H&N ACQUISITION (Details) (H and N [Member], Subsequent Event [Member], USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2013
Business Acquisition [Line Items]
Amount of outstanding shares purchased	$ 2.0
Amount payable through promissory note	$ 3.3
Promissory note expiration date	2015
Number of trading days	30 days
Additional increase in annual interest rate after January 2016	10.00%
Period of employment contract	5 years
Minimum [Member]
Business Acquisition [Line Items]
Annual interest rate	1.00%
Shares of common stock	$ 6.00
Maximum [Member]
Business Acquisition [Line Items]
Annual interest rate	5.00%
Shares of common stock	$ 12.00

Refers to Additional increase in annual interest rate after January 2016.

No definition available.

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Refers to Amount payable through promissory note.

No definition available.

Name:	ribt_AmountPayableThroughPromissoryNote
Namespace Prefix:	ribt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of outstanding shares purchased.

No definition available.

Name:	ribt_BusinessAcquisitionOutstandingSharesPurchased
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Data Type:	xbrli:monetaryItemType
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Represents to annual interest to be paid on promissory note.

No definition available.

Name:	ribt_BusinessCombinationAnnualInterestRateOnPromissoryNote
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Data Type:	num:percentItemType
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Period Type:	instant

The number of trading days considered in delivery of shares.

No definition available.

Period of employment contract with former chief executive officer and founder.

No definition available.

Name:	ribt_PeriodOfEmploymentContract
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This line represents promissory note expiration date.

No definition available.

Name:	ribt_PromissoryNoteExpirationDate
Namespace Prefix:	ribt_
Data Type:	xbrli:gYearItemType
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For an acquired entity, price of a single share of a number of saleable stocks of a company.

No definition available.

Name:	us-gaap_BusinessAcquisitionSharePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant