Note 6 - Goodwill and Acquired Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

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

	As of September 30, 2019
(in thousands)	Amortization period (years)	Gross carrying amount		Accumulated Amortization		Net carrying amount
Licenses	5-10	$	652	$	609	$	43
Total		$	652	$	609	$	43

	As of December 31, 2018
(in thousands)	Amortization period (years)	Gross carrying amount		Accumulated Amortization		Net carrying amount
Licenses	5-10	$	652	$	591	$	61
Total		$	652	$	591	$	61