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Inventories (Tables)
12 Months Ended
Dec. 31, 2021
Inventories (Tables) [Line Items]  
Schedule of Inventory, Current [Table Text Block]

In thousands

2021

 

2020

Raw materials

$

467

 

$

1,124

Work-in-progress

 

-

   

324

Finished goods

 

404

 

 

94

Total inventory

$

871

 

$

1,542