XML 30 R29.htm IDEA: XBRL DOCUMENT v2.4.0.6
Accounts payable and accrued liabilities (Tables)
12 Months Ended
Dec. 31, 2012
Accounts Payable And Accrued Liabilities Tables  
Accounts payable and accrued liabilities
    2012     2011  
Accrued liabilities related to:            
Consultants and professional fees   $ 114,640     $ 167,500  
Commissions payable on survey contracts     -       122,400  
Survey expenses     29,686       18,508  
Board of Directors' fees     60,000       98,612  
Wages and bonuses payable     351,780       183,198  
Vacation pay     51,078       81,042  
      607,184       671,260  
Trade payables, payroll withholdings and other     1,016,540       676,665  
    $ 1,623,724     $ 1,347,925