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Note 2 - Reportable Segments (Tables)

9 Months Ended

Sep. 30, 2025

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

		Three Months Ended September 30, 2025
(in thousands)		Land and Water Resources				Water Filtration Technology				Total
Revenues			115				4,034				4,149
Costs and expenses:
Cost of sales			985				2,030				3,015
General and administrative			4,730				996				5,726
Depreciation			295				9				304
Total costs and expenses			6,010				3,035				9,045
Operating (loss) income		$	(5,895	)		$	999			$	(4,896	)

		Three Months Ended September 30, 2024
(in thousands)		Land and Water Resources				Water Filtration Technology				Total
Revenues		$	383			$	2,841			$	3,224
Costs and expenses:
Cost of sales			557				1,852				2,409
General and administrative			4,820				455				5,275
Depreciation			292				15				307
Total costs and expenses			5,669				2,322				7,991
Operating income (loss)		$	(5,286	)		$	519			$	(4,767	)

		Nine Months Ended September 30, 2025
(in thousands)		Land and Water Resources				Water Filtration Technology				Total
Revenues			1,111				10,118				11,229
Costs and expenses:
Cost of sales			2,098				5,660				7,758
General and administrative			17,877				2,891				20,768
Depreciation			884				25				909
Total costs and expenses			20,859				8,576				29,435
Operating (loss) income		$	(19,748	)		$	1,542			$	(18,206	)

		Nine Months Ended September 30, 2024
(in thousands)		Land and Water Resources				Water Filtration Technology				Total
Revenues		$	1,369			$	3,489			$	4,858
Costs and expenses:
Cost of sales			1,896				2,369				4,265
General and administrative			15,217				1,093				16,310
Depreciation			866				41				907
Total costs and expenses			17,979				3,503				21,482
Operating loss		$	(16,610	)		$	(14	)		$	(16,624	)

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

		September 30, 2025				December 31, 2024
Operating Segment:
Water and Land Resources		$	118,208			$	123,786
Water Filtration Technology			9,798				10,708
		$	128,006			$	134,494

Schedule of Goodwill [Table Text Block]

		September 30, 2025				December 31, 2024
Operating Segment:
Water and Land Resources		$	3,813			$	3,813
Water Filtration Technology			1,901				1,901
		$	5,714			$	5,714

Property, Plant and Equipment [Table Text Block]

		September 30, 2025
		Water and Land Resources				Water Filtration Technology				Total
Land and land improvements		$	33,089			$	-			$	33,089
Water programs			31,544				-				31,544
Pipeline			22,104				-				22,104
Buildings			1,805				-				1,805
Leasehold improvements, furniture and fixtures			1,616				8				1,624
Machinery and equipment			4,032				394				4,426
Construction in progress			10,512				47				10,559
			104,702				449				105,151
Less accumulated depreciation			(11,280	)			(196	)			(11,476	)
		$	93,422			$	253			$	93,675

		December 31, 2024
		Water and Land Resources				Water Filtration Technology				Total
Land and land improvements		$	33,069			$	-			$	33,069
Water programs			29,383				-				29,383
Pipeline			22,100				-				22,100
Buildings			1,805				-				1,805
Leasehold improvements, furniture and fixtures			1,605				4				1,609
Machinery and equipment			3,870				247				4,117
Construction in progress			6,851				6				6,857
			98,683				257				98,940
Less accumulated depreciation			(10,397	)			(181	)			(10,578	)
		$	88,286			$	76			$	88,362

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