Note 19 - Stock-based Compensation - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Expense	$ 1,035	$ 1,057	$ 2,187	$ 2,048
Deferred tax benefit	(217)	(222)	(460)	(431)
Total net expense	818	835	1,727	1,617
Stock Appreciation Rights (SARs) [Member]
Expense	105	94	205	187
Deferred tax benefit	(22)	(19)	(43)	(39)
Total net expense	83	75	162	148
Restricted Stock [Member]
Expense	394	350	806	682
Deferred tax benefit	(82)	(74)	(169)	(144)
Total net expense	312	276	637	538
Restricted Stock Units (RSUs) [Member]
Expense	133	87	265	172
Deferred tax benefit	(28)	(18)	(56)	(36)
Total net expense	105	69	209	136
Performance Shares [Member]
Expense	403	526	911	1,007
Deferred tax benefit	(85)	(111)	(192)	(212)
Total net expense	$ 318	$ 415	$ 719	$ 795