Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Effects of Stock-Based Compensation Related to Stock Option Awards (Details)

v3.7.0.1
Stock-Based Compensation - Effects of Stock-Based Compensation Related to Stock Option Awards (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation $ 441 $ 490 $ 876 $ 1,024
Cost of revenues        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation 69 67 128 136
Research and development        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation 49 45 99 95
General and administrative        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation 293 352 593 739
Sales and marketing        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation $ 30 $ 26 $ 56 $ 54