Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.2
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, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation $ 102 $ 268 $ 260 $ 542
Cost of revenues        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation 28 90 56 181
Research and development        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation 7 16 15 31
General and administrative        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation 62 140 178 298
Sales and marketing        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Total stock-based compensation $ 5 $ 22 $ 11 $ 32