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EQUITY INCENTIVE PLAN - Stock option activity (Details) - Employee Stock Option [Member]
 9 Months Ended
Jul. 31, 2019
$ / shares
shares
Stock Options  
Outstanding at October 31, 2018 | shares 37,045
Options granted | shares 0
Options exercised | shares 0
Options cancelled | shares 0
Outstanding at July 31, 2019 | shares 37,045
Weighted Average Exercise Price  
Outstanding at October 31, 2018 | $ / shares $ 21.69
Options granted | $ / shares 0.00
Options exercised | $ / shares 0.00
Options cancelled | $ / shares 0.00
Outstanding at July 31, 2019 | $ / shares $ 21.69