Note 6 - Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Goodwill [Table Text Block]

Balance at December 31, 2014	$	50
Foreign currency adjustment		(5	)
Balance at December 31, 2015		45
Imugen acquisition (Note 17)		2,645
Immunetics acquisition (Note 17)		1,177
Impairment charge – Boulder goodwill		(43	)
Foreign currency adjustment		(2	)
Balance at December 31, 2016	$	3,822

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

	As of December 31 , 2016
	Amortization period (years)				Gross carrying amount		Accumulated Amortization		Net carrying amount
Imugen in-process research and development			Indefinite		$	9,200	$	—	$	9,200
Imugen technology - clinical			15			5,100		170		4,930
Imugen customer relationships			10			2,700		135		2,565
Imugen trademarks / trade names			16			1,900		59		1,841
Immunetics in-process research and development			Indefinite			6,970		—		6,970
Immunetics technology – clinical			15			860		9		851
Immunetics customer relationships		5	-	11		400		11		389
Immunetics trade name			5			290		9		281
Immunetics grants			2			50		4		46
Other		5	-	10		632		518		114
Total					$	28,102	$	915	$	27,187

	As of December 31, 2015
	Amortization period (years)				Gross carrying amount		Accumulated Amortization		Net carrying amount
Boulder in-process research and development			Indefinite		$	1,782	$	—	$	1,782
Other		5	-	10		758		579		179
Total					$	2,540	$	579	$	1,961