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Business Segments (Schedule Of Identifiable Assets By Geographic Area, Property, Plant & Equipment, Net By Geographic Area) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Identifiable Assets by Geographic Area, Total	$ 542,093	$ 523,584
Property, Plant & Equipment, Net by Geographic Area, Total	186,411	170,381
Cash, Cash Equivalents, and Federal Funds Sold	19,232	30,521
Property, Plant & Equipment, Net of Discontinued operations by Geographic Area, Total	186,411	170,381
Discontinued operations	0	178
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	0	0
United States
Segment Reporting Information [Line Items]
Identifiable Assets by Geographic Area, Total	413,512	398,749
Property, Plant & Equipment, Net by Geographic Area, Total	146,437	135,310
General corporate
Segment Reporting Information [Line Items]
Identifiable Assets by Geographic Area, Total	23,674	23,482
Property, Plant & Equipment, Net by Geographic Area, Total	2,686	1,567
Operations Outside The United States | Brazil
Segment Reporting Information [Line Items]
Identifiable Assets by Geographic Area, Total	72,725	54,299
Property, Plant & Equipment, Net by Geographic Area, Total	25,385	18,615
Operations Outside The United States | China
Segment Reporting Information [Line Items]
Identifiable Assets by Geographic Area, Total	12,950	16,355
Property, Plant & Equipment, Net by Geographic Area, Total	$ 11,903	$ 14,889

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Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Includes PP&E reclassified to long-term assets for discontinued operations.

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