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Marketable securities in equity securities with readily determinable market prices consisted of the following as of December 31, 2021 and 2020: (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Net Investment Income [Line Items] |  |
Payments to Acquire Investments | $ 2,500,000 |
Common Stock [Member] |  |
Net Investment Income [Line Items] |  |
Payments to Acquire Investments | 53,475,000 | 1,506,000
Unrealized Gain (Loss) on Securities | 32,000 | 1,083,000
Debt and Equity Securities, Gain (Loss) | (13,127,000) | (26,000)
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure | $ 40,380,000 | $ 2,563,000

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