Condensed Consolidated Statements of Redeemable Non-Controlling Interest and Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Noncontrolling Interest [Member]	Common Stock Outstanding [Member]	Treasury Stock, Common [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance at Mar. 31, 2024	$ 0	$ 35,267	$ (76,794)	$ 0	$ 100,369	$ 58,842
Balance (in shares) at Mar. 31, 2024		7,289
Reissuance of treasury stock			0
Reissuance of treasury stock (in shares)						(0)
Share-based compensation	0	$ 0	0	288	0	$ 288
Purchase of additional shares of Amplex	(1,980)	0	0	1,980	0	1,980
Net income (loss)	66
Net income (loss)		0	0	0	(3,983)	(3,983)
Balance at Sep. 30, 2024	15,730	$ 67	(82,423)	39,940	95,017	52,601
Balance (in shares) at Sep. 30, 2024		6,654
Repurchase of common stock from dissenting shareholders	0	$ 0	(5,629)	5,629	0	0
Issuance of restricted stock awards	0	$ 0	0	0	0	0
Issuance of restricted stock awards (in shares)		17
Reclassification of dissenting shares to liability	0	$ (3,157)	0	0	(1,369)	(4,526)
Reclassification of dissenting shares to liability (in shares)		(652)
Redomestication from Canada to Delaware and reduction of par value	0	$ (32,043)	0	32,043	0	0
Acquisition of Amplex	17,644	0	0	0	0	$ 0
Balance at Jun. 30, 2024			(76,794)
Reissuance of treasury stock			0
Reissuance of treasury stock (in shares)						(0)
Net income (loss)						$ (681)
Balance at Sep. 30, 2024	15,730	$ 67	(82,423)	39,940	95,017	52,601
Balance (in shares) at Sep. 30, 2024		6,654
Balance at Mar. 31, 2025	13,880	$ 67	(82,423)	41,645	93,851	53,140
Balance (in shares) at Mar. 31, 2025		6,696
Reissuance of treasury stock	0	$ 0	496	(496)	0	$ 0
Reissuance of treasury stock (in shares)		0				59
Share-based compensation	0	$ 1	0	336	0	$ 337
Purchase of additional shares of Amplex	(1,800)	0	0	1,800	0	1,800
Net income (loss)	33
Net income (loss)		0	0	0	(1,500)	(1,500)
Balance at Sep. 30, 2025	12,113	$ 68	(81,927)	43,285	92,351	53,777
Balance (in shares) at Sep. 30, 2025		6,755
Balance at Jun. 30, 2025	13,908	$ 67	(82,321)	41,616	93,103	52,465
Balance (in shares) at Jun. 30, 2025		6,708
Reissuance of treasury stock	0	$ 0	394	(394)	0	$ 0
Reissuance of treasury stock (in shares)		0				47
Share-based compensation	0	$ 1	0	263	0	$ 264
Purchase of additional shares of Amplex	(1,800)	0	0	1,800	0	1,800
Net income (loss)	5
Net income (loss)		0	0	0	(752)	(752)
Balance at Sep. 30, 2025	$ 12,113	$ 68	$ (81,927)	$ 43,285	$ 92,351	$ 53,777
Balance (in shares) at Sep. 30, 2025		6,755