XML 58 R47.htm IDEA: XBRL DOCUMENT
v3.8.0.1

IMPAIRMENT OF INVESTMENT SECURITIES (Schedule of Gross Unrealized Losses and Fair Value for Both Available For Sale and Held To Maturity Securities) (Details) $ in Thousands | Dec. 31, 2017 USD ($) N | Sep. 30, 2017 USD ($) N
--- | --- | ---
Available For Sale and Held To Maturity Securities |  |
Number of Securities | N | 35 | 31
Less Than 12 Months, Fair Value | $ 12,505 | $ 12,430
Less Than 12 Months, Unrealized Losses | (95) | (173)
12 Months Or Greater, Fair Value | 32,147 | 27,291
12 Months Or Greater, Unrealized Losses | (960) | (602)
Total, Fair Value | 44,652 | 39,721
Total, Unrealized Losses | $ (1,055) | $ (775)
Obligations of U.S. government agencies Mortgage backed securities - residential [Member] |  |
Available For Sale and Held To Maturity Securities |  |
Number of Securities | N | 2 | 2
Less Than 12 Months, Fair Value |  |
Less Than 12 Months, Unrealized Losses |  |
12 Months Or Greater, Fair Value | 534 | 605
12 Months Or Greater, Unrealized Losses | (97) | (96)
Total, Fair Value | 534 | 605
Total, Unrealized Losses | $ (97) | $ (96)
Obligations of U.S. government agencies Mortgage backed securities -commercial [Member] |  |
Available For Sale and Held To Maturity Securities |  |
Number of Securities | N | 1 | 1
Less Than 12 Months, Fair Value | $ 942 | $ 958
Less Than 12 Months, Unrealized Losses | (9) | (10)
12 Months Or Greater, Fair Value |  |
12 Months Or Greater, Unrealized Losses |  |
Total, Fair Value | 942 | 958
Total, Unrealized Losses | $ (9) | $ (10)
Obligations of U.S. government-sponsored enterprises Mortgage-backed securities-residential [Member] |  |
Available For Sale and Held To Maturity Securities |  |
Number of Securities | N | 24 | 20
Less Than 12 Months, Fair Value | $ 10,068 | $ 6,582
Less Than 12 Months, Unrealized Losses | (82) | (92)
12 Months Or Greater, Fair Value | 23,367 | 21,713
12 Months Or Greater, Unrealized Losses | (467) | (284)
Total, Fair Value | 33,435 | 28,295
Total, Unrealized Losses | $ (549) | $ (376)
Obligations of U.S. government-sponsored enterprises Debt securities [Member] |  |
Available For Sale and Held To Maturity Securities |  |
Number of Securities | N | 5 | 5
Less Than 12 Months, Fair Value | $ 1,495 | $ 4,890
Less Than 12 Months, Unrealized Losses | (4) | (71)
12 Months Or Greater, Fair Value | 5,359 | 1,996
12 Months Or Greater, Unrealized Losses | (104) | (4)
Total, Fair Value | 6,854 | 6,886
Total, Unrealized Losses | $ (108) | $ (75)
Private label mortgage-backed securities-residential [Member] |  |
Available For Sale and Held To Maturity Securities |  |
Number of Securities | N | 2 | 2
Less Than 12 Months, Fair Value |  |
Less Than 12 Months, Unrealized Losses |  |
12 Months Or Greater, Fair Value | 177 | 193
12 Months Or Greater, Unrealized Losses | (2) | (2)
Total, Fair Value | 177 | 193
Total, Unrealized Losses | $ (2) | $ (2)
Corporate securities [Member] |  |
Available For Sale and Held To Maturity Securities |  |
Number of Securities | N | 1 | 1
Less Than 12 Months, Fair Value |  |
Less Than 12 Months, Unrealized Losses |  |
12 Months Or Greater, Fair Value | 2,710 | 2,784
12 Months Or Greater, Unrealized Losses | (290) | (216)
Total, Fair Value | 2,710 | 2,784
Total, Unrealized Losses | $ (290) | $ (216)

X
- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as available for sale and held-to-maturity securities. + References No definition available. + Details
Name: | mgyr_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the aggregate fair value of investments in debt and equity securities categorized as available for sale and held-to-maturity securities that have been in a continuous unrealized loss position for less than twelve months. + References No definition available. + Details
Name: | mgyr_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the aggregate fair value of investments in debt and equity securities categorized as available for sale and held-to-maturity securities that have been in a continuous unrealized loss position for twelve months or longer. + References No definition available. + Details
Name: | mgyr_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents number of unrealized loss positions in available for sale and held to maturity securities. + References No definition available. + Details
Name: | mgyr_AvailableForSaleAndHeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions
Namespace Prefix: | mgyr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for securities which are categorized as available for sale and held-to-maturity securities. + References No definition available. + Details
Name: | mgyr_AvailableforsaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses2
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for less than twelve months for securities categorized as available for sale and held-to-maturity securities. + References No definition available. + Details
Name: | mgyr_AvailableforsaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses2
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents unrealized gain loss on held to maturity and available for sale securities. + References No definition available. + Details
Name: | mgyr_UnrealizedGainLossOnAvailableForSaleAndHeldToMaturitySecurities
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesAndHeldToMaturitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=mgyr_USGovernmentAgenciesDebtSecuritiesResidentialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=mgyr_USGovernmentAgenciesDebtSecuritiesCommercialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=mgyr_USGovernmentSponsoredEnterprisesDebtSecuritiesResidentialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_CorporateNoteSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |