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8. Stockholder's Equity (Details Narrative) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Sale of common stock $ 2,281,599 $ 3,041,918 $ 3,492,302
Unregistered common stock sold 1,734,667   350,000
Unregistered common stock value 462,476 1,160,217 799,522
Stock Issued for services, value 451,232    
Stock issuance expenses 211,818 230,004  
Prepaid directors’ fees 9,410    
Preferred stock autorized 10,000,000 10,000,000  
Preferred stock par value $ 0.01 $ 0.01  
Preferred shares outstanding 0 0  
Series B Preferred Stock [Member]
      
Cumulative dividends in arrear 135,000 127,500  
Dividend per share   $ 2.50  
Series D Preferred Stock [Member]
      
Cumulative dividends in arrear 378,069 336,920  
Preferred shares outstanding 1,751,005    
Liquidation preference value of preferred stock series D 4,755,069 4,377,513  
Director [Member]
      
Unregistered common stock sold     130,000
Unregistered common stock value     67,600
Common stock not issued   95,835  
Common stock not issued value   $ 230,004  
Common Stock [Member] | Herbert Denton [Member]
      
Stock Issued for services, shares 100,000    
Common Stock [Member] | Director [Member]
      
Stock Issued for services, shares 165,827