12. SEGMENT AND GEOGRAPHIC INFORMATION - Revenue (Details) $ in Thousands	3 Months Ended
Jun. 30, 2026 USD ($) segment	Jun. 30, 2025 USD ($)
Net revenues by geographic area
Number of reporting units \| segment	1
Net revenues	$ 6,312	$ 6,283
United States
Net revenues by geographic area
Net revenues	2,554	4,472
China
Net revenues by geographic area
Net revenues	1,234	404
Singapore
Net revenues by geographic area
Net revenues	450	484
Netherlands
Net revenues by geographic area
Net revenues	162	103
Germany
Net revenues by geographic area
Net revenues	1,516	572
Rest of the world
Net revenues by geographic area
Net revenues	$ 396	$ 248

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details