8. LEASES - Maturity of lease liabilities (Details) - USD ($)	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2020
Maturity of Lease Liabilities
2021			$ 512,000
2022			148,000
2023			7,000
Total			667,000
Less: Imputed interest			(27,000)
Total operating lease liabilities			640,000
Current			498,000
Non-current			$ 142,000
Future minimum lease payments
2020	$ 477,000
2021	338,000
2022	83,000
2023	7,000
Total	905,000
Rent expense	$ 566,000	$ 527,000