CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue
Revenue	$ 34,695	$ 28,243	$ 102,039	$ 72,450
Costs and expenses
Total costs and expenses	18,408	18,981	63,442	47,353
Selling, general and administrative expenses	9,851	9,296	30,027	27,684
Operating income (loss)	6,436	(34)	8,570	(2,587)
Other income (expense)
Other income	3	1	10	7
Interest expense	(1,717)	(1,722)	(5,101)	(4,993)
Income (loss) before income taxes	4,722	(1,755)	3,479	(7,573)
Benefit (provision) for income taxes (Note 7)	106	(211)	41	(529)
Net income (loss)	4,828	(1,966)	3,520	(8,102)
Less: Net income attributable to non-controlling interest (Note 2)	(715)	(1,078)	(1,480)	(1,430)
Net income (loss) attributable to Telos Corporation	4,113	(3,044)	2,040	(9,532)
Service [Member]
Revenue
Revenue	32,067	19,149	91,739	57,246
Costs and expenses
Total costs and expenses	17,143	12,206	59,119	37,219
Product [Member]
Revenue
Revenue	2,628	9,094	10,300	15,204
Costs and expenses
Total costs and expenses	$ 1,265	$ 6,775	$ 4,323	$ 10,134