Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2022

Revenue from Contract with Customer [Abstract]

Schedule of Revenues Recognized

Revenue recognized for each revenue stream is as follows:

Financial Statement Caption	Revenue Stream	Three Months Ended June 30,				Six Months Ended June 30,
Product revenue:		2022		2021		2022		2021
	Pellet procedures	$	32,458	$	27,441	$	63,266	$	52,851
	Dietary supplements		7,949		6,646		13,653		12,220
	Disposable trocars		368		214		601		413
	Shipping fees		14		6		27		16
Total product revenue			40,789		34,307		77,547		65,500
Service revenue:
	Training		356		206		521		316
	Contract-term services		214		237		434		477
Total service revenue			570		443		955		793
Total revenue		$	41,359	$	34,750	$	78,502	$	66,293

Revenue recognized by geographic region is as follows:

Financial Statement Caption	Country	Three Months Ended June 30,				Six Months Ended June 30,
Product revenue:		2022		2021		2022		2021
	United States	$	40,686	$	34,219	$	77,376	$	65,381
	All other		103		88		171		119
Total product revenue			40,789		34,307		77,547		65,500
Service revenue:
	United States		563		443		947		793
	All other		7		—		8		—
Total service revenue			570		443		955		793
Total revenue		$	41,359	$	34,750	$	78,502	$	66,293

Summary of Significant Changes in Contract Liability Balances

Significant changes in contract liability balances are as follows:

	Six Months Ended June 30,
	2022						2021
Description of change	Deferred Revenue			Deferred Revenue, Long-term			Deferred Revenue			Deferred Revenue, Long-term
Revenue recognized that was included in the contract liability balance at the beginning of the period	$	(1,123	)	$	—		$	(1,293	)	$	—
Increases due to cash received, excluding amounts recognized as revenue during the period		885			446			715			456
Transfers between current and non-current liabilities due to the expected revenue recognition period		403			(403	)		450			(450	)
Total increase (decrease) in contract liabilities	$	165		$	43		$	(128	)	$	6

Summary of Consideration Allocated to Performance Obligations

Consideration allocated to performance obligations are as follows:

	June 30,		December 31,
	2022		2021
Unsatisfied training obligations - Current	$	93	$	67
Unsatisfied contract-term services - Current		973		849
Unsatisfied contract-term services - Long-term		572		544
Total allocated to unsatisfied contract-term services		1,545		1,393
Unsatisfied pellet procedures - Current		789		789
Unsatisfied pellet procedures - Long-term		281		258
Total allocated to unsatisfied pellet procedures		1,070		1,047
Total deferred revenue - Current	$	1,855	$	1,705
Total deferred revenue - Long-term	$	853	$	802