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Investments and Fair Value Measurement - Additional Information (Details) - USD ($)
12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Investments [Line Items]    
Investments in debt securities $ 1,000,000  
Cash and cash equivalents 2,901,000 $ 15,301,000
Interest income on investments in debt securities 100,000  
Liquidation of equity securities 700,000  
(Loss) gain on investment in equity securities 12,000 29,000
Purchase of equity securities 0 1,061,000
Sale of equity securities 0 $ 384,000
Fair value of investment in equity securities 0  
Maximum [Member]    
Investments [Line Items]    
Unrealized gains on investments in debt securities 100,000  
(Loss) gain on investment in equity securities $ 100,000