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11. Stockholder's Equity (Tables)
 12 Months Ended
Dec. 31, 2013
Equity [Abstract]  
Common Stock Warrants

 

    Number of Warrants     Exercise Prices  
Balance, December 31, 2010     725,000     $ .20 - $.75  
   Warrants exercised     (125,000 )   $ .30 - $.40  
Balance, December 31, 2011     600,000     $ .30 - $.60  
Warrants issued     1,734,667     $ 2.50 - $4.50  
   Warrants exercised     (250,000 )   $ .30 - $2.50  
   Warrants expired     (150,000 )   $ .30 - $.40  
Balance, December 31, 2012     1,934,667     $ .25 - $4.50  
Warrants issued     629,740     $ 1.20-$1.60  
   Warrants exercised     (25,000 )   $ 1.20  
   Warrants expired     (50,000 )   $ 4.50  
Balance, December 31, 2013     2,489,407     $ 0.60 - $4.50  
Warrants Maturity
Year ended December 31:                
2014             1,207,750  
2015             1,031,657  
Thereafter             250,000  
              2,489,407