Segment Information (Tables)

12 Months Ended

Apr. 02, 2017

Segment Reporting [Abstract]

Summary of Segment Information

Sales are primarily within the United States and all assets are located within the United States.

Reportable Segments	Industrial		Water Treatment		Health and Nutrition			Total
(In thousands)
Fiscal Year Ended April 2, 2017:
Sales	$	238,555	$	128,954	$	116,084		$	483,593
Gross profit	38,886		35,962		23,225			98,073
Selling, general, and administrative expenses	21,818		19,798		17,765			59,381
Operating income	17,068		16,164		5,460			38,692
Identifiable assets*	$	159,032	$	53,445	$	192,047		$	404,524
Capital Expenditures	$	10,529	$	7,777	$	3,310		$	21,616
Fiscal Year Ended April 3, 2016:
Sales	$	251,749	$	128,312	$	33,915		$	413,976
Gross profit	37,967		35,470		6,820			80,257
Selling, general, and administrative expenses	22,137		19,261		7,688			49,086
Operating income (loss)	15,830		16,209		(868		)	31,171
Identifiable assets*	$	158,015	$	50,013	$	195,939		$	403,967
Capital Expenditures	$	17,712	$	6,306	$	165		$	24,183
Fiscal Year Ended March 29, 2015:
Sales	$	249,066	$	114,957	$	—		$	364,023
Gross profit	33,619		32,172		—			65,791
Selling, general, and administrative expenses	19,793		15,582		—			35,375
Operating income	13,826		16,590		—			30,416
Identifiable assets*	$	151,157	$	42,860	$	—		$	194,017
Capital Expenditures	$	10,590	$	3,962	$	—		$	14,552

* Unallocated assets, consisting primarily of cash and cash equivalents, investments and prepaid expenses, were $13.1 million at April 2, 2017, $32.8 million at April 3, 2016 and $53.7 million at March 29, 2015.