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Nature of Operations, Segment Reporting and Geographical Information - Summary of Other Information by Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Segment Reporting Information [Line Items]
Assets	$ 139,207	$ 114,955
Depreciation and Amortization	3,916	3,994	$ 5,983
Capital Expenditures	229	1,796	2,587
Operating Segments [Member] | Product Identification [Member]
Segment Reporting Information [Line Items]
Assets	69,607	51,732
Depreciation and Amortization	2,219	1,157	1,835
Capital Expenditures	121	847	1,563
Operating Segments [Member] | T&M [Member]
Segment Reporting Information [Line Items]
Assets	60,730	50,374
Depreciation and Amortization	1,697	2,837	4,148
Capital Expenditures	108	949	$ 1,024
Corporate Expenses [Member]
Segment Reporting Information [Line Items]
Assets	$ 8,870	$ 12,849

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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