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Note 3 - Debt Securities (Details Textual) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Debt Securities, Available-for-Sale, Allowance for Credit Loss	$ 0
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss	$ 1,120		$ 1,250
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	115		112
Percentage of Combined Depreciation of Combined Reported Value of Aggregate Securities Portfolio	9.20%		5.02%
Proceeds from Sale of Debt Securities, Available-for-Sale	$ 0	$ 17,007
Debt Securities, Available-for-Sale, Amortized Cost	181,529		$ 295,045
Asset Pledged as Collateral [Member]
Debt Securities, Available-for-Sale, Amortized Cost	$ 44,550		$ 145,090

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

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-SubTopic 210
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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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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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