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Note 3 - Redeemable Noncontrolling Interest (Details Textual) - USD ($) $ in Thousands			1 Months Ended			6 Months Ended
	Mar. 08, 2023	Feb. 01, 2019	May 31, 2022	Mar. 31, 2022	May 31, 2021	Jun. 30, 2023	Jun. 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

X

- Definition

The term of a put option available to the noncontrolling interest of a business acquired by the reporting entity.

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Number of shares of equity interests issued or issuable to acquire entity.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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- Definition

Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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- Definition

Percentage of voting equity interests acquired in a business combination achieved in stages, including equity interests in the acquiree held by the acquirer immediately before the acquisition date and acquired at the acquisition date.

+ References

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Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction.

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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- Definition

The cash outflow during the period for redemption of redeemable noncontrolling interests.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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The aggregate fair value as of the reporting date of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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