Note 7 - Inventories (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	2017		2016
Raw materials	$	3,424	$	2,695
Work in process		791		728
Inventory consigned to others		64		81
Finished goods		687		172
Total inventories	$	4,966	$	3,676