Hawkins (HWKN) 10-Q 31 Jul 19 2020 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Jun. 30, 2019	Jul. 26, 2019
Document Information [Line Items]
Entity Registrant Name	HAWKINS INC
Entity Central Index Key	0000046250
Document Type	10-Q
Document Period End Date	Jun. 30, 2019
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--03-29
Entity Filer Category	Accelerated Filer
Entity Emerging Growth Company	false
Entity interactive data	Yes
Current reporting status	Yes
Entity Shell Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding		10,665,227

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 5,607	$ 9,199
Trade receivables — less allowance for doubtful accounts: $916 as of June 30, 2019 and $620 as of March 31, 2019	69,026	63,966
Inventories	58,693	60,482
Income taxes receivable	0	527
Prepaid expenses and other current assets	4,777	5,235
Total current assets	138,103	139,409
PROPERTY, PLANT, AND EQUIPMENT:
PROPERTY, PLANT, AND EQUIPMENT:	253,544	244,861
Less accumulated depreciation	129,996	126,233
Net property, plant, and equipment	123,548	118,628
OTHER ASSETS:
Right-of-use assets	9,941	0
Goodwill	58,440	58,440
Intangible assets, net	64,457	65,726
Other	4,468	3,396
Total other assets	137,306	127,562
Total assets	398,957	385,599
CURRENT LIABILITIES:
Accounts payable — trade	31,971	29,314
Accrued payroll and employee benefits	5,947	12,483
Income tax payable	2,983	0
Current portion of long-term debt	9,907	9,907
Short-term lease liability	1,707	0
Container deposits	1,362	1,299
Other current liabilities	1,812	2,393
Total current liabilities	55,689	55,396
LONG-TERM DEBT, LESS CURRENT PORTION	74,682	74,658
LONG-TERM LEASE LIABILITY	8,206	0
PENSION WITHDRAWAL LIABILITY	5,233	5,316
DEFERRED INCOME TAXES	26,606	26,673
OTHER LONG-TERM LIABILITIES	5,149	5,695
Total liabilities	175,565	167,738
COMMITMENTS AND CONTINGENCIES	0	0
SHAREHOLDERS’ EQUITY:
Common stock; authorized: 30,000,000 shares of $0.05 par value; 10,563,774 and 10,592,450 shares issued and outstanding as of June 30, 2019 and March 31, 2019, respectively	528	530
Additional paid-in capital	50,974	52,609
Retained earnings	171,752	164,405
Accumulated other comprehensive income	138	317
Total shareholders’ equity	223,392	217,861
Total liabilities and shareholders’ equity	$ 398,957	$ 385,599

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019
Statement of Financial Position [Abstract]
Allowance for doubtful accounts, trade receivables	$ 916	$ 620
Shares authorized	30,000,000	30,000,000
Common stock, par value (usd per share)	$ 0.05	$ 0.05
Common Stock, Shares, Issued	10,563,774	10,592,450
Common Stock, Shares, Outstanding	10,563,774	10,592,450

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jul. 01, 2018
Income Statement [Abstract]
Sales	$ 147,336	$ 149,800
Cost of sales	(118,539)	(121,343)
Gross profit	28,797	28,457
Selling, general and administrative expenses	(14,836)	(14,979)
Operating income	13,961	13,478
Interest expense, net	(763)	(934)
Other income (expense)	117	(2)
Income before income taxes	13,315	12,542
Income tax expense	(3,508)	(3,419)
Net income	$ 9,807	$ 9,123
Weighted average number of shares outstanding - basic	10,604,306	10,648,226
Weighted average number of shares outstanding - diluted	10,665,709	10,682,060
Basic earnings per share
Basic earnings per share	$ 0.92	$ 0.86
Diluted earnings per share
Diluted earnings per share	0.92	0.85
Cash dividends declared per common share	$ 0.23	$ 0

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jul. 01, 2018
Net income	$ 9,807	$ 9,123
Other comprehensive income (loss), net of tax:
Unrealized (loss) gain on interest rate swap	(179)	27
Total comprehensive income	9,628	9,150
Interest Rate Swap [Member]
Other comprehensive income (loss), net of tax:
Unrealized (loss) gain on interest rate swap	$ (179)	$ 27

Condensed Consolidated Statem_3

Condensed Consolidated Statement of Shareholder's Equity Statement - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]
Shares outstanding, beginning balance at Apr. 01, 2018		10,631,992
Stockholders' equity, beginning balance at Apr. 01, 2018	$ 202,247	$ 532	$ 53,877	$ 147,242	$ 596
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared	0
Share-based compensation expense	470		470
Vesting of restricted stock (shares)		24,567
Vesting of restricted stock	0	$ 1	(1)
Shares surrendered for payroll taxes (shares)		(8,105)
Shares surrendered for payroll taxes	(265)	$ 0	(265)
ESPP shares issued (shares)		22,531
ESPP shares issued	$ 677	$ 1	676
Shares repurchased (shares)	0	0
Shares repurchased	$ 0
Other comprehensive income, net of tax	27				27
Net income	9,123			9,123
Shares outstanding, ending balance at Jul. 01, 2018		10,670,985
Stockholders' equity, ending balance at Jul. 01, 2018	212,279	$ 534	54,757	156,365	623
Shares outstanding, beginning balance at Mar. 31, 2019		10,592,450
Stockholders' equity, beginning balance at Mar. 31, 2019	217,861	$ 530	52,609	164,405	317
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared	(2,460)			(2,460)
Share-based compensation expense	509		509
Vesting of restricted stock (shares)		27,620
Vesting of restricted stock	0	$ 1	(1)
Shares surrendered for payroll taxes (shares)		(9,160)
Shares surrendered for payroll taxes	$ (343)	$ (1)	(342)
Shares repurchased (shares)	(47,136)	(47,136)
Shares repurchased	$ (1,803)	$ (2)	(1,801)
Other comprehensive income, net of tax	(179)				(179)
Net income	9,807			9,807
Shares outstanding, ending balance at Jun. 30, 2019		10,563,774
Stockholders' equity, ending balance at Jun. 30, 2019	$ 223,392	$ 528	$ 50,974	$ 171,752	$ 138

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jul. 01, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 9,807	$ 9,123
Reconciliation to cash flows:
Depreciation and amortization	5,353	5,507
Operating leases	69	0
Amortization of debt issuance costs	23	34
Loss (gain) on deferred compensation assets	(117)	2
Stock compensation expense	509	470
Loss on property disposals	6	78
Changes in operating accounts providing (using) cash:
Trade receivables	(5,044)	(4,432)
Inventories	1,789	(6,631)
Accounts payable	2,742	3,536
Accrued liabilities	(7,667)	(3,708)
Income taxes	3,510	3,419
Other	(870)	(583)
Net cash provided by operating activities	10,110	6,815
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant, and equipment	(9,159)	(2,371)
Other	63	35
Net cash used in investing activities	(9,096)	(2,336)
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash dividends paid	(2,460)	(4,704)
New shares issued	0	677
Shares surrendered for payroll taxes	(343)	(265)
Shares repurchased	(1,803)	0
Net proceeds from revolver borrowings	0	2,500
Payments on term loan borrowings	0	(2,500)
Net cash used in financing activities	(4,606)	(4,292)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(3,592)	187
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	9,199	4,990
CASH AND CASH EQUIVALENTS, END OF PERIOD	5,607	5,177
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for interest	756	872
Noncash investing activities - capital expenditures in accounts payable	$ 410	$ 211

Basis of Presentation

Basis of Presentation	3 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the instructions for Form 10-Q and, accordingly, do not include all information and footnotes required by generally accepted accounting principles for complete financial statements. These financial statements should be read in conjunction with the consolidated financial statements and footnotes included in our Annual Report on Form 10-K for the fiscal year ended March 31, 2019 , previously filed with the Securities and Exchange Commission (“SEC”). In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments necessary to present fairly our financial position and the results of our operations and cash flows for the periods presented. All adjustments made to the interim condensed consolidated financial statements were of a normal recurring nature. All significant intercompany accounts and transactions have been eliminated in consolidation. The results of operations for the three months ended June 30, 2019 are not necessarily indicative of the results that may be expected for the full year. References to fiscal 2019 refer to the fiscal year ended March 31, 2019 and references to fiscal 2020 refer to the fiscal year ending March 29, 2020 . Use of Estimates. The preparation of condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, particularly receivables, inventories, property, plant and equipment, right-of-use assets, goodwill, intangibles, accrued expenses, short-term and long-term lease liability, income taxes and related accounts and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Accounting Policies. The accounting policies we follow are set forth in Note 1 – Nature of Business and Significant Accounting Policies to our consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended March 31, 2019 , previously filed with the SEC. With the exception of our policy regarding leases (see below), there has been no significant change in our accounting policies since the end of fiscal 2019 . Leases. The Company determines if an arrangement is a lease at inception. Right-of-use (“ROU”) assets include operating leases. Lease liabilities for operating leases are classified in “short-term lease liabilities” and “long-term lease liabilities” in our condensed consolidated balance sheet. Operating assets and liabilities are recognized at commencement date based on the present value of the lease payments over the lease term. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. We use the implicit rate when readily determinable. Lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the lease term. Lease and non-lease components are generally accounted for separately for real estate leases. For non-real estate leases, we account for the lease and non-lease components as a single lease component. Recently Issued Accounting Pronouncements In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, Financial Instruments - Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments . The amendments in this update replace the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses on instruments within its scope, including trade receivables. This update is intended to provide financial statement users with more decision-useful information about the expected credit losses. This ASU is effective for annual periods and interim periods for those annual periods beginning after December 15, 2019, which for us is our fiscal year beginning March 30, 2020. Entities may early adopt beginning after December 15, 2018. We are currently evaluating the impact of the adoption of ASU 2016-13 on our consolidated financial statements. Recently Adopted Accounting Pronouncements On April 1, 2019, we adopted ASU 2016-02, which provides new accounting guidance requiring lessees to recognize most leases as assets and liabilities on the balance sheet and disclose key information about leasing arrangements. The new standard establishes a ROU model that requires a lessee to recognize a ROU asset and lease liability on the balance sheet for all leases with a term longer than 12 months. Leases will be classified as finance or operating, with classification affecting the pattern and expense recognition in the income statement. We adopted this ASU using the modified retrospective method. See Note 11 to the condensed consolidated financial statements for further details.

Revenue

Revenue	3 Months Ended
	Jun. 30, 2019
Disaggregation of Revenue [Abstract]
Revenue Recognition, Deferred Revenue [Policy Text Block]	Revenue Our revenue arrangements generally consist of a single performance obligation to transfer promised goods or services. We disaggregate revenues from contracts with customers by both operating segments and types of product sold. Reporting by operating segment is pertinent to understanding our revenues, as it aligns to how we review the financial performance of our operations. Types of products sold within each operating segment help us to further evaluate the financial performance of our segments. The following tables disaggregate external customer net sales by major revenue stream for the three months ended June 30, 2019 and July 1, 2018 : Three months ended June 30, 2019 (In thousands) Industrial Water Health and Total Bulk / Distributed specialty products (1) $ 15,090 $ 4,708 $ 24,603 $ 44,401 Manufactured, blended or repackaged products (2) 59,394 38,150 4,144 101,688 Other 841 394 12 1,247 Total external customer sales $ 75,325 $ 43,252 $ 28,759 $ 147,336 Three months ended July 1, 2018 (In thousands) Industrial Water Health and Total Bulk / Distributed specialty products (1) $ 14,936 $ 5,822 $ 30,677 $ 51,435 Manufactured, blended or repackaged products (2) 58,032 34,659 4,185 96,876 Other 1,050 388 51 1,489 Total external customer sales $ 74,018 $ 40,869 $ 34,913 $ 149,800 (1) For our Industrial and Water Treatment segments, this line includes our bulk products that we do not modify in any way, but receive, store, and ship from our facilities, or direct ship to our customers in large quantities. For our Health and Nutrition segment, this line includes our non-manufactured distributed specialty products, which may be sold out of one of our facilities or direct shipped to our customers. (2) For our Industrial and Water Treatment segments, this line includes our non-bulk specialty products that we either manufacture, blend, repackage, resell in their original form, or direct ship to our customers in smaller quantities, and services we provide for our customers. For our Health and Nutrition segment, this line includes products manufactured, processed or repackaged in our facility and/or with our equipment. Net sales include products and shipping charges, net of estimates for product returns and any related sales rebates. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring products. All revenue is recognized when we satisfy our performance obligations under the contract. Our criteria for recording revenue is consistent between our operating segments and types of products sold. We recognize revenue upon transfer of control of the promised products to the customer, with revenue recognized at the point in time the customer obtains control of the products. In arrangements where product is shipped directly from the vendor to our customer, we act as the principal in the transaction as we direct the other party to provide the product to our customer on our behalf, take inventory risk, establish the selling price, and are exposed to credit risk for the collection of the invoiced amount. If there were circumstances where we were to manufacture products for customers that were unique to their specifications and we would be prohibited by contract to use the product for any alternate use, we would recognize revenue over time if all criteria were met. We have made a policy election to treat shipping costs for FOB shipping point sales as fulfillment costs. As such, we recognize revenue for all shipping charges, if applicable, at the same time we recognize revenue on the products delivered. We estimate product returns based on historical return rates. Using probability assessments, we estimate sales rebates expected to be paid over the term of the contract. The majority of our contracts have a single performance obligation and are short term in nature. Sales taxes that are collected from customers and remitted to governmental authorities are accounted for on a net basis and therefore are excluded from net sales. We offer certain customers cash discounts and volume rebates as sales incentives. The discounts and volume rebates are recorded as a reduction in sales at the time revenue is recognized in an amount estimated based on historical experience and contractual obligations. We periodically review the assumptions underlying our estimates of discounts and volume rebates and adjust revenues accordingly.

Earnings per Share

Earnings per Share	3 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Earnings per Share	Earnings per Share Basic earnings per share (“EPS”) are computed by dividing net earnings by the weighted-average number of common shares outstanding. Diluted EPS includes the dilutive impact of incremental shares assumed to be issued as performance units and restricted stock. Basic and diluted EPS were calculated using the following: Three Months Ended June 30, July 1, Weighted-average common shares outstanding—basic 10,604,306 10,648,226 Dilutive impact of performance units and restricted stock 61,403 33,834 Weighted-average common shares outstanding—diluted 10,665,709 10,682,060 For each of the three months ended June 30, 2019 and July 1, 2018 , there were no shares excluded from the calculation of weighted-average common shares for diluted EPS.

Derivative Instruments

Derivative Instruments	3 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities Disclosure [Text Block]	Derivative Instruments We have in place an interest rate swap agreement to manage the risk associated with a portion of our variable-rate long-term debt. We do not utilize derivative instruments for speculative purposes. The interest rate swap involves the exchange of fixed-rate and variable-rate payments without the exchange of the underlying notional amount on which the interest payments are calculated. The swap agreement will terminate on December 23, 2020. The notional amount of the swap agreement is currently $30 million through August 31, 2019 and reduces to $20 million from September 1, 2019 through December 23, 2020. We have designated this swap as a cash flow hedge and have determined that it qualifies for hedge accounting treatment. For so long as the hedge is effective, changes in fair value of the cash flow hedge are recorded in other comprehensive income (net of tax) until income or loss from the cash flows of the hedged item is realized. For the three months ended June 30, 2019 , we recorded $0.2 million in other comprehensive income related to unrealized losses (net of tax) on the cash flow hedge described above. For the three months ended July 1, 2018 , we recorded a nominal amount in other comprehensive income related to unrealized gains (net of tax) on the cash flow hedge. Included in other long-term assets on our condensed consolidated balance sheet was $0.2 million as of June 30, 2019 and $0.4 million as of March 31, 2019 related to the cash flow hedge. Unrealized gains and losses will be reflected in net income when the related cash flows or hedged transactions occur and offset the related performance of the hedged item. By their nature, derivative instruments are subject to market risk. Derivative instruments are also subject to credit risk associated with counterparties to the derivative contracts. Credit risk associated with derivatives is measured based on the replacement cost should the counterparty with a contract in a gain position to us fail to perform under the terms of the contract. We do not anticipate nonperformance by the counterparty.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block]	Fair Value Measurements Our financial assets and liabilities are measured at fair value at the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). We classify the inputs used to measure fair value into the following hierarchy: Level 1: Quoted prices in active markets for identical assets or liabilities. Level 2: Quoted prices in active markets for similar assets or liabilities, or quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs other than quoted prices that are observable or can be corroborated by observable market data for the asset or liability. Level 3: Unobservable inputs for the asset or liability that are supported by little or no market activity. These fair values are determined using pricing models for which the assumptions utilize management’s estimates or market participant assumptions. Assets and Liabilities Measured at Fair Value on a Recurring Basis. The fair value hierarchy requires the use of observable market data when available. In instances where inputs used to measure fair value fall into different levels of the fair value hierarchy, the fair value measurement has been determined based on the lowest level input that is significant to the fair value measurement in its entirety. Our assessment of the significance of a particular item to the fair value measurement in its entirety requires judgment, including the consideration of inputs specific to the asset or liability. Our financial assets that are measured at fair value on a recurring basis are an interest rate swap and assets held in a deferred compensation retirement plan. Both of these assets are classified as other long-term assets on our balance sheet, with the portion of the deferred compensation retirement plan assets expected to be paid within twelve months reclassified to current assets. The fair value of the interest rate swap is determined by the respective counterparties based on interest rate changes. Interest rate swaps are valued based on observable interest rate yield curves for similar instruments. The deferred compensation plan assets relate to contributions made to a non-qualified compensation plan, established in fiscal 2017, on behalf of certain employees who are classified as “highly compensated employees” as determined by IRS guidelines. The assets are part of a rabbi trust and the funds are held in mutual funds. The fair value of the deferred compensation is based on the quoted market prices for the mutual funds at the end of the period. The following tables summarize the balances of assets measured at fair value on a recurring basis as of June 30, 2019 and March 31, 2019 . 0 June 30, 2019 (In thousands) Level 1 Level 2 Level 3 Interest rate swap — $ 190 — Deferred compensation plan assets $ 4,007 — — March 31, 2019 (In thousands) Level 1 Level 2 Level 3 Interest rate swap — $ 435 — Deferred compensation plan assets $ 2,637 — —

Assets Held for Sale

Assets Held for Sale	3 Months Ended
	Jun. 30, 2019
Property, Plant and Equipment Assets Held-for-sale Disclosure [Abstract]
Disclosure of Long Lived Assets Held-for-sale [Table Text Block]	Assets Held for Sale In fiscal 2019, management entered into a plan of action to dispose of an office building in St. Louis, Missouri currently utilized in the administration of our Industrial segment. The amount of office space in this facility is no longer needed due to current staffing levels, and management expects to relocate affected employees to leased space. The building is listed for sale at a price in excess of its current book value, and thus no impairment has been recognized. The $0.9 million net book value of this property is recorded as an asset held for sale within “Prepaid expenses and other current assets” on our balance sheet.

Inventories

Inventories	3 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories at June 30, 2019 and March 31, 2019 consisted of the following: June 30, March 31, (In thousands) Inventory (FIFO basis) $ 63,749 $ 65,526 LIFO reserve (5,056 ) (5,044 ) Net inventory $ 58,693 $ 60,482 The first in, first out (“FIFO”) value of inventories accounted for under the last in, first out (“LIFO”) method was $43.8 million at June 30, 2019 and $45.2 million at March 31, 2019 . The remainder of the inventory was valued and accounted for under the FIFO method. The LIFO reserve increased no minally during the three months ended June 30, 2019 and increased $0.3 million during the three months ended July 1, 2018 . The valuation of LIFO inventory for interim periods is based on our estimates of year-end inventory levels and costs.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets The carrying amount of goodwill was $58.4 million as of June 30, 2019 and March 31, 2019 , of which $44.9 million was related to our Health and Nutrition segment. A summary of our intangible assets as of June 30, 2019 and March 31, 2019 is as follows: June 30, 2019 March 31, 2019 (In thousands) Gross Amount Accumulated Amortization Net Gross Amount Accumulated Amortization Net Finite-life intangible assets Customer relationships $ 78,383 $ (18,032 ) $ 60,351 $ 78,383 $ (16,910 ) $ 61,473 Trademarks and trade names 6,045 (3,247 ) 2,798 6,045 (3,115 ) 2,930 Other finite-life intangible assets 3,648 (3,567 ) 81 3,648 (3,552 ) 96 Total finite-life intangible assets 88,076 (24,846 ) 63,230 88,076 (23,577 ) 64,499 Indefinite-life intangible assets 1,227 — 1,227 1,227 — 1,227 Total intangible assets $ 89,303 $ (24,846 ) $ 64,457 $ 89,303 $ (23,577 ) $ 65,726

Debt

Debt	3 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Debt	Debt Debt at June 30, 2019 and March 31, 2019 consisted of the following: June 30, March 31, (In thousands) Senior secured revolving loan $ 85,000 $ 85,000 Less: unamortized debt issuance costs (411 ) (435 ) Total debt, net of debt issuance costs 84,589 84,565 Less: current portion of long-term debt (9,907 ) (9,907 ) Total long-term debt $ 74,682 $ 74,658

Income Taxes

Income Taxes	3 Months Ended
	Jun. 30, 2019
Income Tax [Abstract]
Income Tax Disclosure [Text Block]	Income Taxes We are subject to U.S. federal income tax as well as income tax of multiple state jurisdictions. The tax years prior to our fiscal year ended April 3, 2016 are closed to examination by the Internal Revenue Service, and with few exceptions, state and local income tax jurisdictions. Our effective tax rate for the three months ended June 30, 2019 was 26.3% and was 27.3% for the three months ended July 1, 2018 . The effective tax rate is impacted by projected levels of annual taxable income, permanent items, and state taxes. As of June 30, 2019 and March 31, 2019 , our balance sheet included a long-term liability for uncertain tax positions of $0.1 million , which arose from tax positions taken by Stauber Performance Ingredients, Inc. (“Stauber”) on its tax returns for periods prior to our acquisition. Because the Stauber acquisition agreement provides us with indemnification by the prior owners for any tax liabilities relating to pre-acquisition tax returns, we have also recorded an offsetting, long-term receivable of $0.1 million as of June 30, 2019 and March 31, 2019 . As a result, any change in the unrecognized tax benefit will not impact our effective tax rate in future periods. We expect these uncertain income tax amounts to decrease through September 2019 as the applicable examination periods for the relevant taxing authorities expire.

Leases

Leases	3 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Lessee, Operating Leases [Text Block]	Leases Adoption of ASU 2016-02, Leases. On April 1, 2019, we adopted ASU 2016-02 using the modified retrospective method applied to existing leases in place as of April 1, 2019. Leases entered into after April 1, 2019 are presented under the provisions of ASU 2016-02, while prior periods are not adjusted and continue to be reported in accordance with previous accounting guidance. Leases commencing or renewing after the adoption date are evaluated based on the guidance in ASU 2016-02 and may result in more finance leases being recognized even for the renewal of previously classified operating leases. We elected to adopt the ‘package of practical expedients’, which permitted us not to reassess under the new standard our prior conclusions about lease identification, lease classification and initial direct costs. We elected the short-term lease recognition exemption for all leases that qualified. This means, for those leases that qualified, we did not recognize right-of-use assets or lease liabilities, and this included not recognizing right-of-use assets or lease liabilities for existing short-term leases of those assets in transition. We also elected the practical expedient to not separate lease and non-lease components for all leases other than leases of real estate, and this included not separating lease and non-lease components for all leases other than leases of real estate in transition. We adopted ASU 2016-02 using the modified retrospective method, recognizing the cumulative effect of application as an adjustment to the opening balance sheet. The standard had a material impact on our condensed consolidated balance sheet, but did not have a material impact on our condensed consolidated statement of income or cash flows. The most significant impact was the recognition of the ROU asset and lease liabilities for operating leases, both of which were approximately $10.4 million upon adoption. Lease Obligations. As of June 30, 2019 , we were obligated under operating lease agreements for certain manufacturing facilities, warehouse space, the land on which some of our facilities sit, vehicles and information technology equipment. Our leases have remaining lease terms of 1 year to 25 years , some of which may include options to extend the lease for up to 10 years . As of June 30, 2019 , our operating lease components with initial or remaining terms in excess of one year were classified on the condensed consolidated balance sheet within right of use assets, short-term lease liability and long-term lease liability. Expense for leases less than 12 months for the three months ended June 30, 2019 was no t material. Total lease expense for the three months ended June 30, 2019 was $0.7 million . Other information related to our operating leases was as follows: (In thousands) June 30, 2019 Supplemental Cash Flow Information Operating cash flows from leases $ 69 Lease Term and Discount Rate Weighted average remaining lease term (years) 9.15 Weighted average discount rate 4.1 % Maturities of lease liabilities as of June 30, 2019 were as follows: (In thousands) Operating Leases Remaining fiscal 2020 $ 1,978 Fiscal 2021 1,583 Fiscal 2022 1,306 Fiscal 2023 1,176 Fiscal 2024 1,114 Thereafter 4,959 Total $ 12,116 Less: Interest (2,203 ) Present value of lease liabilities $ 9,913 As we have not restated prior year information for our adoption of ASC Topic 842, the following represents our future minimum lease payments for operating leases under ASC Topic 840 on March 31, 2019 : (In thousands) Operating Leases Fiscal 2020 $ 2,198 Fiscal 2021 1,783 Fiscal 2022 1,407 Fiscal 2023 1,352 Fiscal 2024 1,183 Thereafter 5,473 Total $ 13,396

Share Based Compensation

Share Based Compensation	3 Months Ended
	Jun. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	Share-Based Compensation Performance-Based Restricted Stock Units . Our Board of Directors (the “Board”) approved a performance-based equity compensation arrangement for our executive officers during the first quarters of each of fiscal 2020 and fiscal 2019 . These performance-based arrangements provide for the grant of performance-based restricted stock units that represent a possible future issuance of restricted shares of our common stock based on a pre-tax income target for the applicable fiscal year. The actual number of restricted shares to be issued to each executive officer is determined when our final financial information becomes available after the applicable fiscal year and will be between zero shares and 69,632 shares in the aggregate for fiscal 2020 . The restricted shares issued, if any, will fully vest two years after the last day of the fiscal year on which the performance is based. We are recording the compensation expense for the outstanding performance share units and the converted restricted stock over the life of the awards. The following table represents the restricted stock activity for the three months ended June 30, 2019 : Shares Weighted- Average Grant Date Fair Value Unvested at beginning of period 32,883 $ 43.66 Granted 69,252 34.49 Vested (27,620 ) 46.01 Unvested at end of period 74,515 $ 34.27 We recorded compensation expense related to performance share units and restricted stock of $0.3 million for both the three months ended June 30, 2019 and July 1, 2018 . Substantially all of the compensation expense was recorded in selling, general and administrative expenses in the condensed consolidated statements of income. Restricted Stock Awards . As part of their retainer, each non-employee director receives an annual grant of restricted stock for their Board of Director services. The restricted stock awards are expensed over the requisite vesting period, which is one year from the date of issuance, based on the market value on the date of grant. As of June 30, 2019 , there were 8,352 shares of restricted stock with a grant date fair value of $35.90 outstanding under this program. Compensation expense for both the three months ended June 30, 2019 and July 1, 2018 related to restricted stock awards to the Board was $0.1 million .

Share Repurchase Program

Share Repurchase Program	3 Months Ended
	Jun. 30, 2019
Investment Company, Capital Share Transactions, Stock Repurchased [Abstract]
Share Repurchase Program	Share Repurchase Program Our board of directors has authorized the repurchase of up to 800,000 shares of our outstanding common stock for cash on the open market or in privately negotiated transactions subject to applicable securities laws and regulations. Upon purchase of the shares, we reduce our common stock for the par value of the shares with the excess applied against additional paid-in capital. During the three months ended June 30, 2019 , we repurchased 47,136 shares at an aggregate purchase price of $1.8 million . No shares were repurchased during the first three months of fiscal 2019. As of June 30, 2019 , 457,244 shares remained available to be repurchased under the share repurchase program.

Litigation, Commitments and Con

Litigation, Commitments and Contingencies	3 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Litigation, Commitments and Contingencies	Litigation, Commitments and Contingencies Litigation. There are no material pending legal proceedings, other than ordinary routine litigation incidental to the business, to which we or any of our subsidiaries are a party or of which any of our property is the subject. Legal fees associated with such matters are expensed as incurred. Environmental Remediation. During fiscal 2018, we recorded a liability of $0.6 million related to estimated remediation expenses associated with existing contamination at our Minneapolis facility. The liability was $0.3 million as of June 30, 2019 and $0.4 million as of March 31, 2019 . Given the many uncertainties involved in assessing environmental claims, our reserves may prove to be insufficient. While it is possible that additional expenses related to remediation will be incurred in future periods if currently unknown issues arise, we are unable to estimate the extent of any further financial impact at this time.

Segment Information

Segment Information	3 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Segment Information	Segment Information We have three reportable segments: Industrial, Water Treatment, and Health and Nutrition. The accounting policies of the segments are the same as those described in the summary of significant accounting policies in our fiscal 2019 Annual Report on Form 10-K. We evaluate performance based on profit or loss from operations before income taxes not including nonrecurring gains and losses. Reportable segments are defined primarily by product and type of customer. Segments are responsible for the sales, marketing and development of their products and services. Other than our Health and Nutrition segment, the segments do not have separate accounting, administration, customer service or purchasing functions. We allocate certain corporate expenses to our operating segments. There are no intersegment sales and no operating segments have been aggregated. No single customer’s revenues amounted to 10% or more of our total revenue. Sales are primarily within the United States and all assets are located within the United States. (In thousands) Industrial Water Treatment Health and Nutrition Total Three months ended June 30, 2019: Sales $ 75,325 $ 43,252 $ 28,759 $ 147,336 Gross profit 10,915 12,091 5,791 28,797 Selling, general, and administrative expenses 6,096 4,988 3,752 14,836 Operating income 4,819 7,103 2,039 13,961 Three months ended July 1, 2018: Sales $ 74,018 $ 40,869 $ 34,913 $ 149,800 Gross profit 10,443 11,437 6,577 28,457 Selling, general, and administrative expenses 5,487 5,101 4,391 14,979 Operating income 4,956 6,336 2,186 13,478 No significant changes to identifiable assets by segment occurred during the three months ended June 30, 2019 .

Revenue (Tables)

Revenue (Tables)	3 Months Ended
	Jun. 30, 2019
Disaggregation of Revenue [Abstract]
Disaggregation of Revenue [Table Text Block]	The following tables disaggregate external customer net sales by major revenue stream for the three months ended June 30, 2019 and July 1, 2018 : Three months ended June 30, 2019 (In thousands) Industrial Water Health and Total Bulk / Distributed specialty products (1) $ 15,090 $ 4,708 $ 24,603 $ 44,401 Manufactured, blended or repackaged products (2) 59,394 38,150 4,144 101,688 Other 841 394 12 1,247 Total external customer sales $ 75,325 $ 43,252 $ 28,759 $ 147,336 Three months ended July 1, 2018 (In thousands) Industrial Water Health and Total Bulk / Distributed specialty products (1) $ 14,936 $ 5,822 $ 30,677 $ 51,435 Manufactured, blended or repackaged products (2) 58,032 34,659 4,185 96,876 Other 1,050 388 51 1,489 Total external customer sales $ 74,018 $ 40,869 $ 34,913 $ 149,800 (1) For our Industrial and Water Treatment segments, this line includes our bulk products that we do not modify in any way, but receive, store, and ship from our facilities, or direct ship to our customers in large quantities. For our Health and Nutrition segment, this line includes our non-manufactured distributed specialty products, which may be sold out of one of our facilities or direct shipped to our customers. (2) For our Industrial and Water Treatment segments, this line includes our non-bulk specialty products that we either manufacture, blend, repackage, resell in their original form, or direct ship to our customers in smaller quantities, and services we provide for our customers. For our Health and Nutrition segment, this line includes products manufactured, processed or repackaged in our facility and/or with our equipment.

Earnings per Share (Tables)

Earnings per Share (Tables)	3 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Summary of basic and diluted EPS	Basic and diluted EPS were calculated using the following: Three Months Ended June 30, July 1, Weighted-average common shares outstanding—basic 10,604,306 10,648,226 Dilutive impact of performance units and restricted stock 61,403 33,834 Weighted-average common shares outstanding—diluted 10,665,709 10,682,060

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]	The following tables summarize the balances of assets measured at fair value on a recurring basis as of June 30, 2019 and March 31, 2019 . 0 June 30, 2019 (In thousands) Level 1 Level 2 Level 3 Interest rate swap — $ 190 — Deferred compensation plan assets $ 4,007 — — March 31, 2019 (In thousands) Level 1 Level 2 Level 3 Interest rate swap — $ 435 — Deferred compensation plan assets $ 2,637 — —

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Summary of Inventories	Inventories at June 30, 2019 and March 31, 2019 consisted of the following: June 30, March 31, (In thousands) Inventory (FIFO basis) $ 63,749 $ 65,526 LIFO reserve (5,056 ) (5,044 ) Net inventory $ 58,693 $ 60,482

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of intangible assets and goodwill	A summary of our intangible assets as of June 30, 2019 and March 31, 2019 is as follows: June 30, 2019 March 31, 2019 (In thousands) Gross Amount Accumulated Amortization Net Gross Amount Accumulated Amortization Net Finite-life intangible assets Customer relationships $ 78,383 $ (18,032 ) $ 60,351 $ 78,383 $ (16,910 ) $ 61,473 Trademarks and trade names 6,045 (3,247 ) 2,798 6,045 (3,115 ) 2,930 Other finite-life intangible assets 3,648 (3,567 ) 81 3,648 (3,552 ) 96 Total finite-life intangible assets 88,076 (24,846 ) 63,230 88,076 (23,577 ) 64,499 Indefinite-life intangible assets 1,227 — 1,227 1,227 — 1,227 Total intangible assets $ 89,303 $ (24,846 ) $ 64,457 $ 89,303 $ (23,577 ) $ 65,726

Debt (Tables)

Debt (Tables)	3 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	Debt at June 30, 2019 and March 31, 2019 consisted of the following: June 30, March 31, (In thousands) Senior secured revolving loan $ 85,000 $ 85,000 Less: unamortized debt issuance costs (411 ) (435 ) Total debt, net of debt issuance costs 84,589 84,565 Less: current portion of long-term debt (9,907 ) (9,907 ) Total long-term debt $ 74,682 $ 74,658

Leases (Tables)

Leases (Tables)	3 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Operating Lease, Lease Income [Table Text Block]	As of June 30, 2019 , our operating lease components with initial or remaining terms in excess of one year were classified on the condensed consolidated balance sheet within right of use assets, short-term lease liability and long-term lease liability.
Other information related to our operating leases [Table Text Block]	Other information related to our operating leases was as follows: (In thousands) June 30, 2019 Supplemental Cash Flow Information Operating cash flows from leases $ 69 Lease Term and Discount Rate Weighted average remaining lease term (years) 9.15 Weighted average discount rate 4.1 %
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Maturities of lease liabilities as of June 30, 2019 were as follows: (In thousands) Operating Leases Remaining fiscal 2020 $ 1,978 Fiscal 2021 1,583 Fiscal 2022 1,306 Fiscal 2023 1,176 Fiscal 2024 1,114 Thereafter 4,959 Total $ 12,116 Less: Interest (2,203 ) Present value of lease liabilities $ 9,913
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	As we have not restated prior year information for our adoption of ASC Topic 842, the following represents our future minimum lease payments for operating leases under ASC Topic 840 on March 31, 2019 : (In thousands) Operating Leases Fiscal 2020 $ 2,198 Fiscal 2021 1,783 Fiscal 2022 1,407 Fiscal 2023 1,352 Fiscal 2024 1,183 Thereafter 5,473 Total $ 13,396

Share Based Compensation (Table

Share Based Compensation (Tables)	3 Months Ended
	Jun. 30, 2019
Performance-Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of performance-based restricted stock units	The following table represents the restricted stock activity for the three months ended June 30, 2019 : Shares Weighted- Average Grant Date Fair Value Unvested at beginning of period 32,883 $ 43.66 Granted 69,252 34.49 Vested (27,620 ) 46.01 Unvested at end of period 74,515 $ 34.27

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Summary of Segment Information	(In thousands) Industrial Water Treatment Health and Nutrition Total Three months ended June 30, 2019: Sales $ 75,325 $ 43,252 $ 28,759 $ 147,336 Gross profit 10,915 12,091 5,791 28,797 Selling, general, and administrative expenses 6,096 4,988 3,752 14,836 Operating income 4,819 7,103 2,039 13,961 Three months ended July 1, 2018: Sales $ 74,018 $ 40,869 $ 34,913 $ 149,800 Gross profit 10,443 11,437 6,577 28,457 Selling, general, and administrative expenses 5,487 5,101 4,391 14,979 Operating income 4,956 6,336 2,186 13,478

Revenue (Details)

Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jul. 01, 2018
Disaggregation of Revenue [Line Items]
Revenue	$ 147,336	$ 149,800
Bulk / Distributed specialty products [Member]
Disaggregation of Revenue [Line Items]
Revenue	44,401	51,435
Manufactured, blended or repackaged products [Member]
Disaggregation of Revenue [Line Items]
Revenue	101,688	96,876
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,247	1,489
Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenue	75,325	74,018
Industrial [Member] | Bulk / Distributed specialty products [Member]
Disaggregation of Revenue [Line Items]
Revenue	15,090	14,936
Industrial [Member] | Manufactured, blended or repackaged products [Member]
Disaggregation of Revenue [Line Items]
Revenue	59,394	58,032
Industrial [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	841	1,050
Water Treatment [Member]
Disaggregation of Revenue [Line Items]
Revenue	43,252	40,869
Water Treatment [Member] | Bulk / Distributed specialty products [Member]
Disaggregation of Revenue [Line Items]
Revenue	4,708	5,822
Water Treatment [Member] | Manufactured, blended or repackaged products [Member]
Disaggregation of Revenue [Line Items]
Revenue	38,150	34,659
Water Treatment [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	394	388
Health and Nutrition [Member]
Disaggregation of Revenue [Line Items]
Revenue	28,759	34,913
Health and Nutrition [Member] | Bulk / Distributed specialty products [Member]
Disaggregation of Revenue [Line Items]
Revenue	24,603	30,677
Health and Nutrition [Member] | Manufactured, blended or repackaged products [Member]
Disaggregation of Revenue [Line Items]
Revenue	4,144	4,185
Health and Nutrition [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 12	$ 51

Earnings per Share (Details)

Earnings per Share (Details) - shares	3 Months Ended
	Jun. 30, 2019	Jul. 01, 2018
Summary of basic and diluted EPS
Weighted-average common shares outstanding—basic	10,604,306	10,648,226
Dilutive impact of performance units and restricted stock	61,403	33,834
Weighted-average common shares outstanding—diluted	10,665,709	10,682,060

Earnings per Share (Details Tex

Earnings per Share (Details Textual) - shares	3 Months Ended
	Jun. 30, 2019	Jul. 01, 2018
Earnings Per Share [Abstract]
Shares or stock options excluded from the calculation of diluted EPS	0	0

Derivative Instruments (Details

Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Mar. 31, 2019
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ 179	$ (27)
Interest Rate Swap [Member]
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	179	$ (27)
Cash Flow Hedge Derivative Instrument Assets at Fair Value	190		$ 435
Interest Rate Swap [Member] | Debt Instrument, Redemption, Period Two [Member]
Derivative [Line Items]
Derivative, Notional Amount	30,000
Interest Rate Swap [Member] | Debt Instrument, Redemption, Period Three [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 20,000

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation plan assets	$ 4,007	$ 2,637
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation plan assets	0	0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation plan assets	0	0
Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap	190	435
Interest Rate Swap [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap	0	0
Interest Rate Swap [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap	190	435
Interest Rate Swap [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap	$ 0	$ 0

Assets Held for Sale (Details)

Assets Held for Sale (Details) $ in Millions	Jun. 30, 2019USD ($)
Property, Plant and Equipment Assets Held-for-sale Disclosure [Abstract]
Assets Held-for-sale	$ 0.9

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019
Summary of Inventories
Inventory (FIFO basis)	$ 63,749	$ 65,526
LIFO reserve	(5,056)	(5,044)
Net inventory	$ 58,693	$ 60,482

Inventories (Details Textual)

Inventories (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Mar. 31, 2019
Inventory Disclosure [Abstract]
Finished goods (LIFO basis)	$ 43.8		$ 45.2
Increase (decrease) in LIFO reserve	$ 0	$ 0.3

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019
Goodwill [Line Items]
Goodwill	$ 58,440	$ 58,440
Health and Nutrition [Member]
Goodwill [Line Items]
Goodwill	$ 44,900

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019
Summary of Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, Gross Carrying Amount	$ 88,076	$ 88,076
Finite-life intangible assets, Accumulated Amortization	(24,846)	(23,577)
Total finite-life intangible assets, Net	63,230	64,499
Indefinite-life intangible assets gross	1,227	1,227
Indefinite-life intangible assets, Accumulated Amortization	0	0
Indefinite-life intangible assets	1,227	1,227
Total Intangible Assets, Gross	89,303	89,303
Total intangible assets, net	64,457	65,726
Customer Relationships [Member]
Summary of Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, Gross Carrying Amount	78,383	78,383
Finite-life intangible assets, Accumulated Amortization	(18,032)	(16,910)
Total finite-life intangible assets, Net	60,351	61,473
Trademarks [Member]
Summary of Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, Gross Carrying Amount	6,045	6,045
Finite-life intangible assets, Accumulated Amortization	(3,247)	(3,115)
Total finite-life intangible assets, Net	2,798	2,930
Other finite-life intangible assets [Member]
Summary of Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, Gross Carrying Amount	3,648	3,648
Finite-life intangible assets, Accumulated Amortization	(3,567)	(3,552)
Total finite-life intangible assets, Net	$ 81	$ 96

Debt (Details)

Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019
Debt Disclosure [Abstract]
Senior secured revolving loan	$ 85,000	$ 85,000
Less: unamortized debt issuance costs	(411)	(435)
Total debt, net of debt issuance costs	84,589	84,565
Less: current portion of long-term debt	(9,907)	(9,907)
Total long-term debt	$ 74,682	$ 74,658

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Mar. 31, 2019
Income Tax [Abstract]
Effective Income Tax Rate Reconciliation, Percent	26.30%	27.30%
Unrecognized Tax Benefits	$ 100		$ 100
Business Combination, Indemnification Assets, Amount as of Acquisition Date	$ 100		$ 100

Leases Balance Sheet (Details)

Leases Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Apr. 01, 2019	Mar. 31, 2019
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 9,941	$ 10,400	$ 0
Operating Lease, Liability, Current	1,707		0
Operating Lease, Liability, Noncurrent	8,206		$ 0
Operating Lease, Liability	$ 9,913	$ 10,400

Leases (Details)

Leases (Details)	3 Months Ended
	Jun. 30, 2019USD ($)
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Option to Extend	10 years
Short-term Lease, Expense	$ 0
Operating Lease, Expense	$ 700,000
Operating Lease, Weighted Average Remaining Lease Term	9 years 1 month 25 days
Operating Lease, Weighted Average Discount Rate, Percent	4.10%
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Renewal Term	1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Renewal Term	25 years

Leases maturities (Details)

Leases maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Apr. 01, 2019	Mar. 31, 2019
Leases [Abstract]
Remaining fiscal 2020	$ 1,978
Fiscal 2021	1,583
Fiscal 2022	1,306
Fiscal 2023	1,176
Fiscal 2024	1,114
Thereafter	4,959
Total	12,116
Less: Interest	(2,203)
Present value of lease liabilities	$ 9,913	$ 10,400
Fiscal 2020			$ 2,198
Fiscal 2021			1,783
Fiscal 2022			1,407
Fiscal 2023			1,352
Fiscal 2024			1,183
Thereafter			5,473
Total			$ 13,396

Share Based Compensation (Detai

Share Based Compensation (Details) - Performance-Based Restricted Stock [Member]	3 Months Ended
	Jun. 30, 2019$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Beginning Balance, Weighted average grant date fair value (usd per share) | $ / shares	$ 43.66
Granted, Weighted average grant date fair value (usd per share) | $ / shares	34.49
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value | $ / shares	46.01
Ending Balance, Weighted average grant date fair value (usd per share) | $ / shares	$ 34.27
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested at beginning of period (Shares) | shares	32,883
Granted (Shares) | shares	69,252
Vested (Shares) | shares	(27,620)
Unvested at end of period (Shares) | shares	74,515

Share Based Compensation (Det_2

Share Based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Jun. 30, 2019	Jul. 01, 2018
Performance-Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of restricted stock to be issued minimum (shares)	0
Range of restricted stock to be issued maximum (shares)	69,632
Vesting period	2 years
Compensation expense	$ 0.3	$ 0.3
Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
Compensation expense	$ 0.1	$ 0.1
Restricted stock awards outstanding (shares)	8,352
Restricted stock awards, weighted average exercise price (usd per share)	$ 35.90

Share Repurchase Program (Detai

Share Repurchase Program (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2019	Jul. 01, 2018
Investment Company, Capital Share Transactions, Stock Repurchased [Abstract]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	800,000
Stock Repurchased During Period, Shares	47,136	0
Stock Repurchased During Period, Value	$ 1.8
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	457,244

Litigation, Commitments and C_2

Litigation, Commitments and Contingencies (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 01, 2018	Jun. 30, 2019	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Environmental Remediation Expense	$ 0.6
Accrual for Environmental Loss Contingencies		$ 0.3	$ 0.4

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jul. 01, 2018
Segment Reporting Information [Line Items]
Sales	$ 147,336	$ 149,800
Gross profit	28,797	28,457
Selling, general, and administrative expenses	14,836	14,979
Operating income	13,961	13,478
Industrial [Member]
Segment Reporting Information [Line Items]
Sales	75,325	74,018
Gross profit	10,915	10,443
Selling, general, and administrative expenses	6,096	5,487
Operating income	4,819	4,956
Water Treatment [Member]
Segment Reporting Information [Line Items]
Sales	43,252	40,869
Gross profit	12,091	11,437
Selling, general, and administrative expenses	4,988	5,101
Operating income	7,103	6,336
Health and Nutrition [Member]
Segment Reporting Information [Line Items]
Sales	28,759	34,913
Gross profit	5,791	6,577
Selling, general, and administrative expenses	3,752	4,391
Operating income	$ 2,039	$ 2,186

Segment Information (Details Te

Segment Information (Details Textual)	3 Months Ended
	Jun. 30, 2019Segment
Segment Reporting Information [Line Items]
Number of reportable segments (segments)	3
Intersegment sales	0
Number of operating segments aggregated (segments)	0
Number of customer representing 10 percent or more of revenue (customers)	0
Quarterly Financial Information, Segment Reporting, Segment Assets, Material Change	0