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Note 14 - Share Capital (Details) - Common Shares Outstanding - shares |  | 12 Months Ended
--- | --- | ---
Jul. 02, 2014 | Jan. 31, 2016 | Jan. 31, 2015 | Jan. 31, 2014
Note 14 - Share Capital (Details) - Common Shares Outstanding [Line Items] |  |  |  |
Balance |  | 75,480,492 | 63,661,000 | 62,654,000
Shares issued: |  |  |  |
Stock options and share units exercised |  | 281,000 | 478,000 | 1,007,000
Acquisitions (Note 3) |  |  | 416,000 |
Balance |  | 75,761,184 | 75,480,492 | 63,661,000
Public Offering [Member] |  |  |  |
Shares issued: |  |  |  |
Issuance of common shares | 10,925,000 |  | 10,925,000 |

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