ACQUISITIONS (Details Textuals)	9 Months Ended
Jul. 31, 2020
Electronic Technologies Group [Member] \| HMI [Member]
Business Acquisition [Line Items]
Name of Acquired Entity	Human-Machine Interface
Description of Acquired Entity	HMI designs, manufactures, and repairs flight deck annunciators, panels, indicators, and illuminated keyboards, as well as lighting controls, and flight deck lighting.
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Electronic Technologies Group [Member] \| Quell [Member]
Business Acquisition [Line Items]
Name of Acquired Entity	Quell Corporation
Description of Acquired Entity	Quell designs and manufactures electromagnetic interference (EMI)/radio-frequency interference (RFI) and transient protection solutions for a wide variety of connectors that principally serve customers within the aerospace and defense markets.
Business Acquisition, Percentage of Voting Interests Acquired	80.10%
Electronic Technologies Group [Member] \| EPC [Member]
Business Acquisition [Line Items]
Name of Acquired Entity	EPC Space LLC
Description of Acquired Entity	EPC designs, develops, promotes, markets and sells radiation-hardened gallium nitride power solutions packaged for use in outer space and other high reliability applications.
Business Acquisition, Percentage of Voting Interests Acquired	49.00%
Electronic Technologies Group [Member] \| RMH [Member]
Business Acquisition [Line Items]
Name of Acquired Entity	Rocky Mountain Hydrostatics, LLC
Description of Acquired Entity	Rocky Mountain overhauls industrial pumps, motors, and other hydraulic units with a focus on the support of legacy systems for the U.S. Navy.
Electronic Technologies Group [Member] \| Freebird [Member]
Business Acquisition [Line Items]
Name of Acquired Entity	Freebird Semiconductor Corporation
Flight Support Corp [Member] \| RMH [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	70.00%
Flight Support Corp [Member] \| Freebird [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Existing Management [Member] \| Quell [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	19.90%
Existing Management [Member] \| RMH [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	30.00%

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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-Name Accounting Standards Codification
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