Inventories (Detail Textuals) - USD ($) $ in Thousands	Jul. 31, 2018	Jan. 31, 2018	Jul. 31, 2017
Inventory Disclosure [Abstract]
Anticipated inventory return asset	$ 36,200	$ 39,400	$ 20,800

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

No definition available.