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Stockholders' Equity (Details 1) (USD $)	12 Months Ended
	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrants Outstanding Number of Warrants	3,145,650us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
Warrants Exercisable Weighted Average Remaining Life	1 year 1 month 6 days
Warrants Exercisable Number of Warrants	3,140,250rtgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsEquityInstrumentsExercisableNumber
Exercise Price Range One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrants Outstanding Exercise Price	7.2500us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_RangeAxis = rtgn_ExercisePriceRangeOneMember
Warrants Outstanding Number of Warrants	3,047,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber / us-gaap_RangeAxis = rtgn_ExercisePriceRangeOneMember
Warrants Exercisable Weighted Average Remaining Life	1 year
Warrants Exercisable Number of Warrants	3,047,500rtgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsEquityInstrumentsExercisableNumber / us-gaap_RangeAxis = rtgn_ExercisePriceRangeOneMember
Exercise Price Range Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrants Outstanding Exercise Price	9.0625us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_RangeAxis = rtgn_ExercisePriceRangeTwoMember
Warrants Outstanding Number of Warrants	98,150us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber / us-gaap_RangeAxis = rtgn_ExercisePriceRangeTwoMember
Warrants Exercisable Weighted Average Remaining Life	4 years
Warrants Exercisable Number of Warrants	92,750rtgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsEquityInstrumentsExercisableNumber / us-gaap_RangeAxis = rtgn_ExercisePriceRangeTwoMember

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Represented the value of Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Exercisable Number.

+ References

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Weighted average remaining contractual term of exercisable other than options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(4))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

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-Subparagraph (c)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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