Selected Quarterly Financial Data (Schedule Of Quarterly Financial Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Selected Quarterly Financial Data [Abstract]
Net Sales	$ 22,351	$ 16,325	$ 21,751	$ 17,520	$ 18,774	$ 18,082	$ 17,211	$ 15,068	$ 77,947	$ 69,135	$ 74,405
Gross Profit	8,561	5,190	9,444	4,574	6,416	5,202	5,095	4,426	27,769	21,139	28,271
Net (loss) income	$ 261	$ (598)	$ 2,524	$ (2,355)	$ (15,594)	$ (2,865)	$ (1,546)	$ (2,108)	$ (168)	$ (22,113)	$ (461)
Net (loss) income per share, Basic	$ 0.03	$ (0.06)	$ 0.27	$ (0.25)	$ (1.66)	$ (0.31)	$ (0.17)	$ (0.23)	$ (0.02)	$ (2.36)	$ (0.05)
Net (loss) income per share, Diluted	$ 0.03	$ (0.06)	$ 0.27	$ (0.25)	$ (1.66)	$ (0.31)	$ (0.17)	$ (0.23)	$ (0.02)	$ (2.36)	$ (0.05)