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Note 2 - Debt Securities (Details Textual) $ in Thousands	3 Months Ended
	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)
Debt Securities, Available-for-Sale, Allowance for Credit Loss	$ 0
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss	$ 925		$ 694
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	98		103
Percentage of Combined Depreciation of Combined Reported Value of Aggregate Securities Portfolio	9.86%		8.74%
Proceeds from Sale of Debt Securities, Available-for-Sale	$ 0	$ 0
Debt Securities, Available-for-Sale, Amortized Cost	$ 142,389		$ 184,687
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Interest Receivable	Interest Receivable
Asset Pledged as Collateral [Member]
Debt Securities, Available-for-Sale, Amortized Cost	$ 25,440		$ 24,640

X

- Definition

Represents the percentage of combined depreciation of combined reported value of aggregate securities portfolio.

+ References

No definition available.

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- Definition

Amortized cost of 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 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1))
-Publisher FASB
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Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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- Definition

Indicates line item in statement of financial position that includes accrued interest, after 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
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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).

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Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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