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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
	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					$ 806us-gaap_CostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_BeijingHuanlelingdangTechnologyCoLtdMember	5,000us-gaap_CostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_BeijingHuanlelingdangTechnologyCoLtdMember		$ 18us-gaap_CostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_ShenzhenHeweiTechnologyCoLtdMember	114us-gaap_CostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_ShenzhenHeweiTechnologyCoLtdMember			$ 1,000us-gaap_CostMethodInvestmentsOriginalCost / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_DanhuaCapitalLPMember
Impairement on investments	0us-gaap_AssetImpairmentCharges	0us-gaap_AssetImpairmentCharges	0us-gaap_AssetImpairmentCharges	0us-gaap_AssetImpairmentCharges			0us-gaap_AssetImpairmentCharges / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_BeijingHuanlelingdangTechnologyCoLtdMember			0us-gaap_AssetImpairmentCharges / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = wbai_PrivatelyHeldEntitesMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_ShenzhenHeweiTechnologyCoLtdMember
Amount of Investment											250us-gaap_CostMethodInvestments / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_DanhuaCapitalLPMember
Amount of unfunded investment commitment											$ 750wbai_CostMethodInvestmentsUnfundedAmount / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember / wbai_ScheduleOfCostMethodInvestmentEquityMethodInvesteeNameAxis = wbai_DanhuaCapitalLPMember

X

- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228

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- Definition

Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.12)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 325

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6872867&loc=d3e40691-111596



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 325

-SubTopic 20

-Section 35

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=29638308&loc=d3e40346-111594

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Original amount of cost-method investments at the acquisition date.

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Represents the amount of unfunded cost method investment commitment as of balance sheet date.

+ References

No definition available.

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- Definition

Represents the percentage of original amount of cost-method investments at the acquisition date.

+ References

No definition available.

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