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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
Sep. 30, 2013
Dec. 31, 2012
Receivables, net of allowance $ 101,154 $ 101,154
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 40,000,000 40,000,000
Common stock, shares issued (in shares) 19,176,789 15,237,304
Common stock, shares outstanding (in shares) 19,176,789 15,237,304
Series B preferred stock
   
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 20,000 20,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Series C convertible preferred stock
   
Preferred stock, par value (in dollars per share) $ 1,000 $ 1,000
Preferred stock, shares authorized (in shares) 750 750
Preferred stock, shares issued (in shares) 375 375
Preferred stock, shares outstanding (in shares) 375 375
5% preferred stock
   
Preferred stock, par value (in dollars per share) $ 25 $ 25
Preferred stock, shares authorized (in shares) 35,920 35,920
Preferred stock, shares issued (in shares) 2,427 2,427
Preferred stock, shares outstanding (in shares) 2,427 2,427