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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
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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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