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Note 10 - Acquisitions (Details) (USD $) | 6 Months Ended | 5 Months Ended |  | 0 Months Ended | 1 Months Ended |  |
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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

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- Definition Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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