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Equity Incentive Plans | 3 Months Ended
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Mar. 31, 2022
Share-based Payment Arrangement [Abstract] |
Equity Incentive Plans | Note 12. Equity Incentive Plans Stock options: A summary of option activities under the 2005 Stock Plan, as amended in January 2010 and November 2012 (the "2005 Plan") and 2017 Equity Incentive Plan (the “2017 Plan") during the three months ended March 31, 2022 is as follows:
|  | Number of Options Outstanding |  |  | Weighted Average Exercise Price |
Outstanding as of December 31, 2021 |  |  | 783,928 |  |  | $ | 28.00 |
Granted |  |  | 454,678 |  |  | $ | 26.50 |
Exercised |  |  | (8,528 | ) |  | $ | 1.43 |
Canceled |  |  | (11,699 | ) |  | $ | 38.20 |
Outstanding as of March 31, 2022 |  |  | 1,218,379 |  |  | $ | 27.51 |
Under an “evergreen” provision, the number of shares of common stock reserved for issuance under the 2017 Plan will automatically increase on January 1 of each year, beginning on January 1, 2018 and ending on and including January 1, 2027, by 5% of the total number of shares of the Company's capital stock outstanding on December 31 of the preceding calendar year or a lesser number of shares determined by the Board. In accordance with the evergreen provision, the number of shares of common stock reserved for issuance under the 2017 Plan was increased on January 1, 2022 by 585,172 shares, which was equal to 5% of the total number of shares of capital stock outstanding on December 31, 2021. Restricted stock units: A summary of restricted stock unit ("RSU") activities under the 2017 Plan during the three months ended March 31, 2022 is as follows:
|  | Number of Restricted Stock Units |  |  | Weighted Average Grant Date Fair Value per RSU |
Unvested awards outstanding as of December 31, 2021 |  |  | 128,810 |  |  | $ | 35.09 |
Granted |  |  | 154,379 |  |  | $ | 26.50 |
Vested |  |  | (22,755 | ) |  | $ | 25.35 |
Unvested awards outstanding as of March 31, 2022 |  |  | 260,434 |  |  | $ | 30.85 |
2017 Employee Stock Purchase Plan There were no shares issued under the 2017 Employee Stock Purchase Plan ("2017 ESPP') during the three months ended March 31, 2022. The 2017 ESPP contains an “evergreen” provision that provides for an automatic annual share increase on January 1 of each year, in an amount equal to the lesser of (1) 2% of the total number of shares of common stock outstanding on December 31 st of the preceding calendar year, (2) 150,000 shares or (3) such number of shares as determined by the Board. In accordance with the evergreen provision, the number of shares of common stock reserved for issuance under our 2017 ESPP was increased on January 1, 2022 by 150,000 shares. The number of shares available for grant under the 2017 ESPP was 549,328 as of March 31, 2022. Total stock-based compensation expense associated with the 2005 Plan, 2017 Plan and 2017 ESPP is recorded in the condensed consolidated statements of operations and was allocated as follows (in thousands):
|  | Three Months Ended March 31, |
|  | 2022 |  |  | 2021 |
Cost of revenues |  | $ | 456 |  |  | $ | 392 |
Sales and marketing |  |  | 463 |  |  |  | 371 |
Research and development |  |  | 234 |  |  |  | 181 |
General and administrative |  |  | 702 |  |  |  | 431 |
Total |  | $ | 1,855 |  |  | $ | 1,375 |

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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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