v3.26.1
Note 4 - Advances for Vessels Under Construction (Tables)
 12 Months Ended
Dec. 31, 2025
Notes Tables  
Summary of Advances for Vessels Under Construction [Table Text Block]
   

Costs

  

Balance, January 1, 2024

     -  

Advances for vessels under construction

     7,188,614  

Balance, December 31, 2024

     7,188,614  

Advances for vessels under construction

     7,183,182  

Other costs capitalized related to the construction

     14,764  

Balance, December 31, 2025

     14,386,560