Quarterly Consolidated Financial 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
Quarterly Consolidated Financial Information [Abstract]
Net sales	$ 13,813	$ 17,110	$ 15,996	$ 17,540	$ 17,858	$ 18,278	$ 17,837	$ 17,198	$ 64,459	$ 71,171	$ 63,444
Gross margin	7,800	10,085	8,807	9,698	10,707	10,248	9,956	9,502	36,390	40,413	36,837
Operating income (loss)	(757)	1,462	(608)	849	2,107	1,260	1,133	800	946	5,300	5,035
Net income (loss)	$ (945)	$ 784	$ (571)	$ 387	$ 15,600	$ 1,082	$ 1,089	$ 734	$ (345)	$ 18,505	$ 4,248
Net income (loss) per share-basic (in dollars per share)	$ (0.10)	$ 0.09	$ (0.06)	$ 0.04	$ 1.75	$ 0.12	$ 0.12	$ 0.08	$ (0.04)	$ 2.08	$ 0.49
Net income (loss) per share-diluted (in dollars per share)	$ (0.10)	$ 0.09	$ (0.06)	$ 0.04	$ 1.72	$ 0.12	$ 0.12	$ 0.08	$ (0.04)	$ 2.04	$ 0.48