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Acquisitions - Additional Information (Detail) - USD ($)
Apr. 30, 2018
Jul. 07, 2017
Tag and Label Company [Member]    
Business Acquisition [Line Items]    
Total purchase consideration $ 4,700,000  
Contingent consideration payable, period 3 years  
Tag and Label Company [Member] | Maximum [Member]    
Business Acquisition [Line Items]    
Contingent consideration payable $ 500,000  
Tag Company [Member]    
Business Acquisition [Line Items]    
Total purchase consideration   $ 1,400,000