Note 7 - Segment Information - Net Sales, Income Before Provision for Income Taxes and Other Related Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Net sales	$ 43,044	$ 55,325
Income (loss) before benefit for income taxes	(448)	4,557
Depreciation and amortization	1,014	563
Total assets	40,822	37,700
Corporate, Non-Segment [Member]
Net sales
Income (loss) before benefit for income taxes	(44)	98
Depreciation and amortization
Total assets	17,514	13,337
RF Connector and Cable Assembly [Member] | Operating Segments [Member]
Net sales	14,554	13,704
Income (loss) before benefit for income taxes	2,019	868
Depreciation and amortization	159	170
Total assets	7,822	7,081
Custom Cabling Manufacturing and Assembly [Member] | Operating Segments [Member]
Net sales	28,490	41,621
Income (loss) before benefit for income taxes	(2,423)	3,591
Depreciation and amortization	855	393
Total assets	$ 15,486	$ 17,282