CONTINGENCIES (Details) (USD $)	6 Months Ended
	Jul. 31, 2012	Mar. 22, 2012
Asbestos Related Lawsuits [Abstract]
Payments made by insurers to settle cases	$ 695,000
Average cost per settled claim, excluding legal fees	$ 25,000
Number of pending cases	143	130
Number of new cases filed	25
Number of cases dismissed	15
Number of cases settled	2