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Note 6 - Revenue (Tables) | 6 Months Ended
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Jun. 30, 2023
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Well construction |  | $ | 143,719 |  |  | $ | 121,794 |  |  | $ | 271,984 |  |  | $ | 233,229 |
Well management |  |  | 253,198 |  |  |  | 191,830 |  |  |  | 464,212 |  |  |  | 360,872 |
Total |  | $ | 396,917 |  |  | $ | 313,624 |  |  | $ | 736,196 |  |  | $ | 594,101 |
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
|  | June 30, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
Trade receivable, net |  | $ | 307,005 |  |  | $ | 289,235 |
Unbilled receivables (included within accounts receivable, net) |  | $ | 139,547 |  |  | $ | 139,690 |
Deferred revenue (included within other liabilities) |  | $ | 29,378 |  |  | $ | 51,192 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-5 + Details
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