Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Accounts Receivable (Details)

v3.21.1
Summary of Significant Accounting Policies - Accounts Receivable (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Changes in the accounts receivable allowances    
Accounts receivable allowance, beginning balance $ 703 $ 5,298
Reduction in accounts receivable allowances (228)  
Additions charged to costs and expenses   431
Bad debt write-off (161) (5,026)
Accounts receivable allowance, ending balance $ 314 $ 703