CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Thousands	Common Stock [Member]	Common Stock [Member] Cumulative Effect Adjustment Due To Change In Accounting Policy [Member]	Additional Paid-In Capital [Member]	Additional Paid-In Capital [Member] Cumulative Effect Adjustment Due To Change In Accounting Policy [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Other Comprehensive Income [Member] Cumulative Effect Adjustment Due To Change In Accounting Policy [Member]	Accumulated Deficit [Member]	Accumulated Deficit [Member] Cumulative Effect Adjustment Due To Change In Accounting Policy [Member]	Non-Controlling Interest [Member]	Non-Controlling Interest [Member] Cumulative Effect Adjustment Due To Change In Accounting Policy [Member]	Total	Cumulative Effect Adjustment Due To Change In Accounting Policy [Member]	Class A Common Stock [Member] Common Stock [Member]	Class A Common Stock [Member] Common Stock [Member] Cumulative Effect Adjustment Due To Change In Accounting Policy [Member]	Class B Common Stock [Member] Common Stock [Member]	Class B Common Stock [Member] Common Stock [Member] Cumulative Effect Adjustment Due To Change In Accounting Policy [Member]
Beginning balance at Dec. 31, 2017	$ 0		$ 4,310		$ 32		$ (141,370)		$ 913		$ (136,037)		$ 65		$ 13
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0		0		0		(1,640)		3,377		1,737		0		0
Purchase of Telos ID membership interest									0
Foreign currency translation (loss) gain	0		0		(15)		0		0		(15)		0		0
Distributions	0		0		0		0		(1,669)		(1,669)		0		0
Ending balance at Dec. 31, 2018	0	$ 0	4,310	$ 0	17	$ 0	(139,129)	$ 3,881	2,621	$ 0	(132,103)	$ 3,881	65	$ 0	13	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0		0		0		(6,401)		4,264		(2,137)		0		0
Purchase of Telos ID membership interest									0
Foreign currency translation (loss) gain	0		0		(11)		0		0		(11)		0		0
Distributions	0		0		0		0		(2,371)		(2,371)		0		0
Ending balance at Dec. 31, 2019	0		4,310		6		(145,530)		4,514		(136,622)		65		13
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0		0		0		1,687		5,154		6,841		0		0
Issuance of common stock	103		291,997		0		0		0		292,022		(65)		(13)
Purchase of Telos ID membership interest	0		(25,511)		0		0		(4,489)		(30,000)		0		0
Foreign currency translation (loss) gain	0		0		38		0		0		38		0		0
Stock-based compensation	0		4		0		0		0		4		0		0
Distributions	0		0		0		0		(5,179)		(5,179)		0		0
Ending balance at Dec. 31, 2020	$ 103		$ 270,800		$ 44		$ (143,843)		$ 0		$ 127,104		$ 0		$ 0