Organization	12 Months Ended
Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	NOTE 1 – ORGANIZATION Cemtrex was incorporated in 1998, in the state of Delaware and has evolved through strategic acquisitions and internal growth from a small environmental monitoring instruments company into a world leading multi-industry technology company. The Company drives innovation in a wide range of sectors, including smart technology, virtual and augmented realities, advanced electronic systems, industrial solutions, and intelligent security systems. Advanced Technologies (AT) Cemtrex’s Advanced Technologies segment delivers cutting-edge technologies in the IoT, Wearables and Smart Devices, such as the SmartDesk a cutting edge IoT product for the desktop PC market. Through its Cemtrex VR division, the Company is developing a wide variety of applications for virtual and augmented reality markets. Electronics Manufacturing (EM) Cemtrex’s Electronics Manufacturing (EM) segment, provides end to end electronic manufacturing services, which includes product design and sustaining engineering services, printed circuit board assembly and production, cabling and wire harnessing, systems integration, comprehensive testing services and completely assembled electronic products. Industrial Technology (IT) Cemtrex’s Industrial Technology (IT) segment, offers single-source expertise and services for rigging, millwrighting, in plant maintenance, equipment erection, relocation, and disassembly to diversified customers. The segment also sells a complete line of air filtration and environmental control products to a wide variety of customers in industries such as: chemical, cement, steel, food, construction, mining, & petrochemical worldwide. Recent Developments In July 2017, Company set up a subsidiary named Cemtrex Advanced Technologies Inc. to leverage its existing design and engineering experience by directly developing and manufacturing its own proprietary advanced electronic products and for third parties for IoT applications. In December 2017, Company set up a subsidiary named Cemtrex Technologies Pvt. Ltd., by acquiring certain fix assets consisting of computers, hardware and proprietary software from a private third party located in Pune, India, to carry out software and prototype development work related to new Virtual & Augmented Reality applications and Smart Technology products to be produced by Cemtrex Advanced Technologies Inc., located in New York. In January 2018, the Company completed the consolidation of its Paderborn EM factory into the EM factory at Neulingen, Germany to create economies of scale. However, the ROB Logistics and ROB Assets subsidiaries remained at the Paderborn location. The Company continues to experience weakness in new orders in its environmental instruments and control products markets both domestically and internationally. Revenues in that segment continue to be down as fewer number of projects are being decided and awarded due to relaxation of numerous environmental regulations under the current administration. Company has shifted its focus into smart devices and virtual reality applications, and hence the Company will continue to reduce its presence in the environmental instruments and control products markets in the coming year. Vicon Industries, Inc. On March 23, 2018, in a private resale transaction, Cemtrex purchased 7,284,824 shares of common stock and a warrant to purchase an additional 1,500,000 shares of common stock of Vicon Industries, Inc. (OTCMKTS: VCON), (“Vicon”), from former Vicon shareholder NIL Funding Corporation, pursuant to the terms of a Securities Purchase Agreement. Cemtrex’s purchase of the Vicon Industries common stock and warrant resulted in its beneficial ownership of approximately 46% of the outstanding shares of common stock of Vicon. Cemtrex purchased the shares of common stock and warrant of Vicon Industries in exchange for 1,012,625 shares of Cemtrex common stock. Following the closing of the transaction, Saagar Govil, Cemtrex’s Chairman and Chief Executive Officer, and Aron Govil, Cemtrex’s Executive Director, joined the Vicon Industries Board of Directors and Saagar Govil assumed the position of Chief Executive Officer of Vicon Industries. The Company had elected to account for Vicon using the equity method. On August 8, 2018, the Company entered into a Research and Development Services Agreement (the “Agreement”) with Vicon to provide Vicon with outsourced software development services. Vicon is transitioning its principal Israeli based software development activities to the Company’s India based services group, which has now assumed principal software coding and test responsibilities for Vicon. The outsourcing of these activities is expected to materially reduce the Vicon’s software development costs and provide development efficiencies, which should help expedite its software roadmap. The terms of the Agreement, among other things, set forth the scope of services, consideration, developed technology ownership, non-disclosure and safeguard of Vicon’s software code. Pursuant to an informal agreement, $ 356,055 of fees were billed to Vicon during the year ended September 30, 2018 in connection with the transition of software development activities.

Organization

12 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

NOTE 1 – ORGANIZATION

Cemtrex was incorporated in 1998, in the state of Delaware and has evolved through strategic acquisitions and internal growth from a small environmental monitoring instruments company into a world leading multi-industry technology company. The Company drives innovation in a wide range of sectors, including smart technology, virtual and augmented realities, advanced electronic systems, industrial solutions, and intelligent security systems.

Advanced Technologies (AT)

Cemtrex’s Advanced Technologies segment delivers cutting-edge technologies in the IoT, Wearables and Smart Devices, such as the SmartDesk a cutting edge IoT product for the desktop PC market. Through its Cemtrex VR division, the Company is developing a wide variety of applications for virtual and augmented reality markets.

Electronics Manufacturing (EM)

Cemtrex’s Electronics Manufacturing (EM) segment, provides end to end electronic manufacturing services, which includes product design and sustaining engineering services, printed circuit board assembly and production, cabling and wire harnessing, systems integration, comprehensive testing services and completely assembled electronic products.

Industrial Technology (IT)

Cemtrex’s Industrial Technology (IT) segment, offers single-source expertise and services for rigging, millwrighting, in plant maintenance, equipment erection, relocation, and disassembly to diversified customers. The segment also sells a complete line of air filtration and environmental control products to a wide variety of customers in industries such as: chemical, cement, steel, food, construction, mining, & petrochemical worldwide.

Recent Developments

In July 2017, Company set up a subsidiary named Cemtrex Advanced Technologies Inc. to leverage its existing design and engineering experience by directly developing and manufacturing its own proprietary advanced electronic products and for third parties for IoT applications.

In December 2017, Company set up a subsidiary named Cemtrex Technologies Pvt. Ltd., by acquiring certain fix assets consisting of computers, hardware and proprietary software from a private third party located in Pune, India, to carry out software and prototype development work related to new Virtual & Augmented Reality applications and Smart Technology products to be produced by Cemtrex Advanced Technologies Inc., located in New York.

In January 2018, the Company completed the consolidation of its Paderborn EM factory into the EM factory at Neulingen, Germany to create economies of scale. However, the ROB Logistics and ROB Assets subsidiaries remained at the Paderborn location.

The Company continues to experience weakness in new orders in its environmental instruments and control products markets both domestically and internationally. Revenues in that segment continue to be down as fewer number of projects are being decided and awarded due to relaxation of numerous environmental regulations under the current administration. Company has shifted its focus into smart devices and virtual reality applications, and hence the Company will continue to reduce its presence in the environmental instruments and control products markets in the coming year.

Vicon Industries, Inc.

On March 23, 2018, in a private resale transaction, Cemtrex purchased 7,284,824 shares of common stock and a warrant to purchase an additional 1,500,000 shares of common stock of Vicon Industries, Inc. (OTCMKTS: VCON), (“Vicon”), from former Vicon shareholder NIL Funding Corporation, pursuant to the terms of a Securities Purchase Agreement. Cemtrex’s purchase of the Vicon Industries common stock and warrant resulted in its beneficial ownership of approximately 46% of the outstanding shares of common stock of Vicon. Cemtrex purchased the shares of common stock and warrant of Vicon Industries in exchange for 1,012,625 shares of Cemtrex common stock. Following the closing of the transaction, Saagar Govil, Cemtrex’s Chairman and Chief Executive Officer, and Aron Govil, Cemtrex’s Executive Director, joined the Vicon Industries Board of Directors and Saagar Govil assumed the position of Chief Executive Officer of Vicon Industries. The Company had elected to account for Vicon using the equity method.

On August 8, 2018, the Company entered into a Research and Development Services Agreement (the “Agreement”) with Vicon to provide Vicon with outsourced software development services. Vicon is transitioning its principal Israeli based software development activities to the Company’s India based services group, which has now assumed principal software coding and test responsibilities for Vicon. The outsourcing of these activities is expected to materially reduce the Vicon’s software development costs and provide development efficiencies, which should help expedite its software roadmap. The terms of the Agreement, among other things, set forth the scope of services, consideration, developed technology ownership, non-disclosure and safeguard of Vicon’s software code. Pursuant to an informal agreement, $ 356,055 of fees were billed to Vicon during the year ended September 30, 2018 in connection with the transition of software development activities.