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The following table presents additional information about marketable equity securities: (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Net Investment Income [Line Items] |  |
Sales of marketable equity securities | $ (4,062,000) | $ (373,000)
Realized gains on marketable equity securities | 1,924,000 |
Unrealized losses on marketable equity securities | (1,327,000) | 919,000
Purchases of marketable equity securities | 2,500,000 |
Realized losses on marketable equity securities | 21,187,000 | 75,000
Equity Securities [Member] |  |
Net Investment Income [Line Items] |  |
Balance at January 1, 2021 | 2,563,000 | 640,000
Purchases of marketable equity securities in operations | 385,235,000 | 1,425,000
Sales of marketable equity securities | (4,062,000) | (373,000)
Realized gains on marketable equity securities | 27,377,000 | 75,000
Unrealized losses on marketable equity securities | (14,127,000) | 796,000
Purchases of marketable equity securities | 2,765,000 |
Conversion of debt securities to marketable securities | 2,656,000 |
Sales of marketable equity securities in operations | (355,837,000) |
Realized losses on marketable equity securities | (6,190,000) |
Balance at December 31, 2021 | $ 40,380,000 | $ 2,563,000

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- Definition Amount of unrealized gain (loss) on investment in marketable security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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- Definition The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. + References No definition available. + Details
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