Note 9 - Related Parties (Details Textual) - USD ($) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Feb. 01, 2018 |
|
| General and Administrative Expense | $ 468,893 | $ 533,466 | $ 1,110,113 | $ 1,176,666 | |
| General Partner [Member] | |||||
| Management Fee Annual Percentage | 0.50% | ||||
| Management Fee Expense | 273,000 | 545,000 | 273,000 | 545,000 | |
| General and Administrative Expense | 83,000 | $ 78,000 | 170,000 | $ 167,000 | |
| General Partner [Member] | Reimbursement of General and Administrative Expenses [Member] | |||||
| Accounts Payable, Current | $ 83,000 | $ 83,000 | |||
| X | ||||||||||
- Definition An annual management fee is due to the General Partner based on this percentage of the total gross equity proceeds raised in its best-efforts offering. No definition available.
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of expense for investment management fee, including, but not limited to, expense in connection with research, selection, supervision, and custody of investment. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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