Canadian Customs Duty Examination (Details Textuals) - Canadian Border Service Agency $ in Millions	9 Months Ended
Oct. 31, 2017 USD ($)
Minimum
Canadian Customs Duty Examination [Line Items]
Estimated amount of additional duties payable to CBSA	$ 9
Maximum
Canadian Customs Duty Examination [Line Items]
Estimated amount of additional duties payable to CBSA	$ 15

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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