Property and Equipment (Details) - Schedule of Property Plant and Equipment (USD $) In Thousands, unless otherwise specified	Jul. 31, 2013	Jan. 31, 2013
Schedule of Property Plant and Equipment [Abstract]
Land and improvements	$ 23,754	$ 23,980
Buildings and improvements	37,626	38,056
Machinery, equipment and fixtures	221,618	221,638
Construction in progress	255	39
	283,253	283,713
Less: accumulated depreciation	(68,801)	(60,533)
	$ 214,452	$ 223,180