Marketable Investment Securities (Details Narrative) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2023 |
Jun. 30, 2022 |
Jun. 30, 2023 |
Jun. 30, 2022 |
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| Investments, Debt and Equity Securities [Abstract] | ||||
| Sales of marketable investment securities | $ 0 | $ 0 | ||
| Realized gains or losses | 0 | 0 | ||
| Matured marketable investment securities | $ 5,900,000 | $ 8,600,000 | 17,900,000 | 33,800,000 |
| Other-than-temporary impairments | $ 0 | $ 0 | $ 0 | $ 0 |
| X | ||||||||||
- Definition Amount of realized gain (loss) on investment in debt and equity securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition This item represents an increase to the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security held for which no such other than temporary impairment (OTTI) was previously recognized. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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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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