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Inventories (Tables)
9 Months Ended
Sep. 30, 2020
Inventories (Tables) [Line Items]  
Schedule of Inventory, Current [Table Text Block]

 

September 30
2020

 

December 31
2019

In thousands

 

Raw materials

$

1,194

 

$

1,393

Work-in-progress

463

512

Finished goods

 

251

 

 

277

 

$

1,908

 

$

2,182