Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details)

v2.4.1.9
Income Taxes (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Income Taxes    
Net loss before income taxes $ 49,700,875us-gaap_NetIncomeLoss $ 23,251,435us-gaap_NetIncomeLoss
Deferred tax assets:    
Net operating loss carryforwards 9,245,934us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 5,159,176us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Research and development credits 5,101,755us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch 2,801,924us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch
Research and development expenses capitalized for tax purposes 43,038,057trvn_DeferredTaxAssetsResearchAndDevelopmentExpensesCapitalizedForTaxPurposes 26,936,217trvn_DeferredTaxAssetsResearchAndDevelopmentExpensesCapitalizedForTaxPurposes
Deferred rent 129,998us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent 140,873us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent
Depreciation 476,799us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment 652,104us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment
Other temporary differences 458,413us-gaap_DeferredTaxAssetsOther 628,296us-gaap_DeferredTaxAssetsOther
Total deferred tax assets 58,450,956us-gaap_DeferredTaxAssetsGross 36,318,590us-gaap_DeferredTaxAssetsGross
Deferred tax liabilities:    
Prepaid expenses (90,385)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses (80,311)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses
Total deferred tax liabilities (90,385)us-gaap_DeferredIncomeTaxLiabilities (80,311)us-gaap_DeferredIncomeTaxLiabilities
Net deferred tax assets 58,360,571trvn_DeferredTaxAssetsLiabilitiesNetBeforeValuationAllowance 36,238,279trvn_DeferredTaxAssetsLiabilitiesNetBeforeValuationAllowance
Less valuation allowance (58,360,571)us-gaap_DeferredTaxAssetsValuationAllowance (36,238,279)us-gaap_DeferredTaxAssetsValuationAllowance
Increase in valuation allowance $ 22,100,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount $ 10,400,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount