Note 12 - Business Segment Information (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

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

	2022			2021
Revenues
BioLargo corporate	$	5		$	7
ONM Environmental		4,374			1,419
BLEST		1,943			1,635
Clyra Medical		56			139
BioLargo Water		1			12
Intersegment revenue		(495	)		(681	)
Total	$	5,884		$	2,531
Research and development
BioLargo corporate	$	(674	)	$	(1,001	)
BLEST		(469	)		(488	)
Clyra Medical		(110	)		(66	)
BioLargo Water		(565	)		(486	)
BioLargo corporate - intersegment		499			674
Total	$	(1,319	)	$	(1,367	)
Operating income (loss)
BioLargo corporate	$	(3,971	)	$	(5,688	)
ONM Environmental		1,130			(511	)
BLEST		(452	)		(629	)
Clyra Medical		(1,383	)		666
BioLargo Water		(714	)		(616	)
Total	$	(5,390	)	$	(6,778	)
Interest expense
BioLargo corporate	$	(24	)	$	(118	)
Clyra Medical		(29	)		(116	)
Total	$	(53	)	$	(234	)
Net income (loss)
BioLargo corporate	$	(3,995	)	$	(5,781	)
ONM Environmental		1,304			(511	)
BLEST		(425	)		(629	)
Clyra Medical		(1,412	)		593
BioLargo Water		(604	)		(566	)
Consolidated net loss	$	(5,132	)	$	(6,894	)

As of December 31, 2022	BioLargo		ONM		Clyra		BLEST		Water		Elimination			Total
Tangible assets	$	669	$	2,064	$	631	$	441	$	194	$	(41	)	$	3,958
Right of use		136		—		—		731		—		—			867
Investment in South  Korean joint venture		33		—		—		—		—		—			33
Total	$	838	$	2,064	$	631	$	1,172	$	194	$	(41	)	$	4,858

As of December 31, 2021	BioLargo		ONM		Clyra		BLEST		Water		Elimination			Total
Tangible assets	$	555	$	451	$	816	$	595	$	152	$	(47	)	$	2,522
Right of use		222		—		—		231		—		—			453
Investment in South Korean joint venture		48		—		—		—		—		—			48
Total	$	825	$	451	$	816	$	433	$	152	$	(47	)	$	3,023