2. REVENUE RECOGNITION - Revenue disaggregated (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Net revenues	$ 20,518	$ 21,765	$ 29,691
Contract Manufacturers
Disaggregation of Revenue [Line Items]
Net revenues	1,614	4,450	5,882
Distribution
Disaggregation of Revenue [Line Items]
Net revenues	18,809	16,636	23,023
OEMs
Disaggregation of Revenue [Line Items]
Net revenues	$ 95	$ 679	$ 786