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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($)
$ in Thousands
Jan. 31, 2022
Jan. 31, 2021
Land and Land Improvement $ 1,004 $ 1,004
Buildings and Leasehold Improvements 12,666 12,642
Machinery and Equipment 23,238 23,346
Computer Equipment and Software 13,913 13,847
Gross Property, Plant and Equipment 50,821 50,839
Accumulated Depreciation (39,380) (38,828)
Net Property Plant and Equipment $ 11,441 $ 12,011