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Consolidated Statements of Stockholders' Equity - USD ($)
Series A Convertible Preferred Stock [Member]
Series B Convertible Preferred Stock [Member]
Series C Convertible Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Balance (in shares) at Dec. 31, 2012 788 18,733,277      
Balance at Dec. 31, 2012 $ 312,196 $ 18,733 $ 25,587,148 $ (24,767,142) $ 1,150,935
Sale of common stock for cash upon warrant exercise (in shares) 2,933,333      
Sale of common stock for cash upon warrant exercise $ 2,933 1,640,400 1,643,333
Issuance of common stock for services (in shares) 50,000      
Issuance of common stock for services $ 50 $ 20,450 20,500
Sale of convertible preferred stock for cash (in shares) 1,650      
Sale of convertible preferred stock for cash $ 360,229 $ 1,255,569 $ 1,615,798
Conversion of preferred stock (in shares) (717) 2,048,570      
Conversion of preferred stock to common stock $ (611,839) $ 2,049 $ 609,790
Stock-based compensation expense $ 381,604 $ 381,604
Net loss $ (2,284,943) (2,284,943)
Balance (in shares) at Dec. 31, 2013 71 1,650 23,765,180      
Balance at Dec. 31, 2013 $ 60,586 $ 1,255,569 $ 23,765 $ 28,239,392 $ (27,052,085) 2,527,227
Sale of common stock for cash upon warrant exercise (in shares) 3,176,000      
Sale of common stock for cash upon warrant exercise $ 3,176 870,224 873,400
Issuance of common stock for services (in shares) 378,205      
Issuance of common stock for services $ 378 99,622 $ 100,000
Conversion of preferred stock (in shares) (71) (1,550) 4,631,428      
Conversion of preferred stock to common stock $ (60,586) $ (1,179,474) $ 4,632 1,235,428
Stock-based compensation expense $ 379,103 $ 379,103
Net loss $ (2,733,555) (2,733,555)
Balance (in shares) at Dec. 31, 2014 100 31,950,813      
Balance at Dec. 31, 2014 $ 76,095 $ 31,951 $ 30,823,769 $ (29,785,640) 1,146,175
Sale of convertible preferred stock for cash (in shares) 3,000      
Sale of convertible preferred stock for cash $ 983,941 1,695,869 2,679,810
Stock-based compensation expense $ 67,905 67,905
Net loss $ (2,689,287) (2,689,287)
Balance (in shares) at Dec. 31, 2015 100 3,000 31,950,813      
Balance at Dec. 31, 2015 $ 76,095 $ 983,941 $ 31,951 $ 32,587,543 $ (32,474,927) $ 1,204,603