Segment And Geographic Information (Schedule Of Sales and Long-Lived Assets, Net By Geographical Regions) (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2020	Jun. 30, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales		$ 62,262	$ 76,822
Tangible long-lived assets, net		5,750	6,538
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales		20,183	25,173
Tangible long-lived assets, net		4,262	4,773
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	[1]	29,052	34,563
Tangible long-lived assets, net	[1]	1,321	1,490
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	[2]	13,027	17,086
Tangible long-lived assets, net	[2]	$ 167	$ 275

[1] Our German subsidiary had net external sales of $20.6 million and $24.7 million in the fiscal years ended June 30, 2020 and 2019, respectively.  Tangible long-lived assets, net of our German subsidiary were $148,000 and $209,000 as of June 30, 2020 and 2019, respectively. Our Italian subsidiary had net external sales of $8.4 million and $9.9 million in the fiscal years ended June 30, 2020 2019, respectively.  Tangible long-lived assets, net of our Italian subsidiary were $1,095,000 and $1,166,000 as of June 30, 2020 and 2019, respectively

[2] Our Chinese subsidiary had net external sales of $10.6 million and $13.4 million in the fiscal years ended June 30, 2020 and 2019, respectively.  Tangible long-lived assets, net of our Chinese subsidiary were $64,000 and $97,000 as of June 30, 2020 and 2019, respectively.