Note 17 - Share Plans (Tables)

12 Months Ended

Dec. 31, 2025

Notes Tables

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Year Ended December 31,
	2025			2024			2023
Weighted average grant date fair value per share	$	72.16		$	59.30		$	57.73
Assumptions:
Expected stock price volatility		50	%		49	%		45	%
Risk free interest rate		4.10	%		4.19	%		3.64	%
Expected annual dividend per share	$	-		$	-		$	-
Expected life of options (years)		6.25			6.25			6.25

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

	Number of Options			Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value ($ in thousands)
Outstanding as of December 31, 2022		1,268,404			81.35		4.9	$	47,764
Granted		208,392			119.31
Exercised		(159,316	)		42.46
Forfeited		(33,144	)		185.81
Outstanding as of December 31, 2023		1,284,336			89.64		5.0	$	75,587
Granted		118,681			112.66
Exercised		(310,201	)		57.20
Forfeited		(63,265	)		152.06
Outstanding as of December 31, 2024		1,029,551			96.10		4.9	$	78,310
Granted		62,817			135.79
Exercised		(41,070	)		90.23
Forfeited		(41,564	)		183.49
Outstanding as of December 31, 2025		1,009,734			95.28		4.0	$	58,823
Exercisable as of December 31, 2025		792,351			84.65		3.0	$	55,872

Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

	Shares			Weighted-Average Grant-Date Fair Value
Non-vested as of December 31, 2022		378,298		$	203.04
Granted		425,099			117.62
Vested		(133,222	)		175.94
Forfeited		(44,789	)		213.80
Non-vested as of December 31, 2023		625,386			153.01
Granted		503,937		$	120.77
Vested		(206,435	)		177.28
Forfeited		(115,135	)		130.89
Non-vested as of December 31, 2024		807,753			127.07
Granted		409,762		$	139.44
Vested		(245,059	)		139.27
Forfeited		(114,500	)		126.10
Non-vested as of December 31, 2025		857,956			127.21