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Note 2 - Reportable Segments (Tables)

6 Months Ended

Jun. 30, 2025

Notes Tables

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

		Three Months Ended June 30, 2025
(in thousands)		Land and Water Resources				Water Filtration Technology				Total
Revenues			431				3,695				4,126
Costs and expenses:
Cost of sales			614				2,051				2,665
General and administrative			5,750				1,185				6,935
Depreciation			294				9				303
Total costs and expenses			6,658				3,245				9,903
Operating (loss) income		$	(6,227	)		$	450			$	(5,777	)

		Three Months Ended June 30, 2024
(in thousands)		Land and Water Resources				Water Filtration Technology				Total
Revenues			350				163				513
Costs and expenses:
Cost of sales			679				173				852
General and administrative			5,917				388				6,305
Depreciation			292				13				305
Total costs and expenses			6,888				574				7,462
Operating loss		$	(6,538	)		$	(411	)		$	(6,949	)

		Six Months Ended June 30, 2025
(in thousands)		Land and Water Resources				Water Filtration Technology				Total
Revenues			996				6,084				7,080
Costs and expenses:
Cost of sales			1,113				3,630				4,743
General and administrative			13,147				1,895				15,042
Depreciation			589				16				605
Total costs and expenses			14,849				5,541				20,390
Operating (loss) income		$	(13,853	)		$	543			$	(13,310	)

		Six Months Ended June 30, 2024
(in thousands)		Land and Water Resources				Water Filtration Technology				Total
Revenues		$	986			$	648			$	1,634
Costs and expenses:
Cost of sales			1,339				517				1,856
General and administrative			10,397				638				11,035
Depreciation			574				26				600
Total costs and expenses			12,310				1,181				13,491
Operating loss		$	(11,324	)		$	(533	)		$	(11,857	)

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

		June 30, 2025				December 31, 2024
Operating Segment:
Water and Land Resources		$	124,954			$	123,786
Water Filtration Technology			11,425				10,708
		$	136,379			$	134,494

Schedule of Goodwill [Table Text Block]

		June 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]

		June 30, 2025
		Water and Land Resources				Water Filtration Technology				Total
Land and land improvements		$	33,089			$	-			$	33,089
Water programs			30,991				-				30,991
Pipeline			22,103				-				22,103
Buildings			1,805				-				1,805
Leasehold improvements, furniture and fixtures			1,616				8				1,624
Machinery and equipment			3,907				378				4,285
Construction in progress			9,871				12				9,883
			103,382				398				103,780
Less accumulated depreciation			(10,985	)			(190	)			(11,175	)
		$	92,397			$	208			$	92,605

		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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