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Inventories (Tables)
3 Months Ended
Mar. 31, 2020
Inventories (Tables) [Line Items]  
Schedule of Inventory, Current [Table Text Block]

 

March 31

2020

 

December 31

2019

In thousands

 

Raw materials

$

1,422

 

$

1,393

Work-in-progress

 

537

   

512

Finished goods

 

301

 

 

277

 

$

2,260

 

$

2,182