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Note 8 - Long-term Investments (Details Textual) - Local Chain Xi’an [Member] ¥ in Thousands, $ in Thousands | Jun. 30, 2019 USD ($) | Jun. 30, 2019 CNY (¥)
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Equity Securities without Readily Determinable Fair Value, Amount | $ 40 | ¥ 250
Equity Securities without Readily Determinable Fair Value, Percent | 4.90% | 4.90%

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- Definition Percentage of investment in equity security without readily determinable fair value. + References No definition available. + Details
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Namespace Prefix: | cnet_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Amount of investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117539-209714 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |