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4. FACILITY ACQUISITIONS (Details Narrative) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Capital lease payable | $ 11,780us-gaap_CapitalLeaseObligations | $ 5,854us-gaap_CapitalLeaseObligations
Hematology Oncology Consultants |  |
Acquisition, cash paid | 553us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_HematologyOncologyConsultantsMember |
Fair value of acquired fixed assets | 15us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = rdnt_HematologyOncologyConsultantsMember |
Fair value of acquired inventory | 164us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory / us-gaap_BusinessAcquisitionAxis = rdnt_HematologyOncologyConsultantsMember |
Fair value of acquired goodwill | 235us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = rdnt_HematologyOncologyConsultantsMember |
Fair value of acquired intangible assets | 100us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = rdnt_HematologyOncologyConsultantsMember |
Fair value of acquired other assets | 39us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = rdnt_HematologyOncologyConsultantsMember |
Imaging Centers of Pasadena |  |
Acquisition, cash paid | 1,800us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_ImagingCentersPasadenaMember |
Fair value of acquired fixed assets | 1,700us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = rdnt_ImagingCentersPasadenaMember |
Fair value of acquired intangible assets | 105us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = rdnt_ImagingCentersPasadenaMember |
Healthcare Partners |  |
Acquisition, cash paid | 300us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_HealthcarePartnersMember |
Fair value of acquired fixed assets | 2,100us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = rdnt_HealthcarePartnersMember |
Promissory note payable for acquisition | 1,800us-gaap_NotesPayable / us-gaap_BusinessAcquisitionAxis = rdnt_HealthcarePartnersMember |
Moreno Valley Imaging |  |
Acquisition, cash paid | 700us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_MorenoValleyImagingMember |
Fair value of acquired fixed assets | 285us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = rdnt_MorenoValleyImagingMember |
Fair value of acquired goodwill | 362us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = rdnt_MorenoValleyImagingMember |
Fair value of acquired intangible assets | 50us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = rdnt_MorenoValleyImagingMember |
Fair value of acquired other assets | 3us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = rdnt_MorenoValleyImagingMember |
Liberty Pacific Imaging Long Beach |  |
Acquisition, cash paid | 1,900us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_LibertyPacificImagingLongBeachMember |
Fair value of acquired fixed assets | 577us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = rdnt_LibertyPacificImagingLongBeachMember |
Fair value of acquired goodwill | 1,300us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = rdnt_LibertyPacificImagingLongBeachMember |
Fair value of acquired intangible assets | 100us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = rdnt_LibertyPacificImagingLongBeachMember |
Capital lease payable | 65us-gaap_CapitalLeaseObligations / us-gaap_BusinessAcquisitionAxis = rdnt_LibertyPacificImagingLongBeachMember |
Medical Imaging of Manhattan |  |
Acquisition, cash paid | 2,400us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_MedicalImagingOfManhattanMember |
Fair value of acquired fixed assets | 672us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = rdnt_MedicalImagingOfManhattanMember |
Fair value of acquired goodwill | 1,400us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = rdnt_MedicalImagingOfManhattanMember |
Fair value of acquired intangible assets | 150us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = rdnt_MedicalImagingOfManhattanMember |
Fair value of acquired other assets | 139us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = rdnt_MedicalImagingOfManhattanMember |
Sidney Friedman |  |
Acquisition, cash paid | 1,400us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_SidneyFriedmanMember |
Fair value of acquired accounts receivable | 470us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables / us-gaap_BusinessAcquisitionAxis = rdnt_SidneyFriedmanMember |
Fair value of acquired inventory | 600us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory / us-gaap_BusinessAcquisitionAxis = rdnt_SidneyFriedmanMember |
Fair value of acquired goodwill | 231us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = rdnt_SidneyFriedmanMember |
Fair value of acquired intangible assets | 100us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = rdnt_SidneyFriedmanMember |
Leslie A. Saint-Louis |  |
Acquisition, cash paid | 360us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_LeslieSaintLouisMember |
Fair value of acquired goodwill | 310us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = rdnt_LeslieSaintLouisMember |
Fair value of acquired intangible assets | 50us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = rdnt_LeslieSaintLouisMember |
South Valley Radiology Imaging LLC |  |
Acquisition, cash paid |  | 1,300us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_SouthValleyRadiologyMember
Fair value of acquired fixed assets |  | 1,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = rdnt_SouthValleyRadiologyMember
Fair value of acquired goodwill |  | 305us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = rdnt_SouthValleyRadiologyMember
Manhattan Diagnostic Radiology |  |
Acquisition, cash paid |  | 2,300us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_ManhattanMember
Fair value of acquired fixed assets |  | 2,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = rdnt_ManhattanMember
Fair value of acquired intangible assets |  | 150us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = rdnt_ManhattanMember
Fair value of acquired other assets |  | 161us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = rdnt_ManhattanMember
Orange County Radiation Oncology, LLC |  |
Acquisition, cash paid |  | 1,000us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_OrangeCountyRadiationMember
Equity interest acquired |  | 40.00%us-gaap_NoncashOrPartNoncashAcquisitionInterestAcquired1 / us-gaap_BusinessAcquisitionAxis = rdnt_OrangeCountyRadiationMember
Northfield, NJ |  |
Net book value of investment |  | 1,800us-gaap_InvestmentOwnedAtFairValue / us-gaap_BusinessAcquisitionAxis = rdnt_NorthfieldNewJerseyMember
Divestiture, cash received |  | 3,900us-gaap_ProceedsFromDivestitureOfBusinesses / us-gaap_BusinessAcquisitionAxis = rdnt_NorthfieldNewJerseyMember
Gain on sale of investment |  | 2,100us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / us-gaap_BusinessAcquisitionAxis = rdnt_NorthfieldNewJerseyMember
Brooklyn, NY |  |
Acquisition, cash paid |  | 2,400us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_BrooklynMember
Manhattan additional interest |  |
Acquisition, cash paid |  | 430us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_Manhattan2Member
Equity interest acquired |  | 52.40%us-gaap_NoncashOrPartNoncashAcquisitionInterestAcquired1 / us-gaap_BusinessAcquisitionAxis = rdnt_Manhattan2Member
Mission Viejo, CA |  |
Acquisition, cash paid |  | 350us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rdnt_MissionViejoMember
Fair value of acquired fixed assets |  | 30us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = rdnt_MissionViejoMember
Fair value of acquired goodwill |  | 185us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = rdnt_MissionViejoMember
Fair value of acquired working capital |  | $ 135us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = rdnt_MissionViejoMember

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