Note 15 - Derivatives and Hedging Activities - Fair Value of Derivative Instruments (Details) - Interest Rate Swap [Member] - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Notional Amount	$ 279,419,000	$ 33,731,000
Other Assets [Member]
Derivative Assets Interest rate swaps	4,609,000	1,003,000
Other Liabilities [Member]
Derivative Liabilities Interest rate swaps	$ 4,857,000	$ 1,027,000