Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Schedule of Stock-based Compensation Expense (Details)

v3.20.2
Stock-based Compensation - Schedule of Stock-based Compensation Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense $ 312 $ 307 $ 770 $ 5,911
Research and development        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense 64 93 195 269
Sales and marketing        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense 59 65 165 543
General and administrative        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense 173 114 371 5,044
Cost of revenues        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense $ 16 $ 35 $ 39 $ 55