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SHARE-BASED COMPENSATION - Stock Option Activity (Details)	12 Months Ended
	Jan. 30, 2021 $ / shares shares
SHARE-BASED COMPENSATION
Outstanding, total number of stock options (in shares) | shares	35,667
Outstanding, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 19.70
Forfeited, total number of stock options (in shares) | shares	(9,000)
Forfeited, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 9.89
Canceled or expired, total number of stock options (in shares) | shares	(2,000)
Canceled or expired, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 13.99
Outstanding, total number of stock options (in shares) | shares	24,667
Outstanding, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 23.74
Exercisable, total number of stock options (in shares) | shares	24,667
Exercisable, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 23.74

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(4)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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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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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 2
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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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