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Stockholders' Equity (Deficit) (Details 2) (USD $)
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12 Months Ended |
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2011
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Jul. 08, 2010
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| Warrants liability |
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| Outstanding warrants (in shares) |
30,258us-gaap_ClassOfWarrantOrRightOutstanding
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| Reclassification of warrant to additional paid-in capital |
$ 145,256trvn_AdjustmentsToAdditionalPaidInCapitalReclassificationOfConvertiblePreferredStockWarrantLiability
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| Fair value of the warrants outstanding |
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350,519us-gaap_DerivativeLiabilitiesNoncurrent
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| Common stock, shares authorized |
100,000,000us-gaap_CommonStockSharesAuthorized
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132,000,000us-gaap_CommonStockSharesAuthorized
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| Preferred Stock, shares authorized |
5,000,000us-gaap_PreferredStockSharesAuthorized
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| Fair value of the warrants outstanding |
82,851trvn_PreferredStockWarrantLiabilityNonCurrent
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350,519trvn_PreferredStockWarrantLiabilityNonCurrent
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| Series B convertible preferred stock |
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| Warrants liability |
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| Number of shares called upon exercise of warrants (in shares) |
125,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
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| Outstanding warrants (in shares) |
1,225,000us-gaap_ClassOfWarrantOrRightOutstanding
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
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| Series B 1 convertible preferred stock |
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| Warrants 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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| Warrants |
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| Warrants 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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| Warrants | Series B 1 convertible preferred stock |
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| Warrants 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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| Warrants | Common Stock | Maximum |
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| Warrants 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-1 warrants |
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| Warrants 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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| Outstanding warrants (in shares) |
1,100,000us-gaap_ClassOfWarrantOrRightOutstanding
/ us-gaap_ClassOfWarrantOrRightAxis
= trvn_SeriesB1WarrantsMember
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| Reclassification of warrant to additional paid-in capital |
$ 145,256trvn_AdjustmentsToAdditionalPaidInCapitalReclassificationOfConvertiblePreferredStockWarrantLiability
/ us-gaap_ClassOfWarrantOrRightAxis
= trvn_SeriesB1WarrantsMember
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| Series B-1 warrants | Common Stock |
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| Warrants 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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