Note 9 - Segment Information - Net Sales, Income Before Provision for Income Taxes and Other Related Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021	Oct. 31, 2021
Net sales	$ 21,505	$ 11,057	$ 38,423	$ 21,059
Income (loss) before provision (benefit) for income taxes	639	5,493	282	4,896
Depreciation and amortization	438	177	618	414
Total assets	69,647	42,767	69,647	42,767	$ 49,648
Corporate, Non-Segment [Member]
Net sales	0	0	0	0
Income (loss) before provision (benefit) for income taxes	(745)	2,809	(1,472)	2,801
Depreciation and amortization	0	0	0	0
Total assets	8,437	18,469	8,437	18,469
RF Connector and Cable Assembly [Member] | Operating Segments [Member]
Net sales	7,510	3,552	11,433	7,127
Income (loss) before provision (benefit) for income taxes	577	1,495	633	1,947
Depreciation and amortization	293	35	330	70
Total assets	34,398	7,463	34,398	7,463
Custom Cabling Manufacturing and Assembly [Member] | Operating Segments [Member]
Net sales	13,995	7,505	26,990	13,932
Income (loss) before provision (benefit) for income taxes	807	1,189	1,121	148
Depreciation and amortization	145	142	288	344
Total assets	$ 26,812	$ 16,835	$ 26,812	$ 16,835