XML 40 R28.htm IDEA: XBRL DOCUMENT v3.25.2

Accrued expenses and other current liabilities (Tables)

6 Months Ended

Jun. 30, 2025

Accrued expenses and other current liabilities

Schedule of elements of accrued expenses and other current liabilities

​

​	​	​	​	​	​	​
​		June 30,			December 31,
​	​	2025		​	2024
​	​	(unaudited)		​	​	​
(in thousands)	​		​	​		​
Accrued expenses	​	$	13,741	​	$	12,320
Cylinder deposits	​		21,951	​		19,426
Lease obligations	​		2,020	​		1,961
Other current liabilities	​		228	​		106
Total	​	$	37,940	​	$	33,813

​

X

- Definition

NA

+ References

No definition available.

+ Details

Name:	hdsn_AccruedExpensesAndOtherCurrentLiabilitiesAbstract
Namespace Prefix:	hdsn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. 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). An alternative caption includes accrued expenses.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration