VAT TAX ISSUE IN BRAZIL (Details 2) In Millions, unless otherwise specified	Jan. 31, 2013 USD ($)		Jan. 31, 2013 BRL
Noncurrent assets ,VAT taxes eligible for future credit	$ 1.9	[1]	3.4
Long-term liabilities , Taxes payable	$ 3.1	[1]	6.2

[1] At exchange rate prevailing in 2010 when recorded.