Hawkins (HWKN) 10-K 29 May 14 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 30, 2014	23-May-14	Sep. 29, 2013
Document and Entity Information [Abstract]	'	'	'
Entity Registrant Name	'HAWKINS INC	'	'
Entity Central Index Key	'0000046250	'	'
Document Type	'10-K	'	'
Document Period End Date	30-Mar-14	'	'
Amendment Flag	'false	'	'
Document Fiscal Year Focus	'2014	'	'
Document Fiscal Period Focus	'FY	'	'
Current Fiscal Year End Date	'--03-30	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Filer Category	'Accelerated Filer	'	'
Entity Public Float	'	'	$358.30
Entity Common Stock, Shares Outstanding	'	10,612,640	'

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 30, 2014	Mar. 31, 2013
Statement of Financial Position [Abstract]	'	'
Interest Income (Expense), Net	($29)	$84
CURRENT ASSETS:	'	'
Cash and cash equivalents	33,486	28,715
Investments available-for-sale	13,843	15,625
Trade receivables - less allowance for doubtful accounts: $477 for 2014 and $469 for 2013	37,946	35,920
Inventories	26,192	28,208
Prepaid expenses and other current assets	3,160	2,613
Total current assets	114,627	111,081
PROPERTY, PLANT, AND EQUIPMENT:	'	'
Land	8,038	8,038
Buildings and improvements	68,801	68,268
Machinery and equipment	53,089	50,389
Transportation equipment	17,764	16,156
Office furniture and equipment including computer systems	11,183	10,204
Property, plant and equipment, gross	158,875	153,055
Less accumulated depreciation	68,406	62,081
Net property, plant, and equipment	90,469	90,974
OTHER ASSETS:	'	'
Goodwill	7,392	6,495
Intangible assets — less accumulated amortization: $3,069 for 2014 and $2,398 for 2013	8,509	7,678
Long-term investments	15,852	5,597
Other	344	323
Total other assets	32,097	20,093
Total assets	237,193	222,148
CURRENT LIABILITIES:	'	'
Accounts payable — trade	18,306	18,516
Dividends payable	3,823	3,592
Accrued payroll and employee benefits	5,555	5,391
Deferred income taxes	2,900	2,554
Income tax payable	1,444	1,446
Other current liabilities	3,801	3,626
Total current liabilities	35,829	35,125
PENSION WITHDRAWAL LIABILITY	6,887	7,136
OTHER LONG-TERM LIABILITIES	1,878	1,653
DEFERRED INCOME TAXES	10,186	8,062
Total liabilities	54,780	51,976
COMMITMENTS AND CONTINGENCIES	0	0
SHAREHOLDERS’ EQUITY:	'	'
Common stock; authorized: 30,000,000 shares of $0.05 par value; 10,562,400 and 10,495,427 shares issued and outstanding for 2014 and 2013, respectively	528	525
Additional paid-in capital	50,502	48,779
Retained earnings	131,427	120,974
Accumulated other comprehensive loss	-44	-106
Total shareholders’ equity	182,413	170,172
Total liabilities and shareholders’ equity	$237,193	$222,148

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 30, 2014	Mar. 31, 2013
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Allowance for doubtful accounts receivable	$477	$469
Intangible assets, accumulated amortization	$3,069	$2,398
Common stock, shares authorized (shares)	30,000,000	30,000,000
Common stock, par value (usd per share)	$0.05	$0.05
Common stock, shares issued (shares)	10,562,400	10,495,427
Common stock, shares outstanding (shares)	10,562,400	10,495,427

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Income (Unaudited) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Income Statement [Abstract]	'	'	'
Sales	$348,263	$350,387	$343,834
Cost of sales	-286,663	-286,241	-277,966
Pension withdrawal	0	-7,210	0
Gross profit	61,600	56,936	65,868
Selling, general and administrative expenses	-33,510	-31,606	-30,759
Operating income	28,090	25,330	35,109
Interest Income (Expense), Net	-29	84	145
Income from continuing operations before income taxes	28,061	25,414	35,254
Income tax provision	-9,967	-8,306	-13,626
Income from continuing operations	18,094	17,108	21,628
Income from discontinued operations, net of tax	0	18	1,057
Net income	$18,094	$17,126	$22,685
Weighted average number of shares outstanding-basic (shares)	10,544,467	10,464,820	10,339,391
Weighted average number of shares outstanding-diluted (shares)	10,599,755	10,541,142	10,408,573
Basic earnings per share:	'	'	'
Earnings per share from continuing operations (usd per share)	$1.72	$1.64	$2.09
Earnings per share from discontinued operations (usd per share)	$0	$0	$0.10
Basic earnings per share (usd per share)	$1.72	$1.64	$2.19
Diluted earnings per share	'	'	'
Earnings per share from continuing operations (usd per share)	$1.71	$1.62	$2.08
Earnings per share from discontinued operations (usd per share)	$0	$0	$0.10
Diluted earnings per share (usd per share)	$1.71	$1.62	$2.18
Cash dividends declared per common share (usd per share)	$0.72	$0.68	$0.64

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Statement of Other Comprehensive Income [Abstract]	'	'	'
Net income	$18,094	$17,126	$22,685
Other comprehensive income (loss), net of tax:	'	'	'
Unrealized gain (loss) on available-for-sale investments	-47	12	-4
Unrealized gain on post-retirement liability	109	5	26
Total other comprehensive income	62	17	22
Other comprehensive income, net of tax	$18,156	$17,143	$22,707

Consolidated_Statements_of_Sha

Consolidated Statements of Shareholders' Equity and Comprehensive Income (Loss) Statement (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
In Thousands, except Share data, unless otherwise specified
Stockholders' equity, beginning balance at Apr. 03, 2011	$136,443	$515	$41,060	$95,013	($145)
Shares outstanding, beginning balance at Apr. 03, 2011	'	10,307,177	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'
Cash dividends declared	-6,659	'	'	-6,659	'
Share-based compensation expense	1,350	'	1,350	'	'
Tax benefit on share-based compensation plans	698	'	698	'	'
Vesting of restricted stock (shares)	'	18,663	'	'	'
Vesting of restricted stock	0	1	-1	'	'
Shares surrendered for payroll taxes (shares)	'	-3,980	'	'	'
Shares surrendered for payroll taxes	-150	0	-150	'	'
Stock Options Exercised (shares)	'	85,332	'	'	'
Stock Options Exercised	1,466	5	1,461	'	'
ESPP Shares Issued (shares)	'	23,682	'	'	'
ESPP Shares Issued	752	1	751	'	'
Total other comprehensive income	22	'	'	'	22
Net income	22,685	'	'	22,685	'
Stockholders' equity, ending balance at Apr. 01, 2012	156,607	522	45,169	111,039	-123
Shares outstanding, ending balance at Apr. 01, 2012	'	10,430,874	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'
Cash dividends declared	-7,191	'	'	-7,191	'
Share-based compensation expense	1,630	'	1,630	'	'
Tax benefit on share-based compensation plans	510	'	510	'	'
Vesting of restricted stock (shares)	'	6,120	'	'	'
Vesting of restricted stock	-1	0	-1	'	'
Stock Options Exercised (shares)	'	27,999	'	'	'
Stock Options Exercised	515	1	514	'	'
ESPP Shares Issued (shares)	'	30,434	'	'	'
ESPP Shares Issued	959	2	957	'	'
Total other comprehensive income	17	'	'	'	17
Net income	17,126	'	'	17,126	'
Stockholders' equity, ending balance at Mar. 31, 2013	170,172	525	48,779	120,974	-106
Shares outstanding, ending balance at Mar. 31, 2013	'	10,495,427	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'
Cash dividends declared	-7,641	'	'	'	'
Share-based compensation expense	1,322	'	1,322	'	'
Tax benefit on share-based compensation plans	-214	'	-214	'	'
Vesting of restricted stock (shares)	'	41,906	'	'	'
Vesting of restricted stock	0	2	-2	'	'
Shares surrendered for payroll taxes (shares)	'	-12,480	'	'	'
Shares surrendered for payroll taxes	-485	-1	-484	'	'
Stock Options Exercised (shares)	9,333	9,333	'	'	'
Stock Options Exercised	186	1	185	'	'
ESPP Shares Issued (shares)	'	28,214	'	'	'
ESPP Shares Issued	917	1	916	'	'
Total other comprehensive income	62	'	'	'	62
Net income	18,094	'	'	18,094	'
Stockholders' equity, ending balance at Mar. 30, 2014	$182,413	$528	$50,502	$131,427	($44)
Shares outstanding, ending balance at Mar. 30, 2014	'	10,562,400	'	'	'

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'	'
Net income	$18,094	$17,126	$22,685
Reconciliation to cash flows:	'	'	'
Depreciation and amortization	12,605	10,248	8,458
Deferred income taxes	2,150	-2,985	3,082
Pension withdrawal	0	7,210	0
Share-based compensation expense	1,322	1,621	1,350
Loss from property disposals	111	153	2
Changes in operating accounts (using) providing cash, net of effects of acquisition:	'	'	'
Trade receivables	-1,698	2,149	-2,407
Inventories	2,122	-573	1,319
Accounts payable	335	-1,185	-1,846
Accrued liabilities	141	-1,319	343
Income taxes	-2	3,893	-251
Other	-568	-864	947
Net cash provided by operating activities	34,612	35,474	33,682
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'	'
Additions to property, plant, and equipment	-12,261	-26,660	-20,057
Purchases of investments	-25,161	-18,755	-14,165
Sale and maturities of investments	16,612	14,900	15,270
Proceeds from property disposals	115	233	255
Acquisitions	-2,416	-100	-1,709
Net cash used in investing activities	-23,111	-30,382	-20,406
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'	'
Cash dividends paid	-7,410	-6,936	-6,417
Proceeds from Issuance of Common Stock	917	968	752
Stock options exercised	186	515	1,466
Excess tax benefit from share-based compensation	62	510	699
Shares surrendered for payroll taxes	-485	0	-150
Net cash used in financing activities	-6,730	-4,943	-3,650
NET INCREASE IN CASH AND CASH EQUIVALENTS	4,771	149	9,626
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	28,715	28,566	18,940
CASH AND CASH EQUIVALENTS, END OF PERIOD	33,486	28,715	28,566
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION-	'	'	'
Cash paid during the year for income taxes	7,757	6,900	10,788
Capital expenditures in accounts payable	$699	$1,401	$279

Nature_of_Business_and_Signifi

Nature of Business and Significant Accounting Policies	12 Months Ended
	Mar. 30, 2014
Accounting Policies [Abstract]	'
Nature of Business and Significant Accounting Policies	'
	Nature of Business and Significant Accounting Policies
	Nature of Business - We have two reportable segments: Industrial and Water Treatment. The Industrial Group operates our Industrial segment and specializes in providing industrial chemicals, products and services to industries such as agriculture, energy, electronics, food, chemical processing, pharmaceutical, medical device and plating. The group also manufactures and sells certain food-grade products, including liquid phosphates, lactates and other blended products. The Water Treatment Group operates our Water Treatment segment and specializes in providing chemicals, equipment and solutions for potable water, municipal and industrial wastewater, industrial process water and non-residential swimming pool water. The group has the resources and flexibility to treat systems ranging in size from a single small well to a multi-million-gallon-per-day facility.
	Fiscal Year - Our fiscal year is a 52/53-week year ending on the Sunday closest to March 31. Our fiscal years ended March 30, 2014 (“fiscal 2014”), March 31, 2013 (“fiscal 2013”) and April 1, 2012 (“fiscal 2012”) were, and the fiscal year ending on March 29, 2015 (“fiscal 2015”) will be, 52 weeks.
	Principles of Consolidation - The consolidated financial statements include the accounts of Hawkins, Inc. and its wholly-owned subsidiaries. All intercompany transactions and accounts have been eliminated.
	Estimates - The preparation of financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reported period. Actual results could differ from those estimates.
	Revenue Recognition - We recognize revenue when there is evidence that the customer has agreed to purchase the product, the price and terms of the sale are fixed, the product has shipped and title has passed to our customer, performance has occurred, and collection of the receivable is reasonably assured.
	Shipping and Handling - All shipping and handling amounts billed to customers are included in revenues. Costs incurred related to the shipping and the handling of products are included in cost of sales.
	Fair Value Measurements - The financial assets and liabilities that are re-measured and reported at fair value for each reporting period include marketable securities and contingent consideration payable related to the ACS Acquisition. There are no fair value measurements with respect to nonfinancial assets or liabilities that are recognized or disclosed at fair value in our consolidated financial statements on a recurring basis.
	Assets and liabilities measured at fair value are classified using the following hierarchy, which is based upon the transparency of inputs to the valuation as of the measurement date:
	Level 1:  Valuation is based on observable inputs such as quoted market prices (unadjusted) for identical assets or liabilities in active markets.
	Level 2:  Valuation is based on inputs such as quoted market prices for similar assets or liabilities in active markets or other inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.
	Level 3:  Valuation is based upon other unobservable inputs that are significant to the fair value measurement.
	In making fair value measurements, observable market data must be used when available. When inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement.
	Cash Equivalents - Cash equivalents include all liquid debt instruments (primarily cash funds and money market accounts) purchased with an original maturity of three months or less. The balances maintained at financial institutions may, at times, exceed federally insured limits.
	Investments - Available-for-sale securities consist of certificates of deposit (“CD’s”) and municipal bonds and are valued at current market value, with the resulting unrealized gains and losses excluded from earnings and reported, net of tax, as a separate component of shareholders’ equity until realized. Any impairment loss to reduce an investment’s carrying amount to its fair market value is recognized in income when a decline in the fair market value of an individual security below its cost or carrying value is determined to be other than temporary.
	Trade Receivables and Concentrations of Credit Risk - Financial instruments, which potentially subject us to a concentration of credit risk, principally consist of trade receivables. We sell our principal products to a large number of customers in many different industries. There are no concentrations of credit risk with a single customer from a particular service or geographic area that would significantly impact us in the near term. To reduce credit risk, we routinely assess the financial strength of our customers. We record an allowance for doubtful accounts to reduce our receivables to an amount we estimate is collectible from our customers. Estimates used in determining the allowance for doubtful accounts are based on historical collection experience, current trends, aging of accounts receivable and periodic evaluations of our customers’ financial condition. We invest our excess cash balances at times in CD’s, municipal bonds and a money market account at two separate financial institutions where the cash balances may exceed federally insured limits. The institutions are two of the largest commercial banking institutions in the country and both have maintained a AA credit rating.
	Inventories - Inventories, consisting primarily of finished goods, are primarily valued at the lower of cost or net realizable value, with cost for the vast majority of our inventory determined using the last-in, first-out (“LIFO”) method. The amount of inventory valued using the first-in, first-out (“FIFO”) method represents approximately 9% of the total FIFO inventory balance at March 30, 2014.
	Property, Plant and Equipment - Property is stated at cost and depreciated or amortized over the lives of the assets, using the straight-line method. Estimated lives are: 10 to 40 years for buildings and improvements; 3 to 20 years for machinery and equipment; 3 to 10 years for transportation equipment; and 3 to 10 years for office furniture and equipment including computer systems. Leasehold improvements are depreciated over the lesser of their estimated useful lives or the remaining lease term.
	Significant improvements that add to productive capacity or extend the lives of properties are capitalized. Costs for repairs and maintenance are charged to expense as incurred. When property is retired or otherwise disposed of, the cost and related accumulated depreciation or amortization are removed from the accounts and any related gains or losses are included in income.
	We review the recoverability of long-lived assets to be held and used, such as property, plant and equipment, when events or changes in circumstances occur that indicate the carrying value of the asset group may not be recoverable, such as prolonged industry downturn or significant reductions in projected future cash flows. The assessment of possible impairment is based on our ability to recover the carrying value of the asset group from the expected future pre-tax cash flows (undiscounted) of the related operations. If these cash flows are less than the carrying value of such asset group, an impairment loss would be measured by the amount the carrying value exceeds the fair value of the long-lived asset group. The measurement of impairment requires us to estimate future cash flows and the fair value of long-lived assets. No material long-lived assets were determined to be impaired during fiscal years 2014, 2013 or 2012.
	Goodwill and Identifiable Intangible Assets - Goodwill represents the excess of the cost of acquired businesses over the fair value of identifiable tangible net assets and identifiable intangible assets purchased. Goodwill is tested at least annually for impairment, and is tested for impairment more frequently if events or changes in circumstances indicate that the asset might be impaired. As of January 1, 2014, the company performed an analysis of qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform a two-step goodwill impairment test. Based on management’s analysis of qualitative factors, we determined that it was not necessary to perform a two-step goodwill impairment test for either reporting unit.
	Our primary identifiable intangible assets include customer lists, trade secrets, non-compete agreements, trademarks, and trade names acquired in previous business acquisitions. Identifiable intangibles with finite lives are amortized and those identifiable intangibles with indefinite lives are not amortized. The values assigned to the intangible assets with finite lives are being amortized on average over approximately 13 years. Identifiable intangible assets that are subject to amortization are evaluated for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. Identifiable intangible assets not subject to amortization are tested for impairment annually or more frequently if events warrant. The impairment test consists of a qualitative assessment to determine whether it is more likely than not that the asset is impaired. Based on management’s analysis of qualitative factors, we determined that it was not necessary to perform a quantitative impairment test for fiscal 2014.
	Impairment tests were also completed in the fourth quarters of fiscal 2013 and 2012, which resulted in no impairment charges for either of these fiscal years.
	Income Taxes - In the preparation of our consolidated financial statements, the calculation of income taxes by management is based upon the estimated effective rate applicable to operating results for the full fiscal year. This includes estimating the current tax liability as well as assessing differences resulting from different treatment of items for tax and book accounting purposes. Differences that are temporary in nature result in deferred tax assets and liabilities, which are recorded on the balance sheet, while the differences that are permanent in nature impact the income tax expense recorded on the income statement and impact the effective tax rate for the fiscal year. The deferred tax assets and liabilities are analyzed regularly and management assesses the likelihood that deferred tax assets will be recovered from future taxable income. We record any interest and penalties related to income taxes as income tax expense in the statements of income.
	The effect of income tax positions are recognized only if those positions are more likely than not of being sustained. Changes in recognition or measurement are made as facts and circumstances change.
	Stock-Based Compensation - We account for stock-based compensation on a fair value basis. The estimated grant date fair value of each stock-based award is recognized in expense over the requisite service period (generally the vesting period). Non-vested share awards are recorded as compensation expense over the requisite service periods based on the market value on the date of grant.
	Earnings Per Share - Basic earnings per share (“EPS”) are computed by dividing net income by the weighted-average number of common shares outstanding. Diluted EPS are computed by dividing net income by the weighted-average number of common shares outstanding including the incremental shares assumed to be issued upon the exercise of stock options and the incremental shares assumed to be issued as performance units and restricted stock. Basic and diluted EPS were calculated using the following:
		30-Mar-14	31-Mar-13	April 1, 2012
	Weighted average common shares outstanding — basic	10,544,467	10,464,820	10,339,391
	Dilutive impact of stock performance units, restricted stock, and stock options	55,288	76,322	69,182
	Weighted average common shares outstanding — diluted	10,599,755	10,541,142	10,408,573
	There were no shares or stock options excluded from the calculation of weighted average common shares for diluted EPS for fiscal 2014, 2013 or 2012.
	Derivative Instruments and Hedging Activities - We do not have any freestanding or embedded derivatives and it is our practice to not enter into contracts that contain them.

Business_Combinations

Business Combinations	12 Months Ended
	Mar. 30, 2014
Business Combinations [Abstract]	'
Business Combinations	'
	Business Combinations
	Acquisition of Advance Chemical Solutions, Inc.: On October 1, 2013, we acquired substantially all of the assets of Advance Chemical Solutions, Inc. (“ACS”), under the terms of an asset purchase agreement with ACS and its shareholders. We paid $2.4 million in cash, and may be obligated to pay an aggregate of $0.5 million in additional consideration to ACS over the next three years. The amount of such additional payments will be based on the achievement of certain financial performance targets for each of the next three years. Costs associated with this transaction were not material to our company and were expensed as incurred.
	The acquisition has been accounted for under the acquisition method of accounting, under which the total estimated purchase price is allocated to the net tangible and intangible assets of ACS acquired in connection with the acquisition, based on their estimated fair values.
	In connection with this acquisition, we estimated the fair value of the future contingent consideration payable and recorded $0.4 million for such consideration on our balance sheet. We have determined that this liability is a Level 3 fair value measurement within the FASB’s fair value hierarchy, and such liability is adjusted to fair value at each reporting date, with the adjustment reflected in selling, general and administrative expenses. The fair value adjustments recorded during the twelve months ended March 30, 2014 were immaterial.
	We estimated the fair value of the assets acquired and liabilities assumed to be $2.8 million using a discounted cash flow analysis (income approach). Fair values of acquired assets and liabilities include: $0.4 million of net working capital and fixed assets; $1.5 million to intangible assets; and $0.9 million to goodwill. The goodwill recognized as a result of the ACS acquisition is primarily attributable to expected synergies. Such goodwill is deductible for tax purposes.
	ACS had revenues of approximately $4 million for the 12 months ended September 30, 2013. The results of its operations since the acquisition date, and the assets including the goodwill associated with this acquisition, are included in our Water Treatment segment.

Cash_and_Cash_Equivalents_and_

Cash and Cash Equivalents and Investments	12 Months Ended
	Mar. 30, 2014
Cash and Cash Equivalents [Abstract]	'
Cash and Cash Equivalents and Investments	'
	Cash and Cash Equivalents and Investments
	The following table presents information about our financial assets that are measured at fair value on a recurring basis as of March 30, 2014 and March 31, 2013, and indicates the fair value hierarchy of the valuation techniques utilized to determine such fair value.
	Description		30-Mar-14		Level 1		Level 2			Level 3
	(In thousands)
	Assets:
	Cash		$	33,486	$	33,486	$	—		$	—
	Certificates of deposit		24,437		—		24,437			—
	Municipal Bonds		5,258		—		5,258			—
	Description		31-Mar-13		Level 1		Level 2			Level 3
	(In thousands)
	Assets:
	Cash		$	28,715	$	28,715	$	—		$	—
	Certificates of deposit		21,222		—		21,222			—
	Our financial assets that are measured at fair value on a recurring basis are CD’s and municipal bonds, with maturities ranging from three months to three years which fall within valuation technique Level 2. The CD’s and municipal bonds are classified as investments in current assets and noncurrent assets on the condensed consolidated balance sheets. As of March 30, 2014, the CD’s and municipal bonds had a fair value of $13.8 million in current assets and $15.9 million in noncurrent assets.
	The carrying value of cash and cash equivalents accounts approximates fair value, as maturities are three months or less.
	The contractual maturities of available-for-sale securities at March 30, 2014 and March 31, 2013 are shown in the table below:
		March 30, 2014								31-Mar-13
	(In thousands)		Amortized		Fair Value		Unrealized			Amortized		Fair Value		Unrealized
			Cost				Gain/(loss)			Cost				Gain/(loss)
	Within one year		$	13,864	$	13,843	$	(21	)	$	15,615	$	15,625	$	10
	Between one and three years		15,890		15,852		(38		)	5,590		5,597		7
	Total available-for-sale securities		$	29,754	$	29,695	$	(59	)	$	21,205	$	21,222	$	17
	Realized gains and losses were not material for fiscal 2014, 2013 and 2012.

Inventories

Inventories	12 Months Ended
	Mar. 30, 2014
Inventory Disclosure [Abstract]	'
Inventories	'
	Inventories
	Inventories at March 30, 2014 and March 31, 2013 consisted of the following:
		2014			2013
	(In thousands)
	Inventory (FIFO basis)	$	31,344		$	35,281
	LIFO reserve	(5,152		)	(7,073		)
	Net inventory	$	26,192		$	28,208
	The FIFO value of inventories accounted for under the LIFO method was $28.5 million at March 30, 2014 and $30.3 million at March 31, 2013. The remainder of the inventory was valued and accounted for under the FIFO method.
	We decreased the LIFO reserve by $1.9 million in fiscal 2014 and $0.4 million in fiscal 2013 due primarily to lower levels of inventory at the end of the year.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	12 Months Ended
	Mar. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Intangible Assets	'
	Goodwill and Other Identifiable Intangible Assets
	The changes in the carrying amount of goodwill were as follows:
	(In thousands)	Amount
	Balance as of April 1, 2012	$	6,495
	Fiscal 2013 activity	—
	Balance as of March 31, 2013	6,495
	Fiscal 2014 activity (ACS Acquisition)	897
	Balance as of March 30, 2014	$	7,392
	Through fiscal 2013, all of our goodwill was related to our Industrial operating segment. The increase in goodwill during fiscal 2014 relates to the acquisition of ACS, and is recorded as part of our Water Treatment segment.
	The following is a summary of our intangible assets as of March 30, 2014 and March 31, 2013:
			2014							2013
			Gross Amount		Accumulated			Net		Gross Amount		Accumulated			Net
					Amortization							Amortization
	(In thousands)
	Finite-life intangible assets:
	Customer relationships		$	6,913	$	(1,292	)	$	5,621	$	5,508	$	(981	)	$	4,527
	Trademark		1,335		(421		)	914		1,240		(274		)	966
	Trade secrets		962		(768		)	194		962		(640		)	322
	Carrier relationships		800		(257		)	543		800		(177		)	623
	Other finite-life intangible assets		341		(331		)	10		339		(326		)	13
	Total finite-life intangible assets		10,351		(3,069		)	7,282		8,849		(2,398		)	6,451
	Indefinite-life intangible assets		1,227		—			1,227		1,227		—			1,227
	Total intangible assets, net		$	11,578	$	(3,069	)	$	8,509	$	10,076	$	(2,398	)	$	7,678
	Intangible asset amortization expense was $0.7 million during fiscal 2014, $0.6 million during fiscal 2013, and $0.6 million during fiscal 2012.
	The estimated future amortization expense for identifiable intangible assets during the next five years is as follows:
	(In thousands)		2015		2016			2017		2018		2019
	Estimated amortization expense		$	730	$	616		$	570	$	558	$	550

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Mar. 30, 2014
Equity [Abstract]	'
Accumulated Other Comprehensive Income (Loss)	'
	Accumulated Other Comprehensive Income (Loss)
	Components of accumulated other comprehensive income (loss) on our balance sheet, net of tax, were as follows:
	(In thousands)	2014			2013
	Unrealized gain (loss) on:
	Available-for-sale investments	$	(36	)	$	11
	Post-retirement plan liability adjustments	(8		)	(117		)
	Accumulated other comprehensive loss	$	(44	)	$	(106	)

Share_Based_Compensation

Share Based Compensation	12 Months Ended
	Mar. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Share-Based Compensation	'
	Share-Based Compensation
	Performance-Based Restricted Stock Units.  Our Board of Directors has approved a performance-based equity compensation arrangement for our executive officers. This performance-based arrangement provides for the grant of performance-based restricted stock units that represent a possible future issuance of restricted shares of our common stock based on our pre-tax income target for the applicable fiscal year. The actual number of restricted shares to be issued to each executive officer will be determined when our final financial information becomes available after the applicable fiscal year and will be between zero shares and 39,833 shares in the aggregate for fiscal 2014. The restricted shares issued 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 then-converted restricted stock over the life of the awards.
	The following table represents the restricted stock activity for fiscal 2014:
		Shares		Weighted-
				Average Grant
				Date Fair Value
	Outstanding at beginning of year	63,244		$	34.26
	Granted	28,648		40.25
	Vested	(36,182	)	35.2
	Forfeited or expired	(3,606	)	33.01
	Outstanding at end of year	52,104		$	36.99
	The weighted average grant date fair value of restricted shares issued in fiscal 2014, 2013 and 2012 was $40.25, $33.01, and $35.39, respectively. We recorded compensation expense on performance-based restricted stock of approximately $0.8 million for fiscal 2014, $1.1 million for fiscal 2013 and $0.8 million for fiscal 2012, substantially all of which was recorded in selling, general and administrative (“SG&A”) expense in the Consolidated Statements of Income. The total fair value of performance-based restricted stock units vested in fiscal 2014 was $1.3 million compared to zero in fiscal 2013 and $0.3 million in fiscal 2012.
	Until the performance-based restricted stock units result in the issuance of restricted stock, the amount of expense recorded each period is dependent upon our estimate of the number of shares that will ultimately be issued and our then current common stock price. Upon issuance of restricted stock, we record compensation expense over the remaining vesting period using the award date closing price. Unrecognized compensation expense related to non-vested restricted stock and non-vested restricted share units as of March 30, 2014 was $1.0 million and is expected to be recognized over a weighted average period of 1.0 years.
	The benefits of tax deductions in excess of recognized compensation costs from share-based compensation are recorded as a change in additional paid-in capital rather than a deduction of taxes paid. The amount of excess tax benefit (expense) recognized and recorded in additional paid-in capital resulting from share-based compensation cost was $(0.2) million in fiscal 2014, $0.5 million in fiscal 2013 and $0.7 million in 2012.
	Restricted Stock Awards.  As part of their retainer, the Board of Directors receives restricted stock for their Board services. The restricted stock awards are expensed over the requisite vesting period, which begins on the date of issuance and ends on the date of the next Annual Meeting of Shareholders, based on the market value on the date of grant. The following table represents the Board’s restricted stock activity for fiscal 2014:
		Shares		Weighted-
				Average Grant
				Date Fair Value
	Outstanding at beginning of period	5,724		$	36.65
	Granted	6,055		40.42
	Vested	(5,724	)	36.65
	Forfeited or expired	—		—
	Outstanding at end of period	6,055		$	40.42
	Annual expense related to the value of restricted stock was $0.2 million for each of fiscal 2014, 2013 and 2012, all of which was recorded in SG&A expense in the Consolidated Statements of Income. Unrecognized compensation expense related to non-vested restricted stock awards as of March 30, 2014 was $0.1 million and is expected to be recognized over a weighted average period of 0.3 years.
	Stock Option Awards. Our Board of Directors (the “Board”) previously approved a long-term incentive equity compensation arrangement for our executive officers that provided for the grant of non-qualified stock options that vested at the end of a three-year period, although no stock options have been granted under this arrangement since the fiscal year ended March 28, 2010. As of March 30, 2014 we had 9,333 stock options outstanding and exercisable at a weighted average exercise price of $19.90. No expense was recorded in fiscal 2014 or 2013 related to the value of stock options. Expense related to the value of stock options was $0.1 million for fiscal year 2012, substantially all of which was recorded in SG&A expense in the Consolidated Statements of Income. The weighted average remaining life of all outstanding and exercisable options as of March 30, 2014 is 5.2 years years.
	The following table represents the stock option activity for fiscal 2014:
		Total Outstanding						Exercisable
	(In thousands, except share data)	Shares		Weighted-		Aggregate		Shares		Weighted-		Aggregate
				Average		Intrinsic				Average		Intrinsic
				Exercise		Value				Exercise		Value
				Price						Price
	Outstanding at beginning of year	18,666		$	19.9	$	665	18,666		$	19.9	$	665
	Granted	—		—				—		—
	Vested	—		—				—		—
	Exercised	(9,333	)	19.9				(9,333	)	19.9
	Forfeited or expired	—		—				—		—
	Outstanding at end of year	9,333		$	19.9	$	297	9,333		$	19.9	$	297

Profit_Sharing_Employee_Stock_

Profit Sharing, Employee Stock Ownership, Employee Stock Purchase and Pension Plans	12 Months Ended
	Mar. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Profit Sharing, Employee Stock Ownership, Employee Stock Purchase and Pension Plans	'
	Profit Sharing, Employee Stock Ownership, Employee Stock Purchase and Pension Plans
	Company sponsored plans. Substantially all of our non-bargaining unit employees are eligible to participate in a company sponsored profit sharing plan. Contributions are made at our discretion subject to a maximum amount allowed under the Internal Revenue Code. Beginning in fiscal 2013, the profit sharing plan contribution level for each employee will depend upon date of hire, with those employees hired after April 1, 2012 eligible to receive a contribution that is 50% of the contribution made for employees hired on or before April 1, 2012. Our contribution to the profit sharing plan for fiscal 2014 and fiscal 2013 was 5% of each employee’s eligible compensation for employees hired on or before April 1, 2012. In addition to the changes in the profit sharing plan for fiscal 2013, we introduced a 401(k) plan that will allow employees to contribute pre-tax earnings up to the maximum amount allowed under the Internal Revenue Code, with an employer match of up to 5% of the employee’s eligible compensation. Our contribution to the profit sharing plan was 15% of each employee’s eligible compensation in fiscal year 2012.
	We have an employee stock ownership plan (“ESOP”) covering substantially all of our non-bargaining unit employees. Contributions are made at our discretion subject to a maximum amount allowed under the Internal Revenue Code. Beginning in fiscal 2013, the ESOP contribution level for each employee will depend upon date of hire, with those employees hired after April 1, 2012 eligible to receive a contribution that is 50% of the contribution made for employees hired on or before April 1, 2012. Our contribution to the ESOP for fiscal 2014 and fiscal 2013 was 5% of each employee’s eligible compensation for employees hired on or before April 1, 2012. Our contribution to the ESOP was 5% of each employee’s eligible compensation for fiscal year 2012.
	We have an employee stock purchase plan (“ESPP”) covering substantially all of our employees. The ESPP allows employees to purchase newly-issued shares of the Company’s common stock at a discount from market.
	In fiscal 2012, Vertex employees participated in a 401(k) plan that included an employer match of up to 3% of the employee’s eligible compensation and a discretionary Company contribution. The total company contribution to this plan was $0.2 million. Beginning in fiscal 2013, Vertex employees are included within the Company’s retirement plans outlined above.
	In March 2013, concurrent with our withdrawal from a multiemployer pension plan described below, we established a retirement plan and ESOP for our collective bargaining unit employees. Each of these plans is subject to a maximum amount allowed under the Internal Revenue Code. The retirement plan provides for a contribution of 5% of each employee’s eligible wages annually for employees who were eligible to enter the plan on March 1, 2013 and a contribution of 2.5% of each employee’s eligible wages annually for employees who entered the plan subsequent to March 1, 2013. Additionally, the retirement plan includes a 401(k) plan that will allow employees to contribute pre-tax earnings up to the maximum amount allowed under the Internal Revenue Code, with an employer match of up to 5% of the employee’s eligible compensation. The ESOP provides for contributions of 5% of each employee’s eligible wages annually for employees who were eligible to enter the plan on March 1, 2013 and a contribution of 2.5% of each employee’s eligible wages annually for employees who enter the plan subsequent to March 1, 2013.
	The following represents the contribution expense for the company sponsored profit sharing, ESOP, ESPP and 401(k) plans for fiscal 2014, 2013 and 2012:
	Benefit Plan	2014		2013		2012
	(In thousands)
	Non-bargaining unit employee plans:
	Profit sharing	$	1,231	$	1,204	$	2,616
	401(K) matching contributions	980		1,206		—
	ESOP	1,231		1,203		802
	Vertex plan	—		—		175
	Bargaining unit employee plans	500		—		—
	ESPP - all employees	257		289		262
	Total contribution expense	$	4,199	$	3,902	$	3,855
	Multiemployer pension plan. In fiscal 2013, we concluded negotiations with two collective bargaining units to discontinue our participation in the Central States, Southeast and Southwest Areas Pension Fund (“CSS” or “the plan”), a collectively bargained multiemployer pension plan, and as a result we recorded a pre-tax charge of $7.2 million (approximately $4.5 million after tax, or $0.43 per share, fully diluted). This charge represents the discounted value of our estimated withdrawal payment obligation and has been recorded as a charge to cost of sales in our Industrial segment.
	Payment of our share of the unfunded vested benefit liability will be made over 20 years and is subject to a cap. At the end of the 20-year period we will have no further liability, even if our share of the unfunded vested benefit liability had not yet been paid in full. The aggregate cash payments to be made total approximately $9.3 million, or $467,000 per year. Our payments began in the third quarter of fiscal 2014.
	We made contributions to CSS of approximately $0.4 million in each of fiscal 2013 and 2012.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Mar. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	Leases — We have various operating leases for primarily buildings and land on which some of our operations are located. Future minimum lease payments due under operating leases with an initial term of one year or more at March 30, 2014 are as follows:
	(In thousands)	2015		2016		2017		2018		2019		Thereafter
	Minimum lease payment	$	1,478	$	1,254	$	1,111	$	1,054	$	1,061	$	4,061
	Total rental expense for the fiscal years 2014, 2013 and 2012 was as follows:
		2014		2013		2012
	(In thousands)
	Minimum rentals	$	1,223	$	818	$	617
	Contingent rentals	110		110		102
	Total rental expense	$	1,333	$	928	$	719
	Litigation - As of March 30, 2014 there were 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.
	In the first quarter of fiscal 2013, we entered into a settlement agreement with a chemical supplier to us, pursuant to which we mutually resolved the previously disclosed litigation and all disputes among us. The settlement agreement provided for a cash payment by us to the supplier and provided that both parties enter into new contracts for the supply by the supplier of certain chemicals to us. Our obligations under the settlement agreement resulted in a $3.2 million charge to pre-tax income recorded in cost of sales (approximately $2.0 million or $0.19 per share, fully diluted, after tax) in the first quarter of fiscal 2013.
	Asset Retirement Obligations - We have three leases of land which contain terms that state that at the end of the lease term (currently 2023 for one lease and 2018 for the other two leases if the leases are not renewed), we have a specified amount of time to remove the property and buildings. At that time, anything that remains on the land becomes the property of the lessor, and the lessor has the option to either maintain the property or remove the property at our expense. We have not been able to reasonably estimate the fair value of the asset retirement obligations, primarily due to the combination of the following factors: The leases do not expire in the near future; we have a history of extending the leases with the lessors and currently intend to do so at expiration of the lease periods; the lessors do not have a history of terminating leases with their tenants; and because it is more likely than not that the buildings will have value at the end of the lease life and therefore, may not be removed by either the lessee or the lessor. Therefore, in accordance with accounting guidance related to asset retirement and environmental obligations, we have not recorded an asset retirement obligation as of March 30, 2014. We will continue to monitor the factors surrounding the requirement to record an asset retirement obligation and will recognize the fair value of a liability in the period in which it is incurred and a reasonable estimate can be made.

Income_Taxes

Income Taxes	12 Months Ended
	Mar. 30, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	The provisions for income taxes for fiscal 2014, 2013 and 2012 are as follows:
		2014				2013				2012
	(In thousands)
	Federal — current	$	7,612			$	8,967			$	8,632
	State — current	1,255				2,417				2,546
	Total current	8,867				11,384				11,178
	Federal — deferred	676				(2,466		)		2,796
	State — deferred	424				(600		)		316
	Total deferred	1,100				(3,066		)		3,112
	Total provision	$	9,967			$	8,318			$	14,290
	Our effective tax rate for fiscal 2014 was reduced by a non-recurring state tax benefit of $0.4 million. During fiscal 2013, we amended previously filed U.S. Federal tax returns resulting in an increase of $0.8 million in the benefits related to the domestic manufacturing deduction and investment tax credits, which reduced our tax rate for that year. Reconciliations of the provisions for income taxes, based on income from continuing operations, to the applicable federal statutory income tax rate of 35% are listed below.
		2014			2013			2012
	Statutory federal income tax	35	%		35	%		35	%
	State income taxes, net of federal deduction	3.2	%		4.9	%		5	%
	ESOP dividend deduction on allocated shares	(0.8	)%		(1.0	)%		(0.7	)%
	Domestic production deduction	(2.1	)%		(2.7	)%		(0.9	)%
	Impact of amended tax returns	—	%		(3.3	)%		—	%
	Other — net	0.2	%		(0.2	)%		0.2	%
	Total	35.5	%		32.7	%		38.6	%
	The tax effects of items comprising our net deferred tax asset (liability) as of March 30, 2014 and March 31, 2013 are as follows:
	(In thousands)	2014				2013
	Deferred tax assets:
	Trade receivables	$	191			$	188
	Stock compensation accruals	1,031				776
	Pension withdrawal liability	2,872				2,902
	Other	842				1,100
	Total deferred tax assets	$	4,936			$	4,966
	Deferred tax liabilities:
	Inventories	$	(3,618	)		$	(3,319	)
	Prepaid	(727		)		(525		)
	Excess of tax over book depreciation	(13,221		)		(11,385		)
	Amortization of intangibles	(456		)		(354		)
	Total deferred tax liabilities	$	(18,022	)		$	(15,583	)
	Net deferred tax liabilities	$	(13,086	)		$	(10,617	)
	As of March 30, 2014, the Company has determined that it is more likely than not that the deferred tax assets at March 30, 2014 will be realized either through future taxable income or reversals of taxable temporary differences. As of March 30, 2014 and March 31, 2013, there were no unrecognized tax benefits. Accordingly, a tabular reconciliation from beginning to ending periods is not provided.
	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 March 29, 2009 are closed to examination by the Internal Revenue Service, and with few exceptions, state and local income tax jurisdictions.

Discontinued_Operations

Discontinued Operations	12 Months Ended
	Mar. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]	'
Discontinued Operations	'
	Discontinued Operations
	During the fiscal year ended March 29, 2009, we agreed to sell our inventory and entered into a marketing agreement regarding the business of our Pharmaceutical segment, which provided pharmaceutical chemicals to retail pharmacies and small-scale pharmaceutical manufacturers. We have no remaining obligations to fulfill under the agreement. The results of the Pharmaceutical segment have been reported as discontinued operations for all periods presented.

Segment_Information

Segment Information	12 Months Ended
	Mar. 30, 2014
Segment Reporting [Abstract]	'
Segment Information	'
	Segment Information
	We have two reportable segments: Industrial and Water Treatment. The accounting policies of the segments are the same as those described in the summary of significant accounting policies. Product costs and expenses for each segment are based on actual costs incurred along with cost allocation of shared and centralized functions. 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. The segments do not have separate accounting, administration, customer service or purchasing functions. There are no intersegment sales and no operating segments have been aggregated. Given our nature, it is not practical to disclose revenues from external customers for each product or each group of similar products. 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.
	Reportable Segments	Industrial		Water		Total
				Treatment
	(In thousands)
	Fiscal Year Ended March 30, 2014:
	Sales	$	244,888	$	103,375	$	348,263
	Gross profit	32,041		29,559		61,600
	Selling, general, and administrative expenses	19,781		13,729		33,510
	Operating income	12,260		15,830		28,090
	Identifiable assets*	$	141,506	$	29,001	$	170,507
	Fiscal Year Ended March 31, 2013:
	Sales	$	248,556	$	101,831	$	350,387
	Gross profit	28,878		28,058		56,936
	Selling, general, and administrative expenses	19,923		11,683		31,606
	Operating income	8,955		16,375		25,330
	Identifiable assets*	$	143,827	$	25,448	$	169,275
	Fiscal Year Ended April 1, 2012:
	Sales	$	251,451	$	92,383	$	343,834
	Gross profit	40,357		25,511		65,868
	Selling, general, and administrative expenses	19,805		10,954		30,759
	Operating income	20,552		14,557		35,109
	Identifiable assets*	$	129,782	$	23,543	$	153,325
	* Unallocated assets consisting primarily of cash and cash equivalents, investments and prepaid expenses were $66.7 million at March 30, 2014, $52.9 million at March 31, 2013 and $48.0 million at April 1, 2012. Additionally, assets associated with the discontinued operations of the Pharmaceutical segment were zero at March 30, 2014 and March 31, 2013, and $1.2 million at April 1, 2012.
	In fiscal 2013, gross profit for our Industrial segment was negatively impacted by a $7.2 million (pre-tax) charge related to our withdrawal from a multiemployer pension plan (see Note 8 for further discussion) as well as a $3.2 million (pre-tax) charge related to a legal settlement (see Note 9 for further discussion). The cumulative impact of these pre-tax charges to the industrial gross profit for fiscal 2013 was $10.4 million.

Selected_Quarterly_Financial_D

Selected Quarterly Financial Data (Unaudited)	12 Months Ended
	Mar. 30, 2014
Quarterly Financial Information Disclosure [Abstract]	'
Selected Quarterly Financial Data (Unaudited)	'
	Selected Quarterly Financial Data (Unaudited)
	(In thousands, except per share data)	Fiscal 2014
		First		Second		Third		Fourth
	Sales	$	94,744	$	86,599	$	81,697	$	85,223
	Gross profit	17,231		16,570		13,550		14,249
	Selling, general, and administrative expenses	8,970		8,293		8,167		8,080
	Operating income	8,261		8,277		5,383		6,169
	Income from continuing operations, net of tax	5,112		5,207		3,480		4,295
	Income from discontinued operations, net of tax	—		—		—		—
	Net income	$	5,112	$	5,207	$	3,480	$	4,295
	Basic net income per share	$	0.49	$	0.49	$	0.33	$	0.41
	Diluted net income per share	$	0.48	$	0.49	$	0.33	$	0.4
		Fiscal 2013
		First		Second		Third		Fourth
	Sales	$	90,099	$	87,160	$	85,527	$	87,601
	Gross profit	15,307		19,196		8,126		14,307
	Selling, general, and administrative expenses	8,227		7,455		7,617		8,307
	Operating income	7,080		11,741		509		6,000
	Income from continuing operations, net of tax	4,365		7,230		1,348		4,165
	Income from discontinued operations, net of tax	18		—		—		—
	Net income	$	4,383	$	7,230	$	1,348	$	4,165
	Basic net income per share	$	0.42	$	0.69	$	0.13	$	0.4
	Diluted net income per share	$	0.42	$	0.69	$	0.13	$	0.39
	In the first quarter of fiscal 2013, we recorded a $3.2 million (pre-tax) charge related to a legal settlement (see Note 9 for further discussion).  In the third quarter of fiscal 2013, we recorded a $7.2 million (pre-tax) charge related to our withdrawal from a multiemployer pension plan (see Note 8 for further discussion).  Both items negatively impacted gross profit.

Nature_of_Business_and_Signifi1

Nature of Business and Significant Accounting Policies (Policies)	12 Months Ended
	Mar. 30, 2014
Accounting Policies [Abstract]	'
Fiscal Year	'
	Our fiscal year is a 52/53-week year ending on the Sunday closest to March 31. Our fiscal years ended March 30, 2014 (“fiscal 2014”), March 31, 2013 (“fiscal 2013”) and April 1, 2012 (“fiscal 2012”) were, and the fiscal year ending on March 29, 2015 (“fiscal 2015”) will be, 52 weeks.
Principles of Consolidation	'
	The consolidated financial statements include the accounts of Hawkins, Inc. and its wholly-owned subsidiaries. All intercompany transactions and accounts have been eliminated.
Estimates	'
	The preparation of financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reported period. Actual results could differ from those estimates.
Revenue Recognition	'
	We recognize revenue when there is evidence that the customer has agreed to purchase the product, the price and terms of the sale are fixed, the product has shipped and title has passed to our customer, performance has occurred, and collection of the receivable is reasonably assured.
Shipping and Handling	'
	All shipping and handling amounts billed to customers are included in revenues. Costs incurred related to the shipping and the handling of products are included in cost of sales.
Fair Value Measurements	'
	The financial assets and liabilities that are re-measured and reported at fair value for each reporting period include marketable securities and contingent consideration payable related to the ACS Acquisition. There are no fair value measurements with respect to nonfinancial assets or liabilities that are recognized or disclosed at fair value in our consolidated financial statements on a recurring basis.
	Assets and liabilities measured at fair value are classified using the following hierarchy, which is based upon the transparency of inputs to the valuation as of the measurement date:
	Level 1:  Valuation is based on observable inputs such as quoted market prices (unadjusted) for identical assets or liabilities in active markets.
	Level 2:  Valuation is based on inputs such as quoted market prices for similar assets or liabilities in active markets or other inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.
	Level 3:  Valuation is based upon other unobservable inputs that are significant to the fair value measurement.
	In making fair value measurements, observable market data must be used when available. When inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement.
Cash Equivalents	'
	Cash equivalents include all liquid debt instruments (primarily cash funds and money market accounts) purchased with an original maturity of three months or less. The balances maintained at financial institutions may, at times, exceed federally insured limits.
Investments	'
	Available-for-sale securities consist of certificates of deposit (“CD’s”) and municipal bonds and are valued at current market value, with the resulting unrealized gains and losses excluded from earnings and reported, net of tax, as a separate component of shareholders’ equity until realized. Any impairment loss to reduce an investment’s carrying amount to its fair market value is recognized in income when a decline in the fair market value of an individual security below its cost or carrying value is determined to be other than temporary.
Trade Receivables	'
	Financial instruments, which potentially subject us to a concentration of credit risk, principally consist of trade receivables. We sell our principal products to a large number of customers in many different industries. There are no concentrations of credit risk with a single customer from a particular service or geographic area that would significantly impact us in the near term. To reduce credit risk, we routinely assess the financial strength of our customers. We record an allowance for doubtful accounts to reduce our receivables to an amount we estimate is collectible from our customers. Estimates used in determining the allowance for doubtful accounts are based on historical collection experience, current trends, aging of accounts receivable and periodic evaluations of our customers’ financial condition. We invest our excess cash balances at times in CD’s, municipal bonds and a money market account at two separate financial institutions where the cash balances may exceed federally insured limits. The institutions are two of the largest commercial banking institutions in the country and both have maintained a AA credit rating.
Inventories	'
	Inventories, consisting primarily of finished goods, are primarily valued at the lower of cost or net realizable value, with cost for the vast majority of our inventory determined using the last-in, first-out (“LIFO”) method. The amount of inventory valued using the first-in, first-out (“FIFO”) method represents approximately 9% of the total FIFO inventory balance at March 30, 2014.
Property, Plant and Equipment	'
	Property is stated at cost and depreciated or amortized over the lives of the assets, using the straight-line method. Estimated lives are: 10 to 40 years for buildings and improvements; 3 to 20 years for machinery and equipment; 3 to 10 years for transportation equipment; and 3 to 10 years for office furniture and equipment including computer systems. Leasehold improvements are depreciated over the lesser of their estimated useful lives or the remaining lease term.
	Significant improvements that add to productive capacity or extend the lives of properties are capitalized. Costs for repairs and maintenance are charged to expense as incurred. When property is retired or otherwise disposed of, the cost and related accumulated depreciation or amortization are removed from the accounts and any related gains or losses are included in income.
	We review the recoverability of long-lived assets to be held and used, such as property, plant and equipment, when events or changes in circumstances occur that indicate the carrying value of the asset group may not be recoverable, such as prolonged industry downturn or significant reductions in projected future cash flows. The assessment of possible impairment is based on our ability to recover the carrying value of the asset group from the expected future pre-tax cash flows (undiscounted) of the related operations. If these cash flows are less than the carrying value of such asset group, an impairment loss would be measured by the amount the carrying value exceeds the fair value of the long-lived asset group. The measurement of impairment requires us to estimate future cash flows and the fair value of long-lived assets. No material long-lived assets were determined to be impaired during fiscal years 2014, 2013 or 2012.
Goodwill and Identifiable Intangible Assets	'
	Goodwill represents the excess of the cost of acquired businesses over the fair value of identifiable tangible net assets and identifiable intangible assets purchased. Goodwill is tested at least annually for impairment, and is tested for impairment more frequently if events or changes in circumstances indicate that the asset might be impaired. As of January 1, 2014, the company performed an analysis of qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform a two-step goodwill impairment test. Based on management’s analysis of qualitative factors, we determined that it was not necessary to perform a two-step goodwill impairment test for either reporting unit.
	Our primary identifiable intangible assets include customer lists, trade secrets, non-compete agreements, trademarks, and trade names acquired in previous business acquisitions. Identifiable intangibles with finite lives are amortized and those identifiable intangibles with indefinite lives are not amortized. The values assigned to the intangible assets with finite lives are being amortized on average over approximately 13 years. Identifiable intangible assets that are subject to amortization are evaluated for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. Identifiable intangible assets not subject to amortization are tested for impairment annually or more frequently if events warrant. The impairment test consists of a qualitative assessment to determine whether it is more likely than not that the asset is impaired. Based on management’s analysis of qualitative factors, we determined that it was not necessary to perform a quantitative impairment test for fiscal 2014.
	Impairment tests were also completed in the fourth quarters of fiscal 2013 and 2012, which resulted in no impairment charges for either of these fiscal years.
Income Taxes	'
	In the preparation of our consolidated financial statements, the calculation of income taxes by management is based upon the estimated effective rate applicable to operating results for the full fiscal year. This includes estimating the current tax liability as well as assessing differences resulting from different treatment of items for tax and book accounting purposes. Differences that are temporary in nature result in deferred tax assets and liabilities, which are recorded on the balance sheet, while the differences that are permanent in nature impact the income tax expense recorded on the income statement and impact the effective tax rate for the fiscal year. The deferred tax assets and liabilities are analyzed regularly and management assesses the likelihood that deferred tax assets will be recovered from future taxable income. We record any interest and penalties related to income taxes as income tax expense in the statements of income.
	The effect of income tax positions are recognized only if those positions are more likely than not of being sustained. Changes in recognition or measurement are made as facts and circumstances change.
Stock-Based Compensation	'
	We account for stock-based compensation on a fair value basis. The estimated grant date fair value of each stock-based award is recognized in expense over the requisite service period (generally the vesting period). Non-vested share awards are recorded as compensation expense over the requisite service periods based on the market value on the date of grant.
Earnings Per Share	'
	Basic earnings per share (“EPS”) are computed by dividing net income by the weighted-average number of common shares outstanding. Diluted EPS are computed by dividing net income by the weighted-average number of common shares outstanding including the incremental shares assumed to be issued upon the exercise of stock options and the incremental shares assumed to be issued as performance units and restricted stock.
Derivatives Instruments and Hedging Activities	'
	We do not have any freestanding or embedded derivatives and it is our practice to not enter into contracts that contain them.

Nature_of_Business_and_Signifi2

Nature of Business and Significant Accounting Policies (Tables)	12 Months Ended
	Mar. 30, 2014
Accounting Policies [Abstract]	'
Schedule of earnings per share, basic and diluted	'
	Basic and diluted EPS were calculated using the following:
		30-Mar-14	31-Mar-13	April 1, 2012
	Weighted average common shares outstanding — basic	10,544,467	10,464,820	10,339,391
	Dilutive impact of stock performance units, restricted stock, and stock options	55,288	76,322	69,182
	Weighted average common shares outstanding — diluted	10,599,755	10,541,142	10,408,573

Cash_and_Cash_Equivalents_and_1

Cash and Cash Equivalents and Investments (Tables)	12 Months Ended
	Mar. 30, 2014
Cash and Cash Equivalents [Abstract]	'
Summary of financial assets and liabilities measured at fair value	'
	The following table presents information about our financial assets that are measured at fair value on a recurring basis as of March 30, 2014 and March 31, 2013, and indicates the fair value hierarchy of the valuation techniques utilized to determine such fair value.
	Description		30-Mar-14		Level 1		Level 2			Level 3
	(In thousands)
	Assets:
	Cash		$	33,486	$	33,486	$	—		$	—
	Certificates of deposit		24,437		—		24,437			—
	Municipal Bonds		5,258		—		5,258			—
	Description		31-Mar-13		Level 1		Level 2			Level 3
	(In thousands)
	Assets:
	Cash		$	28,715	$	28,715	$	—		$	—
	Certificates of deposit		21,222		—		21,222			—
Available-for-sale securities	'
	The contractual maturities of available-for-sale securities at March 30, 2014 and March 31, 2013 are shown in the table below:
		March 30, 2014								31-Mar-13
	(In thousands)		Amortized		Fair Value		Unrealized			Amortized		Fair Value		Unrealized
			Cost				Gain/(loss)			Cost				Gain/(loss)
	Within one year		$	13,864	$	13,843	$	(21	)	$	15,615	$	15,625	$	10
	Between one and three years		15,890		15,852		(38		)	5,590		5,597		7
	Total available-for-sale securities		$	29,754	$	29,695	$	(59	)	$	21,205	$	21,222	$	17

Inventories_Tables

Inventories (Tables)	12 Months Ended
	Mar. 30, 2014
Inventory Disclosure [Abstract]	'
Summary of Inventories	'
	Inventories at March 30, 2014 and March 31, 2013 consisted of the following:
		2014			2013
	(In thousands)
	Inventory (FIFO basis)	$	31,344		$	35,281
	LIFO reserve	(5,152		)	(7,073		)
	Net inventory	$	26,192		$	28,208

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Mar. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of goodwill	'
	The changes in the carrying amount of goodwill were as follows:
	(In thousands)	Amount
	Balance as of April 1, 2012	$	6,495
	Fiscal 2013 activity	—
	Balance as of March 31, 2013	6,495
	Fiscal 2014 activity (ACS Acquisition)	897
	Balance as of March 30, 2014	$	7,392
Summary of intangible assets	'
	The following is a summary of our intangible assets as of March 30, 2014 and March 31, 2013:
			2014							2013
			Gross Amount		Accumulated			Net		Gross Amount		Accumulated			Net
					Amortization							Amortization
	(In thousands)
	Finite-life intangible assets:
	Customer relationships		$	6,913	$	(1,292	)	$	5,621	$	5,508	$	(981	)	$	4,527
	Trademark		1,335		(421		)	914		1,240		(274		)	966
	Trade secrets		962		(768		)	194		962		(640		)	322
	Carrier relationships		800		(257		)	543		800		(177		)	623
	Other finite-life intangible assets		341		(331		)	10		339		(326		)	13
	Total finite-life intangible assets		10,351		(3,069		)	7,282		8,849		(2,398		)	6,451
	Indefinite-life intangible assets		1,227		—			1,227		1,227		—			1,227
	Total intangible assets, net		$	11,578	$	(3,069	)	$	8,509	$	10,076	$	(2,398	)	$	7,678
Schedule of future amortization expense	'
	The estimated future amortization expense for identifiable intangible assets during the next five years is as follows:
	(In thousands)		2015		2016			2017		2018		2019
	Estimated amortization expense		$	730	$	616		$	570	$	558	$	550

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Mar. 30, 2014
Equity [Abstract]	'
Summary of Accumulated other comprehensive loss	'
	Components of accumulated other comprehensive income (loss) on our balance sheet, net of tax, were as follows:
	(In thousands)	2014			2013
	Unrealized gain (loss) on:
	Available-for-sale investments	$	(36	)	$	11
	Post-retirement plan liability adjustments	(8		)	(117		)
	Accumulated other comprehensive loss	$	(44	)	$	(106	)

Share_Based_Compensation_Table

Share Based Compensation (Tables)	12 Months Ended
	Mar. 30, 2014
Stock Option [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Summary of stock option	'
	The following table represents the stock option activity for fiscal 2014:
		Total Outstanding						Exercisable
	(In thousands, except share data)	Shares		Weighted-		Aggregate		Shares		Weighted-		Aggregate
				Average		Intrinsic				Average		Intrinsic
				Exercise		Value				Exercise		Value
				Price						Price
	Outstanding at beginning of year	18,666		$	19.9	$	665	18,666		$	19.9	$	665
	Granted	—		—				—		—
	Vested	—		—				—		—
	Exercised	(9,333	)	19.9				(9,333	)	19.9
	Forfeited or expired	—		—				—		—
	Outstanding at end of year	9,333		$	19.9	$	297	9,333		$	19.9	$	297
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 fiscal 2014:
		Shares		Weighted-
				Average Grant
				Date Fair Value
	Outstanding at beginning of year	63,244		$	34.26
	Granted	28,648		40.25
	Vested	(36,182	)	35.2
	Forfeited or expired	(3,606	)	33.01
	Outstanding at end of year	52,104		$	36.99
Restricted Stock Awards [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Summary of restricted stock awards	'
	The following table represents the Board’s restricted stock activity for fiscal 2014:
		Shares		Weighted-
				Average Grant
				Date Fair Value
	Outstanding at beginning of period	5,724		$	36.65
	Granted	6,055		40.42
	Vested	(5,724	)	36.65
	Forfeited or expired	—		—
	Outstanding at end of period	6,055		$	40.42

Profit_Sharing_Employee_Stock_1

Profit Sharing, Employee Stock Ownership, Employee Stock Purchase and Pension Plans (Tables)	12 Months Ended
	Mar. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Schedule of contribution expenses	'
	The following represents the contribution expense for the company sponsored profit sharing, ESOP, ESPP and 401(k) plans for fiscal 2014, 2013 and 2012:
	Benefit Plan	2014		2013		2012
	(In thousands)
	Non-bargaining unit employee plans:
	Profit sharing	$	1,231	$	1,204	$	2,616
	401(K) matching contributions	980		1,206		—
	ESOP	1,231		1,203		802
	Vertex plan	—		—		175
	Bargaining unit employee plans	500		—		—
	ESPP - all employees	257		289		262
	Total contribution expense	$	4,199	$	3,902	$	3,855

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Mar. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of future minimum rental payments for operating leases	'
	Future minimum lease payments due under operating leases with an initial term of one year or more at March 30, 2014 are as follows:
	(In thousands)	2015		2016		2017		2018		2019		Thereafter
	Minimum lease payment	$	1,478	$	1,254	$	1,111	$	1,054	$	1,061	$	4,061
Schedule of rent expense	'
	Total rental expense for the fiscal years 2014, 2013 and 2012 was as follows:
		2014		2013		2012
	(In thousands)
	Minimum rentals	$	1,223	$	818	$	617
	Contingent rentals	110		110		102
	Total rental expense	$	1,333	$	928	$	719

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Mar. 30, 2014
Income Tax Disclosure [Abstract]	'
Schedule of provisions for income taxes	'
	The provisions for income taxes for fiscal 2014, 2013 and 2012 are as follows:
		2014				2013				2012
	(In thousands)
	Federal — current	$	7,612			$	8,967			$	8,632
	State — current	1,255				2,417				2,546
	Total current	8,867				11,384				11,178
	Federal — deferred	676				(2,466		)		2,796
	State — deferred	424				(600		)		316
	Total deferred	1,100				(3,066		)		3,112
	Total provision	$	9,967			$	8,318			$	14,290
Schedule of effective income tax rate reconciliation	'
	Reconciliations of the provisions for income taxes, based on income from continuing operations, to the applicable federal statutory income tax rate of 35% are listed below.
		2014			2013			2012
	Statutory federal income tax	35	%		35	%		35	%
	State income taxes, net of federal deduction	3.2	%		4.9	%		5	%
	ESOP dividend deduction on allocated shares	(0.8	)%		(1.0	)%		(0.7	)%
	Domestic production deduction	(2.1	)%		(2.7	)%		(0.9	)%
	Impact of amended tax returns	—	%		(3.3	)%		—	%
	Other — net	0.2	%		(0.2	)%		0.2	%
	Total	35.5	%		32.7	%		38.6	%
Schedule of deferred tax assets and liabilities	'
	The tax effects of items comprising our net deferred tax asset (liability) as of March 30, 2014 and March 31, 2013 are as follows:
	(In thousands)	2014				2013
	Deferred tax assets:
	Trade receivables	$	191			$	188
	Stock compensation accruals	1,031				776
	Pension withdrawal liability	2,872				2,902
	Other	842				1,100
	Total deferred tax assets	$	4,936			$	4,966
	Deferred tax liabilities:
	Inventories	$	(3,618	)		$	(3,319	)
	Prepaid	(727		)		(525		)
	Excess of tax over book depreciation	(13,221		)		(11,385		)
	Amortization of intangibles	(456		)		(354		)
	Total deferred tax liabilities	$	(18,022	)		$	(15,583	)
	Net deferred tax liabilities	$	(13,086	)		$	(10,617	)

Segment_Information_Tables

Segment Information (Tables)	12 Months Ended
	Mar. 30, 2014
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		Total
				Treatment
	(In thousands)
	Fiscal Year Ended March 30, 2014:
	Sales	$	244,888	$	103,375	$	348,263
	Gross profit	32,041		29,559		61,600
	Selling, general, and administrative expenses	19,781		13,729		33,510
	Operating income	12,260		15,830		28,090
	Identifiable assets*	$	141,506	$	29,001	$	170,507
	Fiscal Year Ended March 31, 2013:
	Sales	$	248,556	$	101,831	$	350,387
	Gross profit	28,878		28,058		56,936
	Selling, general, and administrative expenses	19,923		11,683		31,606
	Operating income	8,955		16,375		25,330
	Identifiable assets*	$	143,827	$	25,448	$	169,275
	Fiscal Year Ended April 1, 2012:
	Sales	$	251,451	$	92,383	$	343,834
	Gross profit	40,357		25,511		65,868
	Selling, general, and administrative expenses	19,805		10,954		30,759
	Operating income	20,552		14,557		35,109
	Identifiable assets*	$	129,782	$	23,543	$	153,325
	* Unallocated assets consisting primarily of cash and cash equivalents, investments and prepaid expenses were $66.7 million at March 30, 2014, $52.9 million at March 31, 2013 and $48.0 million at April 1, 2012. Additionally, assets associated with the discontinued operations of the Pharmaceutical segment were zero at March 30, 2014 and March 31, 2013, and $1.2 million at April 1, 2012.

Selected_Quarterly_Financial_D1

Selected Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Mar. 30, 2014
Quarterly Financial Information Disclosure [Abstract]	'
Schedule of quarterly financial information (Unaudited)	'
	(In thousands, except per share data)	Fiscal 2014
		First		Second		Third		Fourth
	Sales	$	94,744	$	86,599	$	81,697	$	85,223
	Gross profit	17,231		16,570		13,550		14,249
	Selling, general, and administrative expenses	8,970		8,293		8,167		8,080
	Operating income	8,261		8,277		5,383		6,169
	Income from continuing operations, net of tax	5,112		5,207		3,480		4,295
	Income from discontinued operations, net of tax	—		—		—		—
	Net income	$	5,112	$	5,207	$	3,480	$	4,295
	Basic net income per share	$	0.49	$	0.49	$	0.33	$	0.41
	Diluted net income per share	$	0.48	$	0.49	$	0.33	$	0.4
		Fiscal 2013
		First		Second		Third		Fourth
	Sales	$	90,099	$	87,160	$	85,527	$	87,601
	Gross profit	15,307		19,196		8,126		14,307
	Selling, general, and administrative expenses	8,227		7,455		7,617		8,307
	Operating income	7,080		11,741		509		6,000
	Income from continuing operations, net of tax	4,365		7,230		1,348		4,165
	Income from discontinued operations, net of tax	18		—		—		—
	Net income	$	4,383	$	7,230	$	1,348	$	4,165
	Basic net income per share	$	0.42	$	0.69	$	0.13	$	0.4
	Diluted net income per share	$	0.42	$	0.69	$	0.13	$	0.39

Nature_of_Business_and_Signifi3

Nature of Business and Significant Accounting Policies (Details)	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
	Segment
Property, Plant and Equipment [Line Items]	'	'	'
Number of reportable segments (segment)	2	'	'
Number of weeks in fiscal year	'P52W	'P52W	'P52W
Number of weeks in next fiscal year	'P52W	'	'
Percentage of FIFO inventory (percent)	9.00%	'	'
Weighted-average common shares outstanding-basic (shares)	10,544,467	10,464,820	10,339,391
Dilutive impact of stock options, performance units, and restricted stock (shares)	55,288	76,322	69,182
Weighted average common shares outstanding b diluted (shares)	10,599,755	10,541,142	10,408,573
Weighted average number diluted shares outstanding adjustment	0	0	0
Maximum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Number of weeks in fiscal year	'P53W	'	'
Minimum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Number of weeks in fiscal year	'P52W	'	'
Average [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Finite-lived intangible asset, useful life	'13 years	'	'
Building and Building Improvements [Member] | Maximum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful lives	'40 years	'	'
Building and Building Improvements [Member] | Minimum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful lives	'10 years	'	'
Machinery and Equipment [Member] | Maximum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful lives	'20 years	'	'
Machinery and Equipment [Member] | Minimum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful lives	'3 years	'	'
Transportation Equipment [Member] | Maximum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful lives	'10 years	'	'
Transportation Equipment [Member] | Minimum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful lives	'3 years	'	'
Office Furniture, Office Equipment and Computer Systems [Member] | Maximum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful lives	'10 years	'	'
Office Furniture, Office Equipment and Computer Systems [Member] | Minimum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful lives	'3 years	'	'

Business_Combinations_Details

Business Combinations (Details) (USD $)	12 Months Ended			0 Months Ended	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012	Oct. 01, 2013	Sep. 29, 2013
				Advance Chemical Solutions, Inc. [Member]	Advance Chemical Solutions, Inc. [Member]
Business Acquisition [Line Items]	'	'	'	'	'
Cash paid	$2,416,000	$100,000	$1,709,000	$2,400,000	'
Potential cash payment	'	'	'	500,000	'
Contingent consideration measurement period	'	'	'	'3 years	'
Contingent consideration, at fair value	'	'	'	400,000	'
Assets acquired net of liabilities assumed	'	'	'	2,800,000	'
Working capital and fixed assets	'	'	'	400,000	'
Amortizable intangible assets	'	'	'	1,500,000	'
Goodwill amount	'	'	'	900,000	'
Revenue reported by acquired entity for last annual period	'	'	'	'	$4,000,000

Cash_and_Cash_Equivalents_and_2

Cash and Cash Equivalents and Investments (Details) (USD $)	Mar. 30, 2014	Mar. 31, 2013
In Thousands, unless otherwise specified
Cash [Member]	'	'
Assets:	'	'
Cash/Certificates of deposit/Money market securities	$33,486	$28,715
Certificates of deposit [Member]	'	'
Assets:	'	'
Cash/Certificates of deposit/Money market securities	24,437	21,222
Municipal Bonds [Member]	'	'
Assets:	'	'
Cash/Certificates of deposit/Money market securities	5,258	'
Level 1 [Member] | Cash [Member]	'	'
Assets:	'	'
Cash/Certificates of deposit/Money market securities	33,486	28,715
Level 1 [Member] | Certificates of deposit [Member]	'	'
Assets:	'	'
Cash/Certificates of deposit/Money market securities	0	0
Level 1 [Member] | Money market securities [Member]	'	'
Assets:	'	'
Cash/Certificates of deposit/Money market securities	0	'
Level 2 [Member] | Cash [Member]	'	'
Assets:	'	'
Cash/Certificates of deposit/Money market securities	0	0
Level 2 [Member] | Certificates of deposit [Member]	'	'
Assets:	'	'
Cash/Certificates of deposit/Money market securities	24,437	21,222
Level 2 [Member] | Municipal Bonds [Member]	'	'
Assets:	'	'
Cash/Certificates of deposit/Money market securities	5,258	'
Level 3 [Member] | Cash [Member]	'	'
Assets:	'	'
Cash/Certificates of deposit/Money market securities	0	0
Level 3 [Member] | Certificates of deposit [Member]	'	'
Assets:	'	'
Cash/Certificates of deposit/Money market securities	0	0
Level 3 [Member] | Money market securities [Member]	'	'
Assets:	'	'
Cash/Certificates of deposit/Money market securities	$0	'

Cash_and_Cash_Equivalents_and_3

Cash and Cash Equivalents and Investments-Textual (Details) (USD $)	Mar. 30, 2014	Mar. 31, 2013	Mar. 30, 2014	Mar. 30, 2014
In Thousands, unless otherwise specified			Certificates of Deposit and Municipal Bonds [Member]	Level 2 [Member]
				Certificates of deposit [Member]
Cash and Cash Equivalents and Investments (Additional Textual) [Abstract]	'	'	'	'
Maturities period of certificates of deposit minimum	'	'	'	'3 months
Maturities period of certificates of deposit maximum	'	'	'	'3 years
Current asset fair value	$13,843	$15,625	$13,800	'
Noncurrent asset fair value	$15,852	$5,597	$15,900	'

Cash_and_Cash_Equivalents_and_4

Cash and Cash Equivalents and Investments-Available for sale securities (Details) (USD $)	Mar. 30, 2014	Mar. 31, 2013
In Thousands, unless otherwise specified
Amortized Cost Basis, Fiscal Year Maturity [Abstract]	'	'
Within one year	$13,864	$15,615
Between one and three years	15,890	5,590
Total available-for-sale securities	29,754	21,205
Fair Value, Fiscal Year Maturity [Abstract]	'	'
Within one year	13,843	15,625
Between one and three years	15,852	5,597
Total available-for-sale securities	29,695	21,222
Unrealized Gain (loss) [Abstract]	'	'
Within one year	-21	10
Between one and three years	-38	7
Total available-for-sale securities	($59)	$17

Inventories_Details

Inventories (Details) (USD $)	Mar. 30, 2014	Mar. 31, 2013
In Thousands, unless otherwise specified
Summary of Inventories	'	'
Inventory (FIFO basis)	$31,344	$35,281
LIFO reserve	-5,152	-7,073
Net inventory	$26,192	$28,208

InventoriesTextual_Details

Inventories-Textual (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 30, 2014	Mar. 31, 2013
Inventories (Textual) [Abstract]	'	'
Finished goods (LIFO basis)	$28.50	$30.30
Increase (Decrease) LIFO reserve	($1.90)	($0.40)

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets-Goodwill Rollforward (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 30, 2014	Mar. 31, 2013
Goodwill [Roll Forward]	'	'
Goodwill, beginning of period	$6,495	$6,495
Period increase (decrease)	897	0
Goodwill, end of period	$7,392	$6,495

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets-Intangible Assets (Details) (USD $)	Mar. 30, 2014	Mar. 31, 2013
In Thousands, unless otherwise specified
Finite-life intangible assets	'	'
Gross Amount	$10,351	$8,849
Accumulated Amortization	-3,069	-2,398
Net	7,282	6,451
Indefinite-life intangible assets	1,227	1,227
Intangible assets, Gross Carrying Amount	11,578	10,076
Intangible assets, Accumulated Amortization	-3,069	-2,398
Total intangible assets, net	8,509	7,678
Customer relationships [Member]	'	'
Finite-life intangible assets	'	'
Gross Amount	6,913	5,508
Accumulated Amortization	-1,292	-981
Net	5,621	4,527
Trademarks [Member]	'	'
Finite-life intangible assets	'	'
Gross Amount	1,335	1,240
Accumulated Amortization	-421	-274
Net	914	966
Trade secrets [Member]	'	'
Finite-life intangible assets	'	'
Gross Amount	962	962
Accumulated Amortization	-768	-640
Net	194	322
Carrier relationships [Member]	'	'
Finite-life intangible assets	'	'
Gross Amount	800	800
Accumulated Amortization	-257	-177
Net	543	623
Other finite-life intangible assets [Member]	'	'
Finite-life intangible assets	'	'
Gross Amount	341	339
Accumulated Amortization	-331	-326
Net	$10	$13

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets (Details Textual) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Goodwill and Intangible Assets Disclosure [Abstract]	'	'	'
Intangible assets amortization expense	$0.70	$0.60	$0.60

Goodwill_and_Intangible_Assets5

Goodwill and Intangible Assets-Future Amortization (Details) (USD $)	Mar. 30, 2014
In Thousands, unless otherwise specified
Estimated amortization expense [Abstract]	'
2015	$730
2016	616
2017	570
2018	558
2019	$550

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	Mar. 30, 2014	Mar. 31, 2013
In Thousands, unless otherwise specified
Unrealized gain (loss) on:	'	'
Available-for-sale investments	($36)	$11
Post-retirement plan liability adjustments	-8	-117
Accumulated other comprehensive loss	($44)	($106)

Share_Based_CompensationRestri

Share Based Compensation-Restricted and Performance Shares Rollforward (Details) (USD $)	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]	'	'	'
Forfeited or expired, Weighted average grant date fair value (usd per share)	$0	'	'
Performance-Based Restricted Stock [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'	'	'
Beginning Balance, Shares	63,244	'	'
Granted, Shares	28,648	'	'
Vested, Shares	-36,182	'	'
Forfeited or expired, Shares	-3,606	'	'
Ending Balance, Shares	52,104	63,244	'
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)	$34.26	'	'
Granted, Weighted average grant date fair value (usd per share)	$40.25	$33.01	$35.39
Vested, Weighted average grant date fair value (usd per share)	$35.20	'	'
Forfeited or expired, Weighted average grant date fair value (usd per share)	$33.01	'	'
Ending Balance, Weighted average grant date fair value (usd per share)	$36.99	$34.26	'
Restricted Stock Awards [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'	'	'
Beginning Balance, Shares	5,724	'	'
Granted, Shares	6,055	'	'
Vested, Shares	-5,724	'	'
Forfeited or expired, Shares	0	'	'
Ending Balance, Shares	6,055	'	'
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)	$36.65	'	'
Granted, Weighted average grant date fair value (usd per share)	$40.42	'	'
Vested, Weighted average grant date fair value (usd per share)	$36.65	'	'
Forfeited or expired, Weighted average grant date fair value (usd per share)	$0	'	'
Ending Balance, Weighted average grant date fair value (usd per share)	$40.42	'	'

Share_Based_CompensationTextua

Share Based Compensation-Textual (Details) (USD $)	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Tax benefit on share-based compensation plans	($214,000)	$510,000	$698,000
Exercisable shares	9,333	18,666	'
Weighted average exercise price (usd per share)	$19.90	'	'
Outstanding and exercisable options, weighted average remaining life	'5 years 2 months 12 days	'	'
Stock Options [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Vesting period	'3 years	'	'
Compensation expense	'	'	100,000
Exercisable shares	9,333	'	'
Weighted average exercise price (usd per share)	$19.90	'	'
Performance-Based Restricted Stock [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Range of restricted stock to be issued minimum	0	'	'
Range of restricted stock to be issued maximum	39,833	'	'
Vesting period	'2 years	'	'
Weighted average grant date fair value (usd per share)	$40.25	$33.01	$35.39
Compensation expense	800,000	1,100,000	800,000
Equity instruments other than options, vested in period, total fair value	1,300,000	0	300,000
Cost not yet recognized	1,000,000	'	'
Tax benefit on share-based compensation plans	-200,000	500,000	700,000
Restricted Stock Awards [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Weighted average grant date fair value (usd per share)	$40.42	'	'
Compensation expense	200,000	200,000	200,000
Cost not yet recognized	$100,000	'	'
Weighted Average [Member] | Performance-Based Restricted Stock [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Cost not yet recognized, period for recognition	'1 year	'	'
Weighted Average [Member] | Restricted Stock Awards [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Cost not yet recognized, period for recognition	'3 months 18 days	'	'

Share_Based_CompensationStock_

Share Based Compensation-Stock Option Rollforward (Details) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 30, 2014
Shares	'
Outstanding Shares at beginning of period	18,666
Outstanding Shares, Granted	0
Outstanding Shares, Vested	0
Outstanding Shares, Exercised	-9,333
Outstanding Shares, Forfeited or expired	0
Outstanding Shares at end of period	9,333
Exercisable Shares at beginning of period	18,666
Exercisable Shares, Granted	0
Exercisable Shares, Vested	0
Exercisable Shares, Exercised	-9,333
Exercisable Shares at end of period	9,333
Weighted-Average Exercise Price	'
Outstanding Weighted Average Exercise Price, Outstanding at beginning of period (usd per share)	$19.90
Outstanding Weighted-Average Exercise Price, Granted (usd per share)	$0
Outstanding Weighted-Average Exercise Price, Vested (usd per share)	$0
Outstanding Weighted-Average Exercise Price, Exercised (usd per share)	$19.90
Outstanding Weighted-Average Exercise Price, Forfeited or expired (usd per share)	$0
Outstanding Weighted Average Exercise Price, Outstanding at end of period (usd per share)	$19.90
Exercisable Weighted Average Exercise Price, Granted (usd per share)	$0
Exercisable Weighted Average Exercise Price, Vested (usd per share)	$0
Exercisable Weighted Average Exercise Price, Exercised (usd per share)	$19.90
Exercisable Weighted Average Exercise Price, Outstanding at end of period (usd per share)	$19.90
Aggregate Intrinsic Value	'
Outstanding, Aggregate Intrinsic Value, Outstanding at beginning of year	$665
Outstanding, Aggregate Intrinsic Value, Outstanding at end of year	297
Exercisable, Aggregate Intrinsic Value, Outstanding at beginning of year	665
Exercisable, Aggregate Intrinsic Value, Outstanding at end of year	$297

Profit_Sharing_Employee_Stock_2

Profit Sharing, Employee Stock Ownership, Employee Stock Purchase and Pension Plans (Details) (USD $)	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Maximum annual profit sharing per employee (percent)	'	'	15.00%
Subsequent employees hired maximm annual profit sharing percentage compared to employees hired before benchmark date (percent)	50.00%	'	'
ESOP compensation expense, maximum percent of eligible compensation (percent)	5.00%	5.00%	5.00%
Profit sharing contribution expense	$1,231,000	$1,204,000	$2,616,000
ESOP contribution expense	1,231,000	1,203,000	802,000
Plan contribution expense	980,000	1,206,000	0
Total contribution expense	4,199,000	3,902,000	3,855,000
Maximum [Member] | Pension Plan [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Employer matching contribution (percent)	5.00%	5.00%	'
Vertex [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Plan contribution expense	0	0	175,000
Vertex [Member] | Maximum [Member] | Pension Plan [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Employer matching contribution (percent)	'	'	3.00%
Contributions by employer	'	'	200,000
Deferred Profit Sharing [Member] | Maximum [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Contribution percentage of contribution for employees hired before April 1, 2012 (percent)	50.00%	'	'
Maximum annual profit sharing per employee (percent)	5.00%	'	'
Employee Stock Ownership Plan [Member] | Maximum [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Minimum annual profit sharing per employee (percent)	2.50%	'	'
ESOP compensation expense, maximum percent of eligible compensation (percent)	5.00%	'	'
Bargaining Unit Employee Plans [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Defined Contribution Plan, Cost Recognized	500,000	0	0
Bargaining Unit Employee Plans [Member] | Pension Plan [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Maximum annual contribution per employee (percent)	5.00%	'	'
Bargaining Unit Employee Plans [Member] | Deferred Profit Sharing [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Minimum annual profit sharing per employee (percent)	2.50%	'	'
Employee Stock Purchase Plans [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
ESPP compensation expense	$257,000	$289,000	$262,000

Profit_Sharing_Employee_Stock_3

Profit Sharing, Employee Stock Ownership, Employee Stock Purchase and Pension Plans-Multiemployer Pension Plans (Details) (USD $)	12 Months Ended
	Mar. 31, 2013	Apr. 01, 2012	Mar. 30, 2014
			collective_barganing_units
Compensation and Retirement Disclosure [Abstract]	'	'	'
Number of collective bargaining agreements	'	'	2
Multiemployer pension plan withdrawal pre-tax charge	$7,200,000	'	'
Multiemployer pension plan withdrawal post tax charge	4,500,000	'	'
Multiemployer pension plan withdrawal post tax charge per share (usd per share)	$0.43	'	'
Withdrawal liability payment term	'20 years	'	'
Multiemployer pension plan withdrawal aggregate cash payment	9,300,000	'	'
Multiemployer pension plan withdrawal aggregate cash payment per year	467,000	'	'
Multiemployer plan, period contributions	$400,000	$400,000	'

Commitments_and_ContingenciesF

Commitments and Contingencies-Future minimum operating lease payments (Details) (USD $)	Mar. 30, 2014
In Thousands, unless otherwise specified
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]	'
2015	$1,478
2016	1,254
2017	1,111
2018	1,054
2019	1,061
Thereafter	$4,061

Commitments_and_ContingenciesR

Commitments and Contingencies-Rent Expense (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Commitments and Contingencies Disclosure [Abstract]	'	'	'
Minimum rentals	$1,223	$818	$617
Contingent rentals	110	110	102
Total rental expense	$1,333	$928	$719

Commitments_and_ContingenciesT

Commitments and Contingencies-Textual (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Jul. 01, 2012	Mar. 30, 2014
	ICL Performance Products LP (ICL) [Member]	Land [Member]
		lease
Loss Contingencies [Line Items]	'	'
Settlement loss charged to pretax income	$3.20	'
Settlement loss net of tax	$2	'
Settelment loss, net of tax, per diluted share (usd per share)	$0.19	'
Number of leases	'	3

Income_TaxesProvision_of_Incom

Income Taxes-Provision of Income Tax (Details) (USD $)	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Income Tax Examination [Line Items]	'	'	'
Federal b current	$7,612,000	$8,967,000	$8,632,000
State b current	1,255,000	2,417,000	2,546,000
Total current	8,867,000	11,384,000	11,178,000
Federal b deferred	676,000	-2,466,000	2,796,000
State b deferred	424,000	-600,000	316,000
Total deferred	1,100,000	-3,066,000	3,112,000
Total provision	9,967,000	8,318,000	14,290,000
State and Local Jurisdiction [Member]	'	'	'
Income Tax Examination [Line Items]	'	'	'
Decrease resulting from current period tax positions	400,000	'	'
U.S. Federal tax return [Member]	'	'	'
Income Tax Examination [Line Items]	'	'	'
Amended Federal tax return, increase in benefits	'	$800,000	'

Income_TaxesEffective_Income_T

Income Taxes-Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Income Tax Disclosure [Abstract]	'	'	'
Statutory federal income tax (percent)	35.00%	35.00%	35.00%
State income taxes, net of federal deduction (percent)	3.20%	4.90%	5.00%
ESOP dividend deduction on allocated shares (percent)	-0.80%	-1.00%	-0.70%
Domestic production deduction (percent)	-2.10%	-2.70%	-0.90%
Impact of amended tax returns (percent)	0.00%	-3.30%	0.00%
Other b net (percent)	0.20%	-0.20%	0.20%
Total (percent)	35.50%	32.70%	38.60%

Income_Taxes_Income_TaxesDefer

Income Taxes Income Taxes-Deferred Tax Assets (Details) (USD $)	Mar. 30, 2014	Mar. 31, 2013
In Thousands, unless otherwise specified
Deferred tax assets:	'	'
Trade receivables	$191	$188
Stock compensation accruals	1,031	776
Pension withdrawal liability	2,872	2,902
Other	842	1,100
Total deferred tax assets	4,936	4,966
Deferred tax liabilities:	'	'
Inventories	-3,618	-3,319
Prepaid	-727	-525
Excess of tax over book depreciation	-13,221	-11,385
Amortization of intangibles	-456	-354
Total deferred tax liabilities	-18,022	-15,583
Net deferred tax liabilities	($13,086)	($10,617)

Segment_Information_Details

Segment Information (Details) (USD $)

3 Months Ended

12 Months Ended

Mar. 30, 2014

Dec. 29, 2013

Sep. 29, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 30, 2012

Sep. 30, 2012

Jul. 01, 2012

Mar. 30, 2014

Mar. 31, 2013

Apr. 01, 2012

Summary of Segment Information

'

'

'

'

'

'

'

'

'

'

'

Sales

$85,223,000

$81,697,000

$86,599,000

$94,744,000

$87,601,000

$85,527,000

$87,160,000

$90,099,000

$348,263,000

$350,387,000

$343,834,000

Gross profit

14,249,000

13,550,000

16,570,000

17,231,000

14,307,000

8,126,000

19,196,000

15,307,000

61,600,000

56,936,000

65,868,000

Selling, general, and administrative expenses

8,080,000

8,167,000

8,293,000

8,970,000

8,307,000

7,617,000

7,455,000

8,227,000

33,510,000

31,606,000

30,759,000

Operating income

6,169,000

5,383,000

8,277,000

8,261,000

6,000,000

509,000

11,741,000

7,080,000

28,090,000

25,330,000

35,109,000

Identifiable assets

170,507,000

'

'

'

169,275,000

[1]

'

'

'

170,507,000

169,275,000

[1]

153,325,000

[1]

Unallocated Amount to Segment [Member]

'

'

'

'

'

'

'

'

'

'

'

Summary of Segment Information

'

'

'

'

'

'

'

'

'

'

'

Identifiable assets

66,700,000

'

'

'

52,900,000

'

'

'

66,700,000

52,900,000

48,000,000

Industrial [Member]

'

'

'

'

'

'

'

'

'

'

'

Summary of Segment Information

'

'

'

'

'

'

'

'

'

'

'

Sales

'

'

'

'

'

'

'

'

244,888,000

248,556,000

251,451,000

Gross profit

'

'

'

'

'

'

'

'

32,041,000

28,878,000

40,357,000

Selling, general, and administrative expenses

'

'

'

'

'

'

'

'

19,781,000

19,923,000

19,805,000

Operating income

'

'

'

'

'

'

'

'

12,260,000

8,955,000

20,552,000

Identifiable assets

141,506,000

'

'

'

143,827,000

[1]

'

'

'

141,506,000

143,827,000

[1]

129,782,000

[1]

Water Treatment [Member]

'

'

'

'

'

'

'

'

'

'

'

Summary of Segment Information

'

'

'

'

'

'

'

'

'

'

'

Sales

'

'

'

'

'

'

'

'

103,375,000

101,831,000

92,383,000

Gross profit

'

'

'

'

'

'

'

'

29,559,000

28,058,000

25,511,000

Selling, general, and administrative expenses

'

'

'

'

'

'

'

'

13,729,000

11,683,000

10,954,000

Operating income

'

'

'

'

'

'

'

'

15,830,000

16,375,000

14,557,000

Identifiable assets

29,001,000

'

'

'

25,448,000

[1]

'

'

'

29,001,000

25,448,000

[1]

23,543,000

[1]

Pharmaceutical [Member]

'

'

'

'

'

'

'

'

'

'

'

Summary of Segment Information

'

'

'

'

'

'

'

'

'

'

'

Assets associated with the discontinued operations

$0

'

'

'

'

'

'

'

$0

'

$1,200,000

[1]

Unallocated assets consisting primarily of cash and cash equivalents, investments and prepaid expenses were $66.7 million at MarchB 30, 2014, $52.9 million at MarchB 31, 2013 and $48.0 million at AprilB 1, 2012. Additionally, assets associated with the discontinued operations of the Pharmaceutical segment were zero at MarchB 30, 2014 and MarchB 31, 2013, and $1.2 million at April 1, 2012.

Segment_InformationTextual_Det

Segment Information-Textual (Details) (USD $)	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
	Customer
	Segment
Segment Reporting Information [Line Items]	'	'	'
Number of reportable segments (segment)	2	'	'
Multiemployer pension plan withdrawal charge	$0	$7,210,000	$0
Number of customers representing 10% or more of revenue (customers)	0	'	'
Industrial [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Multiemployer pension plan withdrawal charge	'	7,200,000	'
Legal settlement	'	3,200,000	'
Pre-tax charges to gross profit	'	$10,400,000	'

Selected_Quarterly_Financial_D2

Selected Quarterly Financial Data (Unaudited) (Details) (USD $)	3 Months Ended								12 Months Ended
	Mar. 30, 2014	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 30, 2012	Sep. 30, 2012	Jul. 01, 2012	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Sales	$85,223,000	$81,697,000	$86,599,000	$94,744,000	$87,601,000	$85,527,000	$87,160,000	$90,099,000	$348,263,000	$350,387,000	$343,834,000
Gross profit	14,249,000	13,550,000	16,570,000	17,231,000	14,307,000	8,126,000	19,196,000	15,307,000	61,600,000	56,936,000	65,868,000
Selling, general, and administrative expenses	8,080,000	8,167,000	8,293,000	8,970,000	8,307,000	7,617,000	7,455,000	8,227,000	33,510,000	31,606,000	30,759,000
Operating income	6,169,000	5,383,000	8,277,000	8,261,000	6,000,000	509,000	11,741,000	7,080,000	28,090,000	25,330,000	35,109,000
Income from continuing operations, net of tax	4,295,000	3,480,000	5,207,000	5,112,000	4,165,000	1,348,000	7,230,000	4,365,000	18,094,000	17,108,000	21,628,000
Income from discontinued operations, net of tax	0	0	0	0	0	0	0	18,000	0	18,000	1,057,000
Net income	4,295,000	3,480,000	5,207,000	5,112,000	4,165,000	1,348,000	7,230,000	4,383,000	18,094,000	17,126,000	22,685,000
Basic earnings per share (usd per share)	$0.41	$0.33	$0.49	$0.49	$0.40	$0.13	$0.69	$0.42	$1.72	$1.64	$2.19
Diluted earnings per share (usd per share)	$0.40	$0.33	$0.49	$0.48	$0.39	$0.13	$0.69	$0.42	$1.71	$1.62	$2.18
Multiemployer pension plan withdrawal charge	'	'	'	'	'	'	'	'	0	7,210,000	0
Industrial [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Sales	'	'	'	'	'	'	'	'	244,888,000	248,556,000	251,451,000
Gross profit	'	'	'	'	'	'	'	'	32,041,000	28,878,000	40,357,000
Selling, general, and administrative expenses	'	'	'	'	'	'	'	'	19,781,000	19,923,000	19,805,000
Operating income	'	'	'	'	'	'	'	'	12,260,000	8,955,000	20,552,000
Legal settlement	'	'	'	'	'	'	'	'	'	3,200,000	'
Multiemployer pension plan withdrawal charge	'	'	'	'	'	'	'	'	'	$7,200,000	'