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Note 12 - Segment Information | 9 Months Ended
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Aug. 31, 2013
Segment Reporting [Abstract] |
Segment Reporting Disclosure [Text Block] | 12) Segment Information For the three and nine months ended August 31, 2013, there were three reportable segments: agricultural products, pressurized vessels and modular buildings. The agricultural products segment fabricates and sells farming products as well as related equipment and replacement parts for these products in the United States and worldwide. The pressurized vessels segment produces pressurized tanks. The modular buildings segment manufactures and installs modular buildings for animal containment and various laboratory uses. The accounting policies applied to determine the segment information are the same as those described in the summary of significant accounting policies. Management evaluates the performance of each segment based on profit or loss from operations before income taxes, exclusive of nonrecurring gains and losses. Approximate financial information with respect to the reportable segments is as follows. Three Months Ended August 31, 2013
|  | Agricultural Products |  |  | Pressurized Vessels |  |  | Modular Buildings |  |  | Consolidated |
Net Sales from external customers |  | $ | 8,005,000 |  |  | $ | 635,000 |  |  | $ | 710,000 |  |  | $ | 9,350,000 |
Income (loss) from operations |  |  | 145,000 |  |  |  | 22,000 |  |  |  | (113,000 | ) |  |  | 54,000 |
Income (loss) before taxes |  |  | 108,000 |  |  |  | 14,000 |  |  |  | (73,000 | ) |  |  | 49,000 |
Total Assets |  |  | 24,563,000 |  |  |  | 2,815,000 |  |  |  | 3,006,000 |  |  |  | 30,384,000 |
Capital expenditures |  |  | 540,000 |  |  |  | 10,000 |  |  |  | 13,000 |  |  |  | 563,000 |
Depreciation & Amortization |  |  | 113,000 |  |  |  | 26,000 |  |  |  | 49,000 |  |  |  | 188,000 |
Three Months Ended August 31, 2012
|  | Agricultural Products |  |  | Pressurized Vessels |  |  | Modular Buildings |  |  | Consolidated |
Net Sales from external customers |  | $ | 8,176,000 |  |  | $ | 566,000 |  |  | $ | 2,792,000 |  |  | $ | 11,534,000 |
Income (loss) from operations |  |  | 1,027,000 |  |  |  | 10,000 |  |  |  | 570,000 |  |  |  | 1,607,000 |
Income (loss) before taxes |  |  | 988,000 |  |  |  | (47,000 | ) |  |  | 554,000 |  |  |  | 1,495,000 |
Total Assets |  |  | 24,082,000 |  |  |  | 2,722,000 |  |  |  | 6,090,000 |  |  |  | 32,894,000 |
Capital expenditures |  |  | 289,000 |  |  |  | 0 |  |  |  | 5,000 |  |  |  | 294,000 |
Depreciation & Amortization |  |  | 137,000 |  |  |  | 29,000 |  |  |  | 52,000 |  |  |  | 218,000 |
Nine Months Ended August 31, 2013
|  | Agricultural Products |  |  | Pressurized Vessels |  |  | Modular Buildings |  |  | Consolidated |
Net Sales from external customers |  | $ | 22,727,000 |  |  | $ | 1,671,000 |  |  | $ | 2,618,000 |  |  | $ | 27,016,000 |
Income (loss) from operations |  |  | 1,274,000 |  |  |  | (114,000 | ) |  |  | 406,000 |  |  |  | 1,566,000 |
Income (loss) before taxes |  |  | 1,800,000 |  |  |  | (200,000 | ) |  |  | 420,000 |  |  |  | 2,020,000 |
Total Assets |  |  | 24,563,000 |  |  |  | 2,815,000 |  |  |  | 3,006,000 |  |  |  | 30,384,000 |
Capital expenditures |  |  | 737,000 |  |  |  | 18,000 |  |  |  | 18,000 |  |  |  | 773,000 |
Depreciation & Amortization |  |  | 329,000 |  |  |  | 79,000 |  |  |  | 150,000 |  |  |  | 558,000 |
Nine Months Ended August 31, 2012
|  | Agricultural Products |  |  | Pressurized Vessels |  |  | Modular Buildings |  |  | Consolidated |
Net Sales from external customers |  | $ | 20,170,000 |  |  | $ | 1,512,000 |  |  | $ | 7,849,000 |  |  | $ | 29,531,000 |
Income (loss) from operations |  |  | 2,202,000 |  |  |  | (108,000 | ) |  |  | 1,369,000 |  |  |  | 3,463,000 |
Income (loss) before taxes |  |  | 2,149,000 |  |  |  | (278,000 | ) |  |  | 1,318,000 |  |  |  | 3,189,000 |
Total Assets |  |  | 24,082,000 |  |  |  | 2,722,000 |  |  |  | 6,090,000 |  |  |  | 32,894,000 |
Capital expenditures |  |  | 1,929,000 |  |  |  | 5,000 |  |  |  | 27,000 |  |  |  | 1,961,000 |
Depreciation & Amortization |  |  | 390,000 |  |  |  | 86,000 |  |  |  | 158,000 |  |  |  | 634,000 |

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599 + Details
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