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

X

- 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

X

- References

No definition available.

+ Details

Name:	us-gaap_NoncontrollingInterestAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

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