Note 2 - Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three Months Ended September 30, 2019
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
Device Segment:
AXP	$	2,255,000	$	51,000	$	--	$	2,306,000
BioArchive		243,000		351,000		--		594,000
Manual Disposables		212,000		--		--		212,000
CAR-TXpress		875,000		6,000		33,000		914,000
Other		--		--		19,000		19,000
Total Device Segment		3,585,000		408,000		52,000		4,045,000
Clinical Development Segment:
Manual Disposables		9,000		--		--		9,000
Other		--		4,000		--		4,000
Total Clinical Development		9,000		4,000		--		13,000
Total		3,594,000		412,000		52,000	$	4,058,000

	Nine Months Ended September 30, 2019
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
Device Segment:
AXP	$	6,550,000	$	160,000	$	--	$	6,710,000
BioArchive		1,274,000		1,117,000		--		2,391,000
Manual Disposables		711,000		--		--		711,000
CAR-TXpress		1,365,000		6,000		33,000		1,404,000
Other		--		--		40,000		40,000
Total Device Segment		9,900,000		1,283,000		73,000		11,256,000
Clinical Development Segment:
Manual Disposables		53,000		--		--		53,000
Other		5,000		11,000		--		16,000
Total Clinical Development		58,000		11,000		--		69,000
Total		9,958,000		1,294,000		73,000		11,325,000

	Three Months Ended September 30, 2018
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
Device Segment:
AXP	$	1,396,000	$	70,000	$	--	$	1,466,000
BioArchive		485,000		314,000		--		799,000
Manual Disposables		254,000		--		--		254,000
CAR-TXpress		517,000		--		--		517,000
Other		--		--		23,000		23,000
Total Device Segment		2,652,000		384,000		23,000		3,059,000
Clinical Development Segment:
Manual Disposables		8,000		--		--		8,000
Bone Marrow		--		40,000		--		40,000
Other		--		6,000		--		6,000
Total Clinical Development		8,000		46,000		--		54,000
Total	$	2,660,000	$	430,000	$	23,000	$	3,113,000

	Nine Months Ended September 30, 2018
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
Device Segment:
AXP	$	2,930,000	$	201,000	$	--	$	3,131,000
BioArchive		1,357,000		969,000		--		2,326,000
Manual Disposables		716,000		--		--		716,000
CAR-TXpress		547,000		--		--		547,000
Other		46,000		--		56,000		102,000
Total Device Segment		5,596,000		1,170,000		56,000		6,822,000
Clinical Development Segment:
Manual Disposables		31,000		--		--		31,000
Bone Marrow		--		101,000		--		101,000
Other		--		30,000		--		30,000
Total Clinical Development		31,000		131,000		--		162,000
Total	$	5,627,000	$	1,301,000	$	56,000	$	6,984,000

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	2019		2018
Common stock equivalents of convertible promissory notes and accrued interest		6,013,667		4,626,667
Vested Series A warrants		40,442		40,442
Unvested Series A warrants (1)		69,853		69,853
Warrants – other		1,300,091		1,319,728
Stock options		296,029		118,830
Total		7,720,082		6,175,520