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Income Taxes (Tables)
12 Months Ended
Oct. 31, 2018
Income Tax Disclosure [Abstract]  
Income Tax Benefit
    2018   2017
Current income tax (benefit) provision:                
Federal   $ 112,510     $ 41,245  
State     15,217       3,926  
      127,727       45,171  
Deferred income tax (benefit) provision:                
Federal     (21,270 )     (1,491 )
State     (2,877 )     (138 )
      (24,147 )     (1,629 )
Income tax (benefit) provision   $ 103,580     $ 43,542  
Income tax provide by federal statutory rate
    2018   2017
Expected federal income tax expense at Statutory rate   $ 96,582     $ 39,747  
State income tax expense, net of federa income tax effect     9,981       2,441  
Non-deductible items and perm. differences     9,511       1,354  
DPAD adjustments/R&D credit     (12,494 )     —    
Income tax provision   $ 103,580     $ 43,542  
Net Deferred Income Taxes
    2018   2017
Deferred tax assets                
Inventory reserve   $ 69,081     $ 84,646  
Other reserves and allowances     65,538       54,516  
Capitalized inventory costs     49,777       76,988  
Total deferred tax assets     184,396       216,150  
Deferred tax liabilities                
Property, plant and equipment     122,898       178,802  
Net deferred income taxes   $ 61,494     $ 37,348