Note 5 - Allowance for Credit Losses - Summary of Modified Financing Receivables (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount	$ 48,534	$ 16,315
Residential Portfolio Segment [Member] \| Single Family [Member] \| Extended Maturity [Member]
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount	$ 3,813
Total % of Loan Type	1.90%
Term increase (Month)	6 months
Residential Portfolio Segment [Member] \| Multifamily [Member] \| Contractual Interest Rate Reduction [Member]
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount	$ 9,570
Total % of Loan Type	4.10%
Commercial Real Estate Portfolio Segment [Member] \| Non-owner Occupied [Member] \| Extended Maturity on Interest Only Payments [Member]
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount		$ 16,000
Total % of Loan Type		3.50%
Term increase (Month)		6 months
Commercial Real Estate Portfolio Segment [Member] \| Construction and Land Development [Member] \| Extended Maturity and Interest Rate Reduction [Member]
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount	$ 31,153
Total % of Loan Type	7.90%
Term increase (Month)	24 months
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Extended Maturity [Member]
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount		$ 315
Total % of Loan Type		0.40%
Term increase (Month)		3 months
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Extended Maturity on Interest Only Payments [Member]
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount	$ 3,998
Total % of Loan Type	4.80%
Term increase (Month)	7 months

Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

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+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A

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