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Note 10 - Acquisitions (Detail) - Unaudited pro forma information (USD $) | 3 Months Ended
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Feb. 28, 2013 | Feb. 29, 2012
Net Sales from Continuing Operations: |  |
As Reported (in Dollars) | $ 8,415,104 | $ 6,312,216
Pro Forma (in Dollars) | 8,415,104 | 7,216,848
Net Income from Continuing Operations: |  |
As Reported (in Dollars) | 819,254 | 193,498
Pro Forma (in Dollars) | $ 819,254 | $ 222,848
Basic Net income per Share: |  |
As Reported | $ 0.20 | $ 0.05
Pro Forma | $ 0.20 | $ 0.06
Diluted Net income per Share: |  |
As Reported | $ 0.20 | $ 0.05
Pro Forma | $ 0.20 | $ 0.06
Weighted average outstanding shares used to compute basic net income per share (in Shares) | 4,035,052 | 4,028,193
Weighted average outstanding shares used to compute diluted net income per share (in Shares) | 4,047,134 | 4,046,125

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- Definition The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 54 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 55 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph r(2, 3) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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