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Related Party Transaction (Narrative) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Number of Reportable Segments | 1 us-gaap_NumberOfReportableSegments |  |
Reportable Subsegments [Member] |  |  |
Revenues | $ 0 us-gaap_Revenues / us-gaap_SubsegmentsAxis = us-gaap_ReportableSubsegmentsMember | $ 0 us-gaap_Revenues / us-gaap_SubsegmentsAxis = us-gaap_ReportableSubsegmentsMember | $ 0 us-gaap_Revenues / us-gaap_SubsegmentsAxis = us-gaap_ReportableSubsegmentsMember

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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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- Details
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