Note 6 - Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

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

	Gross Carrying		Accumulated			Net Carrying
	Amount		Amortization			Value
Customer relationships:
Balance as of December 31, 2020	$	982	$	(911	)	$	71
Balance as of December 31, 2019	$	1,275	$	(1,106	)	$	169

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

2021	$	71
2022	$	-
Total	$	71