Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues	$ 34,004	$ 27,680	$ 64,258	$ 50,360
Cost of revenues	25,418	25,710	49,390	46,169
Gross margin	8,586	1,970	14,868	4,191
Operating expenses:
Research and development	1,641	2,314	3,493	4,992
Selling, general and administrative	7,946	7,350	15,815	14,911
Amortization of acquisition-related intangibles	538	688	1,076	1,369
Change in fair value of contingent consideration	850	(290)	2,200	(120)
Restructuring	(20)	0	(14)	0
Total operating expenses	10,955	10,062	22,570	21,152
Operating loss	(2,369)	(8,092)	(7,702)	(16,961)
Interest income, net	194	45	368	70
China dissolution	0	(1,921)	0	(1,921)
Other income (expense), net	(204)	73	(321)	240
Loss before income tax expense (benefit)	(2,379)	(9,895)	(7,655)	(18,572)
Income tax expense (benefit)	106	(14)	228	18
Net loss	$ (2,485)	$ (9,881)	$ (7,883)	$ (18,590)
Net loss per common share
Basic (in dollars per share)	$ (0.09)	$ (0.35)	$ (0.28)	$ (0.67)
Diluted (in dollars per share)	$ (0.09)	$ (0.35)	$ (0.28)	$ (0.67)
Weighted average number of common shares outstanding
Basic (in shares)	28,828	27,867	28,545	27,714
Diluted (in shares)	28,828	27,867	28,545	27,714

The amount of expense recognized in the current period that reflects the allocation of capitalized costs associated with acquisition of business. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Name:	us-gaap_AmortizationOfAcquisitionCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.