v3.26.1
Note 6 - Formation of EverOn Energy Joint Venture and Consolidation of Variable Interest Entity (Details Textual) - USD ($)
 3 Months Ended 12 Months Ended
Sep. 30, 2025
May 02, 2025
Mar. 24, 2025
Oct. 31, 2023
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Oct. 31, 2025
Stock Issued During Period, Value, Acquisitions             $ 288,000  
Stock Issued During Period, Value, New Issues           $ 60,000    
Goodwill         $ 18,964,000 18,964,000 241,000  
Net Income (Loss) Attributable to Noncontrolling Interest           (820,000) 0  
Goodwill, Impairment Loss           0 0  
EverOn Energy LLC [Member]                
Joint Venture Formation, Fair Value of Joint Venture         56,944,000 56,944,000    
Business Combination, Recognized Liability Assumed, Liability $ 0              
Goodwill $ 19,000,000       18,964,000 18,964,000    
Finite-Lived Intangible Assets, Net         37,518,000 37,518,000   $ 37,980,000
Finite-Lived Intangible Asset, Expected Amortization, Year One               1,877,000
Intangible Asset, Finite-Lived, Amortization Expense         469,000      
Intangible Asset, Finite-Lived, Accumulated Amortization         469,000 469,000    
Intangible Asset, Excluding Goodwill, Impairment Loss           0    
Goodwill, Impairment Loss           0    
EverOn Energy LLC [Member] | Customer Relationships [Member]                
Finite-Lived Intangible Assets, Net         $ 26,200,000 $ 26,200,000   $ 26,190,000
Finite-Lived Intangible Asset, Useful Life (Year)         24 years 24 years   24 years
Finite-Lived Intangible Asset, Expected Amortization, Year One         $ 1,091,000 $ 1,091,000   $ 1,091,000
Intangible Asset, Finite-Lived, Amortization Expense         273,000      
EverOn Energy LLC [Member] | Favorable Contracts [Member]                
Finite-Lived Intangible Assets, Net         $ 10,900,000 $ 10,900,000   $ 10,930,000
Finite-Lived Intangible Asset, Useful Life (Year)         15 years 15 years   15 years
Finite-Lived Intangible Asset, Expected Amortization, Year One         $ 729,000 $ 729,000   $ 729,000
Intangible Asset, Finite-Lived, Amortization Expense         $ 182,000      
EverOn Energy LLC [Member] | Software, Internally Developed [Member]                
Finite-Lived Intangible Assets, Net               $ 860,000
Finite-Lived Intangible Asset, Useful Life (Year)         15 years 15 years   15 years
Finite-Lived Intangible Asset, Expected Amortization, Year One         $ 57,000 $ 57,000   $ 57,000
Intangible Asset, Finite-Lived, Amortization Expense         $ 14,000      
Series B Preferred Stock [Member] | EverOn Energy LLC [Member]                
Stock Issued During Period, Value, Acquisitions           $ 50,116,000    
EverOn Energy LLC [Member]                
Ownership Sold Percentage (in dollars per share) $ 49              
Development Costs Subsumed $ 5,200,000              
Equity Method Investment, Ownership Percentage 51.00%       51.00% 51.00%    
Joint Venture Formation, Fair Value of Joint Venture $ 56,900,000              
Net Income (Loss) Attributable to Noncontrolling Interest           $ (1,558,000) $ (2,077,000)  
Hover [Member]                
Long-Term Debt, Gross $ 5,200,000     $ 5,200,000        
Value of Restitution       1,400,000        
Other Payables, Current         $ 1,400,000 1,400,000    
Hover [Member] | Series B Preferred Stock [Member]                
Stock Issued During Period, Shares, New Issues (in shares) 20,000              
Amount to be Repaid in Cash       2,300,000        
Stock Issued During Period, Value, New Issues $ 30,500,000     1,800,000        
Loss on Settlement of Liability       2,000,000        
Settlement Liabilities, Current         2,300,000 2,300,000    
Other Payables, Current         $ 1,400,000 $ 1,400,000    
Shares Issued, Price Per Share (in dollars per share) $ 1,526              
Hover [Member] | Series B Preferred Stock [Member] | EverOn Energy LLC [Member]                
Stock Issued During Period, Shares, New Issues (in shares) 21,150              
Hover [Member] | Series B Preferred Stock [Member] | Conversion of Debt Into Preferred Stock [Member]                
Debt Conversion, Original Debt, Amount       $ 1,200,000        
Debt Conversion, Converted Instrument, Shares Issued (in shares)       1,150        
Southern Point Capital Corporation [Member]                
Stock Issued During Period, Shares, New Issues (in shares)   20,000            
Repayments of Assumed Debt       $ 1,700,000        
Stock Issued During Period, Value, New Issues   $ 172,000            
Corporate Joint Venture [Member]                
Ownership Percentage     51.00%          
Corporate Joint Venture [Member] | Hoover [Member]                
Stock Issued During Period, Shares, Acquisitions (in shares)     20,000          
Stock Issued During Period, Value, Acquisitions     $ 30,500,000          
Assets Contributed for Aquisition     900,000          
Costs Previously Capitalized Subsumed for Acquisition     $ 5,200,000          
Hoover [Member] | Corporate Joint Venture [Member]                
Ownership Percentage     49.00%          
Hover [Member] | EverOn Energy LLC [Member]                
Equity Method Investment, Ownership Percentage 49.00%       49.00% 49.00%    
Noncontrolling Interest in Joint Ventures $ 20,400,000