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Note 10 - Financial Instruments - Schedule of Assets and Liabilities Measured at Fair Value on recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	$ 0	$ 210
Liabilities
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	$ (0)	1,190
Fair Value, Recurring [Member] | Commodity Contract [Member]
Assets
Derivative Asset, Fair Value, Amount Not Offset Against Collateral		210
Liabilities
Derivative Liability, Fair Value, Amount Not Offset Against Collateral		1,190
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Commodity Contract [Member]
Assets
Derivative Asset, Fair Value, Amount Not Offset Against Collateral		210
Liabilities
Derivative Liability, Fair Value, Amount Not Offset Against Collateral		$ 1,190

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Fair value, after offset of derivative liability, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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