Annual report pursuant to Section 13 and 15(d)

Note 2 - Summary of Significant Accounting Policies (Details Textual)

v3.24.1
Note 2 - Summary of Significant Accounting Policies (Details Textual)
 12 Months Ended
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Impairment, Long-Lived Asset, Held-for-Use $ 4,851,000 $ 579,000
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount $ 1,400,000  
Number of Operating Segments 1  
Revenue from Contract with Customer, Excluding Assessed Tax $ 25,000 $ 4,000
Percentage of Revenue From Products Transferred at Point in Time 100.00% 100.00%
Accounts Receivable, after Allowance for Credit Loss, Current $ 67,000 $ 12,000
Trade Accounts Receivable [Member]    
Accounts Receivable, after Allowance for Credit Loss, Current 0 0
Sale of Inventory [Member]    
Revenue from Contract with Customer, Excluding Assessed Tax $ 25,000 $ 4,000
P. Kay Metals [Member]    
Percentage of Revenue From Products Transferred at Point in Time 100.00% 100.00%
Fair Value, Recurring [Member]    
Assets, Fair Value Disclosure, Total $ 0 $ 0
Asset under Construction [Member]    
Impairment, Long-Lived Asset, Held-for-Use 3,451,000 $ 579,000
LiNiCo [Member]    
Receivable, Investment, Sale 600,000  
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount $ 1,400,000