Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016	Feb. 03, 2018	Jan. 28, 2017	Jul. 10, 2015
Operating Loss Carryforwards [Line Items]
Federal net operating loss carryforwards						$ 326,000,000
State net operating loss carryforwards						$ 262,000,000
Increase (Decrease) in Accrued Taxes Payable [Abstract]
Non-cash tax charge relating to changes in long-term deferred tax liability	$ 197,000	$ 198,000	$ 394,000	$ 395,000
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
Related party, ownership interest in Company, percentage							4.99%
Scenario, Forecast [Member]
Increase (Decrease) in Accrued Taxes Payable [Abstract]
Deferred Income Tax Expense (Benefit), Remainder of Year					$ 394,000
2023 - Earliest Tax Year [Member]
Operating Loss Carryforwards [Line Items]
Federal NOLs, expiration date						Feb. 03, 2024
2036 - Latest Tax Year [Member]
Operating Loss Carryforwards [Line Items]
Federal NOLs, expiration date						Jan. 31, 2037