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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
Total
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Balance at Dec. 31, 2013 $ 949,935 $ 107 $ 91,736 $ 79,234,745 $ (78,376,653)
Balance (in Shares) at Dec. 31, 2013 107,172 91,735,662    
Stock-based compensation expense $ 2,143 $ 49 2,094
Stock-based compensation expense (in Shares)   49,858    
Preferred stock dividends (200,947)       $ (200,947)
Net loss (718,826)       (718,826)
Balance at Dec. 31, 2014 $ 32,305 $ 107 $ 91,785 79,236,839 (79,296,426)
Balance (in Shares) at Dec. 31, 2014 107,172 91,785,520    
Net loss $ (223,851)        
Purchase of preferred stock 273,244 $ (93) (57,407) $ 330,744
Purchase of preferred stock (in Shares)   (93,570)   (223,851)
Balance at Dec. 31, 2015 $ 81,698 $ 14 $ 91,785 $ 79,179,432 $ (79,189,533)
Balance (in Shares) at Dec. 31, 2015 13,602 91,785,520