Note 18 - Stock-based Compensation - SARs Activity (Details) - Stock Appreciation Rights (SARs) [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Outstanding (in shares)		440	435	515
Outstanding, aggregate intrinsic value	[1]	$ 9,774	$ 6,297	$ 12,784	$ 16,854
Outstanding, weighted average fair value (in dollars per share)		$ 8.69	$ 6.86	$ 6.02	$ 5.08
Outstanding, weighted average remaining contractual life (Year)		5 years 3 months 18 days	4 years 8 months 12 days	5 years 1 month 6 days	5 years 1 month 6 days
Granted (in shares)		42	29	34
Granted, aggregate intrinsic value	[1]	$ 0	$ 0	$ 0
Granted, weighted average fair value (in dollars per share)		$ 13.75	$ 16.81	$ 12.07
Exercised (in shares)		(142)	(24)	(114)
Exercised, aggregate intrinsic value	[1]	$ 5,617	$ 681	$ 5,258
Exercised, exercised weighted average fair value (in dollars per share)		$ 4.51	$ (3.58)	$ 3.63
Forfeited (in shares)		0	0	0
Exercised (in dollars per share)		$ (4.51)	$ 3.58	$ (3.63)
Outstanding (in shares)		340	440	435	515
Outstanding, exercise price (in dollars per share)		$ 43.41
Vested and exercisable (in shares)		240
Vested and exercisable, aggregate intrinsic value	[1]	$ 7,610
Vested and exercisable, weighted average fair value (in dollars per share)		$ 6.89
Vested and exercisable, weighted average remaining contractual life (Year)		4 years 2 months 12 days
Unvested (in shares)		100
Unvested, aggregate intrinsic value	[1]	$ 2,164
Unvested, weighted average fair value (in dollars per share)		$ 13
Unvested, weighted average remaining contractual life (Year)		3 years 3 months 18 days
Outstanding (in shares)		340	440	435	515
Outstanding, exercise price (in dollars per share)		$ 43.41
Vested in the current year (in shares)		46
Vested in the current year, aggregate intrinsic value	[1]	$ 1,139
Vested in the current year, weighted average fair value (in dollars per share)		$ 9.66
Minimum [Member]
Outstanding, exercise price (in dollars per share)		19.44	$ 19.37	$ 15.24
Granted, exercise price (in dollars per share)		47.95	60.76	47.17
Exercised, exercise price (in dollars per share)		22.96	19.37	15.24
Outstanding, exercise price (in dollars per share)		25.76	19.44	19.37	$ 15.24
Vested and exercisable, exercise price (in dollars per share)		25.76
Unvested, exercise price (in dollars per share)		37.3
Outstanding, exercise price (in dollars per share)		25.76	19.44	19.37	15.24
Vested in the current year, exercise price (in dollars per share)		36.65
Maximum [Member]
Outstanding, exercise price (in dollars per share)		74.92	74.92	50.71
Granted, exercise price (in dollars per share)		54.92	60.76	74.92
Exercised, exercise price (in dollars per share)		40	19.37	40
Outstanding, exercise price (in dollars per share)		74.92	74.92	74.92	50.71
Vested and exercisable, exercise price (in dollars per share)		74.92
Unvested, exercise price (in dollars per share)		74.92
Outstanding, exercise price (in dollars per share)		74.92	74.92	74.92	50.71
Vested in the current year, exercise price (in dollars per share)		60.76
Weighted Average [Member]
Outstanding, exercise price (in dollars per share)		38.11	35.6	31.16
Granted, exercise price (in dollars per share)		49.2	60.76	55.45
Exercised, exercise price (in dollars per share)		28.74	19.37	21.55
Outstanding, exercise price (in dollars per share)		43.41	38.11	35.6	31.16
Vested and exercisable, exercise price (in dollars per share)		39.86
Unvested, exercise price (in dollars per share)		51.92
Outstanding, exercise price (in dollars per share)		43.41	$ 38.11	$ 35.6	$ 31.16
Vested in the current year, exercise price (in dollars per share)		$ 47.01

[1] Aggregate intrinsic value for SARs is defined as the amount by which the current market price of the underlying stock exceeds the exercise or grant price.