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Note 7 - Loan and Credit Agreements (Tables) | 3 Months Ended
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Feb. 28, 2013
Schedule of Debt [Table Text Block] |
|  | February 28, 2013 |  |  | November 30, 2012 |
West Bank loan payable in monthly installments of $42,500 including interest at 4.750%, due April 1, 2017 |  | $ | 2,337,035 |  |  | $ | 2,435,359 |
West Bank loan payable in monthly installments of $11,000 including interest at 4.750%, due April 1, 2017 |  |  | 1,006,721 |  |  |  | 1,027,330 |
West Bank loan payable in monthly installments of $12,550 including interest at 4.750%, due April 1, 2017 |  |  | 1,144,158 |  |  |  | 1,167,725 |
West Bank loan payable in monthly installments of $27,800 including interest at 4.50%, due May 1, 2017 |  |  | 1,812,864 |  |  |  | 1,875,120 |
U.S. Bank loan payable in monthly installments of $11,700 including interest at 3.15%, due May 10, 2017 |  |  | 794,989 |  |  |  | 823,555 |
Iowa Finance Authority loan payable in monthly installments of $12,892 including interest at 2.75%, due June 1, 2020 |  |  | 997,656 |  |  |  | 1,027,366 |
IDED loan payable in monthly installments of $2,437 including interest at 6%, due June 1, 2014 |  |  | 35,146 |  |  |  | 41,866 |
IDED loan payable in monthly installments of $813 including interest at 0%, due June 1, 2014 |  |  | 12,208 |  |  |  | 14,649 |
IDED loan payable in monthly installments of $0 including interest at 0%, due July 1, 2014 |  |  | 48,830 |  |  |  | 48,830 |
West Union Community Development Corporation loan payable in annual installments of $4,333 including interest at 0%, due September 1, 2013 |  |  | 4,334 |  |  |  | 4,334 |
Total term debt |  | $ | 8,193,941 |  |  | $ | 8,466,134 |
Less current portion of term debt |  |  | 1,180,751 |  |  |  | 1,165,177 |
Term debt, excluding current portion |  | $ | 7,013,190 |  |  | $ | 7,300,957 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration