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Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) segment	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
New Accounting Pronouncement, Early Adoption [Line Items]
Restricted cash	$ 200		$ 200		$ 200
Revenue recognized in previous periods	600	$ 2,500	6,200	$ 2,600
Allowance for credit losses	0	0	0	0
Advertising expense	400	500	$ 1,000	1,200
Number of operating segments | segment			1
Restricted stock units
New Accounting Pronouncement, Early Adoption [Line Items]
Dividend yield			0.00%
Stock options, vesting period			4 years
Shipping and Handling
New Accounting Pronouncement, Early Adoption [Line Items]
Cost of revenue	$ 900	$ 600	$ 2,500	$ 1,900
Revenue | Product Concentration Risk | AVISE CTD Test
New Accounting Pronouncement, Early Adoption [Line Items]
Percent of total revenue	93.00%	89.00%	91.00%	88.00%
Revenue | Supplier Concentration Risk | Two Major Suppliers
New Accounting Pronouncement, Early Adoption [Line Items]
Percent of total revenue	98.00%	98.00%	97.00%	97.00%

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