Long-Term Debt (Details 1) $ in Thousands	Oct. 31, 2018 USD ($)
1 Year or less	$ 337
2 Years	1,200
3 Years	0
4 Years	0
5 Years	0
After 5 Years	0
Total	1,537
USA
1 Year or less	158
2 Years	1,200
3 Years	0
4 Years	0
5 Years	0
After 5 Years	0
Total	1,358
UK
1 Year or less	147
2 Years	0
3 Years	0
4 Years	0
5 Years	0
After 5 Years	0
Total	147
Argentina
1 Year or less	32
2 Years	0
3 Years	0
4 Years	0
5 Years	0
After 5 Years	0
Total	$ 32