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Stock Option Plan (Tables) | 12 Months Ended
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Dec. 31, 2024
Share-Based Payment Arrangement [Abstract] |
Schedule of Share-based Payment Arrangement, Restricted Stock Unit, Activity | RSU activity under the Company's 2019 Plan is set forth below:
|  | Number of Shares |  | Weighted- Average Grant Date Fair Value Per Share |  | Aggregate Intrinsic Value (in thousands)
Outstanding, December 31, 2023 |  | 1,387,459 |  |  | $ | 4.24 |  |  | $ | 2,761 |
Awards granted |  | 1,324,275 |  |  | $ | 2.11 |  |  |
Awards released |  | (413,202) |  |  | $ | 4.87 |  |  |
Awards canceled |  | (588,159) |  |  | $ | 4.11 |  |  |
Outstanding, December 31, 2024 |  | 1,710,373 |  |  | $ | 2.48 |  |  | $ | 7,013 |
Schedule of Stock Option Activity | Stock option activity under the 2019 Plan is set forth below:
|  | Number of Options |  | Weighted- Average Exercise Price Per Share |  | Weighted- Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value (in thousands)
Outstanding, December 31, 2023 |  | 986,819 |  |  | $ | 11.87 |  |  | 6.44 |  | $ | 228 |
Granted |  | 55,500 |  |  | $ | 1.99 |  |  |  |  |
Exercised |  | (85,124) |  |  | $ | 0.26 |  |  |  |  |
Forfeited |  | (9,623) |  |  | $ | 16.70 |  |  |  |  |
Expired |  | (458,276) |  |  | $ | 16.46 |  |  |  |  |
Outstanding, December 31, 2024 |  | 489,296 |  |  | $ | 8.39 |  |  | 6.53 |  | $ | 370 |
Vested and expected to vest, December 31, 2024 |  | 489,296 |  |  | $ | 8.39 |  |  | 6.53 |  | $ | 370 |
Options exercisable, December 31, 2024 |  | 468,706 |  |  | $ | 8.65 |  |  | 6.42 |  | $ | 332 |
Schedule of Non-cash Stock-based Compensation Expense | Total non-cash stock-based compensation expense recorded related to options granted, RSUs granted and stock purchase rights granted under the ESPP in the statement of operations is as follows (in thousands):
|  | Year Ended December 31,
|  | 2024 |  | 2023
Cost of revenue |  | $ | 159 |  |  | $ | 191 |
Selling, general and administrative |  | 1,374 |  |  | 3,174 |
Research and development |  | 230 |  |  | 252 |
Total |  | $ | 1,763 |  |  | $ | 3,617 |
Schedule of Common Stock Reserved For Future Issuance | Common stock reserved for future issuance consists of the following at December 31, 2024:
Warrants to purchase common stock |  | 1,130,281 |
Common stock option grants issued and outstanding |  | 489,296 |
Common stock reserved for issuance upon vesting of outstanding restricted stock units |  | 1,710,373 |
Common stock available for grant under the 2019 Plan |  | 2,189,228 |
Common stock available for future issuance under ESPP |  | 523,744 |
Total |  | 6,042,922 |

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