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v3.8.0.1

Other Events (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Dec. 08, 2017 | Jul. 31, 2017 | Apr. 30, 2018 | Apr. 30, 2017 | Aug. 31, 2017
Dividend payment | $ 0.95 |  |  |  |
Dividend aggregate amount to shareholders |  |  | $ 16,657 | $ 15,696 |
Estimate of loss |  |  |  |  | $ 400
Selling, general and administrative [Member] |  |  |  |  |
Settlement expenses |  | $ 400 |  |  |

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