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EQUITY, SHARE-BASED COMPENSATION AND LIABILITY WARRANTS, STOCK OPTION AND WARRANT ACTIVITY (Details) (USD $)
3 Months Ended 12 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Options [Member]    
Shares Under Options, Outstanding [Roll Forward]    
Outstanding at beginning of period (in shares) 269,642us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Granted (in shares) 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Exercised (in shares) 0us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Forfeited, expired or cancelled (in shares) (15,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Outstanding at end of period (in shares) 254,642us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
269,642us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
Exercisable at end of period (in shares) 144,141us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Options, Weighted Average Exercise Price [Roll Forward]    
Outstanding at beginning of period (in dollars per share) $ 12.12us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Granted (in dollars per share) $ 0us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Exercised (in dollars per share) $ 0us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Forfeited, expired or cancelled (in dollars per share) $ 23.18us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Outstanding at end of period (in dollars per share) $ 11.47us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
$ 12.12us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
Exercisable at end of period (in dollars per share) $ 16.15us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Options, Additional Disclosures [Abstract]    
Outstanding, weighted average remaining contractual life 7 years 8 months 12 days 7 years 10 months 24 days
Exercisable, weighted average remaining contractual life 6 years 4 months 24 days  
Equity and Liability Warrants [Member]    
Shares Under Warrants [Roll Forward]    
Outstanding at beginning of period (in shares) 6,503,959us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
 
Granted (in shares) 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
 
Exercised (in shares) 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
 
Forfeited, expired or cancelled (in shares) 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
 
Outstanding at end of period (in shares) 6,503,959us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
6,503,959us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
Exercisable at end of period (in shares) 5,322,264ribt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableNumber
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
 
Equity and Liability Warrants Outstanding, Weighted Average Exercise Price [Roll Forward]    
Outstanding at beginning of period (in dollars per share) $ 5.77ribt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
 
Granted (in dollars per share) $ 0ribt_ShareBasedCompensationArrangementsByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
 
Exercised (in dollars per share) $ 0ribt_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisesInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
 
Forfeited, expired or cancelled (in dollars per share) $ 0ribt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
 
Outstanding at end of period (in dollars per share) $ 5.77ribt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
$ 5.77ribt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
Exercisable at end of period (in dollars per share) $ 5.88ribt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= ribt_SharesUnderWarrantsMember
 
Equity and Liability Warrants, Additional Disclosures [Abstract]    
Outstanding, weighted average remaining contractual life 4 years 1 month 6 days 4 years 3 months 18 days
Exercisable, weighted average remaining contractual life 3 years 9 months 18 days