Consolidated Schedule of Investments - Schedule of Investments (Details) - USD ($) |
Sep. 30, 2025 |
Jun. 30, 2025 |
Dec. 31, 2024 |
Sep. 30, 2024 |
Jun. 30, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|---|---|---|---|---|---|---|
| Investments, market value, total | $ 256,934 | $ 1,060,474 | |||||||
| OTHER ASSETS IN EXCESS OF LIABILITIES — 13.4% | 39,613 | 205 | |||||||
| NET ASSETS — 100.0% | 296,547 | $ 747,259 | 1,060,679 | $ 1,544,147 | $ 1,017,920 | $ 1,260,371 | $ 30,600,000 | $ 94,800,000 | $ 102,100,000 |
| Automotive Sector [Member] | Wrightspeed Inc [Member] | |||||||||
| Investments, market value, total | 0 | 0 | |||||||
| Equipment Leasing Sector [Member] | EQX Capital, Inc [Member] | |||||||||
| Investments, market value, total | 23,173 | 29,466 | |||||||
| Medical Devices Sector [Member] | IntraOp Medical Corp. [Member] | |||||||||
| Investments, market value, total | $ 3,224 | $ 25,287 |
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- Definition Amount of net assets (liabilities). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Fair value of investment in security owned. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of noninvestment asset (liability) representing difference between aggregate value of investments, including, but not limited to, long and short positions, and net assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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