Note 4 - Investments (Details Textual) |
Dec. 31, 2023 |
Sep. 30, 2023 |
|---|---|---|
| Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | 25 | 42 |
| X | ||||||||||
- Definition Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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