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Note 9 - Intangible Assets | 12 Months Ended
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Jan. 31, 2018
Notes to Financial Statements |
Intangible Assets Disclosure [Text Block] | Note 9 - Intangible Assets
|  |  | 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 |
Intangible assets related to our acquisitions are recorded at their fair value at the acquisition date. The change in intangible assets during the year ended January 31, 2018 is primarily due to the acquisitions of ShipRush, PCSTrac and MacroPoint, partially offset by amortization. The balance of the change in intangible assets is due to foreign currency translation. Intangible assets with a finite life are amortized into income over their useful lives. Amortization expense for existing intangible assets is expected to be $178.0 million over the following periods: $34.9 million for 2019, $33.5 million for 2020, $30.0 million for 2021, $25.7 million for 2022, $18.2 million for 2023 and $35.7 million thereafter. Expected future amortization expense is subject to fluctuations in foreign exchange rates and assumes no future adjustments to acquired intangible assets.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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