Note 8 - Segment Information - Net Sales, Income Before Provision for Income Taxes and Other Related Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023	Oct. 31, 2023	Apr. 30, 2023
Net sales	$ 16,836	$ 15,652	$ 46,404	$ 56,294
Income (loss) before benefit for income taxes	(757)	(2,127)	(3,595)	(3,032)
Depreciation and amortization	638	631	1,904	1,795
Total assets	71,860	78,056	71,860	78,056	$ 82,278	$ 78,056
Operating Segments [Member] | RF Connector and Cable Assembly [Member]
Net sales	9,697	10,515	28,406	34,861
Income (loss) before benefit for income taxes	(715)	(1,392)	(3,104)	(1,027)
Depreciation and amortization	525	507	1,610	1,418
Total assets	49,355	52,358	49,355	52,358		52,358
Operating Segments [Member] | Custom Cabling Manufacturing and Assembly [Member]
Net sales	7,139	5,137	17,998	21,433
Income (loss) before benefit for income taxes	297	(424)	386	(958)
Depreciation and amortization	113	124	294	377
Total assets	18,112	17,345	18,112	17,345		17,345
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Net sales	0	0	0	0
Income (loss) before benefit for income taxes	(339)	(311)	(877)	(1,047)
Depreciation and amortization	0	0	0	0
Total assets	$ 4,393	$ 8,353	$ 4,393	$ 8,353		$ 8,353