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Additional Balance Sheet Information (Details) - USD ($)
$ in Thousands
Dec. 29, 2016
Dec. 31, 2015
Trade receivables, net of allowances of $204 and $259, respectively $ 6,349 $ 5,898
Other receivables 8,412 7,468
Accounts, Notes, Loans and Financing Receivable, Net, Current $ 14,761 $ 13,366