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Balance Sheet Components (Inventory Adjustments) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 30, 2016
Jan. 01, 2016
Dec. 30, 2016
Jan. 01, 2016
Balance Sheet Related Disclosures [Abstract]        
Excess and obsolete inventory charges $ 94 $ 979 $ 568 $ 1,957
Customer service inventory write-down 242 219 529 348
Charges for inventory and customer service inventory write-downs $ 336 $ 1,198 $ 1,097 $ 2,305