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Note 2 - Allowance for Doubtful Accounts | 12 Months Ended
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Nov. 30, 2012
Allowance for Credit Losses [Text Block] | (2) Allowance for Doubtful Accounts A summary of the Company’s activity in the allowance for doubtful accounts is as follows:
|  | November 30, 2012 |  |  | November 30, 2011 |
Balance, beginning |  | $ | 49,583 |  |  | $ | 114,834 |
Provision charged to expense |  |  | (7,654 | ) |  |  | (19,995 | )
Less amounts charged-off |  |  | (13,971 | ) |  |  | (45,256 | )
Balance, ending |  | $ | 27,958 |  |  | $ | 49,583 |

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- Definition The entire disclosure for allowance for credit losses. + References No definition available. + Details
Name: | us-gaap_AllowanceForCreditLossesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration