Note 8 - Prepayments and deposit to suppliers (Detail) - Prepayments and deposit to suppliers (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Prepayment and deposit to suppliers	$ 14,822	$ 14,596
Contract Execution Guarantees [Member]
Prepayment and deposit to suppliers	8,367	9,463
Prepayments to TV Ad and Internet Providers [Member]
Prepayment and deposit to suppliers	6,372	5,069
Other Deposits and Prepayments [Member]
Prepayment and deposit to suppliers	$ 83	$ 64

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