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Accounts payable and accrued liabilities (Tables)
12 Months Ended
Dec. 31, 2014
Accounts Payable And Accrued Liabilities Tables  
Accounts payable and accrued liabilities
    2014     2013  
Accrued liabilities related to:            
Consultants and professional fees     $122,500       $105,000  
Board of Directors' fees     40,000       -  
Survey and other projects     14,308       -  
Vacation pay, wages and bonuses payable     121,632       115,831  
      298,440       220,831  
Trade payables, payroll withholdings and other     484,186       718,524  
                 
      782,626       939,355