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Summary of Significant Accounting Policies and Estimates (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Allowance for Doubtful Accounts
Additions Charged to Expense	$ 45,000	$ 20,000
Barter Transactions
Barter advertising revenue	$ 713,000	$ 160,000

Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected).

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