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Commitments and Contingencies (Details Textual) (USD $) | 0 Months Ended | 12 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended | 1 Months Ended |  |  |  |  |  |
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Feb. 11, 2015 | Mar. 31, 2015 sqft | Mar. 31, 2014 | Mar. 03, 2015 | Mar. 10, 2015 | Mar. 13, 2015 | Mar. 26, 2014 | Mar. 12, 2015 | Aug. 12, 2013 | Nov. 28, 2014 | Jun. 24, 2014 | Mar. 31, 2013 | Jun. 30, 2015 | Jul. 31, 2015 | Aug. 13, 2015 | Apr. 02, 2014 | Jan. 31, 2014
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  | 17.00%us-gaap_EquityMethodInvestmentOwnershipPercentage |  |  |  |  |  |  |  |  |  |  |
Cash |  | $ 10,357,000 us-gaap_Cash | $ 15,571,000 us-gaap_Cash |  |  |  |  |  |  |  |  | $ 96,000 us-gaap_Cash |  |  |  |  |
Proceeds From Transfer Atleast For Not Consummated |  | 3,800,000 rtgn_ProceedsFromTransferAtleastForNotConsummated |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Land Subject to Ground Leases |  | 995 us-gaap_LandSubjectToGroundLeases |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Leases, Rent Expense | 1,700 us-gaap_LeaseAndRentalExpense | 20,000 us-gaap_LeaseAndRentalExpense | 20,000 us-gaap_LeaseAndRentalExpense |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Leases, Future Minimum Payments Due |  |  |  |  |  |  |  |  |  |  |  |  | 5,075 us-gaap_OperatingLeasesFutureMinimumPaymentsDue / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |
New Consulting Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Issued for Services |  |  |  | 340,000 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / rtgn_AgreementTypeAxis = rtgn_NewConsultingAgreementsMember | 250,000 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / rtgn_AgreementTypeAxis = rtgn_NewConsultingAgreementsMember |  |  |  |  |  |  |  |  |  |  |  |
Oculus Side Letter Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities Assumed |  |  |  |  |  | 5,000 us-gaap_LiabilitiesAssumed1 / rtgn_AgreementTypeAxis = rtgn_OculusSideLetterAgreementMember |  |  |  |  |  |  |  |  |  |  |
Merger Closing Date Is No Later Than July 31, 2015 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,000,000 us-gaap_Cash / rtgn_DateOfMergerAxis = rtgn_MergerClosingDateIsNoLaterThanJuly312015Member |  |  |
Merger Closing Date Is After July 31, 2015 But No Later Than August 13, 2015 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,850,000 us-gaap_Cash / rtgn_DateOfMergerAxis = rtgn_MergerClosingDateIsAfterJuly312015ButNoLaterThanAugust132015Member |  |
Pulmatrix Inc [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  | 83.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = rtgn_PulmatrixIncMember |  |  |  |  |  |  |  |  |  |  |
Oculus [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Separation Agreement |  | separation agreement became effective upon the completion of the IPO and terminates on the earlier of 8.5 years following the closing of the IPO or when the parties mutually agree to terminate it. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  |  |  |  |  |  | 2,000,000 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = rtgn_OculusMember |  |  |  |  |  |  |  |  |  |
Percentage Of Gross proceeds Payable |  |  |  |  |  | 10.00%rtgn_PercentageOfGrossProceedsPayable / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = rtgn_OculusMember |  |  |  |  |  |  |  |  |  |  |
Proceeds from Sales of Business, Affiliate and Productive Assets |  |  |  |  |  | 10,000,000 us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = rtgn_OculusMember |  |  |  |  |  |  |  |  |  |  |
Fund To Pay Certain Account Payables Outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 534,000 rtgn_FundToPayCertainAccountPayablesOutstanding / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = rtgn_OculusMember | 760,000 rtgn_FundToPayCertainAccountPayablesOutstanding / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = rtgn_OculusMember
Minimum Duration For Shares Transfer |  | 41 months 15 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share Transfer Agreement Terms |  | Transfers conducted using this one-time right must be conducted with the consent of the Companys board of directors or within the prescribed requirements for such transfers set forth in the separation agreement, including, for example, that the purchase price discount may not exceed certain percentages, the amount of shares transferred may not exceed $3,800,000 in net proceeds to Oculus, as well as certain other requirements set forth in the separation agreement. The separation agreement provides Oculus with certain piggy back registration rights of up to 30% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage Of Outstanding Shares For Laps Of Transfer |  | 19.90%rtgn_PercentageOfOutstandingSharesForLapsOfTransfer / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = rtgn_OculusMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reimbursement Of Expenses Related To Transfer |  |  | 1,450,000 rtgn_ReimbursementOfExpensesRelatedToTransfer / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = rtgn_OculusMember |  |  |  |  |  |  |  |  |  |  |  |  |  |
Oculus [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Sales of Business, Affiliate and Productive Assets |  |  |  |  |  | 1,000,000 us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = rtgn_OculusMember |  |  |  |  |  |  |  |  |  |  |
Oculus [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration For Shares Transfer By Parent |  | 1,500,000 rtgn_ConsiderationForSharesTransferByParent / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = rtgn_OculusMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage Of Shares Transfer By Former Parent |  | 5.00%rtgn_PercentageOfSharesTransferByFormerParent / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = rtgn_OculusMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding Stock Options And Restricted Stock Units Termination Description |  |  |  |  |  |  |  | a lump-sum payment in the amount of $547,600, less taxes and other withholdings and (ii) a lump-sum equivalent to the CEO’s premiums under COBRA for one year, in the same amounts for the same medical coverage as in effect as of the effective time of the merger. |  |  |  |  |  |  |  |  |
Cash Bonus |  |  |  |  |  |  |  |  | 158,000 rtgn_CashBonus / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember |  |  |  |  |  |  |  |
Chief Executive Officer [Member] | 2013 Employee, Director And Consultant Equity Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted Stock units Grants Description |  |  |  |  |  |  |  | equal to the lesser of (i) 930,000 and (ii) the quotient of $3,125,000 divided by the fair market value of the common stock of the combined company as of the effective time of the merger, with such restricted stock units vesting as follows: (i) a number of restricted stock units equal to the lesser of (a) 930,000 and (b) such number of restricted stock units with an aggregate value equal to $1,400,000 shall be fully vested at the effective time of the merger and (ii) an amount equal to 25% of the restricted stock units unvested as of the effective time of the merger will vest on a quarterly basis over the following twelve months. |  |  |  |  |  |  |  |  |
Chief Financial Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding Stock Options And Restricted Stock Units Termination Description |  |  |  |  |  |  |  | a lump-sum payment in the amount of $337,500, less taxes and other withholdings and (ii) a lump-sum equivalent to the CFO’s premiums under COBRA for one year, in the same amounts for the same medical coverage as in effect as of the effective time of the merger. |  |  |  |  |  |  |  |  |
Restricted Stock units Grants Description |  |  |  |  |  |  |  | equal to the lesser of (i) 355,000 and (ii) the quotient of $1,037,500 divided by the fair market value of the common stock of the combined company as of the effective time, with such restricted stock units vesting as follows: (i) a number of restricted stock units equal to the lesser of (a) 355,000 and (b) such number of restricted stock units with an aggregate value equal to $250,000 shall be fully vested at the effective time of the merger and (ii) an amount equal to 25% of the restricted stock units unvested as of the effective time of the merger will vest on a quarterly basis over the following twelve months. |  |  |  |  |  |  |  |  |
Two Executives [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Severance Costs |  | 1,144,000 us-gaap_SeveranceCosts1 / us-gaap_TitleOfIndividualAxis = rtgn_TwoExecutivesMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Employee And Director [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  |  |  |  |  | 90,000 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_TitleOfIndividualAxis = rtgn_EmployeeAndDirectorMember |  |  |  |  |  |  |  |  |  |  |
Employee Agreement [Member] | Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Officers' Compensation |  |  |  |  |  |  |  |  |  | 375,000 us-gaap_OfficersCompensation / rtgn_LicenseAgreementAxis = rtgn_EmployeeAgreementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Description |  | (i) a lump severance payment equal to 24 times the average monthly base salary paid to the CEO over the preceding 12 months; (ii) up to one year (the lesser of one year following the date of termination or until the CEO becomes eligible for medical insurance coverage provided by another employer) reimbursement for health care premiums under COBRA; and (iii) automatic vesting of all unvested options and other equity awards |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Employee Agreement [Member] | Chief Financial Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Officers' Compensation |  |  |  |  |  |  |  |  |  |  | 225,000 us-gaap_OfficersCompensation / rtgn_LicenseAgreementAxis = rtgn_EmployeeAgreementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefFinancialOfficerMember |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Description |  | (i) a lump severance payment equal to 18 times the average monthly base salary paid to the CFO over the preceding 12 months; (ii) up to one year (the lesser of one year following the date of termination or until the CFO becomes eligible for medical insurance coverage provided by another employer) reimbursement for health care premiums under COBRA; and (iii) automatic vesting of all unvested options and other equity awards; provided that in the event the CFO resigns for good reason prior to a change of control, only the vesting of the restricted stock units granted by the Company on May 12, 2014 shall be accelerated. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License And Supply Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase Commitment, Description |  | Oculus shall manufacture and supply, at a purchase price equal to 20% over the cost of goods to Oculus |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License And Supply Agreement [Member] | First Phase [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of Services, Licenses and Services |  | 1,500,000 us-gaap_CostOfServicesLicensesAndServices / rtgn_LicenseAgreementAxis = rtgn_LicenseAndSupplyAgreementMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = rtgn_FirstPhaseMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License And Supply Agreement [Member] | Second Phase [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of Services, Licenses and Services |  | 1,500,000 us-gaap_CostOfServicesLicensesAndServices / rtgn_LicenseAgreementAxis = rtgn_LicenseAndSupplyAgreementMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = rtgn_SecondPhaseMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License And Supply Agreement [Member] | Third Phase [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of Services, Licenses and Services |  | 3,000,000 us-gaap_CostOfServicesLicensesAndServices / rtgn_LicenseAgreementAxis = rtgn_LicenseAndSupplyAgreementMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = rtgn_ThirdPhaseMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License And Supply Agreement [Member] | Fourth Phase [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of Services, Licenses and Services |  | 2,000,000 us-gaap_CostOfServicesLicensesAndServices / rtgn_LicenseAgreementAxis = rtgn_LicenseAndSupplyAgreementMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = rtgn_FourthPhaseMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License And Supply Agreement [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalty Guarantees Commitments Percentage |  | 3.00%rtgn_RoyaltyGuaranteesCommitmentsPercentage / rtgn_LicenseAgreementAxis = rtgn_LicenseAndSupplyAgreementMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License And Supply Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalty Guarantees Commitments Percentage |  | 20.00%rtgn_RoyaltyGuaranteesCommitmentsPercentage / rtgn_LicenseAgreementAxis = rtgn_LicenseAndSupplyAgreementMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License And Supply Agreement [Member] | Oculus [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Supply Commitment, Remaining Minimum Amount Committed |  | $ 8,000,000 us-gaap_SignificantSupplyCommitmentRemainingMinimumAmountCommitted / rtgn_LicenseAgreementAxis = rtgn_LicenseAndSupplyAgreementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = rtgn_OculusMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition The amount of bonus price which is settled in cash. + References No definition available. + Details
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- Details
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- Definition The amount reimbursement of expenses related to transfer. + References No definition available. + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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