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Concentration of Credit Risk
12 Months Ended
Mar. 31, 2022
Concentration of Credit Risk [Abstract]  
Concentration of Credit Risk 6. Concentration of Credit RiskWe maintain our cash and cash equivalent balances in either bank depository accounts or money market mutual funds. The money market mutual funds are limited to investments in low-risk securities such as U.S. or government agency obligations, or repurchase agreements secured by such securities.