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BUSINESS COMBINATIONS - Pro Forma Information - Tabular Disclosure (Details) - Alternative Power Generation, Inc., Alternative Power Generation, Inc., and Enica Engineering, PLLC - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 04, 2025	Mar. 29, 2024
Business Acquisition, Pro Forma Information
Pro forma revenue	$ 156,257	$ 135,367
Pro forma income (loss) from operations	6,785	7,992
Pro forma net income (loss)	$ 4,460	$ 4,901
Earnings (loss) per share, basic (in dollars per share)	$ 0.31	$ 0.36
Earnings (loss) per share, diluted (in dollars per share)	$ 0.3	$ 0.35
Weighted average shares outstanding, basic (in shares)	14,163	13,605
Weighted average shares outstanding, diluted (in shares)	14,628	13,910

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- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Section 50
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