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Loss Per Share (Tables)
 12 Months Ended
Dec. 31, 2014
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:
 
 
 
Year Ended December 31,
 
 
 
2013
 
2014
 
Numerator:
 
 
 
 
 
 
 
Net loss
 
$
(8,020,515)
 
$
(13,699,362)
 
Numerator for basic and diluted earnings per share
 
$
(8,020,515)
 
$
(13,699,362)
 
 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
Denominator for basic and diluted earnings per share — weighted-average shares outstanding
 
 
33,481,439
 
 
38,755,546
 
 
 
 
 
 
 
 
 
Basic and diluted loss per share
 
$
(0.24)
 
$
(0.35)