SUBSEQUENT EVENT SUBSEQUENT EVENT (Details Textual) - Subsequent Event [Member] - Quell [Member]	1 Months Ended
Dec. 31, 2019	Dec. 01, 2019
Electronic Technologies Group [Member]
Subsequent Event [Line Items]
Subsequent Event, Date	Dec. 01, 2019
Percentage of interest acquired in the subsidiary		80.10%
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.
Existing Management [Member]
Subsequent Event [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.

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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.

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

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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Date the event occurred after the balance sheet date but before financial statements are issues or available to be issued, in CCYY-MM-DD format.

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