Note 3 - Inventories

12 Months Ended

Dec. 31, 2018

Notes to Financial Statements

Inventory Disclosure [Text Block]

3 . Inventories

Inventories consist of the following at

December 

31,

2018

and

2017:

(In thousands)	201 8		201 7
Raw materials	$	1,453	$	583
Work in progress		652		454
Finished goods		1,404		810
Total	$	3,509	$	1,847