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Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($)
12 Months Ended
Dec. 28, 2018
Dec. 29, 2017
Dec. 30, 2016
Statement of Comprehensive Income [Abstract]      
Reclassification adjustments to net loss resulting from realized gains or losses on sale of securities $ 0 $ 0 $ 0
Income tax expense (benefit) related to other comprehensive income $ (200,000) $ 0 $ 0