Note 14 - Shareholders' Equity (Details Textual) - $ / shares |
Jun. 30, 2019 |
Jun. 30, 2018 |
|---|---|---|
| Common Stock, Shares Authorized | 150,000,000 | 150,000,000 |
| Common Stock, Par or Stated Value Per Share | $ 0.01 | $ 0.01 |
| Preferred Stock, Shares Authorized | 1,055,000 | 1,055,000 |
| Preferred Stock, Par or Stated Value Per Share | $ 0.01 | $ 0.01 |
| Preferred Stock, Shares Issued, Total | ||
| Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased | 2,518,046 | |
| Common Class A [Member] | ||
| Common Stock, Shares Authorized | 150,000,000 | |
| Common Stock, Par or Stated Value Per Share | $ 0.01 |