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NET INCOME PER SHARE (Details) - shares
3 Months Ended 6 Months Ended
Apr. 30, 2019
Apr. 30, 2018
Apr. 30, 2019
Apr. 30, 2018
Stock Options [Member]        
Antidilutive Securities Excluded from EPS Computation        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Number 0 0 0 0
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 0 15,000 1,000 6,000