Quarterly report pursuant to sections 13 or 15(d)

4. Capital stock (Details Narrative)

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4. Capital stock (Details Narrative) (USD $)
 6 Months Ended 184 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Common stock issued upon exercise of warrants, shares 19,937,130    
Common stock issued upon exercise of warrants, Amount $ 5,779,660    
Common stock issued for services, shares 50,000    
Common stock issued for services, Amount 49,000    
Common stock exercise price for services $ 0.98    
Commissions paid on warrants exercised by foreign (non-U.S.) investors 78,521    
Net cash provided by financing activities $ 5,701,139 $ 1,790,190 $ 40,620,158
Minimum [Member]
      
Common stock exercise price for warrant $ 0.25    
Maximum [Member]
      
Common stock exercise price for warrant $ 0.40