VAT Tax Issue in Brazil (Details) - 3 months ended Apr. 30, 2016	USD ($)		BRL
Vat Tax Issue In Brazil [Line Items]
VAT Claims, Principal	$ 1,937,637		BRL 7,363,022
Value Added Tax Claims Fines And Fees	3,553,456		13,503,131
Value Added Tax Claims Value of Debt	5,491,093		20,866,154
Value Added Tax Claims, Revised Fines and Fees	624,386		2,372,666
Value Added Tax Claims Amount, Not Included in Amnesty Settlement	355,704		1,351,676
Value Added Tax Claims Amount, Amnesty Settlement	2,206,319		8,384,012
Value Added Tax Claims Legal Fees	50,000
VAT Claims, Total	2,256,319
VAT Claims, One [Member]
Vat Tax Issue In Brazil [Line Items]
VAT Claims, Principal	80,499	[1]	305,897
Value Added Tax Claims Fines And Fees	150,596	[1]	572,264
Value Added Tax Claims Value of Debt	231,095	[1]	878,161
Value Added Tax Claims, Revised Fines and Fees	24,435	[1]	92,853
Value Added Tax Claims Amount, Amnesty Settlement	104,934	[1]	398,750
VAT Claims, Two [Member]
Vat Tax Issue In Brazil [Line Items]
VAT Claims, Principal	150,910	[1]	573,457
Value Added Tax Claims Fines And Fees	372,660	[1]	1,416,106
Value Added Tax Claims Value of Debt	523,569	[1]	1,989,563
Value Added Tax Claims, Revised Fines and Fees	62,182	[1]	236,290
Value Added Tax Claims Amount, Not Included in Amnesty Settlement	$ 213,091	[1]	809,747
Value Added Tax Claims Unsettled, Status	The new owner will continue litigation as it is expected to be decided in management favor
VAT Claims, Three [Member]
Vat Tax Issue In Brazil [Line Items]
VAT Claims, Principal	$ 1,600,420	[1]	6,081,597
Value Added Tax Claims Fines And Fees	2,799,519	[1]	10,638,172
Value Added Tax Claims Value of Debt	4,399,939	[1]	16,719,769
Value Added Tax Claims, Revised Fines and Fees	500,964	[1]	1,903,665
Value Added Tax Claims Amount, Amnesty Settlement	2,101,385	[1]	7,985,262
VAT Claims, Four [Member]
Vat Tax Issue In Brazil [Line Items]
VAT Claims, Principal	105,808	[1]	402,071
Value Added Tax Claims Fines And Fees	230,681	[1]	876,589
Value Added Tax Claims Value of Debt	336,489	[1]	1,278,660
Value Added Tax Claims, Revised Fines and Fees	36,805	[1]	139,858
Value Added Tax Claims Amount, Not Included in Amnesty Settlement	$ 142,613	[1]	BRL 541,929
Value Added Tax Claims Unsettled, Status	The new owner will continue litigation as it is expected to be decided in management favor

[1] USD amounts based on exchange rate of as of settlement on December 18, 2015 at 3.80.Values updated as of December 1, 2015, according to the Brazil internal finance department.Numbers may not add due to rounding.