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Income Taxes (Summary of Valuation Allowance) (Details) - Deferred Tax Valuation Allowance - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance as of January 1 | $ 111 | $ 298 | $ 206
Cost charged to the tax provision | 13 | 70 | 100
Currency translation | (41) | (248) | (10)
Currency translation | 0 | (9) | 2
Reclassification from discontinued operations upon sale of industrial group | 26,498 | 0 | 0
Balance as of December 31 | $ 26,581 | $ 111 | $ 298

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- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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=120395691&loc=d3e24092-122690 + Details
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