Annual report [Section 13 and 15(d), not S-K Item 405]

Summary of Significant Accounting Policies - Revenue (Details)

v3.26.1
Summary of Significant Accounting Policies - Revenue (Details) - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disaggregation of Revenue [Line Items]    
Revenue $ 27,073,710 $ 22,619,536
Products    
Disaggregation of Revenue [Line Items]    
Revenue 9,133,450 4,443,996
Products | Cogeneration    
Disaggregation of Revenue [Line Items]    
Revenue 3,073,582 2,677,930
Products | Chiller    
Disaggregation of Revenue [Line Items]    
Revenue 5,658,183 1,647,374
Products | Engineered Accessories    
Disaggregation of Revenue [Line Items]    
Revenue 401,685 118,692
Services | Installation Services [Member]    
Disaggregation of Revenue [Line Items]    
Revenue 16,616,523 16,074,870
Services | Energy Production    
Disaggregation of Revenue [Line Items]    
Revenue $ 1,323,737 $ 2,100,670