RESTRUCTURING COSTS (Details) (USD $)	6 Months Ended	12 Months Ended
Mar. 28, 2015	Sep. 24, 2011
Remaining accrual balances for restructuring costs
Accrual at the beginning of the period	$ 2,779,000us-gaap_RestructuringReserve
Costs Paid or Settled	(247,000)us-gaap_PaymentsForRestructuring
Accrual at the end of the period	2,532,000us-gaap_RestructuringReserve
Employee severance, post-retirement and other benefit costs
Remaining accrual balances for restructuring costs
Accrual at the beginning of the period	88,000
Costs Paid or Settled	(24,000)
Accrual at the end of the period	64,000
Early withdrawal from multi-employer pension plan
Remaining accrual balances for restructuring costs
Accrual at the beginning of the period	1,926,000
Costs Paid or Settled	(38,000)
Accrual at the end of the period	1,888,000
Lease termination, facility closure and other costs
Remaining accrual balances for restructuring costs
Accrual at the beginning of the period	765,000
Costs Paid or Settled	(185,000)
Accrual at the end of the period	580,000
Book Manufacturing
Restructuring costs
Pre-tax charge		7,700,000
Expected payment	2,400,000
Restructuring payments included in Other current liabilities	800,000
Restructuring payments included in Other liabilities	1,700,000
Book Manufacturing \| Employee severance, post-retirement and other benefit costs
Restructuring costs
Pre-tax charge		2,300,000
Book Manufacturing \| Early withdrawal from multi-employer pension plan
Restructuring costs
Pre-tax charge		2,100,000
Period over which remaining payments for restructuring costs will be made	17 years
Book Manufacturing \| Lease termination, facility closure and other costs
Restructuring costs
Pre-tax charge		$ 3,300,000
Period over which remaining payments for restructuring costs will be made	1 year

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- Definition

Amount expected to be paid in cash in future periods to fully or partially settle a specified, previously accrued type of restructuring cost.

+ References

No definition available.

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Topic 420

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b))

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-Number Topic 5

-Section P

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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 4

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-Publisher FASB

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-Section 50

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Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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