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Note 18 - Income Taxes - Income Tax Expense (Recovery) Incurred by Jurisdictions (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Jan. 31, 2019
Current income tax expense $ 3,746 $ 5,295 $ 6,042
Deferred tax expense 14,523 5,743 2,191
Income tax expense 18,269 11,038 8,233
CANADA      
Current income tax expense 1,875 1,020 3,037
Deferred tax expense 7,047 5,008 2,531
UNITED STATES      
Current income tax expense (3,050) 3,496 1,298
Deferred tax expense 9,537 1,390 67
Other Countries [Member]      
Current income tax expense 4,921 779 1,707
Deferred tax expense $ (2,061) $ (655) $ (407)