Note 2 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three Months Ended June 30, 2018
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
Device Segment:
AXP	$	879,000	$	66,000	$	--	$	945,000
BioArchive		449,000		311,000		--		760,000
Manual Disposables		229,000		--		--		229,000
Other		8,000		--		16,000		24,000
Total Device Segment		1,565,000		377,000		16,000		1,958,000
Clinical Development Segment:
Manual Disposables		1,000		--		--		1,000
Bone Marrow		--		38,000		--		38,000
Other		--		7,000		--		7,000
Total Clinical Development		1,000		45,000		--		46,000
Total	$	1,566,000	$	422,000	$	16,000	$	2,004,000

	Six Months Ended June 30, 2018
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
Device Segment:
AXP	$	1,564,000	$	131,000	$	--	$	1,695,000
BioArchive		872,000		655,000		--		1,527,000
Manual Disposables		462,000		--		--		462,000
Other		46,000		--		33,000		79,000
Total Device Segment		2,944,000		786,000		33,000		3,763,000
Clinical Development Segment:
Manual Disposables		23,000		--		--		23,000
Bone Marrow		--		61,000		--		61,000
Other		--		24,000		--		24,000
Total Clinical Development		23,000		85,000		--		108,000
Total	$	2,967,000	$	871,000	$	33,000	$	3,871,000

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

	Remainder of 2018		2019		2020		2021 and beyond		Total
Service revenue	$	749,000	$	683,000	$	209,000	$	--	$	1,641,000
Clinical revenue		7,000		15,000		15,000		232,000		269,000
Total	$	756,000	$	698,000	$	224,000	$	232,000	$	1,910,000

Schedule of Intangible Assets and Goodwill [Table Text Block]

	Intangible Assets			Goodwill
Balance at December 31, 2017, net	$	21,629,000		$	13,976,000
Amortization and foreign exchange (current year)		(83,000	)		--
Impairment loss		(14,507,000	)		(12,695,000	)
Balance at June 30, 2018, net	$	7,039,000		$	1,281,000

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

	2018		2017
Vested Series A warrants		404,412		404,412
Unvested Series A warrants (1)		698,529		698,529
Warrants – other		13,197,267		3,725,782
Stock options		1,200,470		397,388
Restricted stock units		--		59,694
Total		15,500,678		5,285,805