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Organization and Plan of Operations (Details Narrative) |  | 9 Months Ended
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Aug. 15, 2019 d | Jun. 30, 2020 Segments
Number of reportable segments | Segments |  | 2
Vicon Industries, Inc. [Member] |  |
Number of reportable segments | d | 2 |

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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration

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- Details
Name: | dei_LegalEntityAxis=CETX_ViconIndustriesIncMember
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Data Type: | na
Balance Type: |
Period Type: |