Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Income Taxes (Details Textual)

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Note 12 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 5 Months Ended 6 Months Ended
Dec. 05, 2018
Apr. 30, 2019
Apr. 30, 2018
Apr. 30, 2019
Apr. 30, 2018
Oct. 31, 2018
Income Tax Expense (Benefit), Total $ (4,192) $ 1,572 $ 1,210 $ (1,193) $ (12,334)  
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total $ (26,767) (8,073) $ 5,821 $ (14,468) 9,834  
Effective Income Tax Rate Reconciliation, Percent, Total 15.70%   20.80% 8.30%    
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability         (14,400)  
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount         500  
Tax Cuts and Jobs Act, Decrease in Deferred Tax Liability due to Transition Tax         $ 700  
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Transaction Related Costs, Amount $ 1,400          
Effective Income Tax Rate Reconciliation, Global Intangible Low Tax Income, Amount       $ 700    
Deferred Tax Assets, Net, Total   75,900   75,900   $ 39,000
Deferred Tax Assets, Valuation Allowance, Total   100   100   100
Liability for Uncertainty in Income Taxes, Current   $ 0   $ 0   $ 0