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Summary of Significant Accounting Policies (Details Textual) (USD $) | 0 Months Ended | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 02, 2012 | Nov. 21, 2013 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Four-for-three stock split |  |  | The stock split increased the Companys issued and outstanding shares of common stock from 3,659,753 shares of Class A Common Stock and 597,504 shares of Class B Common Stock to 4,879,186 and 796,672 shares, respectively. |  |
Number of stock options outstanding having antidilutive effect |  |  | 13,000 | 93,000 | 304,000
Concentration Risk, Market Risk |  |  | 44.00% | 44.00% | 43.00%
Depreciation expense |  |  | $ 6,716,000 | $ 6,805,000 | $ 7,053,000
Interest expense related to the amortization of debt issuance costs |  |  | 204,000 | 231,000 | 642,000
Write-off of debt issuance costs |  |  | 55,000 | 0 | 1,326,000
Net book value of deferred costs |  |  | 823,000 | 793,000 |
Number of shares authorized to be repurchased |  |  | 60,000,000 |  |
Treasury Stock, Shares, Acquired |  |  | 2,179 | 2,924 | 5,380
Treasury Stock Acquired, Average Cost Per Share |  |  | $ 43.98 | $ 27.30 | $ 21.71
Advertising and promotion costs |  |  | 3,225,000 | 3,182,000 | 3,675,000
Special cash dividend declared on Classes A and B Common Stock | $ 1.24 | $ 1.80 | $ 1.80 | $ 1.24 | $ 0
Dividend paid | 7,000,000 | 10,300,000 |  |  |
Number of broadcast licenses |  |  | 98 |  |
Number of market serving |  |  | 25 |  |
Revolving Credit Facility [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Write-off of debt issuance costs |  |  | 55,000 |  |
Common Class [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Stock repurchase program, remaining authorization amount |  |  | 29,900,000 |  |
Minimum [Member] | Common Class [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Share repurchase program, authorized amount |  |  | 60,000,000 |  |
Maximum [Member] | Common Class [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Share repurchase program, authorized amount |  |  | $ 75,800,000 |  |
Favorable Lease Agreements [Member] | Minimum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Amortized over the lives of the leases term range |  |  | 4 years |  |
Favorable Lease Agreements [Member] | Maximum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Amortized over the lives of the leases term range |  |  | 26 years |  |
Other Intangible Assets [Member] | Minimum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Amortized over the lives of the leases term range |  |  | 1 year |  |
Other Intangible Assets [Member] | Maximum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Amortized over the lives of the leases term range |  |  | 11 years |  |

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- Definition Description of the stock split arrangement. Also provide the retroactive effect given by a stock split that occurs after the balance date but before the release of financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Stock Split -URI http://asc.fasb.org/extlink&oid=6525746 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section C + Details
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