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v3.24.1.1.u2

Consolidated Statements of Income (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Condensed Consolidated Statements of Income (Unaudited) |  |
Reclassifications included in gains on sale of investment available for sale | $ (108) | $ 0
Provision for income taxes related to income tax expense for reclassification items | $ 26 | $ 0

X
- Definition The amount related to accumulated other comprehensive earnings reclassifications included in the total gain (loss) on sale of investments. + References No definition available. + Details
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Namespace Prefix: | mbin_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) related to reclassification items. + References No definition available. + Details
Name: | mbin_IncomeTaxExpenseBenefitRelatedToReclassificationItems
Namespace Prefix: | mbin_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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