Note 4 - Dispositions of Investments in Real Estate (Details Textual) - USD ($) $ in Thousands |
1 Months Ended | 3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|---|
Nov. 10, 2025 |
Mar. 31, 2026 |
Dec. 31, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Gains (Losses) on Sales of Other Real Estate | $ 0 | $ 0 | $ (1,115) | $ 0 | |||
| Parking Lot in Honolulu, Hawaii [Member] | |||||||
| Disposal Group, Including Discontinued Operation, Consideration | $ 16,500 | ||||||
| Gains (Losses) on Sales of Other Real Estate | $ 1,100 | ||||||
| Parking Lot in Indianapolis, Indiana [Member] | |||||||
| Disposal Group, Including Discontinued Operation, Consideration | $ 2,000 | ||||||
| Gains (Losses) on Sales of Other Real Estate | $ 500 | ||||||
| Parking Garage in Lubbock, Texas [Member] | |||||||
| Disposal Group, Including Discontinued Operation, Consideration | $ 11,000 | ||||||
| Gains (Losses) on Sales of Other Real Estate | 500 | ||||||
| Parking Lot in Denver, Colorado [Member] | |||||||
| Disposal Group, Including Discontinued Operation, Consideration | 2,500 | ||||||
| Gains (Losses) on Sales of Other Real Estate | $ 100 | ||||||