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           SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
  
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        12 Months Ended | 
      
      
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           Dec. 31, 2014 
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        | SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract] | 
         
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        | Property, Plant and Equipment Estimated Useful Lives | 
        
Depreciation is computed using the straight-line method over estimated useful lives as follows:
  Category | 
  | 
Life | 
 
| Buildings | 
  | 
40 years | 
 
| Office furnishings and equipment | 
  | 
5-10 years | 
 
| Antennae, towers and transmitting equipment | 
  | 
10-20 years | 
 
| Studio and production equipment | 
  | 
7-10 years | 
 
| Computer software and website development costs | 
  | 
3 years | 
 
| Record and tape libraries | 
  | 
3 years | 
 
| Automobiles | 
  | 
5 years | 
 
| Leasehold improvements | 
  | 
Lesser of 15 years or life of lease | 
 
 
 
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        | Schedule of fair value measurements used to value asset | 
        
The table below presents the fair value measurements used to value this asset. 
  
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Fair Value Measurements Using: | 
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(Dollars in thousands) | 
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| Description | 
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As of December 31,   2014
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Quoted prices in  active markets  (Level 1)
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Significant Other   Observable Inputs   (Level 2)
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Significant   Unobservable   Inputs (Level 3)
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Total Gains   (Losses)
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| Long-Lived Asset Held for Sale | 
  | 
$ | 
1,700 | 
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$ | 
1,700 | 
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  | 
$ | 
- | 
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        | Intangibles Asset Estimated Useful Lives | 
        
These intangibles are amortized using the straight-line method over the following estimated useful lives:
| Category | 
  | 
 Life | 
 
| Customer lists and contracts | 
  | 
Lesser of 5 years or life of contract | 
 
| Favorable and assigned leases | 
  | 
Life of the lease | 
 
| Domain and brand names | 
  | 
5 to 7 years | 
 
| Internally developed software | 
  | 
3 to 5 years | 
 
| Customer  relationships | 
  | 
1 to 3 years | 
 
| Other amortizable intangible assets | 
  | 
5 to 10 years | 
 
 
 
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        | Fair Value of Financial Assets Measured at Fair Value | 
        
The following table summarizes the fair value of our financial assets and liabilities that are measured at fair value: 
 | 
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 December 31, 2014 | 
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Total Fair Value and   Carrying Value on  
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Fair Value Measurement Category | 
  | 
 
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Balance Sheet | 
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Level 1 | 
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Level 2 | 
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Level 3 | 
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(Dollars in thousands) | 
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| Assets: | 
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| Cash and cash equivalents | 
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$ | 
33 | 
  | 
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$ | 
33 | 
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$ | 
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$ | 
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| Trade accounts receivable, net | 
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34,781 | 
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34,781 | 
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| Fair value of interest rate swap | 
  | 
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475 | 
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  | 
475 | 
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| Liabilities: | 
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| Accounts payable | 
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2,964 | 
  | 
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2,964 | 
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| Accrued expenses including estimated fair value of contingent earn-out consideration | 
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12,704 | 
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  | 
11,129 | 
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1,575 | 
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| Accrued interest | 
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  | 
48 | 
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  | 
48 | 
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| Long term liabilities including estimated fair value of contingent earn-out consideration | 
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4,123 | 
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2,413 | 
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1,710 | 
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| Long-term debt | 
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277,505 | 
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277,505 | 
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        | Summary of Changes in Gross Amount of Unrecognized Tax Benefits | 
        
A summary of the changes in the gross amount of unrecognized tax benefits is as follows: 
  
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December 31, 2014 | 
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(Dollars in thousands) | 
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| Balance at January 1, 2014 | 
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$ | 
916 | 
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| Additions based on tax positions related to the current year | 
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| Additions based on tax positions related to prior years | 
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| Reductions related to tax positions of prior years | 
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| Decrease due to statute expirations | 
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 (405 | 
)  | 
 
| Related interest and penalties, net of federal tax benefits | 
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(3  | 
)  | 
 
| Balance as of December 31, 2014 | 
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$ | 
508 
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        | Shares Used to Compute Basic and Diluted Net Earning Per Share | 
        
The following table sets forth the shares used to compute basic and diluted net earnings per share for the periods indicated: 
  
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Year Ended December 31, | 
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2012 | 
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2013 | 
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2014 | 
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| Weighted average shares | 
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24,577,605 | 
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24,938,075 | 
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25,336,809 | 
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| Effect of dilutive securities - stock options | 
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409,361 | 
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744,366 | 
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| Weighted average shares adjusted for dilutive securities | 
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24,986,966 | 
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24,938,075 | 
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26,081,175 | 
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