Earnings Per Share (Details 1) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Numerator
Net (loss) income	$ (4,296,612)	$ 5,262,379
Effects of Series A redeemable convertible preferred stock:
Less: Series A redeemable convertible preferred stock dividends	192,608	190,786
Less: Accretion to redemption value of Series A redeemable convertible preferred stock	163,669	137,417
Net (loss) income attributable to common stockholders	$ (4,652,889)	$ 4,934,176
Denominator
Weighted average basic shares outstanding (in shares)	41,882,232	40,935,380
Effect of dilutive securities:
Stock options and restricted stock	0	1,547,351
Series A redeemable convertible preferred stock	0	8,781,516
Weighted average diluted shares outstanding (in shares)	41,882,232	51,264,247
Basic net (loss) income per share attributable to common stockholders (in dollars per share)	$ (0.11)	$ 0.12
Diluted net (loss) income per share attributable to common stockholders (in dollars per share)	$ (0.11)	$ 0.10