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Supplemental Disclosure of Cash Flow Information (Details Textual) (USD $) | 12 Months Ended
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Mar. 30, 2013 | Mar. 31, 2012 | Mar. 26, 2011
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |  |  |
Other comprehensive income in connection with interest rate swap contracts |  |  | $ 190,000 | [1]
Supplemental Disclosure Of Cash Flow Information (Textual) [Abstract] |  |  |  |
Capital leases - property, plant and equipment | 2,567,000 | 1,400,000 | 1,065,000 |
Capital leases - long-term debt | 2,567,000 | 1,400,000 | 1,065,000 |
Other non current assets pension liability adjustment |  | (3,033,000) |  |
Other comprehensive income pension liability adjustment |  | (1,977,000) |  |
Long term deferred taxes pension liability adjustment |  | (1,212,000) |  |
Other long term liabilities pension liability adjustment |  | 156,000 |  |
Change in current liabilities related to tax benefit from exercise of stock options | (2,764,000) | (5,314,000) | (3,538,000) |
Tax benefit from exercise of stock options | 2,764,000 | 5,314,000 | 3,531,000 |
Long-term deferred taxes in connection with accounting for income tax benefits related to the exercise of stock options |  |  | 7,000 |
Current liabilities, exercise of stock options | 601,000 | 5,485,000 | 1,120,000 |
Common stock issued exercise of stock options | 2,000 | 6,000 | 1,000 |
Paid in capital exercise of stock options | 2,968,000 | 8,685,000 | 606,000 |
Treasury stock exercise of stock options | 3,571,000 | 14,176,000 | 1,727,000 |
Deferred income taxes-financing obligation-inception | 1,164,000 |  |  |
Property, plant and equiptment-financing obligation-inception | 200,000 |  |  |
Goodwill-financing obligation-inception | 1,899,000 |  |  |
Capital lease and financing obligation-financing obligation-inception | 629,000 |  |  |
Other long-term liabilities-financing obligation-inception | 2,567,000 |  |  |
Intangible assets-financing obligations-inception | $ (67,000) |  |  |
[1] | The balance related to the derivatives contracts was $(190) at March 27, 2010.

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