Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

v2.4.1.9
Commitments and Contingencies (Details) (USD $)
0 Months Ended 12 Months Ended
Oct. 30, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Licenses        
Value of temporary equity purchased by licensee     120,562,138us-gaap_TemporaryEquityCarryingAmountAttributableToParent $ 58,957,834us-gaap_TemporaryEquityCarryingAmountAttributableToParent
Reverse stock split ratio 0.1613us-gaap_StockholdersEquityNoteStockSplitConversionRatio1      
Series C convertible preferred stock        
Licenses        
Value of temporary equity purchased by licensee     59,935,986us-gaap_TemporaryEquityCarryingAmountAttributableToParent
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
 
Actavis plc (formerly Forest Laboratories Holdings Limited) | Series C convertible preferred stock        
Licenses        
Value of temporary equity purchased by licensee   30,000,000us-gaap_TemporaryEquityCarryingAmountAttributableToParent
/ us-gaap_CounterpartyNameAxis
= trvn_ActavisFormerlyForestLaboratoriesHoldingsLimitedMember
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
   
Option agreement and a license agreement | Minimum        
Licenses        
Tiered royalties that could be received, as a percentage of net sales of licensed products   10.00%trvn_CollaborativeArrangementTieredRoyaltyRevenueThatCouldBeReceivedAsAPercentageOfNetSalesOfLicensedProducts
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_TypeOfArrangementAxis
= us-gaap_CollaborativeArrangementProductAgreementMember
   
Option agreement and a license agreement | Maximum        
Licenses        
Tiered royalties that could be received, as a percentage of net sales of licensed products     20.00%trvn_CollaborativeArrangementTieredRoyaltyRevenueThatCouldBeReceivedAsAPercentageOfNetSalesOfLicensedProducts
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_TypeOfArrangementAxis
= us-gaap_CollaborativeArrangementProductAgreementMember
 
Option agreement and a license agreement | Actavis plc (formerly Forest Laboratories Holdings Limited)        
Licenses        
Consideration received upon the grant of the option   0trvn_CollaborativeArrangementConsiderationReceivedUponGrantOfOption
/ us-gaap_CounterpartyNameAxis
= trvn_ActavisFormerlyForestLaboratoriesHoldingsLimitedMember
/ us-gaap_TypeOfArrangementAxis
= us-gaap_CollaborativeArrangementProductAgreementMember
   
Aggregate potential consideration   365,000,000trvn_CollaborativeArrangementMaximumPotentialConsideration
/ us-gaap_CounterpartyNameAxis
= trvn_ActavisFormerlyForestLaboratoriesHoldingsLimitedMember
/ us-gaap_TypeOfArrangementAxis
= us-gaap_CollaborativeArrangementProductAgreementMember
   
Option exercise fee   65,000,000trvn_CollaborativeArrangementUpfrontOptionExerciseFee
/ us-gaap_CounterpartyNameAxis
= trvn_ActavisFormerlyForestLaboratoriesHoldingsLimitedMember
/ us-gaap_TypeOfArrangementAxis
= us-gaap_CollaborativeArrangementProductAgreementMember
   
Term of royalty on sales from the first commercial sale of product   10 years    
Option agreement and a license agreement | Actavis plc (formerly Forest Laboratories Holdings Limited) | Series C convertible preferred stock        
Licenses        
Value of temporary equity allocated to the option agreement   0trvn_TemporaryEquityValueAllocatedToTheOptionAgreement
/ us-gaap_CounterpartyNameAxis
= trvn_ActavisFormerlyForestLaboratoriesHoldingsLimitedMember
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
/ us-gaap_TypeOfArrangementAxis
= us-gaap_CollaborativeArrangementProductAgreementMember
   
Reverse stock split ratio   0.1613us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ us-gaap_CounterpartyNameAxis
= trvn_ActavisFormerlyForestLaboratoriesHoldingsLimitedMember
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
/ us-gaap_TypeOfArrangementAxis
= us-gaap_CollaborativeArrangementProductAgreementMember