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Note 5 - Shareholders' Equity (Tables) | 6 Months Ended
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Feb. 28, 2013
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  | Number of Options |  |  | Weighted-Average Exercise Price |  |  | Weighted-Average Remaining Contractual Term |  |  | Approximate Aggregate Instrinsic Value |
Oustanding at beginning of period (Aug. 31, 2012) |  |  | 215,000 |  |  | $ | 5.88 |  |  |  |  |  |  |
Granted |  |  | 32,500 |  |  |  | 3.15 |  |  |  |  |  |  |
Exercised |  |  | - |  |  |  | - |  |  |  |  |  |  |
Forfeited or expired |  |  | - |  |  |  | - |  |  |  |  |  |  |
Outstanding at February 28, 2013 |  |  | 247,500 |  |  |  | 5.52 |  |  |  | 6.4 |  |  | $ | 161,475 |
Options exercisable at February 28, 2013 |  |  | 205,000 |  |  | $ | 6.03 |  |  |  | 5.5 |  |  | $ | 114,165 |
Schedule of Nonvested Share Activity [Table Text Block] |
|  | Number of Options |  |  | Weighted- Average Grant Date Fair Value |
Non-vested options oustanding at beginning of period |  |  | 22,500 |  |  | $ | 1.72 |
Granted |  |  | 32,500 |  |  |  | 2.36 |
Vested |  |  | (12,500 | ) |  |  | 1.50 |
Forfeited |  |  | - |  |  |  | - |
Options not vested at February 28, 2013 |  |  | 42,500 |  |  | $ | 2.28 |

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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- 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 + Details
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