Note 5 - Intangible Assets and Goodwill (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Intangible Assets and Goodwill [Table Text Block]

	Intangible Assets			Goodwill
Balance at January 1, 2020, net	$	1,467,000		$	781,000
Amortization and foreign exchange		(109,000	)		--
Balance at December 31, 2020, net	$	1,358,000		$	781,000
Amortization and foreign exchange		(40,000	)		--
Balance at December 31, 2021, net	$	1,318,000		$	781,000

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

	As of December 31, 2021
	Weighted Average Amortization Period (in Years)		Gross Carrying Amount		Accumulated Amortization		Impairment		Net
Trade names		3	$	52,000	$	52,000	$	--	$	--
Developed technology		10		318,000		143,000		--		175,000
Licenses		7		418,000		418,000		--		--
Device registration		7		78,000		78,000		--		--
Customer relationships		3		425,000		425,000		--		--
Amortizable intangible assets			$	1,291,000	$	1,116,000		--	$	175,000
In process technology				1,143,000		--		--		1,143,000
Total			$	2,434,000	$	1,116,000	$	--	$	1,318,000

	As of December 31, 2020
	Weighted Average Amortization Period (in Years)		Gross Carrying Amount		Accumulated Amortization		Impairment		Net
Trade names		3	$	52,000	$	52,000	$	--	$	--
Developed technology		10		318,000		111,000		--		207,000
Licenses		7		432,000		424,000		--		8,000
Device registration		7		66,000		66,000		--		--
Customer relationships		3		442,000		442,000		--		--
Amortizable intangible assets				1,310,000		1,095,000		--		215,000
In process technology				1,143,000		--		--		1,143,000
Total			$	2,453,000	$	1,095,000	$	--	$	1,358,000

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

Year Ended December 31,
2022		32,000
2023		32,000
2024		32,000
2025		32,000
Thereafter		47,000
Total	$	175,000