Note 1 - Organization (Details Textual) - USD ($) $ in Millions |
Mar. 31, 2022 |
Feb. 28, 2021 |
|---|---|---|
| LiNiCo [Member] | ||
| Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 12.00% | 12.00% |
| LiNiCo [Member] | Maximum [Member] | ||
| Equity Securities without Readily Determinable Fair Value, Amount | $ 2 |
| X | ||||||||||
- Definition Amount of investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|