Revenue Recognition - Schedule of Revenues Recognized for Each Revenue Stream (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Total revenue	$ 41,359	$ 34,750	$ 78,502	$ 66,293
Pellet Procedures Product Revenue
Disaggregation of Revenue [Line Items]
Total revenue	32,458	27,441	63,266	52,851
Dietary Supplements
Disaggregation of Revenue [Line Items]
Total revenue	7,949	6,646	13,653	12,220
Disposable Trocars Product Revenue
Disaggregation of Revenue [Line Items]
Total revenue	368	214	601	413
Shipping Fees Product Revenue
Disaggregation of Revenue [Line Items]
Total revenue	14	6	27	16
Product Revenue
Disaggregation of Revenue [Line Items]
Total revenue	40,789	34,307	77,547	65,500
Training Service Revenue
Disaggregation of Revenue [Line Items]
Total revenue	356	206	521	316
Contract-Term Services Revenue
Disaggregation of Revenue [Line Items]
Total revenue	214	237	434	477
Service Revenue
Disaggregation of Revenue [Line Items]
Total revenue	$ 570	$ 443	$ 955	$ 793