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Note 16 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended
Jan. 31, 2023
Jan. 31, 2022
Income Tax Expense (Benefit), Total $ (669) $ 10,593
Effective Income Tax Rate Reconciliation, Tax Credit, Amount, Total 6,200  
Deferred Tax Assets, Net, Total 347,400  
Contract Backlog 1,200,000  
Deferred Tax Assets, Valuation Allowance 95,700  
Domestic Tax Authority [Member]    
Income Tax Expense (Benefit), Total (2,880) 8,050
Domestic Tax Authority [Member] | Between 2029 and 2038 [Member]    
Operating Loss Carryforwards 909,500  
Domestic Tax Authority [Member] | Indefinite Tax Period [Member]    
Operating Loss Carryforwards 21,100  
State and Local Jurisdiction [Member]    
Income Tax Expense (Benefit), Total 2,211 $ 2,543
Operating Loss Carryforwards 2,300,000  
State and Local Jurisdiction [Member] | Indefinite Tax Period [Member]    
Operating Loss Carryforwards 51,500  
State and Local Jurisdiction [Member] | Between 2023 and 2027 [Member]    
Operating Loss Carryforwards 411,400  
State and Local Jurisdiction [Member] | Between 2028 and 2032 [Member]    
Operating Loss Carryforwards 1,400,000  
State and Local Jurisdiction [Member] | Between 2033 and 2037 [Member]    
Operating Loss Carryforwards 369,700  
State and Local Jurisdiction [Member] | Between 2038 and 2042 [Member]    
Operating Loss Carryforwards $ 73,700