Note 8 - Stockholders' Equity (Tables)

12 Months Ended

Aug. 31, 2012

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Number of Shares (#)			Weighted Average Exercise Price		Aggregate Intrinsic Value
Outstanding at August 31, 2010		232,472		$	8.42
Options granted		30,000			9.76
Options exercised		(66,633	)		6.97
Options terminated		(6,000	)		8.83
Outstanding at August 31, 2011		189,839		$	9.07
Options granted		26,000			16.45
Options exercised		3,966			8.71
Options terminated		(8,000	)		9.23
Outstanding at August 31, 2012		203,873		$	10.01	$	266,332
Exercisable at August 31, 2012		166,753		$	10.42	$	190,095

Stock Option Exercises [Member]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

Options Exercised	Exercise Price
1,966	$7.65
2,000	$9.75

Options Exercised	Exercise Price
40,000	$    5.38
3,300	7.65
666	7.75
8,000	8.01
4,000	8.57
1,334	9.75
4,000	9.76
5,333	12.84