Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Net sales	$ 16,918,000	$ 10,002,000
Cost of sales	12,834,000	7,396,000
Gross profit	4,084,000	2,606,000
Operating expenses:
Engineering	454,000	431,000
Selling and general	3,992,000	2,764,000
Total operating expenses	4,446,000	3,195,000
Operating loss	(362,000)	(589,000)
Other income (expense)	5,000	(8,000)
Loss before benefit for income taxes	(357,000)	(597,000)
Benefit from income taxes	(80,000)	(194,000)
Consolidated net loss	$ (277,000)	$ (403,000)
Loss per share
Basic (in dollars per share)	$ (0.03)	$ (0.04)
Diluted (in dollars per share)	$ (0.03)	$ (0.04)
Weighted average shares outstanding
Basic (in shares)	10,067,186	9,864,689
Diluted (in shares)	10,067,186	9,864,689