Property and Equipment (Details) - Schedule of Property Plant and Equipment (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014	Jan. 31, 2014
Schedule of Property Plant and Equipment [Abstract]
Land and improvements	$ 21,606	$ 21,543
Buildings and improvements	28,733	28,297
Machinery, equipment and fixtures	223,752	223,544
Construction in progress	197	693
	274,288	274,077
Less: accumulated depreciation	(75,870)	(71,819)
	$ 198,418	$ 202,258