Note 6 - Variable Interest Entities (Details Textual) |
3 Months Ended | 6 Months Ended |
|---|---|---|
Mar. 31, 2024 |
Jun. 30, 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% | 50.00% |
| X | ||||||||||
- Definition Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|