CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue
Revenue	$ 36,048	$ 34,943	$ 67,214	$ 67,344
Costs and expenses
Total costs and expenses	26,033	22,865	48,223	45,034
Selling, general and administrative expenses	10,437	9,922	20,795	20,176
Operating (loss) income	(422)	2,156	(1,804)	2,134
Other income (expense)
Other income	188	3	193	7
Interest expense	(1,740)	(1,709)	(3,500)	(3,384)
(Loss) income before income taxes	(1,974)	450	(5,111)	(1,243)
(Provision) benefit for income taxes (Note 7)	(20)	(6)	177	(65)
Net (loss) income	(1,994)	444	(4,934)	(1,308)
Less: Net loss (income) attributable to non-controlling interest (Note 2)	253	(531)	(220)	(765)
Net loss attributable to Telos Corporation	(1,741)	(87)	(5,154)	(2,073)
Service [Member]
Revenue
Revenue	34,377	30,885	62,414	59,672
Costs and expenses
Total costs and expenses	25,203	21,453	45,394	41,976
Product [Member]
Revenue
Revenue	1,671	4,058	4,800	7,672
Costs and expenses
Total costs and expenses	$ 830	$ 1,412	$ 2,829	$ 3,058