Note 2 - Variable Interest Entities (Details Textual)	Dec. 31, 2020 CNY (¥)
PRC Operating Entities Business Operations, VIE [Member] \| Rise King WFOE [Member]
Exclusive Option Agreements, Option to Purchase Equity Interests, Price Per Equity Interest in Any Operating Entity	¥ 10

Represents the purchase price per equity interest in any operating entity, which the shareholders of another specified entity have the option to purchase under the Exclusive Option Agreements.

No definition available.

Name:	cnet_ExclusiveOptionAgreementsOptionToPurchaseEquityInterestsPricePerEquityInterestInAnyOperatingEntity
Namespace Prefix:	cnet_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant