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Income Taxes (Details) - USD ($)
3 Months Ended 9 Months Ended 11 Months Ended 12 Months Ended
Nov. 03, 2018
Oct. 28, 2017
Nov. 03, 2018
Oct. 28, 2017
Dec. 31, 2017
Feb. 03, 2018
Jul. 10, 2015
Operating Loss Carryforwards [Line Items]              
Federal net operating loss carryforwards           $ 321,000,000  
State net operating loss carryforwards           $ 260,000,000  
Increase (Decrease) in Accrued Taxes Payable [Abstract]              
Income tax non-cash benefit relating to changes in the long-term deferred tax liability related to amortization of FCC license asset $ 0 $ 197,000   $ 591,000      
Income tax non-cash benefit relating to partial reversal of the long-term deferred tax liability relating to FCC license asset   833,000   $ 833,000      
Proceeds from Channel Sharing Agreement, Amount Payable Upon Grant of a Required Construction Permit by the FCC   $ 2,500,000          
Tax Cuts and Jobs Act [Abstract]              
Taxes at federal statutory rates     21.00%   35.00%    
NOL deduction limitation on taxable income, Percent     80.00%        
Shareholder Rights Plan [Abstract]              
Preferred Stock, Par or Stated Value Per Share $ 0.01   $ 0.01     $ 0.01  
one one-thousandth of a share of Preferred Stock unit price             $ 9.00
2023 - Earliest Tax Year [Member]              
Operating Loss Carryforwards [Line Items]              
Federal NOLs, expiration date           Feb. 03, 2024  
2037 - Latest Tax Year [Member]              
Operating Loss Carryforwards [Line Items]              
Federal NOLs, expiration date           Jan. 30, 2038