Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Organization (Details Textual)

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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