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Acquisition - Additional Information (Detail)
3 Months Ended 12 Months Ended
Feb. 01, 2017
USD ($)
Feb. 01, 2017
DKK
Apr. 29, 2017
USD ($)
Jan. 31, 2017
USD ($)
Feb. 01, 2017
DKK
Contingent Consideration Liability [Member]          
Business Acquisition [Line Items]          
Fair value key assumptions     Key assumptions in estimating the fair value of the contingent consideration liability include (1) the estimated earnout targets over the next seven years of $407,000-$1,280,000, (2) the probability of success (achievement of the various contingent events) from 1.6%-87.2% and (3) a risk-adjusted discount rate of approximately 1.77%-3.35% used to adjust the probability-weighted earnout payments to their present value.    
Estimated target period     7 years    
Estimated earnout targets     $ 1,280,000    
Estimated earnout targets     $ 407,000    
Intangible Assets [Member]          
Business Acquisition [Line Items]          
Internal rate of return     19.00%    
Fair value key assumptions     Key assumptions in estimating the fair value of the intangibles include (1) remaining life of existing technology acquired based on estimate of percentage of revenue from 0% -100% for each product, (2) the Company's internal rate of return of 19.0% and (3) a range of earnings projections from $121,000-$1,070,000.    
Intangible Assets [Member] | Contingent Consideration Liability [Member]          
Business Acquisition [Line Items]          
Estimated target period     7 years    
TrojanLabel ApS [Member]          
Business Acquisition [Line Items]          
Purchase price of acquisition $ 9,100,000 DKK 62,900,000      
Purchase price of acquisition amount held in escrow 900,000       DKK 6,400,000
Cash acquired from acquisition $ 100,000 DKK 976,000.0      
Additional contingent consideration period 7 years 7 years      
General and administrative expense     $ 700,000    
Goodwill not deductible for tax purposes $ 7,400,000        
TrojanLabel ApS [Member] | General and Administrative Expense [Member]          
Business Acquisition [Line Items]          
General and administrative expense     $ 100,000 $ 600,000  
TrojanLabel ApS [Member] | Earn-Out Payments, if 80% of Specified Earnings Targets are Achieved [Member]          
Business Acquisition [Line Items]          
Minimum percentage required to entitle additional contingent consideration 80.00% 80.00%      
Business acquisition contingent consideration potential earn-out payments $ 5,000,000       32,500,000
TrojanLabel ApS [Member] | Earn-Out Payments, if 100% of Specified Earnings Targets are Achieved [Member]          
Business Acquisition [Line Items]          
Minimum percentage required to entitle additional contingent consideration 100.00% 100.00%      
Business acquisition contingent consideration potential earn-out payments $ 5,800,000       40,600,000
TrojanLabel ApS [Member] | Earn-Out Payments, if 120% of Specified Earnings Targets are Achieved [Member]          
Business Acquisition [Line Items]          
Minimum percentage required to entitle additional contingent consideration 120.00% 120.00%      
Business acquisition contingent consideration potential earn-out payments $ 7,000,000       DKK 48,700,000
Minimum [Member] | Contingent Consideration Liability [Member]          
Business Acquisition [Line Items]          
Probability of success     1.60%    
Fair value assumptions, risk-adjusted discount rate     1.77%    
Minimum [Member] | Intangible Assets [Member]          
Business Acquisition [Line Items]          
Percentage of revenue on existing technology     0.00%    
Fair value assumptions, Earnings projections     $ 121,000    
Maximum [Member] | Contingent Consideration Liability [Member]          
Business Acquisition [Line Items]          
Probability of success     87.20%    
Fair value assumptions, risk-adjusted discount rate     3.35%    
Maximum [Member] | Intangible Assets [Member]          
Business Acquisition [Line Items]          
Percentage of revenue on existing technology     100.00%    
Fair value assumptions, Earnings projections     $ 1,070,000