Note 2 - Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three Months Ended March 31, 2019
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
Device Segment:
AXP	$	1,267,000	$	55,000			$	1,322,000
BioArchive		599,000		415,000				1,014,000
CAR-TXpress		307,000		--				307,000
Manual Disposables		294,000		--				294,000
Other		--		--	$	14,000		14,000
Total Device Segment		2,467,000		470,000		14,000		2,951,000
Clinical Development Segment:
Manual Disposables		6,000		--		--		6,000
Other		5,000		--		--		5,000
Total Clinical Development		11,000		--		--		11,000
Total	$	2,478,000	$	470,000	$	14,000	$	2,962,000

	Three Months Ended March 31, 2018
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
Device Segment:
AXP	$	685,000	$	65,000			$	750,000
BioArchive		423,000		344,000				767,000
Manual Disposables		233,000		--				233,000
CAR-TXpress		18,000		--				18,000
Other		20,000		--	$	17,000		37,000
Total Device Segment		1,379,000		409,000		17,000		1,805,000
Clinical Development Segment:
Manual Disposables		22,000		--		--		22,000
Bone Marrow		--		23,000		--		23,000
Other		--		17,000		--		17,000
Total Clinical Development		22,000		40,000		--		62,000
Total	$	1,401,000	$	449,000	$	17,000	$	1,867,000

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

	Remainder of 2019		2020		2021		2022		2023 and Beyond		Total
Service Revenue	$	1,047,000	$	683,000	$	413,000	$	75,000		--	$	2,218,000
Clinical Revenue		10,000		14,000		14,000		14,000	$	198,000		250,000
Total	$	1,057,000	$	697,000	$	427,000	$	89,000	$	198,000	$	2,468,000

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

	2019		2018
Common stock equivalents of convertible promissory note and accrued interest		50,967,211		--
Vested Series A warrants		404,412		404,412
Unvested Series A warrants (1)		698,529		698,529
Warrants – other		15,578,847		4,030,600
Stock options		2,909,338		1,206,410
Restricted stock units		--		416
Total		70,558,337		6,340,367