Note 18 - Employee Retirement Programs (Details Textual) - USD ($) $ in Millions |
6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2019 |
|
| Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent | 100.00% | |||
| Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage | 100.00% | |||
| Defined Contribution Plan, Employers Matching Contribution, Vesting Period (Year) | 3 years | |||
| Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 2.7 | $ 3.2 | $ 3.3 | |