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Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Reconciliation of Cash, Cash Equivalents (Details) - USD ($)
$ in Thousands
May 26, 2019
May 27, 2018
May 28, 2017
Accounting Policies [Abstract]      
Cash and cash equivalents $ 1,080 $ 2,899 $ 5,998
Restricted cash 385 325 325
Cash, discontinued operations 0 (8) (589)
Cash and cash equivalents presented on Statements of Cash Flows $ 1,465 $ 3,216 $ 5,734