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2. SUMMARY OF ACCOUNTING POLICIES (Details - Key Financial Data on Joint Ventures) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Key financial data for joint ventures |  |  |
Current assets | $ 23,636us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets | $ 16,203us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets |
Noncurrent assets | 49,347us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAssets | 49,324us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAssets |
Current liabilities | (9,534)us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities | (6,158)us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities |
Noncurrent liabilities | (6,386)us-gaap_EquityMethodInvestmentSummarizedFinancialInformationLiabilities | (6,793)us-gaap_EquityMethodInvestmentSummarizedFinancialInformationLiabilities |
Total net assets | 57,063us-gaap_EquityMethodInvestmentAggregateCost | 52,576us-gaap_EquityMethodInvestmentAggregateCost |
Book value of Radnet joint venture interests | 26,791us-gaap_EquityMethodInvestments | 23,705us-gaap_EquityMethodInvestments |
Cost in excess of book value of acquired joint venture interests | 4,970us-gaap_EquityMethodInvestmentUnderlyingEquityInNetAssets | 4,922us-gaap_EquityMethodInvestmentUnderlyingEquityInNetAssets |
Elimination of intercompany profit remaining on Radnet's consolidated balance sheet | 362us-gaap_EquityMethodInvestmentUnrealizedIntercompanyProfitLossNotEliminatedAmount | 322us-gaap_EquityMethodInvestmentUnrealizedIntercompanyProfitLossNotEliminatedAmount |
Total value of Radnet joint venture interests | 32,123us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures | 28,949us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures |
Total book value of other joint venture partner interests | 30,272rdnt_TotalBookValueOfOtherJointVenturePartnerInterests | 28,871rdnt_TotalBookValueOfOtherJointVenturePartnerInterests |
Net revenue | 101,189rdnt_NetRevenueFromJointVentures | 93,134rdnt_NetRevenueFromJointVentures | 85,036rdnt_NetRevenueFromJointVentures
Net income | $ 14,854us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions | $ 13,633us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions | $ 14,031us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions

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- Definition This item represents the amount of unrealized intercompany profits and losses on transactions between the Entity and unconsolidated subsidiaries (including certain corporate joint ventures, and noncontrolled corporations), accounted for under the equity method of accounting, which have not been eliminated in preparing the Entity's financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph b -Article 3A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=35687916&loc=d3e32367-111569 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=27015204&loc=d3e355119-122828 + Details
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- Definition This element represents the undistributed income (or loss) of equity method investments, net of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations; such investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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