Net Loss per Share (Details Textual)	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Equity Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	4,490,497	3,909,580
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	963,168	1,632,501

- Definition

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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