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INVESTMENTS (Narrative) (Details) In Thousands, unless otherwise specified | 12 Months Ended | 1 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended |  |
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Dec. 31, 2014 USD ($) | Dec. 31, 2014 CNY | Dec. 31, 2013 CNY | Dec. 31, 2012 CNY | Jan. 31, 2014 Huanlelingdang [Member] Private companies [Member] USD ($) | Jan. 31, 2014 Huanlelingdang [Member] Private companies [Member] CNY | Dec. 31, 2014 Huanlelingdang [Member] Private companies [Member] CNY | Apr. 23, 2014 Hewei [Member] Private companies [Member] USD ($) | Apr. 23, 2014 Hewei [Member] Private companies [Member] CNY | Dec. 31, 2014 Hewei [Member] Private companies [Member] CNY | Dec. 31, 2014 Danhua [Member] Limited partnerships [Member] USD ($) | Jun. 12, 2014 Danhua [Member] Limited partnerships [Member] USD ($)
Cost method investments [Line items] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of cost method investments |  |  |  |  | 20.00%wbai_PercentageOfCostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_BeijingHuanlelingdangTechnologyCoLtdMember | 20.00%wbai_PercentageOfCostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_BeijingHuanlelingdangTechnologyCoLtdMember |  | 19.00%wbai_PercentageOfCostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_ShenzhenHeweiTechnologyCoLtdMember | 19.00%wbai_PercentageOfCostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_ShenzhenHeweiTechnologyCoLtdMember |  |  |
Amount of original cost of investments |  |  |  |  | $ 806 us-gaap_CostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_BeijingHuanlelingdangTechnologyCoLtdMember | 5,000 us-gaap_CostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_BeijingHuanlelingdangTechnologyCoLtdMember |  | $ 18 us-gaap_CostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_ShenzhenHeweiTechnologyCoLtdMember | 114 us-gaap_CostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_ShenzhenHeweiTechnologyCoLtdMember |  |  | $ 1,000 us-gaap_CostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_DanhuaCapitalLPMember
Impairement on investments | 0 us-gaap_AssetImpairmentCharges | 0 us-gaap_AssetImpairmentCharges | 0 us-gaap_AssetImpairmentCharges | 0 us-gaap_AssetImpairmentCharges |  |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_BeijingHuanlelingdangTechnologyCoLtdMember |  |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_ShenzhenHeweiTechnologyCoLtdMember |  |
Amount of Investment |  |  |  |  |  |  |  |  |  |  | 250 us-gaap_CostMethodInvestments / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_DanhuaCapitalLPMember |
Amount of unfunded investment commitment |  |  |  |  |  |  |  |  |  |  | $ 750 wbai_CostMethodInvestmentsUnfundedAmount / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_DanhuaCapitalLPMember |

X
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