Annual report pursuant to Section 13 and 15(d)

Note 17 - Share-based Compensation - Equity Compensation Expenses Related to Performance-based Shares (Details)

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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