Note 20 - Transactions With Related Parties (Details Textual) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2018 |
Apr. 30, 2017 |
Apr. 30, 2018 |
Apr. 30, 2017 |
|
| Tavit Najarian [Member] | ||||
| Related Party Transaction, Amounts of Transaction | $ 0.2 | $ 0.2 | $ 0.3 | $ 0.4 |