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Note 11 - Stock-Based Compensation (Tables)

12 Months Ended

Aug. 31, 2012

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	August 31, 2012		August 31, 2011
Dividend yield	0.00%		0.00%
Expected volatility	48.8%		49.2%
Expected life of option	5 years		5 years
Weighted average risk-free interest rate	1.31 %		1.31 %

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

X

- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration