Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Computation for Basic and Diluted Loss Per Share

The following table sets forth the computation for basic and diluted loss per share:

	Three Months Ended March 31,
	2014		2015
Numerator:
Net loss	$	(3,504,439)	$	(4,018,380)
Numerator for basic and diluted earnings per share	$	(3,504,439)	$	(4,018,380)
Denominator:
Denominator for basic and diluted earnings per share — weighted-average shares		38,718,336		38,795,396
Basic and diluted loss per share	$	(0.09)	$	(0.10)