Note 8 - Inventories

3 Months Ended

Mar. 31, 2019

Notes to Financial Statements

Inventory Disclosure [Text Block]

8. Inventories

Inventories consist of the following:

	March 31, 2019		December 31, 2018
Raw materials	$	12,751	$	13,688
Work-in-process		5,972		4,626
Finished goods		7,536		6,819
Total	$	26,259	$	25,133
Inventories	$	22,617	$	21,300
Other long-term assets		3,642		3,833

Other long-term assets include

$3.6

million and

$3.8

million of inventory expected to remain on hand beyond

one

year as of

March 31, 2019

and

December 31, 2018,

respectively.