Non-controlling Interests (Details)		1 Months Ended		12 Months Ended
	Dec. 24, 2014 USD ($) Director Subclasses	Apr. 30, 2007 USD ($) Director	Apr. 19, 2007	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Apr. 20, 2007 USD ($)	Apr. 11, 2007 USD ($)
Noncontrolling Interest [Line Items]
Percentage of membership interest sold to investor	10.00%
Net loss				$ (3,498,000)	$ (3,669,000)	$ (13,502,000)
Proceeds from sale of membership interest				0	0	2,000,000
Changes in non-controlling interest [Abstract]
Non-controlling interest, beginning of period				2,229,000	635,000	584,000
Net income				2,335,000	3,506,000	2,438,000
Distributions				(3,651,000)	(1,912,000)	(2,387,000)
Non-controlling interest, end of period				913,000	2,229,000	635,000	$ 584,000
Class A Membership Unit [Member]
Noncontrolling Interest [Line Items]
Net loss				$ 2,300,000	$ 3,500,000	$ 2,400,000
Telos ID [Member]
Noncontrolling Interest [Line Items]
Net book value of assets contributed									$ 17,000
Percentage of membership interest owned before			99.999%
Owned membership interest from private equity investors			0.001%
Percentage of membership interest sold to investor								39.999%
Cash consideration received on sale of membership interest	$ 5,000,000							$ 6,000,000
Recognized gain on sale of membership interests to the Investors		$ 5,800,000
Number of members in board of director | Director	5
Number of subclasses of membership units | Subclasses	2
Proceeds from sale of membership interest							3,000,000
Receivable from sale of membership interest							$ 2,000,000
Telos ID [Member] | Class A Membership Unit [Member]
Noncontrolling Interest [Line Items]
Percentage of ownership interest owned after transaction	50.00%	60.00%
Percentage of profit and loss allocated	50.00%
Number of directors entitled to be appointed | Director	3	3
Telos ID [Member] | Class B Membership Unit [Member]
Noncontrolling Interest [Line Items]
Percentage of ownership interest owned after transaction	50.00%
Percentage of profit and loss allocated	50.00%
Number of directors entitled to be appointed | Director	2