| Segment Reporting, Reconciliation of Revenue by Segment to Consolidated [Table Text Block] |
| (in thousands) | | | | | | | | | | | | | | | | | | | | | | | | |
| | | Asset Management | | | | | | | | | | | | | | | | |
| | | Bimini | | | | | | | Investment | | | | | | | | | | | | | |
| Six Months Ended June 30, 2026 | | Advisors | | | TJIM(4) | | | Portfolio | | | Corporate | | | Eliminations | | | Total | |
| Advisory services, external customers | | $ | 10,205 | | | $ | 1,728 | | | $ | - | | | $ | - | | | $ | - | | | $ | 11,933 | |
| Advisory services, other operating segments(1) | | | 76 | | | | - | | | | - | | | | - | | | | (76 | ) | | | - | |
| Interest and dividend income | | | - | | | | 10 | | | | 1,781 | | | | - | | | | - | | | | 1,791 | |
| Total revenues | | | 10,281 | | | | 1,738 | | | | 1,781 | | | | - | | | | (76 | ) | | | 13,724 | |
| Interest expense(2) | | | - | | | | - | | | | (842 | ) | | | (995 | ) | | | - | | | | (1,837 | ) |
| Net revenues | | | 10,281 | | | | 1,738 | | | | 939 | | | | (995 | ) | | | (76 | ) | | | 11,887 | |
| Other income (expense), net | | | - | | | | 3 | | | | (494 | ) | | | - | | | | - | | | | (491 | ) |
| Operating expenses | | | (102 | ) | | | (1,120 | ) | | | (46 | ) | | | (7,303 | ) | | | - | | | | (8,571 | ) |
| Allocated expenses(3) | | | (5,405 | ) | | | (878 | ) | | | (1,020 | ) | | | 7,303 | | | | - | | | | - | |
| Intercompany expenses(1) | | | - | | | | - | | | | (76 | ) | | | - | | | | 76 | | | | - | |
| Income (loss) before income taxes | | $ | 4,774 | | | $ | (257 | ) | | $ | (697 | ) | | $ | (995 | ) | | $ | - | | | $ | 2,825 | |
| (in thousands) | | | | | | | | | | | | | | | | | | | | | | | | |
| | | Asset Management | | | | | | | | | | | | | | | | |
| | | Bimini | | | | | | | Investment | | | | | | | | | | | | | |
| Six Months Ended June 30, 2025 | | Advisors | | | TJIM(4) | | | Portfolio | | | Corporate | | | Eliminations | | | Total | |
| Advisory services, external customers | | $ | 7,393 | | | $ | - | | | $ | - | | | $ | - | | | $ | - | | | $ | 7,393 | |
| Advisory services, other operating segments(1) | | | 81 | | | | - | | | | - | | | | - | | | | (81 | ) | | | - | |
| Interest and dividend income | | | - | | | | - | | | | 3,734 | | | | - | | | | - | | | | 3,734 | |
| Total revenues | | | 7,474 | | | | - | | | | 3,734 | | | | - | | | | (81 | ) | | | 11,127 | |
| Interest expense(2) | | | - | | | | - | | | | (2,497 | ) | | | (1,079 | ) | | | - | | | | (3,576 | ) |
| Net revenues | | | 7,474 | | | | - | | | | 1,237 | | | | (1,079 | ) | | | (81 | ) | | | 7,551 | |
| Other income (expense), net | | | - | | | | - | | | | (1,026 | ) | | | - | | | | - | | | | (1,026 | ) |
| Operating expenses | | | (73 | ) | | | - | | | | (65 | ) | | | (5,604 | ) | | | - | | | | (5,742 | ) |
| Allocated expenses(3) | | | (3,724 | ) | | | - | | | | (1,881 | ) | | | 5,605 | | | | - | | | | - | |
| Intercompany expenses(1) | | | - | | | | - | | | | (81 | ) | | | - | | | | 81 | | | | - | |
| Income (loss) before income taxes | | $ | 3,677 | | | $ | - | | | $ | (1,816 | ) | | $ | (1,078 | ) | | $ | - | | | $ | 783 | |
| (in thousands) | | | | | | | | | | | | | | | | | | | | | | | | |
| | | Asset Management | | | | | | | | | | | | | | | | |
| | | Bimini | | | | | | | Investment | | | | | | | | | | | | | |
| Three Months Ended June 30, 2026 | | Advisors | | | TJIM(4) | | | Portfolio | | | Corporate | | | Eliminations | | | Total | |
| Advisory services, external customers | | $ | 5,078 | | | $ | 1,728 | | | $ | - | | | $ | - | | | $ | - | | | $ | 6,806 | |
| Advisory services, other operating segments(1) | | | 20 | | | | - | | | | - | | | | - | | | | (20 | ) | | | - | |
| Interest and dividend income | | | - | | | | 10 | | | | 412 | | | | - | | | | - | | | | 422 | |
| Total revenues | | | 5,098 | | | | 1,738 | | | | 412 | | | | - | | | | (20 | ) | | | 7,228 | |
| Interest expense(2) | | | - | | | | - | | | | (144 | ) | | | (499 | ) | | | - | | | | (643 | ) |
| Net revenues | | | 5,098 | | | | 1,738 | | | | 268 | | | | (499 | ) | | | (20 | ) | | | 6,585 | |
| Other income, net | | | - | | | | 3 | | | | 64 | | | | - | | | | - | | | | 67 | |
| Operating expenses | | | (52 | ) | | | (1,120 | ) | | | (22 | ) | | | (3,651 | ) | | | - | | | | (4,845 | ) |
| Allocated expenses(3) | | | (2,565 | ) | | | (878 | ) | | | (208 | ) | | | 3,651 | | | | - | | | | - | |
| Intercompany expenses(1) | | | - | | | | - | | | | (20 | ) | | | - | | | | 20 | | | | - | |
| Income (loss) before income taxes | | $ | 2,481 | | | $ | (257 | ) | | $ | 82 | | | $ | (499 | ) | | $ | - | | | $ | 1,807 | |
| (in thousands) | | | | | | | | | | | | | | | | | | | | | | | | |
| | | Asset Management | | | | | | | | | | | | | | | | |
| | | Bimini | | | | | | | Investment | | | | | | | | | | | | | |
| Three Months Ended June 30, 2025 | | Advisors | | | TJIM(4) | | | Portfolio | | | Corporate | | | Eliminations | | | Total | |
| Advisory services, external customers | | $ | 3,811 | | | $ | - | | | $ | - | | | $ | - | | | $ | - | | | $ | 3,811 | |
| Advisory services, other operating segments(1) | | | 40 | | | | - | | | | - | | | | - | | | | (40 | ) | | | - | |
| Interest and dividend income | | | - | | | | - | | | | 1,787 | | | | - | | | | - | | | | 1,787 | |
| Total revenues | | | 3,851 | | | | - | | | | 1,787 | | | | - | | | | (40 | ) | | | 5,598 | |
| Interest expense(2) | | | - | | | | - | | | | (1,191 | ) | | | (541 | ) | | | - | | | | (1,732 | ) |
| Net revenues | | | 3,851 | | | | - | | | | 596 | | | | (541 | ) | | | (40 | ) | | | 3,866 | |
| Other income (expense), net | | | - | | | | - | | | | (998 | ) | | | - | | | | - | | | | (998 | ) |
| Operating expenses | | | (31 | ) | | | - | | | | (25 | ) | | | (2,763 | ) | | | - | | | | (2,819 | ) |
| Allocated expenses(3) | | | (1,881 | ) | | | - | | | | (882 | ) | | | 2,763 | | | | - | | | | - | |
| Intercompany expenses(1) | | | - | | | | - | | | | (40 | ) | | | - | | | | 40 | | | | - | |
| Income (loss) before income taxes | | $ | 1,939 | | | $ | - | | | $ | (1,349 | ) | | $ | (541 | ) | | $ | - | | | $ | 49 | |
|