Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Revenues		$ 65,126	$ 62,840	$ 185,406	$ 178,843
Cost of revenues		23,331	23,086	69,341	66,385
Gross profit		41,795	39,754	116,065	112,458
Operating expense:
Selling		9,986	10,450	30,715	30,415
General and administrative		18,805	18,472	54,526	52,754
Research and development		5,029	5,053	15,061	14,422
Total operating expense		33,820	33,975	100,302	97,591
Operating income		7,975	5,779	15,763	14,867
Non-operating expense (income):
Interest expense and amortization of debt issuance costs		3,036	2,842	8,096	9,340
Gain on extinguishment of convertible notes		0	0	0	(2,887)
Other expense (income), net		343	5,154	(5,940)	2,914
Total non-operating expense, net		3,379	7,996	2,156	9,367
Earnings (loss) before income taxes		4,596	(2,217)	13,607	5,500
Income tax expense (benefit)		966	(541)	2,759	360
Net income (loss)		$ 3,630	$ (1,676)	$ 10,848	$ 5,140
Earnings (loss) per share:
Basic (in dollars per share)		$ 0.66	$ (0.31)	$ 1.97	$ 0.95
Diluted (in dollars per share)		$ 0.65	$ (0.31)	$ 1.95	$ 0.94
Weighted-average common shares outstanding:
Basic (in shares)	[1]	5,532	5,429	5,504	5,413
Diluted (in shares)		5,565	5,429	5,552	5,464

[1] Weighted average outstanding shares includes awards that have not yet vested and are not yet legally outstanding, but for which all vesting criteria other than the passage of time have been satisfied. For example, this includes RSUs granted to retirement-eligible employees that are not subject to continued service requirements but have not yet vested.