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Note 17 - Redeemable Preferred Shares (Details Textual) - Series A Preferred Units [Member] - USD ($) $ / shares in Units, $ in Millions | May 04, 2023 | Aug. 08, 2022 | Apr. 21, 2023 | Mar. 31, 2023 | Jan. 30, 2023
--- | --- | --- | --- | --- | ---
Unit Purchase Agreement, Preferred Units Issued (in shares) |  | 10,000,000 |  |  | 5,000,000
Unit Purchase Agreement, Price Per Unit (in dollars per share) |  | $ 6.00 |  |  | $ 6.00
Unit Purchase Agreement, Aggregate Additional Preferred Units (in shares) |  | 23,333,333.34 |  |  |
Unit Purchase Agreement, Capital upon the Initial Funding |  | $ 60.0 |  |  | $ 30.0
Unit Purchase Agreement, Additional Capital Commitments |  | 140.0 |  | $ 82.5 |
Unit Purchase Agreement, Payment Pursuant to Milestone Fundings |  | $ 140.0 |  |  |
Unit Purchase Agreement, Milestone Fundings, Standby Fee Rate |  | 0.50% |  |  |
Preferred Stock, Dividend Rate, Percentage |  | 15.00% |  |  |
Unit Purchase Agreement, Accretion Expense on the Redeemable Preferred Shares |  |  |  | 4.2 |
Legal Fees |  | $ 0.9 |  |  |
Preferred Stock, Liquidation Preference, Value |  |  |  | $ 125.6 |
Subsequent Event [Member] |  |  |  |  |
Unit Purchase Agreement, Preferred Units Issued (in shares) |  |  | 833,333 |  |
Unit Purchase Agreement, Price Per Unit (in dollars per share) |  |  | $ 6.00 |  |
Unit Purchase Agreement, Capital upon the Initial Funding |  |  | $ 5.0 |  |
Stock Redeemed or Called During Period, Shares (in shares) | 5,173,067 |  |  |  |
Stock Redeemed or Called, Discount on Premium | 30.00% |  |  |  |
Stock Redeemed or Called During Period, Value | $ 45.7 |  |  |  |
Minimum [Member] |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  | 13.00% |  |  |
Maximum [Member] |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  | 17.00% |  |  |

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