Supplementary Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Unaudited consolidated quarterly statements of operations data
Net revenues	$ 64,119	$ 59,578	$ 57,089	$ 54,061	$ 53,678	$ 53,393	$ 50,932	$ 50,726	$ 234,847	$ 208,729	$ 194,231
Gross margin	31,267	27,918	27,035	23,999	24,481	24,376	24,325	21,562	110,219	94,744	78,158
Income from operations	7,931	6,157	3,539	728	(296)	(1,407)	(1,661)	(4,041)	18,355	(7,405)	(24,810)
Income from continuing operations before income taxes	7,982	6,163	3,933	717	18	(1,079)	(1,229)	(3,623)	18,795	(5,913)	(24,283)
Income tax provision	1,850	1,469	1,047	0	729	(809)	(442)	(1,319)	4,366	(1,841)	(10,501)
Income (loss) from continuing operations	6,132	4,694	2,886	717	(711)	(270)	(787)	(2,304)	14,429	(4,072)	(13,782)
(Loss) income from discontinued operations, net of income taxes	(202)	(1,019)	(2,621)	(218)	(6,835)	(308)	(258)	48	(4,060)	(7,353)	574
Net income (loss)	$ 5,930	$ 3,675	$ 265	$ 499	$ (7,546)	$ (578)	$ (1,045)	$ (2,256)	$ 10,369	$ (11,425)	$ (13,208)
Basic net earnings (loss) per share:
(Loss) income from continuing operations (dollars per share)	$ 0.19	$ 0.14	$ 0.09	$ 0.02	$ (0.02)	$ (0.01)	$ (0.02)	$ (0.07)	$ 0.45	$ (0.13)	$ (0.46)
(Loss) income from discontinued operations (dollars per share)	(0.01)	(0.03)	(0.08)	0.00	(0.22)	(0.01)	(0.01)	0.00	(0.13)	(0.24)	0.02
Basic net (loss) earnings per share (dollars per share)	0.18	0.11	0.01	0.02	(0.24)	(0.02)	(0.03)	(0.07)	0.32	(0.37)	(0.44)
Diluted net earnings (loss) per share:
(Loss) income from continuing operations (dollars per share)	0.18	0.14	0.09	0.02	(0.02)	(0.01)	(0.02)	(0.07)	0.44	(0.13)	(0.46)
(Loss) income from discontinued operations (dollars per share)	0.00	(0.03)	(0.08)	0.00	(0.22)	(0.01)	(0.01)	0.00	(0.13)	(0.24)	0.02
Diluted net (loss) earnings per share (dollars per share)	$ 0.18	$ 0.11	$ 0.01	$ 0.02	$ (0.24)	$ (0.02)	$ (0.03)	$ (0.07)	$ 0.31	$ (0.37)	$ (0.44)