Statements of Operations-Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Interest expense, net
Amortization of debt issuance costs and debt discount	$ 253	$ 251	$ 761	$ 734
Acquisition-related accrued interest	459	394	1,314	1,083
Other	37	79	165	335
Interest expense	4,250	4,332	13,198	12,224
Interest (income)	(321)	(67)	(1,490)	(173)
Interest expense, net	3,929	4,265	11,708	12,051
Depreciation and amortization
Depreciation of property, plant and equipment	5,400	4,328	15,083	12,514
Amortization of intangible assets	1,436	1,469	4,398	3,988
Amortization of other assets	6	59	123	176
Depreciation and amortization	6,842	5,856	19,604	16,678
Term B Loans
Interest expense, net
Interest expense, net	2,859	2,888	8,630	8,750
Revolving credit facility
Interest expense, net
Interest expense, net	$ 642	$ 720	$ 2,328	$ 1,322