Note 4 - Property, Plant, Equipment and Water Programs (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
Depreciation	$ 1,264	$ 1,214
Conversion of Agricultural Wells to Reduce Emissions [Member]
Construction in Progress, Gross	$ 6,100

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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