Note 9 - Incentive Plans - Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2026	Dec. 31, 2025	Dec. 31, 2024
Outstanding (in shares)	12,704,894	13,444,062
Outstanding, average exercise price (in dollars per share)	$ 11.19	$ 11.95
Outstanding, remaining term (Year)	3 years 8 months 12 days	4 years 2 months 12 days	5 years 3 months 18 days
Outstanding, intrinsic value	$ 0	$ 0	$ 53,093
Forfeitures (in shares)	0	(739,168)
Forfeitures, average exercise price (in dollars per share)	$ 0	$ 24.99
Forfeitures, options (in shares)	0	(739,168)
Outstanding (in shares)	12,704,894	12,704,894	13,444,062
Outstanding, average exercise price (in dollars per share)	$ 11.19	$ 11.19	$ 11.95
Vest, remaining term (Year)	3 years 8 months 12 days	4 years 2 months 12 days
Vest, intrinsic value	$ 0	$ 0
Exercisable, options (in shares)	10,755,894	10,755,894
Exercisable, weighted average exercise price (in dollars per share)	$ 11.31	$ 11.31
Exercisable remaining term (Year)	4 years 3 months 18 days	4 years 9 months 18 days
Exercisable, intrinsic value	$ 0	$ 0
Vested, options (in shares)	12,704,894	12,704,894
Vest, weighted average exercise price (in dollars per share)	$ 11.19	$ 11.19
Exercisable, options (in shares)	10,755,894	10,755,894
Exercisable, weighted average exercise price (in dollars per share)	$ 11.31	$ 11.31

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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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. 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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Number of fully vested and expected to vest exercisable options that may 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 contractual term remaining for vested portion of option outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Weighted-average contractual term remaining for option award outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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