Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.2
Product Warranty Liability - Reconciliation of the Changes in Product Warranty Liability (Detail) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Guarantees [Abstract]    
Balance at beginning of period $ 359 $ 366
(Income) expense for product warranties (19) 27
Product warranty claims paid (35) (35)
Balance at end of period $ 305 $ 358