Marketable Investment Securities (Details Narrative) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Investments, Debt and Equity Securities [Abstract] | ||||
| Sales of marketable investment securities | $ 0 | $ 0 | $ 0 | $ 0 |
| Realized gains or losses | 0 | 0 | 0 | 0 |
| Matured marketable investment securities | 6,800,000 | 5,900,000 | 18,600,000 | 14,600,000 |
| Allowance for credit losses | 0 | 0 | 0 | 0 |
| Impairment charge | $ 0 | $ 0 | $ 0 | $ 0 |
| X | ||||||||||
- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of impairment loss for asset. Includes, but is not limited to, tangible and intangible assets and goodwill. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of realized gain (loss) on investment in debt and equity securities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- 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. No definition available.
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| X | ||||||||||
- Definition The cash inflow associated with the sale of securities that had been designated as held-to-maturity. Excludes proceeds from maturities, prepayments and calls by the issuer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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