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Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) segment	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
New Accounting Pronouncement, Early Adoption [Line Items]
Restricted cash	$ 200		$ 200		$ 200
Revenue recognized in previous periods	3,100	$ 1,500	5,100	$ 1,800
Allowance for credit losses	0	0	0	0
Advertising expense	400	400	$ 600	700
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	$ 1,700	$ 1,300
Revenue | Product Concentration Risk | AVISE CTD Test
New Accounting Pronouncement, Early Adoption [Line Items]
Percent of total revenue	90.00%	88.00%	90.00%	88.00%
Revenue | Supplier Concentration Risk | Two Major Suppliers
New Accounting Pronouncement, Early Adoption [Line Items]
Percent of total revenue	99.00%	95.00%	97.00%	96.00%

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