Note 8 - Revenue (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
United States	$	1,500,000	$	1,535,000	$	4,589,000	$	4,973,000
China		29,000		364,000		77,000		1,570,000
United Arab Emirates		259,000		--		439,000		--
Other		406,000		216,000		1,934,000		1,264,000
Total	$	2,194,000	$	2,115,000	$	7,039,000	$	7,807,000

	Three Months Ended September 30, 2023
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
AXP	$	1,486,000	$	88,000	$	--	$	1,574,000
BioArchive		131,000		322,000		--		453,000
CAR-TXpress		42,000		34,000		71,000		147,000
Manual Disposables		8,000		--		--		8,000
Other		6,000		--		6,000		12,000
Total	$	1,673,000	$	444,000	$	77,000	$	2,194,000

	Nine Months Ended September 30, 2023
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
AXP	$	4,245,000	$	184,000	$	--	$	4,429,000
BioArchive		879,000		1,020,000		--		1,899,000
CAR-TXpress		101,000		109,000		213,000		423,000
Manual Disposables		229,000		--		--		229,000
Other		41,000		--		18,000		59,000
Total	$	5,495,000	$	1,313,000	$	231,000	$	7,039,000

	Three Months Ended September 30, 2022
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
AXP	$	1,034,000	$	75,000	$	--	$	1,109,000
BioArchive		201,000		321,000		--		522,000
CAR-TXpress		190,000		44,000		72,000		306,000
Manual Disposables		150,000		--		--		150,000
Other		20,000		--		8,000		28,000
Total	$	1,595,000	$	440,000	$	80,000	$	2,115,000

	Nine Months Ended September 30, 2022
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
AXP	$	4,668,000	$	171,000	$	--	$	4,839,000
BioArchive		694,000		924,000		--		1,618,000
CAR-TXpress		551,000		146,000		214,000		911,000
Manual Disposables		357,000		--		--		357,000
Other		59,000		--		23,000		82,000
Total	$	6,329,000	$	1,241,000	$	237,000	$	7,807,000

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]

	Remainder of 2023		2024		2025		2026		2027 and beyond		Total
Service revenue	$	319,000	$	741,000	$	252,000	$	--	$	--	$	1,312,000
Device revenue (1)		21,000		692,000		--		--		--		713,000
Exclusivity fee		71,000		286,000		286,000		190,000		--		833,000
Other		3,000		13,000		13,000		13,000		97,000		139,000
Total	$	414,000	$	1,732,000	$	551,000	$	203,000	$	97,000	$	2,997,000