Inventories, net (Tables)

3 Months Ended

Mar. 31, 2013

Inventory Disclosure [Abstract]

Inventories, net

	December 31, 2012		March 31, 2013
	(In thousands)
Raw materials:
Security Products	$	2,310	$	2,608
Marine Components		943		1,070
Total raw materials		3,253		3,678
Work-in-process:
Security Products		5,458		5,592
Marine Components		444		462
Total work-in-process		5,902		6,054
Finished goods:
Security Products		1,578		1,598
Marine Components		490		560
Total finished goods		2,068		2,158
Total inventories, net	$	11,223	$	11,890