Quarterly report [Sections 13 or 15(d)]

Debt - Narrative (Details)

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Debt - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended
Aug. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Mar. 31, 2023
Line of Credit Facility [Line Items]            
Purchases of property and equipment   $ 1,659,000 $ 63,000      
Vehicles            
Line of Credit Facility [Line Items]            
Purchases of property and equipment $ 100,000          
Secured Debt            
Line of Credit Facility [Line Items]            
Notes payable   300,000   $ 300,000    
Cemen Tech Capital, LLC | Secured Debt            
Line of Credit Facility [Line Items]            
Interest rate         8.75%  
Ford Motor Credit | Secured Debt            
Line of Credit Facility [Line Items]            
Interest rate           6.96%
Notes payable 46,000 39,000,000   43,000,000    
Debt instrument, periodic payment $ 1,345          
Ford Motor Credit | Secured Debt | Twenty Twenty- Four Ford Notes            
Line of Credit Facility [Line Items]            
Notes payable   $ 500,000   600,000    
Maximum borrowing capacity       $ 600,000    
Ford Motor Credit | Secured Debt | Twenty Twenty- Four Ford Notes | Minimum            
Line of Credit Facility [Line Items]            
Interest rate       8.60%    
Ford Motor Credit | Secured Debt | Twenty Twenty- Four Ford Notes | Maximum            
Line of Credit Facility [Line Items]            
Interest rate       11.30%