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Note 7. Stock-based Compensation: Schedule of Stock Based Compensation (Details) (USD $)
 3 Months Ended
Nov. 30, 2014
Nov. 30, 2013
Stock-based compensation $ 165,105us-gaap_ShareBasedCompensation $ 216,229us-gaap_ShareBasedCompensation
Cost of Sales    
Allocated Share-based Compensation Expense 8,832us-gaap_AllocatedShareBasedCompensationExpense
/ fil_ShareBasedCompensationAllocationAxis
= fil_CostOfSales1Member		 15,650us-gaap_AllocatedShareBasedCompensationExpense
/ fil_ShareBasedCompensationAllocationAxis
= fil_CostOfSales1Member
Research and Development    
Allocated Share-based Compensation Expense 24,273us-gaap_AllocatedShareBasedCompensationExpense
/ fil_ShareBasedCompensationAllocationAxis
= fil_ResearchAndDevelopmentMember		 46,448us-gaap_AllocatedShareBasedCompensationExpense
/ fil_ShareBasedCompensationAllocationAxis
= fil_ResearchAndDevelopmentMember
Selling, General and Administrative    
Allocated Share-based Compensation Expense $ 132,000us-gaap_AllocatedShareBasedCompensationExpense
/ fil_ShareBasedCompensationAllocationAxis
= fil_SellingGeneralAndAdministrativeMember		 $ 154,131us-gaap_AllocatedShareBasedCompensationExpense
/ fil_ShareBasedCompensationAllocationAxis
= fil_SellingGeneralAndAdministrativeMember