XML 99 R87.htm IDEA: XBRL DOCUMENT v3.22.4

PENSION PLAN (Schedule of Fair Value Measurements of Plan Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2021
Investments	$ 3,886	$ 4,871
Fair Value, Inputs, Level 1 [Member]
Investments	3,886	4,871
Fair Value, Inputs, Level 2 [Member]
Investments
Fair Value, Inputs, Level 3 [Member]
Investments
Large-Cap Value [Member]
Investments	638	749
Large-Cap Value [Member] | Fair Value, Inputs, Level 1 [Member]
Investments	638	749
Large-Cap Value [Member] | Fair Value, Inputs, Level 2 [Member]
Investments
Large-Cap Value [Member] | Fair Value, Inputs, Level 3 [Member]
Investments
Large-Cap Core [Member]
Investments	633	749
Large-Cap Core [Member] | Fair Value, Inputs, Level 1 [Member]
Investments	633	749
Large-Cap Core [Member] | Fair Value, Inputs, Level 2 [Member]
Investments
Large-Cap Core [Member] | Fair Value, Inputs, Level 3 [Member]
Investments
Mid-Cap Core [Member]
Investments	407	506
Mid-Cap Core [Member] | Fair Value, Inputs, Level 1 [Member]
Investments	407	506
Mid-Cap Core [Member] | Fair Value, Inputs, Level 2 [Member]
Investments
Mid-Cap Core [Member] | Fair Value, Inputs, Level 3 [Member]
Investments
Small-Cap Core [Member]
Investments	381	481
Small-Cap Core [Member] | Fair Value, Inputs, Level 1 [Member]
Investments	381	481
Small-Cap Core [Member] | Fair Value, Inputs, Level 2 [Member]
Investments
Small-Cap Core [Member] | Fair Value, Inputs, Level 3 [Member]
Investments
Non-U.S. Core [Member]
Investments	573	838
Non-U.S. Core [Member] | Fair Value, Inputs, Level 1 [Member]
Investments	573	838
Non-U.S. Core [Member] | Fair Value, Inputs, Level 2 [Member]
Investments
Non-U.S. Core [Member] | Fair Value, Inputs, Level 3 [Member]
Investments
Short- Duration Corporate [Member]
Investments	785	853
Short- Duration Corporate [Member] | Fair Value, Inputs, Level 1 [Member]
Investments	$ 785	853
Intermediate-Term Core [Member] | Fair Value, Inputs, Level 1 [Member]
Investments		$ 665

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all investments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(h))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

+ Details

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

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=mgyr_LargeCapValueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=mgyr_LargeCapCoreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=mgyr_MidCapCoreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=mgyr_SmallCapCoreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=mgyr_NonUSCoreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=mgyr_ShortDurationCorporateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=mgyr_IntermediateTermCoreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: