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Debt (Details 1)
$ in Thousands
Oct. 31, 2017
USD ($)
Debt Instrument [Line Items]  
Total $ 2,263
1 Year or less 912
2 Years 158
3 Years 1,193
4 Years 0
5 Years 0
After 5 Years 0
Revolving credit facility [Member]  
Debt Instrument [Line Items]  
Total 0
1 Year or less 0
2 Years 0
3 Years 0
4 Years 0
5 Years 0
After 5 Years 0
Borrowings In USA [Member]  
Debt Instrument [Line Items]  
Total 1,509
1 Year or less 158
2 Years 158
3 Years 1,193
4 Years 0
5 Years 0
After 5 Years 0
Borrowings in Canada [Member]  
Debt Instrument [Line Items]  
Total 0
1 Year or less 0
2 Years 0
3 Years 0
4 Years 0
5 Years 0
After 5 Years 0
Borrowings in UK [Member]  
Debt Instrument [Line Items]  
Total 694
1 Year or less 694
2 Years 0
3 Years 0
4 Years 0
5 Years 0
After 5 Years 0
Borrowings in Argentina [Member]  
Debt Instrument [Line Items]  
Total 60
1 Year or less 60
2 Years 0
3 Years 0
4 Years 0
5 Years 0
After 5 Years $ 0