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Segment Information (Reconciliation of Assets from Segment to Consolidated) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total assets	$ 158,070	$ 182,742
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total operating assets	157,910	182,715
Consolidated income taxes receivable	160	27
Total assets	158,070	182,742
Operating Segments [Member] | Manufacturing [Member]
Segment Reporting Information [Line Items]
Total operating assets	110,145	114,669
Operating Segments [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Total operating assets	$ 47,765	$ 68,046

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Aggregate amount of assets used to generate operating income.

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