VAT Tax Issue in Brazil and Prior Period Adjustments (Details)			3 Months Ended
	Apr. 30, 2015 USD ($)	Apr. 30, 2015 BRL	Apr. 30, 2015 VAT Claims, One [Member] USD ($)	Apr. 30, 2015 VAT Claims, One [Member] BRL	Apr. 30, 2015 VAT Claims, Two [Member] USD ($)	Apr. 30, 2015 VAT Claims, Two [Member] BRL	Apr. 30, 2015 VAT Claims, Three [Member] USD ($)	Apr. 30, 2015 VAT Claims, Three [Member] BRL	Apr. 30, 2015 VAT Claims, Four [Member] USD ($)	Apr. 30, 2015 VAT Claims, Four [Member] BRL
Vat Tax Issue In Brazil [Line Items]
VAT Claims, Principal		7,491,261		305,897		573,457		6,209,836		402,071
VAT Claims, Interest And Penalty		11,054,740		534,038		1,337,933		8,356,422		826,346
VAT Claims, Total	$ 6,193,216	18,546,000	$ 280,577	839,935	$ 636,492	1,911,390	$ 4,865,800	14,566,258	$ 410,347	1,228,417
VAT Claims, Loss Possibility			Remote	Remote	Remote	Remote	Probable	Probable	Remote	Remote
VAT Claims, Strategy			To await Judicial Process and negotiate judicial deposit	To await Judicial Process and negotiate judicial deposit	To await Judicial Process and negotiate judicial deposit	To await Judicial Process and negotiate judicial deposit	To await Judicial Process and negotiate judicial deposit	To await Judicial Process and negotiate judicial deposit	To await Judicial Process and negotiate judicial deposit	To await Judicial Process and negotiate judicial deposit
VAT Claims, Collateral			New Land	New Land	Plant	Plant	-	-	New Land	New Land