Supplementary Information (Unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Unaudited consolidated quarterly statements of operations data
Net revenues	$ 55,436	$ 54,123	$ 49,804	$ 49,428	$ 60,859	$ 66,989	$ 67,959	$ 49,122	$ 208,791	$ 244,929	$ 228,710
Gross margin	22,132	22,574	17,572	20,390	30,264	35,063	40,913	29,916	82,668	136,156	129,899
(Loss) income from operations	(3,963)	(1,463)	(7,079)	(11,184)	5,956	7,106	13,485	3,565	(23,689)	30,112	24,985
(Loss) income before income taxes	(3,891)	(1,444)	(6,976)	(10,851)	6,306	7,625	13,873	3,967	(23,162)	31,771	26,502
Tax (benefit) provision	(1,879)	(2,232)	(2,192)	(3,651)	630	2,380	4,828	1,314	(9,954)	9,152	8,060
Net (loss) income	$ (2,012)	$ 788	$ (4,784)	$ (7,200)	$ 5,676	$ 5,245	$ 9,045	$ 2,653	$ (13,208)	$ 22,619	$ 18,442
Net (loss) earnings per share:
Basic net (loss) earnings per share (dollars per share)	$ (0.07)	$ 0.03	$ (0.16)	$ (0.24)	$ 0.19	$ 0.18	$ 0.31	$ 0.09
Diluted net (loss) earnings per share (dollars per share)	$ (0.07)	$ 0.03	$ (0.16)	$ (0.24)	$ 0.19	$ 0.17	$ 0.30	$ 0.09