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Note 4 - Reportable Segments - Property, Plant, Equipment and Water Programs (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Property, plant, and equipment | $ 96,594 | $ 92,279
Less accumulated depreciation | (9,377) | (8,141)
Property, plant, and equipment, net | 87,217 | 84,138
Water and Land Resources [Member] |  |
Property, plant, and equipment | 96,380 | 92,110
Less accumulated depreciation | (9,238) | (8,141)
Property, plant, and equipment, net | 87,142 | 83,969
Water Treatment [Member] |  |
Property, plant, and equipment | 214 | 169
Less accumulated depreciation | (139) |
Property, plant, and equipment, net | 75 | 169
Land and Land Improvements [Member] |  |
Property, plant, and equipment | 32,357 | 30,579
Land and Land Improvements [Member] | Water and Land Resources [Member] |  |
Property, plant, and equipment | 32,357 | 30,579
Water Programs [Member] |  |
Property, plant, and equipment | 29,209 | 29,210
Water Programs [Member] | Water and Land Resources [Member] |  |
Property, plant, and equipment | 29,209 | 29,210
Pipelines [Member] |  |
Property, plant, and equipment | 22,096 | 22,091
Pipelines [Member] | Water and Land Resources [Member] |  |
Property, plant, and equipment | 22,096 | 22,091
Building [Member] |  |
Property, plant, and equipment | 1,730 | 1,715
Building [Member] | Water and Land Resources [Member] |  |
Property, plant, and equipment | 1,730 | 1,715
Leasehold Improvements, Furniture, Fixtures [Member] |  |
Property, plant, and equipment | 1,609 | 1,609
Leasehold Improvements, Furniture, Fixtures [Member] | Water and Land Resources [Member] |  |
Property, plant, and equipment | 1,605 | 1,606
Leasehold Improvements, Furniture, Fixtures [Member] | Water Treatment [Member] |  |
Property, plant, and equipment | 4 | 3
Machinery and Equipment [Member] |  |
Property, plant, and equipment | 3,929 | 3,395
Machinery and Equipment [Member] | Water and Land Resources [Member] |  |
Property, plant, and equipment | 3,719 | 3,229
Machinery and Equipment [Member] | Water Treatment [Member] |  |
Property, plant, and equipment | 210 | 166
Construction in Progress [Member] |  |
Property, plant, and equipment | 5,664 | 3,680
Construction in Progress [Member] | Water and Land Resources [Member] |  |
Property, plant, and equipment | $ 5,664 | $ 3,680

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