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Revenue (Tables)

12 Months Ended

Dec. 31, 2025

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following table presents the disaggregated revenues by segment, and within each segment, by geographical market based on the

customer “shipped to” address, and by channel customers.  Sales and usage-based taxes are excluded from revenues.  See Note 9,

“Segment Reporting,” for further discussion related to the Company’s segments.

	Years Ended December 31,
	2025						2024						2023
	Water		Emerging Technologies		Total		Water		Emerging Technologies		Total		Water		Emerging Technologies		Total
(In thousands)
Geographical market
Middle East	$68,084		$92		$68,176		$59,538		$399		$59,937		$49,501		$177		$49,678
Africa	15,010		—		15,010		30,731		—		30,731		26,936	0	—		26,936
Other	51,608		193		51,801		54,041		239		54,280		51,288		447		51,735
Total revenue	$134,702		$285		$134,987		$144,310		$638		$144,948		$127,725		$624		$128,349
Channel
Megaproject	$82,885		$—		$82,885		$95,399		$—		$95,399		$83,665		$—		$83,665
Original equipment manufacturer	31,748		192		31,940		31,337		188		31,525		25,548		447		25,995
Aftermarket	20,069		93		20,162		17,574		450		18,024		18,512		177		18,689
Total revenue	$134,702		$285		$134,987		$144,310		$638		$144,948		$127,725		$624		$128,349

Schedule of Contract Assets

The following table presents the change in contract asset balances during the reported periods.

	Years Ended December 31,
	2025		2024
	(In thousands)
Contract assets balance, beginning of year	$2,776		$592
Transferred to trade receivables	(2,776)		(592)
Additions to contract assets, excluding amounts transferred to trade receivables during the year	1,647		2,776
Contract assets balance, end of year	$1,647		$2,776

Schedule of Contract With Customer, Contract Liability, Activity

The following table presents the change in contract liability balances during the reported

periods.

	Years Ended December 31,
	2025		2024
(In thousands)
Contract liabilities, beginning of year	$571		$1,187
Revenue recognized	(297)		(1,085)
Cash received, excluding amounts recognized as revenue during the year	765		469
Contract liabilities, end of year	$1,039		$571

Schedule of Revenue, Remaining Performance Obligation

As of December 31, 2025, the following table presents the revenue that is expected to be recognized related to performance

obligations that are unsatisfied or partially unsatisfied.

Period		Remaining Performance Obligations
		(In thousands)
2026		10,374
2027		6,587
Total		$16,961

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Contract With Customer, Contract Assets, Activity

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Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
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-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)(1)
-SubTopic 10
-Topic 606
-Publisher FASB
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