Earnings per Common Share (Details) (USD $)	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Basic:
Net loss attributable to common stockholders	$ (17,477,287)	$ (5,123,551)	$ (6,944,030)	$ (19,241,213)
Basic and Diluted:
Weighted average common shares outstanding (denominator)	30,071,813	29,561,655	29,768,620	27,904,879
Net loss per common share basic and diluted	$ (0.58)	$ (0.17)	$ (0.23)	$ (0.69)

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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+ Details