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Commitment and Contingencies - Narrative (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2021 | May 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020
Loss Contingencies [Line Items] |  |  |  |
Rent expense |  |  | $ 900 | $ 600
Period for royalties to begin | 18 months |  |  |
Purchase obligation, due in next twelve months |  |  | 3,700 |
Purchase obligation, due in second year |  |  | $ 6,000 |
Annual increase in purchase commitments |  |  | 15.00% |
AHN Collaboration |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Collaboration agreement, collaboration expenses |  |  | $ 300 |
Minimum | Licensing Agreements |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Royalty obligation, percent of net sales |  |  | 1.50% |
Maximum | Licensing Agreements |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Royalty obligation, percent of net sales |  |  | 7.00% |
Prometheus Laboratories |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Payments to acquire intellectual property |  |  | $ 100 |
Future minimum royalty commitment |  |  | 1,200 |
Advance royalties payment |  |  | $ 100 |
Prometheus Laboratories | Minimum |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Royalty obligation, percent of net sales |  |  | 2.50% |
Allegheny Health Network Research Institute |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Collaboration fee |  | $ 400 |  |
Allegheny Health Network Research Institute | Licensing Agreements |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Initial license fee |  | $ 400 |  |
Queen Mary University Of London | Licensing Agreements |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Initial license fee | $ 400 |  |  |
One time payment | $ 100 |  |  |
Office and Laboratory |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Operating leases, renewal term |  |  | 5 years |
Office |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Operating leases, renewal term |  |  | 5 years |

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