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Note 8 - Investment in Joint Ventures (Tables)
3 Months Ended
Mar. 31, 2025
Notes Tables  
Equity Method Investments [Table Text Block]
  

March 31,

  

December 31,

 
  

2025

  

2024

 

CETS

 $74,402  $70,696 

PVD-Expro

  2,316   2,316 

Total

 $76,718  $73,012