,881,000
Minimum
Other disclosures
Debt securities, available-for-sale, allowance for credit loss, percent of market value loss	5%
Debt securities, available-for-sale, allowance for credit loss, market value loss	$ 200,000

Securities - Contractual Maturi

Securities - Contractual Maturities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Securities Available-for-Sale, Amortized Cost
Due in one year or less	$ 94,725
Due after one year through five years	154,689
Due after five years through ten years	100,601
Due after ten years	110,058
Debt securities excluding securities not due at a single maturity date	460,073
Total	$ 1,230,328	$ 1,276,981
Securities Available-for-Sale, Weighted Average Yield
Due in one year or less (as a percent)	2.94%
Due after one year through five years (as a percent)	3.64%
Due after five years through ten years (as a percent)	2.91%
Due after ten years (as a percent)	3.20%
Debt securities (as a percent)	3.23%
Total (as a percent)	3.40%
Securities Available-for-Sale, Fair Value
Due in one year or less	$ 94,598
Due after one year through five years	153,679
Due after five years through ten years	94,215
Due after ten years	104,921
Debt securities	447,413
Debt Securities, Available-for-sale, Total	1,161,701	1,192,829
Mortgage-backed and collateralized mortgage obligations
Securities Available-for-Sale, Amortized Cost
Securities not due at a single maturity date	$ 523,411
Securities Available-for-Sale, Weighted Average Yield
Securities not due at a single maturity date, Weighted Average Yield (as a percent)	2.57%
Securities Available-for-Sale, Fair Value
Securities not due at a single maturity date	$ 468,893
Asset-backed Securities
Securities Available-for-Sale, Amortized Cost
Securities not due at a single maturity date	64,215
Total	$ 64,215	71,616
Securities Available-for-Sale, Weighted Average Yield
Securities not due at a single maturity date, Weighted Average Yield (as a percent)	3.70%
Securities Available-for-Sale, Fair Value
Securities not due at a single maturity date	$ 62,303
Debt Securities, Available-for-sale, Total	62,303	68,436
Collateralized loan obligations.
Securities Available-for-Sale, Amortized Cost
Securities not due at a single maturity date	182,629
Total	$ 182,629	173,201
Securities Available-for-Sale, Weighted Average Yield
Securities not due at a single maturity date, Weighted Average Yield (as a percent)	6.08%
Securities Available-for-Sale, Fair Value
Securities not due at a single maturity date	$ 183,092
Debt Securities, Available-for-sale, Total	$ 183,092	$ 171,881

Securities - Unrealized Loss Po

Securities - Unrealized Loss Positions (Details) $ in Thousands	Dec. 31, 2024 USD ($) security	Dec. 31, 2023 USD ($) security
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	45	14
Greater than 12 months in an unrealized loss position | security	317	353
Total | security	362	367
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 1,010	$ 145
Greater than 12 months in an unrealized loss position	69,769	85,825
Total	70,779	85,970
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	183,156	28,708
Greater than 12 months in an unrealized loss position	667,783	1,030,120
Total	850,939	1,058,828
Credit losses were determined	$ 0	$ 0
U.S. Treasury
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	4
Greater than 12 months in an unrealized loss position | security	1	4
Total | security	5	4
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 72
Greater than 12 months in an unrealized loss position	387	$ 5,028
Total	459	5,028
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	49,788
Greater than 12 months in an unrealized loss position	49,547	169,574
Total	$ 99,335	$ 169,574
U.S. government agencies
Securities Available-for-Sale, Number of Securities
Greater than 12 months in an unrealized loss position | security	8	9
Total | security	8	9
Securities Available-for-Sale, Unrealized Losses
Greater than 12 months in an unrealized loss position	$ 1,388	$ 3,052
Total	1,388	3,052
Securities Available-for-Sale, Fair Value
Greater than 12 months in an unrealized loss position	37,814	56,959
Total	$ 37,814	$ 56,959
Mortgage Backed Securities, Issued by US Government Agencies
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	1
Greater than 12 months in an unrealized loss position | security	128	128
Total | security	129	128
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 447
Greater than 12 months in an unrealized loss position	11,517	$ 12,122
Total	11,964	12,122
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	10,296
Greater than 12 months in an unrealized loss position	89,981	106,370
Total	$ 100,277	$ 106,370
States and political subdivisions
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	31	12
Greater than 12 months in an unrealized loss position | security	27	25
Total | security	58	37
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 455	$ 137
Greater than 12 months in an unrealized loss position	11,322	10,195
Total	11,777	10,332
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	85,457	27,974
Greater than 12 months in an unrealized loss position	111,308	106,138
Total	$ 196,765	$ 134,112
Collateralized mortgage obligations
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	3	2
Greater than 12 months in an unrealized loss position | security	139	143
Total | security	142	145
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 24	$ 8
Greater than 12 months in an unrealized loss position	43,177	50,856
Total	43,201	50,864
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	5,107	734
Greater than 12 months in an unrealized loss position	328,708	376,236
Total	$ 333,815	$ 376,970
Asset-backed Securities
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	2
Greater than 12 months in an unrealized loss position | security	13	19
Total | security	15	19
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 4
Greater than 12 months in an unrealized loss position	1,977	$ 3,222
Total	1,981	3,222
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	1,068
Greater than 12 months in an unrealized loss position	50,198	63,941
Total	$ 51,266	$ 63,941
Collateralized loan obligations.
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	4
Greater than 12 months in an unrealized loss position | security	1	25
Total | security	5	25
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 8
Greater than 12 months in an unrealized loss position	1	$ 1,350
Total	9	1,350
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	31,440
Greater than 12 months in an unrealized loss position	227	150,902
Total	$ 31,667	$ 150,902

Securities - Realized Gain (Los

Securities - Realized Gain (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Securities
Proceeds from sales of securities	$ 5,331	$ 205,738	$ 30,981
Gross realized gains on securities	1
Gross realized losses on securities	$ (1)	(4,148)	(944)
Net realized losses		(4,148)	(944)
Income tax benefit on net realized losses		$ 1,117	$ 265
Effective tax rate applied		26.90%	28.10%

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses on Loans - Major Classifications (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Loans
Total Loans	$ 3,981,336	$ 4,042,953
Allowance for credit losses	(43,619)	(44,264)	$ (49,480)	$ (44,281)
Net loans	3,937,717	3,998,689
Commercial
Loans
Total Loans	800,476	841,697
Allowance for credit losses	(7,813)	(3,998)	(11,968)	(11,751)
Leases
Loans
Total Loans	491,748	398,223
Allowance for credit losses	(2,136)	(2,952)	(2,865)	(3,480)
Commercial real estate - Investor
Loans
Total Loans	1,078,829	1,034,424
Allowance for credit losses	(14,528)	(17,105)	(10,674)	(10,795)
Commercial real estate - Owner occupied
Loans
Total Loans	683,283	796,538
Allowance for credit losses	(10,036)	(12,280)	(15,001)	(4,913)
Construction
Loans
Total Loans	201,716	165,380
Allowance for credit losses		(1,038)	(1,546)
Residential real estate - Investor
Loans
Total Loans	49,598	52,595
Allowance for credit losses	(553)	(669)	(768)	(760)
Residential real estate - Owner occupied
Loans
Total Loans	206,949	226,248
Allowance for credit losses	(1,509)	(1,821)	(2,046)	(2,832)
Multifamily
Loans
Total Loans	351,325	401,696
Allowance for credit losses	(1,876)	(2,728)	(2,453)	(3,675)
HELOC
Loans
Total Loans	103,388	103,237
Allowance for credit losses	(1,578)	(1,656)	$ (1,806)	$ (2,510)
Others
Loans
Total Loans	$ 14,024	$ 22,915

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses on Loans - Major Classifications - Loan Concentrations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Loans
Loans and leases receivable, accrued interest receivable	$ 17.5	$ 20.5
Real estate | Loan receivables | Customer Concentration Risk
Loans
Loans receivable as a percentage of total portfolio	67.20%	68.80%

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses on Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	$ 44,264	$ 49,480	$ 44,281
Provision for (Release of) Credit Losses	13,584	18,086	6,750
Charge-offs	19,111	24,642	2,460
Recoveries	4,882	1,340	909
Financing Receivable, Allowance for Credit Loss, Ending Balance	43,619	44,264	49,480
Commercial
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	3,998	11,968	11,751
Provision for (Release of) Credit Losses	12,352	(7,717)	273
Charge-offs	8,686	885	151
Recoveries	149	632	95
Financing Receivable, Allowance for Credit Loss, Ending Balance	7,813	3,998	11,968
Leases
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	2,952	2,865	3,480
Provision for (Release of) Credit Losses	(770)	850	(246)
Charge-offs	149	882	371
Recoveries	103	119	2
Financing Receivable, Allowance for Credit Loss, Ending Balance	2,136	2,952	2,865
Commercial real estate - Investor
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	17,105	10,674	10,795
Provision for (Release of) Credit Losses	1,594	18,170	1,199
Charge-offs	4,596	11,816	1,401
Recoveries	425	77	81
Financing Receivable, Allowance for Credit Loss, Ending Balance	14,528	17,105	10,674
Commercial real estate - Owner occupied
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	12,280	15,001	4,913
Provision for (Release of) Credit Losses	(997)	7,941	10,117
Charge-offs	5,154	10,691	133
Recoveries	3,907	29	104
Financing Receivable, Allowance for Credit Loss, Ending Balance	10,036	12,280	15,001
Real estate - construction
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	1,038	1,546	3,373
Provision for (Release of) Credit Losses	2,543		(1,827)
Financing Receivable, Allowance for Credit Loss, Ending Balance	3,581	1,038	1,546
Construction
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	1,038	1,546
Provision for (Release of) Credit Losses		(608)
Recoveries		100
Financing Receivable, Allowance for Credit Loss, Ending Balance		1,038	1,546
Residential real estate - Investor
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	669	768	760
Provision for (Release of) Credit Losses	(141)	(129)	(22)
Recoveries	25	30	30
Financing Receivable, Allowance for Credit Loss, Ending Balance	553	669	768
Residential real estate - Owner occupied
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	1,821	2,046	2,832
Provision for (Release of) Credit Losses	(106)	(304)	(1,010)
Charge-offs	242		2
Recoveries	36	79	226
Financing Receivable, Allowance for Credit Loss, Ending Balance	1,509	1,821	2,046
Multifamily
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	2,728	2,453	3,675
Provision for (Release of) Credit Losses	(852)	275	(1,285)
Recoveries			63
Financing Receivable, Allowance for Credit Loss, Ending Balance	1,876	2,728	2,453
HELOC
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	1,656	1,806	2,510
Provision for (Release of) Credit Losses	(169)	(255)	(844)
Recoveries	91	105	140
Financing Receivable, Allowance for Credit Loss, Ending Balance	1,578	1,656	1,806
Other
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	17	353	192
Provision for (Release of) Credit Losses	130	(137)	395
Charge-offs	284	368	402
Recoveries	146	169	168
Financing Receivable, Allowance for Credit Loss, Ending Balance	$ 9	$ 17	$ 353

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses on Loans - Collateral dependent loans (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Loans
Total loans, including deferred loan loan costs and PCI	$ 3,937,717	$ 3,998,689
ACL Allocation	43,619	44,264	$ 49,480	$ 44,281
Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	26,249	63,115
Real Estate | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	19,758	61,997
Accounts Receivable | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	6,491	797
Equipment | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI		321
Collateral
Loans
ACL Allocation	7,191	7,878
Commercial
Loans
ACL Allocation	7,813	3,998	11,968	11,751
Commercial | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	6,491	1,634
Commercial | Real Estate | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI		837
Commercial | Accounts Receivable | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	6,491	797
Commercial | Collateral
Loans
ACL Allocation	2,448	2
Leases
Loans
ACL Allocation	2,136	2,952	2,865	3,480
Leases | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI		321
Leases | Equipment | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI		321
Leases | Collateral
Loans
ACL Allocation		320
Commercial real estate - Investor
Loans
ACL Allocation	14,528	17,105	10,674	10,795
Commercial real estate - Investor | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	1,644	15,735
Commercial real estate - Investor | Real Estate | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	1,644	15,735
Commercial real estate - Investor | Collateral
Loans
ACL Allocation		3,656
Commercial real estate - Owner occupied
Loans
ACL Allocation	10,036	12,280	15,001	4,913
Commercial real estate - Owner occupied | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	10,018	34,894
Commercial real estate - Owner occupied | Real Estate | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	10,018	34,894
Commercial real estate - Owner occupied | Collateral
Loans
ACL Allocation	3,951	3,900
Construction
Loans
ACL Allocation		1,038	1,546
Construction | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	5,800	7,162
Construction | Real Estate | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	5,800	7,162
Construction | Collateral
Loans
ACL Allocation	792
Residential real estate - Investor
Loans
ACL Allocation	553	669	768	760
Residential real estate - Investor | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	404	422
Residential real estate - Investor | Real Estate | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	404	422
Residential real estate - Owner occupied
Loans
ACL Allocation	1,509	1,821	2,046	2,832
Residential real estate - Owner occupied | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	1,056	1,506
Residential real estate - Owner occupied | Real Estate | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	1,056	1,506
Multifamily
Loans
ACL Allocation	1,876	2,728	2,453	3,675
Multifamily | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	836	1,402
Multifamily | Real Estate | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI	836	1,402
HELOC
Loans
ACL Allocation	1,578	1,656	1,806	2,510
HELOC | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI		39
HELOC | Real Estate | Asset Pledged as Collateral without Right
Loans
Total loans, including deferred loan loan costs and PCI		39
Other
Loans
ACL Allocation	$ 9	$ 17	$ 353	$ 192

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses on Loans - Aging Analysis (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Aged analysis of past due loans
Total Loans	$ 3,981,336	$ 4,042,953
Recorded Investment 90 days or Greater Past Due and Accruing	1,436	1,196
Special Mention
Aged analysis of past due loans
Total Loans	37,892	70,577
Financial Asset, Past Due
Aged analysis of past due loans
Current	27,277	49,392
30 to 59 Days Past Due
Aged analysis of past due loans
Current	8,175	10,176
60 to 89 Days Past Due
Aged analysis of past due loans
Current	3,755	6,134
90 Days or Greater Past Due
Aged analysis of past due loans
Current	15,347	33,082
Financial Asset, Not Past Due
Aged analysis of past due loans
Current	3,954,059	3,993,561
Commercial
Aged analysis of past due loans
Total Loans	800,476	841,697
Recorded Investment 90 days or Greater Past Due and Accruing	1,397	1,155
Commercial | Special Mention
Aged analysis of past due loans
Total Loans	9,699	8,007
Commercial | Financial Asset, Past Due
Aged analysis of past due loans
Current	7,277	2,210
Commercial | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	219	982
Commercial | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	95
Commercial | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	6,963	1,228
Commercial | Financial Asset, Not Past Due
Aged analysis of past due loans
Current	793,199	839,487
Leases
Aged analysis of past due loans
Total Loans	491,748	398,223
Leases | Special Mention
Aged analysis of past due loans
Total Loans	821
Leases | Financial Asset, Past Due
Aged analysis of past due loans
Current	2,162	946
Leases | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	1,438	599
Leases | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	372
Leases | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	352	347
Leases | Financial Asset, Not Past Due
Aged analysis of past due loans
Current	489,586	397,277
Commercial real estate - Investor
Aged analysis of past due loans
Total Loans	1,078,829	1,034,424
Commercial real estate - Investor | Special Mention
Aged analysis of past due loans
Total Loans		11,267
Commercial real estate - Investor | Financial Asset, Past Due
Aged analysis of past due loans
Current	2,423	7,296
Commercial real estate - Investor | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	2,021	1,209
Commercial real estate - Investor | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	402
Commercial real estate - Investor | 90 Days or Greater Past Due
Aged analysis of past due loans
Current		6,087
Commercial real estate - Investor | Financial Asset, Not Past Due
Aged analysis of past due loans
Current	1,076,406	1,027,128
Commercial real estate - Owner occupied
Aged analysis of past due loans
Total Loans	683,283	796,538
Commercial real estate - Owner occupied | Special Mention
Aged analysis of past due loans
Total Loans	20,234	35,677
Commercial real estate - Owner occupied | Financial Asset, Past Due
Aged analysis of past due loans
Current	3,645	21,474
Commercial real estate - Owner occupied | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	1,123	2,103
Commercial real estate - Owner occupied | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	2,479	3,726
Commercial real estate - Owner occupied | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	43	15,645
Commercial real estate - Owner occupied | Financial Asset, Not Past Due
Aged analysis of past due loans
Current	679,638	775,064
Real estate - construction
Aged analysis of past due loans
Total Loans	201,716	165,380
Real estate - construction | Financial Asset, Past Due
Aged analysis of past due loans
Current	5,799	10,008
Real estate - construction | 30 to 59 Days Past Due
Aged analysis of past due loans
Current		2,540
Real estate - construction | 60 to 89 Days Past Due
Aged analysis of past due loans
Current		307
Real estate - construction | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	5,799	7,161
Real estate - construction | Financial Asset, Not Past Due
Aged analysis of past due loans
Current	195,917	155,372
Residential real estate - Investor
Aged analysis of past due loans
Total Loans	49,598	52,595
Residential real estate - Investor | Special Mention
Aged analysis of past due loans
Total Loans		66
Residential real estate - Investor | Financial Asset, Past Due
Aged analysis of past due loans
Current	1,202	1,287
Residential real estate - Investor | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	763	540
Residential real estate - Investor | 60 to 89 Days Past Due
Aged analysis of past due loans
Current		579
Residential real estate - Investor | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	439	168
Residential real estate - Investor | Financial Asset, Not Past Due
Aged analysis of past due loans
Current	48,396	51,308
Residential real estate - Owner occupied
Aged analysis of past due loans
Total Loans	206,949	226,248
Residential real estate - Owner occupied | Financial Asset, Past Due
Aged analysis of past due loans
Current	3,088	2,622
Residential real estate - Owner occupied | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	2,489	553
Residential real estate - Owner occupied | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	90	125
Residential real estate - Owner occupied | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	509	1,944
Residential real estate - Owner occupied | Financial Asset, Not Past Due
Aged analysis of past due loans
Current	203,861	223,626
Multifamily
Aged analysis of past due loans
Total Loans	351,325	401,696
Multifamily | Special Mention
Aged analysis of past due loans
Total Loans		15,560
Multifamily | Financial Asset, Past Due
Aged analysis of past due loans
Current	1,273	1,318
Multifamily | 30 to 59 Days Past Due
Aged analysis of past due loans
Current		1,085
Multifamily | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	233
Multifamily | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	1,040	233
Multifamily | Financial Asset, Not Past Due
Aged analysis of past due loans
Current	350,052	400,378
HELOC
Aged analysis of past due loans
Total Loans	103,388	103,237
Recorded Investment 90 days or Greater Past Due and Accruing	39	41
HELOC | Financial Asset, Past Due
Aged analysis of past due loans
Current	385	2,230
HELOC | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	109	565
HELOC | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	74	1,396
HELOC | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	202	269
HELOC | Financial Asset, Not Past Due
Aged analysis of past due loans
Current	103,003	101,007
Other
Aged analysis of past due loans
Total Loans	14,024	22,915
Other | Financial Asset, Past Due
Aged analysis of past due loans
Current	23	1
Other | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	13
Other | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	10	1
Other | Financial Asset, Not Past Due
Aged analysis of past due loans
Current	$ 14,001	$ 22,914

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses on Loans - Nonaccruals (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Nonaccrual loans
Nonaccrual	$ 28,851,000	$ 67,583,000
Nonaccrual with no ACL	8,760,000	33,099,000
Interest on nonaccrual loans	815,000	1,900,000
Accrued interest reversed against interest income	4,200,000	1,300,000
Commercial
Nonaccrual loans
Nonaccrual	5,591,000	870,000
Nonaccrual with no ACL	497,000	870,000
Leases
Nonaccrual loans
Nonaccrual	523,000	639,000
Nonaccrual with no ACL	523,000	318,000
Commercial real estate - Investor
Nonaccrual loans
Nonaccrual	1,981,000	16,572,000
Nonaccrual with no ACL	1,981,000	8,926,000
Commercial real estate - Owner occupied
Nonaccrual loans
Nonaccrual	10,604,000	34,946,000
Nonaccrual with no ACL	1,407,000	8,429,000
Real estate - construction
Nonaccrual loans
Nonaccrual	5,800,000	7,162,000
Nonaccrual with no ACL		7,162,000
Residential real estate - Investor
Nonaccrual loans
Nonaccrual	1,158,000	1,331,000
Nonaccrual with no ACL	1,158,000	1,331,000
Residential real estate - Owner occupied
Nonaccrual loans
Nonaccrual	1,653,000	3,078,000
Nonaccrual with no ACL	1,653,000	3,078,000
Multifamily
Nonaccrual loans
Nonaccrual	1,165,000	1,775,000
Nonaccrual with no ACL	1,165,000	1,775,000
HELOC
Nonaccrual loans
Nonaccrual	366,000	1,210,000
Nonaccrual with no ACL	366,000	$ 1,210,000
Other
Nonaccrual loans
Nonaccrual	10,000
Nonaccrual with no ACL	$ 10,000

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses on Loans - Credit Quality (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
The gross charge-offs activity by loan type and year of origination
2024 / 2023	$ 988,880,000	$ 965,644,000
2023 / 2022	740,096,000	997,009,000
2022/ 2021	808,157,000	737,065,000
2021 / 2020	537,229,000	367,981,000
2020/ 2019	251,786,000	192,786,000
Prior	311,052,000	306,846,000
Revolving Loans	342,857,000	474,214,000
Revolving Loans Converted To Term Loans	1,279,000	1,408,000
Total Loans	3,981,336,000	4,042,953,000
Minimum
The gross charge-offs activity by loan type and year of origination
Loan commitment for inclusion in credit quality analysis	50,000
Pass
The gross charge-offs activity by loan type and year of origination
2024 / 2023	984,681,000	963,994,000
2023 / 2022	735,516,000	958,129,000
2022/ 2021	765,954,000	682,010,000
2021 / 2020	516,166,000	344,237,000
2020/ 2019	238,614,000	158,932,000
Prior	289,683,000	280,746,000
Revolving Loans	319,558,000	450,136,000
Revolving Loans Converted To Term Loans	1,279,000	1,408,000
Total Loans	3,851,451,000	3,839,592,000
Special Mention
The gross charge-offs activity by loan type and year of origination
2024 / 2023	3,864,000	1,650,000
2023 / 2022	2,791,000	20,320,000
2022/ 2021	15,650,000	35,050,000
2021 / 2020	7,676,000	3,621,000
2020/ 2019	3,033,000	1,863,000
Prior	975,000	3,681,000
Revolving Loans	3,903,000	4,392,000
Total Loans	37,892,000	70,577,000
Substandard
The gross charge-offs activity by loan type and year of origination
2024 / 2023	335,000
2023 / 2022	1,789,000	18,560,000
2022/ 2021	26,553,000	20,005,000
2021 / 2020	12,001,000	20,123,000
2020/ 2019	10,139,000	31,991,000
Prior	20,394,000	22,419,000
Revolving Loans	19,396,000	19,686,000
Total Loans	90,607,000	132,784,000
Doubtful [Member]
The gross charge-offs activity by loan type and year of origination
2021 / 2020	1,386,000
Total Loans	1,386,000
Commercial
The gross charge-offs activity by loan type and year of origination
2024 / 2023	303,727,000	318,569,000
2023 / 2022	178,192,000	141,504,000
2022/ 2021	60,915,000	36,754,000
2021 / 2020	20,318,000	12,154,000
2020/ 2019	4,999,000	18,589,000
Prior	6,527,000	3,426,000
Revolving Loans	224,519,000	309,293,000
Revolving Loans Converted To Term Loans	1,279,000	1,408,000
Total Loans	800,476,000	841,697,000
Commercial | Pass
The gross charge-offs activity by loan type and year of origination
2024 / 2023	299,863,000	318,569,000
2023 / 2022	176,549,000	136,668,000
2022/ 2021	56,619,000	35,901,000
2021 / 2020	18,679,000	11,983,000
2020/ 2019	4,999,000	18,390,000
Prior	6,527,000	3,426,000
Revolving Loans	201,514,000	298,931,000
Revolving Loans Converted To Term Loans	1,279,000	1,408,000
Total Loans	766,029,000	825,276,000
Commercial | Special Mention
The gross charge-offs activity by loan type and year of origination
2024 / 2023	3,864,000
2023 / 2022	1,629,000	2,737,000
2022/ 2021	127,000	707,000
2021 / 2020	176,000	171,000
Revolving Loans	3,903,000	4,392,000
Total Loans	9,699,000	8,007,000
Commercial | Substandard
The gross charge-offs activity by loan type and year of origination
2023 / 2022	14,000	2,099,000
2022/ 2021	4,169,000	146,000
2021 / 2020	77,000
2020/ 2019		199,000
Revolving Loans	19,102,000	5,970,000
Total Loans	23,362,000	8,414,000
Commercial | Doubtful [Member]
The gross charge-offs activity by loan type and year of origination
2021 / 2020	1,386,000
Total Loans	1,386,000
Real estate - residential loans
The gross charge-offs activity by loan type and year of origination
Mortgage loans in process of foreclosure	469,000	170,000
Leases
The gross charge-offs activity by loan type and year of origination
2024 / 2023	239,664,000	219,163,000
2023 / 2022	151,372,000	113,481,000
2022/ 2021	67,723,000	42,478,000
2021 / 2020	24,546,000	14,663,000
2020/ 2019	6,145,000	7,183,000
Prior	2,298,000	1,255,000
Total Loans	491,748,000	398,223,000
Leases | Pass
The gross charge-offs activity by loan type and year of origination
2024 / 2023	239,664,000	219,163,000
2023 / 2022	151,372,000	113,074,000
2022/ 2021	66,379,000	42,275,000
2021 / 2020	24,546,000	14,663,000
2020/ 2019	6,145,000	6,975,000
Prior	2,298,000	1,255,000
Total Loans	490,404,000	397,405,000
Leases | Special Mention
The gross charge-offs activity by loan type and year of origination
2022/ 2021	821,000
Total Loans	821,000
Leases | Substandard
The gross charge-offs activity by loan type and year of origination
2023 / 2022		407,000
2022/ 2021	523,000	203,000
2020/ 2019		208,000
Total Loans	523,000	818,000
Commercial real estate - Investor
The gross charge-offs activity by loan type and year of origination
2024 / 2023	244,318,000	159,654,000
2023 / 2022	160,653,000	367,512,000
2022/ 2021	305,506,000	230,189,000
2021 / 2020	191,651,000	113,711,000
2020/ 2019	90,245,000	69,980,000
Prior	79,652,000	72,929,000
Revolving Loans	6,804,000	20,449,000
Total Loans	1,078,829,000	1,034,424,000
Commercial real estate - Investor | Pass
The gross charge-offs activity by loan type and year of origination
2024 / 2023	243,983,000	159,654,000
2023 / 2022	159,008,000	367,512,000
2022/ 2021	305,506,000	218,084,000
2021 / 2020	191,651,000	108,384,000
2020/ 2019	90,245,000	54,322,000
Prior	67,143,000	63,281,000
Revolving Loans	6,804,000	8,122,000
Total Loans	1,064,340,000	979,359,000
Commercial real estate - Investor | Special Mention
The gross charge-offs activity by loan type and year of origination
2022/ 2021		11,267,000
Total Loans		11,267,000
Commercial real estate - Investor | Substandard
The gross charge-offs activity by loan type and year of origination
2024 / 2023	335,000
2023 / 2022	1,645,000
2022/ 2021		838,000
2021 / 2020		5,327,000
2020/ 2019		15,658,000
Prior	12,509,000	9,648,000
Revolving Loans		12,327,000
Total Loans	14,489,000	43,798,000
Commercial real estate - Owner occupied
The gross charge-offs activity by loan type and year of origination
2024 / 2023	91,012,000	125,709,000
2023 / 2022	115,542,000	166,428,000
2022/ 2021	142,564,000	205,955,000
2021 / 2020	140,393,000	110,808,000
2020/ 2019	90,849,000	57,866,000
Prior	88,639,000	96,529,000
Revolving Loans	14,284,000	33,243,000
Total Loans	683,283,000	796,538,000
Commercial real estate - Owner occupied | Pass
The gross charge-offs activity by loan type and year of origination
2024 / 2023	91,012,000	124,059,000
2023 / 2022	114,255,000	134,383,000
2022/ 2021	133,488,000	177,553,000
2021 / 2020	121,652,000	103,109,000
2020/ 2019	77,919,000	42,839,000
Prior	82,820,000	91,062,000
Revolving Loans	14,284,000	33,243,000
Total Loans	635,430,000	706,248,000
Commercial real estate - Owner occupied | Special Mention
The gross charge-offs activity by loan type and year of origination
2024 / 2023		1,650,000
2023 / 2022	1,162,000	17,415,000
2022/ 2021	7,908,000	9,585,000
2021 / 2020	7,500,000	3,128,000
2020/ 2019	3,033,000	218,000
Prior	631,000	3,681,000
Total Loans	20,234,000	35,677,000
Commercial real estate - Owner occupied | Substandard
The gross charge-offs activity by loan type and year of origination
2023 / 2022	125,000	14,630,000
2022/ 2021	1,168,000	18,817,000
2021 / 2020	11,241,000	4,571,000
2020/ 2019	9,897,000	14,809,000
Prior	5,188,000	1,786,000
Total Loans	27,619,000	54,613,000
Construction
The gross charge-offs activity by loan type and year of origination
2024 / 2023	44,699,000	42,808,000
2023 / 2022	27,928,000	66,513,000
2022/ 2021	109,367,000	32,942,000
2021 / 2020	17,747,000	10,093,000
2020/ 2019	82,000	1,593,000
Prior	1,425,000	8,245,000
Revolving Loans	468,000	3,186,000
Total Loans	201,716,000	165,380,000
Construction | Pass
The gross charge-offs activity by loan type and year of origination
2024 / 2023	44,699,000	42,808,000
2023 / 2022	27,928,000	66,513,000
2022/ 2021	83,222,000	32,942,000
2021 / 2020	17,747,000	100,000
2020/ 2019	82,000	1,593,000
Prior	1,081,000	1,083,000
Revolving Loans	468,000	3,186,000
Total Loans	175,227,000	148,225,000
Construction | Special Mention
The gross charge-offs activity by loan type and year of origination
2022/ 2021	6,794,000
Prior	344,000
Total Loans	7,138,000
Construction | Substandard
The gross charge-offs activity by loan type and year of origination
2022/ 2021	19,351,000
2021 / 2020		9,993,000
Prior		7,162,000
Total Loans	19,351,000	17,155,000
Residential real estate - Investor
The gross charge-offs activity by loan type and year of origination
2024 / 2023	5,595,000	5,062,000
2023 / 2022	3,833,000	14,824,000
2022/ 2021	13,741,000	9,093,000
2021 / 2020	8,592,000	6,227,000
2020/ 2019	5,693,000	6,916,000
Prior	10,596,000	9,002,000
Revolving Loans	1,548,000	1,471,000
Total Loans	49,598,000	52,595,000
Residential real estate - Investor | Pass
The gross charge-offs activity by loan type and year of origination
2024 / 2023	5,595,000	5,062,000
2023 / 2022	3,833,000	14,434,000
2022/ 2021	13,366,000	9,027,000
2021 / 2020	8,060,000	6,227,000
2020/ 2019	5,693,000	6,508,000
Prior	9,813,000	8,469,000
Revolving Loans	1,548,000	1,471,000
Total Loans	47,908,000	51,198,000
Residential real estate - Investor | Special Mention
The gross charge-offs activity by loan type and year of origination
2022/ 2021		66,000
Total Loans		66,000
Residential real estate - Investor | Substandard
The gross charge-offs activity by loan type and year of origination
2023 / 2022		390,000
2022/ 2021	375,000
2021 / 2020	532,000
2020/ 2019		408,000
Prior	783,000	533,000
Total Loans	1,690,000	1,331,000
Residential real estate - Owner occupied
The gross charge-offs activity by loan type and year of origination
2024 / 2023	11,609,000	32,574,000
2023 / 2022	29,670,000	41,528,000
2022/ 2021	35,786,000	40,335,000
2021 / 2020	32,911,000	25,513,000
2020/ 2019	22,996,000	14,918,000
Prior	73,207,000	70,617,000
Revolving Loans	770,000	763,000
Total Loans	206,949,000	226,248,000
Residential real estate - Owner occupied | Pass
The gross charge-offs activity by loan type and year of origination
2024 / 2023	11,609,000	32,574,000
2023 / 2022	29,670,000	41,528,000
2022/ 2021	35,786,000	40,335,000
2021 / 2020	32,760,000	25,322,000
2020/ 2019	22,996,000	14,233,000
Prior	71,507,000	68,277,000
Revolving Loans	770,000	763,000
Total Loans	205,098,000	223,032,000
Residential real estate - Owner occupied | Substandard
The gross charge-offs activity by loan type and year of origination
2021 / 2020	151,000	191,000
2020/ 2019		685,000
Prior	1,700,000	2,340,000
Total Loans	1,851,000	3,216,000
Multifamily
The gross charge-offs activity by loan type and year of origination
2024 / 2023	39,133,000	55,310,000
2023 / 2022	68,781,000	80,237,000
2022/ 2021	68,994,000	137,259,000
2021 / 2020	100,049,000	72,861,000
2020/ 2019	29,263,000	13,876,000
Prior	44,735,000	41,591,000
Revolving Loans	370,000	562,000
Total Loans	351,325,000	401,696,000
Multifamily | Pass
The gross charge-offs activity by loan type and year of origination
2024 / 2023	39,133,000	55,310,000
2023 / 2022	68,781,000	79,060,000
2022/ 2021	68,032,000	123,834,000
2021 / 2020	100,049,000	72,539,000
2020/ 2019	29,060,000	12,231,000
Prior	44,735,000	40,825,000
Revolving Loans	370,000	562,000
Total Loans	350,160,000	384,361,000
Multifamily | Special Mention
The gross charge-offs activity by loan type and year of origination
2023 / 2022		168,000
2022/ 2021		13,425,000
2021 / 2020		322,000
2020/ 2019		1,645,000
Total Loans		15,560,000
Multifamily | Substandard
The gross charge-offs activity by loan type and year of origination
2023 / 2022		1,009,000
2022/ 2021	962,000
2020/ 2019	203,000
Prior		766,000
Total Loans	1,165,000	1,775,000
HELOC
The gross charge-offs activity by loan type and year of origination
2024 / 2023	2,602,000	2,735,000
2023 / 2022	2,561,000	2,704,000
2022/ 2021	2,118,000	491,000
2021 / 2020	383,000	1,798,000
2020/ 2019	1,422,000	1,780,000
Prior	3,966,000	3,179,000
Revolving Loans	90,336,000	90,550,000
Total Loans	103,388,000	103,237,000
HELOC | Pass
The gross charge-offs activity by loan type and year of origination
2024 / 2023	2,602,000	2,735,000
2023 / 2022	2,561,000	2,679,000
2022/ 2021	2,118,000	490,000
2021 / 2020	383,000	1,757,000
2020/ 2019	1,383,000	1,756,000
Prior	3,752,000	2,995,000
Revolving Loans	90,042,000	89,161,000
Total Loans	102,841,000	101,573,000
HELOC | Substandard
The gross charge-offs activity by loan type and year of origination
2023 / 2022		25,000
2022/ 2021		1,000
2021 / 2020		41,000
2020/ 2019	39,000	24,000
Prior	214,000	184,000
Revolving Loans	294,000	1,389,000
Total Loans	547,000	1,664,000
Other
The gross charge-offs activity by loan type and year of origination
2024 / 2023	6,521,000	4,060,000
2023 / 2022	1,564,000	2,278,000
2022/ 2021	1,443,000	1,569,000
2021 / 2020	639,000	153,000
2020/ 2019	92,000	85,000
Prior	7,000	73,000
Revolving Loans	3,758,000	14,697,000
Total Loans	14,024,000	22,915,000
Other | Pass
The gross charge-offs activity by loan type and year of origination
2024 / 2023	6,521,000	4,060,000
2023 / 2022	1,559,000	2,278,000
2022/ 2021	1,438,000	1,569,000
2021 / 2020	639,000	153,000
2020/ 2019	92,000	85,000
Prior	7,000	73,000
Revolving Loans	3,758,000	14,697,000
Total Loans	14,014,000	$ 22,915,000
Other | Substandard
The gross charge-offs activity by loan type and year of origination
2023 / 2022	5,000
2022/ 2021	5,000
Total Loans	$ 10,000

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses on Loans - Charge-offs Activity by Loan Type (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Loans by risk rating
2024 / 2023	$ 36	$ 123
2023 / 2022	7,205	9,247
2022 / 2021	4,980	742
2021 / 2020	6,310	10,587
2020 / 2019	16	3,524
Prior	564	419
Total	19,111	24,642	$ 2,460
Commercial
Loans by risk rating
2024 / 2023	31
2023 / 2022	7,205
2022 / 2021	756	466
2021 / 2020	670	364
Prior	24	55
Total	8,686	885	151
Leases
Loans by risk rating
2023 / 2022		870
2022 / 2021	96
2021 / 2020	53
2020 / 2019		12
Total	149	882	371
Commercial real estate - Investor
Loans by risk rating
2024 / 2023		123
2023 / 2022		8,352
2022 / 2021	4,128	71
2021 / 2020	452	3,270
2020 / 2019	16
Total	4,596	11,816	1,401
Commercial real estate - Owner occupied
Loans by risk rating
2023 / 2022		22
2022 / 2021		178
2021 / 2020	5,135	6,947
2020 / 2019		3,512
Prior	19	32
Total	5,154	10,691	133
Residential real estate - Owner occupied
Loans by risk rating
Prior	242
Total	242		2
Other
Loans by risk rating
2024 / 2023	5
2023 / 2022		3
2022 / 2021		27
2021 / 2020		6
Prior	279	332
Total	$ 284	$ 368	$ 402

Loans and Allowance for Cred_11

Loans and Allowance for Credit Losses on Loans - Loan Modifications (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) contract loan	Dec. 31, 2023 USD ($) loan
Financing Receivable
Total Loans modified	$ 0	$ 2,000
Total Loans modified	$ 46,925	$ 41,746
Total Loan Segment Modified to Total Loan Segment	1.20%	1%
Weighted-Average Term Extension (In Months)	8 months 27 days	10 months 19 days
Weighted-Average Interest Rate Change	0.69%	5%
Weighted-Average Delay of Payment (In Months)	4 months	7 months
Number of payment modification | loan	15	18
Number of contracts | contract	3
30 to 59 Days Past Due
Financing Receivable
Total Loans modified		$ 838
90 Days or Greater Past Due
Financing Receivable
Total Loans modified		1,212
Total Past Due
Financing Receivable
Total Loans modified		2,050
Current
Financing Receivable
Total Loans modified	$ 46,925	39,696
Term Extension
Financing Receivable
Total Loans modified	38,104	33,121
Combination - Term Extension and Payment Delay
Financing Receivable
Total Loans modified	5,406
Combination - Term Extension, Interest Rate Modification, Payment Modification, and Principal Reduction
Financing Receivable
Total Loans modified	3,206	979
Combination - Term Extension and Payment Modification
Financing Receivable
Total Loans modified	209	7,646
Commercial
Financing Receivable
Total Loans modified	$ 7,179	$ 3,979
Total Loan Segment Modified to Total Loan Segment	0.90%	0.50%
Weighted-Average Term Extension (In Months)	6 months 14 days	8 months 9 days
Weighted-Average Interest Rate Change	0.50%	5%
Weighted-Average Delay of Payment (In Months)	4 months
Commercial | 90 Days or Greater Past Due
Financing Receivable
Total Loans modified		$ 979
Commercial | Total Past Due
Financing Receivable
Total Loans modified		979
Commercial | Current
Financing Receivable
Total Loans modified	$ 7,179	3,000
Commercial | Term Extension
Financing Receivable
Total Loans modified	3,385	3,000
Commercial | Combination - Term Extension and Payment Delay
Financing Receivable
Total Loans modified	3,794
Commercial | Combination - Term Extension, Interest Rate Modification, Payment Modification, and Principal Reduction
Financing Receivable
Total Loans modified		979
Commercial real estate - Investor
Financing Receivable
Total Loans modified	$ 12,509	$ 21,167
Total Loan Segment Modified to Total Loan Segment	1.20%	2%
Weighted-Average Term Extension (In Months)	6 months	9 months 29 days
Weighted-Average Delay of Payment (In Months)		7 months
Commercial real estate - Investor | 30 to 59 Days Past Due
Financing Receivable
Total Loans modified		$ 838
Commercial real estate - Investor | Total Past Due
Financing Receivable
Total Loans modified		838
Commercial real estate - Investor | Current
Financing Receivable
Total Loans modified	$ 12,509	20,329
Commercial real estate - Investor | Term Extension
Financing Receivable
Total Loans modified	12,509	13,521
Commercial real estate - Investor | Combination - Term Extension and Payment Modification
Financing Receivable
Total Loans modified		7,646
Commercial real estate - Owner occupied
Financing Receivable
Total Loans modified	$ 26,040	$ 16,082
Total Loan Segment Modified to Total Loan Segment	3.80%	2%
Weighted-Average Term Extension (In Months)	8 months 17 days	11 months 19 days
Weighted-Average Interest Rate Change	0.15%
Commercial real estate - Owner occupied | Current
Financing Receivable
Total Loans modified	$ 26,040	$ 16,082
Commercial real estate - Owner occupied | Term Extension
Financing Receivable
Total Loans modified	22,210	16,082
Commercial real estate - Owner occupied | Combination - Term Extension and Payment Delay
Financing Receivable
Total Loans modified	415
Commercial real estate - Owner occupied | Combination - Term Extension, Interest Rate Modification, Payment Modification, and Principal Reduction
Financing Receivable
Total Loans modified	3,206
Commercial real estate - Owner occupied | Combination - Term Extension and Payment Modification
Financing Receivable
Total Loans modified	$ 209
Residential real estate - Owner occupied
Financing Receivable
Total Loans modified		$ 119
Total Loan Segment Modified to Total Loan Segment	0%	0.10%
Weighted-Average Term Extension (In Months)		39 months
Residential real estate - Owner occupied | Current
Financing Receivable
Total Loans modified		$ 119
Residential real estate - Owner occupied | Term Extension
Financing Receivable
Total Loans modified		119
Multifamily
Financing Receivable
Total Loans modified	$ 1,197	$ 233
Total Loan Segment Modified to Total Loan Segment	0.30%	0.10%
Weighted-Average Term Extension (In Months)	60 months	21 months
Weighted-Average Interest Rate Change	2.75%
Multifamily | 90 Days or Greater Past Due
Financing Receivable
Total Loans modified		$ 233
Multifamily | Total Past Due
Financing Receivable
Total Loans modified		233
Multifamily | Current
Financing Receivable
Total Loans modified	$ 1,197
Multifamily | Term Extension
Financing Receivable
Total Loans modified		233
Multifamily | Combination - Term Extension and Payment Delay
Financing Receivable
Total Loans modified	$ 1,197
HELOC
Financing Receivable
Total Loans modified		$ 166
Total Loan Segment Modified to Total Loan Segment	0%	0.20%
Weighted-Average Term Extension (In Months)		24 months
HELOC | Current
Financing Receivable
Total Loans modified		$ 166
HELOC | Term Extension
Financing Receivable
Total Loans modified		$ 166

Loans and Allowance for Cred_12

Loans and Allowance for Credit Losses on Loans - Related Parties (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Loans to principal officers, directors, and their affiliates
Beginning balance	$ 8,483
New loans, including acquired related party loans	30
Repayments and other reductions	(30)
Change in related party status	$ (8,483)

Other Real Estate Owned (Detail

Other Real Estate Owned (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Activity in the other real estate owned (OREO) portfolio, net of valuation reserve
Balance at beginning of period	$ 5,123	$ 1,561	$ 2,356
Property additions, net of acquisition adjustments and participation	21,083	5,580	87
Less: Proceeds from property disposals, net of participation sold and gains/losses	2,845	1,749	778
Less: Period valuation write-down	1,744	269	104
Balance at end of period	21,617	5,123	1,561
Activity in the valuation allowance
Balance at beginning of period	118	856	1,179
Provision for unrealized losses	1,744	269	104
Reductions taken on sales		(1,007)	(427)
Balance at end of period	1,862	118	856
Expenses related to foreclosed assets, net of lease revenue
Gain on sales, net	(390)	(256)	(163)
Provision for unrealized losses	1,744	269	104
Operating expenses	1,801	434	193
Less: Lease revenue	935	48	4
Net OREO expense	$ 2,220	$ 399	$ 130

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Premises and equipment
Cost	$ 166,634	$ 153,284
Accumulated Depreciation/Amortization	79,323	73,974
Net Book Value	87,311	79,310
Land
Premises and equipment
Cost	30,981	29,741
Net Book Value	30,981	29,741
Buildings
Premises and equipment
Cost	61,428	58,311
Accumulated Depreciation/Amortization	27,413	25,911
Net Book Value	34,015	32,400
Leasehold improvements
Premises and equipment
Cost	10,341	7,785
Accumulated Depreciation/Amortization	2,112	1,574
Net Book Value	8,229	6,211
Furniture and equipment
Premises and equipment
Cost	63,884	57,447
Accumulated Depreciation/Amortization	49,798	46,489
Net Book Value	$ 14,086	$ 10,958

Premises and Equipment - Narrat

Premises and Equipment - Narrative (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) lease item	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Premises and equipment
Leases options to extend	true
Lessee lease liability, Operating	$ 12,465,000	$ 11,578,000
Right of use assets, Operating	$ 7,359,000	7,093,000
Number of lease terminated | lease	1
Amount of terminated lease liability	$ 68,333
Amount of terminated right-of-use asset	68,333
Fees paid	46,500
Loss on termination of lease	$ (46,500)
Number of sale leaseback transaction | item	1
Net gain/(loss) on sale of fixed assets	$ 31,311	623,000	$ 2,017,000
Terms of lease	20 years
Sale leaseback transaction, lease incentives	$ 0
Percentage of incremental borrowing rate	4.61%
Minimum
Premises and equipment
Leases remaining term	6 months
Renewal term of lease	5 years
Maximum
Premises and equipment
Leases remaining term	19 years 4 months 24 days
Renewal term of lease	10 years
Other Assets
Premises and equipment
Fixed Assets Held for Sale	$ 1,400,000	$ 1,000,000

Premises and Equipment - Right-

Premises and Equipment - Right-of-use asset and lease obligations by type of property (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Premises and Equipment
Right-of-Use Asset	$ 7,359	$ 7,093
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets.	Other Assets.
Lease Liability	$ 12,465	$ 11,578
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities	Other Liabilities
Weight Average Lease Term in Years	13 years 8 months 12 days	12 years 6 months
Weight Average Discount Rate	4.72%	4.65%
Land and building leases
Premises and Equipment
Right-of-Use Asset	$ 7,359	$ 7,093
Lease Liability	$ 12,465	$ 11,578
Weight Average Lease Term in Years	13 years 8 months 12 days	12 years 6 months
Weight Average Discount Rate	4.72%	4.65%

Premises and Equipment - Operat

Premises and Equipment - Operating lease costs (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Premises and Equipment
Operating lease cost	$ 1,337,000	$ 988,000	$ 716,000
Short-term lease cost	54,000	64,000	60,000
Total operating lease cost	1,391,000	1,052,000	$ 776,000
Lease transactions with related party	$ 0	$ 0

Premises and Equipment - Maturi

Premises and Equipment - Maturity analysis of operating lease liabilities and reconciliation of the undiscounted cash flows (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Lease payments
Due in one year or less	$ 2,095
Due in one year through two years	1,903
Due in two years through three years	1,847
Due in three years through four years	1,756
Due in four years through five years	1,692
Thereafter	5,824
Total lease payments	15,117
Discount on cash flows	(2,652)
Lease Liability	$ 12,465	$ 11,578

Deposits - Classifications of D

Deposits - Classifications of Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deposits
Noninterest bearing demand	$ 1,704,920	$ 1,834,891
Savings	932,201	971,334
NOW accounts	621,434	565,375
Money market accounts	761,499	671,240
Certificates of deposit of less than $100,000	352,526	266,035
Certificates of deposit of $100,000 through $250,000	270,837	180,289
Certificates of deposit of more than $250,000	125,314	81,582
Total deposits	$ 4,768,731	$ 4,570,746

Deposits - Scheduled maturities

Deposits - Scheduled maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Brokered certificates
Brokered certificates of deposit	$ 29,800	$ 30,700
Deposits held by senior officers and directors, including their related interests	11,000	12,000
Time Deposit Maturities
2025	700,746
2026	27,775
2027	7,645
2028	8,130
2029	4,381
Total	$ 748,677	$ 527,906

Borrowings - Summary (Details)

Borrowings - Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Borrowings
Total borrowings	$ 141,897	$ 516,625
Securities sold under repurchase agreements
Borrowings
Total borrowings	36,657	26,470
Other short-term borrowings
Borrowings
Total borrowings	20,000	405,000
Junior Subordinated Debentures
Borrowings
Total borrowings	25,773	25,773
Subordinated debentures
Borrowings
Total borrowings	$ 59,467	$ 59,382

Borrowings - Additional informa

Borrowings - Additional information (Details) $ in Thousands		1 Months Ended	3 Months Ended		12 Months Ended
	Feb. 24, 2023 USD ($)	Dec. 31, 2016	Jun. 30, 2023 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2024 USD ($) customer	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Borrowings
Threshold percentage of stockholders' equity					10%
Borrowings at FHLBC as percentage of total assets					35%
FHLBC stock					$ 4,500	$ 18,500
Proceeds from term note					30,000
Repayment of term note						9,000	$ 4,000
Outstanding, net of deferred issuance costs					59,500	59,400
Asset Pledged as Collateral with Right | Securities sold under repurchase agreements
Borrowings
Investment securities pledged with financial institutions, dollars					73,600	45,700
Securities sold under repurchase agreements
Borrowings
Investment securities pledged with financial institutions, dollars					$ 36,700	26,500
Number of customers having secured balances exceeding specified percentage of stockholders equity | customer					0
Securities sold under repurchase agreements | Minimum
Borrowings
Maturity					1 day
Securities sold under repurchase agreements | Maximum
Borrowings
Maturity					90 days
Federal Home Loan Bank Advances
Borrowings
Borrowings at FHLBC as percentage of book value of certain mortgage loans					60%
FHLBC advance amount					$ 20,000	405,000
FHLBC stock					4,500	18,500
Principal balance of loans collateralized					1,410,000	$ 1,460,000
Maximum borrowing capacity					942,800,000
Combined collateral value					942,800
Amount available for additional borrowings					$ 922,800
Senior notes
Borrowings
Interest rate (as a percent)		5.75%
Debt Instrument, Term		10 years
Interest rate term		5 years
Debt issuance costs			$ 362
Debt instrument redemption price, percentage			12.85%
Debt redeemed amount			$ 45,000
Term Debt
Borrowings
Repayment of term note	$ 9,000
Face amount	$ 20,000
Subordinated Notes Due 2031
Borrowings
Interest rate (as a percent)				3.50%
Face amount				$ 60,000
Subordinated Notes Due 2031 | Three Months Secured Overnight Financing Rate
Borrowings
Basis points added to reference rate (as a percent)				2.73%

Borrowings - Maturities and Wei

Borrowings - Maturities and Weighted Average Rates (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Scheduled maturities and weighted average rates of borrowings
Year one		$ 431,470
Year two	$ 56,657
Thereafter	85,240	85,155
Total borrowings	$ 141,897	$ 516,625
Weighted Average Rate
Year one (as a percent)		4.98%
Year two (as a percent)	2.47%
Thereafter (as a percent)	3.89%	4.10%
Total borrowings (as a percent)	3.32%	4.84%

Junior Subordinated Debentures

Junior Subordinated Debentures - Issuance (Details) - USD ($) $ in Thousands		1 Months Ended	6 Months Ended	7 Months Ended	12 Months Ended
	Jun. 15, 2017	Apr. 30, 2007	Jun. 15, 2017	Dec. 31, 2017	Dec. 31, 2024	Dec. 31, 2023
Junior subordinated debentures
Junior subordinated debentures					$ 25,773	$ 25,773
Old Second Capital Trust II
Junior subordinated debentures
Proceeds from sale of cumulative trust preferred securities		$ 25,000
Maturity Period					30 years
Cash distribution fixed rate of trust preferred securities (as a percent)			6.77%
Basis points added to cash distribution floating rate base (as a percent)	1.50%			1.50%
Cash distribution, floating rate base	three-month				three-month SOFR
Amortization period					30 years
Old Second Capital Trust II | Debt Instrument, Redemption, Period One
Junior subordinated debentures
Interest rate (as a percent)					4.37%	4.25%
Junior Subordinated Debentures
Junior subordinated debentures
Junior Subordinated Debentures issuance cost					$ 1,000	$ 1,000
Junior Subordinated Debentures | Old Second Capital Trust II
Junior subordinated debentures
Junior subordinated debentures					$ 25,800

Income Taxes - Components (Deta

Income Taxes - Components (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Components of income tax expense (benefit)
Current federal	$ 22,011	$ 20,724	$ 13,241
Current state	7,048	10,098	6,209
Deferred federal	(1,419)	1,964	3,338
Deferred state	52	(107)	1,356
Total tax at effective tax rate	27,692	32,679	$ 24,144
Deferred tax assets
Accrued Bonus	2,601	2,500
Allowance for credit losses	12,241	13,077
Deferred compensation	2,100	1,622
Stock based compensation	1,920	1,768
Business combination adjustments		270
Lease liability	3,315	3,201
Other assets	2,357	1,602
Total deferred tax assets	24,534	24,040
Deferred tax liabilities
Accumulated depreciation on premises and equipment	(5,844)	(5,454)
Goodwill amortization/impairment	(604)	(465)
Mortgage servicing rights	(2,728)	(2,842)
Amortization of core deposit intangible	(2,248)	(2,987)
Right of use asset	(1,972)	(1,969)
Acquired Securities	(1,997)	(2,376)
Other liabilities	(1,090)	(1,263)
Total deferred tax liabilities	(16,483)	(17,356)
Net deferred tax asset before adjustments related to other comprehensive income	8,051	6,684
Tax effect of adjustments related to other comprehensive income	18,568	24,393
Net deferred tax asset	26,619	$ 31,077
Federal
Deferred tax liabilities
Net operating loss carryforward, which may be carried forward indefinitely	0
State and Local Jurisdiction
Deferred tax liabilities
Net operating loss carryforward	$ 0

Income Taxes - Components of De

Income Taxes - Components of Deferred Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Difference between effective tax rates and federal statutory rates applied to financial statement income
Tax at statutory federal income tax rate	$ 23,721	$ 26,126	$ 19,225
Nontaxable interest income, net of disallowed interest deduction	(820)	(947)	(1,097)
BOLI Income	(950)	(445)	(151)
State income taxes, net of federal benefit	5,775	7,911	6,091
Stock based compensation	(139)	(132)	(43)
Other, net	105	166	119
Total tax at effective tax rate	$ 27,692	$ 32,679	$ 24,144

Equity Compensation Plans (Deta

Equity Compensation Plans (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	May 31, 2021	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	May 31, 2019
Equity Compensation Plans
Total compensation cost		$ 4.1	$ 3.6	$ 3
Vesting percentage , fully vest , performance measure		50%
Minimum
Equity Compensation Plans
Vesting percentage , fully vest , performance measure		50%
Maximum
Equity Compensation Plans
Vesting percentage , pro rata , performance measure		50%
2019 Plan
Equity Compensation Plans
Number of shares authorized	1,800,000				600,000
Increase in number of shares authorized	1,200,000
Number of shares available for issuance		745,588
Restricted Stock and Restricted Stock Units | 2019 Plan
Equity Compensation Plans
Vesting period		3 years

Equity Compensation Plans - Res

Equity Compensation Plans - Restricted Stock and RSUs (Details) - Restricted Stock and Restricted Stock Units - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Changes in unvested awards
Nonvested at the beginning of the period (in shares)	709,237
Granted (in shares)	339,235	240,149
Vested (in shares)	(248,386)
Forfeited (in shares)	(21,808)
Nonvested at the end of the period (in shares)	778,278	709,237
Weighted Average Grant Date Fair Value
Nonvested at the beginning of the period (in dollars per share)	$ 14.26
Granted (in dollars per share)	13.44
Vested (in dollars per share)	11.54
Forfeited (in dollars per share)	15.10
Nonvested at the end of the period (in dollars per share)	$ 14.75	$ 14.26
Additional information
Total unrecognized compensation cost of restricted awards	$ 4.2
Expected weighted-average period for recognition of unrecognized compensation	1 year 8 months 23 days

Earnings Per Share - Reconcilia

Earnings Per Share - Reconciliation (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Basic earnings per share:
Weighted-average common shares outstanding	44,828,290	44,663,722	44,526,655
Net income	$ 85,264	$ 91,729	$ 67,405
Basic earnings per share	$ 1.90	$ 2.05	$ 1.51
Diluted earnings per share:
Weighted-average common shares outstanding	44,828,290	44,663,722	44,526,655
Diluted average common shares outstanding	45,639,351	45,395,010	45,213,088
Diluted earnings per share	$ 1.87	$ 2.02	$ 1.49
Restricted Stock and Restricted Stock Units
Diluted earnings per share:
Dilutive effect of share-based payment awards (in shares)	811,061	731,288	686,433

Commitments - Summary of Financ

Commitments - Summary of Financial Instrument Commitments (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Fixed Letters of Credit
Financial instrument commitments
Financial instrument commitments	$ 740	$ 735
Fixed Letters of Credit | Commitments to Extend Credit to Borrowers [Member]
Financial instrument commitments
Financial instrument commitments	740	735
Fixed Letters of Credit | Commitments to Extend Credit to Borrowers [Member] | Financial Standby Letter of Credit
Financial instrument commitments
Financial instrument commitments	188	173
Fixed Letters of Credit | Commitments to Extend Credit to Borrowers [Member] | Performance Guarantee
Financial instrument commitments
Financial instrument commitments	552	562
Fixed Letters of Credit | Unused lines of Credit
Financial instrument commitments
Loan commitments	163,282	140,305
Variable Letters of Credit
Financial instrument commitments
Financial instrument commitments	26,596	30,377
Variable Letters of Credit | Commitments to Extend Credit to Borrowers [Member]
Financial instrument commitments
Financial instrument commitments	26,529	30,310
Variable Letters of Credit | Commitments to Extend Credit to Borrowers [Member] | Financial Standby Letter of Credit
Financial instrument commitments
Financial instrument commitments	16,322	16,621
Variable Letters of Credit | Commitments to Extend Credit to Borrowers [Member] | Performance Guarantee
Financial instrument commitments
Financial instrument commitments	10,207	13,689
Variable Letters of Credit | Commitments to Extend Credit Nonborrowers [Member] | Performance Guarantee
Financial instrument commitments
Financial instrument commitments	67	67
Variable Letters of Credit | Unused lines of Credit
Financial instrument commitments
Loan commitments	616,533	694,960
Letter of Credit
Financial instrument commitments
Financial instrument commitments	27,336	31,112
Letter of Credit | Commitments to Extend Credit to Borrowers [Member]
Financial instrument commitments
Financial instrument commitments	27,269	31,045
Letter of Credit | Commitments to Extend Credit to Borrowers [Member] | Financial Standby Letter of Credit
Financial instrument commitments
Financial instrument commitments	16,510	16,794
Letter of Credit | Commitments to Extend Credit to Borrowers [Member] | Performance Guarantee
Financial instrument commitments
Financial instrument commitments	10,759	14,251
Letter of Credit | Commitments to Extend Credit Nonborrowers [Member] | Performance Guarantee
Financial instrument commitments
Financial instrument commitments	67	67
Letter of Credit | Unused lines of Credit
Financial instrument commitments
Loan commitments	$ 779,815	$ 835,265

Commitments - Lease Commitments

Commitments - Lease Commitments and Legal Proceedings (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Estimated aggregate minimum annual rental commitments
Aggregate future minimum rental income receivable under noncancelable leases	$ 420,000
Total facility net operating lease revenue/expense	1,200,000	$ 844,000	$ 396,000
Total ATM lease expense	2,400,000	$ 2,100,000	$ 1,900,000
2025	2,149,000
2026	1,945,000
2027	1,877,000
2028	1,758,000
2029	1,692,000
2030 and thereafter	$ 5,824,000

Regulatory & Capital Matters (D

Regulatory & Capital Matters (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Regulatory & Capital Matters
Tier 1 capital leverage ratio (as a percent)				0.1130	0.1006
Risk-based capital ratio (as a percent)				0.1554	0.1406
Phase out of impact of allowance for credit loss					$ 3,800,000
Percentage of increase in the allowance for credit losses	25%	25%	25%
Deferment of impact on retained earnings				$ 951,000
Subsidiaries
Regulatory & Capital Matters
Tier 1 capital leverage ratio (as a percent)				0.1090	0.1041
Risk-based capital ratio (as a percent)				0.1382	0.1324
Minimum | Subsidiaries
Regulatory & Capital Matters
Tier 1 capital leverage ratio (as a percent)				0.08
Risk-based capital ratio (as a percent)				0.12

Regulatory & Capital Matters -

Regulatory & Capital Matters - Capital Levels and Industry Defined Regulatory Minimums (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Common equity tier 1 capital to risk weighted assets
Actual	$ 607,294	$ 547,721
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	$ 331,596	$ 337,207
Common equity tier 1 capital to risk weighted assets, Ratio
Actual (as a percent)	0.1282%	0.1137%
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.07%	0.07%
Total capital to risk weighted assets, Amount
Actual at period end	$ 736,492	$ 677,076
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	$ 497,630	$ 505,640
Total capital to risk weighted assets, Ratio
Risk-based capital ratio (as a percent)	0.1554	0.1406
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.1050	0.1050
Tier 1 capital to risk weighted assets, Amount
Actual	$ 632,294	$ 572,721
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	$ 402,886	$ 409,430
Tier 1 capital to risk weighted assets, Ratio
Actual (as a percent)	0.1334	0.1189
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.0850	0.0850
Tier 1 capital to average assets, Amount
Actual	$ 632,294	$ 572,721
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	$ 223,821	$ 227,722
Tier 1 capital to average assets, Ratio
Tier 1 capital leverage ratio (as a percent)	0.1130	0.1006
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.0400	0.0400
Subsidiaries
Common equity tier 1 capital to risk weighted assets
Actual	$ 610,285	$ 592,413
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	331,419	336,598
Minimum Required to Be Well Capitalized	$ 307,747	$ 312,556
Common equity tier 1 capital to risk weighted assets, Ratio
Actual (as a percent)	0.1289%	0.1232%
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.07%	0.07%
Minimum Required to Be Well Capitalized (as a percent)	0.065%	0.065%
Total capital to risk weighted assets, Amount
Actual at period end	$ 654,484	$ 636,768
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	497,256	504,990
Minimum Required to Be Well Capitalized	$ 473,577	$ 480,943
Total capital to risk weighted assets, Ratio
Risk-based capital ratio (as a percent)	0.1382	0.1324
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.1050	0.1050
Minimum Required to Be Well Capitalized (as a percent)	0.1000	0.1000
Tier 1 capital to risk weighted assets, Amount
Actual	$ 610,285	$ 592,413
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	402,438	408,727
Minimum Required to Be Well Capitalized	$ 378,765	$ 384,684
Tier 1 capital to risk weighted assets, Ratio
Actual (as a percent)	0.1289	0.1232
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.0850	0.0850
Minimum Required to Be Well Capitalized (as a percent)	0.0800	0.0800
Tier 1 capital to average assets, Amount
Actual	$ 610,285	$ 592,413
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	223,958	227,632
Minimum Required to Be Well Capitalized	$ 279,947	$ 284,540
Tier 1 capital to average assets, Ratio
Tier 1 capital leverage ratio (as a percent)	0.1090	0.1041
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.0400	0.0400
Minimum Required to Be Well Capitalized (as a percent)	0.0500	0.0500

Regulatory & Capital Matters _2

Regulatory & Capital Matters - Dividend Restrictions and Deferrals (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Dividend Restrictions and Deferrals
Number of previous years retained profit considered for dividend payment	2 years
Payments of dividends	$ 107.8
Minimum capital requirements, minimum percentage required	2.50%

Mortgage Banking Derivatives (D

Mortgage Banking Derivatives (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Mortgage Banking Derivatives
Amount of loans sold to investors	$ 58,000
Proceeds from sale of loan to investors	58,818	$ 52,186	$ 81,776
Gain on sale of loan	1,805	1,477	$ 2,022
Federal National Mortgage Association [Member]
Mortgage Banking Derivatives
Amount of loans sold to investors	$ 45,000
Federal National Mortgage Association [Member] | Customer Concentration Risk | Loan receivables
Mortgage Banking Derivatives
Percentage of concentration risk	77.90%
Federal Home Loan Mortgage Corporation [Member]
Mortgage Banking Derivatives
Amount of loans sold to investors	$ 7,500
Federal Home Loan Mortgage Corporation [Member] | Customer Concentration Risk | Loan receivables
Mortgage Banking Derivatives
Percentage of concentration risk	13%
Not Designated as Hedging Instrument | Forward Contracts [Member]
Mortgage Banking Derivatives
Notional or Contractual Amount	$ 5,500	6,000
Fair value	10	(46)
Not Designated as Hedging Instrument | Interest Rate Lock Commitments [Member]
Mortgage Banking Derivatives
Notional or Contractual Amount	3,167	1,312
Fair value	$ 45	$ 36

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value transfer assets into level 3	$ 0
Asset-backed Securities
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value transfer assets out of level 3		$ 14,885
Collateralized loan obligations.
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value transfer assets out of level 3		$ 6,764

Fair Value Measurements - Recur

Fair Value Measurements - Recurring (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Assets:
Securities available-for-sale	$ 1,161,701	$ 1,192,829
Mortgage servicing rights	10,374	10,344
U.S. Treasury
Assets:
Securities available-for-sale	194,143	169,574
U.S. government agencies
Assets:
Securities available-for-sale	37,814	56,959
States and political subdivisions
Assets:
Securities available-for-sale	215,456	227,065
Collateralized mortgage obligations
Assets:
Securities available-for-sale	368,616	392,544
Asset-backed Securities
Assets:
Securities available-for-sale	62,303	68,436
Collateralized loan obligations.
Assets:
Securities available-for-sale	183,092	171,881
Fair Value, Inputs, Level 1
Assets:
Securities available-for-sale	194,143	169,574
Fair Value, Inputs, Level 2
Assets:
Securities available-for-sale	952,408	1,007,926
Loans held-for-sale	1,556	1,322
Interest rate derivatives	5,498	5,302
Liabilities:
Mortgage banking derivatives	3,187	8,324
Fair Value, Inputs, Level 3
Assets:
Securities available-for-sale	15,150	15,329
Fair Value, Measurements, Recurring
Assets:
Loans held-for-sale	1,556	1,322
Mortgage servicing rights	10,374	10,344
Total financial assets	1,179,212	1,209,886
Liabilities:
Mortgage banking derivatives		10
Total	3,192	8,334
Fair Value, Measurements, Recurring | Interest rate swap agreements, including risk participation agreement
Assets:
Interest rate derivatives		5,391
Liabilities:
Mortgage banking derivatives	3,192	8,324
Fair Value, Measurements, Recurring | Forward Contracts
Assets:
Interest rate derivatives	55
Fair Value, Measurements, Recurring | Interest Rate Products
Assets:
Interest rate derivatives	5,526
Fair Value, Measurements, Recurring | U.S. Treasury
Assets:
Securities available-for-sale	194,143	169,574
Fair Value, Measurements, Recurring | U.S. government agencies
Assets:
Securities available-for-sale	37,814	56,959
Fair Value, Measurements, Recurring | Mortgage Backed Securities, Issued by US Government Agencies
Assets:
Securities available-for-sale	100,277	106,370
Fair Value, Measurements, Recurring | States and political subdivisions
Assets:
Securities available-for-sale	215,456	227,065
Fair Value, Measurements, Recurring | Collateralized mortgage obligations
Assets:
Securities available-for-sale	368,616	392,544
Fair Value, Measurements, Recurring | Asset-backed Securities
Assets:
Securities available-for-sale	62,303	68,436
Fair Value, Measurements, Recurring | Collateralized loan obligations.
Assets:
Securities available-for-sale	183,092	171,881
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1
Assets:
Total financial assets	194,143	169,574
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | U.S. Treasury
Assets:
Securities available-for-sale	194,143	169,574
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Assets:
Loans held-for-sale	1,556	1,322
Total financial assets	959,545	1,014,639
Liabilities:
Mortgage banking derivatives		10
Total	3,192	8,334
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Interest rate swap agreements, including risk participation agreement
Assets:
Interest rate derivatives		5,391
Liabilities:
Mortgage banking derivatives	3,192	8,324
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Forward Contracts
Assets:
Interest rate derivatives	55
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Interest Rate Products
Assets:
Interest rate derivatives	5,526
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | U.S. government agencies
Assets:
Securities available-for-sale	37,814	56,959
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Mortgage Backed Securities, Issued by US Government Agencies
Assets:
Securities available-for-sale	100,277	106,370
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | States and political subdivisions
Assets:
Securities available-for-sale	203,560	214,006
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Collateralized mortgage obligations
Assets:
Securities available-for-sale	368,616	392,544
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Asset-backed Securities
Assets:
Securities available-for-sale	59,049	66,166
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Collateralized loan obligations.
Assets:
Securities available-for-sale	183,092	171,881
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3
Assets:
Mortgage servicing rights	10,374	10,344
Total financial assets	25,524	25,673
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | States and political subdivisions
Assets:
Securities available-for-sale	11,896	13,059
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Asset-backed Securities
Assets:
Securities available-for-sale	$ 3,254	$ 2,270

Fair Value Measurements - Chang

Fair Value Measurements - Changes in Level 3 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Changes in Level 3
Transfers into Level 3	$ 0
Asset-backed Securities
Changes in Level 3
Beginning balance	2,270	$ 16,740
Transfers out of Level 3		(14,885)
Total gains or losses
Included in earnings		(11)
Included in other comprehensive income	(69)	239
Purchases, issuances, sales, and settlements
Purchases	1,209	782
Settlements	(156)	(595)
Ending balance	3,254	2,270
Collateralized loan obligations.
Changes in Level 3
Beginning balance		6,770
Transfers out of Level 3		(6,764)
Total gains or losses
Included in other comprehensive income		(6)
States and political subdivisions
Changes in Level 3
Beginning balance	13,059	12,501
Total gains or losses
Included in earnings	(125)	(135)
Included in other comprehensive income	(444)	998
Purchases, issuances, sales, and settlements
Settlements	(594)	(305)
Ending balance	11,896	13,059
Mortgage Servicing rights
Changes in Level 3
Beginning balance	10,344	11,189
Total gains or losses
Included in earnings	(160)	(924)
Purchases, issuances, sales, and settlements
Issuances	753	580
Settlements	(563)	(501)
Ending balance	$ 10,374	$ 10,344

Fair Value Measurements - Quant

Fair Value Measurements - Quantitative and Qualitative Information (Details) $ in Thousands	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Quantitative information about Level 3 fair value measurements
Mortgage servicing rights, fair value	$ 10,374	$ 10,344
Securities available-for-sale, at fair value	1,161,701	1,192,829
Fair Value, Inputs, Level 3
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	15,150	15,329
Asset-backed Securities
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	62,303	68,436
States and political subdivisions
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	215,456	227,065
Collateralized mortgage obligations
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	368,616	392,544
Fair Value, Measurements, Recurring
Quantitative information about Level 3 fair value measurements
Mortgage servicing rights, fair value	10,374	10,344
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3
Quantitative information about Level 3 fair value measurements
Mortgage servicing rights, fair value	10,374	10,344
Fair Value, Measurements, Recurring | Asset-backed Securities
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	62,303	68,436
Fair Value, Measurements, Recurring | Asset-backed Securities | Fair Value, Inputs, Level 3
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	3,254	2,270
Fair Value, Measurements, Recurring | States and political subdivisions
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	215,456	227,065
Fair Value, Measurements, Recurring | States and political subdivisions | Fair Value, Inputs, Level 3
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	11,896	13,059
Fair Value, Measurements, Recurring | Collateralized mortgage obligations
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	368,616	392,544
Fair Value, Measurements, Recurring | Measurement Input, Discount Rate | Asset-backed Securities | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	$ 3,254	$ 2,270
Fair Value, Measurements, Recurring | Measurement Input, Discount Rate | Asset-backed Securities | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Minimum
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.049	0.056
Fair Value, Measurements, Recurring | Measurement Input, Discount Rate | Asset-backed Securities | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Maximum
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.049	0.056
Fair Value, Measurements, Recurring | Measurement Input, Discount Rate | Asset-backed Securities | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Weighted Average
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.049	0.056
Fair Value, Measurements, Recurring | Measurement Input, Discount Rate | Mortgage Servicing Rights | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3
Quantitative information about Level 3 fair value measurements
Mortgage servicing rights, fair value	$ 10,374	$ 10,344
Fair Value, Measurements, Recurring | Measurement Input, Discount Rate | Mortgage Servicing Rights | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Minimum
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input	0.090	0.090
Fair Value, Measurements, Recurring | Measurement Input, Discount Rate | Mortgage Servicing Rights | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Maximum
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input	0.110	0.110
Fair Value, Measurements, Recurring | Measurement Input, Discount Rate | Mortgage Servicing Rights | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Weighted Average
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input	0.090	0.090
Fair Value, Measurements, Recurring | Measurement Input, Discount Rate | States and political subdivisions | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	$ 11,896	$ 13,059
Fair Value, Measurements, Recurring | Measurement Input, Discount Rate | States and political subdivisions | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Minimum
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.053	0.032
Fair Value, Measurements, Recurring | Measurement Input, Discount Rate | States and political subdivisions | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Maximum
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.054	0.054
Fair Value, Measurements, Recurring | Measurement Input, Discount Rate | States and political subdivisions | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Weighted Average
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.054	0.047
Fair Value, Measurements, Recurring | Measurement Input, Constant Prepayment Rate | Mortgage Servicing Rights | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Minimum
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input	0	0.051
Fair Value, Measurements, Recurring | Measurement Input, Constant Prepayment Rate | Mortgage Servicing Rights | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Maximum
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input	0.315	0.330
Fair Value, Measurements, Recurring | Measurement Input, Constant Prepayment Rate | Mortgage Servicing Rights | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Weighted Average
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input	0.069	0.066
Fair Value, Measurements, Recurring | Measurement Input, Liquidity Premium | States and political subdivisions | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Minimum
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.005	0.005
Fair Value, Measurements, Recurring | Measurement Input, Liquidity Premium | States and political subdivisions | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Maximum
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.005	0.005
Fair Value, Measurements, Recurring | Measurement Input, Liquidity Premium | States and political subdivisions | Discounted Cash Flow Valuation Technique | Fair Value, Inputs, Level 3 | Weighted Average
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.005	0.005

Fair Value Measurements - Nonre

Fair Value Measurements - Nonrecurring (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets and liabilities measured at fair value
Valuation allowance	$ 26,200,000
Carrying value of other real estate owned	21,617,000	$ 5,123,000	$ 1,561,000	$ 2,356,000
OREO Valuation allowance	1,862,000	118,000	$ 856,000	$ 1,179,000
Impaired Loans | Reported Value Measurement
Assets and liabilities measured at fair value
Increase (decrease) of specific allocations within the provision for loan losses		6,500,000
Fair Value, Measurements, Nonrecurring
Assets and liabilities measured at fair value
Total	40,675,000	71,303,000
Fair Value, Measurements, Nonrecurring | Impaired Loans
Assets and liabilities measured at fair value
Total	19,058,000	66,180,000
Valuation allowance	7,200,000	11,100,000
Increase (decrease) of specific allocations within the provision for loan losses	3,900,000
Fair Value, Measurements, Nonrecurring | Impaired Loans | Reported Value Measurement
Assets and liabilities measured at fair value
Total	26,200,000	77,300,000
Fair Value, Measurements, Nonrecurring | Other Real Estate Owned
Assets and liabilities measured at fair value
Total	21,617,000	5,123,000
Carrying value of other real estate owned	21,600,000	5,100,000
Outstanding balance	23,500,000	5,200,000
OREO Valuation allowance	1,900,000	118,000
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3
Assets and liabilities measured at fair value
Total	40,675,000	71,303,000
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3 | Impaired Loans
Assets and liabilities measured at fair value
Total	19,058,000	66,180,000
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3 | Other Real Estate Owned
Assets and liabilities measured at fair value
Total	$ 21,617,000	$ 5,123,000

Fair Values of Financial Inst_3

Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Financial assets:
Cash and due from banks	$ 52,175	$ 55,534
Interest earning deposits with financial institutions	47,154	44,611
Securities available-for-sale	1,161,701	1,192,829
FHLBC and FRBC Stock	19,441	33,355
Mortgage servicing rights	10,374	10,344
Financial liabilities:
Noninterest bearing deposits	1,704,920	1,834,891
Other short-term borrowings	20,000	405,000
Junior subordinated debentures	$ 25,773	$ 25,773
Derivative Asset Statement Of Financial Position Extensible Enumeration Not Disclosed Flag	true
Derivative Liability Statement Of Financial Position Extensible Enumeration Not Disclosed Flag	true	true
Reported Value Measurement
Financial assets:
Cash and due from banks	$ 52,175	$ 55,534
Interest earning deposits with financial institutions	47,154	44,611
Securities available-for-sale	1,161,701	1,192,829
FHLBC and FRBC Stock	19,441	33,355
Loans held for sale	1,556	1,322
Net loans	3,937,717	3,998,689
Interest rate swap and rate cap agreements	5,498	5,302
Interest rate lock commitments and forward contracts	55
Interest receivable on securities and loans	24,598	27,159
Financial liabilities:
Noninterest bearing deposits	1,704,920	1,834,891
Interest bearing deposits	3,063,811	2,735,855
Securities sold under repurchase agreements	36,657	26,470
Other short-term borrowings	20,000	405,000
Junior subordinated debentures	25,773	25,773
Subordinated debentures	59,467	59,382
Interest rate swap and rate cap agreements	3,187	8,324
Interest rate lock commitments and forward contracts		10
Interest payable on deposits and borrowings	3,871	2,962
Estimate of Fair Value Measurement
Financial assets:
Cash and due from banks	52,175	55,534
Interest earning deposits with financial institutions	47,154	44,611
Securities available-for-sale	1,161,701	1,192,829
FHLBC and FRBC Stock	19,441	33,355
Loans held for sale	1,556	1,322
Net loans	3,818,303	3,876,381
Interest rate swap and rate cap agreements	5,498	5,302
Interest rate lock commitments and forward contracts	55
Interest receivable on securities and loans	24,598	27,159
Financial liabilities:
Noninterest bearing deposits	1,704,920	1,834,891
Interest bearing deposits	3,056,180	2,726,223
Securities sold under repurchase agreements	36,657	26,470
Other short-term borrowings	20,000	405,000
Junior subordinated debentures	21,444	20,361
Subordinated debentures	54,533	47,982
Interest rate swap and rate cap agreements	3,187	8,324
Interest rate lock commitments and forward contracts		10
Interest payable on deposits and borrowings	3,871	2,962
Fair Value, Inputs, Level 1
Financial assets:
Cash and due from banks	52,175	55,534
Interest earning deposits with financial institutions	47,154	44,611
Securities available-for-sale	194,143	169,574
Financial liabilities:
Noninterest bearing deposits	1,704,920	1,834,891
Fair Value, Inputs, Level 2
Financial assets:
Securities available-for-sale	952,408	1,007,926
FHLBC and FRBC Stock	19,441	33,355
Loans held for sale	1,556	1,322
Interest rate swap and rate cap agreements	5,498	5,302
Interest rate lock commitments and forward contracts	55
Interest receivable on securities and loans	24,598	27,159
Financial liabilities:
Interest bearing deposits	3,056,180	2,726,223
Securities sold under repurchase agreements	36,657	26,470
Other short-term borrowings	20,000	405,000
Junior subordinated debentures	21,444	20,361
Subordinated debentures	54,533	47,982
Interest rate swap and rate cap agreements	3,187	8,324
Interest rate lock commitments and forward contracts		10
Interest payable on deposits and borrowings	3,871	2,962
Fair Value, Inputs, Level 3
Financial assets:
Securities available-for-sale	15,150	15,329
Net loans	$ 3,818,303	$ 3,876,381

Financial Instruments with Of_3

Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions - Fair Value of Derivatives (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) item	Dec. 31, 2024 USD ($) item	Dec. 31, 2023 USD ($) item
Two financial institutions
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Cash collateral pledged with financial institutions, dollars	$ 2,300,000	$ 2,300,000	$ 7,300,000
Number of financial institutions in which cash collateral pledged | item		1	2
Interest Rate Swap
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Investment securities pledged with financial institutions, dollars	$ 0	$ 0	$ 0
Number of financial institutions in which cash collateral pledged	5,200,000	2	1
Interest Rate Swap | Two financial institutions
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Cash collateral pledged with financial institutions, dollars			$ 4,100,000
Designated as Hedging Instrument
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative assets designated as hedging instruments, fair value	$ 3,823,000	$ 3,823,000	2,576,000
Derivative liabilities designated as hedging instruments, fair value	$ 1,512,000	$ 1,512,000	$ 5,598,000
Designated as Hedging Instrument | Interest Rate Products | OSBC Affiliates
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative, number of transactions | item	5	5	5
Notional amount	$ 325,774,000	$ 325,774,000	$ 325,774,000
Derivative assets designated as hedging instruments, fair value	3,823,000	3,823,000	2,576,000
Derivative liabilities designated as hedging instruments, fair value	1,512,000	1,512,000	5,598,000
Designated as Hedging Instrument | Interest Rate Swap | Cash flow hedges of certain variable rate commercial and commercial real estate loan pools
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Notional amount	300,000,000	300,000,000	300,000,000
Designated as Hedging Instrument | Interest Rate Swap | Cash flow hedge of junior subordinated debentures and was executed to pay fixed and receive variable rate cash flows
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Notional amount	25,800,000	25,800,000	25,800,000
Not Designated as Hedging Instrument
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative assets designated as hedging instruments, fair value	1,758,000	1,758,000	2,805,000
Derivative liabilities designated as hedging instruments, fair value	$ 1,680,000	$ 1,680,000	$ 2,726,000
Not Designated as Hedging Instrument | Interest Rate Products | Commercial Loan Customers
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative, number of transactions | item	13	13	17
Notional amount	$ 154,137,000	$ 154,137,000	$ 104,777,000
Derivative assets designated as hedging instruments, fair value	1,675,000	1,675,000	2,726,000
Derivative liabilities designated as hedging instruments, fair value	1,675,000	1,675,000	2,726,000
Not Designated as Hedging Instrument | Interest Rate Swap
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Notional amount	121,200,000	121,200,000	104,800,000
Not Designated as Hedging Instrument | Commitments.
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Notional amount	$ 8,700,000	$ 8,700,000	$ 8,400,000
Not Designated as Hedging Instrument | Interest Rate Lock Commitments and Forward Contracts.
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative, number of transactions | item	30	30	24
Notional amount	$ 8,667,000	$ 8,667,000	$ 8,375,000
Derivative assets designated as hedging instruments, fair value	$ 55,000	$ 55,000	$ 10,000
Not Designated as Hedging Instrument | Other Contracts
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative, number of transactions | item	5	5	4
Notional amount	$ 58,259,000	$ 58,259,000	$ 44,790,000
Derivative assets designated as hedging instruments, fair value	28,000	28,000	89,000
Derivative liabilities designated as hedging instruments, fair value	5,000	5,000
Not Designated as Hedging Instrument | Forward Contracts
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Notional amount	5,500,000	5,500,000	$ 6,000,000
Interest Income
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Amount to be reclassified as an decrease to interest expense during the next twelve months	404,000	404,000
Interest Expense
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Amount to be reclassified as an decrease to interest expense during the next twelve months	$ 1,500,000	$ 1,500,000

Financial Instruments with Of_4

Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions - Effect of Fair Value (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Amount of gain reclassified from AOCI to interest income	$ 1,700,000	$ (2,200,000)	$ (4,200,000)
Amount of Gain or (Loss) Recognized in Income on Derivative	$ (6,000,000)	$ (5,600,000)	$ (373,000)

Preferred Stock (Details)

Preferred Stock (Details) - shares	Dec. 31, 2024	Dec. 31, 2023
Preferred Stock.
Preferred stock, Shares authorized	300,000	300,000

Parent Company Condensed Fina_3

Parent Company Condensed Financial Information - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets
Other assets	$ 55,670	$ 63,592
Total assets	5,649,377	5,722,799
Liabilities and Stockholders' Equity
Junior subordinated debentures	25,773	25,773
Subordinated debt	59,467	59,382
Other liabilities	67,715	58,147
Stockholders' equity	671,034	577,281	$ 461,141	$ 502,027
Total liabilities and stockholders' equity	5,649,377	5,722,799
Parent Company
Assets
Noninterest bearing deposit with bank subsidiary	78,007	36,686
Investment in subsidiaries	671,894	620,663
Other assets	7,457	6,183
Total assets	757,358	663,532
Liabilities and Stockholders' Equity
Junior subordinated debentures	25,773	25,773
Subordinated debt	59,467	59,382
Other liabilities	1,084	1,096
Stockholders' equity	671,034	577,281
Total liabilities and stockholders' equity	$ 757,358	$ 663,532

Parent Company Condensed Fina_4

Parent Company Condensed Financial Information - Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Expenses
Junior subordinated debentures	$ 1,127	$ 1,095	$ 1,136
Subordinated debentures	2,185	2,185	2,185
Senior notes		2,408	2,682
Income before income taxes and equity in undistributed net income of subsidiaries	112,956	124,408	91,549
Income tax benefit	27,692	32,679	24,144
Net income	85,264	91,729	67,405
Parent Company
Operating Income
Cash dividends received from subsidiaries	55,000	65,000	40,000
Other income	59	67	29
Total operating income	55,059	65,067	40,029
Operating Expenses
Junior subordinated debentures	1,127	1,095	1,136
Subordinated debentures	2,185	2,185	2,185
Senior notes		2,408	2,682
Notes payable		87	385
Other expenses	6,209	5,947	5,086
Total operating expense	9,521	11,722	11,474
Income before income taxes and equity in undistributed net income of subsidiaries	45,538	53,345	28,555
Income tax benefit	(2,644)	(3,309)	(3,216)
Income before equity in undistributed net income of subsidiaries	48,182	56,654	31,771
Equity in undistributed net income of subsidiaries	37,082	35,075	35,634
Net income	$ 85,264	$ 91,729	$ 67,405

Parent Company Condensed Fina_5

Parent Company Condensed Financial Information - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash Flows from Operating Activities
Net Income (Loss)	$ 85,264	$ 91,729	$ 67,405
Adjustments to reconcile net income to net cash from operating activities:
Change in taxes payable	5,991	(4,872)	12,048
Stock based compensation	3,914	3,603	2,960
Net cash provided by operating activities	131,533	116,401	97,344
Cash Flows from Investing Activities
Cash received from (paid for) acquisition, net	237,441		(146)
Net cash provided by (used in) investing activities	322,701	161,555	(432,778)
Cash Flows from Financing Activities
Dividends paid on common stock	(9,413)	(8,946)	(8,877)
Purchases of treasury stock	(1,048)	(605)	(455)
Repayment of term note			(6,056)
Repayment of senior notes		(45,000)
Net cash used in financing activities	(455,050)	(292,988)	(301,496)
Net change in cash and cash equivalents	(816)	(15,032)	(636,930)
Cash and cash equivalents at beginning of period	100,145	115,177	752,107
Cash and cash equivalents at end of period	99,329	100,145	115,177
Parent Company
Cash Flows from Operating Activities
Net Income (Loss)	85,264	91,729	67,405
Adjustments to reconcile net income to net cash from operating activities:
Equity in undistributed net income of subsidiaries	(37,082)	(35,075)	(35,634)
Provision for deferred tax (benefit) expense	(152)	(513)	91
Change in taxes payable	(250)	794	(4,694)
Change in other assets	12	(43)	12
Stock based compensation	3,914	3,603	2,960
Other, net	76	575	(2,753)
Net cash provided by operating activities	51,782	61,070	27,387
Cash Flows from Financing Activities
Dividend paid on common stock	(9,413)	(8,946)	(8,877)
Purchases of treasury stock	(1,048)	(605)	(455)
Repayment of term note		(9,000)	(4,000)
Repayment of senior notes		(45,000)
Net cash used in financing activities	(10,461)	(63,551)	(13,332)
Net change in cash and cash equivalents	41,321	(2,481)	14,055
Cash and cash equivalents at beginning of period	36,686	39,167	25,112
Cash and cash equivalents at end of period	$ 78,007	$ 36,686	$ 39,167

Employee Benefit Plans (Details

Employee Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended			36 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2024
Employee Benefit Plans
Expense relating to the 401(k) plan	$ 2.3	$ 2.2	$ 2
Company obligations under Voluntary Deferred Compensation Plan for Executives	$ 8	$ 5.9		$ 8
Old Second Bancorp Inc Employees 401(k) Savings Plan and Trust
Employee Benefit Plans
Company's discretionary matching contributions to the Plan (as a percent)	100%	100%	100%
Company's discretionary matching contributions to the Plan (as a percent)				50%
Percentage of compensation contributed to the Plan matched by employer (as a percent)				2%
Percentage of compensation contributed to the Plan matched by employer	3%	3%	3%
Participants vesting as percentage of discretionary matching contributions	100%

Segment Information (Details)

Segment Information (Details)	12 Months Ended
	Dec. 31, 2024 segment
Segment Information
Number of reportable segment	1