Note 15 - Long-term Incentive Compensation - Option Activity (Details) - $ / shares	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Outstanding (in shares)	284,954	386,584	492,889
Outstanding (in dollars per share)	$ 22.82	$ 19.18	$ 20.83
Granted (in shares)	100,151	137,019	127,903
Granted (in dollars per share)	$ 25.29	$ 21.67	$ 24.83
Exercised (in shares)	(66,592)	(201,795)	(193,821)
Exercised (in dollars per share)	$ 22.3	$ 14.95	$ 24.34
Forfeited (in shares)	(25,118)	(36,854)	(40,387)
Forfeited (in dollars per share)	$ 23.21	$ 23.37	$ 22.78
Outstanding (in shares)	293,395	284,954	386,584
Outstanding (in dollars per share)	$ 23.75	$ 22.82	$ 19.18
Exercisable(1) (in shares)	4,823	5,954	32,710
Exercisable(1) (in dollars per share)	$ 23.56	$ 8.23	$ 10.46
Vested or expected to vest (in shares)	293,395	284,954	386,584
Vested or expected to vest (in dollars per share)	$ 23.75	$ 22.82	$ 19.18

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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