Description Of Business And Basis Of Presentation (Impact Of Corrections On Consolidated Financial Statements) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended												12 Months Ended
		Dec. 31, 2016		Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	[3]	Dec. 31, 2015		Sep. 30, 2015	Jun. 30, 2015	[4]	Mar. 31, 2015	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts payable														$ (196)		$ (396)		$ 798
Net cash provided by operating activities														22,257		19,646		9,081
Purchases of property and equipment														(7,104)		(18,875)		(17,856)
Net cash used in investing activities														(26,829)		(18,177)		(18,265)
Purchase of property, plant and equipment on account														479		1,211		1,545
Capital expenditures														16,646	[1]	18,875		17,856
Receivables, net		$ 4,706						$ 2,620						4,706		2,620
Total Current Assets		45,948						33,881						45,948		33,881
Total Assets		217,838						186,424						217,838		186,424
Taxes payable		4,661						4,200						4,661		4,200
Total Current Liabilities		28,608						23,129						28,608		23,129
Total Liabilities		79,254						59,637						79,254		59,637
Retained earnings		66,386						57,171						66,386		57,171
Accumulated other comprehensive loss		(12,609)						(12,683)						(12,609)		(12,683)
Total Century Casinos, Inc. shareholders’ equity		132,196						122,050						132,196		122,050
Non-controlling interest		6,388						4,737						6,388		4,737
Total Equity		138,584						126,787						138,584		126,787		122,426		$ 129,450
Total Liabilities and Equity		217,838						186,424						217,838		186,424
Other														10,416		8,201		5,525
Gross revenue														148,177		142,183		128,038
Net operating revenue		36,279	[2]	$ 34,526	$ 35,201	$ 33,226		31,930	[3]	$ 33,526	$ 37,875		$ 30,405	139,234	[5]	133,734	[5]	120,048	[5]
Earnings from operations		3,706	[2]	3,835	4,541	4,082		1,775	[3]	4,082	7,839		2,100	16,165		15,796		2,657
Earnings before income taxes														15,600		14,645		418
Income taxes (benefit)														1,787		1,654		1,507
Net earnings (loss)		4,334	[2]	2,413	4,326	2,740		738	[3]	3,139	7,619		1,497	13,813		12,991		(1,089)
Net (earnings) loss attributable to non-controlling interests														(4,598)		(1,471)		2,321
Net earnings attributable to Century Casinos, Inc. shareholders		2,798	[2]	1,887	2,249	2,281		352	[3]	2,728	6,597		1,845	9,215		$ 11,520		1,232
Basic and Diluted																$ 0.47
Foreign currency translation adjustments														(390)		$ (9,853)		(6,685)
Other comprehensive loss														(390)		(9,853)		(6,685)
Comprehensive income (loss)														13,423		3,138		(7,774)
Foreign currency translation adjustments														464		941		1,041
Comprehensive income (loss) attributable to Century Casinos, Inc. shareholders														9,289		2,608		(4,412)
Net earnings		4,334	[2]	$ 2,413	$ 4,326	$ 2,740		738	[3]	$ 3,139	$ 7,619		$ 1,497	13,813		12,991		(1,089)
Foreign currency translation adjustment														(390)		(9,853)		(6,685)
Total Balance At December 31, 2015		138,584						126,787						138,584		126,787		122,426		129,450
Receivables, net														(1,417)		(1,139)		(177)
Taxes payable														(1,350)		(725)		(1,025)
Effect of Exchange Rate Changes on Cash														(1,514)		(1,264)		(759)
Non-controlling interests														4,598		1,471		(2,321)
Adjusted EBITDA														25,762		22,798		12,850
Corporate and Other [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Capital expenditures														611	[1]	407		1,367
Net operating revenue	[5]													3,972		7,885		7,551
Earnings before income taxes														(7,133)		(4,064)		(7,660)
Income taxes (benefit)														(2,089)		(2,872)		(1,275)
Net (earnings) loss attributable to non-controlling interests														0		0		0
Net earnings attributable to Century Casinos, Inc. shareholders														(5,044)		(1,192)		(6,385)
Non-controlling interests														0		0		0
Adjusted EBITDA														(5,836)		(5,370)		(5,715)
Canada [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Capital expenditures														13,536	[1]	15,637		11,685
Net operating revenue	[5]													50,237		45,203		34,599
Earnings before income taxes														12,381		9,384		6,150
Income taxes (benefit)														796		1,929		1,971
Net (earnings) loss attributable to non-controlling interests														(3,137)		(23)		2,267
Net earnings attributable to Century Casinos, Inc. shareholders														8,448		7,432		6,446
Non-controlling interests														3,137		23		(2,267)
Adjusted EBITDA														16,262		14,687		10,354
United States [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Capital expenditures														1,165	[1]	1,580		1,768
Net operating revenue	[5]													30,135		28,438		26,707
Earnings before income taxes														4,705		3,842		2,069
Income taxes (benefit)														1,815		1,461		786
Net (earnings) loss attributable to non-controlling interests														0		0		0
Net earnings attributable to Century Casinos, Inc. shareholders														2,890		2,381		1,283
Non-controlling interests														0		0		0
Adjusted EBITDA														7,197		6,401		4,528
Poland [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Capital expenditures														1,334	[1]	1,251		3,036
Net operating revenue	[5]													54,890		52,208		51,191
Earnings before income taxes														5,647		5,483		(141)
Income taxes (benefit)														1,265		1,136		25
Net (earnings) loss attributable to non-controlling interests														(1,461)		(1,448)		54
Net earnings attributable to Century Casinos, Inc. shareholders														2,921		2,899		(112)
Non-controlling interests														1,461		1,448		(54)
Adjusted EBITDA														8,139		7,080		3,683
As Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts payable																		(961)
Net cash provided by operating activities																19,674		7,322
Purchases of property and equipment																		(16,097)
Net cash used in investing activities																		(16,506)
Purchase of property, plant and equipment on account																		1,961
Capital expenditures																		16,097
Receivables, net								3,279								3,279
Total Current Assets								34,540								34,540
Total Assets								187,083								187,083
Taxes payable								4,371								4,371
Total Current Liabilities								23,300								23,300
Total Liabilities								59,808								59,808
Retained earnings								57,558								57,558
Accumulated other comprehensive loss								(12,704)								(12,704)
Total Century Casinos, Inc. shareholders’ equity								122,416								122,416
Non-controlling interest								4,859								4,859
Total Equity								127,275								127,275
Total Liabilities and Equity								187,083								187,083
Other																8,898
Gross revenue																142,880
Net operating revenue																134,431
Earnings from operations																16,493
Earnings before income taxes																15,342
Income taxes (benefit)																1,835
Net earnings (loss)																13,507
Net (earnings) loss attributable to non-controlling interests																(1,600)
Net earnings attributable to Century Casinos, Inc. shareholders																$ 11,907
Basic and Diluted																$ 0.49
Foreign currency translation adjustments																$ (9,881)
Other comprehensive loss																(9,881)
Comprehensive income (loss)																3,626
Foreign currency translation adjustments																948
Comprehensive income (loss) attributable to Century Casinos, Inc. shareholders																2,974
Net earnings																13,507
Foreign currency translation adjustment																(9,881)
Total Balance At December 31, 2015								127,275								127,275
Receivables, net																(1,798)
Taxes payable																(554)
Effect of Exchange Rate Changes on Cash																(1,292)
Non-controlling interests																1,600
As Previously Reported [Member] | Corporate and Other [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Capital expenditures																		1,331
As Previously Reported [Member] | Canada [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Capital expenditures																		11,190
Net operating revenue																45,900
Earnings before income taxes																10,081
Income taxes (benefit)																2,110
Net (earnings) loss attributable to non-controlling interests																(152)
Net earnings attributable to Century Casinos, Inc. shareholders																7,819
Non-controlling interests																152
Adjusted EBITDA																15,384
As Previously Reported [Member] | United States [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Capital expenditures																		834
As Previously Reported [Member] | Poland [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Capital expenditures																		2,742
Correction [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts payable																		1,759
Net cash provided by operating activities																(28)		1,759
Purchases of property and equipment																		(1,759)
Net cash used in investing activities																		(1,759)
Purchase of property, plant and equipment on account																		(416)
Capital expenditures																		1,759
Receivables, net								(659)								(659)
Total Current Assets								(659)								(659)
Total Assets								(659)								(659)
Taxes payable								(171)								(171)
Total Current Liabilities								(171)								(171)
Total Liabilities								(171)								(171)
Retained earnings								(387)								(387)
Accumulated other comprehensive loss								21								21
Total Century Casinos, Inc. shareholders’ equity								(366)								(366)
Non-controlling interest								(122)								(122)
Total Equity								(488)								(488)
Total Liabilities and Equity								(659)								(659)
Other																(697)
Gross revenue																(697)
Net operating revenue																(697)
Earnings from operations																(697)
Earnings before income taxes																(697)
Income taxes (benefit)																(181)
Net earnings (loss)																(516)
Net (earnings) loss attributable to non-controlling interests																129
Net earnings attributable to Century Casinos, Inc. shareholders																$ (387)
Basic and Diluted																$ (0.02)
Foreign currency translation adjustments																$ 28
Other comprehensive loss																28
Comprehensive income (loss)																(488)
Foreign currency translation adjustments																(7)
Comprehensive income (loss) attributable to Century Casinos, Inc. shareholders																(366)
Net earnings																(516)
Foreign currency translation adjustment																28
Total Balance At December 31, 2015								(488)								(488)
Receivables, net																659
Taxes payable																(171)
Effect of Exchange Rate Changes on Cash																28
Non-controlling interests																(129)
Correction [Member] | Corporate and Other [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Capital expenditures																		36
Correction [Member] | Canada [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Capital expenditures																		495
Net operating revenue																(697)
Earnings before income taxes																(697)
Income taxes (benefit)																(181)
Net (earnings) loss attributable to non-controlling interests																129
Net earnings attributable to Century Casinos, Inc. shareholders																(387)
Non-controlling interests																(129)
Adjusted EBITDA																(697)
Correction [Member] | United States [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Capital expenditures																		934
Correction [Member] | Poland [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Capital expenditures																		294
Accumulated Other Comprehensive Income (Loss) [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total Equity		(12,609)						(12,683)						(12,609)		(12,683)		(3,636)		2,008
Net earnings (loss)														0		0		0
Foreign currency translation adjustments														74		(8,912)		(5,644)
Net earnings														0		0		0
Foreign currency translation adjustment														74		(8,912)		(5,644)
Total Balance At December 31, 2015		(12,609)						(12,683)						(12,609)		(12,683)		(3,636)		2,008
Accumulated Other Comprehensive Income (Loss) [Member] | As Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total Equity								(12,704)								(12,704)
Foreign currency translation adjustments																(8,933)
Foreign currency translation adjustment																(8,933)
Total Balance At December 31, 2015								(12,704)								(12,704)
Accumulated Other Comprehensive Income (Loss) [Member] | Correction [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total Equity								21								21
Foreign currency translation adjustments																21
Foreign currency translation adjustment																21
Total Balance At December 31, 2015								21								21
Retained Earnings [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total Equity		66,386						57,171						66,386		57,171		45,651		44,419
Net earnings (loss)														9,215		11,520		1,232
Foreign currency translation adjustments														0		0		0
Net earnings														9,215		11,520		1,232
Foreign currency translation adjustment														0		0		0
Total Balance At December 31, 2015		66,386						57,171						66,386		57,171		45,651		44,419
Retained Earnings [Member] | As Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total Equity								57,558								57,558
Net earnings (loss)																11,907
Net earnings																11,907
Total Balance At December 31, 2015								57,558								57,558
Retained Earnings [Member] | Correction [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total Equity								(387)								(387)
Net earnings (loss)																(387)
Net earnings																(387)
Total Balance At December 31, 2015								(387)								(387)
Total Century Casinos Shareholders' Equity [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total Equity		132,196						122,050						132,196		122,050		118,428		121,809
Net earnings (loss)														9,215		11,520		1,232
Foreign currency translation adjustments														74		(8,912)		(5,644)
Net earnings														9,215		11,520		1,232
Foreign currency translation adjustment														74		(8,912)		(5,644)
Total Balance At December 31, 2015		132,196						122,050						132,196		122,050		118,428		121,809
Total Century Casinos Shareholders' Equity [Member] | As Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total Equity								122,416								122,416
Net earnings (loss)																11,907
Foreign currency translation adjustments																(8,933)
Net earnings																11,907
Foreign currency translation adjustment																(8,933)
Total Balance At December 31, 2015								122,416								122,416
Total Century Casinos Shareholders' Equity [Member] | Correction [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total Equity								(366)								(366)
Net earnings (loss)																(387)
Foreign currency translation adjustments																21
Net earnings																(387)
Foreign currency translation adjustment																21
Total Balance At December 31, 2015								(366)								(366)
Noncontrolling Interest [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total Equity		6,388						4,737						6,388		4,737		3,998		7,641
Net earnings (loss)														4,598		1,471		(2,321)
Foreign currency translation adjustments														(464)		(941)		(1,041)
Net earnings														4,598		1,471		(2,321)
Foreign currency translation adjustment														(464)		(941)		(1,041)
Total Balance At December 31, 2015		$ 6,388						4,737						$ 6,388		4,737		$ 3,998		$ 7,641
Noncontrolling Interest [Member] | As Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total Equity								4,859								4,859
Net earnings (loss)																1,600
Foreign currency translation adjustments																(948)
Net earnings																1,600
Foreign currency translation adjustment																(948)
Total Balance At December 31, 2015								4,859								4,859
Noncontrolling Interest [Member] | Correction [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total Equity								(122)								(122)
Net earnings (loss)																(129)
Foreign currency translation adjustments																7
Net earnings																(129)
Foreign currency translation adjustment																7
Total Balance At December 31, 2015								$ (122)								$ (122)

[1] Capital expenditures for Canada includes property and equipment of $9.5 million related to the Apex Acquisition (Note 3).

[2] In October 2016, operations began at CSA.

[3] The Company has adjusted first quarter 2016 and fourth quarter 2015 for the correction of pari-mutuel revenue discussed in Note 1.

[4] In April 2015, operations began at CDR's casino and racetrack. In June 2015, the Company recorded $3.4 million in net operating revenue and net earnings from the consideration for the early termination of its Oceania and Regent concession agreements.

[5] Net operating revenue for Corporate and Other primarily relates to the Company's cruise ship operations