Westamerica Bancorporation (WABC) 10-Q 8 Nov 24 2024 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2024	Oct. 29, 2024
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
Document Transition Report	false
Entity File Number	001-09383
Entity Registrant Name	WESTAMERICA BANCORPORATION
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	94-2156203
Entity Address, Address Line One	1108 FIFTH AVENUE
Entity Address, City or Town	SAN RAFAEL
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94901
City Area Code	707
Local Phone Number	863-6000
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	WABC
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		26,686,004
Entity Central Index Key	0000311094
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Amendment Flag	false

Consolidated Balance Sheets (Cu

Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
us-gaap_AssetsAbstract
Cash and due from banks	$ 502,945	$ 190,314
Debt securities available for sale	3,580,486	3,999,801
Debt securities held to maturity, net of allowance for credit losses of $1 at September 30, 2024 and December 31, 2023 (Fair value of $837,080 at September 30, 2024 and $849,562 at December 31, 2023)	850,261	878,396
Loans	833,967	866,602
Allowance for credit losses on loans	(15,318)	(16,867)
Loans, net of allowance for credit losses on loans	818,649	849,735
Premises and equipment, net	26,129	27,016
Identifiable intangibles, net	178	347
Goodwill	121,673	121,673
Other assets	260,822	297,310
Total Assets	6,161,143	6,364,592
us-gaap_LiabilitiesAbstract
Noninterest-bearing deposits	2,375,958	2,605,844
Interest-bearing deposits	2,689,092	2,868,423
Total deposits	5,065,050	5,474,267
Securities sold under repurchase agreements	132,487	58,162
Other liabilities	54,566	59,269
Total Liabilities	5,252,103	5,591,698
Shareholders' Equity:
Common stock (no par value), authorized: 150,000 shares issued and outstanding: 26,686 at September 30, 2024 and 26,671 at December 31, 2023	475,061	473,136
Deferred compensation	35	35
Accumulated other comprehensive loss	(127,653)	(190,282)
Retained earnings	561,597	490,005
Total Shareholders' Equity	909,040	772,894
Total Liabilities and Shareholders' Equity	$ 6,161,143	$ 6,364,592

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ / shares in Thousands, $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt securities held to maturity, allowance for credit losses	$ 1	$ 1
Debt securities held to maturity, fair value	$ 837,080	$ 849,562
Common Stock, No Par Value (in dollars per share)	$ 0	$ 0
Common Stock, Shares Authorized (in shares)	150,000	150,000
Common Stock, Shares, Issued (in shares)	26,686	26,671
Common Stock, Shares, Outstanding (in shares)	26,686	26,671

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Interest and Loan Fee Income:
Loans	$ 11,441	$ 11,925	$ 34,119	$ 35,510
Equity securities	175	152	524	456
Debt securities available for sale	40,829	47,994	130,999	142,256
Debt securities held to maturity	8,587	8,848	25,964	26,758
Interest-bearing cash	6,762	3,929	14,006	7,981
Total Interest and Loan Fee Income	67,794	72,848	205,612	212,961
Interest Expense, Operating and Nonoperating [Abstract]
Deposits	3,113	1,095	7,679	2,135
Bank Term Funding Program borrowings	2,278	0	5,813	0
Securities sold under repurchase agreements	254	38	461	76
Total Interest Expense	5,645	1,133	13,953	2,211
Net Interest and Loan Fee Income	62,149	71,715	191,659	210,750
Provision (Reversal of Provision) for Credit Losses	0	400	300	(1,150)
Net Interest and Loan Fee Income After Provision (Reversal of Provision) for Credit Losses	62,149	71,315	191,359	211,900
Noninterest Income:
Life insurance gains	202	278	202	278
Securities losses	0	0	0	(125)
Other noninterest income	2,129	784	3,674	2,539
Total Noninterest Income	11,925	11,281	32,522	32,530
Noninterest Expense:
Salaries and related benefits	12,762	11,820	37,831	35,715
Occupancy and equipment	5,256	5,065	15,454	15,562
Outsourced data processing services	2,614	2,473	7,661	7,405
Limited partnership operating losses	1,210	1,440	4,090	4,314
Professional fees	337	401	1,101	1,362
Other noninterest expense	3,448	3,706	10,384	11,370
Total Noninterest Expense	26,309	25,650	78,538	77,699
Income Before Income Taxes	47,765	56,946	145,343	166,731
Provision for income taxes	12,708	15,345	38,407	44,431
Net Income	$ 35,057	$ 41,601	$ 106,936	$ 122,300
Average Common Shares Outstanding (in shares)	26,685	26,648	26,680	26,718
Average Diluted Common Shares Outstanding (in shares)	26,686	26,650	26,681	26,721
Per Common Share Data:
Basic earnings (in dollars per share)	$ 1.31	$ 1.56	$ 4.01	$ 4.58
Diluted earnings (in dollars per share)	1.31	1.56	4.01	4.58
Dividends paid (in dollars per share)	$ 0.44	$ 0.44	$ 1.32	$ 1.28
Deposit Account [Member]
Noninterest Income:
Noninterest income revenue	$ 3,585	$ 3,705	$ 10,524	$ 10,629
Credit Card, Merchant Discount [Member]
Noninterest Income:
Noninterest income revenue	2,474	2,911	7,714	8,417
Debit Card [Member]
Noninterest Income:
Noninterest income revenue	1,702	1,717	4,951	5,118
Fiduciary and Trust [Member]
Noninterest Income:
Noninterest income revenue	846	783	2,451	2,358
ATM Processing Fees [Member]
Noninterest Income:
Noninterest income revenue	533	640	1,664	1,996
Financial Service, Other [Member]
Noninterest Income:
Noninterest income revenue	454	463	1,342	1,320
Noninterest Expense:
Courier service	$ 682	$ 745	$ 2,017	$ 1,971

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Net income	$ 35,057	$ 41,601	$ 106,936	$ 122,300
Other comprehensive income (loss):
Changes in net unrealized losses/gains on debt securities available for sale	98,879	(47,797)	88,915	(42,030)
Deferred tax (expense) benefit	(29,232)	14,131	(26,286)	12,426
Changes in net unrealized losses/gains on debt securities available for sale, net of tax	69,647	(33,666)	62,629	(29,604)
Total comprehensive income	$ 104,704	$ 7,935	$ 169,565	$ 92,696

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Deferred Compensation, Share-Based Payments [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2022	26,913
Balance at Dec. 31, 2022	$ 475,086	$ 35	$ (256,105)	$ 383,094	$ 602,110
Net income				122,300	122,300
Other comprehensive loss			(29,604)		(29,604)
Stock based compensation	$ 1,017				1,017
Stock awarded to employees (in shares)	1
Stock awarded to employees	$ 60				60
Dividends				(34,221)	(34,221)
Restricted stock activity (in shares)	9
Restricted stock activity	$ 508				508
Retirement of common stock (in shares)	(274)
Retirement of common stock	$ (4,844)			(8,903)	(13,747)
Balance (in shares) at Sep. 30, 2023	26,649
Balance at Sep. 30, 2023	$ 471,827	35	(285,709)	462,270	648,423
Balance (in shares) at Jun. 30, 2023	26,648
Balance at Jun. 30, 2023	$ 471,475	35	(252,043)	432,395	651,862
Net income				41,601	41,601
Other comprehensive loss			(33,666)		(33,666)
Stock based compensation	$ 339				339
Stock awarded to employees (in shares)	1
Stock awarded to employees	$ 13				13
Dividends				(11,726)	(11,726)
Balance (in shares) at Sep. 30, 2023	26,649
Balance at Sep. 30, 2023	$ 471,827	35	(285,709)	462,270	648,423
Balance (in shares) at Dec. 31, 2023	26,671
Balance at Dec. 31, 2023	$ 473,136	35	(190,282)	490,005	772,894
Net income				106,936	106,936
Other comprehensive loss			62,629		62,629
Exercise of stock options (in shares)	7
Exercise of stock options	$ 298				298
Stock based compensation	$ 1,144				1,144
Stock awarded to employees (in shares)	1
Stock awarded to employees	$ 60				60
Dividends				(35,216)	(35,216)
Restricted stock activity (in shares)	11
Restricted stock activity	$ 505				505
Retirement of common stock (in shares)	(4)
Retirement of common stock	$ (82)			(128)	(210)
Balance (in shares) at Sep. 30, 2024	26,686
Balance at Sep. 30, 2024	$ 475,061	35	(127,653)	561,597	909,040
Balance (in shares) at Jun. 30, 2024	26,683
Balance at Jun. 30, 2024	$ 474,583	35	(197,300)	538,282	815,600
Net income				35,057	35,057
Other comprehensive loss			69,647		69,647
Exercise of stock options (in shares)	2
Exercise of stock options	$ 95				95
Stock based compensation	$ 371				371
Stock awarded to employees (in shares)	1
Stock awarded to employees	$ 12				12
Dividends				(11,742)	(11,742)
Balance (in shares) at Sep. 30, 2024	26,686
Balance at Sep. 30, 2024	$ 475,061	$ 35	$ (127,653)	$ 561,597	$ 909,040

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Common Stock, Dividends, Per Share, Declared (in dollars per share)	$ 0.44	$ 0.44	$ 1.32	$ 1.28

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Net income	$ 106,936	$ 122,300
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,237	8,760
Provision (Reversal of Provision) for Credit Losses	300	(1,150)
Net amortization of deferred loan fees	(354)	(424)
Stock option compensation expense	1,144	1,017
Life insurance gains	(202)	(278)
Securities losses	0	125
Net gain on sale of other assets	(1,367)	0
Income taxes (receivable) payable	(6,027)	43,323
Net changes in:
Interest income receivable	6,441	(2,039)
Other assets	(711)	(336)
Net deferred tax asset	1,679	1,107
Interest expense payable	141	53
Other liabilities	(4,418)	(6,269)
Net Cash Provided by Operating Activities	111,799	166,189
Investing Activities:
Net repayments of loans	31,140	71,672
Purchases of debt securities available for sale	(13,636)	0
Proceeds from sale/maturity/calls of debt securities available for sale	515,196	376,842
Proceeds from maturity/calls of debt securities held to maturity	32,792	31,530
Purchases of Federal Reserve Bank stock	0	(2,326)
Proceeds from life insurance policies	1,059	0
Proceeds from sale of other assets	5,378	0
Purchases of premises and equipment	(1,077)	(897)
Net Cash Provided by Investing Activities	570,852	476,821
Financing Activities:
Net change in deposits	(409,217)	(526,277)
Net change in short-term borrowings	74,325	57,549
Exercise of stock options	298	0
Retirement of common stock	(210)	(13,747)
Common stock dividends paid	(35,216)	(34,221)
Net Cash Used in Financing Activities	(370,020)	(516,696)
Net Change In Cash and Due from Banks	312,631	126,314
Cash and Due from Banks at Beginning of Period	190,314	294,236
Cash and Due from Banks at End of Period	502,945	420,550
Supplemental disclosure of noncash activities:
Right-of-use assets acquired in exchange for operating lease liabilities	4,553	7,160
Supplemental disclosure of cash flow activities:
Cash paid for amounts included in operating lease liabilities	4,888	4,604
Interest paid for the period	13,812	2,158
Income tax payments for the period	$ 42,755	$ 0

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation	9 Months Ended
	Sep. 30, 2024
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	Note 1: Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission and follow general practices within the banking industry. The results of operations reflect interim adjustments, all of which are of a normal recurring nature and which, in the opinion of Management, are necessary for a fair presentation of the results for the interim periods presented. The interim results for the three and nine months ended September 30, 2024 are not necessarily indicative of the results expected for the full year. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes as well as other information included in the Company's Annual Report on Form 10-K for the year ended December 31, 2023.

Note 2 - Accounting Policies

Note 2 - Accounting Policies	9 Months Ended
	Sep. 30, 2024
Notes to Financial Statements
Significant Accounting Policies [Text Block]	Note 2: Accounting Policies The most significant accounting policies followed by the Company are presented in Note 1 to the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023. These policies, along with the disclosures presented in the other financial statement notes and in this discussion, provide information on how significant assets and liabilities are valued in the financial statements and how those values are determined. Based on the valuation techniques used and the sensitivity of financial statement amounts to the methods, assumptions, and estimates underlying those amounts, it is reasonably possible conditions could change materially affecting results of operations and financial conditions. Certain risks, uncertainties and other factors, including those discussed in “Risk Factors” in Part I – Item 1A of the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 may cause actual future results to differ materially from the results discussed in this report on Form 10-Q. Management continues to evaluate the impacts of inflation, the Federal Reserve’s monetary policy and climate changes on the Company’s business. During the first half of 2023, the banking industry experienced significant volatility with several regional bank failures. Industrywide concerns developed related to liquidity, deposit outflows and unrealized losses on investment debt securities. These recent events and concerns could adversely affect the Company’s ability to effectively fund its operations. Any one or a combination of such risk factors, or other factors, could materially adversely affect the Company's business, financial condition, results of operations and prospects. The extent of the impact on the Company’s results of operations, cash flow, liquidity, and financial performance, as well as the Company’s ability to execute near- and long-term business strategies and initiatives, will depend on numerous evolving factors and future developments, which are highly uncertain and cannot be reasonably predicted. Furthermore, the effects could have a material impact on the Company’s results of operations and heighten many of the risk factors discussed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023. Application of accounting principles requires the Company to make certain estimates, assumptions, and judgments that affect the amounts reported in the financial statements and accompanying notes. These estimates, assumptions, and judgments are based on information available as of the date of the financial statements; accordingly, as this information changes, the financial statements could reflect different estimates, assumptions, and judgments. Certain accounting policies inherently have a greater reliance on the use of estimates, assumptions and judgments and as such have a greater possibility of producing results that could be materially different than originally reported. Estimates, assumptions and judgments are necessary when assets and liabilities are required to be recorded at fair value, when a decline in the value of an asset not carried on the financial statements at fair value warrants a writedown or valuation reserve to be established, or when an asset or liability needs to be recorded contingent upon a future event. Carrying assets and liabilities at fair value inherently results in more financial statement volatility. Fair value is generally determined based on an exit price at which an asset or liability could be exchanged in a current transaction, other than in a forced or liquidation sale. The fair values and the information used to record valuation adjustments for certain assets and liabilities are based either on quoted market prices or are provided by other third-party sources, when available. Certain amounts in previous periods have been reclassified to conform to current presentation. Debt Securities. Debt securities consist of securities of government sponsored entities, states, counties, municipalities, corporations, agency mortgage-backed securities and collateralized loan obligations. Securities transactions are recorded on a trade date basis. The Company classifies its debt securities in one of three categories: trading, available for sale or held to maturity. Trading securities are bought and held principally for the purpose of selling them in the near term. Trading securities are recorded at fair value with unrealized gains and losses included in net income. Held to maturity debt securities are those securities which the Company has the ability and intent to hold until maturity. Held to maturity debt securities are recorded at cost, adjusted for the amortization of premiums or accretion of discounts. Securities not included in trading or held to maturity are classified as available for sale debt securities. Available for sale debt securities are recorded at fair value. Unrealized gains and losses, net of the related tax effect, on available for sale debt securities are included in accumulated other comprehensive income. Accrued interest is recorded within other assets and reversed against interest income if it is not received. The Company utilizes third-party sources to value its investment securities; securities individually valued using quoted prices in active markets are classified as Level 1 assets in the fair value hierarchy, and securities valued using quoted prices in active markets for similar securities (commonly referred to as “matrix” pricing) are classified as Level 2 assets in the fair value hierarchy. The Company validates the reliability of third-party provided values by comparing individual security pricing for securities between more than one third-party source. When third-party information is not available, valuation adjustments are estimated in good faith by Management and classified as Level 3 in the fair value hierarchy. The Company follows the guidance issued by the Board of Governors of the Federal Reserve System, “Investing in Securities without Reliance on Nationally Recognized Statistical Rating Agencies” (SR 12-15) and other regulatory guidance when performing investment security pre-purchase analysis or evaluating investment securities for credit loss. Credit ratings issued by recognized rating agencies are considered in the Company’s analysis only as a guide to the historical default rate associated with similarly-rated bonds. To the extent that debt securities in the held-to-maturity portfolio share common risk characteristics, estimated expected credit losses are calculated in a manner like that used for loans held for investment. That is, for pools of such securities with common risk characteristics, the historical lifetime probability of default and severity of loss in the event of default is derived or obtained from external sources and adjusted for the expected effects of reasonable and supportable forecasts over the expected lives of the securities on those historical credit losses. Expected credit loss on each security in the held-to-maturity portfolio that does not share common risk characteristics with any of the pools of debt securities is individually evaluated and a reserve for credit losses is established based on the Company’s consideration of the history of credit losses, current conditions and reasonable and supportable forecasts, which may indicate that the expectation that nonpayment of the amortized cost basis is or continues to be zero. Therefore, for those securities, the Company does not record expected credit losses. Available for sale debt securities in unrealized loss positions are evaluated for credit related loss at least quarterly. For available for sale debt securities, a decline in fair value due to credit loss results in recording an allowance for credit losses to the extent the fair value is less than the amortized cost basis. Declines in fair value that have not been recorded through an allowance for credit losses, such as declines due to changes in market interest rates, are recorded through other comprehensive income, net of applicable taxes. Although these evaluations involve significant judgment, an unrealized loss in the fair value of a debt security is generally considered to not be related to credit when the fair value of the security is below the carrying value primarily due to changes in risk-free interest rates, there has not been significant deterioration in the financial condition of the issuer, and the Company does not intend to sell nor does it believe it will be required to sell the security before the recovery of its cost basis. If the Company intends to sell a debt security or more likely than not will be required to sell the security before recovery of its amortized cost basis, the debt security is written down to its fair value and the write down is charged against the allowance for credit losses with any incremental loss reported in earnings. Purchase premiums are amortized to the earliest call date and purchase discounts are amortized to maturity as an adjustment to yield using the effective interest method. Unamortized premiums, unaccreted discounts, and early payment premiums are recognized as a component of gain or loss on sale upon disposition of the related security. Interest and dividend income are recognized when earned. Realized gains and losses from the sale of available for sale debt securities are included in earnings using the specific identification method. Nonmarketable Equity Securities. Nonmarketable equity securities include securities that are not publicly traded, such as Visa Class B-1 common stock, and securities acquired to meet regulatory requirements, such as Federal Reserve Bank stock, which are restricted. These restricted securities are accounted for under the cost method and are included in other assets. The Company reviews those assets accounted for under the cost method at least quarterly. The Company’s review typically includes an analysis of the facts and circumstances of each investment, the expectations for the investment’s cash flows and capital needs, the viability of its business model and any exit strategy. When the review indicates that impairment exists the asset value is reduced to fair value. The Company recognizes the estimated loss in noninterest income. See Note 6 to the unaudited consolidated financial statements for additional information related to nonmarketable equity securities. Loans. Loans are stated at the principal amount outstanding, net of unearned discount and unamortized deferred fees and costs. Interest is accrued daily on the outstanding principal balances and included in other assets. Loans which are more than 90 days delinquent with respect to interest or principal, unless they are well secured and in the process of collection, and other loans on which full recovery of principal or interest is in doubt, are placed on nonaccrual status. Interest previously accrued on loans placed on nonaccrual status is charged against interest income. In addition, some loans secured by real estate and commercial loans to borrowers experiencing financial difficulties are placed on nonaccrual status even though the borrowers continue to repay the loans as scheduled. When the ability to fully collect nonaccrual loan principal is in doubt, payments received are applied against the principal balance of the loans on a cost-recovery method until such time as full collection of the remaining recorded balance is expected. Any additional interest payments received after that time are recorded as interest income on a cash basis. Nonaccrual loans are reinstated to accrual status when none of the loan’s principal and interest is past due and improvements in credit quality eliminate doubt as to the full collectability of both principal and interest, or the loan otherwise becomes well secured and in the process of collection. Certain consumer loans or auto receivables are charged off against the allowance for credit losses when they become 120 days past due. Allowance for Credit Losses. The Company extends loans to commercial and consumer customers primarily in Northern and Central California. These lending activities expose the Company to the risk borrowers will default, causing loan losses. The Company’s lending activities are exposed to various qualitative risks. All loan segments are exposed to risks inherent in the economy and market conditions. Significant risk characteristics related to the commercial loan segment include the borrowers’ business performance and financial condition, and the value of collateral for secured loans. Significant risk characteristics related to the commercial real estate segment include the borrowers’ business performance and the value of properties collateralizing the loans. Significant risk characteristics related to the construction loan segment include the borrowers’ performance in successfully developing the real estate into the intended purpose and the value of the property collateralizing the loans. Significant risk characteristics related to the residential real estate segment include the borrowers’ financial wherewithal to service the mortgages and the value of the property collateralizing the loans. Significant risk characteristics related to the consumer loan segment include the financial condition of the borrowers and the value of collateral securing the loans. The preparation of the financial statements requires Management to estimate the amount of expected losses over the expected contractual life of the Bank’s existing loan portfolio and establish an allowance for credit losses. Loan agreements generally include a maturity date, and the Company considers the contractual life of a loan agreement to extend from the date of origination to the contractual maturity date. In estimating credit losses, Management must exercise significant judgment in evaluating information deemed relevant. The amount of ultimate losses on the loan portfolio can vary from the estimated amounts. Management follows a systematic methodology to estimate loss potential in an effort to reduce the differences between estimated and actual losses. The allowance for credit losses is established through provisions for credit losses charged to income. Losses on loans are charged to the allowance for credit losses when all or a portion of the recorded amount of a loan is deemed to be uncollectible. Recoveries of loans previously charged off are credited to the allowance when realized. The Company’s allowance for credit losses is maintained at a level considered adequate to provide for expected losses based on historical loss rates adjusted for current and expected conditions over a forecast period. These include conditions unique to individual borrowers, as well as overall credit loss experience, the amount of past due, nonperforming and classified loans, recommendations of regulatory authorities, prevailing economic conditions, or credit protection agreements and other factors. Loans that share common risk characteristics are segregated into pools based on common characteristics, which is primarily determined by loan, borrower, or collateral type. Historical loss rates are determined for each pool. For consumer installment loans, primarily secured by automobiles, historical loss rates are determined using a vintage methodology, which tracks losses based on period of origination. For commercial, construction, and commercial real estate, historical loss rates are determined using an open pool methodology where losses are tracked over time for all loans included in the pool at the historical measurement date. Historical loss rates are adjusted for factors that are not reflected in the historical loss rates that are attributable to national or local economic or industry trends which have occurred but have not yet been recognized in past loan charge-off history, estimated losses based on management’s reasonable and supportable expectation of economic trends over a forecast horizon of up to two years, and other factors that impact credit loss expectations that are not reflected in the historical loss rates. Other factors include, but are not limited to, the effectiveness of the Company’s loan review system, adequacy of lending Management and staff, loan policies and procedures, problem loan trends, and concentrations of credit. At the end of the two-year forecast period loss rates revert immediately to the historical loss rates. The results of this analysis are applied to the amortized cost of the loans included within each pool. Loans that do not share risk characteristics with other loans in the pools are evaluated individually. A loan is considered ‘collateral-dependent’ when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. A credit loss reserve for collateral-dependent loans is established at the difference between the amortized cost basis in the loan and the fair value of the underlying collateral adjusted for costs to sell. For other individually evaluated loans that are not collateral dependent, a credit loss reserve is established at the difference between the amortized cost basis in the loan and the present value of expected future cash flows discounted at the loan’s effective interest rate. The impact of an expected modification to be made to loans to borrowers experiencing financial difficulty is included in the allowance for credit losses when management determines such modification is likely. Accrued interest is recorded in other assets and is excluded from the estimation of expected credit loss. Accrued interest is reversed through interest income when amounts are determined to be uncollectible, which generally occurs when the underlying receivable is placed on nonaccrual status or charged off. Liability for Off-Balance Sheet Credit Exposures. Off-balance sheet credit exposures relate to letters of credit and unfunded loan commitments for commercial, construction and consumer loans. The Company maintains a separate allowance for credit losses from off-balance sheet credit exposures, which is included within other liabilities on the consolidated statements of financial condition. Increases or reductions to the Company’s allowance for credit losses from off-balance sheet credit exposures are recorded in other expenses. Management estimates the amount of expected losses by estimating expected usage exposures that are not unconditionally cancellable by the Company and applying the loss factors used in the allowance for credit loss methodology to estimate the liability for credit losses related to unfunded commitments. No credit loss estimate is reported for off-balance sheet credit exposures that are unconditionally cancellable by the Company or for undrawn amounts under such arrangements that may be drawn prior to the cancellation of the arrangement. Recently Adopted Accounting Standards FASB ASU 2020-04 Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848. FASB ASU 2022-03 Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions Recently Issued Accounting Standards FASB ASU 2023-09 Income Taxes (Topic 740): Improvements to Income Tax Disclosures FASB ASU 2023-07 Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures

Note 3 - Investment Securities

Note 3 - Investment Securities	9 Months Ended
	Sep. 30, 2024
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	Note 3: Investment Securities An analysis of the amortized cost and fair value by major categories of debt securities available for sale, which are carried at fair value with net unrealized gains (losses) reported on an after-tax basis as a component of accumulated other comprehensive income, and debt securities held to maturity, which are carried at amortized cost, before allowance for credit losses of $1 thousand at September 30, 2024 and December 31, 2023, follows. In accordance with GAAP, unrealized gains and losses on held to maturity securities have not been recognized in the Company’s financial statements. At September 30, 2024 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale: Agency residential mortgage-backed securities ("MBS") $ 240,374 $ 162 $ (12,971 ) $ 227,565 Securities of U.S. Government sponsored entities 310,593 119 (7,103 ) 303,609 U.S. Treasury Securities 4,883 16 - 4,899 Obligations of states and political subdivisions 65,001 30 (1,155 ) 63,876 Corporate securities 2,057,115 295 (155,793 ) 1,901,617 Collateralized loan obligations 1,083,752 1,943 (6,775 ) 1,078,920 Total debt securities available for sale 3,761,718 2,565 (183,797 ) 3,580,486 Debt securities held to maturity: Agency residential MBS 62,745 26 (3,336 ) 59,435 Obligations of states and political subdivisions 53,769 33 (157 ) 53,645 Corporate securities 733,748 1,911 (11,659 ) 724,000 Total debt securities held to maturity 850,262 1,970 (15,152 ) 837,080 Total $ 4,611,980 $ 4,535 $ (198,949 ) $ 4,417,566 At December 31, 2023 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale: Agency residential MBS $ 258,150 $ 6 $ (18,702 ) $ 239,454 Securities of U.S. Government sponsored entities 308,768 2 (13,851 ) 294,919 Obligations of states and political subdivisions 72,679 42 (1,438 ) 71,283 Corporate securities 2,129,103 480 (220,035 ) 1,909,548 Collateralized loan obligations 1,501,248 830 (17,481 ) 1,484,597 Total debt securities available for sale 4,269,948 1,360 (271,507 ) 3,999,801 Debt securities held to maturity: Agency residential MBS 78,565 17 (5,270 ) 73,312 Obligations of states and political subdivisions 71,182 47 (335 ) 70,894 Corporate securities 728,650 84 (23,378 ) 705,356 Total debt securities held to maturity 878,397 148 (28,983 ) 849,562 Total $ 5,148,345 $ 1,508 $ (300,490 ) $ 4,849,363 [The remainder of this page intentionally left blank] The amortized cost and fair value of debt securities by contractual maturity are shown in the following tables at the dates indicated: At September 30, 2024 Debt Securities Available Debt Securities Held for Sale to Maturity Amortized Fair Amortized Fair Cost Value Cost Value (In thousands) Maturity in years: 1 year or less $ 124,819 $ 124,367 $ 9,959 $ 9,940 Over 1 to 5 years 923,013 890,059 352,871 353,249 Over 5 to 10 years 1,389,760 1,259,575 424,687 414,456 Subtotal 2,437,592 2,274,001 787,517 777,645 Collateralized loan obligations 1,083,752 1,078,920 - - Agency residential MBS 240,374 227,565 62,745 59,435 Total $ 3,761,718 $ 3,580,486 $ 850,262 $ 837,080 At December 31, 2023 Debt Securities Available Debt Securities Held for Sale to Maturity Amortized Fair Amortized Fair Cost Value Cost Value (In thousands) Maturity in years: 1 year or less $ 52,703 $ 52,357 $ 15,117 $ 15,095 Over 1 to 5 years 756,658 721,179 312,847 307,557 Over 5 to 10 years 1,701,189 1,502,214 471,868 453,598 Subtotal 2,510,550 2,275,750 799,832 776,250 Collateralized loan obligations 1,501,248 1,484,597 - - Agency residential MBS 258,150 239,454 78,565 73,312 Total $ 4,269,948 $ 3,999,801 $ 878,397 $ 849,562 Expected amortizing principal payments of collateralized loan obligations can differ from actual cash flows because the securities can be called and paid-off. Expected maturities of mortgage-related securities can differ from contractual maturities because borrowers have the right to call or prepay obligations with or without call or prepayment penalties. In addition, such factors as prepayments and interest rates may affect the yield on the carrying value of mortgage-related securities. An analysis of the gross unrealized losses of the debt securities available for sale portfolio follows: Debt Securities Available for Sale At September 30, 2024 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrealized Investment Unrealized Investment Unrealized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 3 $ 5,141 $ (39 ) 102 $ 208,765 $ (12,932 ) 105 $ 213,906 $ (12,971 ) Securities of U.S. - - - 19 286,796 (7,103 ) 19 286,796 (7,103 ) Obligations of states - - - 40 52,472 (1,155 ) 40 52,472 (1,155 ) Corporate securities - - - 140 1,877,015 (155,793 ) 140 1,877,015 (155,793 ) Collateralized loan 6 64,655 (90 ) 40 411,655 (6,685 ) 46 476,310 (6,775 ) Total 9 $ 69,796 $ (129 ) 341 $ 2,836,703 $ (183,668 ) 350 $ 2,906,499 $ (183,797 ) An analysis of gross unrecognized losses of the debt securities held to maturity portfolio follows: Debt Securities Held to Maturity At September 30, 2024 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrecognized Investment Unrecognized Investment Unrecognized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS - $ - $ - 80 $ 58,401 $ (3,336 ) 80 $ 58,401 $ (3,336 ) Obligations of states 5 1,214 (1 ) 26 26,008 (156 ) 31 27,222 (157 ) Corporate securities - - - 34 466,729 (11,659 ) 34 466,729 (11,659 ) Total 5 $ 1,214 $ (1 ) 140 $ 551,138 $ (15,151 ) 145 $ 552,352 $ (15,152 ) Based upon the Company’s September 30, 2024 evaluation, the unrealized losses on debt securities were caused by market conditions for these types of securities. Market interest rates are currently higher than the book yield of the securities, causing declines in bond values generally. The Company continually monitors interest rate changes, risk premium spread changes, credit rating changes for issuers of bonds owned, collateralized loan obligations’ collateral levels, and corporate bond issuers’ common stock price changes. All collateralized loan obligations, obligations of states and political subdivisions, and corporate securities were investment grade rated at September 30, 2024. The Company does not intend to sell any debt securities available for sale with a material unrealized loss and has concluded that it is more likely than not that it will not be required to sell the debt securities prior to recovery of the amortized cost basis. The Company evaluates held to maturity corporate securities individually, monitoring each issuer’s financial condition, profitability, cash flows and credit rating agency conclusions. The Company has evaluated each issuer’s historical financial performance and ability to service debt payments, including throughout and following the 2008-2009 recession. The Company has an expectation that nonpayment of the amortized cost basis continues to be zero. The fair values of debt securities could decline in the future if market interest rates rise, the general economy deteriorates, inflation increases, credit ratings decline, the issuers’ financial condition deteriorates, or the liquidity for debt securities declines. As a result, significant credit losses on debt securities may occur in the future. As of September 30, 2024 and December 31, 2023, the Company’s debt securities pledged had a carrying amount of $2,141,666 thousand and $2,034,706 thousand, respectively, primarily to secure public deposits, Federal Reserve Bank borrowings and securities sold under repurchase agreements. An analysis of the gross unrealized losses of the debt securities available for sale portfolio follows: Debt Securities Available for Sale At December 31, 2023 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrealized Investment Unrealized Investment Unrealized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 1 $ 115 $ (2 ) 107 $ 238,642 $ (18,700 ) 108 $ 238,757 $ (18,702 ) Securities of U.S. 2 9,746 (15 ) 19 278,265 (13,836 ) 21 288,011 (13,851 ) Obligations of states 2 2,280 (15 ) 50 57,614 (1,423 ) 52 59,894 (1,438 ) Corporate securities - - - 151 1,894,602 (220,035 ) 151 1,894,602 (220,035 ) Collateralized loan 34 428,363 (8,914 ) 67 578,643 (8,567 ) 101 1,007,006 (17,481 ) Total 39 $ 440,504 $ (8,946 ) 394 $ 3,047,766 $ (262,561 ) 433 $ 3,488,270 $ (271,507 ) An analysis of gross unrecognized losses of the debt securities held to maturity portfolio follows: Debt Securities Held to Maturity At December 31, 2023 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrecognized Investment Unrecognized Investment Unrecognized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 1 $ - $ - 93 $ 72,376 $ (5,270 ) 94 $ 72,376 $ (5,270 ) Obligations of states 23 18,599 (90 ) 26 25,466 (245 ) 49 44,065 (335 ) Corporate securities 3 26,567 (1,184 ) 46 641,598 (22,194 ) 49 668,165 (23,378 ) Total 27 $ 45,166 $ (1,274 ) 165 $ 739,440 $ (27,709 ) 192 $ 784,606 $ (28,983 ) The Company evaluates debt securities on a quarterly basis including changes in security ratings issued by rating agencies, changes in the financial condition of the issuer, collateral levels and, for mortgage-backed and asset-backed securities, delinquency and loss information with respect to the underlying collateral, changes in the levels of subordination for the Company’s particular position within the repayment structure and remaining credit enhancement as compared to expected credit losses of the security. In addition to monitoring credit rating agency evaluations, Management performs its own evaluations regarding the credit worthiness of the issuer or the securitized assets underlying asset backed securities. The following table presents the activity in the allowance for credit losses for debt securities held to maturity: For the Nine Months Ended September 30, 2024 2023 (In thousands) Allowance for credit losses: Beginning balance $ 1 $ 1 Provision - - Chargeoffs - - Recoveries - - Total ending balance $ 1 $ 1 Agency mortgage-backed securities were assigned no credit loss allowance due to the perceived backing of government sponsored entities. Municipal securities were evaluated for risk of default based on credit rating and remaining term to maturity using Moody’s risk of default factors; Moody’s loss upon default factors were applied to the assumed defaulted principal amounts to estimate the amount for credit loss allowance. Corporate securities held to maturity were individually evaluated for expected credit loss by evaluating the issuer’s financial condition, profitability, cash flows, and credit ratings. At September 30, 2024, no credit loss allowance was assigned to corporate securities held to maturity. The following table summarizes the amortized cost of debt securities held to maturity at September 30, 2024, aggregated by credit rating: Credit Risk Profile by Credit Rating At September 30, 2024 AAA/AA/A BBB+/BBB Not Rated Total (In thousands) Agency residential MBS $ 62,247 $ - $ 498 $ 62,745 Obligations of states and political subdivisions 53,769 - - 53,769 Corporate securities 558,223 175,525 - 733,748 Total $ 674,239 $ 175,525 $ 498 $ 850,262 There were no debt securities held to maturity on nonaccrual status or past due 30 days or more as of September 30, 2024. The following table provides information about the amount of interest income earned on investment securities which is fully taxable and which is exempt from federal income tax: For the Three Months For the Nine Months Ended September 30, 2024 2023 2024 2023 (In thousands) Taxable $ 48,699 $ 55,911 $ 154,648 $ 166,031 Tax-exempt from federal income tax 892 1,083 2,839 3,439 Total interest income from investment securities $ 49,591 $ 56,994 $ 157,487 $ 169,470

Note 4 - Loans, Allowance for C

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned	9 Months Ended
	Sep. 30, 2024
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	Note 4: Loans, Allowance for Credit Losses and Other Real Estate Owned A summary of the major categories of loans outstanding is shown in the following tables at the dates indicated: At September 30, At December 31, 2024 2023 (In thousands) Commercial $ 130,096 $ 136,550 Commercial real estate 503,561 487,523 Construction 5,064 5,063 Residential real estate 8,813 9,935 Consumer installment & other 186,433 227,531 Total $ 833,967 $ 866,602 The following summarizes activity in the allowance for credit losses: Allowance for Credit Losses For the Three Months Ended September 30, 2024 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 3,896 $ 5,922 $ 243 $ 24 $ 5,867 $ 15,952 Provision (reversal) 182 100 3 (2 ) (283 ) - Chargeoffs (109 ) - - - (1,549 ) (1,658 ) Recoveries 41 14 - - 969 1,024 Total allowance for credit losses $ 4,010 $ 6,036 $ 246 $ 22 $ 5,004 $ 15,318 Allowance for Credit Losses For the Nine Months Ended September 30, 2024 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 4,216 $ 5,925 $ 245 $ 26 $ 6,455 $ 16,867 (Reversal) provision (133 ) (80 ) 1 (4 ) 516 300 Chargeoffs (137 ) - - - (5,065 ) (5,202 ) Recoveries 64 191 - - 3,098 3,353 Total allowance for credit losses $ 4,010 $ 6,036 $ 246 $ 22 $ 5,004 $ 15,318 [The remainder of this page intentionally left blank] Allowance for Credit Losses For the Three Months Ended September 30, 2023 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 4,764 $ 6,083 $ 202 $ 32 $ 7,399 $ 18,480 (Reversal) provision (345 ) (194 ) 40 (6 ) 905 400 Chargeoffs (262 ) - - - (1,827 ) (2,089 ) Recoveries 10 15 - - 928 953 Total allowance for credit losses $ 4,167 $ 5,904 $ 242 $ 26 $ 7,405 $ 17,744 Allowance for Credit Losses For the Nine Months Ended September 30, 2023 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 6,138 $ 5,888 $ 150 $ 32 $ 8,076 $ 20,284 (Reversal) provision (3,755 ) (29 ) 92 (6 ) 2,548 (1,150 ) Chargeoffs (410 ) - - - (5,379 ) (5,789 ) Recoveries 2,194 45 - - 2,160 4,399 Total allowance for credit losses $ 4,167 $ 5,904 $ 242 $ 26 $ 7,405 $ 17,744 The Company’s customers are primarily small businesses, professionals and consumers. Given the scale of these borrowers, corporate credit rating agencies do not evaluate the borrowers’ financial condition. The Bank maintains a Loan Review Department which reports directly to the Audit Committee of the Board of Directors. The Loan Review Department performs independent evaluations of loans and validates management assigned credit risk grades on evaluated loans using grading standards employed by bank regulatory agencies. Loans judged to carry lower-risk attributes are assigned a “pass” grade, with a minimal likelihood of loss. Loans judged to carry higher-risk attributes are referred to as “classified loans,” and are further disaggregated, with increasing expectations for loss recognition, as “substandard,” “doubtful,” and “loss.” The Loan Review Department performs continuous evaluations throughout the year. If the Bank becomes aware of deterioration in a borrower’s performance or financial condition between Loan Review Department examinations, assigned risk grades are re-evaluated promptly. Credit risk grades assigned by management and validated by the Loan Review Department are subject to review by the Bank’s regulatory authorities during regulatory examinations. The following summarizes the credit risk profile by internally assigned grade: Credit Risk Profile by Internally Assigned Grade At September 30, 2024 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 123,277 $ 492,369 $ - $ 8,515 $ 183,490 $ 807,651 Substandard 6,819 11,192 5,064 298 1,727 25,100 Doubtful - - - - 509 509 Loss - - - - 707 707 Total $ 130,096 $ 503,561 $ 5,064 $ 8,813 $ 186,433 $ 833,967 Credit Risk Profile by Internally Assigned Grade At December 31, 2023 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 130,001 $ 475,870 $ 5,063 $ 9,606 $ 225,089 $ 845,629 Substandard 6,549 11,653 - 329 377 18,908 Doubtful - - - - 1,479 1,479 Loss - - - - 586 586 Total $ 136,550 $ 487,523 $ 5,063 $ 9,935 $ 227,531 $ 866,602 The following tables summarize loans by delinquency and nonaccrual status: Summary of Loans by Delinquency and Nonaccrual Status At September 30, 2024 Current and Accruing 30-59 Days Past Due and Accruing 60-89 Days Past Due and Accruing Past Due 90 Days or More and Accruing Nonaccrual Total Loans (In thousands) Commercial $ 129,899 $ 89 $ 48 $ - $ 60 $ 130,096 Commercial real estate 502,930 439 - - 192 503,561 Construction 5,064 - - - - 5,064 Residential real estate 8,813 - - - - 8,813 Consumer installment and other 180,950 3,946 870 667 - 186,433 Total $ 827,656 $ 4,474 $ 918 $ 667 $ 252 $ 833,967 Summary of Loans by Delinquency and Nonaccrual Status At December 31, 2023 Current and Accruing 30-59 Days Past Due and Accruing 60-89 Days Past Due and Accruing Past Due 90 Days or More and Accruing Nonaccrual Total Loans (In thousands) Commercial $ 136,421 $ 58 $ - $ - $ 71 $ 136,550 Commercial real estate 485,476 951 766 - 330 487,523 Construction 5,063 - - - - 5,063 Residential real estate 9,933 - - - 2 9,935 Consumer installment and other 220,357 5,544 1,242 388 - 227,531 Total $ 857,250 $ 6,553 $ 2,008 $ 388 $ 403 $ 866,602 There was no no There were no A loan is considered collateral dependent when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. Loans that were considered collateral dependent at September 30, 2024 included the following: nine nine Based on the most recent analysis performed, the risk category of loans by class of loans is as follows: At September 30, 2024 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2020 2021 2022 2023 2024 Term Loans Cost Basis Total (In thousands) Commercial loans by grade: Pass $ 19,923 $ 9,406 $ 20,684 $ 13,350 $ 16,195 $ 16,969 $ 96,527 $ 26,750 $ 123,277 Substandard 2,672 - 2,835 - - - 5,507 1,312 6,819 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 22,595 $ 9,406 $ 23,519 $ 13,350 $ 16,195 $ 16,969 $ 102,034 $ 28,062 $ 130,096 Current gross chargeoffs on commercial loans: For the three months ended September 30, 2024 $ - $ - $ - $ - $ - $ - $ - $ 109 $ 109 For the nine months ended September 30, 2024 - - - - - - - 137 137 At December 31, 2023 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2019 2020 2021 2022 2023 Term Loans Cost Basis Total (In thousands) Commercial loans by grade: Pass $ 20,554 $ 4,471 $ 12,601 $ 31,770 $ 22,146 $ 13,112 $ 104,654 $ 25,347 $ 130,001 Substandard 12 2,492 - 2,835 - - 5,339 1,210 6,549 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 20,566 $ 6,963 $ 12,601 $ 34,605 $ 22,146 $ 13,112 $ 109,993 $ 26,557 $ 136,550 Current gross chargeoffs on commercial loans: For the year ended December 31, 2023 $ - $ - $ 3 $ 135 $ - $ - $ 138 $ 272 $ 410 At September 30, 2024 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2020 2021 2022 2023 2024 Term Loans Cost Basis Total (In thousands) Commercial real estate loans by grade: Pass $ 215,780 $ 66,206 $ 64,703 $ 49,590 $ 43,371 $ 52,719 $ 492,369 $ - $ 492,369 Substandard 10,216 976 - - - - 11,192 - 11,192 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 225,996 $ 67,182 $ 64,703 $ 49,590 $ 43,371 $ 52,719 $ 503,561 $ - $ 503,561 Current gross chargeoffs on commercial real estate loans: For the three months ended September 30, 2024 $ - $ - $ - $ - $ - $ - $ - $ - $ - For the nine months ended September 30, 2024 - - - - - - - - - At December 31, 2023 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2019 2020 2021 2022 2023 Term Loans Cost Basis Total (In thousands) Commercial real estate loans by grade: Pass $ 172,925 $ 68,156 $ 69,324 $ 68,891 $ 50,899 $ 45,675 $ 475,870 $ - $ 475,870 Substandard 10,056 811 786 - - - 11,653 - 11,653 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 182,981 $ 68,967 $ 70,110 $ 68,891 $ 50,899 $ 45,675 $ 487,523 $ - $ 487,523 Current gross chargeoffs on commercial real estate loans: For the year ended December 31, 2023 $ 45 $ - $ - $ - $ - $ - $ 45 $ - $ 45 At September 30, 2024 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2020 2021 2022 2023 2024 Term Loans Cost Basis Total (In thousands) Residential real estate loans by grade: Pass $ 8,515 $ - $ - $ - $ - $ - $ 8,515 $ - $ 8,515 Substandard 298 - - - - - 298 - 298 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 8,813 $ - $ - $ - $ - $ - $ 8,813 $ - $ 8,813 Current gross chargeoffs on residential real estate loans: For the three months ended September 30, 2024 $ - $ - $ - $ - $ - $ - $ - $ - $ - For the nine months ended September 30, 2024 - - - - - - - - - At December 31, 2023 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2019 2020 2021 2022 2023 Term Loans Cost Basis Total (In thousands) Residential real estate loans by grade: Pass $ 9,606 $ - $ - $ - $ - $ - $ 9,606 $ - $ 9,606 Substandard 329 - - - - - 329 - 329 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 9,935 $ - $ - $ - $ - $ - $ 9,935 $ - $ 9,935 Current gross chargeoffs on residential real estate loans: For the year ended December 31, 2023 $ - $ - $ - $ - $ - $ - $ - $ - $ - At September 30, 2024 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2020 2021 2022 2023 2024 Term Loans Cost Basis Total (In thousands) Construction loans by grade: Pass $ - $ - $ - $ - $ - $ - $ - $ - $ - Substandard - - - - - - - 5,064 5,064 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ - $ - $ - $ - $ - $ - $ - $ 5,064 $ 5,064 Current gross chargeoffs on construction loans: For the three months ended September 30, 2024 $ - $ - $ - $ - $ - $ - $ - $ - $ - For the nine months ended September 30, 2024 - - - - - - - - - At December 31, 2023 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2019 2020 2021 2022 2023 Term Loans Cost Basis Total (In thousands) Construction loans by grade: Pass $ - $ - $ - $ - $ - $ - $ - $ 5,063 $ 5,063 Substandard - - - - - - - - - Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ - $ - $ - $ - $ - $ - $ - $ 5,063 $ 5,063 Current gross chargeoffs on construction loans: For the year ended December 31, 2023 $ - $ - $ - $ - $ - $ - $ - $ - $ - The Company considers the delinquency and nonaccrual status of the consumer loan portfolio and its impact on the allowance for credit losses. The following table presents the amortized cost in consumer installment and other loans based on delinquency and nonaccrual status: At September 30, 2024 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2020 2021 2022 2023 2024 Term Loans Cost Basis Total (In thousands) Consumer installment and other loans by delinquency and nonaccrual status: Current $ 8,360 $ 14,762 $ 36,249 $ 54,464 $ 29,550 $ 21,908 $ 165,293 $ 15,657 $ 180,950 30-59 days past due 217 294 1,682 1,206 346 169 3,914 32 3,946 60-89 days past due 17 20 142 385 87 16 667 203 870 Past due 90 days or more 37 70 301 51 99 103 661 6 667 Nonaccrual - - - - - - - - - Total $ 8,631 $ 15,146 $ 38,374 $ 56,106 $ 30,082 $ 22,196 $ 170,535 $ 15,898 $ 186,433 Current gross chargeoffs on consumer installment and other loans: For the three months ended September 30, 2024 $ 62 $ 61 $ 553 $ 296 $ 326 $ 11 $ 1,309 $ 240 $ 1,549 For the nine months ended September 30, 2024 241 327 1,935 1,403 778 11 4,695 370 5,065 At December 31, 2023 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2019 2020 2021 2022 2023 Term Loans Cost Basis Total (In thousands) Consumer installment and other loans by delinquency and nonaccrual status: Current $ 6,545 $ 12,144 $ 22,700 $ 51,055 $ 71,388 $ 38,699 $ 202,531 $ 17,826 $ 220,357 30-59 days past due 160 277 600 2,345 1,733 332 5,447 97 5,544 60-89 days past due 31 51 153 410 430 122 1,197 45 1,242 Past due 90 days or more - 8 88 143 138 - 377 11 388 Nonaccrual - - - - - - - - - Total $ 6,736 $ 12,480 $ 23,541 $ 53,953 $ 73,689 $ 39,153 $ 209,552 $ 17,979 $ 227,531 Current gross chargeoffs on consumer installment and other loans: For the year ended December 31, 2023 $ 246 $ 161 $ 843 $ 2,329 $ 3,191 $ 453 $ 7,223 $ 276 $ 7,499 There were no The Company held no no

Note 5 - Concentration of Credi

Note 5 - Concentration of Credit Risk	9 Months Ended
	Sep. 30, 2024
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	Note 5: Concentration of Credit Risk Under the California Financial Code, credit extended to any one person at any one time shall not exceed the following limitations: (a) unsecured credits shall not exceed 15 percent of the sum of the Bank’s shareholders’ equity, allowance for loan losses, capital notes, and debentures, or (b) secured and unsecured credits in all shall not exceed 25 percent of the sum of the Bank’s shareholders’ equity, allowance for loan losses, capital notes, and debentures. At September 30, 2024, the Bank did not have credit extended to any one entity exceeding these limits. At September 30, 2024, the Bank had 25 lending relationships each with aggregate amounts of $5 million or more. The Company has significant credit arrangements that are secured by real estate collateral. In addition to real estate loans outstanding as disclosed in Note 4, the Company had loan commitments related to real estate loans of $27,956 thousand and $30,888 thousand at September 30, 2024 and December 31, 2023, respectively. The Company requires collateral on all real estate loans with loan-to-value ratios at origination generally no greater than 75% on commercial real estate loans and no greater than 80% on residential real estate loans. At September 30, 2024, the Bank held corporate bonds in 106 issuing entities that exceeded $5 million for each issuer.

Note 6 - Other Assets and Other

Note 6 - Other Assets and Other Liabilities	9 Months Ended
	Sep. 30, 2024
Notes to Financial Statements
Other Assets and Liabilities Disclosure [Text Block]	Note 6: Other Assets and Other Liabilities Other assets consisted of the following: At September 30, At December 31, 2024 2023 (In thousands) Cost method equity investments: Federal Reserve Bank stock (1) $ 14,069 $ 14,069 Other investments 158 158 Total cost method equity investments 14,227 14,227 Life insurance cash surrender value 67,888 66,611 Net deferred tax asset 72,916 99,507 Right-of-use asset 18,953 18,814 Limited partnership investments 24,577 28,667 Interest receivable 48,127 54,568 Prepaid assets 4,613 5,200 Other assets 9,521 9,716 Total other assets $ 260,822 $ 297,310 (1) A bank applying for membership in the Federal Reserve System is required to subscribe to stock in the Federal Reserve Bank (FRB) in its district in a sum equal to six percent of the bank’s paid-up capital stock and surplus. One-half of the amount of the bank's subscription shall be paid to the FRB and the remaining half will be subject to call when deemed necessary by the Board of Governors of the Federal Reserve System. The Company owns 211 thousand shares of Visa Inc. (“Visa”) Class B-1 common stock, which have transfer restrictions; the carrying value is $-0- thousand. Following the resolution of certain litigation involving Visa, shares of Visa’s Class B-1 stock will convert to shares of Visa Class A common stock based on a conversion factor (1.5653 as of September 30, 2024), which is periodically adjusted to reflect Visa’s ongoing litigation costs. Given the transfer restrictions and continuing uncertainty regarding the likelihood, ultimate timing and eventual conversion of Visa Class B-1 common stock for shares of Visa Class A common stock or other marketable classes of Visa common stock, these shares are not considered to have a readily determinable fair value and have no carrying value. Visa Class A common stock trades on the New York Stock Exchange and had a closing price of $274.95 per share on September 30, 2024, the last trading day for the third quarter 2024. The ultimate value of the Company’s Visa Class B-1 shares is subject to the extent of Visa’s future litigation escrow fundings, the resulting conversion rate to Visa Class A common stock, and current and future transfer restrictions on the Visa Class B-1 common stock. Effective January 24, 2024, all outstanding shares of Visa Class B common stock, including 211 thousand Visa Class B shares then held by the Company, were redenominated as Visa Class B-1 common stock. During the quarter ended June 30, 2024, Visa conducted an exchange offer under which Visa Class B-1 stockholders could elect to exchange a portion of their Visa Class B-1 shares for a combination of Visa Class C common stock, which is convertible into publicly traded Visa Class A common stock, and Visa Class B-2 common stock, which remains restricted. The Company did not exchange any Visa Class B-1 shares in the exchange offer, which expired on May 3, 2024. At September 30, 2024, the Company did not record an adjustment to the carrying value of the Visa Class B-1 shares. The Company invests in flow-through limited liability entities that manage or invest in affordable housing projects that qualify for low-income housing tax credits. At September 30, 2024, these investments totaled $24,577 thousand and $9,831 thousand of this amount represents outstanding equity capital commitments that are included in other liabilities. At December 31, 2023, these investments totaled $28,667 thousand and $15,561 thousand of this amount represents outstanding equity capital commitments that are included in other liabilities. At September 30, 2024, the $9,831 thousand of outstanding equity capital commitments are expected to be paid as follows: $8,347 thousand in the remainder of 2024, $600 thousand in 2025, $145 thousand in 2026, $189 thousand in 2027, and $550 thousand in 2028 or thereafter. The amounts recognized in net income for these investments include: For the Three Months Ended For the Nine Months Ended September 30, 2024 2023 2024 2023 (In thousands) Investment loss included in pre-tax income $ 1,210 $ 1,440 $ 4,090 $ 4,314 Tax credits recognized in provision for income taxes 785 765 2,735 2,820 Other liabilities consisted of the following: At September 30, At December 31, 2024 2023 (In thousands) Operating lease liability $ 18,953 $ 18,814 Other liabilities 35,613 40,455 Total other liabilities $ 54,566 $ 59,269 The Company has entered into leases for most branch locations and certain other offices that were classified as operating leases primarily with original terms of five five As of September 30, 2024, the Company’s lease liability and right-of-use asset were $18,953 thousand. The weighted average remaining life of operating leases and weighted average discount rate used to determine operating lease liabilities were 4.0 years and 3.29%, respectively, at September 30, 2024. The Company did not have any material lease incentives, unamortized initial direct costs, prepaid lease expense, or accrued lease expense as of September 30, 2024. Total lease costs were $1,663 thousand and $5,020 thousand in the three and nine months ended September 30, 2024, respectively, and were recorded within occupancy and equipment expense. During the three and nine months ended September 30, 2023, total lease costs of $1,633 thousand and $4,949 thousand, respectively, were recorded within occupancy and equipment expense. The Company did not have any material short-term or variable lease costs or sublease income during the nine months ended September 30, 2024 and September 30, 2023. [The remainder of this page intentionally left blank] The following table summarizes the remaining lease payments of operating lease liabilities: Minimum At September 30, 2024 (In thousands) The remainder of 2024 $ 1,627 2025 6,082 2026 4,453 2027 3,578 2028 2,845 Thereafter 1,734 Total minimum lease payments 20,319 Less: discount (1,366 ) Present value of lease liability $ 18,953

Note 7 - Goodwill and Identifia

Note 7 - Goodwill and Identifiable Intangible Assets	9 Months Ended
	Sep. 30, 2024
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	Note 7: Goodwill and Identifiable Intangible Assets The Company has recorded goodwill and other identifiable intangibles associated with purchase business combinations. Goodwill is not amortized, but is evaluated for impairment at least annually. The Company did not recognize impairment during the nine months ended September 30, 2024 and year ended December 31, 2023, as no no The carrying values of goodwill were: At September 30, 2024 At December 31, 2023 (In thousands) Goodwill $ 121,673 $ 121,673 The gross carrying amount of identifiable intangible assets and accumulated amortization were: At September 30, 2024 At December 31, 2023 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization (In thousands) Core deposit intangibles $ 56,808 $ (56,630 ) $ 56,808 $ (56,461 ) As of September 30, 2024, the current period and estimated future amortization expense for identifiable intangible assets, to be fully amortized in 2025, was: Total Core Deposit Intangibles (In thousands) For the nine months ended September 30, 2024 (actual) $ 169 The remainder of 2024 53 2025 125

Note 8 - Deposits and Borrowed

Note 8 - Deposits and Borrowed Funds	9 Months Ended
	Sep. 30, 2024
Notes to Financial Statements
Deposits and Borrowed Funds [Text Block]	Note 8: Deposits and Borrowed Funds The following table provides additional detail regarding deposits. Deposits At September 30, At December 31, 2024 2023 (In thousands) Noninterest-bearing $ 2,375,958 $ 2,605,844 Interest-bearing: Transaction 925,455 1,072,233 Savings 1,677,332 1,699,388 Time deposits less than $100 thousand 50,030 56,100 Time deposits $100 thousand through $250 thousand 26,005 31,107 Time deposits more than $250 thousand 10,270 9,595 Total deposits $ 5,065,050 $ 5,474,267 Demand deposit overdrafts of $898 thousand and $620 thousand were included as loan balances at September 30, 2024 and December 31, 2023, respectively. Interest expense for aggregate time deposits with individual account balances in excess of $100 thousand was $30 thousand and $71 thousand for the three and nine months ended September 30, 2024, respectively, and $26 thousand and $91 thousand for the three and nine months ended September 30, 2023, respectively. The following table provides additional detail regarding securities sold under repurchase agreements: Repurchase Agreements (Sweep) Remaining Contractual Maturity of the Agreements Overnight and Continuous At September 30, At December 31, 2024 2023 Repurchase agreements: (In thousands) Collateral securing borrowings: Agency residential MBS $ 22,838 $ 25,669 Corporate securities 420,102 233,947 Total collateral carrying value $ 442,940 $ 259,616 Securities sold under repurchase agreements $ 132,487 $ 58,162 At September 30, 2024, the Company had access to borrowing from the Federal Reserve up to $815,919 thousand based on the collateral pledged at September 30, 2024. The Company repaid Federal Reserve Bank Term Funding Program borrowings in the amount of $200,000 thousand during the third quarter 2024. There were no borrowings from the Federal Reserve Bank or other correspondent banks at September 30, 2024. At September 30, 2024, the Company’s estimated unpledged collateral qualifying debt securities totaled $1,663,673 thousand.

Note 9 - Fair Value Measurement

Note 9 - Fair Value Measurements	9 Months Ended
	Sep. 30, 2024
Notes to Financial Statements
Fair Value Disclosures [Text Block]	Note 9: Fair Value Measurements The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Debt securities available for sale are recorded at fair value on a recurring basis. Additionally, from time to time, the Company may be required to record at fair value other assets on a nonrecurring basis, such as other real estate owned, loans individually evaluated for credit loss, certain loans held for investment, debt securities held to maturity, and other assets. These nonrecurring fair value adjustments typically involve the lower-of-cost or fair-value accounting of individual assets. In accordance with the Fair Value Measurement and Disclosure topic of the FASB Accounting Standards Codification, the Company bases its fair values on the price that would be received to sell an asset or paid to transfer a liability in the principal market or most advantageous market for an asset or liability in an orderly transaction between market participants on the measurement date under current market conditions. A fair value measurement reflects all of the assumptions that market participants would use in pricing the asset or liability, including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset, and the risk of nonperformance. The Company groups its assets and liabilities measured at fair value into a three-level hierarchy, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. When the valuation assumptions used to measure the fair value of the asset or liability are categorized within different levels of the fair value hierarchy, the asset or liability is categorized in its entirety within the lowest level of the hierarchy. These levels are: Level 1 – Valuation is based upon quoted prices for identical instruments traded in active exchange markets, such as the New York Stock Exchange. Level 1 includes U.S. Treasury and equity securities, which are traded by dealers or brokers in active markets. Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities. Level 2 – Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. Level 2 includes mutual funds, federal agency securities, mortgage-backed securities, corporate securities, commercial paper, collateralized loan obligations, municipal bonds and securities of U.S government entities and U.S. government sponsored entities. Level 3 – Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect the Company’s estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques. The Company relies on independent vendor pricing services to measure fair value for equity securities, debt securities available for sale and debt securities held to maturity. The Company employs three pricing services. To validate the pricing of these vendors, the Company compares vendors’ pricing for each of the securities for consistency; significant pricing differences, if any, are evaluated using all available independent quotes with the quote most closely reflecting the market generally used as the fair value estimate. In addition, the Company evaluates debt securities for credit losses on a quarterly basis. As with any valuation technique used to estimate fair value, changes in underlying assumptions used could significantly affect the results of current and future values. Accordingly, these fair value estimates may not be realized in an actual sale of the securities. The Company regularly reviews the valuation techniques and assumptions used by its vendors and determines which valuation techniques are utilized based on observable market inputs for the type of securities being measured. The Company uses the information to determine the placement in the fair value hierarchy as level 1, 2 or 3. Assets Recorded at Fair Value on a Recurring Basis The tables below present assets measured at fair value on a recurring basis on the dates indicated. At September 30, 2024 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (1) (In thousands) Debt securities available for sale: Agency residential MBS $ 227,565 $ - $ 227,565 $ - Securities of U.S. Government sponsored entities 303,609 - 303,609 - U.S. Treasury securities 4,899 4,899 - - Obligations of states and political subdivisions 63,876 - 63,876 - Corporate securities 1,901,617 - 1,901,617 - Collateralized loan obligations 1,078,920 - 1,078,920 - Total debt securities available for sale $ 3,580,486 $ 4,899 $ 3,575,587 $ - (1) There were no transfers into or out of level 3 during the nine months ended September 30, 2024. At December 31, 2023 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (1) (In thousands) Debt securities available for sale: Agency residential MBS $ 239,454 $ - $ 239,454 $ - Securities of U.S. Government sponsored entities 294,919 - 294,919 - Obligations of states and political subdivisions 71,283 - 71,283 - Corporate securities 1,909,548 - 1,909,548 - Collateralized loan obligations 1,484,597 - 1,484,597 - Total debt securities available for sale $ 3,999,801 $ - $ 3,999,801 $ - (1) There were no transfers into or out of level 3 during the year ended December 31, 2023. Assets Recorded at Fair Value on a Nonrecurring Basis The Company may be required, from time to time, to measure certain assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from the application of lower-of-cost or fair-value accounting of individual assets. For assets measured at fair value on a nonrecurring basis that were recorded in the balance sheet at September 30, 2024 and December 31, 2023, the following tables provide the level of valuation assumptions used to determine each adjustment and the carrying value of the related assets at period end. For the Nine Months Ended At September 30, 2024 September 30, 2024 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Loans: Commercial real estate $ 14 $ - $ - $ 14 $ - Total assets measured at fair value on a nonrecurring basis $ 14 $ - $ - $ 14 $ - For the Year Ended At December 31, 2023 December 31, 2023 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Loans: Commercial real estate $ 110 $ - $ - $ 110 $ - Total assets measured at fair value on a nonrecurring basis $ 110 $ - $ - $ 110 $ - Level 3 – Valuation is based upon present value of expected future cash flows, independent market prices, estimated liquidation values of loan collateral or appraised value of the collateral as determined by third-party independent appraisers, less 10% for selling costs, generally. The unobservable inputs and qualitative information about the unobservable inputs are not presented as the inputs were not developed by the Company. Disclosures about Fair Value of Financial Instruments The tables below are a summary of fair value estimates for financial instruments and the level of the fair value hierarchy within which the fair value measurements are categorized, excluding financial instruments recorded at fair value on a recurring basis. The values assigned do not necessarily represent amounts which ultimately may be realized for assets or paid to settle liabilities. In addition, these values do not give effect to adjustments to fair value which may occur when financial instruments are sold or settled in larger quantities. The carrying amounts in the following tables are recorded in the balance sheet under the indicated captions. The Company has not included assets and liabilities that are not financial instruments such as goodwill, long-term relationships with deposit, merchant processing and trust customers, other purchased intangibles, premises and equipment, deferred taxes, and other assets and liabilities. The total estimated fair values do not represent, and should not be construed to represent, the underlying value of the Company. At September 30, 2024 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 502,945 $ 502,945 $ 502,945 $ - $ - Debt securities held to maturity 850,261 837,080 - 837,080 - Loans 818,649 830,515 - - 830,515 Financial Liabilities: Deposits $ 5,065,050 $ 5,060,792 $ - $ 4,978,745 $ 82,047 Securities sold under repurchase agreements 132,487 132,487 - 132,487 At December 31, 2023 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 190,314 $ 190,314 $ 190,314 $ - $ - Debt securities held to maturity 878,396 849,562 - 849,562 - Loans 849,735 847,031 - - 847,031 Financial Liabilities: Deposits $ 5,474,267 $ 5,474,012 $ - $ 5,377,465 $ 96,547 Securities sold under repurchase agreements 58,162 58,162 - 58,162 - The majority of the Company’s standby letters of credit and other commitments to extend credit carry current market interest rates if converted to loans. No premium or discount was ascribed to these commitments because virtually all funding would be at current market rates.

Note 10 - Commitments and Conti

Note 10 - Commitments and Contingent Liabilities	9 Months Ended
	Sep. 30, 2024
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	Note 10: Commitments and Contingent Liabilities Loan commitments are agreements to lend to a customer provided there is no violation of any condition established in the agreement. Certain agreements provide the Company the right to cancel or reduce its obligations to lend to customers. The portions that are not unconditionally cancellable by the Company aggregated $27,956 thousand at September 30, 2024 and $29,958 thousand at December 31, 2023. Commitments generally have fixed expiration dates or other termination clauses. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future funding requirements. Loan commitments are subject to the Company’s normal credit policies and collateral requirements. Unfunded loan commitments were $174,320 thousand at September 30, 2024 and $206,028 thousand at December 31, 2023. Standby letters of credit commit the Company to make payments on behalf of customers when certain specified future events occur. Standby letters of credit are primarily issued to support customers’ short-term financing requirements and must meet the Company’s normal credit policies and collateral requirements. Financial and performance standby letters of credit outstanding totaled $1,961 thousand at September 30, 2024 and $2,044 thousand at December 31, 2023. Commitments for commercial and similar letters of credit totaled $95 thousand at September 30, 2024 and $95 thousand December 31, 2023, respectively. The Company had $1,000 thousand in outstanding full recourse guarantees to a third party credit card company at September 30, 2024 and $1,000 thousand at December 31, 2023, respectively. At September 30, 2024, the Company had a reserve for unfunded commitments of $201 thousand for the above-mentioned loan commitments of $27,956 thousand that are not unconditionally cancellable by the Company. The Company’s reserve for unfunded commitments was $201 thousand at December 31, 2023. The reserve for unfunded commitments is included in other liabilities. Due to the nature of its business, the Company is subject to various threatened or filed legal cases. Based on the advice of legal counsel, the Company does not expect such cases will have a material, adverse effect on its financial position or results of operations. Legal liabilities are accrued when obligations become probable and the amount can be reasonably estimated.

Note 11 - Earnings Per Common S

Note 11 - Earnings Per Common Share	9 Months Ended
	Sep. 30, 2024
Notes to Financial Statements
Earnings Per Share [Text Block]	Note 11: Earnings Per Common Share The table below shows earnings per common share and diluted earnings per common share. Basic earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period. Diluted earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period plus the impact of common stock equivalents. For the Three Months For the Nine Months Ended September 30, 2024 2023 2024 2023 (In thousands, except per share data) Net income applicable to common equity (numerator) $ 35,057 $ 41,601 $ 106,936 $ 122,300 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 26,685 26,648 26,680 26,718 Basic earnings per common share $ 1.31 $ 1.56 $ 4.01 $ 4.58 Diluted earnings per common share Weighted average number of common shares outstanding - basic 26,685 26,648 26,680 26,718 Add common stock equivalents for options 1 2 1 3 Weighted average number of common shares outstanding - diluted (denominator) 26,686 26,650 26,681 26,721 Diluted earnings per common share $ 1.31 $ 1.56 $ 4.01 $ 4.58 For the three and nine months ended September 30, 2024, options to purchase 1,068 thousand and 1,093 thousand shares of common stock, respectively, were outstanding but not included in the computation of diluted earnings per common share because the option exercise price exceeded the fair value of the stock such that their inclusion would have had an anti-dilutive effect. For the three and nine months ended September 30, 2023, options to purchase 964 thousand and 991 thousand shares of common stock, respectively, were outstanding but not included in the computation of diluted earnings per common share because the option exercise price exceeded the fair value of the stock such that their inclusion would have had an anti-dilutive effect. [The remainder of this page intentionally left blank]

Insider Trading Arrangements

Insider Trading Arrangements	9 Months Ended
	Sep. 30, 2024
Insider Trading Arr Line Items
Material Terms of Trading Arrangement [Text Block]	Rule 10b5-1 Trading Plans During the quarter ended September 30, 2024, none
Non-Rule 10b5-1 Arrangement Terminated [Flag]	false
Rule 10b5-1 Arrangement Terminated [Flag]	false
Non-Rule 10b5-1 Arrangement Adopted [Flag]	false
Rule 10b5-1 Arrangement Adopted [Flag]	false

Significant Accounting Policies

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Marketable Securities, Policy [Policy Text Block]	Debt Securities. Debt securities consist of securities of government sponsored entities, states, counties, municipalities, corporations, agency mortgage-backed securities and collateralized loan obligations. Securities transactions are recorded on a trade date basis. The Company classifies its debt securities in one of three categories: trading, available for sale or held to maturity. Trading securities are bought and held principally for the purpose of selling them in the near term. Trading securities are recorded at fair value with unrealized gains and losses included in net income. Held to maturity debt securities are those securities which the Company has the ability and intent to hold until maturity. Held to maturity debt securities are recorded at cost, adjusted for the amortization of premiums or accretion of discounts. Securities not included in trading or held to maturity are classified as available for sale debt securities. Available for sale debt securities are recorded at fair value. Unrealized gains and losses, net of the related tax effect, on available for sale debt securities are included in accumulated other comprehensive income. Accrued interest is recorded within other assets and reversed against interest income if it is not received. The Company utilizes third-party sources to value its investment securities; securities individually valued using quoted prices in active markets are classified as Level 1 assets in the fair value hierarchy, and securities valued using quoted prices in active markets for similar securities (commonly referred to as “matrix” pricing) are classified as Level 2 assets in the fair value hierarchy. The Company validates the reliability of third-party provided values by comparing individual security pricing for securities between more than one third-party source. When third-party information is not available, valuation adjustments are estimated in good faith by Management and classified as Level 3 in the fair value hierarchy. The Company follows the guidance issued by the Board of Governors of the Federal Reserve System, “Investing in Securities without Reliance on Nationally Recognized Statistical Rating Agencies” (SR 12-15) and other regulatory guidance when performing investment security pre-purchase analysis or evaluating investment securities for credit loss. Credit ratings issued by recognized rating agencies are considered in the Company’s analysis only as a guide to the historical default rate associated with similarly-rated bonds. To the extent that debt securities in the held-to-maturity portfolio share common risk characteristics, estimated expected credit losses are calculated in a manner like that used for loans held for investment. That is, for pools of such securities with common risk characteristics, the historical lifetime probability of default and severity of loss in the event of default is derived or obtained from external sources and adjusted for the expected effects of reasonable and supportable forecasts over the expected lives of the securities on those historical credit losses. Expected credit loss on each security in the held-to-maturity portfolio that does not share common risk characteristics with any of the pools of debt securities is individually evaluated and a reserve for credit losses is established based on the Company’s consideration of the history of credit losses, current conditions and reasonable and supportable forecasts, which may indicate that the expectation that nonpayment of the amortized cost basis is or continues to be zero. Therefore, for those securities, the Company does not record expected credit losses. Available for sale debt securities in unrealized loss positions are evaluated for credit related loss at least quarterly. For available for sale debt securities, a decline in fair value due to credit loss results in recording an allowance for credit losses to the extent the fair value is less than the amortized cost basis. Declines in fair value that have not been recorded through an allowance for credit losses, such as declines due to changes in market interest rates, are recorded through other comprehensive income, net of applicable taxes. Although these evaluations involve significant judgment, an unrealized loss in the fair value of a debt security is generally considered to not be related to credit when the fair value of the security is below the carrying value primarily due to changes in risk-free interest rates, there has not been significant deterioration in the financial condition of the issuer, and the Company does not intend to sell nor does it believe it will be required to sell the security before the recovery of its cost basis. If the Company intends to sell a debt security or more likely than not will be required to sell the security before recovery of its amortized cost basis, the debt security is written down to its fair value and the write down is charged against the allowance for credit losses with any incremental loss reported in earnings. Purchase premiums are amortized to the earliest call date and purchase discounts are amortized to maturity as an adjustment to yield using the effective interest method. Unamortized premiums, unaccreted discounts, and early payment premiums are recognized as a component of gain or loss on sale upon disposition of the related security. Interest and dividend income are recognized when earned. Realized gains and losses from the sale of available for sale debt securities are included in earnings using the specific identification method.
Equity Securities without Readily Determinable Fair Value [Policy Text Block]	Nonmarketable Equity Securities. Nonmarketable equity securities include securities that are not publicly traded, such as Visa Class B-1 common stock, and securities acquired to meet regulatory requirements, such as Federal Reserve Bank stock, which are restricted. These restricted securities are accounted for under the cost method and are included in other assets. The Company reviews those assets accounted for under the cost method at least quarterly. The Company’s review typically includes an analysis of the facts and circumstances of each investment, the expectations for the investment’s cash flows and capital needs, the viability of its business model and any exit strategy. When the review indicates that impairment exists the asset value is reduced to fair value. The Company recognizes the estimated loss in noninterest income. See Note 6 to the unaudited consolidated financial statements for additional information related to nonmarketable equity securities.
Financing Receivable [Policy Text Block]	Loans. Loans are stated at the principal amount outstanding, net of unearned discount and unamortized deferred fees and costs. Interest is accrued daily on the outstanding principal balances and included in other assets. Loans which are more than 90 days delinquent with respect to interest or principal, unless they are well secured and in the process of collection, and other loans on which full recovery of principal or interest is in doubt, are placed on nonaccrual status. Interest previously accrued on loans placed on nonaccrual status is charged against interest income. In addition, some loans secured by real estate and commercial loans to borrowers experiencing financial difficulties are placed on nonaccrual status even though the borrowers continue to repay the loans as scheduled. When the ability to fully collect nonaccrual loan principal is in doubt, payments received are applied against the principal balance of the loans on a cost-recovery method until such time as full collection of the remaining recorded balance is expected. Any additional interest payments received after that time are recorded as interest income on a cash basis. Nonaccrual loans are reinstated to accrual status when none of the loan’s principal and interest is past due and improvements in credit quality eliminate doubt as to the full collectability of both principal and interest, or the loan otherwise becomes well secured and in the process of collection. Certain consumer loans or auto receivables are charged off against the allowance for credit losses when they become 120 days past due.
Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]	Allowance for Credit Losses. The Company extends loans to commercial and consumer customers primarily in Northern and Central California. These lending activities expose the Company to the risk borrowers will default, causing loan losses. The Company’s lending activities are exposed to various qualitative risks. All loan segments are exposed to risks inherent in the economy and market conditions. Significant risk characteristics related to the commercial loan segment include the borrowers’ business performance and financial condition, and the value of collateral for secured loans. Significant risk characteristics related to the commercial real estate segment include the borrowers’ business performance and the value of properties collateralizing the loans. Significant risk characteristics related to the construction loan segment include the borrowers’ performance in successfully developing the real estate into the intended purpose and the value of the property collateralizing the loans. Significant risk characteristics related to the residential real estate segment include the borrowers’ financial wherewithal to service the mortgages and the value of the property collateralizing the loans. Significant risk characteristics related to the consumer loan segment include the financial condition of the borrowers and the value of collateral securing the loans. The preparation of the financial statements requires Management to estimate the amount of expected losses over the expected contractual life of the Bank’s existing loan portfolio and establish an allowance for credit losses. Loan agreements generally include a maturity date, and the Company considers the contractual life of a loan agreement to extend from the date of origination to the contractual maturity date. In estimating credit losses, Management must exercise significant judgment in evaluating information deemed relevant. The amount of ultimate losses on the loan portfolio can vary from the estimated amounts. Management follows a systematic methodology to estimate loss potential in an effort to reduce the differences between estimated and actual losses. The allowance for credit losses is established through provisions for credit losses charged to income. Losses on loans are charged to the allowance for credit losses when all or a portion of the recorded amount of a loan is deemed to be uncollectible. Recoveries of loans previously charged off are credited to the allowance when realized. The Company’s allowance for credit losses is maintained at a level considered adequate to provide for expected losses based on historical loss rates adjusted for current and expected conditions over a forecast period. These include conditions unique to individual borrowers, as well as overall credit loss experience, the amount of past due, nonperforming and classified loans, recommendations of regulatory authorities, prevailing economic conditions, or credit protection agreements and other factors. Loans that share common risk characteristics are segregated into pools based on common characteristics, which is primarily determined by loan, borrower, or collateral type. Historical loss rates are determined for each pool. For consumer installment loans, primarily secured by automobiles, historical loss rates are determined using a vintage methodology, which tracks losses based on period of origination. For commercial, construction, and commercial real estate, historical loss rates are determined using an open pool methodology where losses are tracked over time for all loans included in the pool at the historical measurement date. Historical loss rates are adjusted for factors that are not reflected in the historical loss rates that are attributable to national or local economic or industry trends which have occurred but have not yet been recognized in past loan charge-off history, estimated losses based on management’s reasonable and supportable expectation of economic trends over a forecast horizon of up to two years, and other factors that impact credit loss expectations that are not reflected in the historical loss rates. Other factors include, but are not limited to, the effectiveness of the Company’s loan review system, adequacy of lending Management and staff, loan policies and procedures, problem loan trends, and concentrations of credit. At the end of the two-year forecast period loss rates revert immediately to the historical loss rates. The results of this analysis are applied to the amortized cost of the loans included within each pool. Loans that do not share risk characteristics with other loans in the pools are evaluated individually. A loan is considered ‘collateral-dependent’ when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. A credit loss reserve for collateral-dependent loans is established at the difference between the amortized cost basis in the loan and the fair value of the underlying collateral adjusted for costs to sell. For other individually evaluated loans that are not collateral dependent, a credit loss reserve is established at the difference between the amortized cost basis in the loan and the present value of expected future cash flows discounted at the loan’s effective interest rate. The impact of an expected modification to be made to loans to borrowers experiencing financial difficulty is included in the allowance for credit losses when management determines such modification is likely. Accrued interest is recorded in other assets and is excluded from the estimation of expected credit loss. Accrued interest is reversed through interest income when amounts are determined to be uncollectible, which generally occurs when the underlying receivable is placed on nonaccrual status or charged off.
Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block]	Liability for Off-Balance Sheet Credit Exposures. Off-balance sheet credit exposures relate to letters of credit and unfunded loan commitments for commercial, construction and consumer loans. The Company maintains a separate allowance for credit losses from off-balance sheet credit exposures, which is included within other liabilities on the consolidated statements of financial condition. Increases or reductions to the Company’s allowance for credit losses from off-balance sheet credit exposures are recorded in other expenses. Management estimates the amount of expected losses by estimating expected usage exposures that are not unconditionally cancellable by the Company and applying the loss factors used in the allowance for credit loss methodology to estimate the liability for credit losses related to unfunded commitments. No credit loss estimate is reported for off-balance sheet credit exposures that are unconditionally cancellable by the Company or for undrawn amounts under such arrangements that may be drawn prior to the cancellation of the arrangement.
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Standards FASB ASU 2020-04 Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848. FASB ASU 2022-03 Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions Recently Issued Accounting Standards FASB ASU 2023-09 Income Taxes (Topic 740): Improvements to Income Tax Disclosures FASB ASU 2023-07 Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures

Note 3 - Investment Securities

Note 3 - Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2024
Notes Tables
Debt Securities, Available-for-sale and Held-to-maturity [Table Text Block]	At September 30, 2024 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale: Agency residential mortgage-backed securities ("MBS") $ 240,374 $ 162 $ (12,971 ) $ 227,565 Securities of U.S. Government sponsored entities 310,593 119 (7,103 ) 303,609 U.S. Treasury Securities 4,883 16 - 4,899 Obligations of states and political subdivisions 65,001 30 (1,155 ) 63,876 Corporate securities 2,057,115 295 (155,793 ) 1,901,617 Collateralized loan obligations 1,083,752 1,943 (6,775 ) 1,078,920 Total debt securities available for sale 3,761,718 2,565 (183,797 ) 3,580,486 Debt securities held to maturity: Agency residential MBS 62,745 26 (3,336 ) 59,435 Obligations of states and political subdivisions 53,769 33 (157 ) 53,645 Corporate securities 733,748 1,911 (11,659 ) 724,000 Total debt securities held to maturity 850,262 1,970 (15,152 ) 837,080 Total $ 4,611,980 $ 4,535 $ (198,949 ) $ 4,417,566 At December 31, 2023 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale: Agency residential MBS $ 258,150 $ 6 $ (18,702 ) $ 239,454 Securities of U.S. Government sponsored entities 308,768 2 (13,851 ) 294,919 Obligations of states and political subdivisions 72,679 42 (1,438 ) 71,283 Corporate securities 2,129,103 480 (220,035 ) 1,909,548 Collateralized loan obligations 1,501,248 830 (17,481 ) 1,484,597 Total debt securities available for sale 4,269,948 1,360 (271,507 ) 3,999,801 Debt securities held to maturity: Agency residential MBS 78,565 17 (5,270 ) 73,312 Obligations of states and political subdivisions 71,182 47 (335 ) 70,894 Corporate securities 728,650 84 (23,378 ) 705,356 Total debt securities held to maturity 878,397 148 (28,983 ) 849,562 Total $ 5,148,345 $ 1,508 $ (300,490 ) $ 4,849,363
Investments Classified by Contractual Maturity Date [Table Text Block]	At September 30, 2024 Debt Securities Available Debt Securities Held for Sale to Maturity Amortized Fair Amortized Fair Cost Value Cost Value (In thousands) Maturity in years: 1 year or less $ 124,819 $ 124,367 $ 9,959 $ 9,940 Over 1 to 5 years 923,013 890,059 352,871 353,249 Over 5 to 10 years 1,389,760 1,259,575 424,687 414,456 Subtotal 2,437,592 2,274,001 787,517 777,645 Collateralized loan obligations 1,083,752 1,078,920 - - Agency residential MBS 240,374 227,565 62,745 59,435 Total $ 3,761,718 $ 3,580,486 $ 850,262 $ 837,080 At December 31, 2023 Debt Securities Available Debt Securities Held for Sale to Maturity Amortized Fair Amortized Fair Cost Value Cost Value (In thousands) Maturity in years: 1 year or less $ 52,703 $ 52,357 $ 15,117 $ 15,095 Over 1 to 5 years 756,658 721,179 312,847 307,557 Over 5 to 10 years 1,701,189 1,502,214 471,868 453,598 Subtotal 2,510,550 2,275,750 799,832 776,250 Collateralized loan obligations 1,501,248 1,484,597 - - Agency residential MBS 258,150 239,454 78,565 73,312 Total $ 4,269,948 $ 3,999,801 $ 878,397 $ 849,562
Schedule of Unrealized Loss on Investments 1 [Table Text Block]	Debt Securities Available for Sale At September 30, 2024 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrealized Investment Unrealized Investment Unrealized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 3 $ 5,141 $ (39 ) 102 $ 208,765 $ (12,932 ) 105 $ 213,906 $ (12,971 ) Securities of U.S. - - - 19 286,796 (7,103 ) 19 286,796 (7,103 ) Obligations of states - - - 40 52,472 (1,155 ) 40 52,472 (1,155 ) Corporate securities - - - 140 1,877,015 (155,793 ) 140 1,877,015 (155,793 ) Collateralized loan 6 64,655 (90 ) 40 411,655 (6,685 ) 46 476,310 (6,775 ) Total 9 $ 69,796 $ (129 ) 341 $ 2,836,703 $ (183,668 ) 350 $ 2,906,499 $ (183,797 ) Debt Securities Held to Maturity At September 30, 2024 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrecognized Investment Unrecognized Investment Unrecognized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS - $ - $ - 80 $ 58,401 $ (3,336 ) 80 $ 58,401 $ (3,336 ) Obligations of states 5 1,214 (1 ) 26 26,008 (156 ) 31 27,222 (157 ) Corporate securities - - - 34 466,729 (11,659 ) 34 466,729 (11,659 ) Total 5 $ 1,214 $ (1 ) 140 $ 551,138 $ (15,151 ) 145 $ 552,352 $ (15,152 ) Debt Securities Available for Sale At December 31, 2023 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrealized Investment Unrealized Investment Unrealized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 1 $ 115 $ (2 ) 107 $ 238,642 $ (18,700 ) 108 $ 238,757 $ (18,702 ) Securities of U.S. 2 9,746 (15 ) 19 278,265 (13,836 ) 21 288,011 (13,851 ) Obligations of states 2 2,280 (15 ) 50 57,614 (1,423 ) 52 59,894 (1,438 ) Corporate securities - - - 151 1,894,602 (220,035 ) 151 1,894,602 (220,035 ) Collateralized loan 34 428,363 (8,914 ) 67 578,643 (8,567 ) 101 1,007,006 (17,481 ) Total 39 $ 440,504 $ (8,946 ) 394 $ 3,047,766 $ (262,561 ) 433 $ 3,488,270 $ (271,507 ) Debt Securities Held to Maturity At December 31, 2023 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrecognized Investment Unrecognized Investment Unrecognized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 1 $ - $ - 93 $ 72,376 $ (5,270 ) 94 $ 72,376 $ (5,270 ) Obligations of states 23 18,599 (90 ) 26 25,466 (245 ) 49 44,065 (335 ) Corporate securities 3 26,567 (1,184 ) 46 641,598 (22,194 ) 49 668,165 (23,378 ) Total 27 $ 45,166 $ (1,274 ) 165 $ 739,440 $ (27,709 ) 192 $ 784,606 $ (28,983 )
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Table Text Block]	For the Nine Months Ended September 30, 2024 2023 (In thousands) Allowance for credit losses: Beginning balance $ 1 $ 1 Provision - - Chargeoffs - - Recoveries - - Total ending balance $ 1 $ 1
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table Text Block]	Credit Risk Profile by Credit Rating At September 30, 2024 AAA/AA/A BBB+/BBB Not Rated Total (In thousands) Agency residential MBS $ 62,247 $ - $ 498 $ 62,745 Obligations of states and political subdivisions 53,769 - - 53,769 Corporate securities 558,223 175,525 - 733,748 Total $ 674,239 $ 175,525 $ 498 $ 850,262
Interest Income from Investments [Table Text Block]	For the Three Months For the Nine Months Ended September 30, 2024 2023 2024 2023 (In thousands) Taxable $ 48,699 $ 55,911 $ 154,648 $ 166,031 Tax-exempt from federal income tax 892 1,083 2,839 3,439 Total interest income from investment securities $ 49,591 $ 56,994 $ 157,487 $ 169,470

Note 4 - Loans, Allowance for_2

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned (Tables)	9 Months Ended
	Sep. 30, 2024
Notes Tables
Schedule of Loans Receivable [Table Text Block]	At September 30, At December 31, 2024 2023 (In thousands) Commercial $ 130,096 $ 136,550 Commercial real estate 503,561 487,523 Construction 5,064 5,063 Residential real estate 8,813 9,935 Consumer installment & other 186,433 227,531 Total $ 833,967 $ 866,602
Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]	Allowance for Credit Losses For the Three Months Ended September 30, 2024 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 3,896 $ 5,922 $ 243 $ 24 $ 5,867 $ 15,952 Provision (reversal) 182 100 3 (2 ) (283 ) - Chargeoffs (109 ) - - - (1,549 ) (1,658 ) Recoveries 41 14 - - 969 1,024 Total allowance for credit losses $ 4,010 $ 6,036 $ 246 $ 22 $ 5,004 $ 15,318 Allowance for Credit Losses For the Nine Months Ended September 30, 2024 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 4,216 $ 5,925 $ 245 $ 26 $ 6,455 $ 16,867 (Reversal) provision (133 ) (80 ) 1 (4 ) 516 300 Chargeoffs (137 ) - - - (5,065 ) (5,202 ) Recoveries 64 191 - - 3,098 3,353 Total allowance for credit losses $ 4,010 $ 6,036 $ 246 $ 22 $ 5,004 $ 15,318 Allowance for Credit Losses For the Three Months Ended September 30, 2023 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 4,764 $ 6,083 $ 202 $ 32 $ 7,399 $ 18,480 (Reversal) provision (345 ) (194 ) 40 (6 ) 905 400 Chargeoffs (262 ) - - - (1,827 ) (2,089 ) Recoveries 10 15 - - 928 953 Total allowance for credit losses $ 4,167 $ 5,904 $ 242 $ 26 $ 7,405 $ 17,744 Allowance for Credit Losses For the Nine Months Ended September 30, 2023 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 6,138 $ 5,888 $ 150 $ 32 $ 8,076 $ 20,284 (Reversal) provision (3,755 ) (29 ) 92 (6 ) 2,548 (1,150 ) Chargeoffs (410 ) - - - (5,379 ) (5,789 ) Recoveries 2,194 45 - - 2,160 4,399 Total allowance for credit losses $ 4,167 $ 5,904 $ 242 $ 26 $ 7,405 $ 17,744
Financing Receivable Credit Quality Indicators [Table Text Block]	Credit Risk Profile by Internally Assigned Grade At September 30, 2024 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 123,277 $ 492,369 $ - $ 8,515 $ 183,490 $ 807,651 Substandard 6,819 11,192 5,064 298 1,727 25,100 Doubtful - - - - 509 509 Loss - - - - 707 707 Total $ 130,096 $ 503,561 $ 5,064 $ 8,813 $ 186,433 $ 833,967 Credit Risk Profile by Internally Assigned Grade At December 31, 2023 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 130,001 $ 475,870 $ 5,063 $ 9,606 $ 225,089 $ 845,629 Substandard 6,549 11,653 - 329 377 18,908 Doubtful - - - - 1,479 1,479 Loss - - - - 586 586 Total $ 136,550 $ 487,523 $ 5,063 $ 9,935 $ 227,531 $ 866,602
Financing Receivable, Past Due [Table Text Block]	Summary of Loans by Delinquency and Nonaccrual Status At September 30, 2024 Current and Accruing 30-59 Days Past Due and Accruing 60-89 Days Past Due and Accruing Past Due 90 Days or More and Accruing Nonaccrual Total Loans (In thousands) Commercial $ 129,899 $ 89 $ 48 $ - $ 60 $ 130,096 Commercial real estate 502,930 439 - - 192 503,561 Construction 5,064 - - - - 5,064 Residential real estate 8,813 - - - - 8,813 Consumer installment and other 180,950 3,946 870 667 - 186,433 Total $ 827,656 $ 4,474 $ 918 $ 667 $ 252 $ 833,967 Summary of Loans by Delinquency and Nonaccrual Status At December 31, 2023 Current and Accruing 30-59 Days Past Due and Accruing 60-89 Days Past Due and Accruing Past Due 90 Days or More and Accruing Nonaccrual Total Loans (In thousands) Commercial $ 136,421 $ 58 $ - $ - $ 71 $ 136,550 Commercial real estate 485,476 951 766 - 330 487,523 Construction 5,063 - - - - 5,063 Residential real estate 9,933 - - - 2 9,935 Consumer installment and other 220,357 5,544 1,242 388 - 227,531 Total $ 857,250 $ 6,553 $ 2,008 $ 388 $ 403 $ 866,602
Financing Receivable, Loans by Risk Category [Table Text Block]	At September 30, 2024 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2020 2021 2022 2023 2024 Term Loans Cost Basis Total (In thousands) Commercial loans by grade: Pass $ 19,923 $ 9,406 $ 20,684 $ 13,350 $ 16,195 $ 16,969 $ 96,527 $ 26,750 $ 123,277 Substandard 2,672 - 2,835 - - - 5,507 1,312 6,819 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 22,595 $ 9,406 $ 23,519 $ 13,350 $ 16,195 $ 16,969 $ 102,034 $ 28,062 $ 130,096 Current gross chargeoffs on commercial loans: For the three months ended September 30, 2024 $ - $ - $ - $ - $ - $ - $ - $ 109 $ 109 For the nine months ended September 30, 2024 - - - - - - - 137 137 At December 31, 2023 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2019 2020 2021 2022 2023 Term Loans Cost Basis Total (In thousands) Commercial loans by grade: Pass $ 20,554 $ 4,471 $ 12,601 $ 31,770 $ 22,146 $ 13,112 $ 104,654 $ 25,347 $ 130,001 Substandard 12 2,492 - 2,835 - - 5,339 1,210 6,549 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 20,566 $ 6,963 $ 12,601 $ 34,605 $ 22,146 $ 13,112 $ 109,993 $ 26,557 $ 136,550 Current gross chargeoffs on commercial loans: For the year ended December 31, 2023 $ - $ - $ 3 $ 135 $ - $ - $ 138 $ 272 $ 410 At September 30, 2024 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2020 2021 2022 2023 2024 Term Loans Cost Basis Total (In thousands) Commercial real estate loans by grade: Pass $ 215,780 $ 66,206 $ 64,703 $ 49,590 $ 43,371 $ 52,719 $ 492,369 $ - $ 492,369 Substandard 10,216 976 - - - - 11,192 - 11,192 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 225,996 $ 67,182 $ 64,703 $ 49,590 $ 43,371 $ 52,719 $ 503,561 $ - $ 503,561 Current gross chargeoffs on commercial real estate loans: For the three months ended September 30, 2024 $ - $ - $ - $ - $ - $ - $ - $ - $ - For the nine months ended September 30, 2024 - - - - - - - - - At December 31, 2023 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2019 2020 2021 2022 2023 Term Loans Cost Basis Total (In thousands) Commercial real estate loans by grade: Pass $ 172,925 $ 68,156 $ 69,324 $ 68,891 $ 50,899 $ 45,675 $ 475,870 $ - $ 475,870 Substandard 10,056 811 786 - - - 11,653 - 11,653 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 182,981 $ 68,967 $ 70,110 $ 68,891 $ 50,899 $ 45,675 $ 487,523 $ - $ 487,523 Current gross chargeoffs on commercial real estate loans: For the year ended December 31, 2023 $ 45 $ - $ - $ - $ - $ - $ 45 $ - $ 45 At September 30, 2024 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2020 2021 2022 2023 2024 Term Loans Cost Basis Total (In thousands) Residential real estate loans by grade: Pass $ 8,515 $ - $ - $ - $ - $ - $ 8,515 $ - $ 8,515 Substandard 298 - - - - - 298 - 298 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 8,813 $ - $ - $ - $ - $ - $ 8,813 $ - $ 8,813 Current gross chargeoffs on residential real estate loans: For the three months ended September 30, 2024 $ - $ - $ - $ - $ - $ - $ - $ - $ - For the nine months ended September 30, 2024 - - - - - - - - - At December 31, 2023 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2019 2020 2021 2022 2023 Term Loans Cost Basis Total (In thousands) Residential real estate loans by grade: Pass $ 9,606 $ - $ - $ - $ - $ - $ 9,606 $ - $ 9,606 Substandard 329 - - - - - 329 - 329 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 9,935 $ - $ - $ - $ - $ - $ 9,935 $ - $ 9,935 Current gross chargeoffs on residential real estate loans: For the year ended December 31, 2023 $ - $ - $ - $ - $ - $ - $ - $ - $ - At September 30, 2024 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2020 2021 2022 2023 2024 Term Loans Cost Basis Total (In thousands) Construction loans by grade: Pass $ - $ - $ - $ - $ - $ - $ - $ - $ - Substandard - - - - - - - 5,064 5,064 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ - $ - $ - $ - $ - $ - $ - $ 5,064 $ 5,064 Current gross chargeoffs on construction loans: For the three months ended September 30, 2024 $ - $ - $ - $ - $ - $ - $ - $ - $ - For the nine months ended September 30, 2024 - - - - - - - - - At December 31, 2023 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2019 2020 2021 2022 2023 Term Loans Cost Basis Total (In thousands) Construction loans by grade: Pass $ - $ - $ - $ - $ - $ - $ - $ 5,063 $ 5,063 Substandard - - - - - - - - - Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ - $ - $ - $ - $ - $ - $ - $ 5,063 $ 5,063 Current gross chargeoffs on construction loans: For the year ended December 31, 2023 $ - $ - $ - $ - $ - $ - $ - $ - $ - At September 30, 2024 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2020 2021 2022 2023 2024 Term Loans Cost Basis Total (In thousands) Consumer installment and other loans by delinquency and nonaccrual status: Current $ 8,360 $ 14,762 $ 36,249 $ 54,464 $ 29,550 $ 21,908 $ 165,293 $ 15,657 $ 180,950 30-59 days past due 217 294 1,682 1,206 346 169 3,914 32 3,946 60-89 days past due 17 20 142 385 87 16 667 203 870 Past due 90 days or more 37 70 301 51 99 103 661 6 667 Nonaccrual - - - - - - - - - Total $ 8,631 $ 15,146 $ 38,374 $ 56,106 $ 30,082 $ 22,196 $ 170,535 $ 15,898 $ 186,433 Current gross chargeoffs on consumer installment and other loans: For the three months ended September 30, 2024 $ 62 $ 61 $ 553 $ 296 $ 326 $ 11 $ 1,309 $ 240 $ 1,549 For the nine months ended September 30, 2024 241 327 1,935 1,403 778 11 4,695 370 5,065 At December 31, 2023 Line of Credit Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2019 2020 2021 2022 2023 Term Loans Cost Basis Total (In thousands) Consumer installment and other loans by delinquency and nonaccrual status: Current $ 6,545 $ 12,144 $ 22,700 $ 51,055 $ 71,388 $ 38,699 $ 202,531 $ 17,826 $ 220,357 30-59 days past due 160 277 600 2,345 1,733 332 5,447 97 5,544 60-89 days past due 31 51 153 410 430 122 1,197 45 1,242 Past due 90 days or more - 8 88 143 138 - 377 11 388 Nonaccrual - - - - - - - - - Total $ 6,736 $ 12,480 $ 23,541 $ 53,953 $ 73,689 $ 39,153 $ 209,552 $ 17,979 $ 227,531 Current gross chargeoffs on consumer installment and other loans: For the year ended December 31, 2023 $ 246 $ 161 $ 843 $ 2,329 $ 3,191 $ 453 $ 7,223 $ 276 $ 7,499

Note 6 - Other Assets and Oth_2

Note 6 - Other Assets and Other Liabilities (Tables)	9 Months Ended
	Sep. 30, 2024
Notes Tables
Schedule of Other Assets [Table Text Block]	At September 30, At December 31, 2024 2023 (In thousands) Cost method equity investments: Federal Reserve Bank stock (1) $ 14,069 $ 14,069 Other investments 158 158 Total cost method equity investments 14,227 14,227 Life insurance cash surrender value 67,888 66,611 Net deferred tax asset 72,916 99,507 Right-of-use asset 18,953 18,814 Limited partnership investments 24,577 28,667 Interest receivable 48,127 54,568 Prepaid assets 4,613 5,200 Other assets 9,521 9,716 Total other assets $ 260,822 $ 297,310
Schedule of Amounts Recognized in Net Income [Table Text Block]	For the Three Months Ended For the Nine Months Ended September 30, 2024 2023 2024 2023 (In thousands) Investment loss included in pre-tax income $ 1,210 $ 1,440 $ 4,090 $ 4,314 Tax credits recognized in provision for income taxes 785 765 2,735 2,820
Other Liabilities [Table Text Block]	At September 30, At December 31, 2024 2023 (In thousands) Operating lease liability $ 18,953 $ 18,814 Other liabilities 35,613 40,455 Total other liabilities $ 54,566 $ 59,269
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]	Minimum At September 30, 2024 (In thousands) The remainder of 2024 $ 1,627 2025 6,082 2026 4,453 2027 3,578 2028 2,845 Thereafter 1,734 Total minimum lease payments 20,319 Less: discount (1,366 ) Present value of lease liability $ 18,953

Note 7 - Goodwill and Identif_2

Note 7 - Goodwill and Identifiable Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2024
Notes Tables
Schedule of Goodwill [Table Text Block]	At September 30, 2024 At December 31, 2023 (In thousands) Goodwill $ 121,673 $ 121,673
Schedule of Finite-Lived Intangible Assets [Table Text Block]	At September 30, 2024 At December 31, 2023 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization (In thousands) Core deposit intangibles $ 56,808 $ (56,630 ) $ 56,808 $ (56,461 )
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Total Core Deposit Intangibles (In thousands) For the nine months ended September 30, 2024 (actual) $ 169 The remainder of 2024 53 2025 125

Note 8 - Deposits and Borrowe_2

Note 8 - Deposits and Borrowed Funds (Tables)	9 Months Ended
	Sep. 30, 2024
Notes Tables
Deposit Liabilities, Type [Table Text Block]	Deposits At September 30, At December 31, 2024 2023 (In thousands) Noninterest-bearing $ 2,375,958 $ 2,605,844 Interest-bearing: Transaction 925,455 1,072,233 Savings 1,677,332 1,699,388 Time deposits less than $100 thousand 50,030 56,100 Time deposits $100 thousand through $250 thousand 26,005 31,107 Time deposits more than $250 thousand 10,270 9,595 Total deposits $ 5,065,050 $ 5,474,267
Schedule of Repurchase Agreements [Table Text Block]	Repurchase Agreements (Sweep) Remaining Contractual Maturity of the Agreements Overnight and Continuous At September 30, At December 31, 2024 2023 Repurchase agreements: (In thousands) Collateral securing borrowings: Agency residential MBS $ 22,838 $ 25,669 Corporate securities 420,102 233,947 Total collateral carrying value $ 442,940 $ 259,616 Securities sold under repurchase agreements $ 132,487 $ 58,162

Note 9 - Fair Value Measureme_2

Note 9 - Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2024
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	At September 30, 2024 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (1) (In thousands) Debt securities available for sale: Agency residential MBS $ 227,565 $ - $ 227,565 $ - Securities of U.S. Government sponsored entities 303,609 - 303,609 - U.S. Treasury securities 4,899 4,899 - - Obligations of states and political subdivisions 63,876 - 63,876 - Corporate securities 1,901,617 - 1,901,617 - Collateralized loan obligations 1,078,920 - 1,078,920 - Total debt securities available for sale $ 3,580,486 $ 4,899 $ 3,575,587 $ - At December 31, 2023 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (1) (In thousands) Debt securities available for sale: Agency residential MBS $ 239,454 $ - $ 239,454 $ - Securities of U.S. Government sponsored entities 294,919 - 294,919 - Obligations of states and political subdivisions 71,283 - 71,283 - Corporate securities 1,909,548 - 1,909,548 - Collateralized loan obligations 1,484,597 - 1,484,597 - Total debt securities available for sale $ 3,999,801 $ - $ 3,999,801 $ -
Fair Value Measurements, Nonrecurring [Table Text Block]	For the Nine Months Ended At September 30, 2024 September 30, 2024 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Loans: Commercial real estate $ 14 $ - $ - $ 14 $ - Total assets measured at fair value on a nonrecurring basis $ 14 $ - $ - $ 14 $ - For the Year Ended At December 31, 2023 December 31, 2023 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Loans: Commercial real estate $ 110 $ - $ - $ 110 $ - Total assets measured at fair value on a nonrecurring basis $ 110 $ - $ - $ 110 $ -
Fair Value, by Balance Sheet Grouping [Table Text Block]	At September 30, 2024 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 502,945 $ 502,945 $ 502,945 $ - $ - Debt securities held to maturity 850,261 837,080 - 837,080 - Loans 818,649 830,515 - - 830,515 Financial Liabilities: Deposits $ 5,065,050 $ 5,060,792 $ - $ 4,978,745 $ 82,047 Securities sold under repurchase agreements 132,487 132,487 - 132,487 At December 31, 2023 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 190,314 $ 190,314 $ 190,314 $ - $ - Debt securities held to maturity 878,396 849,562 - 849,562 - Loans 849,735 847,031 - - 847,031 Financial Liabilities: Deposits $ 5,474,267 $ 5,474,012 $ - $ 5,377,465 $ 96,547 Securities sold under repurchase agreements 58,162 58,162 - 58,162 -

Note 11 - Earnings Per Common_2

Note 11 - Earnings Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2024
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	For the Three Months For the Nine Months Ended September 30, 2024 2023 2024 2023 (In thousands, except per share data) Net income applicable to common equity (numerator) $ 35,057 $ 41,601 $ 106,936 $ 122,300 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 26,685 26,648 26,680 26,718 Basic earnings per common share $ 1.31 $ 1.56 $ 4.01 $ 4.58 Diluted earnings per common share Weighted average number of common shares outstanding - basic 26,685 26,648 26,680 26,718 Add common stock equivalents for options 1 2 1 3 Weighted average number of common shares outstanding - diluted (denominator) 26,686 26,650 26,681 26,721 Diluted earnings per common share $ 1.31 $ 1.56 $ 4.01 $ 4.58

Note 3 - Investment Securitie_2

Note 3 - Investment Securities (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Held-to-Maturity, Allowance for Credit Loss	$ 1	$ 1	$ 1	$ 1
Total	4,417,566	4,849,363
Asset Pledged as Collateral [Member] | Public Deposits and Short-term Borrowed Funds [Member]
Total	$ 2,141,666	$ 2,034,706

Note 3 - Investment Securitie_3

Note 3 - Investment Securities - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Investment Securities Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt securities available for sale, amortized cost	$ 3,761,718	$ 4,269,948
Debt securities available for sale, gross unrealized gains	2,565	1,360
Debt securities available for sale, gross unrealized losses	(183,797)	(271,507)
Debt securities available for sale	3,580,486	3,999,801
Debt securities held to maturity, amortized cost	850,262	878,397
Debt securities held to maturity, gross unrecognized gains	1,970	148
Debt securities held to maturity, gross unrecognized losses	(15,152)	(28,983)
Debt securities held to maturity, fair value	837,080	849,562
Debt securities, amortized cost	4,611,980	5,148,345
Debt securities, gross unrecognized gains	4,535	1,508
Debt securities, gross unrecognized losses	(198,949)	(300,490)
Total	4,417,566	4,849,363
Agency Residential MBS [Member]
Debt securities available for sale, amortized cost	240,374	258,150
Debt securities available for sale, gross unrealized gains	162	6
Debt securities available for sale, gross unrealized losses	(12,971)	(18,702)
Debt securities available for sale	227,565	239,454
Debt securities held to maturity, amortized cost	62,745	78,565
Debt securities held to maturity, gross unrecognized gains	26	17
Debt securities held to maturity, gross unrecognized losses	(3,336)	(5,270)
Debt securities held to maturity, fair value	59,435	73,312
US Government Agencies Debt Securities [Member]
Debt securities available for sale, amortized cost	310,593	308,768
Debt securities available for sale, gross unrealized gains	119	2
Debt securities available for sale, gross unrealized losses	(7,103)	(13,851)
Debt securities available for sale	303,609	294,919
US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale, amortized cost	65,001	72,679
Debt securities available for sale, gross unrealized gains	30	42
Debt securities available for sale, gross unrealized losses	(1,155)	(1,438)
Debt securities available for sale	63,876	71,283
Debt securities held to maturity, amortized cost	53,769	71,182
Debt securities held to maturity, gross unrecognized gains	33	47
Debt securities held to maturity, gross unrecognized losses	(157)	(335)
Debt securities held to maturity, fair value	53,645	70,894
Corporate Debt Securities [Member]
Debt securities available for sale, amortized cost	2,057,115	2,129,103
Debt securities available for sale, gross unrealized gains	295	480
Debt securities available for sale, gross unrealized losses	(155,793)	(220,035)
Debt securities available for sale	1,901,617	1,909,548
Debt securities held to maturity, amortized cost	733,748	728,650
Debt securities held to maturity, gross unrecognized gains	1,911	84
Debt securities held to maturity, gross unrecognized losses	(11,659)	(23,378)
Debt securities held to maturity, fair value	724,000	705,356
Collateralized Debt Obligations [Member]
Debt securities available for sale, amortized cost	1,083,752	1,501,248
Debt securities available for sale, gross unrealized gains	1,943	830
Debt securities available for sale, gross unrealized losses	(6,775)	(17,481)
Debt securities available for sale	1,078,920	$ 1,484,597
US Treasury Securities [Member]
Debt securities available for sale, amortized cost	4,883
Debt securities available for sale, gross unrealized gains	16
Debt securities available for sale, gross unrealized losses	0
Debt securities available for sale	$ 4,899

Note 3 - Investment Securitie_4

Note 3 - Investment Securities - Amortized Cost and Estimated Market Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Investment securities available for sale, amortized cost, 1 year or less	$ 124,819	$ 52,703
Investment securities available for sale, fair value, 1 year or less	124,367	52,357
Investment securities held to maturity, amortized cost, 1 year or less	9,959	15,117
Investment securities held to maturity, fair value, 1 year or less	9,940	15,095
Investment securities available for sale, amortized cost, over 1 to 5 years	923,013	756,658
Investment securities available for sale, fair value, over 1 to 5 years	890,059	721,179
Investment securities held to maturity, amortized cost, over 1 to 5 years	352,871	312,847
Investment securities held to maturity, fair value, over 1 to 5 years	353,249	307,557
Investment securities available for sale, amortized cost, over 5 to 10 years	1,389,760	1,701,189
Investment securities available for sale, fair value, over 5 to 10 years	1,259,575	1,502,214
Over 5 to 10 years	1,259,575	1,502,214
Investment securities held to maturity, amortized cost, over 5 to 10 years	424,687	471,868
Investment securities held to maturity, fair value, over 5 to 10 years	414,456	453,598
Investment securities available for sale, amortized cost, subtotal	2,437,592	2,510,550
Investment securities available for sale, fair value, subtotal	2,274,001	2,275,750
Investment securities held to maturity, amortized cost, subtotal	787,517	799,832
Investment securities held to maturity, fair value, subtotal	777,645	776,250
Debt securities available for sale, amortized cost	3,761,718	4,269,948
Debt securities available for sale	3,580,486	3,999,801
Debt securities held to maturity, amortized cost	850,262	878,397
Debt securities held to maturity, fair value	837,080	849,562
Collateralized Debt Obligations [Member]
Debt securities available for sale, amortized cost, without single date maturity	1,083,752	1,501,248
Debt securities available for sale, without single date maturity	1,078,920	1,484,597
Debt securities held to maturity, amortized cost, without single date maturity	0	0
Debt securities held to maturity, fair value, without single date maturity	0	0
Debt securities available for sale, amortized cost	1,083,752	1,501,248
Debt securities available for sale	1,078,920	1,484,597
Agency Residential MBS [Member]
Debt securities available for sale, amortized cost, without single date maturity	240,374	258,150
Debt securities available for sale, without single date maturity	227,565	239,454
Debt securities held to maturity, amortized cost, without single date maturity	62,745	78,565
Debt securities held to maturity, fair value, without single date maturity	59,435	73,312
Debt securities available for sale, amortized cost	240,374	258,150
Debt securities available for sale	227,565	239,454
Debt securities held to maturity, amortized cost	62,745	78,565
Debt securities held to maturity, fair value	$ 59,435	$ 73,312

Note 3 - Investment Securitie_5

Note 3 - Investment Securities - Gross Unrealized Losses, Investment Securities Portfolio (Details) $ in Thousands	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Available for sale securities, less than 12 months, number of investment positions	9	39
Held to Maturity securities, less than 12 months, number of investment positions	5	27
Available for sale securities, less than 12 months, fair value	$ 69,796	$ 440,504
Held to Maturity securities, less than 12 months, fair value	1,214	45,166
Available for sale securities, less than 12 months, unrealized loss	(129)	(8,946)
Held to Maturity securities, less than 12 months, unrealized loss	$ (1)	$ (1,274)
Available for sale securities, 12 months or longer, number of investment positions	341	394
Held to Maturity securities, 12 months or longer, number of investment positions	140	165
Available for sale securities, 12 months or longer, fair value	$ 2,836,703	$ 3,047,766
Held to Maturity securities, 12 months or longer, fair value	551,138	739,440
Available for sale securities, 12 months or longer, unrealized loss	(183,668)	(262,561)
Held to Maturity securities, 12 months or longer, unrealized loss	$ (15,151)	$ (27,709)
Available for sale securities, total, number of investment positions	350	433
Held to Maturity securities, total, number of investment positions	145	192
Available for sale securities, total, fair value	$ 2,906,499	$ 3,488,270
Held to Maturity securities, total, fair value	552,352	784,606
Available for sale securities, total, unrealized loss	(183,797)	(271,507)
Held to Maturity securities, total, unrealized loss	$ (15,152)	$ (28,983)
Agency Residential MBS [Member]
Available for sale securities, less than 12 months, number of investment positions	3	1
Held to Maturity securities, less than 12 months, number of investment positions	0	1
Available for sale securities, less than 12 months, fair value	$ 5,141	$ 115
Held to Maturity securities, less than 12 months, fair value	0	0
Available for sale securities, less than 12 months, unrealized loss	(39)	(2)
Held to Maturity securities, less than 12 months, unrealized loss	$ 0	$ 0
Available for sale securities, 12 months or longer, number of investment positions	102	107
Held to Maturity securities, 12 months or longer, number of investment positions	80	93
Available for sale securities, 12 months or longer, fair value	$ 208,765	$ 238,642
Held to Maturity securities, 12 months or longer, fair value	58,401	72,376
Available for sale securities, 12 months or longer, unrealized loss	(12,932)	(18,700)
Held to Maturity securities, 12 months or longer, unrealized loss	$ (3,336)	$ (5,270)
Available for sale securities, total, number of investment positions	105	108
Held to Maturity securities, total, number of investment positions	80	94
Available for sale securities, total, fair value	$ 213,906	$ 238,757
Held to Maturity securities, total, fair value	58,401	72,376
Available for sale securities, total, unrealized loss	(12,971)	(18,702)
Held to Maturity securities, total, unrealized loss	$ (3,336)	$ (5,270)
US States and Political Subdivisions Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	0	2
Held to Maturity securities, less than 12 months, number of investment positions	5	23
Available for sale securities, less than 12 months, fair value	$ 0	$ 2,280
Held to Maturity securities, less than 12 months, fair value	1,214	18,599
Available for sale securities, less than 12 months, unrealized loss	0	(15)
Held to Maturity securities, less than 12 months, unrealized loss	$ (1)	$ (90)
Available for sale securities, 12 months or longer, number of investment positions	40	50
Held to Maturity securities, 12 months or longer, number of investment positions	26	26
Available for sale securities, 12 months or longer, fair value	$ 52,472	$ 57,614
Held to Maturity securities, 12 months or longer, fair value	26,008	25,466
Available for sale securities, 12 months or longer, unrealized loss	(1,155)	(1,423)
Held to Maturity securities, 12 months or longer, unrealized loss	$ (156)	$ (245)
Available for sale securities, total, number of investment positions	40	52
Held to Maturity securities, total, number of investment positions	31	49
Available for sale securities, total, fair value	$ 52,472	$ 59,894
Held to Maturity securities, total, fair value	27,222	44,065
Available for sale securities, total, unrealized loss	(1,155)	(1,438)
Held to Maturity securities, total, unrealized loss	$ (157)	$ (335)
US Government Agencies Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	0	2
Available for sale securities, less than 12 months, fair value	$ 0	$ 9,746
Available for sale securities, less than 12 months, unrealized loss	$ 0	$ (15)
Available for sale securities, 12 months or longer, number of investment positions	19	19
Available for sale securities, 12 months or longer, fair value	$ 286,796	$ 278,265
Available for sale securities, 12 months or longer, unrealized loss	$ (7,103)	$ (13,836)
Available for sale securities, total, number of investment positions	19	21
Available for sale securities, total, fair value	$ 286,796	$ 288,011
Available for sale securities, total, unrealized loss	$ (7,103)	$ (13,851)
Corporate Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	0	0
Held to Maturity securities, less than 12 months, number of investment positions	0	3
Available for sale securities, less than 12 months, fair value	$ 0	$ 0
Held to Maturity securities, less than 12 months, fair value	0	26,567
Available for sale securities, less than 12 months, unrealized loss	0	0
Held to Maturity securities, less than 12 months, unrealized loss	$ 0	$ (1,184)
Available for sale securities, 12 months or longer, number of investment positions	140	151
Held to Maturity securities, 12 months or longer, number of investment positions	34	46
Available for sale securities, 12 months or longer, fair value	$ 1,877,015	$ 1,894,602
Held to Maturity securities, 12 months or longer, fair value	466,729	641,598
Available for sale securities, 12 months or longer, unrealized loss	(155,793)	(220,035)
Held to Maturity securities, 12 months or longer, unrealized loss	$ (11,659)	$ (22,194)
Available for sale securities, total, number of investment positions	140	151
Held to Maturity securities, total, number of investment positions	34	49
Available for sale securities, total, fair value	$ 1,877,015	$ 1,894,602
Held to Maturity securities, total, fair value	466,729	668,165
Available for sale securities, total, unrealized loss	(155,793)	(220,035)
Held to Maturity securities, total, unrealized loss	$ (11,659)	$ (23,378)
Collateralized Debt Obligations [Member]
Available for sale securities, less than 12 months, number of investment positions	6	34
Available for sale securities, less than 12 months, fair value	$ 64,655	$ 428,363
Available for sale securities, less than 12 months, unrealized loss	$ (90)	$ (8,914)
Available for sale securities, 12 months or longer, number of investment positions	40	67
Available for sale securities, 12 months or longer, fair value	$ 411,655	$ 578,643
Available for sale securities, 12 months or longer, unrealized loss	$ (6,685)	$ (8,567)
Available for sale securities, total, number of investment positions	46	101
Available for sale securities, total, fair value	$ 476,310	$ 1,007,006
Available for sale securities, total, unrealized loss	$ (6,775)	$ (17,481)

Note 3 - Investment Securitie_6

Note 3 - Investment Securities - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Beginning balance	$ 1	$ 1
Provision	0	0
Chargeoffs	0	0
Recoveries	0	0
Total ending balance	$ 1	$ 1

Note 3 - Investment Securitie_7

Note 3 - Investment Securities - Credit Quality (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt securities held to maturity, amortized cost	$ 850,262	$ 878,397
AAA/AA/A [Member]
Debt securities held to maturity, amortized cost	674,239
BBB+/BBB [Member]
Debt securities held to maturity, amortized cost	175,525
NR [Member]
Debt securities held to maturity, amortized cost	498
Agency Residential MBS [Member]
Debt securities held to maturity, amortized cost	62,745	78,565
Agency Residential MBS [Member] | AAA/AA/A [Member]
Debt securities held to maturity, amortized cost	62,247
Agency Residential MBS [Member] | BBB+/BBB [Member]
Debt securities held to maturity, amortized cost	0
Agency Residential MBS [Member] | NR [Member]
Debt securities held to maturity, amortized cost	498
US States and Political Subdivisions Debt Securities [Member]
Debt securities held to maturity, amortized cost	53,769	71,182
US States and Political Subdivisions Debt Securities [Member] | AAA/AA/A [Member]
Debt securities held to maturity, amortized cost	53,769
US States and Political Subdivisions Debt Securities [Member] | BBB+/BBB [Member]
Debt securities held to maturity, amortized cost	0
US States and Political Subdivisions Debt Securities [Member] | NR [Member]
Debt securities held to maturity, amortized cost	0
Corporate Debt Securities [Member]
Debt securities held to maturity, amortized cost	733,748	$ 728,650
Corporate Debt Securities [Member] | AAA/AA/A [Member]
Debt securities held to maturity, amortized cost	558,223
Corporate Debt Securities [Member] | BBB+/BBB [Member]
Debt securities held to maturity, amortized cost	175,525
Corporate Debt Securities [Member] | NR [Member]
Debt securities held to maturity, amortized cost	$ 0

Note 3 - Investment Securitie_8

Note 3 - Investment Securities - Interest Income From Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Taxable	$ 48,699	$ 55,911	$ 154,648	$ 166,031
Tax-exempt from regular federal income tax	892	1,083	2,839	3,439
Total interest income from investment securities	$ 49,591	$ 56,994	$ 157,487	$ 169,470

Note 4 - Loans, Allowance for_3

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned (Details Textual) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Financing Receivable, Allowance for Credit Loss	$ 15,318	$ 17,744	$ 15,952	$ 16,867	$ 18,480	$ 20,284
Financing Receivable, Modified in Period, Amount	0	0
Financing Receivable, Held-for-Sale	0			0
Other Real Estate	0			0
Mortgage Loans in Process of Foreclosure, Amount	0			0
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss	$ 6,036	5,904	5,922	$ 5,925	6,083	5,888
Number of Collateral-dependent Loans	9			9
Collateral-dependent Loans, Balance	$ 10,400			$ 10,900
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss	5,004	$ 7,405	$ 5,867	6,455	$ 7,399	$ 8,076
Collateral-dependent Loans, Balance	661			377
Nonperforming Financial Instruments [Member]
Financing Receivable, Allowance for Credit Loss	0			0
Loans and Leases Receivable, Nonaccrual, Commitment to Lend	$ 0			$ 0

Note 4 - Loans, Allowance for_4

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Loans Receivable at Carrying Amount (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Loans	$ 833,967	$ 866,602
Commercial Portfolio Segment [Member]
Loans	130,096	136,550
Commercial Real Estate Portfolio Segment [Member]
Loans	503,561	487,523
Construction Portfolio Segment [Member]
Loans	5,064	5,063
Residential Portfolio Segment [Member]
Loans	8,813	9,935
Consumer Portfolio Segment [Member]
Loans	$ 186,433	$ 227,531

Note 4 - Loans, Allowance for_5

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Balance at beginning of period	$ 15,952	$ 18,480	$ 16,867	$ 20,284	$ 20,284
Provision (reversal)	0	400	300	(1,150)
Chargeoffs	(1,658)	(2,089)	(5,202)	(5,789)
Recoveries	1,024	953	3,353	4,399
Total allowance for credit losses	15,318	17,744	15,318	17,744	16,867
Commercial Portfolio Segment [Member]
Balance at beginning of period	3,896	4,764	4,216	6,138	6,138
Provision (reversal)	182	(345)	(133)	(3,755)
Chargeoffs	(109)	(262)	(137)	(410)	(410)
Recoveries	41	10	64	2,194
Total allowance for credit losses	4,010	4,167	4,010	4,167	4,216
Commercial Real Estate Portfolio Segment [Member]
Balance at beginning of period	5,922	6,083	5,925	5,888	5,888
Provision (reversal)	100	(194)	(80)	(29)
Chargeoffs	0	0	0		(45)
Recoveries	14	15	191	45
Total allowance for credit losses	6,036	5,904	6,036	5,904	5,925
Construction Portfolio Segment [Member]
Balance at beginning of period	243	202	245	150	150
Provision (reversal)	3	40	1	92
Chargeoffs	0	0	0		0
Recoveries	0	0	0
Total allowance for credit losses	246	242	246	242	245
Residential Portfolio Segment [Member]
Balance at beginning of period	24	32	26	32	32
Provision (reversal)	(2)	(6)	(4)	(6)
Chargeoffs	0	0	0		0
Recoveries	0	0	0
Total allowance for credit losses	22	26	22	26	26
Consumer Portfolio Segment [Member]
Balance at beginning of period	5,867	7,399	6,455	8,076	8,076
Provision (reversal)	(283)	905	516	2,548
Chargeoffs	(1,549)	(1,827)	(5,065)	(5,379)	(7,499)
Recoveries	969	928	3,098	2,160
Total allowance for credit losses	$ 5,004	$ 7,405	$ 5,004	$ 7,405	$ 6,455

Note 4 - Loans, Allowance for_6

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Credit Risk Profile by Internally Assigned Grade (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Loans	$ 833,967	$ 866,602
Commercial Portfolio Segment [Member]
Loans	130,096	136,550
Commercial Real Estate Portfolio Segment [Member]
Loans	503,561	487,523
Construction Portfolio Segment [Member]
Loans	5,064	5,063
Residential Portfolio Segment [Member]
Loans	8,813	9,935
Consumer Portfolio Segment [Member]
Loans	186,433	227,531
Pass [Member]
Loans	807,651	845,629
Pass [Member] | Commercial Portfolio Segment [Member]
Loans	123,277	130,001
Pass [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	492,369	475,870
Pass [Member] | Construction Portfolio Segment [Member]
Loans	0	5,063
Pass [Member] | Residential Portfolio Segment [Member]
Loans	8,515	9,606
Pass [Member] | Consumer Portfolio Segment [Member]
Loans	183,490	225,089
Substandard [Member]
Loans	25,100	18,908
Substandard [Member] | Commercial Portfolio Segment [Member]
Loans	6,819	6,549
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	11,192	11,653
Substandard [Member] | Construction Portfolio Segment [Member]
Loans	5,064	0
Substandard [Member] | Residential Portfolio Segment [Member]
Loans	298	329
Substandard [Member] | Consumer Portfolio Segment [Member]
Loans	1,727	377
Doubtful [Member]
Loans	509	1,479
Doubtful [Member] | Commercial Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] | Construction Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] | Residential Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] | Consumer Portfolio Segment [Member]
Loans	509	1,479
Unlikely to be Collected Financing Receivable [Member]
Loans	707	586
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Consumer Portfolio Segment [Member]
Loans	$ 707	$ 586

Note 4 - Loans, Allowance for_7

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Loans by Delinquency and Nonaccrual Status (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Loans	$ 833,967	$ 866,602
Loans	252	403
Commercial Portfolio Segment [Member]
Loans	130,096	136,550
Loans	60	71
Commercial Real Estate Portfolio Segment [Member]
Loans	503,561	487,523
Loans	192	330
Construction Portfolio Segment [Member]
Loans	5,064	5,063
Loans	0	0
Residential Portfolio Segment [Member]
Loans	8,813	9,935
Loans	0	2
Consumer Portfolio Segment [Member]
Loans	186,433	227,531
Loans	0	0
Financial Asset, Not Past Due [Member]
Loans	827,656	857,250
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member]
Loans	129,899	136,421
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	502,930	485,476
Financial Asset, Not Past Due [Member] | Construction Portfolio Segment [Member]
Loans	5,064	5,063
Financial Asset, Not Past Due [Member] | Residential Portfolio Segment [Member]
Loans	8,813	9,933
Financial Asset, Not Past Due [Member] | Consumer Portfolio Segment [Member]
Loans	180,950	220,357
Financial Asset, 30 to 59 Days Past Due [Member]
Loans	4,474	6,553
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member]
Loans	89	58
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	439	951
Financial Asset, 30 to 59 Days Past Due [Member] | Construction Portfolio Segment [Member]
Loans	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Portfolio Segment [Member]
Loans	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Loans	3,946	5,544
Financial Asset, 60 to 89 Days Past Due [Member]
Loans	918	2,008
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member]
Loans	48	0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	0	766
Financial Asset, 60 to 89 Days Past Due [Member] | Construction Portfolio Segment [Member]
Loans	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Residential Portfolio Segment [Member]
Loans	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Loans	870	1,242
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	667	388
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member]
Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Portfolio Segment [Member]
Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Portfolio Segment [Member]
Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Loans	$ 667	$ 388

Note 4 - Loans, Allowance for_8

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Risk Category of Loans by Class (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Loans	$ 833,967		$ 833,967		$ 866,602
Loans	252		252		403
Loans, Writeoff	1,658	$ 2,089	5,202	$ 5,789
Financial Asset, Not Past Due [Member]
Loans	827,656		827,656		857,250
Financial Asset, 30 to 59 Days Past Due [Member]
Loans	4,474		4,474		6,553
Financial Asset, 60 to 89 Days Past Due [Member]
Loans	918		918		2,008
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	667		667		388
Pass [Member]
Loans	807,651		807,651		845,629
Substandard [Member]
Loans	25,100		25,100		18,908
Doubtful [Member]
Loans	509		509		1,479
Unlikely to be Collected Financing Receivable [Member]
Loans	707		707		586
Commercial Portfolio Segment [Member]
Originated prior	22,595		22,595		20,566
Originated four years before	9,406		9,406		6,963
Originated three years before	23,519		23,519		12,601
Originated two years before	13,350		13,350		34,605
Originated one years before	16,195		16,195		22,146
Originated current year	16,969		16,969		13,112
Total Term Loans	102,034		102,034		109,993
Financing Receivable Revolving	28,062		28,062		26,557
Loans	130,096		130,096		136,550
Loans	60		60		71
Originated prior, writeoff	0		0		0
Originated four years before, writeoff	0		0		0
Originated three years before, writeoff	0		0		3
Originated two years before, writeoff	0		0		135
Originated one years before, writeoff	0		0		0
Originated current year, writeoff	0		0		0
Total term loans, writeoff	0		0		138
Financing Receivable Revolving, Writeoff	109		137		272
Loans, Writeoff	109	262	137	410	410
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	129,899		129,899		136,421
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	89		89		58
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	48		48		0
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0		0		0
Commercial Portfolio Segment [Member] | Pass [Member]
Originated prior	19,923		19,923		20,554
Originated four years before	9,406		9,406		4,471
Originated three years before	20,684		20,684		12,601
Originated two years before	13,350		13,350		31,770
Originated one years before	16,195		16,195		22,146
Originated current year	16,969		16,969		13,112
Total Term Loans	96,527		96,527		104,654
Financing Receivable Revolving	26,750		26,750		25,347
Loans	123,277		123,277		130,001
Commercial Portfolio Segment [Member] | Substandard [Member]
Originated prior	2,672		2,672		12
Originated four years before	0		0		2,492
Originated three years before	2,835		2,835		0
Originated two years before	0		0		2,835
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	5,507		5,507		5,339
Financing Receivable Revolving	1,312		1,312		1,210
Loans	6,819		6,819		6,549
Commercial Portfolio Segment [Member] | Doubtful [Member]
Originated prior	0		0		0
Originated four years before	0		0		0
Originated three years before	0		0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	0		0		0
Financing Receivable Revolving	0		0		0
Loans	0		0		0
Commercial Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Originated prior	0		0		0
Originated four years before	0		0		0
Originated three years before	0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	0		0		0
Financing Receivable Revolving	0		0		0
Loans	0		0		0
Commercial Real Estate Portfolio Segment [Member]
Originated prior	225,996		225,996		182,981
Originated four years before	67,182		67,182		68,967
Originated three years before	64,703		64,703		70,110
Originated two years before	49,590		49,590		68,891
Originated one years before	43,371		43,371		50,899
Originated current year	52,719		52,719		45,675
Total Term Loans	503,561		503,561		487,523
Financing Receivable Revolving	0		0		0
Loans	503,561		503,561		487,523
Loans	192		192		330
Originated prior, writeoff	0		0		45
Originated four years before, writeoff	0		0		0
Originated three years before, writeoff	0		0		0
Originated two years before, writeoff	0		0		0
Originated one years before, writeoff	0		0		0
Originated current year, writeoff	0		0		0
Total term loans, writeoff	0		0		45
Financing Receivable Revolving, Writeoff	0		0		0
Loans, Writeoff	0	0	0		45
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	502,930		502,930		485,476
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	439		439		951
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	0		0		766
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0		0		0
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Originated prior	215,780		215,780		172,925
Originated four years before	66,206		66,206		68,156
Originated three years before	64,703		64,703		69,324
Originated two years before	49,590		49,590		68,891
Originated one years before	43,371		43,371		50,899
Originated current year	52,719		52,719		45,675
Total Term Loans	492,369		492,369		475,870
Financing Receivable Revolving	0		0		0
Loans	492,369		492,369		475,870
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Originated prior	10,216		10,216		10,056
Originated four years before	976		976		811
Originated three years before	0		0		786
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	11,192		11,192		11,653
Financing Receivable Revolving	0		0		0
Loans	11,192		11,192		11,653
Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]
Originated prior	0		0		0
Originated four years before	0		0		0
Originated three years before	0		0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	0		0		0
Financing Receivable Revolving	0		0		0
Loans	0		0		0
Commercial Real Estate Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Originated prior	0		0		0
Originated four years before	0		0		0
Originated three years before	0		0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	0		0		0
Financing Receivable Revolving	0		0		0
Loans	0		0		0
Residential Portfolio Segment [Member]
Originated prior	8,813		8,813		9,935
Originated four years before	0		0		0
Originated three years before	0		0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	8,813		8,813		9,935
Financing Receivable Revolving	0		0		0
Loans	8,813		8,813		9,935
Loans	0		0		2
Originated prior, writeoff	0		0		0
Originated four years before, writeoff	0		0		0
Originated three years before, writeoff	0		0		0
Originated two years before, writeoff	0		0		0
Originated one years before, writeoff	0		0		0
Originated current year, writeoff	0		0		0
Total term loans, writeoff	0		0		0
Financing Receivable Revolving, Writeoff	0		0		0
Loans, Writeoff	0	0	0		0
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	8,813		8,813		9,933
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	0		0		0
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	0		0		0
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0		0		0
Residential Portfolio Segment [Member] | Pass [Member]
Originated prior	8,515		8,515		9,606
Originated four years before	0		0		0
Originated three years before	0		0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	8,515		8,515		9,606
Financing Receivable Revolving	0		0		0
Loans	8,515		8,515		9,606
Residential Portfolio Segment [Member] | Substandard [Member]
Originated prior	298		298		329
Originated four years before	0		0		0
Originated three years before	0		0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	298		298		329
Financing Receivable Revolving	0		0		0
Loans	298		298		329
Residential Portfolio Segment [Member] | Doubtful [Member]
Originated prior	0		0		0
Originated four years before	0		0		0
Originated three years before	0		0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	0		0		0
Financing Receivable Revolving	0		0		0
Loans	0		0		0
Residential Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Originated prior	0		0		0
Originated four years before	0		0		0
Originated three years before	0		0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	0		0		0
Financing Receivable Revolving	0		0		0
Loans	0		0		0
Construction Portfolio Segment [Member]
Originated prior	0		0		0
Originated four years before	0		0		0
Originated three years before	0		0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	0		0		0
Financing Receivable Revolving	5,064		5,064		5,063
Loans	5,064		5,064		5,063
Loans	0		0		0
Originated prior, writeoff	0		0		0
Originated four years before, writeoff	0		0		0
Originated three years before, writeoff	0		0		0
Originated two years before, writeoff	0		0		0
Originated one years before, writeoff	0		0		0
Originated current year, writeoff	0		0		0
Total term loans, writeoff	0		0		0
Financing Receivable Revolving, Writeoff	0		0		0
Loans, Writeoff	0	0	0		0
Construction Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	5,064		5,064		5,063
Construction Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	0		0		0
Construction Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	0		0		0
Construction Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0		0		0
Construction Portfolio Segment [Member] | Pass [Member]
Originated prior	0		0		0
Originated four years before	0		0		0
Originated three years before	0		0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	0		0		0
Financing Receivable Revolving	0		0		5,063
Loans	0		0		5,063
Construction Portfolio Segment [Member] | Substandard [Member]
Originated prior	0		0		0
Originated four years before	0		0		0
Originated three years before	0		0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	0		0		0
Financing Receivable Revolving	5,064		5,064		0
Loans	5,064		5,064		0
Construction Portfolio Segment [Member] | Doubtful [Member]
Originated prior	0		0		0
Originated four years before	0		0		0
Originated three years before	0		0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	0		0		0
Financing Receivable Revolving	0		0		0
Loans	0		0		0
Construction Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Originated prior	0		0		0
Originated four years before	0		0		0
Originated three years before	0		0		0
Originated two years before	0		0		0
Originated one years before	0		0		0
Originated current year	0		0		0
Total Term Loans	0		0		0
Financing Receivable Revolving	0		0		0
Loans	0		0		0
Consumer Portfolio Segment [Member]
Originated prior	8,631		8,631		6,736
Originated four years before	15,146		15,146		12,480
Originated three years before	38,374		38,374		23,541
Originated two years before	56,106		56,106		53,953
Originated one years before	30,082		30,082		73,689
Originated current year	22,196		22,196		39,153
Term Loans	170,535		170,535		209,552
Financing Receivable Revolving	15,898		15,898		17,979
Loans	186,433		186,433		227,531
Loans	0		0		0
Originated prior, writeoff	62		241		246
Originated four years before, writeoff	61		327		161
Originated three years before, writeoff	553		1,935		843
Originated two years before, writeoff	296		1,403		2,329
Originated one years before, writeoff	326		778		3,191
Originated current year, writeoff	11		11		453
Total term loans, writeoff	1,309		4,695		7,223
Financing Receivable Revolving, Writeoff	240		370		276
Loans, Writeoff	1,549	$ 1,827	5,065	$ 5,379	7,499
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	0		0		0
Consumer Portfolio Segment [Member] | Term Loans Originated Four Years Prior [Member]
Loans	0		0		0
Consumer Portfolio Segment [Member] | Term Loans Originated Three Years Prior [Member]
Loans	0		0		0
Consumer Portfolio Segment [Member] | Term Loans Originated Two Years Prior [Member]
Loans	0		0		0
Consumer Portfolio Segment [Member] | Term Loans Originated One Year Prior [Member]
Loans	0		0		0
Consumer Portfolio Segment [Member] | Term Loans Originated Current Year [Member]
Loans	0		0		0
Consumer Portfolio Segment [Member] | Total Term Loans [Member]
Loans	0		0		0
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0		0		0
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Originated prior	8,360		8,360		6,545
Originated four years before	14,762		14,762		12,144
Originated three years before	36,249		36,249		22,700
Originated two years before	54,464		54,464		51,055
Originated one years before	29,550		29,550		71,388
Originated current year	21,908		21,908		38,699
Term Loans	165,293		165,293		202,531
Financing Receivable Revolving	15,657		15,657		17,826
Loans	180,950		180,950		220,357
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Originated prior	217		217		160
Originated four years before	294		294		277
Originated three years before	1,682		1,682		600
Originated two years before	1,206		1,206		2,345
Originated one years before	346		346		1,733
Originated current year	169		169		332
Term Loans	3,914		3,914		5,447
Financing Receivable Revolving	32		32		97
Loans	3,946		3,946		5,544
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Originated prior	17		17		31
Originated four years before	20		20		51
Originated three years before	142		142		153
Originated two years before	385		385		410
Originated one years before	87		87		430
Originated current year	16		16		122
Term Loans	667		667		1,197
Financing Receivable Revolving	203		203		45
Loans	870		870		1,242
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Originated prior	37		37		0
Originated four years before	70		70		8
Originated three years before	301		301		88
Originated two years before	51		51		143
Originated one years before	99		99		138
Originated current year	103		103		0
Term Loans	661		661		377
Financing Receivable Revolving	6		6		11
Loans	667		667		388
Consumer Portfolio Segment [Member] | Pass [Member]
Loans	183,490		183,490		225,089
Consumer Portfolio Segment [Member] | Substandard [Member]
Loans	1,727		1,727		377
Consumer Portfolio Segment [Member] | Doubtful [Member]
Loans	509		509		1,479
Consumer Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	$ 707		$ 707		$ 586

Note 5 - Concentration of Cre_2

Note 5 - Concentration of Credit Risk (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Unsecured Loan Limit, Percentage of Shareholders' Equity, California Financial Code	15%
Secured and Unsecured Loan Limit Percentage, California Financial Code	25%
Loan Commitments Related to Real Estate Loans	$ 27,956	$ 30,888
Corporate Debt Securities [Member]
Concentration Risk, Issuer Relationships	106
Concentration Risk, Aggregate Securities Amount	$ 5,000
Commercial Real Estate Loans [Member]
Loan To Value Ratio Requirement	75%
Residential Real Estate Loans [Member]
Loan To Value Ratio Requirement	80%
Aggregate Loans [Member] | Customer Concentration Risk [Member]
Concentration Risk, Issuer Relationships	25
Aggregate Loans [Member] | Customer Concentration Risk [Member] | Minimum [Member]
Concentration Risk, Aggregate Loans Amount	$ 5,000

Note 6 - Other Assets and Oth_3

Note 6 - Other Assets and Other Liabilities (Details Textual) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) $ / shares shares	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) $ / shares shares	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
LIHTC Investments	$ 24,577		$ 24,577		$ 28,667
Investment Program, Proportional Amortization Method, Elected, Commitment	$ 9,831		$ 9,831		15,561
Lessee, Operating Lease, Term of Contract	5 years		5 years
Lessee, Operating Lease, Renewal Term (Year)	5 years		5 years
Operating Lease, Right-of-Use Asset	$ 18,953		$ 18,953		18,814
Operating Lease, Liability	$ 18,953		$ 18,953		$ 18,814
Operating Lease, Weighted Average Remaining Lease Term (Year)	4 years		4 years
Operating Lease, Weighted Average Discount Rate, Percent	3.29%		3.29%
Operating Lease, Cost	$ 1,663	$ 1,633	$ 5,020	$ 4,949
Contingent Commitment, Remainder of Fiscal Year [Member]
Investment Program, Proportional Amortization Method, Elected, Commitment	8,347		8,347
Contingent Commitment, Year 1 [Member]
Investment Program, Proportional Amortization Method, Elected, Commitment	600		600
Contingent Commitment, Year 2 [Member]
Investment Program, Proportional Amortization Method, Elected, Commitment	145		145
Contingent Commitment, Year 3 [Member]
Investment Program, Proportional Amortization Method, Elected, Commitment	189		189
Contingent Commitment, Thereafter [Member]
Investment Program, Proportional Amortization Method, Elected, Commitment	$ 550		$ 550
Visa Inc. [Member]
Investment Owned, Balance, Shares | shares	211		211
Conversion Rate of Class B Common Stock into Class A Common Stock			1.5653
Share Price | $ / shares	$ 274.95		$ 274.95
Visa Inc. [Member] | Reported Value Measurement [Member]
Investment Owned, Fair Value	$ 0		$ 0

Note 6 - Other Assets and Oth_4

Note 6 - Other Assets and Other Liabilities - Other Assets (Details) - USD ($) $ in Thousands		Sep. 30, 2024	Dec. 31, 2023
Cost method equity investments:
Federal Reserve Bank stock (1)	[1]	$ 14,069	$ 14,069
Other investments		158	158
Total cost method equity investments		14,227	14,227
Life insurance cash surrender value		67,888	66,611
Net deferred tax asset		72,916	99,507
Right-of-use asset		18,953	18,814
Limited partnership investments		24,577	28,667
Interest receivable		48,127	54,568
Prepaid assets		4,613	5,200
Other assets		9,521	9,716
Total other assets		$ 260,822	$ 297,310
[1]A bank applying for membership in the Federal Reserve System is required to subscribe to stock in the Federal Reserve Bank (FRB) in its district in a sum equal to six percent of the bank’s paid-up capital stock and surplus. One-half of the amount of the bank's subscription shall be paid to the FRB and the remaining half will be subject to call when deemed necessary by the Board of Governors of the Federal Reserve System.

Note 6 - Other Assets and Oth_5

Note 6 - Other Assets and Other Liabilities - Amounts Recognized in Net Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Limited partnership operating losses	$ 1,210	$ 1,440	$ 4,090	$ 4,314
Tax credits recognized in provision for income taxes	$ 785	$ 765	$ 2,735	$ 2,820

Note 6 - Other Assets and Oth_6

Note 6 - Other Assets and Other Liabilities - Summary of Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Operating lease liability	$ 18,953	$ 18,814
Other liabilities	35,613	40,455
Total other liabilities	$ 54,566	$ 59,269

Note 6 - Other Assets and Oth_7

Note 6 - Other Assets and Other Liabilities - Summarizes of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
The remainder of 2024	$ 1,627
2025	6,082
2026	4,453
2027	3,578
2028	2,845
Thereafter	1,734
Total minimum lease payments	20,319
Less: discount	(1,366)
Operating lease liability	$ 18,953	$ 18,814

Note 7 - Goodwill and Identif_3

Note 7 - Goodwill and Identifiable Intangible Assets (Details Textual) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Goodwill and Intangible Asset Impairment	$ 0	$ 0
Amortization Expense, Adjustment Resulting from a Change in Estimates of Useful Lives or Residual Values	$ 0	$ 0

Note 7 - Goodwill and Identif_4

Note 7 - Goodwill and Identifiable Intangible Assets - Carrying Values of Goodwill (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Goodwill	$ 121,673	$ 121,673

Note 7 - Goodwill and Identif_5

Note 7 - Goodwill and Identifiable Intangible Assets - Gross Carrying Amount of Intangible Assets and Accumulated Amortization (Details) - Core Deposits [Member] - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Gross Carrying Amount	$ 56,808	$ 56,808
Accumulated amortization	$ (56,630)	$ (56,461)

Note 7 - Goodwill and Identif_6

Note 7 - Goodwill and Identifiable Intangible Assets - Estimated Future Amortization Expense for Identifiable Intangible Assets (Details) - Core Deposits [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
For the nine months ended September 30, 2024 (actual)	$ 169
The remainder of 2024	53
2025	$ 125

Note 8 - Deposits and Borrowe_3

Note 8 - Deposits and Borrowed Funds (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2024
Demand Deposit Overdrafts	$ 898		$ 898		$ 620
Interest Expense, Time Deposits, $100,000 or More	30	$ 26	71	$ 91
Bank Term Funding Program [Member]
Repayments of Lines of Credit			200,000
Federal Reserve [Member]
Line of Credit Facility, Maximum Borrowing Capacity	815,919		815,919
Federal Reserve [Member] | Assets Available to be Pledged as Collateral [Member]
Available for Sale and Held to Maturity Debt Securities	$ 1,663,673		$ 1,663,673

Note 8 - Deposits and Borrowe_4

Note 8 - Deposits and Borrowed Funds - Deposits Detail (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Noninterest-bearing	$ 2,375,958	$ 2,605,844
Interest-bearing:
Transaction	925,455	1,072,233
Savings	1,677,332	1,699,388
Time deposits less than $100 thousand	50,030	56,100
Time deposits $100 thousand through $250 thousand	26,005	31,107
Time deposits more than $250 thousand	10,270	9,595
Total deposits	$ 5,065,050	$ 5,474,267

Note 8 - Deposits and Borrowe_5

Note 8 - Deposits and Borrowed Funds - Short-term Borrowed Funds (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Collateral carrying value	$ 442,940	$ 259,616
Securities sold under repurchase agreements	132,487	58,162
Agency Residential MBS [Member]
Collateral carrying value	22,838	25,669
Corporate Debt Securities [Member]
Collateral carrying value	$ 420,102	$ 233,947

Note 9 - Fair Value Measureme_3

Note 9 - Fair Value Measurements (Details Textual)	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2024
Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Appraisal Rate	10%	10%

Note 9 - Fair Value Measureme_4

Note 9 - Fair Value Measurements - Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands		Sep. 30, 2024		Dec. 31, 2023
Debt securities available for sale		$ 3,580,486		$ 3,999,801
Agency Residential MBS [Member]
Debt securities available for sale		227,565		239,454
US Government Agencies Debt Securities [Member]
Debt securities available for sale		303,609		294,919
US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale		63,876		71,283
Corporate Debt Securities [Member]
Debt securities available for sale		1,901,617		1,909,548
US Treasury Securities [Member]
Debt securities available for sale		4,899
Fair Value, Recurring [Member]
Debt securities available for sale		3,580,486		3,999,801
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale		4,899		0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale		3,575,587		3,999,801
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | Agency Residential MBS [Member]
Debt securities available for sale		227,565		239,454
Fair Value, Recurring [Member] | Agency Residential MBS [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale		0		0
Fair Value, Recurring [Member] | Agency Residential MBS [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale		227,565		239,454
Fair Value, Recurring [Member] | Agency Residential MBS [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member]
Debt securities available for sale		303,609		294,919
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale		0		0
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale		303,609		294,919
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale		63,876		71,283
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale		0		0
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale		63,876		71,283
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | Corporate Debt Securities [Member]
Debt securities available for sale		1,901,617		1,909,548
Fair Value, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale		0		0
Fair Value, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale		1,901,617		1,909,548
Fair Value, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | Collateralized Loan Obligations [Member]
Debt securities available for sale		1,078,920		1,484,597
Fair Value, Recurring [Member] | Collateralized Loan Obligations [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale		0		0
Fair Value, Recurring [Member] | Collateralized Loan Obligations [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale		1,078,920		1,484,597
Fair Value, Recurring [Member] | Collateralized Loan Obligations [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale		0	[1]	$ 0	[2]
Fair Value, Recurring [Member] | US Treasury Securities [Member]
Debt securities available for sale		4,899
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale		4,899
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale		0
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale	[1]	$ 0
[1]There were no transfers into or out of level 3 during the nine months ended September 30, 2024.[2]There were no transfers into or out of level 3 during the year ended December 31, 2023.

Note 9 - Fair Value Measureme_5

Note 9 - Fair Value Measurements - Assets Measured at Fair Value on a Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Commercial real estate	$ 14	$ 110
Commercial real estate	0	0
Fair Value, Inputs, Level 1 [Member]
Commercial real estate	0	0
Fair Value, Inputs, Level 2 [Member]
Commercial real estate	0	0
Fair Value, Inputs, Level 3 [Member]
Commercial real estate	14	110
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Commercial real estate	14	110
Commercial real estate	0	0
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member]
Commercial real estate	0	0
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member]
Commercial real estate	0	0
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member]
Commercial real estate	$ 14	$ 110

Note 9 - Fair Value Measureme_6

Note 9 - Fair Value Measurements - Fair Value Estimates for Financial Instruments, Excluding Financial Instruments on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Reported Value Measurement [Member]
Cash and due from banks	$ 502,945	$ 190,314
Debt securities held to maturity	850,261	878,396
Loans	818,649	849,735
Deposits	5,065,050	5,474,267
Securities sold under repurchase agreements	132,487	58,162
Estimate of Fair Value Measurement [Member]
Cash and due from banks	502,945	190,314
Debt securities held to maturity	837,080	849,562
Loans	830,515	847,031
Deposits	5,060,792	5,474,012
Securities sold under repurchase agreements	132,487	58,162
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and due from banks	502,945	190,314
Debt securities held to maturity	0	0
Loans	0	0
Deposits	0	0
Securities sold under repurchase agreements	0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and due from banks	0	0
Debt securities held to maturity	837,080	849,562
Loans	0	0
Deposits	4,978,745	5,377,465
Securities sold under repurchase agreements	132,487	58,162
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and due from banks	0	0
Debt securities held to maturity	0	0
Loans	830,515	847,031
Deposits	$ 82,047	96,547
Securities sold under repurchase agreements		$ 0

Note 10 - Commitments and Con_2

Note 10 - Commitments and Contingent Liabilities (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Loan Commitments, Not Unconditionally Cancellable	$ 27,956	$ 29,958
Unfunded Loan Commitments	174,320	206,028
Guarantor Obligations, Current Carrying Value	1,000	1,000
Other Liabilities [Member]
Reserve for Unfunded Commitments	201	201
Financial Standby Letter of Credit [Member]
Letters of Credit Outstanding, Amount	1,961	2,044
Commercial Standby Letters of Credit [Member]
Letters of Credit Outstanding, Amount	$ 95	$ 95

Note 11 - Earnings Per Common_3

Note 11 - Earnings Per Common Share (Details Textual) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Share-Based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,068	964	1,093	991

Note 11 - Earnings Per Common_4

Note 11 - Earnings Per Common Share - Earnings Per Common Share and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Net income applicable to common equity (numerator)	$ 35,057	$ 41,601	$ 106,936	$ 122,300
Weighted average number of common shares outstanding - basic (in shares)	26,685	26,648	26,680	26,718
Basic earnings per common share (in dollars per share)	$ 1.31	$ 1.56	$ 4.01	$ 4.58
Add common stock equivalents for options (in shares)	1	2	1	3
Weighted average number of common shares outstanding - diluted (in shares)	26,686	26,650	26,681	26,721
Diluted earnings per common share (in dollars per share)	$ 1.31	$ 1.56	$ 4.01	$ 4.58