Nature of Business and Significant Accounting Policies (Policies)	12 Months Ended
Mar. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [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 31, 2013 (“fiscal 2013”) and April 1, 2012 (“fiscal 2012”) were 52-week years. The fiscal year ended April 3, 2011 (“fiscal 2011”) was a 53-week year. The fiscal year ending on March 30, 2014 (“fiscal 2014”) will be a 52-week year.
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. 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, money market accounts and certificates of deposit) 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 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 certificates of deposit 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 being determined using the last-in, first-out (“LIFO”) method. The amount of inventory valued using the first-in, first-out (“FIFO”) method represents approximately 14% of the total FIFO inventory balance at March 31, 2013.
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 2013, 2012 or 2011.
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. The impairment test is performed using a two-step process. In the first step, the fair value of the reporting unit is compared with the carrying amount of the reporting unit, including goodwill. If the estimated fair value is less than the carrying amount of the reporting unit, an indication that goodwill impairment exists and a second step must be completed in order to determine the amount of the goodwill impairment, if any, which should be recorded. In the second step, an impairment loss would be recognized for any excess of the carrying amount of the reporting unit's goodwill over the implied fair value of that goodwill. The implied fair value of goodwill is determined by allocating the fair value of the reporting unit in a manner similar to a purchase price allocation. The fair value of the reporting unit is determined using a discounted cash flow analysis. Projecting discounted future cash flows requires us to make significant estimates regarding future revenues and expenses, projected capital expenditures, changes in working capital and the appropriate discount rate. The projections also take into account several factors including current and estimated economic trends and outlook, costs of raw materials, consideration of our market capitalization in comparison to the estimated fair values of our reporting units determined using discounted cash flow analyses and other factors which are beyond our control. 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 14 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 comparison of the fair value of the intangible asset with its carrying amount. We completed step one of our annual goodwill impairment evaluation, along with an impairment test of infinite-life intangible assets, during the fourth quarter of fiscal 2013 and determined that our reporting units' fair value substantially exceeded their carrying value. Accordingly, step two of the impairment analysis was not required. Impairment tests were also completed in the fourth quarters of fiscal 2012 and 2011, 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. These differences result in deferred tax assets and liabilities, which are recorded on the balance sheet. These 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). The estimated fair value of each option is calculated using the Black-Scholes option-pricing model. 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.
Recently Issued Accounting Pronouncements	Comprehensive Income - In June 2011, the FASB amended its accounting guidance to increase the prominence of items reported in other comprehensive income (OCI). The guidance requires the presentation of the components of net income, the components of OCI and total comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The guidance was effective for us beginning with our fiscal 2013 financial statements. We have elected presentation of two separate but consecutive statements. Intangibles - Goodwill and Other - In September 2011, the FASB issued amended guidance on goodwill impairment testing to allow companies the alternative to first assess qualitative factors to determine whether it is necessary to perform the two-step quantitative goodwill impairment test. If, as a result of the qualitative assessment, an entity determines that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, the quantitative impairment test is required. Otherwise, no further testing is required. The amendment was effective for us beginning in fiscal 2013.

Nature of Business and Significant Accounting Policies (Policies)

12 Months Ended

Mar. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Our fiscal year is a 52/53-week year ending on the Sunday closest to March 31. Our fiscal years ended March 31, 2013 (“fiscal 2013”) and April 1, 2012 (“fiscal 2012”) were 52-week years. The fiscal year ended April 3, 2011 (“fiscal 2011”) was a 53-week year. The fiscal year ending on March 30, 2014 (“fiscal 2014”) will be a 52-week year.

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. 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, money market accounts and certificates of deposit) 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 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 certificates of deposit 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 being determined using the last-in, first-out (“LIFO”) method. The amount of inventory valued using the first-in, first-out (“FIFO”) method represents approximately 14% of the total FIFO inventory balance at March 31, 2013.

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 2013, 2012 or 2011.

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. The impairment test is performed using a two-step process. In the first step, the fair value of the reporting unit is compared with the carrying amount of the reporting unit, including goodwill. If the estimated fair value is less than the carrying amount of the reporting unit, an indication that goodwill impairment exists and a second step must be completed in order to determine the amount of the goodwill impairment, if any, which should be recorded. In the second step, an impairment loss would be recognized for any excess of the carrying amount of the reporting unit's goodwill over the implied fair value of that goodwill. The implied fair value of goodwill is determined by allocating the fair value of the reporting unit in a manner similar to a purchase price allocation. The fair value of the reporting unit is determined using a discounted cash flow analysis. Projecting discounted future cash flows requires us to make significant estimates regarding future revenues and expenses, projected capital expenditures, changes in working capital and the appropriate discount rate. The projections also take into account several factors including current and estimated economic trends and outlook, costs of raw materials, consideration of our market capitalization in comparison to the estimated fair values of our reporting units determined using discounted cash flow analyses and other factors which are beyond our control.

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 14 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 comparison of the fair value of the intangible asset with its carrying amount.

We completed step one of our annual goodwill impairment evaluation, along with an impairment test of infinite-life intangible assets, during the fourth quarter of fiscal 2013 and determined that our reporting units' fair value substantially exceeded their carrying value. Accordingly, step two of the impairment analysis was not required. Impairment tests were also completed in the fourth quarters of fiscal 2012 and 2011, 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. These differences result in deferred tax assets and liabilities, which are recorded on the balance sheet. These 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). The estimated fair value of each option is calculated using the Black-Scholes option-pricing model. 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.

Recently Issued Accounting Pronouncements

Comprehensive Income - In June 2011, the FASB amended its accounting guidance to increase the prominence of items reported in other comprehensive income (OCI). The guidance requires the presentation of the components of net income, the components of OCI and total comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The guidance was effective for us beginning with our fiscal 2013 financial statements. We have elected presentation of two separate but consecutive statements.

Intangibles - Goodwill and Other - In September 2011, the FASB issued amended guidance on goodwill impairment testing to allow companies the alternative to first assess qualitative factors to determine whether it is necessary to perform the two-step quantitative goodwill impairment test. If, as a result of the qualitative assessment, an entity determines that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, the quantitative impairment test is required. Otherwise, no further testing is required. The amendment was effective for us beginning in fiscal 2013.