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Additional Balance Sheet Information (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
May. 28, 2015
May. 29, 2014
Trade receivables, net of allowances of $259, $245 and 1,423, respectively $ 5,898 $ 6,363 $ 5,023
Other receivables 7,468 9,976 4,449
Accounts, Notes, Loans and Financing Receivable, Net, Current $ 13,366 $ 16,339 $ 9,472