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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2023
Stock-based Compensation [Abstract] |
Schedule of Unvested Restricted Stock Activity | Restricted Stock – A summary of unvested restricted stock activity is as follows (shares in thousands):
|  | Number of Shares |  |  | Weighted- Average Grant Date Fair Value Per Share |
Unvested at December 31, 2021 |  |  | 1,387 |  |  | $ | 3.30 |
Issued |  |  | 872 |  |  | $ | 6.21 |
Vested |  |  | (1,051 | ) |  | $ | 2.66 |
Canceled |  |  | (39 | ) |  | $ | 6.23 |
Unvested at December 31, 2022 |  |  | 1,169 |  |  | $ | 5.95 |
Issued |  |  | 2,375 |  |  | $ | 1.87 |
Vested |  |  | (547 | ) |  | $ | 5.61 |
Canceled |  |  | (56 | ) |  | $ | 3.14 |
Unvested at December 31, 2023 |  |  | 2,941 |  |  | $ | 2.77 |
Schedule of Common Stock at Vesting Aggregated | The fair value of the common stock at vesting aggregated $929,000, $6,900,000 and $8,810,000 for the years ended December 31, 2023, 2022 and 2021, respectively. Stock-based compensation expense related to employee and non-employee restricted stock and option grants recognized in the accompanying consolidated statements of operations, was as follows (in thousands):
|  | Years Ended December 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Employees |  | $ | 3,345 |  |  | $ | 2,689 |  |  | $ | 1,758 |
Non-employees |  |  | 551 |  |  |  | 644 |  |  |  | 1,125 |
Total stock-based compensation expense |  | $ | 3,896 |  |  | $ | 3,333 |  |  | $ | 2,883 |

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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 -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the change in restricted stock units (RSUs). + References No definition available. + Details
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