Revenue (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) Stream	Sep. 30, 2020 USD ($)
Disaggregation of Revenue [Abstract]
Revenue	$ 14,686	$ 12,922	$ 41,312	$ 44,967
Number of distinct revenue streams | Stream			3
Contract with Customer, Asset and Liability [Abstract]
Revenue recognized in the period from amounts included in billings in excess of revenue earned at the beginning of the period	835	1,520	$ 4,139	6,221
Performance Improvement Solutions [Member]
Disaggregation of Revenue [Abstract]
Revenue	7,375	7,257	21,318	25,240
Performance Improvement Solutions [Member] | System Design and Build [Member]
Disaggregation of Revenue [Abstract]
Revenue	1,623	2,473	4,712	9,535
Performance Improvement Solutions [Member] | System Design and Build [Member] | Over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	1,623	2,473	4,712	9,535
Performance Improvement Solutions [Member] | Software and Support [Member]
Disaggregation of Revenue [Abstract]
Revenue	814	942	2,393	2,575
Performance Improvement Solutions [Member] | Software and Support [Member] | Point in Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	52	444	274	1,084
Performance Improvement Solutions [Member] | Software and Support [Member] | Over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	762	498	2,119	1,491
Performance Improvement Solutions [Member] | Training and Consulting [Member]
Disaggregation of Revenue [Abstract]
Revenue	4,937	3,842	14,212	13,130
Performance Improvement Solutions [Member] | Training and Consulting [Member] | Point in Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	42	19	126	48
Performance Improvement Solutions [Member] | Training and Consulting [Member] | Over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	4,895	3,823	14,086	13,082
Workforce Solutions [Member]
Disaggregation of Revenue [Abstract]
Revenue	7,311	5,665	19,994	19,727
Workforce Solutions [Member] | Training and Consulting [Member]
Disaggregation of Revenue [Abstract]
Revenue	7,312	5,665	19,995	19,727
Workforce Solutions [Member] | Training and Consulting [Member] | Point in Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	126	0	375	0
Workforce Solutions [Member] | Training and Consulting [Member] | Over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	$ 7,186	$ 5,665	$ 19,620	$ 19,727