Quarterly report pursuant to Section 13 or 15(d)

Product Warranty Liability - Reconciliation of the Changes in Product Warranty Liability (Detail)

v3.21.2
Product Warranty Liability - Reconciliation of the Changes in Product Warranty Liability (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Guarantees [Abstract]        
Balance at beginning of period $ 522 $ 305 $ 626 $ 359
BNI warranty accrual acquired     169  
(Income) expense for product warranties (5) 14 (21) (5)
Product warranty claims paid (68) (11) (325) (46)
Balance at end of period $ 449 $ 308 $ 449 $ 308