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Employee Retirement and Profit Sharing Plans (Tables) | 12 Months Ended
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Mar. 31, 2012
Employee Retirement And Profit Sharing Plans [Abstract] |
Funded status of plan |
|  | Fiscal March |
|  | 2012 |  |  | 2011 |
|  | (Dollars in thousands) |
Change in Plan Assets: |  |  |  |  |  |  |  |
Fair value of plan assets at beginning of year |  | $ | 17,274 |  |  | $ | 15,361 |
Actual return on plan assets |  |  | 612 |  |  |  | 2,444 |
Employer contribution |  |  | 0 |  |  |  | 0 |
Benefits paid |  |  | (542 | ) |  |  | (531 | )
Fair value of plan assets at end of year |  |  | 17,344 |  |  |  | 17,274 |
Change in Projected Benefit Obligation: |  |  |  |  |  |  |  |
Benefit obligation at beginning of year |  |  | 14,551 |  |  |  | 13,473 |
Interest cost |  |  | 809 |  |  |  | 814 |
Actuarial loss |  |  | 2,682 |  |  |  | 795 |
Benefits paid |  |  | (542 | ) |  |  | (531 | )
Benefit obligation at end of year |  |  | 17,500 |  |  |  | 14,551 |
Funded status of plan |  | $ | (156 | ) |  | $ | 2,723 |
Amounts recognized in accumulated other comprehensive loss |
|  | Year Ended Fiscal March |
|  | 2012 |  |  | 2011 |
|  | (Dollars in thousands) |
Unamortized transition obligation |  | $ | 0 |  |  | $ | 0 |
Unamortized prior service cost |  |  | 0 |  |  |  | 0 |
Unamortized net loss |  |  | 5,733 |  |  |  | 2,545 |
Total |  | $ | 5,733 |  |  | $ | 2,545 |
Changes in plan assets and benefit obligations recognized in other comprehensive income |
|  | Year Ended Fiscal March |
|  | 2012 |  |  | 2011 |
|  | (Dollars in thousands) |
Net transition obligation |  | $ | 0 |  |  | $ | 0 |
Prior service cost |  |  | 0 |  |  |  | 0 |
Net actuarial (loss) gain |  |  | (3,188 | ) |  |  | 756 |
Total |  | $ | (3,188 | ) |  | $ | 756 |
Components of pension (income) expense |
|  | Year Ended Fiscal March |
|  | 2012 |  |  | 2011 |  |  | 2010 |
|  | (Dollars in thousands) |
Interest cost on projected benefit obligation |  | $ | 809 |  |  | $ | 814 |  |  | $ | 769 |
Expected return on plan assets |  |  | (1,189 | ) |  |  | (1,094 | ) |  |  | (824 | )
Amortization of unrecognized actuarial loss |  |  | 71 |  |  |  | 201 |  |  |  | 384 |
Net pension (income) expense |  | $ | (309 | ) |  | $ | (79 | ) |  | $ | 329 |
Weighted average assumptions used to determine benefit obligations |
|  | Year Ended Fiscal March |
|  | 2012 |  |  | 2011 |
Discount rate |  |  | 4.49 | % |  |  | 5.75 | %
Weighted average assumptions used to determine net periodic pension costs |
|  | Year Ended Fiscal March |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Discount rate |  |  | 5.75 | % |  |  | 6.14 | % |  |  | 7.36 | %
Expected long-term return on assets |  |  | 7.00 | % |  |  | 7.25 | % |  |  | 7.25 | %
Company's asset allocations, by asset category |
|  | March 31, 2012 |  |  | March 26, 2011 |
Cash and cash equivalents |  |  | 3.2 | % |  |  | 2.5 | %
Fixed income |  |  | 36.7 | % |  |  | 32.2 | %
Equity securities |  |  | 60.1 | % |  |  | 65.3 | %
Total |  |  | 100.0 | % |  |  | 100.0 | %
Fair value measurement information for the Company's major categories of defined benefit plan assets |
|  | Fair Value Measurements at March 31, 2012 Using
|  | Total |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3)
|  | (Dollars in thousands)
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. companies |  | $ | 7,450 |  |  | $ | 7,450 |  |  |  |  |  |  |
International companies |  |  | 2,972 |  |  |  | 2,972 |  |  |  |  |  |  |
Fixed income: |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. corporate bonds |  |  | 6,058 |  |  |  |  |  |  | $ | 6,058 |  |  |
International bonds |  |  | 309 |  |  |  |  |  |  |  | 309 |  |  |
Cash equivalents |  |  | 555 |  |  |  |  |  |  |  | 555 |  |  |
Total |  | $ | 17,344 |  |  | $ | 10,422 |  |  | $ | 6,922 |  |  |
|  | Fair Value Measurements at March 26, 2011 Using
|  | Total |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3)
|  | (Dollars in thousands)
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. companies |  | $ | 8,235 |  |  | $ | 8,235 |  |  |  |  |  |  |
International companies |  |  | 3,053 |  |  |  | 3,053 |  |  |  |  |  |  |
Fixed income: |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasuries/agencies |  |  | 947 |  |  |  |  |  |  | $ | 947 |  |  |
U.S. corporate bonds |  |  | 4,294 |  |  |  |  |  |  |  | 4,294 |  |  |
International bonds |  |  | 315 |  |  |  |  |  |  |  | 315 |  |  |
Cash equivalents |  |  | 430 |  |  |  |  |  |  |  | 430 |  |  |
Total |  | $ | 17,274 |  |  | $ | 11,288 |  |  | $ | 5,986 |  |  |
Pension benefit payments |
|  | Year Ended Fiscal March |
|  | (Dollars in thousands) |
2013 |  | $ | 589 |
2014 |  |  | 584 |
2015 |  |  | 604 |
2016 |  |  | 644 |
2017 |  |  | 685 |
2018 - 2022 |  |  | 4,202 |

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- Definition Tabular disclosure of the assumptions used to determine for pension plans the net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + References No definition available. + Details
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- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (d)(5) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the net gain (loss) and net prior service cost or credit recognized in other comprehensive income (loss) for the period for pension plans and/or other employee benefit plans, and reclassification adjustments of other comprehensive income (loss) for the period, as those amounts, including amortization of the net transition asset or obligation, are recognized as components of net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (i) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the reconciliation of beginning and ending balances of the fair value of plan assets of pension plans and/or other employee benefit plans showing separately, if applicable, the effects during the period attributable to each of the following: actual return on plan assets, foreign currency exchange rate changes, contributions by the employer, contributions by plan participants, benefits paid, business combinations, divestitures, and settlements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (b) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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