Note 4 - Inventories (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	December 31,
	2019		2018
Raw materials	$	12,058	$	13,688
Work-in-process		8,330		4,626
Finished goods		8,777		6,819
Total	$	29,165	$	25,133
Inventories	$	21,995	$	21,300
Other long-term assets		7,170		3,833