Property and Equipment (Details) - Schedule of Property Plant and Equipment (USD $) In Thousands, unless otherwise specified	Jul. 31, 2014	Jan. 31, 2014
Schedule of Property Plant and Equipment [Abstract]
Land and improvements	$ 21,424	$ 21,543
Buildings and improvements	28,304	28,297
Machinery, equipment and fixtures	224,124	223,544
Construction in progress	3,093	693
	276,945	274,077
Less: accumulated depreciation	(79,710)	(71,819)
	$ 197,235	$ 202,258