Note 5 - Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

	December 31,
	2019			2018
Customer relationships	$	626		$	626
Patents and trademarks		441			441
Total intangible assets		1,067			1,067
Accumulated amortization		(239	)		(34	)
Net carrying value	$	828		$	1,033

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

	2020		2021		2022		2023		2024
Customer relationships	$	125	$	125	$	125	$	104	$	-
Intellectual property		90		90		90		79		-
Total intangible asset amortization expense	$	215	$	215	$	215	$	183	$	-