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Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
3 Months Ended
Feb. 28, 2026
Feb. 28, 2025
Revenues $ 6,640,285 $ 5,140,955
Cost of goods sold 4,728,825 3,644,446
Gross profit 1,911,460 1,496,509
Expenses    
Engineering 106,548 85,230
Selling 436,703 349,977
General and administrative 1,038,192 1,058,817
Total expenses 1,581,443 1,494,024
Income (loss) from operations 330,017 2,485
Other income (expense):    
Interest expense (110,777) (75,688)
Other 36,208 2,794
Total other income (expense) (74,569) (72,894)
Income (loss) before income taxes 255,448 (70,409)
Income tax expense (benefit) 59,006 (14,652)
Net income (loss) $ 196,442 $ (55,757)