Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands |
Mar. 31, 2020 |
Mar. 31, 2019 |
---|---|---|
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | $ 51,398 | $ 48,968 |
Less - accumulated depreciation and amortization | 33,811 | 31,897 |
Property, plant and equipment, net | 17,587 | 17,071 |
Land [Member] | ||
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | 171 | 171 |
Buildings and Leasehold Improvements [Member] | ||
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | 19,393 | 19,263 |
Machinery and Equipment [Member] | ||
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | 30,474 | 29,530 |
Construction in Progress [Member] | ||
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | $ 1,360 | $ 4 |