Segment Information (Tables)

6 Months Ended

Oct. 01, 2017

Segment Reporting [Abstract]

Summary of Segment Information

(In thousands)	Industrial		Water Treatment		Health and Nutrition		Total
Three months ended October 1, 2017:
Sales	$	58,689	$	38,217	$	28,489	$	125,395
Gross profit	8,308		11,028		4,779		24,115
Selling, general, and administrative expenses	5,295		5,042		4,491		14,828
Operating income	3,013		5,986		288		9,287
Three months ended October 2, 2016:
Sales	$	55,846	$	36,856	$	28,548	$	121,250
Gross profit	10,185		11,072		5,775		27,032
Selling, general, and administrative expenses	5,392		4,953		4,526		14,871
Operating income	4,793		6,119		1,249		12,161
Six months ended October 1, 2017:
Sales	$	122,716	$	76,441	$	59,969	$	259,126
Gross profit	17,281		22,231		10,602		50,114
Selling, general and administrative expenses	11,051		10,299		9,244		30,594
Operating income	6,230		11,932		1,358		19,520
Six months ended October 2, 2016:
Sales	$	119,634	$	72,492	$	60,498	$	252,624
Gross profit	20,607		21,701		12,940		55,248
Selling, general and administrative expenses	10,787		10,017		9,193		29,997
Operating income	9,820		11,684		3,747		25,251