Principles of Consolidation and Summary of Significant Accounting Policies concentration of credit risks (Details) - customers |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Apr. 30, 2016 |
Apr. 30, 2015 |
Apr. 30, 2016 |
Apr. 30, 2015 |
Oct. 31, 2015 |
|
| Entity Wide Revenue, Major Customer, Count | 0 | 0 | 0 | 0 | |
| Credit Concentration Risk [Member] | |||||
| Concentration Risk, Major Customer, Count | 0 | 0 | 0 | ||