Note 4 - Loans/Leases Receivable - Adoption of ASU 2016-13 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Balance	$ 78,721	$ 84,376	$ 36,001
Provisions (credited) to expense	8,284	3,486	55,704
Balance	87,706	78,721	84,376
Accounting Standards Update 2016-13
Balance	(8,102)
Balance		(8,102)
Unfunded Loan Commitment
Balance	6,886
Provisions (credited) to expense	(1,334)	(2,231)
Balance	$ 5,552	6,886
Unfunded Loan Commitment | Accounting Standards Update 2016-13
Balance		$ 9,117
Balance			$ 9,117