Segment And Geographic Information (Schedule Of Sales By Geographic Area) (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 23,594	$ 21,397	$ 20,433	$ 19,269	$ 22,351	$ 16,325	$ 21,751	$ 17,520	$ 84,693	$ 77,947	$ 69,135
Long-lived assets, net	7,338				8,102				7,338	8,102	8,696
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									23,200	21,800	19,700
Long-lived assets, net	173				285				173	285	395
Italy [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									10,300	10,300	11,400
Long-lived assets, net	1,263				1,245				1,263	1,245	1,201
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									14,000	11,500	11,800
Long-lived assets, net	$ 71				$ 165				$ 71	$ 165	$ 295