Inventories (Details) - USD ($) $ in Thousands	Oct. 31, 2015	Jan. 31, 2015
Inventory [Line Items]
Raw materials	$ 15,760	$ 14,379
Work-in-process	847	1,670
Finished goods	26,894	21,043
Inventory, Net, Total	$ 43,501	$ 37,092	[1]

[1] Restated for discontinued operations.