Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Net sales	$ 9,544	$ 15,511	$ 32,348	$ 39,784
Cost of sales	6,814	11,245	23,778	28,279
Gross profit	2,730	4,266	8,570	11,505
Operating expenses:
Engineering	429	381	1,553	1,033
Selling and general	2,521	2,609	7,423	7,048
Total operating expenses	2,950	2,990	8,976	8,081
Operating (loss) income	(220)	1,276	(406)	3,424
Other income	1	39	18	75
(Loss) income before provision (benefit) for income taxes	(219)	1,315	(388)	3,499
(Benefit) provision for income taxes	(137)	277	(148)	760
Consolidated net (loss) income	$ (82)	$ 1,038	$ (240)	$ 2,739
(Loss) earnings per share
Basic (in dollars per share)	$ (0.01)	$ 0.11	$ (0.02)	$ 0.29
Diluted (in dollars per share)	$ (0.01)	$ 0.11	$ (0.02)	$ 0.28
Weighted average shares outstanding
Basic (in shares)	9,714,700	9,363,528	9,661,054	9,343,067
Diluted (in shares)	9,714,700	9,872,899	9,661,054	9,849,889

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a),(d))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227