General (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Feb. 26, 2015	Feb. 27, 2014	Feb. 26, 2015	Feb. 27, 2014
Service cost	$ 174us-gaap_DefinedBenefitPlanServiceCost	$ 176us-gaap_DefinedBenefitPlanServiceCost	$ 523us-gaap_DefinedBenefitPlanServiceCost	$ 527us-gaap_DefinedBenefitPlanServiceCost
Interest cost	311us-gaap_DefinedBenefitPlanInterestCost	293us-gaap_DefinedBenefitPlanInterestCost	933us-gaap_DefinedBenefitPlanInterestCost	880us-gaap_DefinedBenefitPlanInterestCost
Net amortization of prior service cost and actuarial loss	82	67	244	201
Net periodic pension cost	$ 567	$ 536	$ 1,700	$ 1,608

The amount of the prior service cost in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation and actuarial losses.

No definition available.

+ Details

Name:	mcs_DefinedBenefitPlanNetAmortizationOfPriorServiceCostAndActuarialLoss
Namespace Prefix:	mcs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanInterestCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ 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 (h)(1)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Service Cost (Component of Net Periodic Pension Cost)

-URI http://asc.fasb.org/extlink&oid=6525008

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanServiceCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration