CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue
Revenue	$ 48,610	$ 36,048	$ 87,589	$ 67,214
Costs and expenses
Total costs and expenses	31,037	26,033	57,774	48,223
Selling, general and administrative expenses	12,507	10,437	24,346	20,795
Operating income (loss)	5,066	(422)	5,469	(1,804)
Other income (expense)
Other income	4	188	12	193
Interest expense	(1,996)	(1,740)	(4,013)	(3,500)
Income (loss) before income taxes	3,074	(1,974)	1,468	(5,111)
(Provision for) benefit from income taxes (Note 7)	(2)	(20)	144	177
Net income (loss)	3,072	(1,994)	1,612	(4,934)
Less: Net (income) loss attributable to non-controlling interest (Note 2)	(2,806)	253	(3,590)	(220)
Net income (loss) attributable to Telos Corporation	266	(1,741)	(1,978)	(5,154)
Service [Member]
Revenue
Revenue	45,486	34,377	80,044	62,414
Costs and expenses
Total costs and expenses	29,378	25,203	54,243	45,394
Product [Member]
Revenue
Revenue	3,124	1,671	7,545	4,800
Costs and expenses
Total costs and expenses	$ 1,659	$ 830	$ 3,531	$ 2,829