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

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- Definition 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 No definition available. + Details
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- Definition 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 + Details
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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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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