(Unaudited) | ||||||||||||||||
Three Months Ended June 30, | Six Months Ended June 30, | |||||||||||||||
2020 | 2019 | 2020 | 2019 | |||||||||||||
Cost of revenue – software | $ | 552 | $ | 279 | $ | 918 | $ | 343 | ||||||||
Research and development | 1,830 | 579 | 3,258 | 937 | ||||||||||||
Sales and marketing | 1,273 | 475 | 2,000 | 937 | ||||||||||||
General and administrative | 879 | 747 | 1,529 | 1,075 | ||||||||||||
Total stock-based compensation expense | $ | 4,534 | $ | 2,080 | $ | 7,705 | $ | 3,292 | ||||||||