Note 10: Stock-based Compensation: Stock Option Rollforward (Details) (USD $)	12 Months Ended
Aug. 31, 2013	Aug. 31, 2012
Details
Options Outstanding, beginning of period		3,182,239
Outstanding beginning of period, weighted average exercise price		$ 3.54
Granted	1,368,000
Granted, weighted average exercise price	$ 1.46
Forfeited or expired	(337,666)
Forfeited or expired, weighted average exercise price	$ 3.65
Outstanding, End of Period	4,212,573
Outstanding, weighted average exercise price	$ 2.85
Outstanding, weighted average remaining contract term	6 years 11 months 12 days
Outstanding, Intrinsic Value	$ 111,322
Exercisable	2,201,597
Exercisable options, weighted average exercise price	$ 3.63
Exercisable options, weighted average remaining contract term	5 years 1 month 20 days
Exercisable aggregate intrinsic value	$ 62,989

No authoritative reference available.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

+ References

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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-Publisher FASB

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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