Note 7 - Loan and Credit Agreements (Detail) - Summary Of Term Debt (Parentheticals) (USD $)	1 Months Ended		3 Months Ended
	Jun. 30, 2009	May 31, 2010	Feb. 28, 2013 West Bank [Member] Loan 1 [Member]	Nov. 30, 2012 West Bank [Member] Loan 1 [Member]	Feb. 28, 2013 West Bank [Member] Loan 2 [Member]	Nov. 30, 2012 West Bank [Member] Loan 2 [Member]	Feb. 28, 2013 West Bank [Member] Loan 3 [Member]	Nov. 30, 2012 West Bank [Member] Loan 3 [Member]	Feb. 28, 2013 West Bank [Member] Loan 4 [Member]	Nov. 30, 2012 West Bank [Member] Loan 4 [Member]	Feb. 28, 2013 US Bank [Member]	Nov. 30, 2012 US Bank [Member]	Feb. 28, 2013 Iowa Finance Authority [Member]	Nov. 30, 2012 Iowa Finance Authority [Member]	Feb. 28, 2013 IDED [Member] Loan 1 [Member]	Nov. 30, 2012 IDED [Member] Loan 1 [Member]	Feb. 28, 2013 IDED [Member] Loan 2 [Member]	Nov. 30, 2012 IDED [Member] Loan 2 [Member]	Feb. 28, 2013 IDED [Member] Loan 3 [Member]	Nov. 30, 2012 IDED [Member] Loan 3 [Member]	Feb. 28, 2013 West Union Community Development Corp [Member]	Nov. 30, 2012 West Union Community Development Corp [Member]
Monthly Installments (in Dollars)	$ 1,583		$ 42,500	$ 42,500	$ 11,000	$ 11,000	$ 12,550	$ 12,550	$ 27,800	$ 27,800	$ 11,700	$ 11,700	$ 12,892	$ 12,892	$ 2,437	$ 2,437	$ 813	$ 813	$ 0	$ 0	$ 4,333	$ 4,333
Interest Rate	0.00%	3.50%	4.75%	4.75%	4.75%	4.75%	4.75%	4.75%	4.50%	4.50%	3.15%	3.15%	2.75%	2.75%	6.00%	6.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%