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MARKETABLE EQUITY SECURITIES (Details) - Common Stock [Member] - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2022 | Dec. 31, 2021
Net Investment Income [Line Items] |  |
Cost | $ 16,182,000 | $ 53,475,000
Gross unrealized gains | 281,000 | 32,000
Gross unrealized losses | (7,902,000) | (13,127,000)
Fair value | $ 8,561,000 | $ 40,380,000

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