XML 59 R49.htm IDEA: XBRL DOCUMENT
v3.22.4

IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains - USD ($) $ in Thousands | Dec. 31, 2022 | Sep. 30, 2022
--- | --- | ---
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | $ 88,273 | $ 88,864
Unrealized losses | (12,712) | (13,662)
Mortgage-backed securities - residential [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 4,800 | 4,915
Unrealized losses | (727) | (728)
Mortgage-backed securities - commercial [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 613 | 631
Unrealized losses | (1) |
Mortgage-backed securities - residential [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 49,719 | 50,268
Unrealized losses | (8,905) | (9,455)
Debt securities [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 22,592 | 22,427
Unrealized losses | (2,234) | (2,395)
Private label mortgage-backed securities residential [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 206 | 215
Unrealized losses | (14) | (10)
Obligations of state and political subdivisions [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 2,739 | 2,845
Unrealized losses | (435) | (638)
Corporate securities [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 7,604 | 7,563
Unrealized losses | (396) | (436)
Less Than 12 Months [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 31,243 | 39,968
Unrealized losses | (2,971) | (4,139)
Less Than 12 Months [Member] | Mortgage-backed securities - residential [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 2,306 | 2,364
Unrealized losses | (138) | (140)
Less Than 12 Months [Member] | Mortgage-backed securities - commercial [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 613 | 631
Unrealized losses | (1) |
Less Than 12 Months [Member] | Mortgage-backed securities - residential [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 15,061 | 21,180
Unrealized losses | (2,020) | (2,795)
Less Than 12 Months [Member] | Debt securities [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 9,870 | 11,664
Unrealized losses | (457) | (660)
Less Than 12 Months [Member] | Private label mortgage-backed securities residential [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 206 | 215
Unrealized losses | (14) | (10)
Less Than 12 Months [Member] | Obligations of state and political subdivisions [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 526 | 1,268
Unrealized losses | (2) | (181)
Less Than 12 Months [Member] | Corporate securities [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 2,661 | 2,646
Unrealized losses | (339) | (353)
12 Months Or Greater [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 57,030 | 48,896
Unrealized losses | (9,741) | (9,523)
12 Months Or Greater [Member] | Mortgage-backed securities - residential [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 2,494 | 2,551
Unrealized losses | (589) | (588)
12 Months Or Greater [Member] | Mortgage-backed securities - residential [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 34,658 | 29,088
Unrealized losses | (6,885) | (6,660)
12 Months Or Greater [Member] | Debt securities [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 12,722 | 10,763
Unrealized losses | (1,777) | (1,735)
12 Months Or Greater [Member] | Obligations of state and political subdivisions [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 2,213 | 1,577
Unrealized losses | (433) | (457)
12 Months Or Greater [Member] | Corporate securities [Member] |  |
IMPAIRMENT OF INVESTMENT SECURITIES (Details) - Schedule of investment securities with fair values greater than their amortized cost contain unrealized gains [Line Items] |  |
Fair value | 4,943 | 4,917
Unrealized losses | $ (57) | $ (83)

X
- References No definition available. + Details
Name: | mgyr_FairValue1
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- References No definition available. + Details
Name: | mgyr_UnrealizedLosses
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ResidentialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CommercialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=mgyr_ResidentialMortgageBackedSecurities1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_DebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=mgyr_PrivateLabelMortgageBackedSecuritiesResidentialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=mgyr_ObligationsOfStateAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=mgyr_LessThan12MonthsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=mgyr_Months12OrGreaterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |