Earnings Per Share (Details 1) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Numerator
Net loss	$ (3,232,399)	$ (2,219,663)	$ (4,703,250)	$ (11,807,401)
Preferred Stock Dividends and Other Adjustments [Abstract]
Less: Series A redeemable convertible preferred stock dividends	186,904	28,875	560,712	28,875
Less: Accretion to redemption value of Series A redeemable convertible preferred stock	125,915	17,061	361,822	17,061
Net loss attributable to common stockholders	$ (3,545,218)	$ (2,265,599)	$ (5,625,784)	$ (11,853,337)
Denominator
Weighted average basic shares outstanding (in shares)	45,158,184	48,024,916	47,025,887	47,961,853
Effect of dilutive securities:
Stock options and restricted stock	0	0	0	0
Series A redeemable convertible preferred stock	0	0	0	0
Weighted average diluted shares outstanding (in shares)	45,158,184	48,024,916	47,025,887	47,961,853
Basic net loss per share attributable to common stockholders (in dollars per share)	$ (0.08)	$ (0.05)	$ (0.12)	$ (0.25)
Diluted net loss per share attributable to common stockholders (in dollars per share)	$ (0.08)	$ (0.05)	$ (0.12)	$ (0.25)