CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) [Abstract]
Net income (loss)	$ 4,828	$ (1,966)	$ 3,520	$ (8,102)
Other comprehensive (loss) income :
Foreign currency translation adjustments	(2)	6	(9)	7
Total other comprehensive (loss) income, net of tax	(2)	6	(9)	7
Less: Comprehensive income attributable to non-controlling interest	(715)	(1,078)	(1,480)	(1,430)
Comprehensive income (loss) attributable to Telos Corporation	$ 4,111	$ (3,038)	$ 2,031	$ (9,525)