Long-Term Debt (Narrative) (Details) $ in Thousands, PLN in Millions, CAD in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017 CAD item	Jun. 30, 2016 CAD	Jun. 30, 2017 CAD item	Jun. 30, 2017 PLN item	Jun. 30, 2017 USD ($) item	Jun. 30, 2016 USD ($)	Jun. 30, 2017 PLN item	Jun. 30, 2017 USD ($) item	Dec. 31, 2016 PLN	Dec. 31, 2016 USD ($)	Sep. 30, 2016 CAD	Apr. 30, 2015 USD ($)	Aug. 15, 2014 CAD	May 31, 2012 CAD
Debt Instrument [Line Items]
Amortization of deferred financing costs | $					$ 86	$ 57
Amount outstanding | $								$ 54,985		$ 56,021
total debt | $								54,675		$ 55,609
Casinos Poland Ltd [Member]
Debt Instrument [Line Items]
Amount outstanding | PLN							PLN 0.0		PLN 0.0
Deposits or bank guarantees for payment of casino jackpots and gaming tax obligations under gaming law | PLN							3.6
total debt							PLN 0.3	$ 100
Century Downs Racetrack And Casino [Member]
Debt Instrument [Line Items]
Options to Purchase Land | item			4	4	4
Number of capital lease agreements | item	6		6				6	6
Capital lease agreements	CAD 0.5		CAD 0.5					$ 400
Interest rate on financing obligation			0.00%	0.00%	0.00%
Century Resorts Alberta [Member]
Debt Instrument [Line Items]
Number of capital lease agreements | item	2		2				2	2
Capital lease agreements	CAD 0.2		CAD 0.2					$ 200
Capital Lease- CAL [Member]
Debt Instrument [Line Items]
Capital lease agreements	0.1		0.1					100
Capital Lease CSA [Member]
Debt Instrument [Line Items]
Capital lease agreements	CAD 0.1		CAD 0.1					$ 100
BMO Credit Agreement [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity											CAD 69.2		CAD 39.1	CAD 28.0
EBITDA			3.00	3.00	3.00
Fixed Charge Coverage Ratio	1.20		1.20				1.20	1.20
Required minimum equity balance under debt covenant	CAD 50.0		CAD 50.0
Required maximum capital expenditure limit under debt covenant			4.0
Line of credit facility	50.9		50.9					$ 39,200
Line of credit facility amount available for borrowing	5.8		5.8					$ 4,500
Standby fees	0.1	CAD 0.1			$ 100	100
Line of credit facility amount that cannot be reborrowed once repaid	CAD 63.9		CAD 63.9
BMO Credit Agreement [Member] | Interest Rate Swap Liability [Member]
Debt Instrument [Line Items]
CDOR exchange rate	3.92		3.92				3.92	3.92
Notional Value	CAD 8.4		CAD 8.4									$ 6,500
Debt instrument maturity date			Aug. 01, 2019	Aug. 01, 2019	Aug. 01, 2019
BMO Credit Agreement [Member] | Interest Rate Swap Second Agreement [Member]
Debt Instrument [Line Items]
CDOR exchange rate	3.89		3.89				3.89	3.89
Notional Value	CAD 8.4		CAD 8.4					$ 6,500
Debt instrument maturity date			Aug. 01, 2019	Aug. 01, 2019	Aug. 01, 2019
BMO Credit Agreement [Member] | Interest Rate Swap Third Agreement [Member]
Debt Instrument [Line Items]
CDOR exchange rate	4.08		4.08				4.08	4.08
Notional Value	CAD 13.9		CAD 13.9					$ 10,700
Debt instrument maturity date			Dec. 01, 2021	Dec. 01, 2021	Dec. 01, 2021
First Loan With mBank [Member] | Casinos Poland Ltd [Member]
Debt Instrument [Line Items]
Debt ratio	80		80				80	80
Debt instrument term			3 years	3 years	3 years
Interest rate percentage points above WIBOR			1.70%	1.70%	1.70%
Second Loan With mBank [Member] | Casinos Poland Ltd [Member]
Debt Instrument [Line Items]
Line of credit facility amount available for borrowing | $								$ 0
Amount outstanding							PLN 0.3	$ 100
Required liquidity ratio under debt covenant	0.5		0.5				0.5	0.5
Line Of Credit With BPH Bank [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity | PLN							PLN 13.0
Line of credit amount that can only be used to secure bank guarantees | PLN				PLN 2.0
Expiration date			Feb. 11, 2018	Feb. 11, 2018	Feb. 11, 2018
Line Of Credit With BPH Bank [Member] | Casinos Poland Ltd [Member]
Debt Instrument [Line Items]
Line of credit facility | PLN							0.0
Line of credit facility amount available for borrowing							11.0	$ 3,000
Interest rate percentage points above WIBOR			1.85%	1.85%	1.85%
Guarantee From mBank [Member] | Casinos Poland Ltd [Member]
Debt Instrument [Line Items]
Expiration date			Oct. 31, 2019	Oct. 31, 2019	Oct. 31, 2019
Bank guarantee issued for payment of casino jackpots and gaming tax obligations							3.6	1,000
Deposits maintained for payment of casino jackpots and gaming tax obligations							PLN 1.4	400
Capital Leases [Member]
Debt Instrument [Line Items]
Amount outstanding | $								635
Credit Facility A [Member] | BMO Credit Agreement [Member]
Debt Instrument [Line Items]
Term of credit agreement			5 years	5 years	5 years
Line of credit facility	CAD 1.1		CAD 1.1
Expiration date			Aug. 01, 2019	Aug. 01, 2019	Aug. 01, 2019
Line of credit facility amount available for borrowing	1.1		CAD 1.1					$ 800
Credit Facility B [Member] | BMO Credit Agreement [Member]
Debt Instrument [Line Items]
Term of credit agreement			5 years	5 years	5 years
Line of credit facility	24.1		CAD 24.1
Expiration date			Aug. 01, 2019	Aug. 01, 2019	Aug. 01, 2019
Line of credit facility amount available for borrowing	CAD 0.0		CAD 0.0
Credit Facility B [Member] | BMO Credit Agreement [Member] | Casinos Poland Ltd [Member]
Debt Instrument [Line Items]
Additional ownership acquired	33.30%		33.30%				33.30%	33.30%
Credit Facility C [Member] | BMO Credit Agreement [Member]
Debt Instrument [Line Items]
Term of credit agreement			5 years	5 years	5 years
Line of credit facility	CAD 11.0		CAD 11.0
Expiration date			Aug. 01, 2019	Aug. 01, 2019	Aug. 01, 2019
Line of credit facility amount available for borrowing	4.7		CAD 4.7					$ 3,600
Credit Facility D [Member] | BMO Credit Agreement [Member]
Debt Instrument [Line Items]
Term of credit agreement			5 years	5 years	5 years
Line of credit facility	30.0		CAD 30.0
Expiration date			Sep. 01, 2021	Sep. 01, 2021	Sep. 01, 2021
Line of credit facility amount available for borrowing	0.0		CAD 0.0
Credit Facility E [Member] | Treasury Risk Management Facility [Member]
Debt Instrument [Line Items]
Term of credit agreement			5 years	5 years	5 years
Line of credit facility	CAD 3.0		CAD 3.0					$ 2,300
Minimum [Member] | BMO Credit Agreement [Member]
Debt Instrument [Line Items]
Standby fees, percentage			0.50%	0.50%	0.50%
Maximum [Member] | BMO Credit Agreement [Member]
Debt Instrument [Line Items]
Standby fees, percentage			0.75%	0.75%	0.75%
Amortization of deferred financing costs | $					$ 100	$ 100
Century Downs Racetrack And Casino [Member]
Debt Instrument [Line Items]
Ownership percentage	75.00%		75.00%				75.00%	75.00%
Outstanding balance on financing obligation	CAD 19.5		CAD 19.5					$ 15,000