Quarterly report pursuant to Section 13 or 15(d)

Equity Incentive Plans - Schedule of Stock-Based Compensation Expense Recorded in Condensed Consolidated Statements of Operations (Details)

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Equity Incentive Plans - Schedule of Stock-Based Compensation Expense Recorded in Condensed Consolidated Statements of Operations (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense $ 905 $ 648 $ 1,659 $ 1,075
Cost of Revenues        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense 214 75 347 132
Sale and Marketing        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense 273 199 539 265
Research and Development        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense 103 68 190 108
General and Administrative        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense $ 315 $ 306 $ 583 $ 570