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Significant accounting policies Long-lived assets (Tables) | 12 Months Ended
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Jan. 31, 2014
Long lived assets [Abstract] |
Property, Plant and Equipment [Table Text Block] |
| 2013 | 2012
Land, buildings and improvements | $36,535 | $36,572
Machinery and equipment | 50,793 | 49,919
Furniture, office equipment and computer systems | 9,723 | 11,065
Transportation equipment | 206 | 189
Subtotal | 97,257 | 97,745
Less accumulated depreciation and amortization | 54,716 | 52,163
Property, plant and equipment, net | $42,541 | $45,582

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 + Details
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