Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) (USD $)	3 Months Ended	12 Months Ended
	Feb. 28, 2014	Nov. 30, 2013	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	$ 42,500	$ 42,500
Interest	2.98%	2.98%
US Bank Loan 2 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments	11,000	11,000
Interest	2.98%	2.98%
US Bank Loan 3 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments	12,550	12,550
Interest	2.98%	2.98%
US Bank Loan 4 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments	27,800	27,800
Interest	2.98%	2.98%
US Bank Loan 5 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments	11,700	11,700
Interest	3.15%	3.15%
Iowa Finance Authority [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments	12,500	12,500
Interest	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	2,437	2,437
Interest	6.00%	6.00%
IDED Note 2 [Member]
Note 7 - Loan and Credit Agreements (Details) - Summary Of Term Debt (Parentheticals) [Line Items]
Installments	$ 813	$ 813
Interest	0.00%	0.00%