Note 17 - Share-based Compensation - Equity-based Compensation Expenses Related to Performance-based Shares (Details) - USD ($) $ in Thousands |
9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2019 |
Jun. 30, 2020 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
| Total expense | $ 1,000 | $ 300 | $ 100 | $ 1,000 |
| Restricted Stock Units (RSUs) [Member] | ||||
| Total expense | 160 | (131) | 537 | |
| Restricted Stock Units (RSUs) [Member] | Granted Within the Fiscal Year Ended June 30, 2016 [Member] | ||||
| Total expense | 5 | 92 | ||
| Restricted Stock Units (RSUs) [Member] | Granted Within the Fiscal Year Ended June 30, 2017 [Member] | ||||
| Total expense | (12) | |||
| Restricted Stock Units (RSUs) [Member] | Granted Within the Fiscal Year Ended June 30, 2018 [Member] | ||||
| Total expense | (457) | 457 | ||
| Restricted Stock Units (RSUs) [Member] | Granted Within the Fiscal Year Ended June 30, 2019 [Member] | ||||
| Total expense | 101 | 321 | ||
| Restricted Stock Units (RSUs) [Member] | Granted Within the Fiscal Year Ended June 30, 2020 [Member] | ||||
| Total expense | $ 59 | |||