EARNINGS PER SHARE- Schedule of Reconciliation of Basic and Diluted Share Counts (Details) - shares	3 Months Ended	9 Months Ended
Sep. 25, 2024	Sep. 27, 2023	Sep. 25, 2024	Sep. 27, 2023
EARNINGS PER SHARE.
Weighted-average shares outstanding-basic (shares)	29,199,971	33,412,674	30,072,637	35,026,731
Dilutive effect of stock options and restricted shares (shares)	223,678	77,330	162,672	152,752
Weighted-average shares outstanding-diluted (shares)	29,423,649	33,490,004	30,235,309	35,179,483

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- Definition

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
-Topic 718
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- Definition

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
-Topic 260
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-Name Accounting Standards Codification
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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
-Topic 260
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-Name Accounting Standards Codification
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