Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common stock [Member]	Treasury stock [Member]	Capital in excess of Stated value [Member]	Retained earnings [Member]	Accumulated other comprehensive income (loss) [Member]
Beginning balance at Mar. 31, 2022	$ 97,344	$ 9,482	$ (2,063)	$ 49,963	$ 40,018	$ (56)
Beginning balance (in shares) at Mar. 31, 2022		31,607
Beginning balance (in shares) at Mar. 31, 2022			(6,879)
Share-based compensation	12,778			12,778
Shares issued upon exercise of SSARs			$ 121	(121)
Shares issued upon exercise of SSARs, Shares			403
Shares withheld for taxes upon exercise of SSARs or vesting of restricted shares	(9,584)		$ (41)	(9,543)
Shares withheld for taxes upon exercise of SSARs or vesting of restricted shares (in shares)			(135)
Other common stock issuances, net			$ 99	(99)
Other common stock issuances, net (in shares)			331
Net income	14,582				14,582
Series A convertible preferred stock dividends	(1,836)				(1,836)
Unrealized translation adjustments	(3,974)					(3,974)
Ending balance at Mar. 31, 2023	109,310	$ 9,482	$ (1,884)	52,978	52,764	(4,030)
Ending balance (in shares) at Mar. 31, 2023		31,607
Ending balance (in shares) at Mar. 31, 2023			(6,280)
Share-based compensation	13,851			13,851
Shares issued upon exercise of SSARs			$ 63	(63)
Shares issued upon exercise of SSARs, Shares			211
Shares withheld for taxes upon exercise of SSARs or vesting of restricted shares	(6,535)		$ (25)	(6,510)
Shares withheld for taxes upon exercise of SSARs or vesting of restricted shares (in shares)			(81)
Other common stock issuances, net			$ 55	(55)
Other common stock issuances, net (in shares)			185
Net income	86,195				86,195
Conversion of Series A preferred stock	35,000	$ 521		34,479
Conversion of Series A preferred stock, Shares		1,735
Series A convertible preferred stock dividends	(1,204)				(1,204)
Unrealized translation adjustments	(140)					(140)
Ending balance at Mar. 31, 2024	$ 236,477	$ 10,003	$ (1,791)	94,680	137,755	(4,170)
Ending balance (in shares) at Mar. 31, 2024		3,342
Ending balance (in shares) at Mar. 31, 2024	5,965,426		(5,965)
Share-based compensation	$ 17,853			17,853
Shares issued upon exercise of SSARs			$ 190	(190)
Shares issued upon exercise of SSARs, Shares			630
Shares withheld for taxes upon exercise of SSARs or vesting of other grants	(3,583)		$ (11)	(3,572)
Shares withheld for taxes upon exercise of SSARs or vesting of other grants (in shares)			(34)
Other common stock issuances, net	1,026		$ 12	1,014
Other common stock issuances, net (in shares)			42
Net income	23,225				23,225
Series A convertible preferred stock dividends	(0)
Unrealized translation adjustments	(9,112)					(9,112)
Ending balance at Mar. 31, 2025	$ 265,886	$ 10,003	$ (1,600)	$ 109,785	$ 160,980	$ (13,282)
Ending balance (in shares) at Mar. 31, 2025		33,342
Ending balance (in shares) at Mar. 31, 2025	5,326,513		(5,327)