Note 10 - Subordinated Debentures - Subordinated Notes (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Face Value	$ 26,806
Carrying value	$ 26,806
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	us-gaap:SecuredOvernightFinancingRateSofrMember
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%