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Income Taxes (Details Textual)	3 Months Ended
	Mar. 28, 2019	Mar. 29, 2018
Income Taxes [Line Items]
Effective Income Tax Rate	0.70%	25.80%

X

- Definition

The effective income tax rate of the company during the period.

+ References

No definition available.

+ Details

Name:	mcs_EffectiveIncomeTaxRate
Namespace Prefix:	mcs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	mcs_IncomeTaxesLineItems
Namespace Prefix:	mcs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration