7. FINANCIAL INSTRUMENTS (Details) $ in Thousands	Jun. 30, 2020 USD ($) item	Mar. 31, 2020 USD ($) item
Fair value measurements
Short-term investments	$ 13,596	$ 15,061
Long-term investments	$ 4,863	$ 4,117
Measurement input
Fair value measurements
Discount rate \| item	0.148	0.145
Minimum
Fair value measurements
Probability rate		0.00
Maximum
Fair value measurements
Probability rate		0.10
Level 2 \| Marketable securities
Fair value measurements
Short-term investments	$ 13,600
Long-term investments	4,900
Other accrued expenses
Fair value measurements
Contingent consideration liability	3,900	$ 3,900
Recurring
Fair value measurements
Assets	47,457	33,295
Liabilities	3,922	3,898
Recurring \| Money market funds
Fair value measurements
Money market funds	28,998	14,117
Recurring \| Marketable securities
Fair value measurements
Marketable securities	18,459	19,178
Recurring \| Level 1
Fair value measurements
Assets	28,998	14,117
Recurring \| Level 1 \| Money market funds
Fair value measurements
Money market funds	28,998	14,117
Recurring \| Level 2
Fair value measurements
Assets	18,459	19,178
Recurring \| Level 2 \| Marketable securities
Fair value measurements
Marketable securities	18,459	19,178
Recurring \| Level 3
Fair value measurements
Liabilities	$ 3,922	$ 3,898

Probability rate for the remaining contingent events.

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