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Other Financial Information (Tables)

12 Months Ended

Dec. 31, 2025

Other Financial Information [Abstract]

Schedule of Cash, Cash Equivalents and Restricted Cash

The following table presents a

reconciliation of cash, cash equivalents and restricted cash, reported for each period within the Consolidated Balance Sheets and the

Consolidated Statements of Cash Flows that sum to the total of such amounts.

	December 31,
	2025		2024		2023
	(In thousands)
Cash and cash equivalents	$48,076		$29,627		$68,098
Restricted cash, non-current (included in other assets, non-current)	—		130		127
Total cash, cash equivalents and restricted cash	$48,076		$29,757		$68,225

Schedule of Allowance for Doubtful Accounts

The following table presents the allowance for doubtful accounts activities.

	Years Ended December 31,
	2025		2024		2023
(In thousands)
Balance, beginning of year	$221		$138		$148
Changes to reserves (1)	114		206		73
Collection of specific reserves and uncollectible accounts written off, net of recoveries	—		(123)		(83)
Balance, end of year	$335		$221		$138

(1)General and specific reserves charged to expense.

Schedule of Inventories, Net

	December 31,
	2025		2024
	(In thousands)
Raw materials	$8,289		$8,829
Work in process	6,270		6,417
Finished goods	10,768		10,463
Inventories, gross	25,327		25,709
Valuation adjustments for excess and obsolete inventory	(1,067)		(803)
Inventories, net	$24,260		$24,906

Schedule of Property and Equipment

	December 31,
	2025		2024
	(In thousands)
Machinery and equipment	$29,688		$29,718
Leasehold improvements	19,797		19,419
Software	1,895		1,895
Office equipment, furniture, and fixtures	3,009		2,930
Automobiles	416		417
Construction in progress	215		139
Total property and equipment	55,020		54,518
Less: Accumulated depreciation and amortization	(42,086)		(39,094)
Total property and equipment, net	$12,934		$15,424

Schedule of Depreciation and Amortization Expense

	Years Ended December 31,
	2025		2024		2023
(In thousands)
Depreciation and amortization expense	$3,759		$4,046		$4,102

Schedule of Accrued Expenses and Other Liabilities

	December 31,
	2025		2024
	(In thousands)
Accrued expenses and other liabilities, current
Payroll, benefits, incentives and commissions payable	$6,683		$10,179
Warranty reserve	205		1,090
Restructuring accrual	—		2,476
Income taxes payable	2,401		947
Other accrued expenses and other liabilities	2,381		3,036
Total accrued expenses and other liabilities	11,670		17,728
Other liabilities, non-current	1,070		57
Total accrued expenses, and current and non-current other liabilities	$12,740		$17,785

Schedule of Restructuring Expenses

	Segment				Corporate		Total Expense
	Water		Emerging Technology
	(In thousands)
Amount recognized in 2024	1,147		832		497		2,476
Amount recognized in 2025	105		47		161		313
Total restructuring expenses recognized	$1,252		$879		$658		$2,789

Schedule of Restructuring Accrual

The following table presents the change in the Company’s restructuring accrual balances during the year ended December 31, 2025:

		Severance and Benefits
		(In thousands)
Balance, as of December 31, 2024		$2,476
Restructuring provision, net of adjustments		313
Cash paid		(2,789)
Balance, as of December 31, 2025		$—

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