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Contingent Liabilities (Reconciliation of Product Liability Reserve) (Details) - Product Liability Reserve [Member] - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
Balance at Beginning of Period | [1] | $ 819 | $ 1,819 | $ 744
Accrued Legal Expense (Income) | [2] | 731 | (477) | 1,221
Legal Fees | [3] | (183) | (290) | (133)
Settlements | [4] | (195) | (233) | (13)
Balance at End of Period | [1] | $ 1,172 | $ 819 | $ 1,819
[1] | The beginning and ending liability balances represent accrued legal fees only. Settlements and administrative costs are expensed as incurred. Only in rare instances is an accrual established for settlements.
[2] | The expense accrued in the liability is for legal fees only. In 2015 and 2017, the costs incurred related to cases that were settled or dismissed were less than the amounts accrued for these cases in prior years.
[3] | Legal fees represent payments to outside counsel related to product liability matters.
[4] | Settlements represent payments made to plaintiffs or allegedly injured parties in exchange for a full and complete release of liability.

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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