XML 65 R55.htm IDEA: XBRL DOCUMENT
v3.26.1

Note 10 - Fair Value of Financial Instruments - Financial Assets and Financial Liabilities Measured at Fair Value on a Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
Impaired loans | $ 58 | $ 189
Fair Value, Inputs, Level 1 [Member] |  |
Impaired loans | 0 | 0
Fair Value, Inputs, Level 2 [Member] |  |
Impaired loans | 0 | 0
Fair Value, Inputs, Level 3 [Member] |  |
Impaired loans | $ 58 | $ 189

X
- Definition This element represents loans classified as impaired measured at fair value. + References No definition available. + Details
Name: | ebmt_ImpairedLoansFairValueDisclosure
Namespace Prefix: | ebmt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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: |