Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
HTM, allowance for credit losses	$ 0	$ 0
HTM, fair value	130,550	130,902
Held for investment, allowance for credit loss	$ 14,005	$ 13,894
Preferred Stock, par value (in dollars per share)	$ 1,000	$ 1,000
Preferred Stock, Shares Authorized (in shares)	82,949	82,949
Preferred Stock, Shares Issued (in shares)	82,949	82,949
Preferred Stock, Shares Outstanding (in shares)	82,949	82,949
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	5,000,000	5,000,000
Common stock, issued (in shares)	3,458,407	3,458,050
Common stock, outstanding (in shares)	3,186,903	3,186,571
Treasury stock, shares (in shares)	271,504	271,479