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Segment Information - Net Sales and Segment Operating Profit for Each Reporting Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Apr. 30, 2016 | May. 02, 2015
Segment Reporting Information [Line Items] |  |
Net Sales | $ 24,110 | $ 22,206
Corporate Expenses | 1,651 | 1,457
Operating Income | 1,547 | 1,448
Other Income (Expense)-Net | (52) | 234
Income Before Income Taxes | 1,495 | 1,682
Income Tax Provision | 476 | 471
Net Income | 1,019 | 1,211
Operating Segments [Member] |  |
Segment Reporting Information [Line Items] |  |
Operating Income | 3,198 | 2,905
Operating Segments [Member] | Product Identification [Member] |  |
Segment Reporting Information [Line Items] |  |
Net Sales | 16,606 | 15,644
Operating Income | 1,996 | 1,977
Operating Segments [Member] | T&M [Member] |  |
Segment Reporting Information [Line Items] |  |
Net Sales | 7,504 | 6,562
Operating Income | $ 1,202 | $ 928

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