NET INCOME PER SHARE (Details) - shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2017 |
Apr. 30, 2016 |
Apr. 30, 2017 |
Apr. 30, 2016 |
|
| Antidilutive Securities Excluded from EPS Computation | ||||
| Document Period End Date | Apr. 30, 2017 | |||
| Stock Options [Member] | ||||
| Antidilutive Securities Excluded from EPS Computation | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Number | 0 | 1,700,000 | 0 | 1,700,000 |
| Stock Options, ESPP, LTPP and restricted stock combined exercise price, unamortized fair value, excess tax benefits or shortfalls greater than average market price [Member] [Member] | ||||
| Antidilutive Securities Excluded from EPS Computation | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Number | 10,000 | 30,000 | 42,000 | 23,100 |