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v3.23.2

Note 2 - Reportable Segments - Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Revenues | $ 809 | $ 185 | $ 939 | $ 328
Cost of sales | 768 | 0 | 790 | 0
General and administrative | 5,320 | 3,405 | 9,251 | 7,211
Depreciation | 305 | 172 | 634 | 293
Total costs and expenses | 6,393 | 3,577 | 10,675 | 7,504
Operating loss | (5,584) | $ (3,392) | (9,736) | $ (7,176)
Water and Land Resources [Member] |  |  |  |
Revenues | 379 |  | 509 |
Cost of sales | 432 |  | 454 |
General and administrative | 5,232 |  | 8,999 |
Depreciation | 271 |  | 549 |
Total costs and expenses | 5,935 |  | 10,002 |
Operating loss | (5,556) |  | (9,493) |
Water Treatment [Member] |  |  |  |
Revenues | 430 |  | 430 |
Cost of sales | 336 |  | 336 |
General and administrative | 88 |  | 252 |
Depreciation | 34 |  | 85 |
Total costs and expenses | 458 |  | 673 |
Operating loss | $ (28) |  | $ (243) |

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