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Acquisitions - Additional Information (Detail) (USD $)
1 Months Ended 12 Months Ended
Jun. 13, 2012
Jun. 29, 2013
Aug. 31, 2012
Business Combinations [Abstract]      
Acquired outstanding common shares and voting interest of Pacinian 100.00%    
Fair value of the consideration transferred totaled $ 26,916,000    
Additional consideration to shareholders 5,000,000    
Additional consideration to shareholders in lieu of every unit shipped 10,000,000    
Rate per unit for consideration 0.60    
Contingent consideration 11,900,000    
Discount rate for additional consideration on product acceptance 5.10%    
Discount rate for additional consideration on product shipped 12.40%    
Net assets acquired     5,000,000
Payment of contingent consideration from financing activities   4,600,000  
Payment of contingent consideration from operating activities   400,000  
Acquisition related cost   $ 100,000