Note 8 - Loans Receivable, Net - Accrued Interest Writeoff (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accrued Interest, Writeoff	$ 11	$ 5
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Accrued Interest, Writeoff	0	3
Commercial Real Estate Portfolio Segment [Member] | Residential Mortgage [Member]
Accrued Interest, Writeoff	4	1
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Accrued Interest, Writeoff	5	0
Commercial and Agricultural Loans [Member]
Accrued Interest, Writeoff	0	1
Consumer Portfolio Segment [Member] | Home Equity Line of Credit [Member]
Accrued Interest, Writeoff	0	0
Consumer Portfolio Segment [Member] | Other Consumer Loans [Member]
Accrued Interest, Writeoff	$ 2	$ 0