SEGMENTS AND ENTITY WIDE DISCLOSURES (Details 3) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2017 |
Apr. 30, 2016 |
Apr. 30, 2017 |
Apr. 30, 2016 |
|
| ATT | Customer concentration risk | Sales revenue, net | ||||
| Revenue, Major Customer [Line Items] | ||||
| Revenue | $ 107,532 | $ 116,014 | $ 203,969 | $ 242,614 |