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FAIR VALUE MEASUREMENTS - Schedule of Cash, Cash Equivalents and Investments with Hierarchy (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Mar. 31, 2025
Sep. 30, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash and cash equivalents $ 75,872 $ 88,050 $ 117,400
Cash, cash equivalents and debt securities available-for-sale, amortized cost 76,684 89,324  
Cash, cash equivalents and debt securities available-for-sale 76,684 89,324  
Cash and Cash Equivalents      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash, cash equivalents and debt securities available-for-sale 75,872 88,050  
Restricted Cash (Current)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash, cash equivalents and debt securities available-for-sale 812 1,274  
Cash      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash and cash equivalents 58,729 64,765  
Cash and cash equivalents, fair value disclosure 58,729 64,765  
Cash | Cash and Cash Equivalents      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash and cash equivalents 57,917 63,953  
Cash | Restricted Cash (Current)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash and cash equivalents 812 812  
Money market funds | Level 1      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash and cash equivalents 17,955 24,559  
Cash and cash equivalents, fair value disclosure 17,955 24,559  
Money market funds | Cash and Cash Equivalents | Level 1      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash and cash equivalents 17,955 24,097  
Money market funds | Restricted Cash (Current) | Level 1      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash and cash equivalents $ 0 $ 462