Consolidated Schedule of Investments (Details Textual) - USD ($) $ in Thousands |
Aug. 06, 2025 |
Dec. 31, 2025 |
Aug. 05, 2025 |
Dec. 31, 2024 |
Nov. 09, 2022 |
|---|---|---|---|---|---|
| Debt Instrument, Face Amount | $ 806,750 | $ 716,078 | |||
| HIMV LLC [Member] | |||||
| Subsidiary, Ownership Percentage, Parent | 100.00% | ||||
| HIMV LLC [Member] | Co-lender [Member] | |||||
| Subsidiary, Ownership Percentage, Noncontrolling Owner | 30.00% | ||||
| Horizon Technology Finance Corporation [Member] | HIMV LLC [Member] | |||||
| Subsidiary, Ownership Percentage, Parent | 70.00% | ||||
| Asset-backed Notes 2022 [Member] | |||||
| Debt Instrument, Face Amount | $ 0 | $ 81,078 | $ 157,800 | ||
| Asset-backed Notes 2022 [Member] | Affiliated Entity [Member] | |||||
| Debt Instrument, Face Amount | $ 100,000 | ||||
| Assets of Powerscourt Investments XXV, LP [Member] | |||||
| Asset Acquisition, Consideration Transferred | $ 22,500 | ||||
| Fair Value of Assets Acquired | 36,500 | ||||
| Assets of Powerscourt Investments XXV, LP [Member] | Debt Securities [Member] | |||||
| Fair Value of Assets Acquired | $ 34,900 |