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Export Sales (Details) - USD ($)
$ in Thousands
12 Months Ended
Jul. 01, 2018
Jul. 02, 2017
Jul. 03, 2016
Concentration Risk [Line Items]      
Net Sales $ 439,195 $ 417,325 $ 401,419
Export Sales      
Concentration Risk [Line Items]      
Net Sales $ 157,862 $ 160,275 $ 152,728
Export Sales | Sales Revenue Net | Geographic Concentration Risk      
Concentration Risk [Line Items]      
Percentage of Export Sales 36.00% 38.00% 38.00%
Canada | Geographic Concentration Risk      
Concentration Risk [Line Items]      
Net Sales $ 70,920 $ 73,481 $ 74,310
Canada | Sales Revenue Net | Geographic Concentration Risk      
Concentration Risk [Line Items]      
Percentage of Export Sales 16.00% 18.00% 19.00%