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Concentration of Credit Risk	12 Months Ended
Concentration of Credit Risk	Mar. 31, 2020
Concentration of Credit Risk [Abstract]
Concentration of Credit Risk	5. Concentration of Credit Risk The Company maintains its cash and cash equivalent balances in either insured 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.