Quarterly report pursuant to Section 13 or 15(d)

6. Stock Options and Warrants (Details Narrative)

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6. Stock Options and Warrants (Details Narrative) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Proceeds from options exercised     $ 1,308,284 $ 5,701,139  
Share based compensation costs     437,222 922,730  
Options
          
Options granted     528,052    
Options cancelled or forfeited     90,000    
Options exercised     20,000    
Proceeds from options exercised     6,000    
Options outstanding 20,727,960   20,727,960   20,309,908
Weighted average remaining contractual life     6 years 8 months 12 days    
Aggregate intrinsic value of options outstanding 11,451,670   11,451,670    
Future unamortized compensation expense on unvested outstanding options 319,000   319,000    
Share based compensation costs 285,923 417,162 401,575 821,749  
Options | Employees
          
Options granted     145,000    
Options | Board Members
          
Options granted     383,052    
Options | 2004 Stock Option Plan
          
Options authorized 7,000,000   7,000,000    
Options outstanding 4,022,960   4,022,960    
Options available for grant 1,708,707   1,708,707    
Options | Outside the plan
          
Options granted     37,050,000    
Options cancelled or forfeited     17,485,000    
Options outstanding 16,705,000   16,705,000    
Warrants
          
Weighted average remaining contractual life     3 years 1 month 6 days    
Share based compensation costs (4,079) 53,420 35,647 100,981  
Aggregate intrinsic value of warrants outstanding 2,812,462   2,812,462    
Future unamortized compensation expense on unvested warrants 45,000   45,000    
Proceeds from warrants exercised     $ 1,302,284