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7. FINANCIAL INSTRUMENTS (Details) $ in Thousands | Dec. 31, 2020 USD ($) | Mar. 31, 2020 USD ($) item | Nov. 23, 2015 item
--- | --- | --- | ---
Fair value measurements |  |  |
Short-term investments | $ 9,196 | $ 15,061 |
Long-term investments | 10,126 | $ 4,117 |
Measurement input |  |  |
Fair value measurements |  |  |
Discount rate | item |  | 0.145 | 0.148
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 | 9,200 |  |
Long-term investments | 10,100 |  |
Other accrued expenses |  |  |
Fair value measurements |  |  |
Contingent consideration liability | 4,000 | $ 3,900 |
Recurring |  |  |
Fair value measurements |  |  |
Assets | 42,482 | 33,295 |
Liabilities | 3,972 | 3,898 |
Recurring | Money market funds |  |  |
Fair value measurements |  |  |
Money market funds | 23,160 | 14,117 |
Recurring | Marketable securities |  |  |
Fair value measurements |  |  |
Marketable securities | 19,322 | 19,178 |
Recurring | Level 1 |  |  |
Fair value measurements |  |  |
Assets | 23,160 | 14,117 |
Recurring | Level 1 | Money market funds |  |  |
Fair value measurements |  |  |
Money market funds | 23,160 | 14,117 |
Recurring | Level 2 |  |  |
Fair value measurements |  |  |
Assets | 19,322 | 19,178 |
Recurring | Level 2 | Marketable securities |  |  |
Fair value measurements |  |  |
Marketable securities | 19,322 | 19,178 |
Recurring | Level 3 |  |  |
Fair value measurements |  |  |
Liabilities | $ 3,972 | $ 3,898 |

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