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Broadcast Licenses, Goodwill and Other Intangible Assets (Details 3) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 15,206 | $ 13,288
Accumulated Amortization | 12,488 | 11,729
Net Amount | 2,718 | 1,559
Customer Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 3,546 | 1,744
Accumulated Amortization | 1,529 | 747
Net Amount | 2,017 | 997
Noncompete Agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 3,861 | 3,861
Accumulated Amortization | 3,861 | 3,861
Net Amount | 0 | 0
Favorable Lease Agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 5,965 | 5,763
Accumulated Amortization | 5,468 | 5,439
Net Amount | 497 | 324
Other Intangible Assets [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 1,834 | 1,920
Accumulated Amortization | 1,630 | 1,682
Net Amount | $ 204 | $ 238

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