Consolidated Statements of Operations (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Loss on sale of assets		$ 865	$ 865	$ 865

Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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