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v3.23.1

Note 8 - Investment in Joint Ventures (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2023
Notes Tables |
Equity Method Investments [Table Text Block] |
|  | March 31, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
CETS |  | $ | 64,914 |  |  | $ | 62,471 |
PVD-Expro |  |  | 3,521 |  |  |  | 3,567 |
Total |  | $ | 68,435 |  |  | $ | 66,038 |

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481687/323-10-50-3 + Details
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