XML 51 R41.htm IDEA: XBRL DOCUMENT
v3.23.1

INVESTMENT SECURITIES (Details) - Schedule of the amortized cost and fair values of securities available for sale - USD ($) $ in Thousands | Mar. 31, 2023 | Sep. 30, 2022
--- | --- | ---
Obligations of U.S. government agencies: |  |
Amortized Cost | $ 10,692 | $ 11,147
Gross Unrealized Gains | 1 |
Gross Unrealized Losses | (1,535) | (1,918)
Fair Value | 9,158 | 9,229
Obligations of U.S. government agencies: |  |
Amortized Cost | 89,722 | 91,646
Gross Unrealized Gains | 17 | 12
Gross Unrealized Losses | (9,782) | (11,744)
Fair Value | 79,957 | 79,914
Available for Sale and Held to Maturity [Member] |  |
Obligations of U.S. government agencies: |  |
Amortized Cost | 100,414 | 102,793
Gross Unrealized Gains | 18 | 12
Gross Unrealized Losses | (11,317) | (13,662)
Fair Value | 89,115 | 89,143
Obligations of U.S. government agencies Mortgage backed securities - residential [Member] |  |
Obligations of U.S. government agencies: |  |
Amortized Cost | 112 | 118
Gross Unrealized Gains |  |
Gross Unrealized Losses | (8) | (11)
Fair Value | 104 | 107
Obligations of U.S. government-sponsored enterprises Mortgage backed securities - residential [Member] |  |
Obligations of U.S. government agencies: |  |
Amortized Cost | 10,580 | 11,029
Gross Unrealized Gains | 1 |
Gross Unrealized Losses | (1,527) | (1,907)
Fair Value | 9,054 | 9,122
Obligations of U.S. government agencies: |  |
Amortized Cost | 47,302 | 48,961
Gross Unrealized Gains |  | 12
Gross Unrealized Losses | (6,528) | (7,548)
Fair Value | 40,774 | 41,425
Obligations of U.S. government agencies Mortgage-backed securities - residential [Member] |  |
Obligations of U.S. government agencies: |  |
Amortized Cost | 5,300 | 5,525
Gross Unrealized Gains |  |
Gross Unrealized Losses | (643) | (717)
Fair Value | 4,657 | 4,808
Obligations of U.S. government agencies Mortgage-backed securities - commercial [Member] |  |
Obligations of U.S. government agencies: |  |
Amortized Cost | 599 | 631
Gross Unrealized Gains |  |
Gross Unrealized Losses | (2) |
Fair Value | 597 | 631
Obligations of U.S. government-sponsored enterprises Debt securities [Member] |  |
Obligations of U.S. government agencies: |  |
Amortized Cost | 24,830 | 24,821
Gross Unrealized Gains |  |
Gross Unrealized Losses | (1,864) | (2,395)
Fair Value | 22,966 | 22,426
Private label mortgage-backed securities - residential [Member] |  |
Obligations of U.S. government agencies: |  |
Amortized Cost | 216 | 224
Gross Unrealized Gains |  |
Gross Unrealized Losses | (17) | (10)
Fair Value | 199 | 214
Obligations of state and political subdivisions [Member] |  |
Obligations of U.S. government agencies: |  |
Amortized Cost | 3,475 | 3,484
Gross Unrealized Gains | 17 |
Gross Unrealized Losses | (332) | (638)
Fair Value | 3,160 | 2,846
Corporate securities [Member] |  |
Obligations of U.S. government agencies: |  |
Amortized Cost | 8,000 | 8,000
Gross Unrealized Gains |  |
Gross Unrealized Losses | (396) | (436)
Fair Value | $ 7,604 | $ 7,564

X
- References No definition available. + Details
Name: | mgyr_AvailableForSaleSecurities1
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | mgyr_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax1
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Gross Unrealized Losses. + References No definition available. + Details
Name: | mgyr_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax2
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | mgyr_ObligationsOfUSGovernmentAgenciesAbstract1
Namespace Prefix: | mgyr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | mgyr_ObligationsOfUSGovernmentAgenciesAbstract2
Namespace Prefix: | mgyr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479130/326-30-45-1 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-5A Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-5 + Details
Name: | us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-5A Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-5 + Details
Name: | us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-5A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (aa) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-5 + Details
Name: | us-gaap_HeldToMaturitySecuritiesFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_InformationByCategoryOfDebtSecurityAxis=mgyr_AvailableForSaleAndHeldToMaturityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

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

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