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2. Income (Loss) Per Common Share (Tables)
6 Months Ended
Jun. 30, 2014
Net loss per share of common stock:  
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

    June 30, 2014     June 30, 2013  
Warrants     2,039,407       2,297,167  
Convertible preferred stock     1,751,005       1,751,005  
Total possible dilution     3,790,412       4,048,172