Note 14 - Shareholders' Equity - Stock Retired and Repurchased (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2019 |
|
| Treasury Stock, Shares, Acquired (in shares) | 0 | 1,538,363 | |
| Treasury Stock, Value, Acquired, Cost Method | $ 24,319,000 | ||
| Treasury Stock Acquired, Average Cost Per Share (in dollars per share) | $ 15.81 | ||
| Share Repurchase Program [Member] | |||
| Treasury Stock, Shares, Acquired (in shares) | 0 | 1,538,363 | 0 |
| Treasury Stock, Value, Acquired, Cost Method | $ 0 | $ 24,319,044 | $ 0 |
| Treasury Stock Acquired, Average Cost Per Share (in dollars per share) | $ 0 | $ 15.81 | $ 0 |