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v3.21.2

Debt (Tables) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Debt Disclosure [Abstract] |  |
Schedule of debt consists |
|  | September 30, 2021 |  | December 31, 2020
Senior secured loan, principal |  | $ | 85,987 |  |  | $ | 63,964 |
Senior secured loan, paid-in-kind interest |  |  | 4,231 |  |  |  | 3,554 |
Less unamortized discount and debt issuance costs |  |  | (8,026 | ) |  |  | (8,647 | )
|  | $ | 82,192 |  |  | $ | 58,871 |
|  | Year Ended December 31,
|  | 2020 |  | 2019
|  | (in thousands)
Senior secured loan, principal |  | $ | 63,964 |  |  | $ | 23,683 |
Senior secured loan, paid-in-kind interest |  |  | 3,554 |  |  |  | — |
Less unamortized discount and debt issuance costs |  |  | (8,647 | ) |  |  | (7,851 | )
|  | $ | 58,871 |  |  | $ | 15,832 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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