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Significant Accounting Policies (Narrative) (Details) $ in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2021 USD ($) | Dec. 31, 2021 CAD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2020 CAD ($) | Dec. 31, 2019 USD ($)
Significant Accounting Policies [Line Items] |  |  |  |  |
Restricted cash | $ 220 |  | $ 264 |  |
Accounts receivable expected to be collected period of the maturity date | 6 months | 6 months |  |  |
Accounts receivable written off after | 1 year | 1 year |  |  |
Marketing incentives and player club points allocated to gaming revenue | $ 39,000 |  | 30,300 |  | $ 15,300
Outstanding balance of promotional balance liability | 1,000 |  | 1,000 |  |
Advertising costs | 2,300 |  | 2,600 |  | $ 3,400
Canada [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Qualified payroll credits | 2,500 | $ 3.1 | 5,500 | $ 7.4 |
Qualified government rent subsidies reduced operating expenses | 1,300 | $ 1.6 | 400 | $ 0.5 |
Deposits And Other Related To Payments Of Prizes And Giveaways [Member] | Casinos Poland [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Restricted cash | 200 |  | 200 |  |
Deposits And Other Related To Insurance Policy [Member] | Maximum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Restricted cash | $ 100 |  | $ 100 |  |

X
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- Definition This element represents the outstanding balance of the promotional allowance liability. Promotional allowances are the estimated retail value of accommodations, food and beverage, and other services furnished to guests without charge. + References No definition available. + Details
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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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