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Note 12 - Equity Incentive Plan (Tables) | 12 Months Ended
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Nov. 30, 2012
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | 2012 |  |  | 2011 |
Expected Volatility |  |  | 68.42 | % |  |  | 57.71 | %
Expected Dividend Yield |  |  | 1.007 | % |  |  | 0.590 | %
Expected Term (in years) |  |  | 2 |  |  |  | 2 |
Risk-Free Rate |  |  | 3.25 | % |  |  | 3.25 | %
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
Options |  | Shares |  |  | Weighted-Average Exercise Price |  |  | Weighted-Average Remaining Contractual Term |  |  | Aggregate Intrinsic Value |
Options outstanding at beginning of period |  |  | 153,000 |  |  | $ | 9.32 |  |  | - |  |  | - |
Granted |  |  | 14,000 |  |  | $ | 6.75 |  |  | - |  |  | - |
Exercised |  |  | (2,000) |  |  | $ | 4.56 |  |  | - |  |  | $ | 5,660 |
Options Expired or Forfeited |  |  | (2,000) |  |  | $ | 8.66 |  |  | - |  |  |  | - |
Options outstanding at end of period |  |  | 163,000 |  |  | $ | 9.16 |  |  |  | 5.60 |  |  | $ | 34,700 |
Options exercisable at end of period |  |  | 163,000 |  |  | $ | 9.16 |  |  |  | 5.60 |  |  | $ | 34,700 |
Options |  | Shares |  |  | Weighted-Average Exercise Price |  |  | Weighted-Average Remaining Contractual Term |  |  | Aggregate Intrinsic Value |
Options outstanding at beginning of period |  |  | 155,500 |  |  | $ | 8.85 |  |  |  |  |  |  |
Granted |  |  | 21,000 |  |  | $ | 7.40 |  |  |  |  |  |  |
Exercised |  |  | (17,500) |  |  | $ | 4.25 |  |  |  |  |  | $ | 96,060 |
Options Expired or Forfeited |  |  | (6,000) |  |  | $ | 5.01 |  |  |  |  |  |  |  |
Options outstanding at end of period |  |  | 153,000 |  |  | $ | 9.32 |  |  |  | 7.12 |  |  | $ | 46,590 |
Options exercisable at end of period |  |  | 153,000 |  |  | $ | 9.32 |  |  |  | 7.12 |  |  | $ | 46,590 |
Schedule of Nonvested Share Activity [Table Text Block] |
Non-vested Shares |  | Shares |  | Weighted-Average Grant-Date Fair Value
Non-vested at beginning of period |  |  | - |  | $0.00
Granted |  |  | 14,000 |  | $1.26
Vested |  |  | (14,000) |  | $1.26
Forfeited |  |  | - |  | $0.00
Non-vested at end of period |  |  | 0 |  |

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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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- 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
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