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Segment Information - Net Sales and Segment Operating Profit (Loss) for Each Reporting Segment (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Apr. 30, 2022
May 01, 2021
Segment Reporting Information [Line Items]    
Revenue $ 31,010 $ 29,078
Corporate Expenses 2,560 2,344
Operating Income 764 735
Other Income (Expense), Net 279 369
Income Before Income Taxes 485 366
Income Tax Provision (Benefit) 60 (227)
Net Income 425 593
Product Identification [Member]    
Segment Reporting Information [Line Items]    
Revenue 21,724 23,098
T&M [Member]    
Segment Reporting Information [Line Items]    
Revenue 9,286 5,980
Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Operating Income 3,324 3,079
Operating Segments [Member] | Product Identification [Member]    
Segment Reporting Information [Line Items]    
Operating Income 1,413 2,729
Operating Segments [Member] | T&M [Member]    
Segment Reporting Information [Line Items]    
Operating Income 1,911 350
Corporate Expenses [Member]    
Segment Reporting Information [Line Items]    
Corporate Expenses $ 2,560 $ 2,344