Property And Equipment (Summary Of Property And Equipment) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	$ 23,879	$ 23,482
Less: Accumulated Depreciation	(17,052)	(16,869)
Property and Equipment, Net	6,827	6,613
Building and Land [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	7,835	7,844
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	14,958	14,578
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	$ 1,086	$ 1,060