ACQUISITIONS (Details Textuals)	3 Months Ended
Apr. 30, 2020
Electronic Technologies Group [Member] \| HMI [Member]
Business Acquisition [Line Items]
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%
Existing Management [Member] \| Quell [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	19.90%

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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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Name of the acquired entity.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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 (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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