XML 100 R89.htm IDEA: XBRL DOCUMENT v3.23.3

FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK (Details) - Schedule of Table Presents Summary Information Regarding these Derivatives - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Customer Interest Rate Swaps [Member]
Classified in Other Assets:
Notional Amount	$ 36,020	$ 19,512	[1]
Average Maturity (Years)	4 years 2 months 12 days	5 years 10 months 24 days	[1]
Weighted Average Fixed Rate	4.96%	3.63%	[1]
Weighted Average Variable Rate	1 Mo. BSBY + 2.44	1 Mo. LIBOR + 2.50	[1]
Fair Value	$ 2,579	$ 2,275	[1]
Classified in Other Assets [Member]
Classified in Other Assets:
Notional Amount	$ 36,020	$ 26,452
Average Maturity (Years)	4 years 2 months 12 days	5 years 2 months 12 days
Weighted Average Fixed Rate	4.96%	4.88%
Fair Value	$ 2,579	$ 2,487
3rd Party Interest Rate swaps [Member]
Classified in Other Assets:
Notional Amount	$ 36,020	$ 19,512
Average Maturity (Years)	4 years 2 months 12 days	5 years 10 months 24 days
Weighted Average Fixed Rate	4.96%	3.63%
Weighted Average Variable Rate	1 Mo. BSBY + 2.44	1 Mo. LIBOR + 2.50
Fair Value	$ 2,579	$ 2,275
Classified in Other Liabilities [Member]
Classified in Other Assets:
Notional Amount	$ 36,020	$ 26,452
Average Maturity (Years)	4 years 2 months 12 days	5 years 2 months 12 days
Weighted Average Fixed Rate	4.96%	4.88%
Fair Value	$ 2,579	$ 2,487
Other Interest Rate Swap [Member]
Classified in Other Assets:
Notional Amount		$ 6,940
Average Maturity (Years)		4 years 7 months 6 days
Weighted Average Fixed Rate		6.13%
Weighted Average Variable Rate		1 Mo. BSBY + 3.00
Fair Value		$ 212
[1] (1) Derivative assets were incorrectly shown as a negative balance within the Company's Annual Report on Form 10-K for the year-ended September 30, 2022. The derivative asset balances have been corrected within the table above. The correction did not have an impact on the Company's consolidated balance sheet.

X

- References

No definition available.

+ Details

Name:	mgyr_ClassifiedInOtherAssetsAbstract
Namespace Prefix:	mgyr_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Weighted Average Variable Rate.

+ References

No definition available.

+ Details

Name:	mgyr_DerivativesWeightedAverageVariableRate
Namespace Prefix:	mgyr_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Average fixed interest rate related to the group of interest rate derivatives.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeAverageFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeAverageRemainingMaturity1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-10

+ Details

Name:	us-gaap_DerivativeFairValueOfDerivativeNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A

+ Details

Name:	us-gaap_DerivativeNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=mgyr_ClassifiedInOtherAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=mgyr_ThirdPartyInterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=mgyr_ClassifiedInOtherLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=mgyr_OtherInterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: