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Segment Information (Reconciliation of Assets from Segment to Consolidated) (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Total Operating Assets | $ 335,591 | $ 287,691
Consolidated income taxes receivable | 2,047 | 2,046
Total assets | 337,638 | 289,737
Manufacturing [Member] |  |
Segment Reporting Information [Line Items] |  |
Total Operating Assets | 246,469 | 208,663
Corporate and Other [Member] |  |
Segment Reporting Information [Line Items] |  |
Total Operating Assets | $ 89,122 | $ 79,028

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