Property And Equipment (Summary Of Property And Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	$ 20,741	$ 20,549
Less: Accumulated Depreciation	(14,342)	(14,011)
Property and Equipment, Net	6,399	6,538
Building and Land [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	7,653	7,647
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	11,798	11,616
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	$ 1,290	$ 1,286