Note 9 - Incentive Plans - Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Outstanding, options (in shares)	13,449,061	11,517,228	9,983,727
Outstanding, weighted average exercise price (in dollars per share)	$ 11.95	$ 12.2	$ 10.19
Outstanding, term (Year)	5 years 3 months 18 days	6 years 3 months 18 days	7 years 10 months 24 days	8 years 8 months 12 days
Outstanding, intrinsic value	$ 53,093	$ 47,672	$ 128,429	$ 44,395
Awards granted, options (in shares)		1,949,000	1,564,500
Awards granted, weighted average exercise price (in dollars per share)		$ 10.5	$ 25.09
Exercised, options (in shares)		(11,834)	(12,000)
Exercised, weighted average exercise price (in dollars per share)		$ 12.52	$ 10
Forfeitures, options (in shares)	(4,999)	(5,333)	(18,999)
Forfeitures, weighted average exercise price (in dollars per share)	$ 26.44	$ 24.83	$ 18.66
Outstanding, options (in shares)	13,444,062	13,449,061	11,517,228	9,983,727
Outstanding, weighted average exercise price (in dollars per share)	$ 11.95	$ 11.95	$ 12.2	$ 10.19
Vested, options (in shares)	13,444,062	13,387,074
Vest, weighted average exercise price (in dollars per share)	$ 11.95	$ 11.88
Vest, remaining term (Year)	5 years 3 months 18 days	6 years 3 months 18 days
Vest, intrinsic value	$ 53,093	$ 47,672
Exercisable, options (in shares)	11,495,062	11,438,074
Exercisable, weighted average exercise price (in dollars per share)	$ 12.19	$ 12.12
Exercisable remaining term (Year)	5 years 10 months 24 days	6 years 10 months 24 days
Exercisable, intrinsic value	$ 44,907	$ 40,383