Note 16 - Financial Derivatives - Cash Flow Swap Hedges (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Loss, net of taxes (1)		$ 5,813	$ 3,614	$ (3,478)
Interest Rate Swap [Member]
Notional		204,300
Interest Rate Swap [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]
Notional		$ 0	$ 119,136
Weighted average fixed rate-pay		0.00%	2.61%
Weighted average variable rate-receive		0.00%	0.16%
Loss, net of taxes (1)		$ 0	$ (3,276)
Periodic net settlement of swaps	[1]	$ 772	$ 2,949

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