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Note 7. Stock-based Compensation: Schedule of Stock Based Compensation (Details) (USD $)	3 Months Ended		9 Months Ended
	May 31, 2013	May 31, 2012	May 31, 2013	May 31, 2012
Allocated stock-based compensation expense	$ 286,182	$ 310,544	$ 862,514	$ 891,054
Cost of Sales
Allocated stock-based compensation expense	16,022	16,021	48,067	48,067
Research and Development Expense
Allocated stock-based compensation expense	50,285	44,956	150,855	154,725
Selling, General and Administrative Expenses
Allocated stock-based compensation expense	$ 219,875	$ 249,567	$ 663,592	$ 688,262

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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