Note 13 - Commitments and Contingencies (Details Textual) - USD ($)	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Proceeds from Sale, Loan, Held-for-Sale	$ 571,287,000	$ 411,484,000	$ 708,400,000
Other Liabilities	31,036,000	35,737,000
Holdback Reserve For Guaranteed Loans [Member]
Other Liabilities	2,000,000	2,100,000
Federal Home Loan Bank of Des Moines [Member]
Proceeds from Sale, Loan, Held-for-Sale	$ 8,600,000
Escrow Holdback Relative to Outstanding Credit Enhancement (CE) Obligation, Percentage	10.00%
Escrow Holdback Relative to Outstanding Credit Enhancement (CE) Obligation	$ 39,000
Federal Home Loan Bank of Des Moines [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Proceeds from Sale, Loan, Held-for-Sale	0	0
Federal Home Loan Bank of Des Moines [Member] \| Recourse [Member]
First Loss Account (FLA)	581,000
Credit Enhancement (CE) Obligation	$ 389,000
Credit Enhancement (CE) Obligation, Percentage of Outstanding Loans	4.50%
Unfunded Loan Commitment [Member]
Financing Receivable, Allowance for Credit Loss	$ 1,400,000	1,500,000
Financing Receivable, Allowance for Credit Loss, Recovery	$ 123,000	$ 1,000,000

Represents the amount established as A Percentage of Outstanding Credit Enhancement (CE) Obligation

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- Definition

Represents the required credit enhancement (“CE”) obligation.

+ References

No definition available.

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- Definition

Represents the credit enhancement (“CE”) obligation as a percentage of the outstanding loans.

+ References

No definition available.

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- Definition

Represents the amount established as an escrow holdback relative to the amount of outstanding credit obligation.

+ References

No definition available.

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- Definition

Represents the establishment of a first loss account (“FLA”) related to loans.

+ References

No definition available.

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- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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- Definition

Amount of increase in allowance for credit loss on financing receivable from recovery.

+ References

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- Definition

Amount of liabilities classified as other.

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- Definition

The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage securitization.

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