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CASH FLOW INFORMATION - Stock-Based Compensation (Details) - 2015 EIP Plan - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended
	Feb. 23, 2021	Feb. 25, 2020	Mar. 31, 2021
Restricted Stock Units
Non-cash investing and financing activities
Granted (in shares)	103,599	173,749	103,870
Aggregate fair value	$ 1,027	$ 1,227
Stock Options
Non-cash investing and financing activities
Options to purchase (in shares)	118,552	344,568	118,552
Exercise price	$ 9.91	$ 7.06	$ 9.91
Aggregate fair value	$ 513	$ 693

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- Definition

Represents the aggregate fair value of grants made during the period on other than stock (or unit) option plans.

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- Definition

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- Definition

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).

+ 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)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

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

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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