Note 3 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2021

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three Months Ended June 30, 2021
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
AXP	$	1,048,000	$	48,000	$	--	$	1,096,000
BioArchive		223,000		326,000		--		549,000
CAR-TXpress		287,000		30,000		72,000		389,000
Manual Disposables		116,000		--		--		116,000
Other		30,000		--		21,000		51,000
Total	$	1,704,000	$	404,000	$	93,000	$	2,201,000

	Six Months Ended June 30, 2021
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
AXP	$	1,273,000	$	87,000	$	--	$	1,360,000
BioArchive		431,000		868,000		--		1,299,000
CAR-TXpress		542,000		58,000		143,000		743,000
Manual Disposables		245,000		--		--		245,000
Other		37,000		--		34,000		71,000
Total	$	2,528,000	$	1,013,000	$	177,000	$	3,718,000

	Three Months Ended June 30, 2020
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
AXP	$	621,000	$	48,000	$	--	$	669,000
BioArchive		165,000		294,000		--		459,000
CAR-TXpress		550,000		13,000		71,000		634,000
Manual Disposables		198,000		--		--		198,000
Other		238,000		--		44,000		282,000
Total	$	1,772,000	$	355,000	$	115,000	$	2,242,000

	Six Months Ended June 30, 2020
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
AXP	$	2,829,000	$	72,000	$	--	$	2,901,000
BioArchive		329,000		626,000		--		955,000
CAR-TXpress		702,000		25,000		142,000		869,000
Manual Disposables		401,000		--		--		401,000
Other		252,000		--		64,000		316,000
Total	$	4,513,000	$	723,000	$	206,000	$	5,442,000

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

	Remainder of 2021		2022		2023		2024		2025 and beyond		Total
Service revenue	$	690,000	$	886,000	$	412,000	$	151,000	$	85,000	$	2,224,000
Clinical revenue		6,000		13,000		13,000		13,000		160,000		205,000
Exclusivity fee		143,000		286,000		286,000		286,000		476,000		1,477,000
Total	$	839,000	$	1,185,000	$	711,000	$	450,000	$	721,000	$	3,906,000