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Revenue and Accounts Receivable Credit Concentration (Tables) | 9 Months Ended
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Sep. 30, 2025
Revenue from Contract with Customer [Abstract] |
Summary of Revenue | Revenues consisted of the following (in thousands):
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Diagnostic Tests |  | $ | 19,835 |  |  | $ | 17,168 |  |  | $ | 54,049 |  |  | $ | 47,503 |
Development Services |  |  | 1,933 |  |  |  | 983 |  |  |  | 5,695 |  |  |  | 3,391 |
Total revenues |  | $ | 21,768 |  |  | $ | 18,151 |  |  | $ | 59,744 |  |  | $ | 50,894 |
Summary of Revenue and Accounts Receivable by Third-party Payors and Other Customers | The Company’s customers in excess of 10% of total revenue and their related revenue as a percentage of total revenue were as follows:
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
United Healthcare |  |  | 11 | % |  |  | 7 | % |  |  | 8 | % |  |  | 8 | %
The Company’s third-party payors and other customers in excess of 10% of accounts receivable, and their related accounts receivable as a percentage of total accounts receivable were as follows:
|  | As of |  |
|  | September 30, 2025 |  |  | December 31, 2024 |  |
Medicare |  |  | 16 | % |  |  | 21 | % |
Bio-Rad Laboratories, Inc. |  |  | 22 | % |  |  | — |  |
Daiichi Sankyo |  |  | — |  |  |  | 14 | % |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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- Definition Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-20 + Details
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