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Credit Agreement - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Apr. 17, 2018
Sep. 28, 2017
Oct. 27, 2018
Jul. 28, 2018
Oct. 27, 2018
Oct. 27, 2018
Oct. 28, 2017
Nov. 30, 2017
Nov. 29, 2017
Sep. 27, 2017
Feb. 28, 2017
Line of Credit Facility [Line Items]                      
Credit facility, maximum borrowing capacity   $ 15,000,000               $ 10,000,000  
Initial upfront payment   $ 14,600,000         $ 14,873,000        
Proceeds from Borrowing under Revolving Credit Facility       $ 3,000,000   $ 3,000,000 $ 14,600,000        
Repayments on Borrowings under Revolving Credit Facility       $ 1,500,000   1,500,000          
Revolving Credit Facility     $ 1,500,000   $ 1,500,000 1,500,000          
Third Amendment [Member] | Maximum [Member]                      
Line of Credit Facility [Line Items]                      
Percentage of total assets to qualify as subsidiary 5.00%                    
Percentage of revenues to qualify as subsidiary 5.00%                    
Percentage of assets and revenues to qualify as subsidiary 10.00%                    
Term Loan [Member]                      
Line of Credit Facility [Line Items]                      
Principal amount of debt     15,000,000   15,000,000 15,000,000          
Term Loan [Member] | TrojanLabel ApS [Member]                      
Line of Credit Facility [Line Items]                      
Principal amount of debt     $ 9,200,000   $ 9,200,000 $ 9,200,000          
Revolving Credit Facility [Member]                      
Line of Credit Facility [Line Items]                      
Commitment fee rate         0.25%            
Annual interest rate     5.50%   5.50% 5.50%          
Accrued interest expense     $ 38,000   $ 38,000            
Credit facility, remaining borrowing capacity     $ 8,500,000   $ 8,500,000 $ 8,500,000          
Revolving Credit Facility [Member] | LIBOR [Member]                      
Line of Credit Facility [Line Items]                      
Interest rate basis spread         1.00%            
Revolving Credit Facility [Member] | Federal Funds Effective Swap Rate [Member]                      
Line of Credit Facility [Line Items]                      
Interest rate basis spread         0.50%            
Revolving Credit Facility [Member] | Minimum [Member]                      
Line of Credit Facility [Line Items]                      
Percentage added to variable rate         0.00%            
Revolving Credit Facility [Member] | Minimum [Member] | LIBOR [Member]                      
Line of Credit Facility [Line Items]                      
Interest rate basis spread         1.00%            
Revolving Credit Facility [Member] | Maximum [Member]                      
Line of Credit Facility [Line Items]                      
Percentage added to variable rate         0.50%            
Revolving Credit Facility [Member] | Maximum [Member] | LIBOR [Member]                      
Line of Credit Facility [Line Items]                      
Interest rate basis spread         1.50%            
Revolving Credit Facility [Member] | Second Amendment [Member]                      
Line of Credit Facility [Line Items]                      
Credit facility, maximum borrowing capacity               $ 10,000,000      
Revolving credit facility termination and maturity date         Nov. 30, 2022            
Bank of America, N.A. [Member] | Term Loan [Member]                      
Line of Credit Facility [Line Items]                      
Principal amount of debt               $ 15,000,000     $ 9,200,000
Bank of America, N.A. [Member] | Revolving Credit Facility [Member]                      
Line of Credit Facility [Line Items]                      
Credit facility, maximum borrowing capacity                     $ 10,000,000
Bank of America, N.A. [Member] | Revolving Credit Facility [Member] | Second Amendment [Member]                      
Line of Credit Facility [Line Items]                      
Credit facility, maximum borrowing capacity                 $ 15,000,000    
Revolving loan outstanding                 $ 14,600,000