Quarterly report [Sections 13 or 15(d)]

Property, Plant and Equipment - Summary of Property and Equipment (Details)

v3.26.3
Property, Plant and Equipment - Summary of Property and Equipment (Details) - USD ($)
Sep. 30, 2026
Dec. 31, 2025
Property, Plant, and Equipment [Line Items]    
Property and equipment, gross $ 5,723,025 $ 5,750,478
Less - accumulated depreciation and amortization (4,253,154) (4,141,157)
Property, plant and equipment, net 1,469,871 1,609,321
Energy systems    
Property, Plant, and Equipment [Line Items]    
Property and equipment, gross $ 2,557,726 2,488,929
Energy systems | Minimum    
Property, Plant, and Equipment [Line Items]    
Useful life - years 10 years  
Energy systems | Maximum    
Property, Plant, and Equipment [Line Items]    
Useful life - years 15 years  
Machinery and equipment    
Property, Plant, and Equipment [Line Items]    
Property and equipment, gross $ 1,469,244 1,631,139
Machinery and equipment | Minimum    
Property, Plant, and Equipment [Line Items]    
Useful life - years 5 years  
Machinery and equipment | Maximum    
Property, Plant, and Equipment [Line Items]    
Useful life - years 7 years  
Furniture and fixtures    
Property, Plant, and Equipment [Line Items]    
Useful life - years 5 years  
Property and equipment, gross $ 284,457 270,837
Computer software    
Property, Plant, and Equipment [Line Items]    
Property and equipment, gross $ 192,865 192,865
Computer software | Minimum    
Property, Plant, and Equipment [Line Items]    
Useful life - years 3 years  
Computer software | Maximum    
Property, Plant, and Equipment [Line Items]    
Useful life - years 5 years  
Leasehold improvements    
Property, Plant, and Equipment [Line Items]    
Property and equipment, gross $ 1,218,733 $ 1,166,708