Income Taxes - Schedule of reconciliation of income tax expense (benefit) at the statutory federal income tax rate (Details) - USD ($)	3 Months Ended	6 Months Ended
Jul. 30, 2022	Jul. 31, 2021	Jul. 30, 2022	Jul. 31, 2021
Income Tax Disclosure [Abstract]
Tax at federal statutory rate	$ (4,637,000)	$ 47,000	$ (6,985,000)	$ 477,000
State income taxes, net of federal benefit	(12,000)	1,000	(466,000)	66,000
Tax credits	(181,000)	(2,000)	(126,000)	(6,000)
Executive compensation	205,000	1,000	116,000	15,000
Stock based compensation programs	117,000	(415,000)	(553,000)	(517,000)
Valuation allowance	8,092,000	(36,000)	8,307,000	(110,000)
Other	38,000	0	5,000	1,000
Income Tax Expense (Benefit), Total	$ 3,622,000	$ (404,000)	$ 298,000	$ (74,000)

Income Tax Reconciliation Executive Compensation

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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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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from 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 tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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