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Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) segment	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
New Accounting Pronouncement, Early Adoption [Line Items]
Long-term debt	$ 29,346
Restricted cash	200	$ 100	$ 200
Revenue recognized in previous periods	300	200
Advertising expense	$ 300	300
Number of operating segments \| segment	1
Other Long Term Debt
New Accounting Pronouncement, Early Adoption [Line Items]
Debt instrument	$ 700
Restricted stock units
New Accounting Pronouncement, Early Adoption [Line Items]
Stock options, vesting period	4 years
2017 Term loan \| Level 2 \| Recurring
New Accounting Pronouncement, Early Adoption [Line Items]
Long-term debt	$ 28,400		28,300
Debt instrument	27,100		$ 26,900
Shipping and Handling
New Accounting Pronouncement, Early Adoption [Line Items]
Cost of revenue	$ 700	$ 600
Revenue \| Product Concentration Risk \| AVISE CTD Test
New Accounting Pronouncement, Early Adoption [Line Items]
Percent of total revenue	87.00%	84.00%
Revenue \| Supplier Concentration Risk \| Two Major Suppliers
New Accounting Pronouncement, Early Adoption [Line Items]
Percent of total revenue	97.00%	95.00%