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SUMMARY OF FINANCE AND OPERATING LEASE LIABILITIES (Details) - USD ($)	Sep. 30, 2022	Sep. 30, 2021
Leases
Lease liabilities - current, Finance leases
Lease liabilities - current, Operating leases	818,730	830,791
Lease liabilities - current	818,730	830,791
Lease liabilities - net of current portion, Finance leases
Lease liabilities - net of current portion, Operating leases	1,822,468	2,017,408
Lease liabilities - net of current portion	$ 1,822,468	$ 2,017,408

X

- References

No definition available.

+ Details

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Namespace Prefix:	CETX_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Finance lease liabilities current.

+ References

No definition available.

+ Details

Name:	CETX_FinanceLeaseLiabilitiesCurrent
Namespace Prefix:	CETX_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Finance lease liabilities noncurrent.

+ References

No definition available.

+ Details

Name:	CETX_FinanceLeaseLiabilitiesNoncurrent
Namespace Prefix:	CETX_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Lease liabilities current.

+ References

No definition available.

+ Details

Name:	CETX_LeaseLiabilitiesCurrent
Namespace Prefix:	CETX_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Longterm lease liabilities.

+ References

No definition available.

+ Details

Name:	CETX_LongtermLeaseLiabilities
Namespace Prefix:	CETX_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

+ Details

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

X

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

+ Details

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