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Note 8 - Stockholders' Equity (Detail) - Exercised Stock Options: (USD $)	12 Months Ended
	Aug. 31, 2012	Aug. 31, 2011
Options Exercised	3,966	(66,633)
Exercise Price (in Dollars per share)	$ 8.71	$ 6.97
Exercise 1 - FY12 [Member]
Options Exercised	1,966
Exercise Price (in Dollars per share)	$ 7.65
Exercise 2 - FY12 [Member]
Options Exercised	2,000
Exercise Price (in Dollars per share)	$ 9.75
Exercise 1 [Member]
Options Exercised		40,000
Exercise Price (in Dollars per share)		$ 5.38
Exercise 2 [Member]
Options Exercised		3,300
Exercise Price (in Dollars per share)		$ 7.65
Exercise 3 [Member]
Options Exercised		666
Exercise Price (in Dollars per share)		$ 7.75
Exercise 4 [Member]
Options Exercised		8,000
Exercise Price (in Dollars per share)		$ 8.01
Exercise 5 [Member]
Options Exercised		4,000
Exercise Price (in Dollars per share)		$ 8.57
Exercise 6 [Member]
Options Exercised		1,334
Exercise Price (in Dollars per share)		$ 9.75
Exercise 7 [Member]
Options Exercised		4,000
Exercise Price (in Dollars per share)		$ 9.76
Exercise 8 [Member]
Options Exercised		5,333
Exercise Price (in Dollars per share)		$ 12.84

- Definition

Number of share options (or share units) exercised during the current period.

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