Revenue (Tables)

12 Months Ended

Dec. 31, 2021

Revenue From Contract With Customer [Abstract]

Schedule of Disaggregation of Revenue

Disaggregation of revenue

	Years Ended December 31,
	2021	2020
Minerva ES	46.8%	55.4%
Genesys HTA	31.6%	28.5%
Symphion	20.6%	15.3%
Other	1.0%	0.9%
	100%	100%

Schedule of Contract Balance

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

	December 31,
		2021		2020
Accounts receivable	$	7,292	$	8,379
Contract liability—current (see "Note 6")	$	206	$	219