Note 16 - Geographical Information (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Revenue from External Customers by Geographic Areas [Table Text Block]

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Net Sales
Spain	$	850	$	1,906	$	1,665	$	3,382
United States		532		131		988		1,945
India		319		478		865		904
China		—		—		—		30
Total Net Sales	$	1,701	$	2,515	$	3,518	$	6,261

Long-lived Assets by Geographic Areas [Table Text Block]

	June 30,		December 31,
	2019		2018
Long-Lived Assets
United States	$	1,117	$	1,180
Spain		10,499		9,707
Total Long-Lived Assets	$	11,616	$	10,887