Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) Segment	Sep. 30, 2014 USD ($)
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Number of reportable business segments | Segment			2
Segment Reporting Information, Profit (Loss) [Abstract]
Revenues	$ 14,961	$ 7,823	$ 42,589	$ 24,823
Operating income (loss)	(3,388)	(1,947)	(5,128)	(6,017)
Gain on change in fair value of contingent consideration, net	226	42	739	69
Interest income, net	19	44	67	103
(Gain) loss on derivative instruments, net	20	69	(59)	178
Other expense, net	(156)	0	(235)	(7)
Loss before income taxes	(3,505)	(1,834)	$ (5,355)	(5,743)
Performance Improvement Solutions [Member]
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Contract range, minimum			10 months
Contract range, maximum			3 years
Segment Reporting Information, Profit (Loss) [Abstract]
Revenues	9,903	7,823	$ 26,911	24,823
Operating income (loss)	(3,604)	(1,905)	(5,493)	(5,948)
Nuclear Industry Training and Consulting [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Revenues	5,058	0	15,678	0
Operating income (loss)	$ 442	$ 0	$ 1,104	$ 0