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Intangible Assets - Fair Value of Acquired Identifiable Intangible Assets and Related Estimated Useful Lives (Detail) - USD ($)
$ in Thousands
Apr. 29, 2017
Jan. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 10,144 $ 6,880
Accumulated Amortization (1,914) (1,616)
Net Carrying Amount 8,249 5,264
Currency Translation Adjustment 19  
Customer Contract Relationships [Member] | Miltope [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 3,100 3,100
Accumulated Amortization (1,190) (1,108)
Net Carrying Amount 1,910 1,992
Customer Contract Relationships [Member] | RITEC [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 2,830 2,830
Accumulated Amortization (271) (207)
Net Carrying Amount 2,559 2,623
Non-Competition Agreement [Member] | RITEC [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 950 950
Accumulated Amortization (348) (301)
Net Carrying Amount 602 $ 649
Non-Competition Agreement [Member] | TrojanLabel ApS [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 937  
Accumulated Amortization (23)  
Net Carrying Amount 919  
Currency Translation Adjustment 5  
Existing Technology [Member] | TrojanLabel ApS [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 2,327  
Accumulated Amortization (82)  
Net Carrying Amount 2,259  
Currency Translation Adjustment $ 14