XML 67 R56.htm IDEA: XBRL DOCUMENT
v3.8.0.1

INCOME TAXES (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2018 | Sep. 30, 2017 | Mar. 31, 2017 | Mar. 31, 2018 | Mar. 31, 2017 | Sep. 30, 2018
Change in federal corporate tax rate |  | 34.00% |  | 21.00% |  |
Statutory federal tax rate | 24.00% |  | 34.00% | 24.00% | 34.00% |
Increase income tax expense |  |  |  | $ 182 |  |
Change in income tax expense |  |  |  | 306 |  |
Amount of application of newly enacted rates deferred tax assets balances |  |  |  | $ 125 |  |
Subsequent Event [Member] |  |  |  |  |  |
Change in federal corporate tax rate |  |  |  |  |  | 24.00%

X
- Definition Amount of application of newly enacted rates deferred tax assets balances. + References No definition available. + Details
Name: | mgyr_AmountOfApplicationOfNewlyEnactedRatesDeferredTaxAssetsBalances
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Change in federal corporate tax rate. + References No definition available. + Details
Name: | mgyr_ChangeEffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Namespace Prefix: | mgyr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Increase income tax expense. + References No definition available. + Details
Name: | mgyr_IncreaseIncomeTaxExpense
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reduction income tax expense. + References No definition available. + Details
Name: | mgyr_ReductionIncomeTaxExpense
Namespace Prefix: | mgyr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 + Details
Name: | us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |