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Equity Matters Stock Based Compensation Cash Incentive Awards (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 14, 2016
employee
Mar. 10, 2016
employee
Jul. 31, 2017
USD ($)
Jul. 31, 2016
USD ($)
Jul. 31, 2017
USD ($)
Jul. 31, 2016
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Compensation expense recognized     $ 538 $ 333 $ 1,372 $ 784
Cash Incentive Awards [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of award recipients | employee 70 12        
Compensation expense recognized     203   485  
Liability     $ 485   $ 485  
Minimum [Member] | Cash Incentive Awards [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Performance range         0.00%  
Maximum [Member] | Cash Incentive Awards [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Performance range         200.00%