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Nature of Operations, Segment Reporting and Geographical Information - Net Sales and Segment Operating Profit for Each Reporting Segment (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Jan. 31, 2014
Jan. 31, 2013
Segment Reporting Information [Line Items]    
Net Sales $ 68,592 $ 61,224
Segment Operating Profit 7,809 7,489
Product Replacement Costs 672  
Segment Operating Profit % of Net Sales 11.40% 12.20%
Corporate Expenses 5,604 4,563
Operating Income 1,533 2,926
Other Expense 121 41
Income from Continuing Operations before Income Taxes 1,412 2,885
Income Tax Provision for Continuing Operations 175 847
Income from Continuing Operations 1,237 2,038
Income from Discontinued Operations, Net of Taxes 1,975 8,729
Net Income 3,212 10,767
T&M [Member]
    
Segment Reporting Information [Line Items]    
Net Sales 19,527 17,636
Segment Operating Profit 2,655 3,109
Segment Operating Profit % of Net Sales 13.60% 17.60%
QuickLabel [Member]
    
Segment Reporting Information [Line Items]    
Net Sales 49,065 43,588
Segment Operating Profit $ 5,154 $ 4,380
Segment Operating Profit % of Net Sales 10.50% 10.00%