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Note 8 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Intangible assets subject to amortization from continuing operations $ 13,250,000 $ 14,450,000 $ 17,239,000
Additions 0 12,100,000  
Amortization (1,200,000) (4,675,000)  
Impairment 0 (10,214,000)  
Intangible assets, gross 16,200,000 16,200,000  
Less: accumulated amortization (2,950,000) (1,750,000)  
Total, Annual Amortization Expense 13,250,000 14,450,000 17,239,000
Customer Relationships [Member]      
Intangible assets subject to amortization from continuing operations 12,920,000 13,940,000 3,321,000
Additions 0 11,900,000  
Amortization (1,020,000) (1,054,000)  
Impairment 0 (227,000)  
Intangible assets, gross 15,300,000 15,300,000  
Total, Annual Amortization Expense 12,920,000 13,940,000 3,321,000
Marketing-Related Intangible Assets [Member]      
Intangible assets subject to amortization from continuing operations 330,000 510,000 499,000
Additions 0 200,000  
Amortization (180,000) (189,000)  
Impairment 0 0  
Intangible assets, gross 900,000 900,000  
Total, Annual Amortization Expense 330,000 510,000 499,000
Technology-Based Intangible Assets [Member]      
Intangible assets subject to amortization from continuing operations 0 0 13,419,000
Additions 0 0  
Amortization 0 (3,432,000)  
Impairment 0 (9,987,000)  
Total, Annual Amortization Expense $ 0 $ 0 $ 13,419,000