Annual report pursuant to Section 13 and 15(d)

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

v3.19.1
Product Warranty Liability - Reconciliation of the Changes in Product Warranty Liability (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Guarantees [Abstract]    
Balance at beginning of year $ 493 $ 538
Expense for product warranties 234 528
Product warranty claims paid (276) (573)
Reclassification to liabilities held for sale (85)  
Balance at end of year $ 366 $ 493