| Segment | Q2 '24 | Q3 '24 | Q4 '24 | Q1 '25 | Q2 '25 | Q3 '25 | Q4 '25 | Q1 '26 |
|---|---|---|---|---|---|---|---|---|
| FUELCHEM | $1.41M | $2.28M | $1.61M | $2.53M | $1.43M | $2.38M | $2.22M | $2.03M |
| Air Pollution Control | $1.54M | $1.13M | $628K | $425K | $1.1M | $1.28M | $1.01M | $615K |
| All Other Segments | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Total | $2.66M | $2.66M | $2.66M | $3.1M | $3.1M | $3.1M | $3.1M | — |