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Income Taxes - Narrative (Details) - USD ($)
11 Months Ended 12 Months Ended
Dec. 31, 2017
Feb. 01, 2020
Feb. 02, 2019
Feb. 03, 2018
Jul. 10, 2015
Operating Loss Carryforwards [Line Items]          
Federal net operating loss carryforwards   $ 393,000,000      
Non-cash tax charge relating to changes in the long-term deferred tax liability related to the tax amortization of FCC license asset       $ 643,000  
Income tax benefit attributable to reversal of long-term deferred tax liability relating to sale of FCC license asset       $ 4,147,000  
Income Tax Uncertainties [Abstract]          
Unrecognized tax benefits for uncertain tax positions   0 $ 0    
Interest of penalties charged or accrued in relation to unrecognized tax benefits   $ 0      
Tax Cuts and Jobs Act [Abstract]          
U.S. federal corporate income tax statutory rate 35.00% 21.00% 21.00% 33.80%  
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    
one one-thousandth of a share of Preferred Stock unit price         $ 90.00
Related party, ownership interest in Company, percentage         4.99%
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