Segment And Georaphic Information (Schedule Of Sales By Geographic Area) (Details) - USD ($)		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
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales		$ 22,351,000	$ 16,325,000	$ 21,751,000	$ 17,520,000	$ 18,774,000	$ 18,082,000	$ 17,211,000	$ 15,068,000	$ 77,947,000	$ 69,135,000	$ 74,405,000
Long-lived assets, net		8,102,000				8,696,000				8,102,000	8,696,000	7,667,000
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales										30,311,000	22,523,000	28,434,000
Long-lived assets, net		6,202,000				6,607,000				6,202,000	6,607,000	6,532,000
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	[1]									32,139,000	31,087,000	29,636,000
Long-lived assets, net	[1]	1,638,000				1,696,000				1,638,000	1,696,000	797,000
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	[2]									15,497,000	15,525,000	16,335,000
Long-lived assets, net	[2]	262,000				393,000				262,000	393,000	338,000
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales										21,800,000	19,700,000	24,000,000
Long-lived assets, net		285,000				395,000				285,000	395,000	320,000
Italy [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales										10,300,000	11,400,000	5,600,000
Long-lived assets, net		1,245,000				1,201,000				1,245,000	1,201,000	438,000
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales										11,500,000	11,800,000	12,300,000
Long-lived assets, net		$ 165,000				$ 295,000				$ 165,000	$ 295,000	$ 195,000

[1] Our German subsidiary had net external sales of $21.8 million, $19.7 million and $24.0 million in the fiscal years ended June 30, 2017, 2016 and 2015, respectively. Long-lived assets of our German subsidiary were $285,000, $395,000 and $320,000 as of June 30, 2017, 2016 and 2015, respectively. Our Italian subsidiary had net external sales of $10.3 million, $11.4 million, and $5.6 in the fiscal years ended June 30, 2017, 2016 and 2015, respectively. Long-lived assets of our Italian subsidiary were $1,245,000, $1,201,000 and $438,000 as of June 30, 2017, 2016 and 2015, respectively.

[2] Our Chinese subsidiary had net external sales of $11.5 million, $11.8 million and $12.3 million in the fiscal years ended June 30, 2017, 2016 and 2015, respectively. Long-lived assets of our Chinese subsidiary were $165,000, $295,000 and $195,000 as of June 30, 2017, 2016 and 2015, respectively.