Inventories, Net - Inventories, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Inventory [Line Items]
Total raw materials	$ 7,392	$ 5,042
Total work-in-process	21,386	16,767
Total finished goods	4,559	3,833
Total inventories, net	33,337	25,642
Security Products
Inventory [Line Items]
Total raw materials	4,670	3,640
Total work-in-process	15,301	12,721
Total finished goods	2,917	2,271
Marine Components
Inventory [Line Items]
Total raw materials	2,722	1,402
Total work-in-process	6,085	4,046
Total finished goods	$ 1,642	$ 1,562