CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS [Abstract]
Net loss	$ (14,778)	$ (1,460)
Other comprehensive loss, net of tax:
Foreign currency translation adjustments	(32)	(1)
Less: Comprehensive income attributable to non-controlling interest	0	(784)
Comprehensive loss attributable to Telos Corporation	$ (14,810)	$ (2,245)