Revenue (Tables)

9 Months Ended

Sep. 30, 2021

Revenue From Contract With Customer [Abstract]

Schedule of Disaggregation of Revenue

Disaggregation of revenue

	Three months ended September 30,						Nine months ended September 30,
	2021			2020			2021			2020
Minerva ES		46.1	%		45.0	%		46.8	%		59.5	%
Genesys HTA		31.2	%		35.4	%		32.0	%		26.2	%
Symphion		22.0	%		18.7	%		20.2	%		13.6	%
Other		0.7	%		0.9	%		1.0	%		0.7	%
		100	%		100	%		100	%		100	%

Schedule of Contract Balance

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

	September 30,		December 31,
	2021		2020
Accounts receivable	$	6,758	$	8,379
Contract liability—current	$	262	$	219