Annual report pursuant to Section 13 and 15(d)

Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit)

v2.4.1.9
Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) (USD $)
Series A convertible preferred stock
Common Stock
Series A convertible preferred stock
Additional Paid-in Capital
Series A convertible preferred stock
Series B convertible preferred stock
Common Stock
Series B convertible preferred stock
Additional Paid-in Capital
Series B convertible preferred stock
Series B 1 convertible preferred stock
Common Stock
Series B 1 convertible preferred stock
Additional Paid-in Capital
Series B 1 convertible preferred stock
Series C convertible preferred stock
Common Stock
Series C convertible preferred stock
Additional Paid-in Capital
Series C convertible preferred stock
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Accumulated Other Comprehensive Loss
Total
Balance at Dec. 31, 2012                         $ 682us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
$ 19,718us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
$ (59,017,415)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
  $ (58,997,015)us-gaap_StockholdersEquity
Balance at Dec. 31, 2012     25,004,123us-gaap_TemporaryEquityCarryingAmountAttributableToParent
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesAPreferredStockMember
    30,770,194us-gaap_TemporaryEquityCarryingAmountAttributableToParent
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
    3,183,517us-gaap_TemporaryEquityCarryingAmountAttributableToParent
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
              58,957,834us-gaap_TemporaryEquityCarryingAmountAttributableToParent
Balance (in shares) at Dec. 31, 2012                         682,494us-gaap_CommonStockSharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
       
Balance (in shares) at Dec. 31, 2012     25,074,999us-gaap_TemporaryEquitySharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesAPreferredStockMember
    30,800,000us-gaap_TemporaryEquitySharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
    4,200,000us-gaap_TemporaryEquitySharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
               
Increase (Decrease) in Temporary Equity                                  
Issuance of convertible preferred stock, net of issuance costs                       59,918,917us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
        59,918,917us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues
Issuance of convertible preferred stock, net of issuance costs (in shares)                       36,764,704trvn_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
         
Exercise of Series B-1 preferred stock warrants                 1,351,677trvn_TemporaryEquityExerciseOfPreferredStockWarrantsValue
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
              1,351,677trvn_TemporaryEquityExerciseOfPreferredStockWarrantsValue
Exercise of Series B-1 preferred stock warrants (in shares)                 550,000trvn_TemporaryEquityExerciseOfPreferredStockWarrantsShares
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
               
Accretion of Series A, Series B/B-1 and Series C convertible preferred stock to its redemption value     20,250us-gaap_TemporaryEquityAccretionToRedemptionValue
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesAPreferredStockMember
    8,506us-gaap_TemporaryEquityAccretionToRedemptionValue
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
    287,885us-gaap_TemporaryEquityAccretionToRedemptionValue
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
    17,069us-gaap_TemporaryEquityAccretionToRedemptionValue
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
        333,710us-gaap_TemporaryEquityAccretionToRedemptionValue
Increase (Decrease) in Stockholders' Equity                                  
Stock-based compensation expense                           927,996us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
    927,996us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition
Exercise of stock options                         276us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
83,279us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
    83,555us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
Exercise of stock options (in shares)                         275,262us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
       
Accretion of Series A, Series B/B-1 and Series C convertible preferred stock to its redemption value                           (333,710)us-gaap_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
    (333,710)us-gaap_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock
Net loss                             (23,251,435)us-gaap_NetIncomeLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
  (23,251,435)us-gaap_NetIncomeLoss
Conversion of convertible preferred stock to common stock upon initial public offering (in shares)                                 15,708,013us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
Balance at Dec. 31, 2013                         958us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
697,283us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(82,268,850)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
  (81,570,609)us-gaap_StockholdersEquity
Balance at Dec. 31, 2013     25,024,373us-gaap_TemporaryEquityCarryingAmountAttributableToParent
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesAPreferredStockMember
    30,778,700us-gaap_TemporaryEquityCarryingAmountAttributableToParent
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
    4,823,079us-gaap_TemporaryEquityCarryingAmountAttributableToParent
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
    59,935,986us-gaap_TemporaryEquityCarryingAmountAttributableToParent
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
        120,562,138us-gaap_TemporaryEquityCarryingAmountAttributableToParent
Balance (in shares) at Dec. 31, 2013                         957,756us-gaap_CommonStockSharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
      957,756us-gaap_CommonStockSharesOutstanding
Balance (in shares) at Dec. 31, 2013     25,074,999us-gaap_TemporaryEquitySharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesAPreferredStockMember
    30,800,000us-gaap_TemporaryEquitySharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
    4,750,000us-gaap_TemporaryEquitySharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
    36,764,704us-gaap_TemporaryEquitySharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
        97,389,703us-gaap_TemporaryEquitySharesOutstanding
Increase (Decrease) in Temporary Equity                                  
Accretion of Series A, Series B/B-1 and Series C convertible preferred stock to its redemption value     1,688us-gaap_TemporaryEquityAccretionToRedemptionValue
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesAPreferredStockMember
    709us-gaap_TemporaryEquityAccretionToRedemptionValue
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
    23,990us-gaap_TemporaryEquityAccretionToRedemptionValue
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
    2,134us-gaap_TemporaryEquityAccretionToRedemptionValue
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
        (28,521)us-gaap_TemporaryEquityAccretionToRedemptionValue
Conversion of Series A convertible preferred stock to common stock upon initial public offering     (25,026,061)trvn_TemporaryEquityValueRedeemableConvertibleSeriesAPreferredStockConvertedIntoCommonStock
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesAPreferredStockMember
                          (25,026,061)trvn_TemporaryEquityValueRedeemableConvertibleSeriesAPreferredStockConvertedIntoCommonStock
Conversion of Series A convertible preferred stock to common stock upon initial public offering (in shares)     (25,074,999)trvn_TemporaryEquitySharesRedeemableConvertibleSeriesAPreferredStockConvertedIntoCommonStock
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesAPreferredStockMember
                           
Conversion of Series B convertible preferred stock to common stock upon initial public offering       4,968trvn_TemporaryEquityValueRedeemableConvertibleSeriesBPreferredStockConvertedIntoCommonStock
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
30,774,441trvn_TemporaryEquityValueRedeemableConvertibleSeriesBPreferredStockConvertedIntoCommonStock
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(30,779,409)trvn_TemporaryEquityValueRedeemableConvertibleSeriesBPreferredStockConvertedIntoCommonStock
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
                    30,779,409trvn_TemporaryEquityValueRedeemableConvertibleSeriesBPreferredStockConvertedIntoCommonStock
Conversion of Series B convertible preferred stock to common stock upon initial public offering (in shares)       4,967,741trvn_TemporaryEquitySharesRedeemableConvertibleSeriesBPreferredStockConvertedIntoCommonStock
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
  (30,800,000)trvn_TemporaryEquitySharesRedeemableConvertibleSeriesBPreferredStockConvertedIntoCommonStock
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
                     
Conversion of Series B-1 convertible preferred stock to common stock upon initial public offering                 (4,847,069)trvn_TemporaryEquityValueRedeemableConvertibleSeriesB1PreferredStockConvertedIntoCommonStock
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
              (4,847,069)trvn_TemporaryEquityValueRedeemableConvertibleSeriesB1PreferredStockConvertedIntoCommonStock
Conversion of Series B-1 convertible preferred stock to common stock upon initial public offering (in shares)                 (4,750,000)trvn_TemporaryEquitySharesRedeemableConvertibleSeriesB1PreferredStockConvertedIntoCommonStock
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
               
Conversion of Series C convertible preferred stock to common stock upon initial public offering                       (59,938,120)trvn_TemporaryEquityValueRedeemableConvertibleSeriesCPreferredStockConvertedIntoCommonStock
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
        (59,938,120)trvn_TemporaryEquityValueRedeemableConvertibleSeriesCPreferredStockConvertedIntoCommonStock
Conversion of Series C convertible preferred stock to common stock upon initial public offering (in shares)                       (36,764,704)trvn_TemporaryEquitySharesRedeemableConvertibleSeriesCPreferredStockConvertedIntoCommonStock
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
         
Increase (Decrease) in Stockholders' Equity                                  
Stock-based compensation expense                           2,383,399us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
    2,383,399us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition
Exercise of stock options                         186us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
111,592us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
    111,778us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
Exercise of stock options (in shares)                         186,682us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
       
Accretion of Series A, Series B/B-1 and Series C convertible preferred stock to its redemption value                           (28,521)us-gaap_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
    (28,521)us-gaap_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock
Change in unrealized investment losses                               (18,782)us-gaap_AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingGainLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
(18,782)us-gaap_AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingGainLossNetOfTax
Net loss                             (49,700,875)us-gaap_NetIncomeLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
  (49,700,875)us-gaap_NetIncomeLoss
Conversion of convertible preferred stock to common stock upon initial public offering 4,044us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesAPreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
25,022,017us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesAPreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(25,026,061)us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesAPreferredStockMember
    (30,779,409)us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
766us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
4,846,303us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
4,847,069us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
5,930us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
59,932,190us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(59,938,120)us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
         
Conversion of convertible preferred stock to common stock upon initial public offering (in shares) 4,044,354us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesAPreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
          766,129us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
    5,929,789us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
             
Net conversion of preferred stock warrants common stock upon initial public offering                         20trvn_StockIssuedDuringPeriodValueConversionOfPreferredStockWarrants
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
(20)trvn_StockIssuedDuringPeriodValueConversionOfPreferredStockWarrants
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
     
Net conversion of preferred stock warrants common stock upon initial public offering (in shares)                         20,273trvn_StockIssuedDuringPeriodSharesConversionOfPreferredStockWarrants
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
       
Reclassification of convertible preferred stock warrant liability                           145,256trvn_AdjustmentsToAdditionalPaidInCapitalReclassificationOfConvertiblePreferredStockWarrantLiability
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
    145,256trvn_AdjustmentsToAdditionalPaidInCapitalReclassificationOfConvertiblePreferredStockWarrantLiability
Issuance of common stock warrants                           1,000us-gaap_ProceedsFromIssuanceOfWarrants
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
    1,000us-gaap_ProceedsFromIssuanceOfWarrants
Issuance of common stock, net of issuance costs                         22,369us-gaap_StockIssuedDuringPeriodValueIssuedForCash
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
107,267,954us-gaap_StockIssuedDuringPeriodValueIssuedForCash
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
    107,290,323us-gaap_StockIssuedDuringPeriodValueIssuedForCash
Issuance of common stock (in shares)                         22,368,449us-gaap_StockIssuedDuringPeriodSharesIssuedForCash
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
       
Balance at Dec. 31, 2014                         $ 39,241us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
$ 231,152,894us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
$ (131,969,725)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
$ (18,782)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
$ 99,203,628us-gaap_StockholdersEquity
Balance (in shares) at Dec. 31, 2014                         39,241,173us-gaap_CommonStockSharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
      39,241,173us-gaap_CommonStockSharesOutstanding
Balance (in shares) at Dec. 31, 2014     0us-gaap_TemporaryEquitySharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesAPreferredStockMember
    0us-gaap_TemporaryEquitySharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesBPreferredStockMember
    0us-gaap_TemporaryEquitySharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesB1PreferredStockMember
    0us-gaap_TemporaryEquitySharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= trvn_RedeemableConvertibleSeriesCPreferredStockMember