Income Taxes, Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 28, 2023	Jan. 29, 2022
DEFERRED TAX ASSETS [Abstract]
Accrued Expenses	$ 191	$ 159
Inventory	252	219
Retirement and compensation related accruals	3,622	3,769
Federal and state net operating loss and credit carry forwards	96,589	91,468
Losses on investment	853	853
Others	107	107
Gross deferred tax assets before valuation allowance	101,614	96,575
Less: valuation allowance	(101,403)	(96,331)
Total deferred tax assets	211	244
DEFERRED TAX LIABILITIES [Abstract]
Fixed assets	(211)	(244)
Total deferred tax liabilities	(211)	(244)
NET DEFERRED TAX ASSET	0	$ 0
Federal [Member]
Operating Loss Carryforwards Components [Abstract]
Net operating loss carryforwards	$ 369,100
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	$ 224,400
Operating loss carryforward expiration year	2040
Tax credit carryforward, amount	$ 200