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FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Mar. 31, 2023
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | $ 31,214 | $ 37,309
Level I |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 0 | 184
Level II |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 31,214 | 37,125
Level III |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 0 | 0
Corporate debt securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 20,505 | 23,617
Corporate debt securities | Level I |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 0 | 0
Corporate debt securities | Level II |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 20,505 | 23,617
Corporate debt securities | Level III |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 0 | 0
U.S. treasury securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 10,186 | 12,990
U.S. treasury securities | Level I |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 0 | 0
U.S. treasury securities | Level II |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 10,186 | 12,990
U.S. treasury securities | Level III |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 0 | 0
Common stock |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value |  | 184
Common stock | Level I |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value |  | 184
Common stock | Level II |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value |  | 0
Common stock | Level III |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value |  | 0
Certificates of deposit |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 523 | 518
Certificates of deposit | Level I |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 0 | 0
Certificates of deposit | Level II |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | 523 | 518
Certificates of deposit | Level III |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total asset measured at fair value | $ 0 | $ 0

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