Applicable income tax rate for an entity during the reporting period.

No definition available.

Name:	cnet_ApplicableIncomeTaxRate
Namespace Prefix:	cnet_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of deferred tax liabilities reversed.

+ References

No definition available.

+ Details

Name:	cnet_DeferredTaxLiabilitiesReversal
Namespace Prefix:	cnet_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the enterprise income tax rate in PRC

+ References

No definition available.

+ Details

Name:	cnet_EnterpriseIncomeTaxRateInPRC
Namespace Prefix:	cnet_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents income tax withholding rate pursuant to EIT law.

+ References

No definition available.

+ Details

Name:	cnet_IncomeTaxWithholdingRatePursuantToEITLaw
Namespace Prefix:	cnet_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- References

No definition available.

+ Details

Name:	cnet_Note17TaxationDetailsLineItems
Namespace Prefix:	cnet_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents PRC value added tax rate for modern service provided.

+ References

No definition available.

+ Details

Name:	cnet_PRCValueAddedTaxRateForModernServiceProvided
Namespace Prefix:	cnet_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents PRC value added tax rate for modern service provided by small scale tax payer.

+ References

No definition available.

+ Details

Name:	cnet_PRCValueAddedTaxRateForModernServiceProvidedSmallScaleTaxPayer
Namespace Prefix:	cnet_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Reflect PRC value added tax surcharge rate.

+ References

No definition available.

+ Details

Name:	cnet_PRCValueAddedTaxSurchargeRate
Namespace Prefix:	cnet_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of profits which are assessable.

+ References

No definition available.

+ Details

Name:	cnet_ProfitsAssessable
Namespace Prefix:	cnet_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the reduction in applicable EIT rate

+ References

No definition available.

+ Details

Name:	cnet_ReductionInApplicableEITRate
Namespace Prefix:	cnet_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting and classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=75116654&loc=d3e31917-109318

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=75116654&loc=d3e31931-109318

+ Details

Name:	us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of current and deferred federal income tax expense (benefit) attributable to income (loss) from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32672-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Income Tax Expense (or Benefit)
-URI http://asc.fasb.org/extlink&oid=6515339

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32559-109319

+ Details

Name:	us-gaap_OperatingLossCarryforwards
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of other income tax expense (benefit).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32639-109319

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32672-109319

+ Details

Name:	us-gaap_OtherTaxExpenseBenefit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=75116654&loc=d3e32123-109318

+ Details

Name:	us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_TaxCreditCarryforwardAxis=cnet_AmortizationOfAcquiredIntangibleAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=us-gaap_ParentCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=cnet_PRCSubsidiaryAndVIEsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=cnet_PRCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=cnet_ScenarioAfterDeductingTheVATPaidForTheServicesFromSuppliersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=cnet_ScenarioWithoutAnyDeductionOfVATPaidForTheServicesFromSuppliersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_NatureOfExpenseAxis=cnet_ProvisionOfModernServicesSmallScaleTaxPayerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=cnet_OtherPRCOperatingEntitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=cnet_BusinessOpportunityOnlineMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=cnet_BusinessOpportunityOnlineHubeiMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=cnet_StandardRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=cnet_PreferentialEITRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=cnet_BritishVirginIslandsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=cnet_HongKongMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=cnet_TaxTreatyAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note 17 - Taxation (Details) - USD ($)	3 Months Ended		12 Months Ended
Note 17 - Taxation (Details) - USD ($)	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2012	Dec. 31, 2015	Dec. 31, 2014
Note 17 - Taxation (Details) [Line Items]
Federal Income Tax Expense (Benefit), Continuing Operations (in Dollars)	$ 0
Profits, Assessable (in Dollars)	$ 0
Income Tax Withholding Rate Pursuant to EIT Law	10.00%
Deferred Tax Liabilities, Reversal (in Dollars)	$ (30,000)
Deferred Tax Assets, Net, Noncurrent (in Dollars)	1,556,000			$ 1,550,000
Amortization of Acquired Intangible Assets [Member]
Note 17 - Taxation (Details) [Line Items]
Deferred Tax Liabilities, Reversal (in Dollars)	30,000
Parent Company [Member]
Note 17 - Taxation (Details) [Line Items]
Operating Loss Carryforwards (in Dollars)	15,488,000			14,903,000
PRC Subsidiary and VIEs [Member]
Note 17 - Taxation (Details) [Line Items]
Operating Loss Carryforwards (in Dollars)	16,455,000			$ 15,657,000
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount (in Dollars)	160,000	$ 80,000
Deferred Tax Assets, Net, Noncurrent (in Dollars)	$ 35,000
Minimum [Member]
Note 17 - Taxation (Details) [Line Items]
PRC Value Added Tax Surcharge Rate	12.00%
Maximum [Member]
Note 17 - Taxation (Details) [Line Items]
PRC Value Added Tax Surcharge Rate	14.00%
PRC [Member]
Note 17 - Taxation (Details) [Line Items]
Enterprise Income Tax Rate in PRC	25.00%
PRC Value Added Tax Rate for Modern Service Provided	6.00%
PRC [Member] \| Scenario, After Deducting the VAT Paid for the Services from Suppliers [Member]
Note 17 - Taxation (Details) [Line Items]
PRC Value Added Tax Rate for Modern Service Provided	6.00%	6.00%
PRC [Member] \| Scenario Without any Deduction of VAT Paid for the Services from Suppliers [Member]
Note 17 - Taxation (Details) [Line Items]
PRC Value Added Tax Rate for Modern Service Provided Small Scale Tax Payer	3.00%	3.00%
PRC [Member] \| Provision of Modern Services Small Scale Tax Payer [Member]
Note 17 - Taxation (Details) [Line Items]
PRC Value Added Tax Rate for Modern Service Provided Small Scale Tax Payer	3.00%
PRC [Member] \| Other PRC Operating Entities [Member]
Note 17 - Taxation (Details) [Line Items]
Applicable Income Tax Rate	25.00%	25.00%
PRC [Member] \| Business Opportunity Online [Member]
Note 17 - Taxation (Details) [Line Items]
Applicable Income Tax Rate	15.00%	15.00%
Enterprise Income Tax Rate in PRC					15.00%
PRC [Member] \| Business Opportunity Online Hubei [Member]
Note 17 - Taxation (Details) [Line Items]
Applicable Income Tax Rate	25.00%	12.50%
Reduction in Applicable EIT Rate			50.00%
PRC [Member] \| Business Opportunity Online Hubei [Member] \| Standard Rate [Member]
Note 17 - Taxation (Details) [Line Items]
Enterprise Income Tax Rate in PRC			25.00%
PRC [Member] \| Business Opportunity Online Hubei [Member] \| Preferential EIT Rate [Member]
Note 17 - Taxation (Details) [Line Items]
Enterprise Income Tax Rate in PRC			12.50%
PRC [Member] \| Minimum [Member] \| Business Opportunity Online [Member]
Note 17 - Taxation (Details) [Line Items]
Enterprise Income Tax Rate in PRC				15.00%
British Virgin Islands [Member]
Note 17 - Taxation (Details) [Line Items]
Other Tax Expense (Benefit) (in Dollars)	$ 0
Hong Kong [Member]
Note 17 - Taxation (Details) [Line Items]
Federal Income Tax Expense (Benefit), Continuing Operations (in Dollars)	0
Profits, Assessable (in Dollars)	0
Other Tax Expense (Benefit) (in Dollars)	$ 0
Tax Treaty Agreement [Member]
Note 17 - Taxation (Details) [Line Items]
Income Tax Withholding Rate Pursuant to EIT Law	5.00%