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Net sales, income (loss) before provision for income taxes and other related segment information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017
Segment Reporting Information [Line Items]
Net sales	$ 13,850	$ 7,808	$ 46,571	$ 22,065
Income (loss) from continuing operations before provision (benefit) for income taxes	2,156	189	6,733	(86)
Depreciation and amortization	212	215	634	649
RF Connector and Cable Assembly
Segment Reporting Information [Line Items]
Net sales	3,139	2,964	8,503	8,106
Income (loss) from continuing operations before provision (benefit) for income taxes	310	153	(34)	236
Depreciation and amortization	42	43	129	131
Custom Cabling Manufacturing and Assembly
Segment Reporting Information [Line Items]
Net sales	10,711	4,844	38,068	13,959
Income (loss) from continuing operations before provision (benefit) for income taxes	1,833	31	6,747	(345)
Depreciation and amortization	170	172	505	518
Corporate
Segment Reporting Information [Line Items]
Net sales	0	0	0	0
Income (loss) from continuing operations before provision (benefit) for income taxes	13	5	20	23
Depreciation and amortization	$ 0	$ 0	$ 0	$ 0

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The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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