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Stock-based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2022
Share-Based Payment Arrangement [Abstract] |
Stock Option Activity | The activity for the Company’s 2009 Stock Option Plan, 2014 Plan, and 2015 Plan, for the nine months ended September 30, 2022, is summarized as follows:
|  | Number of Shares |  |  | Weighted- Average Exercise Price |  |  | Weighted- Average Remaining Contractual Life (in years) |  |  | Aggregate Intrinsic Value ($000) |
Outstanding — December 31, 2021 |  |  | 1,542,126 |  |  | $ | 14.89 |  |  |  | 7.45 |  |  | $ | 42 |
Granted |  |  | 664,000 |  |  | $ | 4.15 |  |  |  |  |  |  |
Forfeited/Cancelled |  |  | (81,124 | ) |  | $ | 7.42 |  |  |  |  |  |  |
Outstanding — September 30, 2022 |  |  | 2,125,002 |  |  | $ | 11.82 |  |  |  | 7.61 |  |  | $ | 49 |
Exercisable — September 30, 2022 |  |  | 1,052,080 |  |  | $ | 18.11 |  |  |  | 6.30 |  |  | $ | — |
Vested or expected to vest — September 30, 2022 |  |  | 2,125,002 |  |  | $ | 11.82 |  |  |  | 7.61 |  |  | $ | 49 |
Schedule of Restricted Stock Units ("RSU") Activity | Restricted stock unit (“RSU”) activity under the 2014 Plan and 2015 Plan for the nine months ended September 30, 2022, is summarized as follows:
|  | Number of Shares |  |  | Weighted Average Grant Date Fair Value Per Share |
Non-vested at December 31, 2021 |  |  | 133,834 |  |  | $ | 7.98 |
Granted |  |  | 943,465 |  |  | $ | 5.35 |
Vested |  |  | (48,131 | ) |  | $ | 8.29 |
Forfeited |  |  | (39,153 | ) |  | $ | 6.28 |
Non-vested at September 30, 2022 |  |  | 990,015 |  |  | $ | 5.52 |
Stock-Based Compensation Expense Related to Stock Options | Stock-based compensation expense related to stock options is included in the following line items in the accompanying unaudited condensed consolidated statements of operations (in thousands):
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Research and development |  | $ | 327 |  |  | $ | 174 |  |  | $ | 955 |  |  | $ | 436 |
Selling, general and administrative |  |  | 710 |  |  |  | 414 |  |  |  | 2,104 |  |  |  | 1,092 |
Total |  | $ | 1,037 |  |  | $ | 588 |  |  | $ | 3,059 |  |  | $ | 1,528 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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