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Accrued expenses and other current liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Accrued expenses and other current liabilities
Accrued expenses	$ 17,246	$ 12,320
Cylinder deposits	22,783	19,426
Lease obligations	2,049	1,961
Other current liabilities	124	106
Total	$ 42,202	$ 33,813

X

- Definition

NA

+ References

No definition available.

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable and classified as other, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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No definition available.

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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No definition available.

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
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-Name Accounting Standards Codification
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-Subparagraph (SX 210.5-02(20))
-Publisher FASB
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- Definition

The current portion, due within one year or one operating cycle, if longer, of deposits held other than customer deposits.

+ References

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Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

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