Note 4 - Inventory, Net (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	December 31,
(in thousands)	201 6		201 5
Raw materials	$	4,928	$	3,925
Finished goods		2,509		3,174
Inventory	$	7,437	$	7,099