8. LEASES - Operating leases (Details) $ in Thousands	12 Months Ended
	Mar. 31, 2020 USD ($)
Leases
Operating lease, option to extend	true
Operating lease, renewal term	5 years
Operating lease right-of-use assets	$ 617
Lease liabilities, current	498
Lease liabilities, non-current	142
Total operating lease liabilities	$ 640
Minimum
Leases
Operating lease, term of lease	5 months
Maximum
Leases
Operating lease, term of lease	25 months