XML 46 R40.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Broadcast Licenses, Goodwill and Other Intangible Assets (Details 2) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
Indefinite-lived Intangible Assets [Line Items] |  |
Balance | $ 0 us-gaap_Goodwill | $ 0 us-gaap_Goodwill
Acquisitions | 238 us-gaap_IndefinitelivedIntangibleAssetsAcquired | 132 us-gaap_IndefinitelivedIntangibleAssetsAcquired
Balance | 326 us-gaap_Goodwill | 0 us-gaap_Goodwill
Radio [Member] |  |
Indefinite-lived Intangible Assets [Line Items] |  |
Balance | 0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sga_RadioMember | 0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sga_RadioMember
Acquisitions | 326 us-gaap_IndefinitelivedIntangibleAssetsAcquired / us-gaap_StatementBusinessSegmentsAxis = sga_RadioMember | 0 us-gaap_IndefinitelivedIntangibleAssetsAcquired / us-gaap_StatementBusinessSegmentsAxis = sga_RadioMember
Balance | 326 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sga_RadioMember | 0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sga_RadioMember
Television [Member] |  |
Indefinite-lived Intangible Assets [Line Items] |  |
Balance | 0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sga_TelevisionMember | 0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sga_TelevisionMember
Acquisitions | 0 us-gaap_IndefinitelivedIntangibleAssetsAcquired / us-gaap_StatementBusinessSegmentsAxis = sga_TelevisionMember | 0 us-gaap_IndefinitelivedIntangibleAssetsAcquired / us-gaap_StatementBusinessSegmentsAxis = sga_TelevisionMember
Balance | $ 0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sga_TelevisionMember | $ 0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sga_TelevisionMember

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, resulting from a business combination. + References No definition available. + Details
Name: | us-gaap_IndefinitelivedIntangibleAssetsAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=sga_RadioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=sga_TelevisionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |