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Income Taxes (Components Of Income before Income Taxes) (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2018
Mar. 31, 2018
Dec. 30, 2017
Sep. 30, 2017
Jul. 01, 2017
Apr. 01, 2017
Dec. 31, 2016
Oct. 01, 2016
Jun. 30, 2018
Jul. 01, 2017
Jul. 02, 2016
Income Tax Disclosure [Abstract]                      
Domestic                 $ (4,593) $ 3,553 $ 2,228
Foreign                 3,151 3,703 5,923
Income before income taxes $ (3,170) $ 123 $ 1,035 $ 570 $ 1,777 $ 1,283 $ 1,995 $ 2,201 $ (1,442) $ 7,256 $ 8,151