Note 7 - Goodwill and Acquired Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]

	As of March 31, 2020
(in thousands)	Amortization period (years)	Gross carrying amount		Accumulated Amortization		Net carrying amount
Licenses	5-10	$	639	$	564	$	75
Total		$	639	$	564	$	75

	As of December 31, 2019
(in thousands)	Amortization period (years)	Gross carrying amount		Accumulated Amortization		Net carrying amount
Licenses	5-10	$	680	$	593	$	87
Total		$	680	$	593	$	87