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Inventories, net (Tables)
3 Months Ended
Mar. 31, 2024
Inventory Disclosure [Abstract]  
Inventories, net

December 31, 

March 31, 

    

2023

    

2024

(In thousands)

Raw materials:

 

  

 

  

Security Products

$

3,569

$

3,352

Marine Components

 

2,169

 

1,634

Total raw materials

 

5,738

 

4,986

Work-in-process:

 

  

 

  

Security Products

 

13,879

 

12,969

Marine Components

 

5,163

 

4,746

Total work-in-process

 

19,042

 

17,715

Finished goods:

 

  

 

  

Security Products

 

3,175

 

2,712

Marine Components

 

2,757

 

2,130

Total finished goods

 

5,932

 

4,842

Total inventories, net

$

30,712

$

27,543