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Note 14 - Share Capital (Tables) | 12 Months Ended
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Jan. 31, 2016
Share Capital [Abstract] |
Schedule of Common Stock Outstanding Roll Forward [Table Text Block] |
(thousands of shares) |  | January 31, 2016 |  |  | January 31, 2015 |  |  | January 31, 2014 |
Balance, beginning of year |  |  | 75,480 |  |  |  | 63,661 |  |  |  | 62,654 |
Shares issued: |  |  |  |  |  |  |  |  |  |  |  |
Stock options and share units exercised |  |  | 281 |  |  |  | 478 |  |  |  | 1,007 |
Issuance of common shares |  |  | - |  |  |  | 10,925 |  |  |  | - |
Acquisitions (Note 3) |  |  | - |  |  |  | 416 |  |  |  | - |
Balance, end of year |  |  | 75,761 |  |  |  | 75,480 |  |  |  | 63,661 |

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- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
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