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v2.4.1.9

Broadcast Licenses, Goodwill and Other Intangible Assets (Details 3) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 11,489 us-gaap_FiniteLivedIntangibleAssetsGross | $ 12,114 us-gaap_FiniteLivedIntangibleAssetsGross
Accumulated Amortization | 11,083 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization | 11,680 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Net Amount | 406 us-gaap_FiniteLivedIntangibleAssetsNet | 434 us-gaap_FiniteLivedIntangibleAssetsNet
Noncompete Agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 3,861 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember | 4,511 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember
Accumulated Amortization | 3,861 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember | 4,511 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember
Net Amount | 0 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember | 0 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember
Favorable Lease Agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 5,862 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = sga_FavorableLeaseAgreementsMember | 5,862 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = sga_FavorableLeaseAgreementsMember
Accumulated Amortization | 5,613 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = sga_FavorableLeaseAgreementsMember | 5,577 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = sga_FavorableLeaseAgreementsMember
Net Amount | 249 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = sga_FavorableLeaseAgreementsMember | 285 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = sga_FavorableLeaseAgreementsMember
Other Intangible Assets [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 1,766 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | 1,741 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember
Accumulated Amortization | 1,609 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | 1,592 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember
Net Amount | $ 157 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | $ 149 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember

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