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Accumulated Other Comprehensive Income and Reclassifications Adjustments (Details) - USD ($) $ in Thousands		6 Months Ended
	Apr. 30, 2019	Oct. 26, 2019
Accumulated other comprehensive loss
Balance, net of $0 deferred taxes, as of April 30, 2019		$ 2
Balance, net of $0 deferred taxes, as of July 27, 2019	$ 2	181
Other comprehensive income, tax	0	0
Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive loss
Balance, net of $0 deferred taxes, as of April 30, 2019		2
Change in foreign currency translation adjustments, net of $0 taxes		179
Balance, net of $0 deferred taxes, as of July 27, 2019	$ 2	$ 181

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

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