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MARKETABLE SECURITIES (Details) - Common Stock [Member] - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Net Investment Income [Line Items]
Cost	$ 53,475,000	$ 1,506,000
Gross unrealized gains	32,000	1,083,000
Gross unrealized losses	(13,127,000)	(26,000)
Fair value	$ 40,380,000	$ 2,563,000

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