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Appcito Acquisition (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 23, 2016
Jun. 30, 2016
Dec. 31, 2015
Jun. 30, 2015
Dec. 31, 2014
Business Acquisition [Line Items]          
Goodwill   $ 1,307 $ 72 $ 72 $ 72
Appcito, Inc.          
Business Acquisition [Line Items]          
Total purchase price consideration $ 6,500        
Fair value of the purchase price consideration 6,300        
Cash consideration 5,000        
Holdback held to cover indemnification claims $ 700        
Unregistered shares of common stock issued (shares) 227,404        
Fair value of common stock issued $ 1,300        
Goodwill $ 1,235        
Legal, accounting and other professional fees incurred   $ 200      
Business Combination Tax Amortization Period 15 years        
Developed technology | Appcito, Inc.          
Business Acquisition [Line Items]          
Estimated useful life 5 years