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Note 10 - Acquisitions (Tables) | 9 Months Ended
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Aug. 31, 2013
Disclosure Text Block Supplement [Abstract] |
Inventories |  | $ | 947,760 |
Equipment, tools and dies |  |  | 364,053 |
Goodwill and intangible assets |  |  | 618,729 |
Land and Building |  |  | 1,136,000 |
Total |  | $ | 3,066,542 |
Business Acquisition, Pro Forma Information [Table Text Block] |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | August 31, 2013 |  |  | August 31, 2012 |  |  | August 31, 2013 |  |  | August 31, 2012 |
Net Sales from Continuing Operations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
As Reported |  | $ | 9,350,391 |  |  | $ | 11,533,882 |  |  | $ | 27,015,804 |  |  | $ | 29,531,265 |
Pro Forma |  | $ | 9,350,391 |  |  | $ | 11,533,882 |  |  | $ | 27,015,804 |  |  | $ | 31,785,360 |
Net Income from Continuing Operations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
As Reported |  | $ | 26,394 |  |  | $ | 979,451 |  |  | $ | 1,359,894 |  |  | $ | 2,108,929 |
Pro Forma |  | $ | 26,394 |  |  | $ | 979,451 |  |  | $ | 1,359,894 |  |  | $ | 2,623,389 |
Basic Net income per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
As Reported |  | $ | 0.01 |  |  | $ | 0.24 |  |  | $ | 0.34 |  |  | $ | 0.52 |
Pro Forma |  | $ | 0.01 |  |  | $ | 0.24 |  |  | $ | 0.34 |  |  | $ | 0.65 |
Diluted Net income per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
As Reported |  | $ | 0.01 |  |  | $ | 0.24 |  |  | $ | 0.34 |  |  | $ | 0.52 |
Pro Forma |  | $ | 0.01 |  |  | $ | 0.24 |  |  | $ | 0.34 |  |  | $ | 0.65 |
Weighted average outstanding shares used to compute basic net income per share |  |  | 4,041,682 |  |  |  | 4,035,852 |  |  |  | 4,038,118 |  |  |  | 4,031,828 |
Weighted average outstanding shares used to compute diluted net income per share |  |  | 4,057,773 |  |  |  | 4,052,246 |  |  |  | 4,050,819 |  |  |  | 4,049,236 |

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- Definition Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. + 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=25497992&loc=d3e1392-128463 + Details
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