Stock-Based Compensation - Stock Option Activity (Details) - USD ($)	3 Months Ended	12 Months Ended
May 04, 2019	May 05, 2018	Feb. 02, 2019
Number of shares
Options granted	0	138,888
Employee Stock Plan, 2006 Plan and 2016 Plan
Number of shares
Outstanding options at beginning of year	957,400
Outstanding options at end of quarter	957,400		957,400
Options exercisable at end of quarter	849,808
Weighted-average exercise price per option
Outstanding options at beginning of year	$ 4.50
Outstanding options at end of quarter	4.50		$ 4.50
Options exercisable at end of quarter	$ 4.76
Weighted-average remaining contractual term
Outstanding options	4 years 9 months 18 days		5 years 1 month 6 days
Options exercisable at end of quarter	4 years 2 months 12 days
Aggregate Intrinsic Value
Outstanding options at beginning of year	$ 16,878
Outstanding options at end of quarter	2,850		$ 16,878
Options exercisable at end of quarter	$ 1,900

Share based compensation arrangement by share based payment award aggregate intrinsic value.

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Share based compensation arrangement by share based payment award options weighted average remaining contractual term.

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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