Note 2 - Accounting Standards and Significant Accounting Policies (Details Textual) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Interest Rate on Financing Receivable | 6.00% | |
| Property, Plant and Equipment, Minimum Cost Capitalization | $ 2,000 | |
| Funds Due To Organization | 6,956,000 | $ 8,288,000 |
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | $ 0 | $ 0 |
| Minimum [Member] | Furniture and Fixtures [Member] | ||
| Property, Plant and Equipment, Useful Life (Year) | 5 years | |
| Minimum [Member] | Building [Member] | ||
| Property, Plant and Equipment, Useful Life (Year) | 15 years | |
| Maximum [Member] | Furniture and Fixtures [Member] | ||
| Property, Plant and Equipment, Useful Life (Year) | 7 years | |
| Maximum [Member] | Building [Member] | ||
| Property, Plant and Equipment, Useful Life (Year) | 39 years | |