ACQUISITIONS, DIVESTITURES AND PRO FORMA SUMMARY (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Acquisition [Line Items]
Payments to Acquire Businesses, Gross	$ 25,325,000	$ 9,000,000	$ 0
The expense recognized in the consolidated statement of income as merger and acquisition costs [Abstract]
Merger and acquisition costs	1,542,000
Legal and advisory expenses [Member]
The expense recognized in the consolidated statement of income as merger and acquisition costs [Abstract]
Merger and acquisition costs	767,000
Lease abandonment expense [Member]
The expense recognized in the consolidated statement of income as merger and acquisition costs [Abstract]
Merger and acquisition costs	775,000
Equipment [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period minimum	3
Tangible assets amortization period maximum	20
KUFXFM [Member]
Acquisition [Line Items]
Payments to Acquire Businesses, Gross		9,000,000
Acquisition price paid from borrowing		7,600,000
Acquisition price paid as deposit		1,400,000
KUFXFM [Member] | Unfavorable lease liability [Member]
Purchase price allocation [Abstract]
Intangible assets amortization period		7.5
KUFXFM [Member] | Radio Broadcasting Licences [Member]
Purchase price allocation [Abstract]
Intangible assets non amortizable		8,100,000
KUFXFM [Member] | Goodwill [Member]
Purchase price allocation [Abstract]
Intangible assets non amortizable		700,000
KBLXFM [Member]
Acquisition [Line Items]
Payments to Acquire Businesses, Gross	25,000,000
Acquisition price paid from borrowing	18,000,000
Acquisition price paid using cash available from operating cash flow	7,000,000
KBLXFM [Member] | Radio Broadcasting Licences [Member]
Purchase price allocation [Abstract]
Intangible assets non amortizable	24,800,000
KBLXFM [Member] | Goodwill [Member]
Purchase price allocation [Abstract]
Intangible assets non amortizable	$ 200,000