Note 10 - Loan and Credit Agreements - Summary Of Term Debt (Details) (Parentheticals) - USD ($)	12 Months Ended
	Nov. 30, 2016	Nov. 30, 2015
US Bank Loan 1 [Member]
Installments		$ 42,500
Interest rate		2.98%
US Bank Loan 2 [Member]
Installments	$ 11,000	$ 11,000
Interest rate	2.98%	2.98%
US Bank Loan 3 [Member]
Installments	$ 12,550	$ 12,550
Interest rate	2.98%	2.98%
US Bank Loan 4 [Member]
Installments	$ 27,800	$ 27,800
Interest rate	2.98%	2.98%
US Bank Loan 5 [Member]
Installments	$ 11,700	$ 11,700
Interest rate	3.15%	3.15%
US Bank Loan 6 [Member]
Installments	$ 5,556	$ 5,556
Interest rate	2.98%	2.98%
Iowa Finance Authority Term Loan [Member]
Installments	$ 12,500	$ 12,500
Interest rate	2.75%	2.75%