v3.26.1
Note 4 -Business Segments, Sales of Products and Significant Customers - Schedule of Sales from Continuing Operations to Significant Metals Customers (Details) - Revenue from Contract with Customer Benchmark [Member] - Customer Concentration Risk [Member]
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Customer A [Member]      
Segment Reporting [Line Items]      
Percentage of accounts receivable 31.90% 36.50% 15.70%
Customer B [Member]      
Segment Reporting [Line Items]      
Percentage of accounts receivable 12.50% 20.70% 12.60%
Customer E [Member]      
Segment Reporting [Line Items]      
Percentage of accounts receivable 30.40% 24.10% 20.60%