Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Accounting Policy Information (Details)

v3.22.2.2
Basis of Presentation and Accounting Policy Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Mar. 31, 2022
Mar. 31, 2021
Error Corrections and Prior Period Adjustments Restatement [Line Items]            
Cash and cash equivalents $ 31,866 $ 38,242 $ 31,866 $ 38,242 $ 41,445  
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows 34,545 41,336 34,545 41,336 $ 43,931 $ 42,450
Prepaid Expenses and Other Current Assets            
Error Corrections and Prior Period Adjustments Restatement [Line Items]            
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows 2,655 2,745 2,655 2,745    
Other Assets            
Error Corrections and Prior Period Adjustments Restatement [Line Items]            
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows 24 349 24 349    
COVID-19 | Cost of Sales            
Error Corrections and Prior Period Adjustments Restatement [Line Items]            
Adjustments to Income Statement $ 547   $ 1,248      
COVID-19 | Marketing, general and administrative and engineering            
Error Corrections and Prior Period Adjustments Restatement [Line Items]            
Adjustments to Income Statement   $ 186   $ 500