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Note 6 - Revenue (Tables) | 3 Months Ended
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Mar. 31, 2023
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Three Months Ended March 31, |
|  | 2023 |  |  | 2022 |
Well construction |  | $ | 128,265 |  |  | $ | 111,435 |
Well management |  |  | 211,014 |  |  |  | 169,042 |
Total |  | $ | 339,279 |  |  | $ | 280,477 |
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
|  | March 31, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
Trade receivable, net |  | $ | 297,811 |  |  | $ | 289,235 |
Unbilled receivables (included within accounts receivable, net) |  | $ | 136,776 |  |  | $ | 139,690 |
Deferred revenue (included within other liabilities) |  | $ | 63,598 |  |  | $ | 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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