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5. GOODWILL AND OTHER INTANGIBLE ASSETS (Details - Annual Amortization Schedule) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014
Amortization next twelve months | $ 2,968us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextRollingTwelveMonths
Amortization year 2016 | 2,594us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearTwo
Amortization year 2017 | 2,506us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearThree
Amortization year 2018 | 2,463us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFour
Amortization year 2019 | 2,379us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFive
Amortization year thereafter | 34,713us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingAfterYearFive
Amortiztion total | 47,624us-gaap_AmortizationOfIntangibleAssets
Management Service Contracts |
Amortization next twelve months | 2,315us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextRollingTwelveMonths / us-gaap_UnderlyingAssetClassAxis = rdnt_ManagementServiceContractsMember
Amortization year 2016 | 2,315us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearTwo / us-gaap_UnderlyingAssetClassAxis = rdnt_ManagementServiceContractsMember
Amortization year 2017 | 2,315us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearThree / us-gaap_UnderlyingAssetClassAxis = rdnt_ManagementServiceContractsMember
Amortization year 2018 | 2,315us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFour / us-gaap_UnderlyingAssetClassAxis = rdnt_ManagementServiceContractsMember
Amortization year 2019 | 2,315us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFive / us-gaap_UnderlyingAssetClassAxis = rdnt_ManagementServiceContractsMember
Amortization year thereafter | 27,205us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingAfterYearFive / us-gaap_UnderlyingAssetClassAxis = rdnt_ManagementServiceContractsMember
Amortiztion total | 38,781us-gaap_AmortizationOfIntangibleAssets / us-gaap_UnderlyingAssetClassAxis = rdnt_ManagementServiceContractsMember
Weighted average amortization period remaining in years | 169 months 18 days
Covenant Not To Compete |
Amortization next twelve months | 320us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextRollingTwelveMonths / us-gaap_UnderlyingAssetClassAxis = rdnt_CovenantNotToCompeteMember
Amortization year 2016 | 254us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearTwo / us-gaap_UnderlyingAssetClassAxis = rdnt_CovenantNotToCompeteMember
Amortization year 2017 | 191us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearThree / us-gaap_UnderlyingAssetClassAxis = rdnt_CovenantNotToCompeteMember
Amortization year 2018 | 148us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFour / us-gaap_UnderlyingAssetClassAxis = rdnt_CovenantNotToCompeteMember
Amortization year 2019 | 64us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFive / us-gaap_UnderlyingAssetClassAxis = rdnt_CovenantNotToCompeteMember
Amortization year thereafter | 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingAfterYearFive / us-gaap_UnderlyingAssetClassAxis = rdnt_CovenantNotToCompeteMember
Amortiztion total | 977us-gaap_AmortizationOfIntangibleAssets / us-gaap_UnderlyingAssetClassAxis = rdnt_CovenantNotToCompeteMember
Weighted average amortization period remaining in years | 3 years 8 months 12 days
Customer Relationships |
Amortization next twelve months | 184us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextRollingTwelveMonths / us-gaap_UnderlyingAssetClassAxis = us-gaap_CustomerRelationshipsMember
Amortization year 2016 | 1us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearTwo / us-gaap_UnderlyingAssetClassAxis = us-gaap_CustomerRelationshipsMember
Amortization year 2017 | 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearThree / us-gaap_UnderlyingAssetClassAxis = us-gaap_CustomerRelationshipsMember
Amortization year 2018 | 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFour / us-gaap_UnderlyingAssetClassAxis = us-gaap_CustomerRelationshipsMember
Amortization year 2019 | 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFive / us-gaap_UnderlyingAssetClassAxis = us-gaap_CustomerRelationshipsMember
Amortization year thereafter | 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingAfterYearFive / us-gaap_UnderlyingAssetClassAxis = us-gaap_CustomerRelationshipsMember
Amortiztion total | 185us-gaap_AmortizationOfIntangibleAssets / us-gaap_UnderlyingAssetClassAxis = us-gaap_CustomerRelationshipsMember
Weighted average amortization period remaining in years | 10 months 24 days
Developed technology and in-process R and D |
Amortization next twelve months | 149us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextRollingTwelveMonths / us-gaap_UnderlyingAssetClassAxis = us-gaap_TechnologyBasedIntangibleAssetsMember
Amortization year 2016 | 24us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearTwo / us-gaap_UnderlyingAssetClassAxis = us-gaap_TechnologyBasedIntangibleAssetsMember
Amortization year 2017 | 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearThree / us-gaap_UnderlyingAssetClassAxis = us-gaap_TechnologyBasedIntangibleAssetsMember
Amortization year 2018 | 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFour / us-gaap_UnderlyingAssetClassAxis = us-gaap_TechnologyBasedIntangibleAssetsMember
Amortization year 2019 | 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFive / us-gaap_UnderlyingAssetClassAxis = us-gaap_TechnologyBasedIntangibleAssetsMember
Amortization year thereafter | 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingAfterYearFive / us-gaap_UnderlyingAssetClassAxis = us-gaap_TechnologyBasedIntangibleAssetsMember
Amortiztion total | 173us-gaap_AmortizationOfIntangibleAssets / us-gaap_UnderlyingAssetClassAxis = us-gaap_TechnologyBasedIntangibleAssetsMember
Weighted average amortization period remaining in years | 1 year 3 months 18 days
Trade Names |
Amortization year 2016 | 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearTwo / us-gaap_UnderlyingAssetClassAxis = us-gaap_TradeNamesMember
Amortization year 2017 | 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearThree / us-gaap_UnderlyingAssetClassAxis = us-gaap_TradeNamesMember
Amortization year 2018 | 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFour / us-gaap_UnderlyingAssetClassAxis = us-gaap_TradeNamesMember
Amortization year 2019 | 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFive / us-gaap_UnderlyingAssetClassAxis = us-gaap_TradeNamesMember
Amortization year thereafter | 7,508us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingAfterYearFive / us-gaap_UnderlyingAssetClassAxis = us-gaap_TradeNamesMember
Amortiztion total | $ 7,508us-gaap_AmortizationOfIntangibleAssets / us-gaap_UnderlyingAssetClassAxis = us-gaap_TradeNamesMember

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the fifth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the fourth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the third rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the second rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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