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Summary of Significant Accounting Policies - Narrative (Details) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2021 USD ($) segment installment | Dec. 31, 2020 USD ($) | Aug. 31, 2021 USD ($) | Jun. 30, 2021 USD ($) | Mar. 31, 2021 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Restricted cash | $ 100,000 | $ 100,000 |  |  |
Contract with customer, timing of performance obligation and payment | Collection of the Company's net revenues from payors is normally a function of providing complete and correct billing information to the healthcare insurers and generally occurs within 30 to 90 days of billing |  |  |  |
Revenue recognized | $ 700,000 | 800,000 |  |  |
Revenue | 48,299,000 | 41,975,000 |  |  |
Advertising Expense | $ 1,700,000 | 1,300,000 |  |  |
Dividend yield | 0.00% |  |  |  |
Number of annual vesting installments | installment | 4 |  |  |  |
Number of operating segments | segment | 1 |  |  |  |
Janssen Promotion Agreement |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Termination of agreement |  |  | $ 600,000 |  |
Minimum |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Property, plant and equipment, useful life | 3 years |  |  |  |
Joint venture, quarterly promotion fee per prescription |  | 750 |  |  |
Joint venture, quarterly promotion fee |  |  |  | $ 300,000 | $ 300,000
Maximum |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Property, plant and equipment, useful life | 5 years |  |  |  |
Joint venture, quarterly promotion fee per prescription |  | 1,250 |  |  |
Shipping and Handling |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Cost of revenue | $ 2,100,000 | $ 1,400,000 |  |  |
Revenue Benchmark | Supplier Concentration Risk | Two Suppliers |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Concentration risk percentage | 97.00% | 97.00% |  |  |
Revenue Benchmark | AVISE CTD Test | Product Concentration Risk |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Concentration risk percentage | 81.00% | 70.00% |  |  |
Janssen (SIMPONI) |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Revenue | $ 1,200,000 | $ 5,100,000 |  |  |
Other assets |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Restricted cash | $ 100,000 |  |  |  |

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