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Inventories (Tables)
6 Months Ended
Jun. 30, 2021
Inventories (Tables) [Line Items]  
Schedule of Inventory, Current [Table Text Block]

June 30

December 31

In thousands

 

2021

 

2020

Raw materials

 

$

864

 

$

1,124

Work-in-progress

263

324

Finished goods

 

 

13

 

 

94

 

 

$

1,140

 

$

1,542