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Continuing operations and reported as discontinued operations (Details) - Comnet Telecom Division [Member] $ in Thousands	3 Months Ended
	Jan. 31, 2018 USD ($)
Major line items constituting pretax income from discontinued operations:
Net sales	$ 2,374
Cost of sales	(1,765)
Gross profit	609
Selling, general and administrative expense	(413)
Pretax income from discontinued operations	196
Provision for income taxes	46
Income from discontinued operations	$ 150

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