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Inventories, Net - Inventories, Net (Detail) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Inventory [Line Items]    
Total raw materials $ 7,249 $ 5,042
Total work-in-process 20,958 16,767
Total finished goods 5,096 3,833
Total inventories, net 33,303 25,642
Security Products    
Inventory [Line Items]    
Total raw materials 4,691 3,640
Total work-in-process 15,017 12,721
Total finished goods 3,111 2,271
Marine Components    
Inventory [Line Items]    
Total raw materials 2,558 1,402
Total work-in-process 5,941 4,046
Total finished goods $ 1,985 $ 1,562