Note 9 - Loan and Credit Agreements (Details) - Summary Of Term Debt (USD $)	Nov. 30, 2013	Nov. 30, 2012
Note 9 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long-term Debt	$ 7,480,923	$ 8,466,134
Less current portion of term debt	1,228,964	1,165,177
Term debt, excluding current portion	6,251,959	7,300,957
US Bank Loan 1 [Member]
Note 9 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long-term Debt	2,114,675	2,435,359
US Bank Loan 2 [Member]
Note 9 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long-term Debt	955,507	1,027,330
US Bank Loan 3 [Member]
Note 9 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long-term Debt	1,085,350	1,167,725
US Bank Loan 4 [Member]
Note 9 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long-term Debt	1,693,752	1,875,120
US Bank Loan 5 [Member]
Note 9 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long-term Debt	707,719	823,555
Iowa Finance Authority [Member]
Note 9 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long-term Debt	904,662	1,027,366
IDED [Member]
Note 9 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long-term Debt	14,375	41,866
IDED Note 1 [Member]
Note 9 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long-term Debt	4,883	14,649
IDED Note 2 [Member]
Note 9 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long-term Debt		48,830
West Union Community Development Corp [Member]
Note 9 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long-term Debt		$ 4,334