XML 104 R86.htm IDEA: XBRL DOCUMENT v3.21.1

Subsequent Events - Additional Information (Details) $ / shares in Units, $ in Millions	Jan. 20, 2021 USD ($) $ / shares shares	Jan. 19, 2021	Sep. 30, 2020	Apr. 27, 2017
Community First Bancshares, MHC
Subsequent Events [Line Items]
Common stock ownership percentage			54.00%	54.00%
Subsequent Event [Member]
Subsequent Events [Line Items]
Sale of stock, gross proceeds	$ 37.0
Sale of stock, number of common stock issued | shares	3,701,509
Sale of stock, price per share | $ / shares	$ 10.00
Cash contributions to Employee Stock Ownership Plan ("ESOP")	$ 3.0
Employee stock ownership plan per share | $ / shares	$ 10.00
Offering expenses	$ 1.6
Amount invested in bank operations	$ 16.3
Common stock exchange ratio	0.90686
Subsequent Event [Member] | Community First Bancshares, MHC
Subsequent Events [Line Items]
Common stock ownership percentage		54.00%

X

- Definition

Amount invested in bank operations.

+ References

No definition available.

+ Details

Name:	afbi_AmountInvestedInBankOperations
Namespace Prefix:	afbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Common stock exchange ratio.

+ References

No definition available.

+ Details

Name:	afbi_CommonStockExchangeRatio
Namespace Prefix:	afbi_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Employee stock ownership plan Esop per share.

+ References

No definition available.

+ Details

Name:	afbi_EmployeeStockOwnershipPlanEsopPerShare
Namespace Prefix:	afbi_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Offering expenses.

+ References

No definition available.

+ Details

Name:	afbi_OfferingExpenses
Namespace Prefix:	afbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Subsequent events.

+ References

No definition available.

+ Details

Name:	afbi_SubsequentEventsLineItems
Namespace Prefix:	afbi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

This item represents the amount of cash contributions during the period made by the entity to the Employee Stock Ownership Plan (ESOP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929

+ Details

Name:	us-gaap_EmployeeStockOwnershipPlanESOPCashContributionsToESOP
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of consideration received by subsidiary or equity investee in exchange for shares of stock issued or sold. Includes amount of cash received, fair value of noncash assets received, and fair value of liabilities assumed by the investor.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockConsiderationReceivedPerTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	dei_LegalEntityAxis=afbi_CommunityFirstBancsharesMutualHoldingCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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