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ACQUISITIONS - Consideration Transferred (Details) - Versatile Power, Inc. [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($)
Business Acquisition [Line Items]
Acquired percentage	100.00%
Cash paid for acquisition	$ 4,594
Holdback	950
Contingent consideration	1,500
Total fair value of consideration transferred	7,044
Less cash acquired	(245)
Total purchase price	$ 6,799

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