Investments (Details)					12 Months Ended
	Oct. 01, 2015 USD ($)	Jul. 17, 2015 USD ($)	Jul. 02, 2015 USD ($)	Jan. 16, 2014 USD ($)	Dec. 31, 2016 USD ($) seat	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2015 shares
Schedule of Equity Method Investments [Line Items]
Investments					$ 2,685,000	$ 2,719,000
Payment to acquire investments				$ 4,000,000
Loss in equity interests					$ (328,000)	$ 520,000	$ (232,000)
Touch Media International Holdings
Schedule of Equity Method Investments [Line Items]
Approximate % Ownership					3.00%
Other than temporary impairment					$ 4,000,000		4,000,000
Investments							$ 0
Catchafire, Inc.
Schedule of Equity Method Investments [Line Items]
Approximate % Ownership					5.20%
Jetaport, Inc. (Skipper)
Schedule of Equity Method Investments [Line Items]
Approximate % Ownership			17.60%		17.50%			17.50%
Number of seats held on skipper's board of directors | seat					1
Total number of seats on skipper's board of directors | seat					3
Payment to acquire investments			$ 1,500,000
Options exercised | shares								75,700
Convertible debt issued					$ 200,000
A Vendor Services Company
Schedule of Equity Method Investments [Line Items]
Approximate % Ownership		21.10%			34.10%
Payment to acquire investments		$ 1,000,000			$ 300,000
Upon approval and after additional options exercised | Jetaport, Inc. (Skipper)
Schedule of Equity Method Investments [Line Items]
Approximate % Ownership			15.40%
Upon approval and after additional options exercised | A Vendor Services Company
Schedule of Equity Method Investments [Line Items]
Approximate % Ownership		32.30%
GigMasters.com
Schedule of Equity Method Investments [Line Items]
Equity interest in acquiree, remeasurement gain	$ 800,000