Segment Information (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2021 USD ($) Segment	Sep. 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	$ 14,686	$ 12,922		$ 41,312	$ 44,967
Operating loss	(579)	(371)		(4,127)	(8,357)
Litigation	0	952		0	91
Loss on impairment	(3)	0	$ (4,300)	(3)	(4,302)
Interest expense, net	(32)	(128)		(135)	(556)
Gain on derivative instruments, net	0	31		0	35
Other income, net	12,215	(77)		16,853	(24)
Income (loss) before income taxes	11,604	(545)		12,591	(8,902)
Performance [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Revenue	7,375	7,257		21,318	25,240
Operating loss	(466)	(74)		(3,000)	(2,041)
Workforce Solutions [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Revenue	7,311	5,665		19,994	19,727
Operating loss	$ (110)	$ (1,249)		$ (1,124)	$ (2,105)