CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) [Abstract]
Net loss	$ (3,498)	$ (3,669)	$ (13,502)
Other comprehensive income (loss):
Foreign currency translation adjustments	7	(12)	(6)
Actuarial loss on pension liability adjustments, net of tax	0	0	(2)
Total other comprehensive income (loss), net of tax	7	(12)	(8)
Less: Comprehensive income attributable to non-controlling interest	(2,335)	(3,506)	(2,438)
Comprehensive loss attributable to Telos Corporation	$ (5,826)	$ (7,187)	$ (15,948)