XML 48 R33.htm IDEA: XBRL DOCUMENT
v3.23.2

Note 6 - Marketable Securities (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2023
Notes Tables |
Marketable Securities [Table Text Block] |
|  | As of June 30, 2023 |  |  | As of December 31, 2022 |
Marketable securities: |  |  |  |  |  |  |  |
Amortized cost |  | $ | 41,713 |  |  | $ | 87,411 |
Unrealized gains, net |  |  | 273,113 |  |  |  | 510,321 |
Total fair value |  | $ | 314,826 |  |  | $ | 597,732 |
Gain (Loss) on Securities [Table Text Block] |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Gain/(loss) on marketable securities, net |  | $ | 14,561 |  |  | $ | (261,467 | ) |  | $ | 4,417 |  |  | $ | (139,703 | )

X
- 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(7)(c)) -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(9)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
Name: | us-gaap_GainLossOnInvestmentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_MarketableSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration