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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2024
Summary of Significant Accounting Policies |
Schedule of Product and related sales and RefrigerantSide Services revenues | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Six-month Period Ended June 30, |  | 2024 |  | 2023
(in thousands) |  | ​ |  |  | ​ |
Product and related sales | ​ | $ | 136,798 | ​ | $ | 163,895
RefrigerantSide ® Services | ​ |  | 3,734 | ​ | ​ | 3,778
Total | ​ | $ | 140,532 | ​ | $ | 167,673
Schedule of reconciliation of shares used to determine net income per share | The reconciliation of shares used to determine net income per share is as follows (dollars in thousands, unaudited): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months |  | Six Months
​ | ​ | ended June 30, | ​ | ended June 30,
​ |  | 2024 |  | 2023 |  | 2024 |  | 2023
Net income | ​ | $ | 9,585 | ​ | $ | 19,189 | ​ | $ | 19,147 | ​ | $ | 34,720
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average number of shares – basic | ​ | ​ | 45,513,445 | ​ | ​ | 45,339,570 | ​ | ​ | 45,511,434 | ​ | ​ | 45,319,155
Shares underlying options | ​ | ​ | 1,762,456 | ​ | ​ | 1,957,849 | ​ | ​ | 1,866,100 | ​ | ​ | 1,986,041
Weighted average number of shares – diluted | ​ | ​ | 47,275,901 | ​ | ​ | 47,297,419 | ​ | ​ | 47,377,534 | ​ | ​ | 47,305,196

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