Inventories, net (Tables)

12 Months Ended

Dec. 31, 2023

Inventory Disclosure [Abstract]

Inventories, net

	December 31,		December 31,
	2022		2023
	(In thousands)
Raw materials:
Security Products	$	4,172	$	3,569
Marine Components		2,073		2,169
Total raw materials		6,245		5,738
Work-in-process:
Security Products		14,193		13,879
Marine Components		5,790		5,163
Total work-in-process		19,983		19,042
Finished goods:
Security Products		3,163		3,175
Marine Components		1,899		2,757
Total finished goods		5,062		5,932
Total inventories, net	$	31,290	$	30,712