Trevena, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Deficit) (Details)

Stockholders' Equity (Deficit) (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended			1 Months Ended	12 Months Ended
	Dec. 10, 2014	Mar. 06, 2014	Feb. 05, 2014	Mar. 06, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stockholders' (deficit) equity
Issuance of common stock in public offering (in shares)	11,250,000
Issuance of common stock underwriters allotment option (in shares)	1,598,000
Shares of common stock sold	12,848,000	270,449	9,250,000
Public offering price (in dollars per share)	$ 4.00us-gaap_EquityIssuancePerShareAmount	$ 7.00us-gaap_EquityIssuancePerShareAmount	$ 7.00us-gaap_EquityIssuancePerShareAmount
Aggregate gross proceeds from shares sold	$ 51.4	$ 1.9	$ 64.8
Redeemable convertible preferred stock, conversion ratio					0.1613trvn_TemporaryEquityConversionRatio	0.1613trvn_TemporaryEquityConversionRatio
Number of outstanding warrants not exercised as part of the IPO				22,580
Shares of common stock issued upon conversion of outstanding convertible preferred stock and net exercise of a portion of warrants				15,728,286
Redeemable convertible preferred stock outstanding which converted into common shares
Preferred Shares Outstanding						97,389,703
Conversion into common shares upon initial public offering (in shares)						15,708,013
Series A convertible preferred stock
Redeemable convertible preferred stock outstanding which converted into common shares
Preferred Shares Outstanding					0	25,074,999	25,074,999
Conversion into common shares upon initial public offering (in shares)				4,044,354
Series B convertible preferred stock
Stockholders' (deficit) equity
Number of shares in warrant issued in connection with a banking facility						125,000
Redeemable convertible preferred stock outstanding which converted into common shares
Preferred Shares Outstanding					0	30,800,000	30,800,000
Conversion into common shares upon initial public offering (in shares)				4,967,741
Series B 1 convertible preferred stock
Redeemable convertible preferred stock outstanding which converted into common shares
Preferred Shares Outstanding					0	4,750,000	4,200,000
Conversion into common shares upon initial public offering (in shares)				766,129
Series C convertible preferred stock
Redeemable convertible preferred stock outstanding which converted into common shares
Preferred Shares Outstanding					0	36,764,704
Conversion into common shares upon initial public offering (in shares)				5,929,789