Note 6 - Reserve for Losses and Loss Adjustment Expenses (Details Textual) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Liability for Claims and Claims Adjustment Expense [Line Items] | ||||
| Loss and Loss Adjustment Expense Reserve Redundancy | $ 14.3 | $ 6.5 | $ 24.7 | $ 10.8 |