Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

v3.21.1
Commitments and Contingencies (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]      
Totaled arrangements under letter of credit guarantees and performance bonds securing performance obligations $ 6,905    
Guarantee obligations secured by cash deposits 1,066    
Cash deposits pledged as collateral on performance bonds and letters of credit 1,667 $ 2,769  
Guarantee obligations represented by a reduction of the available amount of the company's short term and long term revolving lines of credit 3,314    
Related Party Transaction, Expenses from Transactions with Related Party 1,768 2,679 $ 3,809
Indian Custom Bonds Outstanding 4,938    
Purchase Obligation, Fiscal Year Maturity [Abstract]      
2022 1,087    
2023 896    
Purchase Obligation 1,983    
Changes in the product liability      
Balance at beginning of period 477 365 300
Reserve for warranties issued during the period 217 160 300
Settlements made during the period (444) (48) (235)
Balance at end of period 250 $ 477 $ 365
Contract with Customer, Liability, Cumulative Catch-up Adjustment to Revenue, Change in Measure of Progress $ 4,380