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Goodwill And Intangible Assets (Changes in Carrying Amounts) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Goodwill [Line Items] |  |
Balance at beginning of period | $ 1,558 | $ 1,654
Effect of foreign currency translation | 301 | (96)
Balance at end of period | 1,859 | 1,558
Century Casinos [Member] |  |
Goodwill [Line Items] |  |
Balance at beginning of period | 108 | 108
Effect of foreign currency translation | 0 | 0
Balance at end of period | 108 | 108
Casinos Poland Ltd [Member] |  |
Goodwill [Line Items] |  |
Balance at beginning of period | 1,450 | 1,546
Effect of foreign currency translation | 301 | (96)
Balance at end of period | $ 1,751 | $ 1,450

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References No definition available. + Details
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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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