Statements of Operations-Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Interest expense, net
Amortization of debt issuance costs and debt discount	$ 255	$ 242	$ 508	$ 484
Acquisition-related accrued interest	462	344	855	689
Other	47	169	128	255
Interest expense	4,361	4,024	8,948	7,892
Interest (income)	(489)	(57)	(1,169)	(106)
Interest expense, net	3,872	3,967	7,779	7,786
Depreciation and amortization
Depreciation of property, plant and equipment	4,952	4,075	9,683	8,186
Amortization of intangible assets	1,434	1,260	2,962	2,519
Amortization of other assets	58	58	117	117
Depreciation and amortization	6,444	5,393	12,762	10,822
Term B Loans
Interest expense, net
Acquisition-related accrued interest	2,866	2,927	5,771	5,862
Revolving credit facility
Interest expense, net
Acquisition-related accrued interest	$ 731	$ 342	$ 1,686	$ 602