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Note 16 - Commitments and Contingencies - Commitments to Extend Credit (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fixed rate	$ 666	$ 6,509
Adjustable rate	20,684	22,681
Commitments to extend credit	181,686	193,199
Standby Letters of Credit [Member]
Commitments to extend credit	1,894	484
Undisbursed Commercial and Personal Lines of Credit [Member]
Commitments to extend credit	40,187	41,833
Undisbursed Portion of Construction Loans in Process [Member]
Commitments to extend credit	40,879	44,574
Undisbursed Portion of Home Equity Lines of Credit [Member]
Commitments to extend credit	$ 77,376	$ 77,118