Inventories (Detail Textuals) - USD ($) $ in Millions	Oct. 31, 2018	Jan. 31, 2018	Oct. 31, 2017
Inventory Disclosure [Abstract]
Anticipated inventory return asset	$ 37.5	$ 39.4	$ 40.8

Represents the inventory return asset, which consists of the amount of goods that are anticipated to be returned by customers.

No definition available.