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v3.25.1

Note 1 - Significant Accounting Policies (Details Textual) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 USD ($) shares | Mar. 31, 2024 USD ($) shares | Dec. 31, 2024 USD ($)
Number of Unconsolidated Business Trusts Formed to Issue Trust Preferred Securities | 5 |  |
Debt Securities, Available-for-Sale, Allowance for Credit Loss, Ending Balance | $ 0 |  | $ 0
Financing Receivable, Unamortized Loan Cost (Fee) | $ 2,300 |  | 2,200
Interest Income on Commercial and Mortgage Loans Discontinued Period (Day) | 90 days |  |
Maximum Delinquency Period for Consumer and Credit Card Loans to be Charged Off (Day) | 120 days |  |
Loan, Mortgage, Held-for-Sale, Fair Value Disclosure | $ 15,500 |  | 16,000
Financing Receivable, Credit Loss, Expense (Reversal) | 2,100 | $ 1,300 |
Financing Receivable, Accrued Interest, after Allowance for Credit Loss | 17,200 |  | 17,300
Continuing Involvement with Transferred Financial Assets, Principal Amount Outstanding | 1,560,000 |  | 1,550,000
Servicing Asset at Amortized Cost | 12,500 |  | 12,500
Servicing Asset at Fair Value, Amount | 21,600 |  | $ 21,000
Goodwill, Impairment Loss | $ 0 |  |
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Other Assets |  | Other Assets
Restricted Stock [Member] |  |  |
Incremental Common Shares Attributable to Participating Nonvested Shares with Non-forfeitable Dividend Rights (in shares) | shares | 278,000 | 327,000 |

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- Definition Number of days past due when interest income on commercial and mortgage loans is discontinued unless the loans are well-secured and in process of collection. + References No definition available. + Details
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- Definition Principal amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-4 + Details
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- Definition Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (aaa) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479130/326-30-45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-9 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-9 + Details
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- Definition Amount of unamortized loan commitment, origination, and other costs (fees) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481598/310-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-4 Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 3 -SubTopic 20 -Topic 310 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481569/310-20-50-3 + Details
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