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Business and Geographic Segments (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Schedule of Business Segment Information

		Years ended December 31,
		2015				2016				2017
		(In thousands)
Net sales:
Security Products		$	95,614			$	94,693			$	96,600
Marine Components			13,380				14,227				15,435
Total		$	108,994			$	108,920			$	112,035
Operating income (loss):
Security Products		$	18,585			$	19,981			$	19,182
Marine Components			1,433				1,707				1,342
Corporate			(6,047	)			(6,114	)			(5,289	)
Total operating income			13,971				15,574				15,235
Interest income			50				390				1,929

Income before income taxes		$	14,021			$	15,964			$	17,164


Depreciation and amortization:
Security Products		$	2,831			$	3,025			$	3,072
Marine Components			695				663				591
Corporate			10				10				10
Total		$	3,536			$	3,698			$	3,673
Capital expenditures:
Security Products		$	3,805			$	3,017			$	2,389
Marine Components			408				153				405
Corporate			5				5				2
Total		$	4,218			$	3,175			$	2,796

Business Segment Information by Geographical Areas


Net sales point of destination:
United States		$	103,737			$	98,526			$	103,646
Canada			2,352				7,515				5,353
Mexico			1,334				1,315				1,486
Other			1,571				1,564				1,550
Total		$	108,994			$	108,920			$	112,035

		December 31,
		2015				2016				2017
		(In thousands)
Total assets:
Security Products		$	72,561			$	73,345			$	72,961
Marine Components			12,761				12,209				11,704
Corporate and eliminations			49,470				58,426				66,294
Total		$	134,792			$	143,980			$	150,959