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Income Taxes (Details) - USD ($)
3 Months Ended 9 Months Ended
Jun. 24, 2018
Jun. 25, 2017
Sep. 25, 2016
Jun. 24, 2018
Jun. 25, 2017
Sep. 24, 2017
Deferred Income Tax Expense (Benefit)       $ (17,834,000) $ 8,056,000  
Income tax expense (benefit) $ 1,972,000 $ 1,843,000   (16,791,000) 9,253,000  
Income (Loss) from Continuing Operations before Income Taxes, Domestic $ 6,722,000 $ 8,130,000   $ 25,820,000 $ 34,358,000  
Effective Income Tax Rate Reconciliation, Percent 29.30% 22.70%   (65.00%) 26.90%  
Operating Loss Carryforwards           $ 57,856,000
Federal Net Operating Loss     $ 17,850,000      
TaxLawChange [Member]            
Income tax expense (benefit)       $ (24,872,000)