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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Non-controlling Interest (Details) | Dec. 31, 2021
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CEGL [Member] |
Non-controlling Interest [Abstract] |
Percentage of ownership interest of subsidiaries | 100.00%

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- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_NoncontrollingInterestAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_OwnershipAxis=cenn_CENNTROELECTRICGROUPLIMITEDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |