v2.4.0.8
Condensed Consolidated Statements of Changes in Stockholders' Equity (Deficit) (USD $)
In Thousands, except Share data, unless otherwise specified
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Total
Balance at Dec. 31, 2013 $ 8 $ 7,817 $ (99,849) $ (92,024)
Balance (in shares) at Dec. 31, 2013 7,629,133     7,629,133
Increase (Decrease) in Stockholders' Equity        
Exercise of stock options   1,222   1,222
Exercise of stock options (in shares) 552,137      
Grant of common stock   55   55
Grant of common stock (in shares) 5,000      
Accretion of issuance costs on redeemable convertible preferred stock   (89)   (89)
Stock-based compensation expense   5,486   5,486
Conversion of redeemable convertible preferred stock to common stock 23 98,113   98,136
Conversion of redeemable convertible preferred stock to common stock (in shares) 23,501,208      
Conversion of Series D warrant to common stock warrant   821   821
Issuance of common stock from initial public offering, net of issuance costs 9 100,293   100,302
Issuance of common stock from initial public offering, net of issuance costs (in shares) 8,626,377      
Exercise of warrants to purchase common stock (in shares) 32,709      
Net loss     (24,982) (24,982)
Balance at Sep. 30, 2014 $ 40 $ 213,718 $ (124,831) $ 88,927
Balance (in shares) at Sep. 30, 2014 40,346,564     40,346,564