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Acquisition of Atoll GmbH (Detail) - USD ($)
9 Months Ended 12 Months Ended
Apr. 01, 2016
Sep. 30, 2016
Dec. 31, 2015
Business Acquisition [Line Items]      
Common stock, par value   $ 0.01 $ 0.01
Finite lived intangible asset, useful life   12 years 10 years
Customer relationships      
Business Acquisition [Line Items]      
Finite lived intangible asset, useful life   11 years 9 years
Technology - developed      
Business Acquisition [Line Items]      
Finite lived intangible asset, useful life   13 years 12 years
Atoll GmbH      
Business Acquisition [Line Items]      
Stock consideration 538,700    
Common stock, par value $ 0.01    
Value of common stock issued $ 14,138,000    
Business combination, consideration transferred 25,266,000    
Cash consideration 10,176,000    
Working capital adjustments 74,000    
Earnout consideration 1,100,000    
Estimated fair value of contingent consideration 952,000    
Fair value of net assets acquired 25,266,000    
Business acquisition, transaction costs 1,262,000    
Fair value of acquired finite lived intangible assets 7,561,000    
Atoll GmbH | Customer relationships      
Business Acquisition [Line Items]      
Fair value of acquired finite lived intangible assets $ 5,318,000    
Finite lived intangible asset, useful life 16 years    
Atoll GmbH | Technology - developed      
Business Acquisition [Line Items]      
Fair value of acquired finite lived intangible assets $ 2,175,000    
Finite lived intangible asset, useful life 14 years    
Atoll GmbH | Non-competition agreements      
Business Acquisition [Line Items]      
Fair value of acquired finite lived intangible assets $ 57,000    
Finite lived intangible asset, useful life 2 years    
Atoll GmbH | Trademark/ tradename      
Business Acquisition [Line Items]      
Fair value of acquired finite lived intangible assets $ 11,000    
Finite lived intangible asset, useful life 2 years    
Atoll GmbH | Up Front Payment      
Business Acquisition [Line Items]      
Cash consideration $ 10,200,000