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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_SegmentReportingInformationLineItems
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Name:	srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
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Name:	srt_StatementGeographicalAxis=country_CN
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Name:	srt_StatementGeographicalAxis=caas_OtherForeignCountriesMember
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Name:	us-gaap_StatementBusinessSegmentsAxis=caas_HenglongSegmentMember
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Data Type:	na
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Name:	us-gaap_StatementBusinessSegmentsAxis=caas_JiulongSegmentMember
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Data Type:	na
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Name:	us-gaap_StatementBusinessSegmentsAxis=caas_WuhuSegmentMember
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Data Type:	na
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Name:	us-gaap_StatementBusinessSegmentsAxis=caas_HubeiHenglongSegmentMember
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Name:	us-gaap_StatementBusinessSegmentsAxis=caas_HenglongKybSegmentMember
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Name:	us-gaap_StatementBusinessSegmentsAxis=caas_BrazilHenglongSegmentMember
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