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Note 11 - Intangible Assets, Net (Details) - Intangible Assets, Net (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2015 | Dec. 31, 2014
Intangible assets subject to amortization: |  |
Finite-lived intangible assets | $ 13,882 us-gaap_FiniteLivedIntangibleAssetsGross | $ 13,935 us-gaap_FiniteLivedIntangibleAssetsGross
Less: accumulated amortization | (4,046)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization | (3,704)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Less: accumulated impairment losses | (989)us-gaap_ImpairmentOfIntangibleAssetsFinitelived | (993)us-gaap_ImpairmentOfIntangibleAssetsFinitelived
Intangible assets, net | 8,847 us-gaap_IntangibleAssetsNetExcludingGoodwill | 9,238 us-gaap_IntangibleAssetsNetExcludingGoodwill
Domain Name [Member] |  |
Intangible assets not subject to amortization: |  |
Domain name | 1,572 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = cnet_DomainNameMember | 1,579 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = cnet_DomainNameMember
Contract Backlog [Member] |  |
Intangible assets subject to amortization: |  |
Finite-lived intangible assets | 202 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = cnet_ContractBacklogMember | 202 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = cnet_ContractBacklogMember
Customer Relationships [Member] |  |
Intangible assets subject to amortization: |  |
Finite-lived intangible assets | 3,531 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember | 3,545 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Noncompete Agreements [Member] |  |
Intangible assets subject to amortization: |  |
Finite-lived intangible assets | 1,397 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember | 1,402 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember
Software Technologies [Member] |  |
Intangible assets subject to amortization: |  |
Finite-lived intangible assets | 334 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = cnet_SoftwareTechnologiesMember | 335 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = cnet_SoftwareTechnologiesMember
SMEs Operation Management Applications [Member] |  |
Intangible assets subject to amortization: |  |
Finite-lived intangible assets | 5,257 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = cnet_SMEsOperationManagementApplicationsMember | 5,277 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = cnet_SMEsOperationManagementApplicationsMember
Cloud-computing Based Software Platforms [Member] |  |
Intangible assets subject to amortization: |  |
Finite-lived intangible assets | 1,511 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = cnet_CloudComputingBasedSoftwarePlatformsMember | 1,517 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = cnet_CloudComputingBasedSoftwarePlatformsMember
Other Computer Software [Member] |  |
Intangible assets subject to amortization: |  |
Finite-lived intangible assets | $ 78 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = cnet_OtherComputerSoftwareMember | $ 78 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = cnet_OtherComputerSoftwareMember

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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