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Inventories (Tables)
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventories

Inventories consist of the following (in thousands):

 

 

 

December 31,

 

 

 

2021

 

 

2020

 

Raw materials and purchased parts

 

$

9,163

 

 

$

6,498

 

Work in progress

 

 

4,157

 

 

 

776

 

Finished goods

 

 

21,365

 

 

 

21,572

 

Total inventories

 

$

34,685

 

 

$

28,846