Note 9 - Incentive Plans (Tables)

3 Months Ended

Mar. 31, 2025

Notes Tables

Shares Available Under Long-term Incentive Plan [Table Text Block]

	March 31, 2025			December 31, 2024
Approved and authorized shares		16,414,015			16,414,015
Shares subject to awards issued under plan		(15,807,337	)		(15,808,671	)
Shares available for future grant		606,678			605,344

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

	Stock Options			Average Exercise Price		Remaining Term in Years		Intrinsic Value (in thousands)
Outstanding at December 31, 2023		13,449,061		$	11.95		6.3	$	47,672
Forfeitures		(4,999	)	$	26,44
Outstanding at December 31, 2024		13,444,062		$	11.95		5.3	$	53,093
Forfeitures		(1,334	)	$	19.98
Outstanding at March 31, 2025		13,442,728		$	11.94		5.1	$	29,544
Vested at December 31, 2024		13,444,062		$	11.95		5.3	$	53,093
Exercisable at December 31, 2024		11,495,062		$	12.19		5.9	$	44,907
Vested at March 31, 2025		13,442,728		$	11.94		5.1	$	29,544
Exercisable at March 31, 2025		11,493,728		$	12.19		5.7	$	25,334