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Note 3 - Reportable Segments - Property, Plant, Equipment and Water Programs (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Property, plant, and equipment | $ 98,940 | $ 96,594
Less accumulated depreciation | (10,578) | (9,377)
Property, plant, and equipment, net | 88,362 | 87,217
Water and Land Resources [Member] |  |
Property, plant, and equipment | 98,683 | 96,380
Less accumulated depreciation | (10,397) | (9,238)
Property, plant, and equipment, net | 88,286 | 87,142
Water Treatment [Member] |  |
Property, plant, and equipment | 257 | 214
Less accumulated depreciation | (181) |
Property, plant, and equipment, net | 76 | 75
Land and Land Improvements [Member] |  |
Property, plant, and equipment | 33,069 | 32,357
Land and Land Improvements [Member] | Water and Land Resources [Member] |  |
Property, plant, and equipment | 33,069 | 32,357
Water Programs [Member] |  |
Property, plant, and equipment | 29,383 | 29,209
Water Programs [Member] | Water and Land Resources [Member] |  |
Property, plant, and equipment | 29,383 | 29,209
Pipelines [Member] |  |
Property, plant, and equipment | 22,100 | 22,096
Pipelines [Member] | Water and Land Resources [Member] |  |
Property, plant, and equipment | 22,100 | 22,096
Building [Member] |  |
Property, plant, and equipment | 1,805 | 1,730
Building [Member] | Water and Land Resources [Member] |  |
Property, plant, and equipment | 1,805 | 1,730
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 | 1,605
Leasehold Improvements, Furniture, Fixtures [Member] | Water Treatment [Member] |  |
Property, plant, and equipment | 4 | 4
Machinery and Equipment [Member] |  |
Property, plant, and equipment | 4,117 | 3,929
Machinery and Equipment [Member] | Water and Land Resources [Member] |  |
Property, plant, and equipment | 3,870 | 3,719
Machinery and Equipment [Member] | Water Treatment [Member] |  |
Property, plant, and equipment | 247 | 210
Construction in Progress [Member] |  |
Property, plant, and equipment | 6,857 | 5,664
Construction in Progress [Member] | Water and Land Resources [Member] |  |
Property, plant, and equipment | 6,851 | $ 5,664
Construction in Progress [Member] | Water Treatment [Member] |  |
Property, plant, and equipment | $ 6 |

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