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SUBSEQUENT EVENTS: (Details Textual) (USD $)
Dec. 31, 2014
Tv One Llc [Member]  
Subsequent Event [Line Items]  
Noncontrolling Interest, Ownership Percentage by Parent 99.60%us-gaap_MinorityInterestOwnershipPercentageByParent
/ roia_TvOneLlcAxis
= roia_TvOneLlcMember
Busniesss Combination, Purchase Price $ 550,000,000roia_BusniesssCombinationPurchasePrice
/ roia_TvOneLlcAxis
= roia_TvOneLlcMember
Comcast Programming Ventures V, LLC [Member]  
Subsequent Event [Line Items]  
Busniesss Combination, Purchase Price $ 220,000,000roia_BusniesssCombinationPurchasePrice
/ roia_TvOneLlcAxis
= roia_ComcastProgrammingVenturesVLlcMember
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 47.50%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
/ roia_TvOneLlcAxis
= roia_ComcastProgrammingVenturesVLlcMember
Subsequent Event [Member] | Second Supplemental Indenture [Member] | Senior Subordinated Notes [Member]  
Subsequent Event [Line Items]  
Debt Instrument, Interest Rate, Stated Percentage 9.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= roia_SecondSupplementalIndentureMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorSubordinatedNotesMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember