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Houston TV Asset Acquisition (Details Textual) (USD $)
In Millions, unless otherwise specified
1 Months Ended 12 Months Ended
Aug. 31, 2011
Installment
Dec. 31, 2012
Installment
Aug. 01, 2011
Houston TV Asset Acquisition (Additional Textual) [Abstract]      
Houston TV Asset Acquisition aggregate purchase price     $ 16.0
Houston TV Asset Acquisition purchase price paid in cash     8.0
FCC licenses     10.4
Property and equipment     4.5
Other intangible assets     1.1
Secured Promissory Note [Member]
     
Houston TV Asset Acquisition (Textual) [Abstract]      
Houston TV Asset Acquisition, principal amount of secured promissory note issued     $ 8.0
Houston TV Asset Acquisition, secured promissory note, maturity period   36 months  
Houston TV Asset Acquisition, secured promissory note, fixed interest rate 6.00%    
Houston TV Asset Acquisition, Number of installments for secured promissory note 3 3  
Houston TV Asset Acquisition, annual installments description for secured promissory note   Each equal to one-third of the principal amount of the note plus all accrued and unpaid interest