Net Loss Per Common Share (Reconciliation of Net Loss Per Share) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Numerator:
Net loss	$ (3,388,586)	$ (5,524,324)	$ (7,213,566)	$ (11,287,356)
Preferred stock dividends	(957,307)	(1,029,735)	(1,915,025)	(2,064,042)
NET LOSS AVAILABLE TO COMMON SHAREHOLDERS	$ (4,345,893)	$ (6,554,059)	$ (9,128,591)	$ (13,351,398)
Denominator:
Weighted average common shares outstanding - basic (in shares)	76,592,200	57,443,706	74,192,028	54,571,012
Effect of dilutive securities (in shares)	0	0	0	0
Diluted weighted average shares outstanding (in shares)	76,592,200	57,443,706	74,192,028	54,571,012
Net loss per common share:
Basic (in dollars per share)	$ (0.06)	$ (0.11)	$ (0.12)	$ (0.24)
Diluted (in dollars per share)	$ (0.06)	$ (0.11)	$ (0.12)	$ (0.24)