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9. Intangible Assets (Details) | Oct. 28, 2018 USD ($)
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Disclosure Text Block [Abstract] |
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year | $ 596,000

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- References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant