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Revenue and Accounts Receivable Credit Concentration - Additional Information (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($) Test | Dec. 31, 2023 USD ($)
Disaggregation Of Revenue [Line Items] |  |
Sources of revenue, description | We derive our revenue from two sources: (i) Lung Diagnostic Testing, providing lung diagnostic testing services for healthcare providers associated with our five blood-based tests and (ii) Development Services, providing diagnostic testing services to biopharmaceutical, life sciences, and diagnostic companies. |
Revenue recognized | $ 900 |
Deferred revenue | $ 678 | $ 324
Number of blood based lung cancer test | Test | 5 |
Revenue | Minimum | Customer Concentration Risk | Medicare |  |
Disaggregation Of Revenue [Line Items] |  |
Concentration risk, percentage | 39.00% | 43.00%
Other Long-term Liabilities |  |
Disaggregation Of Revenue [Line Items] |  |
Non-current deferred revenue | $ 200 | $ 300
Up Front Cash Payments |  |
Disaggregation Of Revenue [Line Items] |  |
Deferred revenue | $ 1,300 |

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