Stockholders' Equity - Equity Incentive Plans (Details) - USD ($) |
12 Months Ended | |
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Dec. 31, 2015 |
Dec. 31, 2014 |
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Options outstanding | ||
Equity Incentive Plans | ||
Stock-based compensation | $ 3,426,730 | $ 2,383,399 |
Options outstanding | Research and development | ||
Equity Incentive Plans | ||
Stock-based compensation | 1,460,061 | 1,129,244 |
Options outstanding | General and administrative | ||
Equity Incentive Plans | ||
Stock-based compensation | $ 1,966,669 | $ 1,254,155 |
2008 and 2013 Plans | Maximum | ||
Equity Incentive Plans | ||
Term of award | 10 years | |
Vesting period | 4 years |
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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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