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Stock-based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Stock Option Activity | A summary of activity for the six months ended June 30, 2021 is as follows:
|  | Options |  |  | Weighted Average Exercise Price |  | Aggregate Intrinsic Value (in $,000) |
Outstanding as of December 31, 2020 |  |  | 531,336 |  |  | $ | 10.01 |  |  |  |
Granted |  |  | 560,227 |  |  | $ | 2.70 |  |  |  |
Cancelled/forfeited |  |  | (673 | ) |  | $ | 1,619.00 |  |  |  |
Outstanding as of June 30, 2021 |  |  | 1,090,890 |  |  | $ | 5.26 |  | $ | 343 |
Vested as of June 30, 2021 |  |  | 221,635 |  |  | $ | 16.00 |  | $ | 89 |
Vested and expected to be vested as of June 30, 2021 |  |  | 998,345 |  |  | $ | 5.47 |  | $ | 317 |

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