Note 3 - Property, Plant, Equipment and Water Programs - Property, Plant, Equipment and Water Programs (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, plant, and equipment	$ 86,377	$ 60,545
Less accumulated depreciation	(7,487)	(7,064)
Property, plant, and equipment, net	78,890	53,481
Land and Land Improvements [Member]
Property, plant, and equipment	27,548	26,798
Water Programs [Member]
Property, plant, and equipment	28,784	28,323
Pipelines [Member]
Property, plant, and equipment	22,087	0
Building [Member]
Property, plant, and equipment	1,599	1,576
Leasehold Improvements [Member]
Property, plant, and equipment	570	570
Furniture and Fixtures [Member]
Property, plant, and equipment	461	461
Machinery and Equipment [Member]
Property, plant, and equipment	2,200	2,029
Construction in Progress [Member]
Property, plant, and equipment	$ 3,128	$ 788

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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