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Inventories, Net (Tables)
6 Months Ended
Jun. 30, 2022
Inventory Disclosure [Abstract]  
Inventories, Net

December 31, 

June 30, 

    

2021

    

2022

(In thousands)

Raw materials:

 

  

 

  

Security Products

$

3,640

$

4,691

Marine Components

 

1,402

 

2,558

Total raw materials

 

5,042

 

7,249

Work-in-process:

 

  

 

  

Security Products

 

12,721

 

15,017

Marine Components

 

4,046

 

5,941

Total work-in-process

 

16,767

 

20,958

Finished goods:

 

  

 

  

Security Products

 

2,271

 

3,111

Marine Components

 

1,562

 

1,985

Total finished goods

 

3,833

 

5,096

Total inventories, net

$

25,642

$

33,303