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Note 14 - Share Capital (Tables) | 12 Months Ended
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Jan. 31, 2018
Notes Tables |
Schedule of Common Stock Outstanding Roll Forward [Table Text Block] |
(thousands of shares) |  |  | January 31, 2018 |  |  |  | January 31, 2017 |  |  |  | January 31, 2016 |
Balance, beginning of year |  |  | 75,875 |  |  |  | 75,761 |  |  |  | 75,480 |
Shares issued: |  |  |  |  |  |  |  |  |  |  |  |
Stock options and share units exercised |  |  | 141 |  |  |  | 114 |  |  |  | 281 |
Acquisitions (Note 3) |  |  | 757 |  |  |  | - |  |  |  | - |
Balance, end of year |  |  | 76,773 |  |  |  | 75,875 |  |  |  | 75,761 |

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