Property And Equipment (Summary Of Property And Equipment) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jun. 30, 2018
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	$ 23,467	$ 23,482
Less: Accumulated Depreciation	(16,938)	(16,869)
Property and Equipment, Net	6,529	6,613
Building and Land [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	7,658	7,844
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	14,633	14,578
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	$ 1,176	$ 1,060