Revenue

3 Months Ended

Mar. 31, 2022

Revenue from Contract with Customer [Abstract]

Revenue

4. Revenue

Disaggregation of revenue

	Three Months Ended March 31
	2022	2021
Minerva ES	44.0%	46.4%
Genesys HTA	30.3%	32.8%
Symphion	25.1%	19.4%
Other	0.6%	1.4%
	100%	100%

For the three month periods ended on March 31, 2022 and 2021, approximately 99.4% and 98.6% of the Company’s revenue is subject to point-in-time recognition for single-use (disposable) products and capital equipment. Sale of extended warranties on capital equipment represents less than 1.0% and 1.4% of the Company’s revenue for the three month periods ended on March 31, 2022 and 2021. In addition, as of March 31, 2022 and 2021, more than 97.0% and 95.8% of the Company’s total revenue is derived from the sale of single-use (disposable) products; therefore, the Company did not include disaggregated revenue data to present the amounts attributed to capital equipment, associated warranties, and miscellaneous revenue separately.

Contract balances

The Company’s contract balances consist of the following (in thousands):

	March 31,		December 31,
		2022		2021
Accounts receivable	$	7,150	$	7,292
Contract liability—current (see "Note 6")	$	281	$	206