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Summary of Significant Accounting Policies - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) segment	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
New Accounting Pronouncement, Early Adoption [Line Items]
Long-term debt	$ 19,410,000		$ 19,410,000
Restricted cash	200,000		200,000		$ 200,000
Revenue recognized in previous periods	1,500,000	$ (1,200,000)	1,800,000	$ (1,600,000)
Advertising expense	400,000	600,000	$ 700,000	900,000
Number of operating segments | segment			1
Other Long Term Debt
New Accounting Pronouncement, Early Adoption [Line Items]
Debt instrument	900,000		$ 900,000		800,000
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	18,500,000		$ 18,500,000		28,300,000
Debt instrument	19,100,000		19,100,000		$ 26,900,000
Shipping and Handling
New Accounting Pronouncement, Early Adoption [Line Items]
Cost of revenue	$ 600,000	$ 700,000	$ 1,300,000	$ 1,300,000
Revenue | Product Concentration Risk | AVISE CTD Test
New Accounting Pronouncement, Early Adoption [Line Items]
Percent of total revenue	88.00%	77.00%	88.00%	81.00%
Revenue | Supplier Concentration Risk | Two Major Suppliers
New Accounting Pronouncement, Early Adoption [Line Items]
Percent of total revenue	95.00%	97.00%	96.00%	96.00%

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