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Accrued expenses and other current liabilities | 12 Months Ended
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Dec. 31, 2024
Accrued expenses and other current liabilities |
Accrued expenses and other current liabilities | Note 9 – Accrued expenses and other current liabilities Elements of Accrued expenses and other current liabilities are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, |  | 2024 |  | 2023
(in thousands) |  | ​ |  |  | ​ |
Accrued expenses | ​ | $ | 12,320 | ​ | $ | 12,256
Cylinder deposits | ​ |  | 19,426 | ​ |  | 17,225
Lease obligations | ​ |  | 1,961 | ​ |  | 1,893
Other current liabilities | ​ |  | 106 | ​ |  | 163
Total | ​ | $ | 33,813 | ​ | $ | 31,537
​

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- Definition The entire disclosure for accounts payable, accrued expenses, and other liabilities that are classified as current at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 720 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483384/720-30-45-1 + Details
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