8. LEASES - Maturity of lease liabilities (Details) - USD ($)	3 Months Ended	9 Months Ended
	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2019	Apr. 01, 2019	Mar. 31, 2019
Maturity of Lease Liabilities
2020 (Remaining three months)			$ 162,000
2021			526,000
2022			149,000
2023			7,000
Total			844,000
Less: Imputed interest			(39,000)
Total operating lease liabilities			805,000	$ 1,100,000
Current			575,000
Non-current			$ 230,000
Future minimum lease payments
2020					$ 477,000
2021					338,000
2022					83,000
2023					7,000
Total					$ 905,000
Rent expense	$ 154,000	$ 415,000