Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Variable Interest Entities (Details Textual)

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Note 6 - Variable Interest Entities (Details Textual)
3 Months Ended
Mar. 31, 2024
Rubicon LLC [Member]  
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage 50.00%
Arabian Amines Company [Member]  
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage 50.00%