Income Taxes (Reconciliation between Federal statutory tax rate and effective tax rate reflected in accompanying financial statements) (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 26, 2016	Mar. 28, 2015	Mar. 29, 2014
Reconciliation between Federal statutory tax rate and effective tax rate reflected in accompanying financial statements
Federal income tax based on statutory tax rate applied to income before taxes	$ 36,897	$ 34,774	$ 30,287
State income tax, net of federal income tax benefit	2,306	2,170	2,097
Other	(587)	612	(307)
Income tax expense, total	$ 38,616	$ 37,556	$ 32,077
Federal income tax based on statutory tax rate applied to income before taxes, percentage	35.00%	35.00%	35.00%
State income tax, net of federal income tax benefit, percentage	2.20%	2.20%	2.40%
Other, percentage	(0.60%)	0.60%	(0.30%)
Income tax expense, percentage	36.60%	37.80%	37.10%

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319

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-Name Accounting Standards Codification
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.

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