11. RELATED PARTY TRANSACTION (Details) - USD ($)	3 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Mar. 31, 2022
Related Party Transaction [Line Items]
Amount owed to WNC	$ 30,000		$ 32,000
Non-Recurring Engineering Services \| Wistron Neweb Corp
Related Party Transaction [Line Items]
Non-recurring engineering service expense	$ 57,000	$ 13,000

Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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