XML 54 R22.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Note 8 - Income Taxes (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2013
Income Tax Disclosure [Abstract] |
Schedule Of Income Tax Expense Benefit And Effective Income Tax Rate [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Income tax expense |  | $ | 4,491 |  |  | $ | 10,035 |  |  | $ | 9,715 |  |  | $ | 19,250 |
Effective income tax rate |  |  | 38.8 | % |  |  | 38.7 | % |  |  | 42.6 | % |  |  | 38.9 | %

X
- Definition Schedule of income tax expense benefit and effective income tax rate. + References No definition available. + Details
Name: | gtn_ScheduleOfIncomeTaxExpenseBenefitAndEffectiveIncomeTaxRateTableTextBlock
Namespace Prefix: | gtn_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration