Note 9 - Deposits (Details Textual) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Noninterest-Bearing Domestic Deposit, Brokered	$ 5,000,000	$ 5,000,000
Interest-Bearing Domestic Deposit, Brokered	$ 6,500,000	$ 6,000,000
Weighted Average Rate, Interest-Bearing Domestic Deposits, Point in Time	4.54%	0.30%
Deposit Liabilities Reclassified as Loans Receivable	$ 57,000	$ 98,000
Cash, FDIC Insured Amount	327,700,000	350,100,000
Time Deposits, at or Above FDIC Insurance Limit	$ 50,200,000	$ 30,300,000