Note 5 - Prepayments and Deposit to Suppliers, Net (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Prepayment and Deposit to Suppliers	$ 6,906	$ 2,154
License [Member]
Prepayment and Deposit to Suppliers	1,190
Software System Implementation and Training [Member]
Prepayment and Deposit to Suppliers	$ 130

Carrying amount as of the balance sheet date of capitalized payments for supplies which will be consumed in operations within one year or the normal operating cycle, if longer, and deposits to suppliers to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, which will be either consumed in operations or refunded within one year or the normal operating cycle, if longer.

No definition available.

Name:	cnet_PrepaymentAndDepositToSuppliers
Namespace Prefix:	cnet_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant