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Note 17 - Income Taxes (Details) - Income Tax Expense (Recovery) Incurred by Jurisdictions - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 31, 2016 | Jan. 31, 2015 | Jan. 31, 2014
Current income tax expense |  |  |
Current income tax expense | $ 1,443 | $ 2,784 | $ 1,768
Deferred income tax expense (recovery) |  |  |
Deferred income tax expense (recovery) | 5,765 | 3,978 | 2,353
| 7,208 | 6,762 | 4,121
Canada [Member] |  |  |
Current income tax expense |  |  |
Current income tax expense | 94 | 568 | 61
Deferred income tax expense (recovery) |  |  |
Deferred income tax expense (recovery) | 3,493 | 3,741 | 3,827
United States [Member] |  |  |
Current income tax expense |  |  |
Current income tax expense | 70 | 1,060 | 605
Deferred income tax expense (recovery) |  |  |
Deferred income tax expense (recovery) | 800 | 2,144 | 2,804
Other Countries [Member] |  |  |
Current income tax expense |  |  |
Current income tax expense | 1,279 | 1,156 | 1,102
Deferred income tax expense (recovery) |  |  |
Deferred income tax expense (recovery) | $ 1,472 | $ (1,907) | $ (4,278)

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