Note 11 - Business Segment Information (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Revenue
BioLargo corporate	$	—		$	2		$	—		$	4
ONM Environmental		2,513			1,199			7,374			2,499
BLEST		843			401			1,742			1,613
BETI		—			—			—			—
Water		22			1			31			1
Clyra Medical		14			17			20			34
Intersegment revenue		(720	)		(120	)		(1,307	)		(365	)
Total	$	2,672		$	1,500		$	7,860		$	3,786
Research and development expense
BioLargo corporate	$	(234	)	$	(140	)	$	(665	)	$	(570	)
ONM Environmental		(14	)		—			(14	)		—
BLEST		(433	)		(100	)		(971	)		(288	)
BETI		(537	)		—			(840	)		—
Water		(128	)		(119	)		(401	)		(446	)
Clyra Medical		(68	)		(31	)		(262	)		(73	)
Intersegment R&D		720			119			1,307			359
Total	$	(694	)	$	(271	)	$	(1,846	)	$	(1,018	)
Operating income (loss)
BioLargo corporate	$	(797	)	$	(783	)	$	(2,230	)	$	(2,925	)
ONM Environmental		969			400			2,786			418
BLEST		(568	)		(179	)		(1,388	)		(158	)
BETI		(559	)		—			(943	)		—
Water		(155	)		(141	)		(549	)		(572	)
Clyra Medical		(427	)		(240	)		(1,250	)		(736	)
Total	$	(1,537	)	$	(943	)	$	(3,574	)	$	(3,973	)
Interest income (expense)
BioLargo corporate	$	(3	)	$	(6	)	$	(43	)	$	(18	)
ONM Environmental		(1	)		—			(5	)		—
Clyra Medical		(8	)		(8	)		(25	)		(24	)
Water		—			—			1			—
Total	$	(12	)	$	(14	)	$	(72	)	$	(42	)

As of September 30, 2023	BioLargo		ONM		Clyra		BLEST		Water		BETI		Elimination			Total
Tangible assets	$	579	$	3,300	$	1,202	$	480	$	89	$	144	$	(41	)	$	5,753
Right of use leased asset		72		—		—		705		—		—		—			777
Investment in South Korean joint venture		15		—		—		—		—		—		—			15
Total	$	666	$	3,300	$	1,202	$	1,185	$	89	$	144	$	(41	)	$	6,545

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