CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenue (Note 5)
Services	$ 81,606	$ 112,881	$ 97,659
Products	26,121	21,987	22,975
Total Revenue	107,727	134,868	120,634
Costs and expenses
Cost of sales - Services	49,965	77,578	73,079
Cost of sales - Products	17,196	13,844	16,882
Total costs and expenses	67,161	91,422	89,961
Selling, general and administrative expenses	40,152	41,334	34,290
Operating income (loss)	414	2,112	(3,617)
Other income (expenses)
Non-operating income	11	18	19
Interest expense	(6,690)	(5,465)	(5,639)
Loss before income taxes	(6,265)	(3,335)	(9,237)
Benefit (provision) for income taxes (Note 9)	2,767	(334)	(4,265)
Net loss	(3,498)	(3,669)	(13,502)
Less: Net income attributable to non-controlling interest (Note 2)	(2,335)	(3,506)	(2,438)
Net loss attributable to Telos Corporation	$ (5,833)	$ (7,175)	$ (15,940)