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Summary of Significant Accounting Policies (Details Textual) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012
Cash Equivalents, at Carrying Value | $ 1,900,000 | $ 2,700,000
Allocated Share-based Compensation Expense | 979,151 | 127,488
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award | the Company modified the vesting terms for its unvested performance based stock options and unvested restricted common stock of fifteen employees and non-employee directorsto vest on the earlier of the first closing in the pivotal clinical study for its lead drug candidate, or 50% on January 31, 2014 and 50% on January 31, 2015. |
Share-based Compensation, Total | 979,151 | 127,488
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 354,027 |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total | 1,000,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ 2.92 |
Undistributed Earnings Allocated to Participating Securities | 85,209 |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition | 10 months 28 days |
Restricted Stock Award [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ 0 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 0 |
Performance Shares [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares | 907,336 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Exercise Price, Beginning Balance | $ 2.81 |
Allocated Share-based Compensation Expense | $ 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 | 15,000 |
License and Milestone Revenues [Member] |  |
Percentage Of Revenue Accounted By Single Customer |  | 100.00%
Research Revenue [Member] |  |
Percentage Of Revenue Accounted By Single Customer |  | 100.00%

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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition Amount of 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. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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