Note 3 - Intangible Assets and Goodwill (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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		(152,000	)		--
Impairment loss		(19,886,000	)		(13,195,000	)
Balance at December 31, 2018, net	$	1,591,000		$	781,000
Amortization and foreign exchange		(124,000	)		--
Balance at December 31, 2019, net	$	1,467,000		$	781,000

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	As of December 31, 2019
	Weighted Average Amortization Period (in Years)	Gross Carrying Amount		Accumulated Amortization		Impairment		Net
Trade names	3	$	53,000	$	45,000	$	--	$	8,000
Developed technology	10		318,000		79,000		--		239,000
Licenses	7		437,000		367,000		--		70,000
Device registration	7		66,000		66,000		--		--
Customer relationships	3		443,000		436,000		--		7,000
Amortizable intangible assets			1,317,000		993,000		--		324,000
In process technology			1,143,000		--		--		1,143,000
Clinical protocols			--		--		--		--
Total		$	2,460,000	$	993,000	$	--	$	1,467,000

	As of December 31, 2018
	Weighted Average Amortization Period (in Years)	Gross Carrying Amount		Accumulated Amortization		Impairment		Net
Trade names	3	$	54,000	$	38,000			$	16,000
Developed technology	10		318,000		48,000				270,000
Licenses	7		448,000		307,000				141,000
Device registration	7		84,000		68,000	$	16,000		--
Customer relationships	3		451,000		430,000		--		21,000
Amortizable intangible assets			1,355,000		891,000		16,000		448,000
In process technology			1,143,000		--		--		1,143,000
Clinical protocols			19,870,000		--		19,870,000		--
Total		$	22,368,000	$	891,000	$	19,886,000	$	1,591,000

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Year Ended December 31,
2020		109,000
2021		40,000
2022		32,000
2023		32,000
2024		32,000
Thereafter		79,000
Total	$	324,000