Operating Segment, Geographic Information and Significant Customers - Customers Comprising Ten Percent or more Revenues (Details) - Customer Concentration Risk - Sales Revenue, Net	3 Months Ended		9 Months Ended
	Apr. 02, 2021	Mar. 27, 2020	Apr. 02, 2021	Mar. 27, 2020
Revenue, Major Customer [Line Items]
Concentration risk, percentage	48.00%	34.00%	37.00%	42.00%
Raytheon Company
Revenue, Major Customer [Line Items]
Concentration risk, percentage	18.00%	17.00%	22.00%	15.00%
U.S. Navy
Revenue, Major Customer [Line Items]
Concentration risk, percentage	16.00%
Lockheed Martin Corporation
Revenue, Major Customer [Line Items]
Concentration risk, percentage	14.00%	17.00%	15.00%	17.00%
L3Harris Technologies
Revenue, Major Customer [Line Items]
Concentration risk, percentage				10.00%