Segment Information (Tables)

9 Months Ended

Jan. 01, 2017

Segment Reporting [Abstract]

Summary of Segment Information

(In thousands)	Industrial		Water Treatment		Health and Nutrition			Total
Three months ended January 1, 2017:
Sales	$	57,083	$	28,098	$	27,170		$	112,351
Gross profit	8,371		7,242		5,299			20,912
Selling, general, and administrative expenses	5,467		4,808		4,641			14,916
Operating income	2,904		2,434		658			5,996
Three months ended December 27, 2015:
Sales	$	59,326	$	29,049	$	—		$	88,375
Gross profit	7,474		7,235		—			14,709
Selling, general, and administrative expenses	5,421		4,714		2,690			12,825
Operating income (loss)	2,053		2,521		(2,690		)	1,884
Nine months ended January 1, 2017:
Sales	$	176,717	$	100,590	$	87,668		$	364,975
Gross profit	28,978		28,943		18,239			76,160
Selling, general and administrative expenses	16,254		14,825		13,834			44,913
Operating income	12,724		14,118		4,405			31,247
Nine months ended December 27, 2015:
Sales	$	185,260	$	99,203	$	—		$	284,463
Gross profit	27,372		27,883		—			55,255
Selling, general and administrative expenses	16,061		14,268		2,690			33,019
Operating income (loss)	11,311		13,615		(2,690		)	22,236