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Note 18 - (Losses) Earnings Per Share (Details Textual) - $ / shares | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Mar. 31, 2021 | Mar. 31, 2022 | Mar. 31, 2022 | Mar. 31, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares) |  |  |  | 674,500
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants (in shares) | 140,000 | 140,500 |  |
Minimum [Member] |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ 2.53 | $ 3.28 | $ 3.28 | $ 2.53
Maximum [Member] |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ 5.98 | $ 7.76 | $ 7.76 | $ 5.98
Share-Based Payment Arrangement, Option [Member] |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares) |  |  | 698,875 |

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