Note 6 - Other Receivables, Net (Details) - Other Receivables, Net (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Note 6 - Other Receivables, Net (Details) - Other Receivables, Net [Line Items]
Allowance for doubtful debts	$ (853)	$ (856)
Other receivables, net	8,160us-gaap_OtherReceivablesNetCurrent	8,392us-gaap_OtherReceivablesNetCurrent
Term deposit interest receivable	85us-gaap_InterestReceivable	56us-gaap_InterestReceivable
Short-term Loan Made for Marketing Campaign [Member]
Note 6 - Other Receivables, Net (Details) - Other Receivables, Net [Line Items]
Other receivables, gross		65
Staff Advances [Member]
Note 6 - Other Receivables, Net (Details) - Other Receivables, Net [Line Items]
Other receivables, gross	104	73
TV Advertisement Deposit and Prepayment [Member]
Note 6 - Other Receivables, Net (Details) - Other Receivables, Net [Line Items]
Other receivables, gross	7,808	8,034
Overdue Deposits [Member]
Note 6 - Other Receivables, Net (Details) - Other Receivables, Net [Line Items]
Other receivables, gross	$ 1,016	$ 1,020

Name:	cnet_Note6OtherReceivablesNetDetailsOtherReceivablesNetLineItems
Namespace Prefix:	cnet_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

A valuation allowance for doubtful other receivables due to an entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible and not separately disclosed.

+ References

No definition available.

+ Details

Name:	us-gaap_AllowanceForDoubtfulOtherReceivablesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

+ 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 210.5-02.8)

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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 8

-Article 5

+ Details

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

- Definition

Amounts of other receivables due within one year of the balance sheet date (or one operating cycle, if longer) from third parties or arising from transactions not separately disclosed.

+ References

No definition available.

+ Details

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

- Definition

The carrying amount of other receivables, net, due within one year of the balance sheet date (or one operating cycle, if longer) from third parties or arising from transactions not separately disclosed.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=cnet_OverdueDepositsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=cnet_ShortTermLoanMadeForMarketingCampaignMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=cnet_StaffAdvancesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=cnet_TVAdvertisementDepositAndPrepaymentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: