Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
Stock-Based Compensation - Effects of Stock-Based Compensation Related to Stock Option Awards (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation $ 189 $ 519 $ 731 $ 1,395
Cost of revenues        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation 52 122 233 250
Research and development        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation 13 11 44 110
General and administrative        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation 101 356 399 949
Sales and marketing        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation $ 23 $ 30 $ 55 $ 86