Inventories (Schedule Of Inventories) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Inventory [Line Items]
Raw materials	$ 8,986	$ 5,887
Work-in process	2,342	2,020
Finished products and components	3,144	2,076
Total	14,472	9,983
Domestic [Member]
Inventory [Line Items]
Raw materials	6,514	3,993
Work-in process	1,706	1,300
Finished products and components	2,801	1,838
Total	11,021	7,131
Foreign [Member]
Inventory [Line Items]
Raw materials	2,472	1,894
Work-in process	636	720
Finished products and components	343	238
Total	$ 3,451	$ 2,852