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2. REVENUE RECOGNITION - Revenue disaggregated (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Net revenues	$ 6,444	$ 4,550	$ 12,727	$ 9,221
Contract manufacturers
Disaggregation of Revenue [Line Items]
Net revenues	261	660	674	1,071
Distribution
Disaggregation of Revenue [Line Items]
Net revenues	6,046	3,865	11,840	8,106
OEMs
Disaggregation of Revenue [Line Items]
Net revenues	$ 137	$ 25	$ 213	$ 44

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