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Retirement Plans and Postretirement Costs (Details Textual) (USD $) | 12 Months Ended |  | 12 Months Ended |  |
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Jun. 28, 2015 | Jun. 29, 2014 | Jun. 30, 2013 | Jun. 29, 2014 Public equity | Jun. 30, 2013 Supplemental Employee Retirement Plan, Defined Benefit | Jun. 29, 2014 Supplemental Employee Retirement Plan, Defined Benefit | Jun. 29, 2014 Fixed income | Jun. 29, 2014 Qualified Pension Plan | Jun. 29, 2014 Postretirement Benefits | Jun. 30, 2013 Postretirement Benefits | Jul. 01, 2012 Postretirement Benefits
Disclosure Pension And Other Postretirement Benefits Details Textual [Line Items] |  |  |  |  |  |  |  |  |  |  |
Date the Board of Directors approved a resolution to terminate the qualified retirement plan |  | Apr. 02, 2014 |  |  |  |  |  |  |  |  |
Qualified Retirement Plan participants' vesting percentage as of the final termination date of the plan |  | 100.00% |  |  |  |  |  |  |  |  |
SERP benefit obligation cash settlement |  |  |  |  | $ 5,800,000 |  |  |  |  |  |
Loss on settlement of pension obligation |  |  | (2,144,000) |  | 2,100,000 |  |  |  |  |  |
Rabbi Trust Assets - SERP |  | 2,200,000 | 1,500,000 |  |  |  |  |  |  |  |
Projected benefit obligation |  |  |  |  | 1,464,000 | 1,872,000 |  |  | 2,929,000 | 3,540,000 | 4,475,000
Percentage of participant's base salary received as Supplemental Retirement Benefits |  |  |  |  | 8.00% |  |  |  |  |  |
Postretirement plan annual benefit limit for future eligible retirees |  | 4,000 |  |  |  |  |  |  |  |  |
Other postretirement benefits maximum benefit period |  | 5 years |  |  |  |  |  |  |  |  |
Health care cost trend rate for next fiscal year |  | 7.50% |  |  |  |  |  |  |  |  |
Ultimate health care cost trend rate |  | 5.00% |  |  |  |  |  |  |  |  |
Net Periodic Benefit Cost, Expected return on plan assets | 6.50% | 7.50% |  |  |  |  |  |  |  |  |
Return applied to target allocation in determining expected long term rate of return |  | 6.50% |  | 10.00% |  |  | 3.00% |  |  |  |
Percentage target asset allocation |  | 100.00% |  | 50.00% |  |  | 50.00% |  |  |  |
Actual Historical Annualized Returns Using Target Allocation - 5 Years |  | 10.44% |  |  |  |  |  |  |  |  |
Actual Historical Annualized Returns Using Target Allocation - 10 Years |  | 6.37% |  |  |  |  |  |  |  |  |
Actual Historical Annualized Returns Using Target Allocation - 15 Years |  | 5.64% |  |  |  |  |  |  |  |  |
Actual Historical Annualized Returns Using Target Allocation - 20 Years |  | 7.63% |  |  |  |  |  |  |  |  |
Actual Historical Annualized Returns Using Target Allocation - 25 Years |  | 7.97% |  |  |  |  |  |  |  |  |
Actual Historical Annualized Returns Using Target Allocation - 30 Years |  | 9.54% |  |  |  |  |  |  |  |  |
Expected employer contributions during fiscal 2015 |  |  |  |  |  |  |  | $ 3,000,000 | $ 706,000 |  |
Percent of each dollar of eligible employee contributions matched by employer |  | 100.00% |  |  |  |  |  |  |  |  |
Employer matching contribution to employee up to participant's eligible contribution |  | 5.00% |  |  |  |  |  |  |  |  |

X
- Definition Annual benefit accrual percentage of a participants' base salary and cash bonus under the Supplement Executive Retirement Plan. + References No definition available. + Details
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- Definition The date the company's Board of Directors approved a resolution to terminate the qualified retirement plan. + References No definition available. + Details
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- Definition This percentage represents the actual historical annualized return over a 15 year period using a target allocation of 70 percent public equity and 30 percent fixed income securities. + References No definition available. + Details
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- Definition This percentage represents the actual historical annualized return over a five year period using a target allocation of 70 percent public equity and 30 percent fixed income securities. + References No definition available. + Details
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- Definition This percentage represents the actual historical annualized return over a ten year period using a target allocation of 70 percent public equity and 30 percent fixed income securities. + References No definition available. + Details
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- Definition This percentage represents the actual historical annualized return over a 30 year period using a target allocation of 70 percent public equity and 30 percent fixed income securities. + References No definition available. + Details
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- Definition This percentage represents the actual historical annualized return over a 25 year period using a target allocation of 70 percent public equity and 30 percent fixed income securities. + References No definition available. + Details
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- Definition This percentage represents the actual historical annualized return over a 20 year period using a target allocation of 70 percent public equity and 30 percent fixed income securities. + References No definition available. + Details
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- Definition Under the defined contribution plan, this percentage represents the percent of annual employee compensation which is eligible for an employer match. + References No definition available. + Details
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- Details
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- Definition The maximum annual benefit amount available to each retiree for postretirement health benefits under the other postretirement defined benefit plan. + References No definition available. + Details
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- Definition The maximum benefit period, in years, available to each retiree for postretirement health benefits under the other postretirement defined benefit plan. + References No definition available. + Details
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- Definition Under the defined contribution plan, this percentage represents the employer match percentage applied to eligible employee contributions made to the plan in determination of the dollar amount of the employer match; this amount is subject to a limit based on the percent of annual employee compensation which is eligible for an employer match. + References No definition available. + Details
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- Definition In the determination of the defined benefit plan assumption as to the rate of return on plan assets used calculating period end benefit obligation liability; this percentage represents the estimated annualized return for the noted group of securities. + References No definition available. + Details
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- Definition Amount of cash paid related to a settlement of a Supplemental Employee Retirement Plan Benefit Liability. + References No definition available. + Details
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- Definition The total amount of cash and securities held by third party trustees in a rabbi trust for the payment of supplemental employee retirement benefits. + References No definition available. + Details
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- Definition The vesting percentage of accrued benefits for all retirement plan participants as of the final plan termination date under a plan amendment. + References No definition available. + Details
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- Definition An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Glossary Expected Long-Term Rate of Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512013 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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- Definition 1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Projected Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6522206 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Accumulated Postretirement Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6503904 + Details
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- Definition The assumed health care cost trend rate for the next year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (l) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Health Care Cost Trend Rate -URI http://asc.fasb.org/extlink&oid=6514820 + Details
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- Definition Amount of net gain (loss) recognized in net periodic benefit cost as a result of an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 15 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7577095&loc=d3e8001-114927 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(7) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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- Definition Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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- Definition Target allocation of investments of this type to total plan assets presented on a weighted average basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(i) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2446-114920 + Details
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- Definition The ultimate trend rate for health care costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (l) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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