Summary of Significant Accounting Policies and Estimates (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Summary of Significant Accounting Policies and Estimates
Allowance for doubtful accounts	$ 963,000	$ 130,000
Barter Transactions
Barter advertising revenue	727,000	982,000
Barter expense	631,000	881,000
Revenue Recognition
Deferred revenue, current	2,500,000		$ 3,100,000
Deferred revenue, long term portion	8,500,000		$ 6,000,000
Foreign Currency Translation Adjustment
Translation adjustment expense	$ 183,000	$ 0