v2.4.0.8

Condensed Consolidated Statements of Changes in Stockholders' Equity (Deficit) (USD $) In Thousands, except Share data, unless otherwise specified | Total | Common Stock | Additional Paid-In Capital | Accumulated Deficit
--- | --- | --- | --- | ---
Balance at Dec. 31, 2013 | $ (92,024) | $ 8 | $ 7,817 | $ (99,849)
Balance (in shares) at Dec. 31, 2013 | 7,629,133 | 7,629,133 |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |
Exercise of stock options | 1,023 |  | 1,023 |
Exercise of stock options (in shares) |  | 464,803 |  |
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 | 3,239 |  | 3,239 |
Conversion of redeemable convertible preferred stock to common stock | 98,136 | 23 | 98,113 |
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 | 100,302 | 9 | 100,293 |
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 | (17,645) |  |  | (17,645)
Balance at Jun. 30, 2014 | $ 93,818 | $ 40 | $ 211,272 | $ (117,494)
Balance (in shares) at Jun. 30, 2014 | 40,259,230 | 40,259,230 |  |

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