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11. Stockholder's Equity (Tables)
 9 Months Ended
Sep. 30, 2013
Equity [Abstract]  
Fair value of the warrants estimated at the date of grant using the Black-Scholes option pricing model
Risk-free interest rate   0.15%
Expected dividend Yield   None 
Expected term   one year 
Expected volatility   75.4%
Common Stock Warrant

 

 

    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     -       -  
   Warrants exercised     -       -  
   Warrants expired     -       -  
Balance, December 31, 2012     1,934,667     $ .25 - $4.50  
   No activity first quarter of 2013     -       -  
Warrants issued second quarter of 2013     362,500     $ 1.20  
Balance, September 30, 2013     2,297,167     $ .25 - $4.50  
Warrants Maturity
         
The above common stock warrants expire as follows:  
Year ended December 31:        
2013     412,500  
2014     1,157,750  
2015     476,917  
Thereafter     250,000  
      2,297,167