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v2.4.1.9

Income Taxes (Details 2) | 12 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Effective Income Tax Rate Reconciliation [Line Items] |  |
Expected federal statutory rate | (34.00%)us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | (34.00%)us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
State tax rate, net of federal benefit | (6.00%)us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes | (6.00%)us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
Change in effective state tax rate | 0.00%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate | (0.30%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
Permanent items - stock-based compensation | 2.50%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost | 0.00%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
Permanent items - non-deductible merger expenses | 0.40%rtgn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMergerExpensesPercent | 0.00%rtgn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMergerExpensesPercent
Permanent items - other | 0.10%us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsOther | 1.30%us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsOther
Adjustment of NOL due to deconsolidation | 6.20%rtgn_ChangeInAvailableNolDueToDeconsolidation | 0.00%rtgn_ChangeInAvailableNolDueToDeconsolidation
Change in valuation allowance | 30.80%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance | 39.00%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
Income tax provision (benefit) | 0.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 0.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations

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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to merger expenses. + References No definition available. + Details
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: 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.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 + Details
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