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Summary of Significant Accounting Policies - Narrative (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2024
USD ($)
segment
Mar. 31, 2023
USD ($)
Dec. 31, 2023
USD ($)
New Accounting Pronouncement, Early Adoption [Line Items]      
Restricted cash $ 200   $ 200
Revenue recognized in previous periods 2,500 $ 300  
Advertising expense $ 300 300  
Number of operating segments | segment 1    
Restricted stock units      
New Accounting Pronouncement, Early Adoption [Line Items]      
Stock options, vesting period 4 years    
Shipping and Handling      
New Accounting Pronouncement, Early Adoption [Line Items]      
Cost of revenue $ 800 $ 700  
Revenue | Product Concentration Risk | AVISE CTD Test      
New Accounting Pronouncement, Early Adoption [Line Items]      
Percent of total revenue 90.00% 87.00%  
Revenue | Supplier Concentration Risk | Two Major Suppliers      
New Accounting Pronouncement, Early Adoption [Line Items]      
Percent of total revenue 92.00% 97.00%