Note 18 - Commitments and Contingencies - Financial Instruments With Off-balance Sheet Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Commitments to originate, fund or purchase loans	$ 167,447	$ 232,940
Single Family Mortgages [Member]
Commitments to originate, fund or purchase loans	2,072	6,220
Commercial Real Estate [Member]
Commitments to originate, fund or purchase loans	5,196	17,656
Non-real Estate Commercial Loans [Member]
Commitments to originate, fund or purchase loans	0	617
Undisbursed Balance of Loans Closed [Member]
Commitments to originate, fund or purchase loans	61,681	92,774
Unused Line of Credit [Member]
Commitments to originate, fund or purchase loans	90,940	103,841
Letters of Credit [Member]
Commitments to originate, fund or purchase loans	7,558	11,832
Forward Commitments [Member]
Forward commitments	$ 3,078	$ 6,575