ACQUISITIONS (Details Textuals)	6 Months Ended
Apr. 30, 2019
Flight Support Group [Member] \| Decavo [Member]
Business Acquisition [Line Items]
Name of Acquired Entity	Decavo, LLC ("Decavo")
Percentage of Voting Interests Acquired	80.10%
Description of Acquired Business	Decavo designs and produces complex composite parts and assemblies incorporated into camera and related sensor assemblies and UAV airframes used in demanding defense and civilian applications.
Flight Support Group [Member] \| Decavo [Member] \| Existing Management [Member]
Business Acquisition [Line Items]
Ownership Percentage by Noncontrolling Owners	19.90%
Electronic Technologies Group [Member] \| Solid Sealing Technology [Member]
Business Acquisition [Line Items]
Name of Acquired Entity	Solid Sealing Technology, Inc. ("SST")
Percentage of Voting Interests Acquired	85.00%
Description of Acquired Business	SST designs and manufactures high-reliability ceramic-to-metal feedthroughs and connectors for demanding environments within the defense, industrial, life science, medical, research, semiconductor, and other markets.
Electronic Technologies Group [Member] \| Solid Sealing Technology [Member] \| Existing Management [Member]
Business Acquisition [Line Items]
Ownership Percentage by Noncontrolling Owners	15.00%
Electronic Technologies Group [Member] \| Freebird [Member]
Business Acquisition [Line Items]
Name of Acquired Entity	Freebird Semiconductor Corporation ("Freebird")
Percentage of Voting Interests Acquired	50.00%
Description of Acquired Business	Freebird is a fabless design and manufacturing company that offers advanced high-reliability wide-band gap power switching technology.
Electronic Technologies Group [Member] \| Apex [Member]
Business Acquisition [Line Items]
Name of Acquired Entity	Apex Microtechnology, Inc. ("Apex")
Percentage of Voting Interests Acquired	92.70%
Description of Acquired Business	Apex designs and manufactures precision power analog monolithic, hybrid and open frame components for a certain wide range of aerospace, defense, industrial, measurement, medical and test applications.
Electronic Technologies Group [Member] \| Apex [Member] \| Existing Management [Member]
Business Acquisition [Line Items]
Ownership Percentage by Noncontrolling Owners	7.30%
Electronic Technologies Group [Member] \| Specialty Silicone Products [Member]
Business Acquisition [Line Items]
Name of Acquired Entity	Specialty Silicone Products, Inc. ("SSP")
Description of Acquired Business	SSP designs and manufactures silicone material for a variety of demanding applications used in aerospace, defense, research, oil and gas, testing, pharmaceuticals and other markets.

With respect to a business combination completed during the period, this element provides a description of the business, other than the name, which may include the industry, size, products and other important information.

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