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Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
 3 Months Ended
Jan. 31, 2024
Jan. 31, 2023
Net sales $ 13,458,000 $ 18,343,000
Cost of sales 10,155,000 13,257,000
Gross profit 3,303,000 5,086,000
Operating expenses:    
Engineering 769,000 961,000
Selling and general 4,619,000 5,294,000
Total operating expenses 5,388,000 6,255,000
Operating loss (2,085,000) (1,169,000)
Other (expense) income (108,000) (153,000)
Loss before provision for income taxes (2,193,000) (1,322,000)
Benefit from income taxes (831,000) (160,000)
Consolidated net loss $ (1,362,000) $ (1,162,000)
Loss earnings per share:    
Basic (in dollars per share) $ (0.13) $ (0.11)
Diluted (in dollars per share) $ (0.13) $ (0.11)
Weighted average shares outstanding:    
Basic (in shares) 10,410,580 10,222,540
Diluted (in shares) 10,410,580 10,222,540