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Accrued Expenses - Summary of Accrued Expenses (Detail) - USD ($)
$ in Thousands
Mar. 31, 2020
Mar. 31, 2019
Payables And Accruals [Abstract]    
Accrued compensation $ 829 $ 2,160
Accrued legal and professional fees 240 152
Other accrued expenses 21 237
Accrued expenses $ 1,090 $ 2,549