Revenue - Disaggregation of Revenue by Major Source and by Segment (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Disaggregation of Revenue [Line Items]
Total revenues	$ 7,873,820	$ 7,183,121	$ 19,955,725	$ 21,755,712
Products
Disaggregation of Revenue [Line Items]
Total revenues	3,047,954	2,983,795	5,358,026	8,672,927
Services
Disaggregation of Revenue [Line Items]
Total revenues	4,462,607	3,943,510	13,474,254	12,153,700
Energy production
Disaggregation of Revenue [Line Items]
Total revenues	363,259	255,816	1,123,445	929,085
Products \| Products
Disaggregation of Revenue [Line Items]
Total revenues	3,047,954	2,983,795	5,358,026	8,672,927
Products \| Cogeneration
Disaggregation of Revenue [Line Items]
Total revenues	492,890	515,067	1,098,851	2,662,271
Products \| Chiller
Disaggregation of Revenue [Line Items]
Total revenues	2,555,064	2,234,728	4,019,892	5,624,818
Products \| Engineered Accessories
Disaggregation of Revenue [Line Items]
Total revenues	0	234,000	239,283	385,838
Services \| Services
Disaggregation of Revenue [Line Items]
Total revenues	4,462,607	3,943,510	13,474,254	12,153,700
Energy Production \| Energy production
Disaggregation of Revenue [Line Items]
Total revenues	$ 363,259	$ 255,816	$ 1,123,445	$ 929,085