Note 10: Stock-based Compensation: Stock Option Rollforward (Details) (USD $)	12 Months Ended
Aug. 31, 2012
Options Outstanding, beginning of period	2,852,239
Outstanding beginning of period, weighted average exercise price	$ 3.74
Granted	408,000
Granted, weighted average exercise price	$ 2.19
Forfeited or expired	(78,000)
Forfeited or expired, weighted average exercise price	$ 4.02
Outstanding, End of Period	3,182,239
Outstanding, weighted average exercise price	$ 3.54
Outstanding, weighted average remaining contract term	6.72
Outstanding, Intrinsic Value	$ 124,222
Exercisable	1,684,777
Exercisable options, weighted average exercise price	$ 3.76
Exercisable options, weighted average remaining contract term	5.53
Exercisable aggregate intrinsic value	$ 113,753

No authoritative reference available.

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+ References

No definition available.

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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.

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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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No definition available.

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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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