Income (Loss) Per Common Share (Tables)

12 Months Ended

Dec. 31, 2012

Income (Loss) Per Common Share

Schedule of reconciliation of numerators and denominators used in computing income (loss) per share

	2012			2011			2010
Net loss	$	(91,991,355	)	$	(15,845,382	)	$	(30,844,897	)
Weighted-average number of shares of Common Stock – basic	44,147,787			44,788,551			39,397,486
Loss per share – basic	$	(2.08	)	$	(0.35	)	$	(0.78	)
Weighted-average number of shares of Common Stock – diluted	44,147,787			44,788,551			39,397,486
Loss per share – diluted	$	(2.08	)	$	(0.35	)	$	(0.78	)