Summary of Significant Accounting Policies (Details Textual) (USD $)	0 Months Ended	12 Months Ended
Jan. 06, 2014	Dec. 31, 2014	Dec. 31, 2013
Allocated Share-based Compensation Expense		$ 1,892,835	$ 979,151
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		337,689	354,027
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized		1,600,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition		2 years 5 months 8 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 5.45
Cash and Cash Equivalents, Fair Value Disclosure		0	1,933,480
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares	366,126	149,498
Allocated Share-based Compensation Expense	$ 836,000	$ 166,000	$ 422,000
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award			the Company modified 907,336 existing time-vested and performance stock options by lowering the exercise price to $2.81. Additionally, the Company modified the vesting terms for its unvested performance stock options and unvested restricted stock to vest on the earlier of the first dosing in the pivotal clinical study for its lead drug candidate, or 50% on January 31, 2014 and 50% on January 31, 2015.
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			12,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		0	15,000

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.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements.

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