Note 10 - Subordinated Debentures - Subordinated Notes (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Mar. 31, 2025
Face Value		$ 26,806
Carrying value		26,806
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) [Member]
Commonwealth Statutory Trust III [Member]
Face Value		3,093
Carrying value		3,093
Debt Instrument, Basis Spread on Variable Rate	2.85%
Commonwealth Statutory Trust IV [Member]
Face Value		12,372
Carrying value		12,372
Debt Instrument, Basis Spread on Variable Rate	1.35%
Commonwealth Statutory Trust V [Member]
Face Value		11,341
Carrying value		$ 11,341
Debt Instrument, Basis Spread on Variable Rate	1.40%