Note 17 - Share-based Compensation - Equity Compensation Expenses Related to Performance-based Shares (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2023 |
Jun. 30, 2022 |
Jun. 30, 2021 |
|
| Share-Based Payment Arrangement, Expense | $ 1,300 | $ 1,100 | $ 1,300 |
| Performance Shares [Member] | |||
| Share-Based Payment Arrangement, Expense | 833 | 663 | 535 |
| Performance Shares [Member] | Granted Within the Fiscal Year Ended June 30, 2020 [Member] | |||
| Share-Based Payment Arrangement, Expense | 0 | 107 | 234 |
| Performance Shares [Member] | Granted Within the Fiscal Year Ended June 30, 2021 [Member] | |||
| Share-Based Payment Arrangement, Expense | 236 | 143 | 301 |
| Performance Shares [Member] | Granted Within the Fiscal Year Ended June 30, 2022 [Member] | |||
| Share-Based Payment Arrangement, Expense | 317 | 413 | 0 |
| Performance Shares [Member] | Granted Within The Fiscal Year Ended June 30, 2023 [Member] | |||
| Share-Based Payment Arrangement, Expense | $ 280 | $ 0 | $ 0 |