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Revenue Recognition Revenue Recognition (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Oct. 31, 2018 | Aug. 01, 2018
Revenue Recognition [Abstract] |  |
Contract with Customer, Liability | $ 2,800 | $ 2,796
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Explanation | Of this amount, the Company expects to recognize 34% as revenue by the end of fiscal 2019, an additional 37% by the end of fiscal 2020, and the balance thereafter. |
Deferred Revenue, Revenue Recognized | $ 308 |

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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130531-203044 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130532-203044 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045 + Details
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