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Summary of Significant Accounting Policies (Details 1)	3 Months Ended
Summary of Significant Accounting Policies (Details 1)	Mar. 31, 2015	Mar. 31, 2014
Dilutive adjustments to the weighted average number of common shares
Total	8,357,736	8,936,023
Employee Stock Option [Member]
Dilutive adjustments to the weighted average number of common shares
Total	2,272,022	2,127,699
Common Stock Purchase Warrants [Member]
Dilutive adjustments to the weighted average number of common shares
Total	6,085,714	6,808,324

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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