Intangible Assets, Net - Components of Intangible Assets, Net (Details) - USD ($) $ in Thousands	Jun. 28, 2020	Jun. 30, 2019
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 3,945	$ 25,906
Intangible assets, accumulated amortization	(2,533)	(23,736)
Total intangible assets, net	1,412	2,170
Customer Lists [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	1,615	23,615
Intangible assets, accumulated amortization	(1,493)	(23,166)
Non-compete Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	1,875	1,875
Intangible assets, accumulated amortization	(813)	(438)
Trademarks [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	455	416
Intangible assets, accumulated amortization	$ (227)	$ (132)