Significant Accounting Policies (Narrative) (Details) $ in Thousands, $ in Millions	12 Months Ended
	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