Note 2 - Fair Value Measurements - Additional Information about Level 3 Assets Measured at Fair Value on a Recurring Basis (Details) |
9 Months Ended |
|---|---|
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Sep. 30, 2025
USD ($)
| |
| Balance | $ 3,161,359 |
| Unrealized gain on investments | 0 |
| Purchase of investment | 0 |
| Realized Gain – return of capital | 0 |
| Balance | $ 3,161,359 |
| X | ||||||||||
- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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