XML 41 R30.htm IDEA: XBRL DOCUMENT
v3.26.1

DEPOSITS (Tables) | 6 Months Ended
--- | ---
Mar. 31, 2026
Deposits [Abstract] |
Schedule of Deposits by Type of Account | A summary of deposits by type of account are summarized as follows:
|  | March 31, |  |  | September 30, |
|  | 2026 |  |  | 2025 |
|  | (In thousands) |
Demand accounts |  | $ | 133,738 |  |  | $ | 117,238 |
Savings accounts |  |  | 57,253 |  |  |  | 54,424 |
NOW accounts |  |  | 171,612 |  |  |  | 163,753 |
Money market accounts |  |  | 277,818 |  |  |  | 268,944 |
Certificates of deposit |  |  | 222,992 |  |  |  | 195,185 |
Retirement certificates |  |  | 15,025 |  |  |  | 14,763 |
|  | $ | 878,438 |  |  | $ | 814,307 |

X
- Definition Tabular disclosure of composition of entities interest bearing deposits. + References No definition available. + Details
Name: | mgyr_ScheduleOfInterestBearingDepositsTableTextBlock
Namespace Prefix: | mgyr_
Data Type: | dtr:textBlockItemType
Balance Type: | na
Period Type: | duration

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