Note 4 - Investment Management Fee (Details Textual) - USD ($) |
12 Months Ended | ||||
|---|---|---|---|---|---|
Mar. 31, 2024 |
Sep. 30, 2023 |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Management Fee Payable | $ 0 | $ 127,478 | |||
| Management [Member] | |||||
| Management and Service Fees, Rate | 2.00% | ||||
| Management and Service Fees, Incentive Rate | 20.00% | ||||
| Increase (Decrease) in Incentive Fee Payable | $ 0 | $ 0 | $ 0 | ||
| Management Fee Payable | $ 3,000,000 | $ 2,500,000 | |||
| Investment Company, Contractual Fee Waived | $ 3,000,000 | $ 2,500,000 | |||