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Basis of Presentation (Tables) | 3 Months Ended
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Jul. 28, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Cash and Cash Equivalents [Table Text Block] | The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the condensed consolidated balance sheet that sum to total of the same amounts showing in the condensed consolidated statement of cash flows:
| July 28, 2018 |  | July 29, 2017
Cash and cash equivalents | $ | 15,915 |  |  | $ | 26,868 |
Restricted cash | 26 |  |  | 222 |
Total cash, cash equivalents, and restricted cash shown in the condensed consolidated statement of cash flows | $ | 15,941 |  |  | $ | 27,090 |

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- Definition Tabular disclosure of the components of cash and cash equivalents. + References No definition available. + Details
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