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Quarterly Results of Operations (Details Textual) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Effect of Fourth Quarter Events [Line Items] |  |  |  |  |  |  |  |  |  |  |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) | $ 1,936,000 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | $ 0 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | $ 0 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | $ 0 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | $ 2,033,000 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | $ 0 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | $ 0 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | $ 0 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | $ 1,936,000 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | $ 2,033,000 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | $ 0 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill
Gain (Loss) on Disposition of Intangible Assets | $ 1,210,000 us-gaap_GainLossOnDispositionOfIntangibleAssets |  |  |  |  |  |  |  |  |  |

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- Definition Amount of gain (loss) on sale or disposal of intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7,9) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
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