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Acquisition of Atoll GmbH (Detail)
6 Months Ended 12 Months Ended
Apr. 01, 2016
USD ($)
$ / shares
shares
Jun. 30, 2016
USD ($)
$ / shares
Dec. 31, 2015
$ / shares
Jun. 30, 2016
EUR (€)
Apr. 01, 2016
EUR (€)
Business Acquisition [Line Items]          
Common stock, par value | $ / shares   $ 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 | shares 538,700        
Common stock, par value | $ / shares $ 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 $ 928,000   € 836,000  
Fair value of net assets acquired 25,266,000        
Business acquisition, transaction costs 1,119,000        
Fair value of acquired finite lived intangible assets | €         € 6,640,000
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