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

 

June 30,
2020

 

December 31,
2019

In thousands

 

Raw materials

$

1,474

 

$

1,393

Work-in-progress

402

512

Finished goods

 

277

 

 

277

 

$

2,153

 

$

2,182