Intangible assets

12 Months Ended

Dec. 31, 2020

10.	Intangible assets

Changes to intangible assets during 2020 and 2019 consisted of the following:


(Euros in thousands)	Patents and licenses			Software licenses			Total
Cost as of January 1, 2019		1,201			551			1,752
Additions		—			91			91
Currency translation differences		19			1			20

Cost as of December 31, 2019		1,220			643			1,863

Accumulated amortization as of January 1, 2019		314			399			713
Additions		24			87			111
Currency translation differences		31			—			31

Accumulated amortization as of December 31, 2019		369			486			855

Net book value as of December 31, 2019		851			157			1,008


Cost as of January 1, 2020		1,220			643			1,863
Additions		—			104			104
Currency translation differences		(88	)		(9	)		(97	)

Cost as of December 31, 2020		1,132			738			1,870
Accumulated amortization as of January 1, 2020		369			486			855
Additions		56			71			126
Currency translation differences		(22	)		(3	)		(25	)

Accumulated amortization as of December 31, 2020		403			554			956

Net book value as of December 31, 2020		730			184			914

Amortization expense is classified as follows within the Consolidated Statement of Loss:


	Year ended December 31,
	2020		2019		2018
	(Euros in thousands)
Research and development expenses		31		28		9
General and administrative expenses		95		83		109

Total		126		111		118