Note 13 - Acquisitions (Details) (USD $)	12 Months Ended		5 Months Ended		0 Months Ended			0 Months Ended		12 Months Ended	0 Months Ended	1 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2013 Agricultural Products [Member] Consigned Inventory [Member] Agro Trend [Member]	Jun. 25, 2013 Agricultural Products [Member] Consigned Inventory [Member] Agro Trend [Member]	May 10, 2012 Current and Future Cash Payments [Member] Universal Harvester [Member]	May 11, 2012 Real Estate Taxes Paid [Member] Universal Harvester [Member]	May 10, 2012 Common Stock [Member] Universal Harvester [Member]	May 10, 2012 Universal Harvester [Member]	May 11, 2012 Universal Harvester [Member]	May 31, 2013 Universal Harvester [Member]	Jun. 25, 2013 Agro Trend [Member]	Sep. 30, 2013 Ohio Metal Working Products Company [Member]
Note 13 - Acquisitions (Details) [Line Items]
Business Combination, Consideration Transferred								$ 3,066,000
Payments to Acquire Businesses, Gross					(3,030,450)	27,427			3,003,565		311,000	3,172,000
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned							35,550
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)										5,000
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	(769,641)	130,617	(159,000)
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