VAT TAX ISSUE IN BRAZIL (Details 1) In Millions, unless otherwise specified	12 Months Ended
	Jan. 31, 2013 USD ($)	Jan. 31, 2013 BRL	Jan. 31, 2013 Claim 2004-2006 Not Paid Under Amnesty Program [Member] USD ($)	Jan. 31, 2013 Claim 2004-2006 Not Paid Under Amnesty Program [Member] BRL	Jan. 31, 2013 Claim 2007-2009 By State Of Bahia [Member] USD ($)		Jan. 31, 2013 Claim 2007-2009 By State Of Bahia [Member] BRL
Taxes		7.5		1.3			6.2	[1]
Fines and penalties		8.0		1.9			6.1	[1]
Maximum judicial deposit	$ 7.8	15.5	$ 1.6	3.2	$ 6.2	[1]	12.3	[1]

[1] Our attorney informs us that based on the slow progress so far in the administrative proceedings for the 2007-2009 claim, they believe it is now more likely than not that the next amnesty will arrive prior to the need to pay the R$12.3 judicial deposit.