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Acquisitions - Additional Information (Detail) - USD ($)
3 Months Ended
Jul. 31, 2015
Mar. 31, 2017
Mar. 25, 2016
Dec. 30, 2016
Business Acquisition [Line Items]        
Change in the fair value of the contingent earn out   $ 310,000 $ 421,000  
Miconex [Member]        
Business Acquisition [Line Items]        
Percentage of shareholding interest acquired 100.00%      
Cash paid for acquisition $ 15,600,000      
Business acquisition, potential cash earn-out payments   600,000   $ 300,000
Business acquisition, potential cash payments period 2 years      
Change in the fair value of the contingent earn out   $ 300,000    
Miconex [Member] | Maximum [Member]        
Business Acquisition [Line Items]        
Business acquisition, potential cash earn-out payments $ 4,000,000     $ 2,000,000
Miconex [Member] | Common Stock [Member]        
Business Acquisition [Line Items]        
Shares of newly issued common stock 500,000