<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2023"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="cnty-20230807.xsd" xlink:type="simple"/>
    <context id="Duration_8_7_2023_To_8_7_2023">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000911147</identifier>
        </entity>
        <period>
            <startDate>2023-08-07</startDate>
            <endDate>2023-08-07</endDate>
        </period>
    </context>
    <dei:AmendmentFlag
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-22f3146e-e960-4557-bd0c-babae632a8f5">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-30e659a6-53b5-4417-bfc6-9763fd9a907c">0000911147</dei:EntityCentralIndexKey>
    <dei:DocumentType
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-7405fc07-0d5a-4bcd-92f5-40e5f75687c1">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-b10f743c-e499-4868-8c8e-ea5b1b95ca70">2023-08-07</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-d11673f0-9ea6-4746-98ad-bcdb9c317015">CENTURY CASINOS, INC.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-3f15f1b8-96aa-4a9c-82d0-83618233b26b">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-6a26539d-3590-4bf0-a2b0-ce6e62dc477f">0-22900</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-86b1d572-ed46-4f75-8e45-2a165502851e">84-1271317</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-f918f801-82d5-461a-9aa9-d16057bf66d3">455 E. Pikes Peak Ave.</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-5c2f8150-80ce-4f3d-8f2b-a92653a469ac">Suite 210</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-593403a2-0102-49f9-85a1-ebdfb7adb36f">Colorado Springs</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-ce3d5b1d-3dc7-495b-bfd4-dce2bae31671">CO</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-6aa28cbd-1557-413b-bea7-65a8118b79dc">80903</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-d0894e93-97a5-4f2f-a58c-d8669633342f">719</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-90db8a9b-9b5f-4bcb-b43d-a28c1138e757">527-8300</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-71e09dfe-fdf1-4c93-914f-f8747cafe575">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-a53b8b5f-4a24-4ee8-a935-c22a4d58dc0d">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-40424bef-f8c9-44af-ac84-5214b5e3d5b7">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-3f77ccbf-e4a7-4b68-91a5-1f64b3540707">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-12ffb9a7-c444-4ceb-ae14-d3859ed2fec4">Common Stock, $0.01 Per Share Par Value</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-c8dea0dc-2a40-428a-a38e-0353151f4297">CNTY</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-53bbe42f-1052-4ec9-8142-de10bb6df8e1">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="Duration_8_7_2023_To_8_7_2023"
      id="ct-nonNumeric-1a67e15f-8c51-4ed3-9932-4b62046316c0">false</dei:EntityEmergingGrowthCompany>
</xbrl>
