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Offerings of Common Stock (Tables)
12 Months Ended
Dec. 31, 2013
Stockholders Equity Note [Abstract]  
Schedule of Common Stock Classified Outside of Stockholders' Equity
Activity in common stock classified outside of stockholders’ equity (deficit) was as follows:
  
 
 
Number of
Shares
 
Amount
 
Balance, December 31, 2011
 
6,063,256
 
$
7,854,682
 
Issuance of common stock classified outside of stockholders’ equity (deficit) , excluding offering costs of $180,790 offset against paid-in capital
 
13,257,267
 
 
16,633,328
 
Reclassification to stockholders’ equity (deficit)
 
(9,758,676)
 
 
(12,712,286)
 
Balance, December 31, 2012
 
9,561,847
 
$
11,775,724
 
Issuance of common stock classified outside of stockholders’ equity (deficit)
 
 
 
 
Reclassification to stockholders’ equity (deficit)
 
(4,561,847)
 
 
(6,275,724)
 
Balance, December 31, 2013
 
5,000,000
 
$
5,500,000