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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2023
Stock-Based Compensation [Abstract] |
Schedule of Options Outstanding | The following table summarizes the activity in the shares available for grant under the Plans during the years ended December 31, 2023 and 2022 and options outstanding as of December 31, 2023 and 2022. (in thousands, except exercise price):
|  |  |  |  | Options Outstanding |
|  |  |  |  |  |  |  | Weighted |
|  | Shares |  |  |  |  |  | Average |
|  | Available |  |  | Number of |  |  | Exercise |
|  | for Grant |  |  | Shares |  |  | Prices |
Balance as of December 31, 2021 |  |  | 76 |  |  |  | 39 |  |  | $ | 139.60 |
RSUs granted |  |  | (44 | ) |  |  | — |  |  |  | — |
RSUs cancelled and returned to the Plans |  |  | 7 |  |  |  | — |  |  |  | — |
Options cancelled |  |  | — |  |  |  | (2 | ) |  | $ | 250.80 |
Balance as of December 31, 2022 |  |  | 39 |  |  |  | 37 |  |  | $ | 132.80 |
RSUs granted |  |  | (5 | ) |  |  | — |  |  |  | — |
RSUs cancelled and returned to the 2019 Plan |  |  | 5 |  |  |  | — |  |  |  | — |
Options cancelled |  |  | — |  |  |  | (1 | ) |  | $ | 321.30 |
Balance as of December 31, 2023 |  |  | 39 |  |  |  | 36 |  |  | $ | 127.00 |
Schedule of Significant Ranges of Outstanding and Exercisable Options | The following table summarizes significant ranges of outstanding and exercisable options as of December 31, 2023 (in thousands, except contractual life and exercise price):
|  | Options Outstanding |  |  | Options Exercisable |
|  |  |  |  | Weighted |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  | Average |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  | Remaining |  |  | Weighted |  |  |  |  |  | Weighted |  |  |  |
|  |  |  |  | Contractual |  |  | Average |  |  |  |  |  | Average |  |  | Aggregate |
|  | Number |  |  | Life |  |  | Exercise |  |  | Number |  |  | Exercise |  |  | Intrinsic |
Range of Exercise Price |  | Outstanding |  |  | (in Years) |  |  | Price |  |  | Exercisable |  |  | Price |  |  | value |
$62.80 - $599.60 |  |  | 36 |  |  |  | 6.77 |  |  | $ | 105.20 |  |  |  | 26 |  |  | $ | 103.60 |  |  | $ | — |
$1,024.00 - $5,759.60 |  |  | — |  |  |  | 2.73 |  |  | $ | 4,050.80 |  |  |  | — |  |  | $ | 4,050.80 |  |  | $ | — |
$5,760.00 - $16,399.60 |  |  | — |  |  |  | 2.73 |  |  | $ | 5,760.00 |  |  |  | — |  |  | $ | 5,760.00 |  |  | $ | — |
$16,400.00 - $36,960.00 |  |  | — |  |  |  | 1.33 |  |  | $ | 16,400.00 |  |  |  | — |  |  | $ | 16,400.00 |  |  | $ | — |
$62.80 - $36,960.00 |  |  | 36 |  |  |  | 6.76 |  |  | $ | 122.80 |  |  |  | 26 |  |  | $ | 127.00 |  |  | $ | — |
Schedule of RSU Activity Under Plans | A summary of RSU activity under the Plans is presented below (in thousands, except for fair value):
|  |  |  |  | Weighted |
|  |  |  |  | Average |
|  | Number of |  |  | Grant-Date |
|  | Shares |  |  | Fair Value |
Non-vested shares as of December 31, 2021 |  |  | 2 |  |  | $ | 180.00 |
Granted |  |  | 44 |  |  | $ | 84.00 |
Vested |  |  | (15 | ) |  | $ | 91.60 |
Effect of business combination |  |  | (4 | ) |  | $ | 87.61 |
Non-vested shares as of December 31, 2022 |  |  | 27 |  |  | $ | 82.46 |
Granted |  |  | 4 |  |  | $ | 24.62 |
Vested |  |  | (14 | ) |  | $ | 75.72 |
Cancelled |  |  | (2 | ) |  | $ | 82.90 |
Non-vested shares as of December 31, 2023 |  |  | 15 |  |  | $ | 69.63 |

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