Income Taxes, Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 29, 2022	Jan. 30, 2021
DEFERRED TAX ASSETS [Abstract]
Accrued Expenses	$ 159	$ 71
Inventory	219	215
Retirement and compensation related accruals	3,769	3,981
Fixed assets	0	218
Federal and state net operating loss and credit carry forwards	91,468	90,206
Losses on investment	853	853
Others	107	107
Gross deferred tax assets before valuation allowance	96,575	95,651
Less: valuation allowance	(96,331)	(95,022)
Total deferred tax assets	244	629
DEFERRED TAX LIABILITIES [Abstract]
Fixed assets	(244)	0
Intangibles	0	(629)
Total deferred tax liabilities	(244)	(629)
NET DEFERRED TAX ASSET	$ 0	0
Federal [Member]
Operating Loss Carryforwards Components [Abstract]
Net operating loss carryforwards		352,700
Operating loss carryforward expiration year	2040
Deferred tax assets, tax credit carryforwards	$ 500
Tax credit carryforward, expiration year	2026
State [Member]
Operating Loss Carryforwards Components [Abstract]
Net operating loss carryforwards		$ 214,400
Operating loss carryforward expiration year	2040
Tax credit carryforward, amount	$ 200