Income Taxes Income Taxes-Deferred Tax Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 29, 2015	Mar. 30, 2014
Deferred tax assets:
Trade receivables	$ 178	$ 191
Stock compensation accruals	949	1,031
Pension withdrawal liability	2,755	2,872
Other	811	842
Total deferred tax assets	4,693us-gaap_DeferredTaxAssetsGross	4,936us-gaap_DeferredTaxAssetsGross
Deferred tax liabilities:
Inventories	(3,307)	(3,618)
Prepaid	(689)	(727)
Excess of tax over book depreciation	(12,699)	(13,221)
Amortization of intangibles	(674)	(456)
Total deferred tax liabilities	(17,369)us-gaap_DeferredIncomeTaxLiabilities	(18,022)us-gaap_DeferredIncomeTaxLiabilities
Net deferred tax liabilities	$ (12,676)us-gaap_DeferredTaxLiabilities	$ (13,086)us-gaap_DeferredTaxLiabilities

Amount of deferred tax liability attributable to taxable temporary differences.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from pension benefits.

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Amount of deferred tax consequences attributable to taxable temporary differences derived from inventory.

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Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.

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Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

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