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Transactions with Related Parties (Details) - USD ($) $ in Thousands |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jun. 25, 2021 | Nov. 19, 2017 | Feb. 29, 2020 | Jun. 30, 2021 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Notes receivable, related parties |  |  |  | $ 38 | $ 38 |  | $ 38
Exercise of stock options |  |  |  | 29 | 49 | $ 27 |
Proceeds from stock options exercised |  |  |  |  | 17 | 27 |
Repayment of note receivable |  |  | $ 44 |  | 0 | 44 |
Note receivable related party vested portion repayment |  |  | 43 |  |  |  |
Note receivable related party vested accrued interest repayment |  |  | $ 1 |  |  |  |
Note receivable related party forgiven | $ 278 |  |  |  |  |  |
Accrued interest receivable |  |  |  | $ 260 | $ 260 |  | $ 260
Inception Sciences |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Percentage of capital stock |  |  |  |  | 5.00% |  |
Service Agreements | Inception Sciences |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Expenses from transactions with related party |  |  |  |  | $ 0 | $ 1,315 |
Early Exercise of Employee Stock Options |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Notes receivable, related parties |  | $ 353 |  |  |  |  |
Exercise of stock options |  | $ 652 |  |  |  |  |
Expiry date |  | Nov. 29, 2022 |  |  |  |  |
Early Exercise of Employee Stock Options | Two Officers |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Notes receivable, related parties |  | $ 298 |  |  |  |  |
Proceeds from stock options exercised |  | $ 298 |  |  |  |  |
Percentage of portion of exercise cost paid by employees |  | 50.00% |  |  |  |  |
Percentage of portion of exercise cost converted in to notes receivable |  | 50.00% |  |  |  |  |
Early Exercise of Employee Stock Options | Other Officer |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Notes receivable, related parties |  | $ 55 |  |  |  |  |
Related party transaction, rate |  | 2.00% |  |  |  |  |

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