Common Stock - Additional Information (Detail) - USD ($) |
6 Months Ended | |
|---|---|---|
Jun. 30, 2015 |
Dec. 31, 2014 |
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| Equity [Abstract] | ||
| Common stock, shares authorized | 150,000,000 | 150,000,000 |
| Common stock, par value | $ 0.0001 | $ 0.0001 |
| Common stock, shares issued | 30,745,627 | 25,938,332 |
| Common stock, shares outstanding | 30,745,627 | 25,938,332 |
| Net proceeds from exercise of stock options and warrants | $ 4,402,000 | |
| Common stock issued upon the exercise of stock options and warrants | 4,807,295 |
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- Definition Issuance of Common stock shares upon exercise of options and warrants. No definition available.
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- Definition Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition The total cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards, including stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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