Summary of Significant Accounting Policies (Details Textual) - USD ($) |
9 Months Ended | |
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Sep. 30, 2015 |
Dec. 31, 2014 |
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| Summary of significant accounting policies (Textual) | ||
| Short-term investments | $ 5,745,024 | |
| Deferred offering costs reclassified to additional paid-in-capital | 749,386 | |
| Additional offering related costs | 35,811 | |
| Unrecognized stock option compensation expense | $ 919,044 | |
| Recognized options vest over period | 4 years |
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- Definition The aggregate cost related to additional offering costs during the reporting period. No definition available.
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- References No definition available.
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- Definition Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Unrecognized cost of unvested options awarded to employees as compensation. No definition available.
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- Definition Weighted average remaining contractual term for fully vested and expected to vest options that are exercisable or convertible, 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 Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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