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Summary of Significant Accounting Policies (Details 4) (USD $)
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Dec. 31, 2014
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Dec. 31, 2013
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Jul. 08, 2010
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Sep. 19, 2014
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Dec. 31, 2011
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| Fair value, warrant liability |
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| Transfers between levels within the fair value hierarchy |
$ 0trvn_FairValueMeasurementAssetLiabilitiesTransfersBetweenLevels
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$ 0trvn_FairValueMeasurementAssetLiabilitiesTransfersBetweenLevels
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| Fair value of the warrants outstanding |
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350,519us-gaap_DerivativeLiabilitiesNoncurrent
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| Warrants |
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| Fair value, warrant liability |
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| Fair value of the warrants outstanding |
$ 82,851us-gaap_DerivativeLiabilitiesNoncurrent
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
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| Series B-1 warrants |
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| Fair value, warrant liability |
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| Number of shares called upon exercise of warrants (in shares) |
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1,700,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= trvn_SeriesB1WarrantsMember
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| Maximum | Lenders and Placement Agent | Warrants |
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| Fair value, warrant liability |
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| Number of shares called upon exercise of warrants (in shares) |
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126,685us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
/ us-gaap_CounterpartyNameAxis
= trvn_LendersAndPlacementAgentMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
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| Common Stock | Series B-1 warrants |
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| Fair value, warrant liability |
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| Number of shares called upon exercise of warrants (in shares) |
20,273us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= trvn_SeriesB1WarrantsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
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| Common Stock | Lenders and Placement Agent | Warrants |
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| Fair value, warrant liability |
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| Number of shares called upon exercise of warrants (in shares) |
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7,678us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
/ us-gaap_CounterpartyNameAxis
= trvn_LendersAndPlacementAgentMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
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| Common Stock | Maximum | Warrants |
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| Fair value, warrant liability |
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| Number of shares called upon exercise of warrants (in shares) |
20,161us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
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| Series B preferred stock | Warrants |
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| Fair value, warrant liability |
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| Number of shares called upon exercise of warrants (in shares) |
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125,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesBPreferredStockMember
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| Series B 1 convertible preferred stock |
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| Fair value, warrant liability |
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| Number of shares called upon exercise of warrants (in shares) |
1,650,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
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| Series B 1 convertible preferred stock | Warrants |
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| Fair value, warrant liability |
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| Number of shares called upon exercise of warrants (in shares) |
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1,650,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
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