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Net Loss Per Common Share (Details)	3 Months Ended	12 Months Ended
Net Loss Per Common Share (Details)	Mar. 31, 2015	Dec. 31, 2014
Net Loss Per Common Share [Abstract]
Potentially dilutive securities	25,719,186	24,606,677

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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