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EQUITY INCENTIVE PLAN (Reconciliation of Restricted Stock Activity and Related Information) (Details)
3 Months Ended
Jan. 31, 2019
$ / shares
shares
Number of Shares  
Unvested at October 31, 2018 | shares 168,348
Shares or units granted | shares 90,525
Shares or units vested | shares (34,963)
Shares or units cancelled | shares (12,462)
Shares withheld | shares (13,676)
Unvested at January 31, 2019 | shares 197,772
Weighted Average Grant Date Fair Value  
Unvested at October 31, 2018 | $ / shares $ 37.24
Shares or units granted | $ / shares 37.98
Shares or units vested | $ / shares 29.96
Shares or units cancelled | $ / shares 29.82
Shares withheld | $ / shares 29.67
Unvested at January 31, 2019 | $ / shares $ 39.86