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Inventories
12 Months Ended
Dec. 31, 2022
Inventories [Line Items]  
Inventory Disclosure [Text Block]

5.  Inventories

 

Inventories consist of the following:

 

In thousands

2022

 

2021

Raw materials

$

2,535

 

$

467

Work-in-progress

 

-

   

-

Finished goods

 

187

 

 

404

Total inventory

$

2,722

 

$

871