| Schedule of Segment Reporting Information, by Segment [Table Text Block] |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (in thousands) | | Advisory | | Trust | | Total Reportable | | Other | | Consolidated | | Three Months Ended June 30, 2026 | | | | | | | | | | | | Net fee revenues from external sources | | $ | 19,372 | | | $ | 5,372 | | | $ | 24,744 | | | $ | — | | | $ | 24,744 | | | Net intersegment revenues | | 2,234 | | | 36 | | | 2,270 | | | (2,270) | | | — | | | | | | | | | | | | | | Other revenue | | 576 | | | 23 | | | 599 | | | — | | | 599 | | | Total revenues | | $ | 22,182 | | | $ | 5,431 | | | $ | 27,613 | | | $ | (2,270) | | | $ | 25,343 | | | Interest income | | $ | 177 | | | $ | 54 | | | $ | 231 | | | $ | — | | | $ | 231 | | | Net income (loss) | | $ | 4,499 | | | $ | 659 | | | $ | 5,158 | | | $ | (3,631) | | | $ | 1,527 | | | Segment assets | | $ | 338,116 | | | $ | 46,018 | | | $ | 384,134 | | | $ | (228,759) | | | $ | 155,375 | | | Segment goodwill | | $ | 23,100 | | | $ | 16,401 | | | $ | 39,501 | | | $ | — | | | $ | 39,501 | | | Segment equity-method investments | | $ | 4,195 | | | $ | — | | | $ | 4,195 | | | $ | — | | | $ | 4,195 | | | Expenditures for long-lived assets | | $ | 1,236 | | | $ | 921 | | | $ | 2,157 | | | $ | 412 | | | $ | 2,569 | | | | | | | | | | | | | | Three Months Ended June 30, 2025 | | | | | | | | | | | | Net fee revenues from external sources | | $ | 17,955 | | | $ | 5,069 | | | $ | 23,024 | | | $ | — | | | $ | 23,024 | | | Net intersegment revenues | | 1,469 | | | 39 | | | 1,508 | | | (1,508) | | | — | | | | | | | | | | | | | | Other revenue | | 96 | | | — | | | 96 | | | — | | | 96 | | | Total revenues | | $ | 19,520 | | | $ | 5,108 | | | $ | 24,628 | | | $ | (1,508) | | | $ | 23,120 | | | Interest income | | $ | 122 | | | $ | 137 | | | $ | 259 | | | $ | — | | | $ | 259 | | | Net income (loss) | | $ | 4,023 | | | $ | 576 | | | $ | 4,599 | | | $ | (3,568) | | | $ | 1,031 | | | Segment assets | | $ | 315,096 | | | $ | 45,201 | | | $ | 360,297 | | | $ | (214,018) | | | $ | 146,279 | | | Segment goodwill | | $ | 23,100 | | | $ | 16,401 | | | $ | 39,501 | | | $ | — | | | $ | 39,501 | | | Segment equity-method investments | | $ | 4,197 | | | $ | — | | | $ | 4,197 | | | $ | — | | | $ | 4,197 | | | Expenditures for long-lived assets | | $ | — | | | $ | — | | | $ | — | | | $ | — | | | $ | — | |
|