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Business Combination (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jan. 08, 2014
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2014
Business Acquisition [Line Items]          
Business Combination, Acquisition Related Costs   $ 0 $ 0 $ 3,019  
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual         $ 11,900
Premium to be paid per share $ 0.15        
Business combination, payment of contingent consideration   0 1,304 2,225  
Goodwill   20,096 $ 20,445 21,563 $ 21,563
Business Acquisition, Goodwill, Expected Tax Deductible Amount   $ 5,800      
Cameleon Acquistion [Member]          
Business Acquisition [Line Items]          
Business Acquisition, Percentage of Voting Interests Acquired 81.70% 100.00%      
Percentage owned of outstanding warrants 94.00%        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill $ 18,653        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue 5,392        
Business Combination, Acquisition Related Costs       1,700  
Percentage ownership that triggers premium payment         95.00%
Goodwill- original estimate 16,200        
Goodwill, Purchase Accounting Adjustments       500  
Goodwill 15,717        
Business Combination, Consideration Transferred       $ 32,000  
Premium on shares [Member]          
Business Acquisition [Line Items]          
Business Combination, Contingent Consideration, Liability 2,700        
Free shares [Member]          
Business Acquisition [Line Items]          
Business Combination, Contingent Consideration, Liability $ 1,400