Property And Equipment (Summary Of Property And Equipment) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Jun. 30, 2019
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	$ 20,382	$ 20,549
Less: Accumulated Depreciation	(14,472)	(14,011)
Property and Equipment, Net	5,910	6,538
Building and Land [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	7,638	7,647
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	11,450	11,616
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	$ 1,294	$ 1,286