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CONCENTRATION OF RISKS (Narrative) (Details) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2012 item | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Concentration Risk [Line Items] |  |  |  |
Number of entities approved by the MOF to conduct online sales of sports lottery products | 2 wbai_NumberOfEntitiesApprovedByMinistryOfFinanceToConductOnlineSalesOfSportsLotteryProducts |  |  |
Service Fees [Member] | Concentration of suppliers [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Percentage of service fees |  | 79.10%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = wbai_ServiceFeesMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_SupplierConcentrationRiskMember | 87.30%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = wbai_ServiceFeesMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_SupplierConcentrationRiskMember | 98.30%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = wbai_ServiceFeesMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_SupplierConcentrationRiskMember
Service Fees [Member] | Concentration of serviced lottery products [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Percentage of service fees |  | 93.20%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = wbai_ServiceFeesMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_ProductConcentrationRiskMember | 95.90%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = wbai_ServiceFeesMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_ProductConcentrationRiskMember | 88.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = wbai_ServiceFeesMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_ProductConcentrationRiskMember

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
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- Definition The number of entities approved by the Ministry of Finance to conduct online sales of sports lottery products. + References No definition available. + Details
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