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Note 6 - Revenue (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Year Ended December 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Well construction |  | $ | 533,556 |  |  | $ | 500,438 |  |  | $ | 112,126 |
Well management |  |  | 979,208 |  |  |  | 778,980 |  |  |  | 713,636 |
Total |  | $ | 1,512,764 |  |  | $ | 1,279,418 |  |  | $ | 825,762 |
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
|  | December 31, |
|  | 2023 |  |  | 2022 |
Trade receivable, net |  | $ | 222,591 |  |  | $ | 289,235 |
Unbilled receivables (included within accounts receivable, net) |  | $ | 203,689 |  |  | $ | 139,690 |
Contract assets (included within accounts receivable, net) |  | $ | 52,607 |  |  |  | - |
Deferred revenue (included within other liabilities) |  | $ | 27,206 |  |  | $ | 51,192 |

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