Segment And Geographic Information (Schedule Of Sales By Geographic Area) (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
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales										34,720	30,311	22,523
Long-lived assets, net		5,608				6,202				5,608	6,202	6,607
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	[1]									33,492	32,139	31,087
Long-lived assets, net	[1]	1,541				1,638				1,541	1,638	1,696
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	[2]									16,481	15,497	15,525
Long-lived assets, net	[2]	$ 189				$ 262				$ 189	$ 262	$ 393

[1] Our German subsidiary had net external sales of $23.2 million, $21.8 million and $19.7 million in the fiscal years ended June 30, 2018, 2017 and 2016, respectively. Long-lived assets, net of our German subsidiary were $173,000, $285,000 and $395,000 as of June 30, 2018, 2017 and 2016, respectively. Our Italian subsidiary had net external sales of $10.3 million, $10.3 million, and $11.4 in the fiscal years ended June 30, 2018, 2017 and 2016, respectively. Long-lived assets, net of our Italian subsidiary were $1,263,000, $1,245,000 and $1,201,000 as of June 30, 2018, 2017 and 2016, respectively.

[2] Our Chinese subsidiary had net external sales of $14.0 million, $11.5 million and $11.8 million in the fiscal years ended June 30, 2018, 2017 and 2016, respectively. Long-lived assets, net of our Chinese subsidiary were $71,000, $165,000 and $295,000 as of June 30, 2018, 2017 and 2016, respectively.