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11. RELATED PARTY TRANSACTIONS (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Mar. 31, 2025
Related Party Transaction [Line Items] |  |  |  |  |
Accounts payable | $ 1,190,000 |  | $ 1,190,000 |  | $ 991,000
Wistron Neweb Corp |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Manufacturing services | 24,000 | $ 14,000 | $ 40,000 | $ 22,000 |
Related party |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Operating Cost and Expense, Related Party, Name [Extensible Enumeration] |  |  | Wistron Neweb Corp |  | Wistron Neweb Corp
Accounts payable | $ 17,000 |  | $ 17,000 |  | $ 8,000

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