Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) (USD $)	9 Months Ended
	Aug. 31, 2013	Nov. 30, 2012	Feb. 28, 2013	May 01, 2010
US Bank Loan 1 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments (in Dollars)	$ 42,500	$ 42,500
Interest rate	2.98%	2.98%
US Bank Loan 2 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments (in Dollars)	11,000	11,000
Interest rate	2.98%	2.98%
US Bank Loan 3 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments (in Dollars)	12,550	12,550
Interest rate	2.98%	2.98%
US Bank Loan 4 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments (in Dollars)	27,800	27,800
Interest rate	2.98%	2.98%
US Bank Loan 5 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments (in Dollars)	11,700	11,700
Interest rate	3.15%	3.15%
Iowa Finance Authority [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments (in Dollars)	12,500	12,500
Interest rate	2.75%	2.75%	2.75%	3.50%
IDED [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments (in Dollars)	2,437	2,437
Interest rate	6.00%	6.00%
IDED Note 1 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments (in Dollars)	813	813
Interest rate	0.00%	0.00%
IDED Note 2 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments (in Dollars)	0	0
Interest rate	0.00%	0.00%
West Union Community Development Corp [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments (in Dollars)	$ 4,333	$ 4,333
Interest rate	0.00%	0.00%