Income Taxes - Deferred Tax Benefit (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Components of Deferred Tax Assets and Liabilities [Abstract]
Accruals and reserves not currently deductible for tax purposes	$ 4,039	$ 5,281
Inventory capitalization	1,181	1,339
Differences in depreciation lives and methods	(1,076)	(1,382)
Differences in basis of intangible assets	153	43
Differences in investments and other items	2,140	1,432
Net operating loss carryforwards	96,894	85,138
Valuation allowance	(103,331)	(91,851)
Net deferred tax liability	$ 0	$ 0