Percent of shares available for awards.

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- Definition

Maximum percent of shares under the equity plan that can be granted to a participant without vesting provisions (percent).

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- Definition

Share-based compensation reduction in outstanding reserve for share granted.

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- Definition

Share-based Compensation, Reduction in outstanding reserve for share granted full value award.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of noncash expense for share-based payment arrangement.

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- Definition

Description of terms of share-based payment arrangement. Includes, but is not limited to, type of award or grantee and reason for issuance.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Number of additional shares authorized for issuance under share-based payment arrangement.

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No definition available.

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Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP).

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Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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Stock-Based Compensation - Additional Information (Details) - USD ($)					6 Months Ended
	Aug. 05, 2021	Aug. 12, 2020	Aug. 08, 2019	Aug. 04, 2016	Jul. 30, 2022	Jul. 31, 2021	Jan. 29, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock compensation expense					$ 752,000	$ 643,000
Non Employee Directors
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares of common stock issued					36,690
Fair value of common stock issued					$ 169,482
RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Fully-vested shares					318,657
Time Vested Stock Options and RSU Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized stock compensation cost					$ 2,100,000
Unrecognized stock compensation cost weighted average recognition period					32 months
2016 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserve, shares				5,725,538
Reduction in outstanding reserve for share granted				1.00%
Reduction in outstanding reserve for share granted, full-value award				1.90%
Shares available for grant					3,825,095
Number of additional shares authorized to increase share reserve	4,855,000	1,740,000	2,800,000
Share-based compensation arrangement by share-based payment award, description					In accordance with the terms of the 2016 Plan, any shares outstanding under the previous 2006 Incentive Compensation Plan (the “2006 Plan”) at August 4, 2016 that subsequently terminate, expire or are cancelled for any reason without having been exercised or paid are added back and become available for issuance under the 2016 Plan, with stock options being added back on a one-for-one basis and full-value awards being added back on a 1 to 1.9 basis. At July 30, 2022, 298,231 stock options remained outstanding under the 2006 Plan.
Stock option outstanding					4,557,902		4,621,550
Percent of shares available for awards				5.00%
Share-based compensation description					Except with respect to 5% of the shares available for awards under the 2016 Plan, no award will become exercisable unless such award has been outstanding for a minimum period of one year from its date of grant.
Options granted					3,640	1,518,154
Shares granted					513,999
Fully-vested shares					336,189
2016 Plan \| RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares granted					496,467	8,054
Fully-vested shares					318,657
2016 Plan \| Fully-vested shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares granted					17,532
Fully-vested shares					17,532
2006 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock option outstanding					298,231