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Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
 3 Months Ended 9 Months Ended
Jul. 31, 2025
Jul. 31, 2024
Jul. 31, 2025
Jul. 31, 2024
Net sales $ 19,790,000 $ 16,836,000 $ 57,900,000 $ 46,404,000
Cost of sales 13,071,000 11,875,000 39,514,000 33,316,000
Gross profit 6,719,000 4,961,000 18,386,000 13,088,000
Operating expenses:        
Engineering 759,000 653,000 2,124,000 2,059,000
Selling and general 5,240,000 4,727,000 15,380,000 13,948,000
Total operating expenses 5,999,000 5,380,000 17,504,000 16,007,000
Operating income (loss) 719,000 (419,000) 882,000 (2,919,000)
Other expense (240,000) (338,000) (721,000) (676,000)
Loss before provision (benefit) for income taxes 480,000 (757,000) 161,000 (3,595,000)
Provision (benefit) for income taxes 88,000 (52,000) 259,000 2,766,000
Consolidated net income (loss) $ 392,000 $ (705,000) $ (98,000) $ (6,361,000)
Loss per share:        
Basic (in dollars per share) $ 0.04 $ (0.07) $ (0.01) $ (0.61)
Diluted (in dollars per share) $ 0.04 $ (0.07) $ (0.01) $ (0.61)
Weighted average shares outstanding:        
Basic (in shares) 10,668,375 10,495,082 10,632,566 10,466,862
Diluted (in shares) 10,774,304 10,495,082 10,632,566 10,466,862