Summary of Significant Accounting Policies - Changes in Product Warranty Accrual (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 02, 2021	Jul. 03, 2020	Jun. 30, 2019
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Beginning Balance	$ 3,835	$ 1,870	$ 1,336
Standard and Extended Product Warranty Accrual, Increase (Decrease) for Preexisting Warranties	2,446
Accruals for warranties issued during the period		2,839	2,274
Settlements made during the period	(2,998)	(1,613)	(1,909)
Ending Balance	$ 3,283	3,835	1,870
Minimum
Product Warranty Liability [Line Items]
Product warranty term	12 months
Maximum
Product Warranty Liability [Line Items]
Product warranty term	36 months
American Panel Corporation
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Warranty assumed from CES	$ 0	739	0
Germane Systems, LC
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Warranty assumed from CES	$ 0	$ 0	$ 169