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Note 3 - Redeemable Noncontrolling Interest (Details Textual) - USD ($) $ in Thousands |  |  | 1 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 08, 2023 | Feb. 01, 2019 | May 31, 2022 | Mar. 31, 2022 | May 31, 2021 | Sep. 30, 2023 | Sep. 30, 2022 | Mar. 01, 2016
Payments for Repurchase of Redeemable Noncontrolling Interest |  |  |  |  |  | $ 104,844 | $ 375 |
Pramac [Member] |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  |  |  | 20.00% |  |  | 35.00%
Captiva Energy Solutions [Member] |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  | 49.00% |  |  |  |  |  |
Pramac [Member] |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  | 15.00% |  |  | 65.00%
Redeemable Noncontrolling Interest, Equity, Fair Value, Total |  |  |  |  |  |  |  | $ 34,253
Payments for Repurchase of Redeemable Noncontrolling Interest | $ 116,754 |  |  |  | $ 27,164 |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, including Subsequent Acquisition, Percentage, Total | 100.00% |  |  |  | 80.00% |  |  |
Business Combination, Consideration Transferred | $ 105,264 |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross | 104,844 |  |  |  |  |  |  |
Gain (Loss), Foreign Currency Transaction, before Tax | 420 |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Liabilities Incurred | $ 11,490 |  |  |  |  |  |  |
Pramac [Member] | Restricted Shares for Contingent Consideration [Member |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | 135,205 |  |  |  |  |  |  |
Captiva Energy Solutions [Member] |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  | 51.00% |  | 15.00% |  |  |  |
Redeemable Noncontrolling Interest, Equity, Fair Value, Total |  | $ 3,165 |  |  |  |  |  |
Payments for Repurchase of Redeemable Noncontrolling Interest |  |  |  | $ 461 |  |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, including Subsequent Acquisition, Percentage, Total |  |  |  | 66.00% |  |  |  |
Business Acquisition, Noncontrolling Interest, Term of Put Option (Year) |  | 5 years |  |  |  |  |  |
Captiva Energy Solutions [Member] | Amendment to Purchase Agreement [Member] |  |  |  |  |  |  |  |
Payments for Repurchase of Redeemable Noncontrolling Interest |  |  | $ 375 |  |  |  |  |

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