Net Loss Per Share (Computation of Basic and Diluted EPS) (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net loss per common share:
Numerator for basic EPS	$ (3,962,208)	$ (56,868,442)	$ (3,006,792)	$ (4,920,147)	$ (4,316,661)	$ (1,915,281)	$ 2,806,427	$ (5,812,912)	$ (68,757,589)	$ (9,238,427)	$ (32,031,175)
Effect of dilutive securities
Numerator for diluted EPS									$ (68,757,589)	$ (9,238,427)	$ (32,031,175)
Denominator for basic EPS - weighted average shares									11,554,566	6,944,928	5,482,627
Effect of dilutive securities
Denominator for diluted EPS									11,554,566	6,944,928	5,482,627
Basic EPS	$ (0.23)	$ (4.49)	$ (0.37)	$ (0.61)	$ (0.55)	$ (0.25)	$ 0.42	$ (1.06)	$ (5.95)	$ (1.33)	$ (5.84)
Diluted EPS	$ (0.23)	$ (4.49)	$ (0.37)	$ (0.61)	$ (0.55)	$ (0.25)	$ 0.32	$ (1.06)	$ (5.95)	$ (1.33)	$ (5.84)