Note 4 - Loans Leases Receivable - Amortized Cost Basis of Collateral (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	$ 78,721	$ 84,376
Collateral Dependent Loans
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	58,677
Commercial Assets
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	3,201
Non Owner-Occupied Real Estate
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	36,185
Owner Occupied Real Estate
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	8,859
Securities
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	134
Equipment
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	9,998
Other
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	300
Owner Occupied Commercial Real Estate Loans [Member] | Collateral Dependent Loans
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	3,841
Owner Occupied Commercial Real Estate Loans [Member] | Owner Occupied Real Estate
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	3,841
CRE - non owner occupied | Collateral Dependent Loans
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	25,006
CRE - non owner occupied | Non Owner-Occupied Real Estate
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	25,006
Commercial Portfolio Segment [Member] | Collateral Dependent Loans
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	16,094
Commercial Portfolio Segment [Member] | Commercial Assets
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	3,201
Commercial Portfolio Segment [Member] | Owner Occupied Real Estate
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	2,471
Commercial Portfolio Segment [Member] | Securities
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	134
Commercial Portfolio Segment [Member] | Equipment
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	9,997
Commercial Portfolio Segment [Member] | Other
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	291
Commercial Portfolio Segment [Member] | C&I - revolving | Collateral Dependent Loans
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	2,638
Commercial Portfolio Segment [Member] | C&I - revolving | Commercial Assets
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	2,518
Commercial Portfolio Segment [Member] | C&I - revolving | Equipment
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	120
Commercial Portfolio Segment [Member] | C&I - other | Collateral Dependent Loans
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	13,456
Commercial Portfolio Segment [Member] | C&I - other | Commercial Assets
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	683
Commercial Portfolio Segment [Member] | C&I - other | Owner Occupied Real Estate
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	2,471
Commercial Portfolio Segment [Member] | C&I - other | Securities
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	134
Commercial Portfolio Segment [Member] | C&I - other | Equipment
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	9,877
Commercial Portfolio Segment [Member] | C&I - other | Other
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	291
Construction and Land Development [Member] | Collateral Dependent Loans
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	10,436
Construction and Land Development [Member] | Non Owner-Occupied Real Estate
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	10,362
Construction and Land Development [Member] | Owner Occupied Real Estate
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	74
Direct financing leases | C&I - other | Commercial Assets
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	847
1-4 family real estate | Collateral Dependent Loans
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	2,950
1-4 family real estate | Non Owner-Occupied Real Estate
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	817
1-4 family real estate | Owner Occupied Real Estate
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	2,133
Consumer | Collateral Dependent Loans
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	350
Consumer | Owner Occupied Real Estate
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	340
Consumer | Equipment
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	1
Consumer | Other
Amortized cost basis of collateral dependent loans, Individually evaluated for credit losses	$ 9