XML 47 R37.htm IDEA: XBRL DOCUMENT
v3.19.1

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