Inventories

12 Months Ended

Dec. 31, 2019

Inventory Disclosure [Abstract]

Inventory Disclosure [Text Block]

5.  Inventories

Inventories consist of the following:

In thousands	2019		2018
Raw materials	$	1,393	$	1,178
Work-in-progress		512		626
Finished goods		277		397
Total inventory	$	2,182	$	2,201