Income Taxes - Reconciliation of Income Tax Expense at the Statutory Federal Income Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Income Tax Disclosure [Abstract]
Tax at federal statutory rate	$ (11,043)	$ 1,220	$ 3,308
State income taxes, net of federal benefit	(1,456)	651	559
Tax credits	(192)	(437)	(174)
Enactment of tax legislation	0	0	419
Unrecognized tax positions	0	0	(185)
Stock based compensation programs	1,162	545	575
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	12,035	0	0
Other	172	52	18
Income tax expense	$ 678	$ 2,031	$ 4,520

Effective Income Tax Rate Reconciliation, Unrecognized Tax Positions, Amount

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Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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