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Note 5 - Accrued Expenses | 3 Months Ended
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Feb. 28, 2013
Accounts Payable and Accrued Liabilities Disclosure [Text Block] |
(5) | Accrued Expenses
Major components of accrued expenses are:
|  | February 28, 2013 |  | November 30, 2012
Salaries, wages, and commissions |  | $ | 797,124 |  |  | $ | 924,123 |
Accrued warranty expense |  |  | 575,330 |  |  |  | 578,864 |
Other |  |  | 362,031 |  |  |  | 457,253 |
|  | $ | 1,734,485 |  |  | $ | 1,960,240 |

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 24 -Article 5 + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration