Note 15 - Financial Derivatives - Cash Flow Swap Hedges (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Unrealized loss, net of taxes		$ 1,104	$ 439	$ 4,158	$ 1,702
Interest Rate Swap [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]
Notional		$ 119,136		$ 119,136		$ 119,136
Weighted average fixed rate-pay		2.61%		2.61%		2.61%
Weighted average variable rate-receive		1.40%		1.40%		0.16%
Unrealized loss, net of taxes	[1]			$ 882		$ (3,276)
Periodic net settlement of swaps	[2]	$ 484	$ 731	$ 1,172	$ 1,442

[1] Included in other comprehensive income.

[2] the amount of periodic net settlement of interest rate swaps was included in interest expense.