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Note 7 - Marketable Securities (Tables) | 3 Months Ended
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Mar. 31, 2024
Notes Tables |
Marketable Securities [Table Text Block] |
|  | As of March 31, 2024 |  |  | As of December 31, 2023 |
Marketable securities: |  |  |  |  |  |  |  |
Amortized cost |  | $ | 2,702 |  |  | $ | 40,110 |
Unrealized gains, net |  |  | 35 |  |  |  | 289,947 |
Total fair value |  | $ | 2,737 |  |  | $ | 330,057 |
Gain (Loss) on Securities [Table Text Block] |
|  | Three Months Ended March 31, |
|  | 2024 |  |  | 2023 |
Loss on marketable securities, net |  | $ | (27,686 | ) |  | $ | (10,144 | )
Dividend income (included in Other income, net and Special dividend income) |  | $ | 1,705 |  |  | $ | 197,575 |
|  | Three Months Ended March 31, |
|  | 2024 |  |  | 2023 |
Loss on marketable securities, net |  | $ | (27,686 | ) |  | $ | (10,144 | )
Less: Net loss recognized related to marketable securities sold |  |  | 27,695 |  |  |  | 10,418 |
Unrealized gain related to marketable securities still held |  | $ | 9 |  |  | $ | 274 |

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- Definition Tabular disclosure of realized and unrealized gain (loss) on investment in security. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(9)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
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- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
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