No definition available.

Name:	cenn_CommitmentForOperatingLeasesNotIncludedInOperatingLeaseLiabilityAbstract
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- Definition

Term of operating lease, rent abatement, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Area of land subject to a ground lease.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Date which lease or group of leases is set to expire, in YYYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseExpirationDate1
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Data Type:	xbrli:dateItemType
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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

Name:	us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis=cenn_JacksonvilleFacilityMember
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Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
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COMMITMENTS AND CONTINGENCIES, Commitment for Operating Leases not Included in Operating Lease Liability (Details)	Jan. 20, 2022 USD ($) ft²	Dec. 24, 2021 USD ($) ft²	Dec. 31, 2021 USD ($)
Commitment for Operating Leases not Included in Operating Lease Liability [Abstract]
Annual rent, first year			$ 858,478
Annual rent, second year			$ 525,690
Dusseldorf Facility [Member]
Commitment for Operating Leases not Included in Operating Lease Liability [Abstract]
Area in lease facility (in square feet) \| ft²		27,220
Lease expiration date		Dec. 31, 2024
Lease facility annual rent		$ 210,991
Jacksonville Facility [Member] \| Subsequent Event [Member]
Commitment for Operating Leases not Included in Operating Lease Liability [Abstract]
Area in lease facility (in square feet) \| ft²	100,000
Lease termination term	120 months
Rent abatement period	5 months
Annual rent, first year	$ 695,000
Annual rent, second year	722,800
Annual rent, third year	$ 751,710