Goodwill and Intangible Assets - Intangible Assets Summary and Future Amortization (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2018	Oct. 01, 2017	Jun. 30, 2018
Intangible assets
Gross Carrying Amount	$ 31,149		$ 31,149
Accumulated Amortization	(15,723)		(14,879)
Net Carrying Amount	15,426		16,270
Amortization expense	800	$ 800
Estimated future amortization expense
2019	2,348
2020	2,636
2021	2,636
2022	2,636
2023	2,636
Thereafter	2,534
Net Carrying Amount	15,426		16,270
Impairments of long-lived assets	$ 0	$ 0
Minimum
Intangible assets
Estimated useful life	5 years
Maximum
Intangible assets
Estimated useful life	15 years
Patents and tradenames
Intangible assets
Gross Carrying Amount	$ 3,418		3,418
Accumulated Amortization	(1,002)		(945)
Net Carrying Amount	2,416		2,473
Estimated future amortization expense
Net Carrying Amount	2,416		2,473
Customer relationships
Intangible assets
Gross Carrying Amount	24,077		24,077
Accumulated Amortization	(11,443)		(10,838)
Net Carrying Amount	12,634		13,239
Estimated future amortization expense
Net Carrying Amount	12,634		13,239
Non-compete agreements
Intangible assets
Gross Carrying Amount	3,654		3,654
Accumulated Amortization	(3,278)		(3,096)
Net Carrying Amount	376		558
Estimated future amortization expense
Net Carrying Amount	$ 376		$ 558