5. GOODWILL (Details) $ in Thousands	6 Months Ended	12 Months Ended
Sep. 30, 2022 USD ($) segment	Mar. 31, 2022 USD ($)
GOODWILL
Number of reporting units \| segment	1
Goodwill	$ 7,978	$ 7,978
Goodwill impairment		$ 0

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration