Note 10 - Components of Net Periodic Pension Cost (Details Textual) - Pension Plan [Member] - First of Long Island Corporation [Member] $ in Millions |
3 Months Ended | ||
|---|---|---|---|
|
Sep. 30, 2025
USD ($)
|
Jun. 01, 2025
USD ($)
|
Sep. 30, 2025
USD ($)
|
|
| Defined Benefit Plan, Funded (Unfunded) Status of Plan | $ 11.2 | ||
| Defined Benefit Plan, Minimum Age of Employee | 21 | ||
| Defined Benefit Plan, Minimum Service (Month) | 12 months | ||
| Defined Benefit Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 2.00% | ||
| Defined Benefit Plan, Employers Matching Contribution, Vesting Period (Year) | 4 years | ||
| Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 5.41% | 5.41% | |
| Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease) | $ 2.0 | ||
| Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment | $ (3.5) | ||
| Defined Benefit Plan, Funded Percentage | 134.00% | 134.00% |