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Note 9 - Intangible Assets (Tables) | 12 Months Ended
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Jan. 31, 2018
Notes Tables |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  |  | January 31, 2018 |  |  |  | January 31, 2017 |
Cost |  |  |  |  |  |  |  |
Customer agreements and relationships |  |  | 162,772 |  |  |  | 125,057 |
Existing technology |  |  | 174,506 |  |  |  | 137,587 |
Trade names |  |  | 7,532 |  |  |  | 6,314 |
Non-compete covenants |  |  | 5,980 |  |  |  | 2,916 |
|  |  | 350,790 |  |  |  | 271,874 |
Accumulated amortization |  |  |  |  |  |  |  |
Customer agreements and relationships |  |  | 73,621 |  |  |  | 56,509 |
Existing technology |  |  | 92,304 |  |  |  | 64,879 |
Trade names |  |  | 4,221 |  |  |  | 3,335 |
Non-compete covenants |  |  | 2,643 |  |  |  | 1,706 |
|  |  | 172,789 |  |  |  | 126,429 |
Net |  |  | 178,001 |  |  |  | 145,445 |

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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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