Annual report pursuant to Section 13 and 15(d)

Note 8 - Variable Interest Entities (Details Textual)

v3.22.4
Note 8 - Variable Interest Entities (Details Textual)
12 Months Ended
Dec. 31, 2022
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%