Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (USD $)	May 31, 2013	Nov. 30, 2012
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long Term Debt	$ 8,143,165	$ 8,466,134
Less current portion of term debt	1,282,782	1,165,177
Term debt, excluding current portion	6,860,383	7,300,957
US Bank [Member] | Loan 1 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long Term Debt	2,335,500	2,435,359
US Bank [Member] | Loan 2 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long Term Debt	1,006,500	1,027,330
US Bank [Member] | Loan 3 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long Term Debt	1,143,600	1,167,725
US Bank [Member] | Loan 4 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long Term Debt	1,833,510	1,875,120
US Bank [Member] | Loan 5 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long Term Debt	765,999	823,555
Iowa Finance Authority [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long Term Debt	966,801	1,027,366
IDED [Member] | Loan 1 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long Term Debt	28,325	41,866
IDED [Member] | Loan 2 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long Term Debt	9,766	14,649
IDED [Member] | Loan 3 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long Term Debt	48,830	48,830
West Union Community Development Corp [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt [Line Items]
Long Term Debt	$ 4,334	$ 4,334