Segment Information (Tables)

12 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Summary of Segment Information

Reportable Segments	Industrial		Water Treatment		Health and Nutrition			Total
(In thousands)
Fiscal Year Ended March 31, 2019:
Sales	$	281,860	$	149,490	$	124,976		$	556,326
Gross profit	34,900		37,986		23,050			95,936
Selling, general, and administrative expenses	22,759		19,498		16,861			59,118
Operating income	12,141		18,488		6,189			36,818
Identifiable assets*	$	162,926	$	58,274	$	146,042		$	367,242
Capital expenditures	$	7,319	$	4,506	$	793		$	12,618
Fiscal Year Ended April 1, 2018:
Sales	$	247,374	$	138,465	$	118,330		$	504,169
Gross profit	29,619		36,268		20,873			86,760
Selling, general, and administrative expenses	21,159		19,426		18,818			59,403
Goodwill impairment	—		—		39,116			39,116
Operating income (loss)	8,460		16,842		(37,061		)	(11,759		)
Identifiable assets*	$	165,052	$	58,513	$	153,123		$	376,688
Capital expenditures	$	10,265	$	7,228	$	2,210		$	19,703
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

* Unallocated assets, consisting primarily of cash and cash equivalents, investments and prepaid expenses, were $18.4 million at March 31, 2019, $14.3 million at April 1, 2018 and $13.1 million at April 2, 2017.