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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Weighted Average Number of Shares) (Details) - shares	3 Months Ended								12 Months Ended
	Dec. 26, 2021	Sep. 26, 2021	Jun. 27, 2021	Mar. 28, 2021	Dec. 27, 2020	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 26, 2021	Dec. 27, 2020	Dec. 29, 2019
Schedule of Weighted Average Number of Shares, Diluted [Line Items]
Weighted-average number of basic common shares outstanding	10,414,262	10,380,902	10,340,243	10,332,817	10,318,053	10,312,939	10,306,986	10,308,445	10,367,054	10,311,606	10,238,565
Weighted-average number of diluted common shares outstanding (in shares)	10,464,885	10,427,114	10,391,925	10,394,841	10,334,478	10,326,493	10,306,986	10,382,999	10,416,610	10,338,029	10,350,775
Stock options and restricted stock
Schedule of Weighted Average Number of Shares, Diluted [Line Items]
Effect of dilutive securities (in shares)									49,556	26,423	90,681
Warrant
Schedule of Weighted Average Number of Shares, Diluted [Line Items]
Effect of dilutive securities (in shares)									0	0	21,529

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- Definition

Schedule of Weighted Average Number of Shares, Diluted [Line Items]

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1707-109256

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
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-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
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-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1500-109256

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
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-Section 45
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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

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-Publisher FASB
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-Topic 260
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-Section 45
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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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