v3.21.1

Long-Term Debt - Other Long-Term Debt (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Finance lease payable
Debt Instrument [Line Items]
Weighted Average Rate	8.89%	8.89%
Balance	$ 1,061	$ 1,096
FHLB borrowings
Debt Instrument [Line Items]
Weighted Average Rate	1.90%	1.92%
Balance	$ 84,174	$ 91,198
Federal home loan, bank advances general debt obligations, disclosures maximum borrowing capacity as percentage of total assets	45.00%
Other long-term debt
Debt Instrument [Line Items]
Weighted Average Rate	1.99%	2.00%
Balance	$ 85,235	$ 92,294

X

- Definition

Represents the maximum borrowing capacity from the Federal Home Loan Bank system, expressed as a percentage of the entity's total assets, provided the entity is able to pledge an adequate amount of qualified assets to secure the borrowings.

+ References

No definition available.

+ Details

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Namespace Prefix:	mofg_
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Balance Type:	na
Period Type:	duration

X

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870

Reference 2: 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(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

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Balance Type:	credit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

+ Details

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X

- Details

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X

- Details

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X

- Details

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