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Segment Information (Reconciliation of Assets from Segment to Consolidated) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Consolidated income taxes receivable	$ 27	$ 535
Total assets	182,742	245,202
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total operating assets	182,715	244,188
Consolidated income taxes receivable	27	1,014
Total assets	182,742	245,202
Operating Segments [Member] | Manufacturing [Member]
Segment Reporting Information [Line Items]
Total operating assets	114,669	156,859
Operating Segments [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Total operating assets	$ 68,046	$ 87,329

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