Note 19 - Stock-based Compensation - Unrecognized Stock-based Compensation Expense (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Remainder of 2024	$ 2,701
2025	2,510
2026	1,554
2027	1,134
2028	588
2029	48
Total estimated future expense	8,535
Stock Appreciation Rights (SARs) [Member]
Remainder of 2024	284
2025	336
2026	286
2027	216
2028	126
2029	11
Total estimated future expense	1,259
Restricted Stock [Member]
Remainder of 2024	1,330
2025	1,567
2026	1,268
2027	918
2028	462
2029	37
Total estimated future expense	5,582
Restricted Stock Units (RSUs) [Member]
Remainder of 2024	375
2025	1
2026	0
2027	0
2028	0
2029	0
Total estimated future expense	376
Performance Shares [Member]
Remainder of 2024	712
2025	606
2026	0
2027	0
2028	0
2029	0
Total estimated future expense	$ 1,318