Note 10 - Acquisitions (Details) (USD $)	6 Months Ended		5 Months Ended		0 Months Ended	1 Months Ended
	May 31, 2014	May 31, 2013	Nov. 30, 2013 Agricultural Products [Member] Consigned Inventory [Member] Agro Trend [Member]	Jun. 25, 2013 Agricultural Products [Member] Consigned Inventory [Member] Agro Trend [Member]	Jun. 25, 2013 Agro Trend [Member]	Sep. 30, 2013 Ohio Metal Working Products Company [Member]	May 29, 2014 US Bank [Member]	May 10, 2012 US Bank [Member]
Note 10 - Acquisitions (Details) [Line Items]
Payments to Acquire Businesses, Gross					$ 311,000	$ 3,172,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment					88,000	868,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory					223,000	1,142,000
Other Inventory, Materials, Supplies and Merchandise under Consignment, Gross				600,000
Increase (Decrease) in Inventories	945,760	492,088	(364,000)
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Land And Building						1,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable						38,000
Debt Instrument, Face Amount							$ 1,000,000	$ 880,000