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Note 12 - Segment Information - Schedule of Segment Information (Details) - USD ($)
3 Months Ended
Mar. 29, 2025
Mar. 30, 2024
Product sales $ 7,505,921 $ 5,912,634
Cost of product sales 6,274,920 5,006,324
Gross profit 1,231,001 906,310
Selling, general, and administrative expenses 1,101,350 1,165,922
Operating income (loss) 129,651 (259,612)
Other income 50,476 79,171
Income (loss) before income taxes 180,127 (180,441)
Income tax provision (benefit) 84,165 (37,288)
Net income (loss) $ 95,962 $ (143,153)