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NOTES RECEIVABLE (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended
	Jun. 30, 2021	Dec. 31, 2019	Jun. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Aug. 16, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Change in note receivable					$ 194
Transformer Business Units [Member] | Subordinated Debt [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal amount						$ 7,500
Interest rate	4.00%		4.00%
Maturity date			Dec. 31, 2022
Repayment of notes payable		$ 1,800
Change in note receivable	$ 194
Change in value of notes				321
Carrying value				$ 5,700
Transformer Business Units [Member] | Subordinated Debt [Member] | First Seller Note [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal amount		$ 3,200				5,000
Transformer Business Units [Member] | Subordinated Debt [Member] | Second Seller Note [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal amount						$ 2,500

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