Goodwill and Other Intangible Assets - Identifiable Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 26, 2014	Dec. 27, 2013	Dec. 26, 2014	Dec. 27, 2013	Dec. 26, 2014	Jun. 30, 2014
Finite-lived Intangible Assets
Finite-Lived Intangible Assets, Gross			$ 12,235		$ 16,348
Accumulated Amortization of Identifiable Intangible Assets	(6,100)		(6,100)			(4,483)
Finite-Lived Intangible Assets, Net	10,248		10,248			7,752
Indefinite-lived Intangible Assets
Indefinite-Lived Intangible Assets (Excluding Goodwill)	16,774		16,774			12,661
Intangible Assets Net Excluding Goodwill Accumulated Amortization	(6,100)		(6,100)			(4,483)
Intangible Assets, Net (Excluding Goodwill)	10,674		10,674			8,178
Amortization period of identifiable intangible assets			6 years
Amortization of Intangible Assets	1,014	681	1,728	1,372
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2015	1,758		1,758
2016	2,915		2,915
2017	2,335		2,335
2018	1,748		1,748
2019	948		948
2020 and thereafter	544		544
Engineering Licenses
Indefinite-lived Intangible Assets
Indefinite-Lived Intangible Assets (Excluding Goodwill)	426		426		426	426
Customer Relationships
Finite-lived Intangible Assets
Finite-Lived Intangible Assets, Gross			12,125		16,213
Accumulated Amortization of Identifiable Intangible Assets	(5,999)		(5,999)			(4,400)
Finite-Lived Intangible Assets, Net	10,214		10,214			7,725
Indefinite-lived Intangible Assets
Amortization period of identifiable intangible assets			6 years
Contract Backlog
Finite-lived Intangible Assets
Finite-Lived Intangible Assets, Gross			110		135
Accumulated Amortization of Identifiable Intangible Assets	(101)		(101)			(83)
Finite-Lived Intangible Assets, Net	$ 34		$ 34			$ 27
Indefinite-lived Intangible Assets
Amortization period of identifiable intangible assets			4 months