Note 13 - Subordinated Debentures - Subordinated Notes (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Face Value	$ 26,806
Carrying value	26,343
Commonwealth Statutory Trust III [Member]
Face Value	3,093
Carrying value	$ 3,040
Commonwealth Statutory Trust III [Member] | London Interbank Offered Rate (LIBOR) [Member]
Index	2.85%
Commonwealth Statutory Trust IV [Member]
Face Value	$ 12,372
Carrying value	$ 12,158
Commonwealth Statutory Trust IV [Member] | London Interbank Offered Rate (LIBOR) [Member]
Index	1.35%
Commonwealth Statutory Trust V [Member]
Face Value	$ 11,341
Carrying value	$ 11,145
Commonwealth Statutory Trust V [Member] | London Interbank Offered Rate (LIBOR) [Member]
Index	1.40%