v2.4.0.8

Net Loss per Share (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2013
Numerator |  |  |
Historical net loss attributable to common stockholders | $ (7,050) | $ (3,746) |
Changes in the fair value of the warrant to purchase Series D redeemable convertible preferred stock | (688) | 8 | 33
Net loss attributable to common stockholders | (7,137) | (3,833) |
Denominator: |  |  |
Weighted-average common shares outstanding, basic and diluted (in shares) | 7,698,709 | 7,386,133 |
Net loss per share attributable to common stockholders, basic and diluted (in dollars per share) | $ (0.93) | $ (0.52) |
Pro Forma |  |  |
Numerator |  |  |
Historical net loss attributable to common stockholders | (7,137) |  |
Accretion of deferred preferred stock offering costs | 87 |  |
Changes in the fair value of the warrant to purchase Series D redeemable convertible preferred stock | 688 |  |
Net loss attributable to common stockholders | $ (6,362) |  |
Denominator: |  |  |
Weighted-average common shares outstanding, basic and diluted (in shares) | 7,698,709 |  |
Plus: conversion of redeemable convertible preferred stock to common stock (in shares) | 23,501,208 |  |
Pro forma denominator for basic and diluted net loss per share attributable to common stockholders (in shares) | 31,199,917 |  |
Net loss per share attributable to common stockholders, basic and diluted (in dollars per share) | $ (0.20) |  |

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