Segment Information (Details) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2021 USD ($) Segment	Jun. 30, 2020 USD ($)
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Number of reportable business segments | Segment				2
Contract term				2 years
Segment Reporting Information, Profit (Loss) [Abstract]
Revenue	$ 13,522	$ 14,340		$ 26,626	$ 32,045
Operating loss	(1,361)	(1,853)		(3,548)	(7,986)
Litigation	0	(861)		0	(861)
Loss on impairment	0	0	$ (4,300)	0	(4,302)
Interest expense, net	(49)	(187)		(103)	(428)
Gain on derivative instruments, net	0	47		0	4
Other income, net	4,637	24		4,638	53
Income (loss) before income taxes	3,227	(1,969)		987	(8,357)
Performance Segment [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Revenue	6,862	8,273		13,943	17,984
Operating loss	(1,131)	(695)		(2,534)	(1,967)
NITC Segment [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Revenue	6,660	6,067		12,683	14,061
Operating loss	$ (230)	$ (297)		$ (1,014)	$ (856)