Note 5 - Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

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

	March 31, 2021							December 31, 2020
	Gross							Gross
	Carrying		Accumulated			Net Book		Carrying		Accumulated			Net Book
	Amount		Amortization			Value		Amount		Amortization			Value
Customer relationships	$	982	$	(936	)	$	46	$	982	$	(911	)	$	71

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

Remainder of 2021	$	46
2022		—
Total	$	46