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Note 9 - Intangible Assets (Tables) | 12 Months Ended
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Jan. 31, 2016
Disclosure Text Block [Abstract] |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  | January 31, 2016 |  |  | January 31, 2015 |
Cost |  |  |  |  |  |  |  |
Customer agreements and relationships |  |  | 107,743 |  |  |  | 97,344 |
Existing technology |  |  | 117,586 |  |  |  | 93,911 |
Trade names |  |  | 4,515 |  |  |  | 4,349 |
Non-compete covenants |  |  | 2,559 |  |  |  | 2,407 |
|  |  | 232,403 |  |  |  | 198,011 |
Accumulated amortization |  |  |  |  |  |  |  |
Customer agreements and relationships |  |  | 45,853 |  |  |  | 37,956 |
Existing technology |  |  | 48,295 |  |  |  | 40,326 |
Trade names |  |  | 3,128 |  |  |  | 3,130 |
Non-compete covenants |  |  | 1,565 |  |  |  | 1,473 |
|  |  | 98,841 |  |  |  | 82,885 |
Net |  |  | 133,562 |  |  |  | 115,126 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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