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RECENT ACCOUNTING PRONOUNCEMENTS (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015
RECENT ACCOUNTING PRONOUNCEMENTS [Abstract]
Amount of residential real estate loans foreclosed	$ 6.7mgyr_ForclosedLoans
Amount of consumer mortgage loans collateralized by residential real estate property in the process of foreclosure	$ 3.8mgyr_LoansInProcessOfForeclosure

X

- Definition

Represents number of loans foreclosed.

+ References

No definition available.

+ Details

Name:	mgyr_ForclosedLoans
Namespace Prefix:	mgyr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Represents number of loans are in the process of foreclosures.

+ References

No definition available.

+ Details

Name:	mgyr_LoansInProcessOfForeclosure
Namespace Prefix:	mgyr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration