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Note 9 - Intangible Assets (Tables) | 12 Months Ended
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Jan. 31, 2017
Notes Tables |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  |  | January 31, 2017 |  |  |  | January 31, 2016 |
Cost |  |  |  |  |  |  |  |
Customer agreements and relationships |  |  | 125,057 |  |  |  | 107,743 |
Existing technology |  |  | 137,587 |  |  |  | 117,586 |
Trade names |  |  | 6,314 |  |  |  | 4,515 |
Non-compete covenants |  |  | 2,916 |  |  |  | 2,559 |
|  |  | 271,874 |  |  |  | 232,403 |
Accumulated amortization |  |  |  |  |  |  |  |
Customer agreements and relationships |  |  | 56,509 |  |  |  | 45,853 |
Existing technology |  |  | 64,879 |  |  |  | 48,295 |
Trade names |  |  | 3,335 |  |  |  | 3,128 |
Non-compete covenants |  |  | 1,706 |  |  |  | 1,565 |
|  |  | 126,429 |  |  |  | 98,841 |
Net |  |  | 145,445 |  |  |  | 133,562 |

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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=66006027&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=66006027&loc=d3e16265-109275 + Details
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