Revenue (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) Stream	Sep. 30, 2022 USD ($)
Disaggregation of Revenue [Abstract]
Number of distinct revenue streams | Stream			3
Revenue	$ 11,566	$ 11,898	$ 34,826	$ 36,918
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	466	174	3,571	2,666
Engineering [Member] | System Design and Build [Member]
Disaggregation of Revenue [Abstract]
Revenue	1,192	1,537	4,801	4,991
Engineering [Member] | System Design and Build [Member] | Over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	1,192	1,537	4,801	4,991
Engineering [Member] | Software and Support [Member]
Disaggregation of Revenue [Abstract]
Revenue	1,373	2,010	3,662	3,560
Engineering [Member] | Software and Support [Member] | Point in Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	259	530	627	662
Engineering [Member] | Software and Support [Member] | Over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	1,114	1,480	3,035	2,898
Engineering [Member] | Training and Consulting Services [Member]
Disaggregation of Revenue [Abstract]
Revenue	6,092	4,505	16,180	13,851
Engineering [Member] | Training and Consulting Services [Member] | Point in Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	131	195	428	428
Engineering [Member] | Training and Consulting Services [Member] | Over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	5,961	4,310	15,752	15,752
Workforce Solutions [Member]
Disaggregation of Revenue [Abstract]
Revenue	2,909	3,846	10,183	14,516
Workforce Solutions [Member] | Training and Consulting Services [Member]
Disaggregation of Revenue [Abstract]
Revenue	2,909	3,846	10,183	14,516
Workforce Solutions [Member] | Training and Consulting Services [Member] | Point in Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	16	52	225	52
Workforce Solutions [Member] | Training and Consulting Services [Member] | Over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	$ 2,893	$ 3,794	$ 9,958	$ 14,464