SHARE REPURCHASE PROGRAM (Details)	Jan. 31, 2013
SHARE REPURCHASE PROGRAM
Number of shares authorized to be repurchased	7,500,000

The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

No definition available.

Name:	us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant