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Share-based Compensation | 6 Months Ended
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Jun. 30, 2020
Share-based Payment Arrangement [Abstract] |
Share-based Compensation | Share-based Compensation The Company included the following amounts for share-based compensation awards in the unaudited condensed consolidated statements of operations (in thousands):
| Three Months Ended June 30, |  |  |  | Six Months Ended June 30, |  |
| 2020 |  | 2019 |  | 2020 |  | 2019
Cost of revenues | $ | 759 |  |  | $ | 574 |  |  | $ | 987 |  |  | $ | 697 |
Research and development | 1,510 |  |  | 957 |  |  | 1,802 |  |  | 1,132 |
Sales and marketing | 816 |  |  | 818 |  |  | 1,279 |  |  | 1,032 |
General and administrative | 1,343 |  |  | 1,296 |  |  | 1,913 |  |  | 1,841 |
Total | $ | 4,428 |  |  | $ | 3,645 |  |  | $ | 5,981 |  |  | $ | 4,702 |
Stock Options The following table summarizes the Company’s stock option activity:
Outstanding — December 31, 2019 | 9,044,304 |  |  |  |  |  |  |
Granted | 1,209,500 |  |  |  |  |  |  |
Exercised | (442,193) |  |  |  |  |  |  |
Canceled | (314,967) |  |  |  |  |  |  |
Outstanding — June 30, 2020 | 9,496,644 |  |  |  |  |  |  |
Exercisable — June 30, 2020 | 3,990,056 |  |  |  |  |  |  |
At June 30, 2020, total unrecognized compensation expense related to stock options was $12.3 million, which is expected to be recognized over a weighted-average period of 2.75 years. Restricted Stock Units The following table summarizes the Company’s restricted stock unit (“RSU”) activity:
Non-vested — December 31, 2019 | 400,315 |
Granted | 315,137 |
Vested | (465,269) |
Forfeited | (1,250) |
Non-vested — June 30, 2020 | 248,933 |
At June 30, 2020, total unrecognized compensation expense related to RSUs was $0.6 million, which is expected to be recognized over a weighted-average period of 1.18 years.

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- Definition The entire disclosure for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 + Details
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