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2. Significant Accounting Policies: Property, Plant and Equipment: Property, Plant and Equipment, Estimated Useful Lives (Details)
9 Months Ended
May 31, 2013
Equipment
 
Property, Plant and Equipment, Useful Life, Minimum 2
Property, Plant and Equipment, Useful Life, Maximum 10
Building
 
Property, Plant and Equipment, Useful Life, Minimum 5
Property, Plant and Equipment, Useful Life, Maximum 30