Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Jan. 31, 2016 |
Jan. 31, 2015 |
|
| Statement of Comprehensive Income [Abstract] | ||
| Amortization of prior service cost and actuarial net loss, tax | $ 7 | $ 10 |