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

Inventories consisted of the following:

 

 

December 31,

 

(table only in thousands)

 

2021

 

 

2020

 

Raw materials

 

$

13,405

 

 

$

14,262

 

Work in process

 

 

5,147

 

 

 

5,594

 

Finished goods

 

 

674

 

 

 

496

 

Obsolescence allowance

 

 

(2,174

)

 

 

(3,009

)

Total inventories

 

$

17,052

 

 

$

17,343