Note 18 - Stock-based Compensation - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Expense	$ 3,773	$ 4,464	$ 4,394
Deferred tax benefit	(793)	(939)	(924)
Total net expense	2,980	3,525	3,470
Stock Appreciation Rights (SARs) [Member]
Expense	284	492	376
Deferred tax benefit	(60)	(104)	(79)
Total net expense	224	388	297
Restricted Stock [Member]
Expense	1,699	1,599	1,373
Deferred tax benefit	(357)	(336)	(289)
Total net expense	1,342	1,263	1,084
Restricted Stock Units (RSUs) [Member]
Expense	501	519	332
Deferred tax benefit	(105)	(109)	(70)
Total net expense	396	410	262
Performance Shares [Member]
Expense	1,289	1,854	2,313
Deferred tax benefit	(271)	(390)	(486)
Total net expense	$ 1,018	$ 1,464	$ 1,827