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Investments (Details) - USD ($)
1 Months Ended 3 Months Ended 76 Months Ended
Dec. 31, 2018
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2025
Dec. 31, 2024
Schedule of Equity Method Investments [Line Items]          
(Gains) losses from equity method investments   $ (294,000) $ 277,000    
Investment   54,572,000   $ 54,572,000 $ 53,563,000
Autotech Ventures          
Schedule of Equity Method Investments [Line Items]          
Investment commitment $ 10,000,000        
Contribution expected period 10 years        
Payments to acquire equity method investments   0 0 $ 8,950,000  
Distributions received   $ 0 0    
Equity method investment, ownership percentage   6.70%   6.70%  
(Gains) losses from equity method investments   $ (294,000) $ 277,000    
Investment   $ 8,024,000   $ 8,024,000 $ 7,730,000