Summary of Significant Accounting Policies (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Summary of basic loss attributable to common shareholders
Net loss	$ (9,417,958)	$ (9,219,220)
Less preferred dividends		(1,028,351)
Net loss available to common shareholders	$ (9,417,958)	$ (10,247,571)