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Advances payable (Details Textual) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Advance Payable [Line Items]
Advances payable	$ 2.0	$ 6.2

No definition available.

Name:	caas_AdvancePayableLineItems
Namespace Prefix:	caas_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The amount represent advances received from government as subsidy on interest on loans related to production facilities expansion.

No definition available.

Name:	caas_AdvancesPayable
Namespace Prefix:	caas_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant