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Inventories, Net - Inventories, Net (Detail) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Inventory [Line Items]    
Total raw materials $ 6,014 $ 6,245
Total work-in-process 19,337 19,983
Total finished goods 4,884 5,062
Total inventories, net 30,235 31,290
Security Products    
Inventory [Line Items]    
Total raw materials 4,157 4,172
Total work-in-process 13,669 14,193
Total finished goods 3,287 3,163
Marine Components    
Inventory [Line Items]    
Total raw materials 1,857 2,073
Total work-in-process 5,668 5,790
Total finished goods $ 1,597 $ 1,899