Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The average effective interest rate during the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
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- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

Reference 1: 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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	na
Period Type:	duration

- Definition

Date the debt instrument was issued, in CCYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- 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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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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FHLB Advances and Other Borrowings (Schedule of Issuance of Subordinated Debentures) (Details) - USD ($)					12 Months Ended
	Oct. 16, 2006	Jul. 15, 2005	May 06, 2005	Mar. 26, 2003	Dec. 31, 2019	Dec. 31, 2018
LIBOR
Debt Instrument [Line Items]
Percentage over variable rate					1.75%
ACB Trust I
Debt Instrument [Line Items]
Date of Issuance			May 06, 2005
Issuance Amount			$ 5,155,000
Carrying Amount at December 31, 2019					$ 3,737,000
Variable Rate			90 day LIBOR + 2.15%
Rate as of December 31					4.09%	4.95%
Maturity Date			May 31, 2035
ACB Trust I \| LIBOR
Debt Instrument [Line Items]
Percentage over variable rate			2.15%
ACB Trust II
Debt Instrument [Line Items]
Date of Issuance		Jul. 15, 2005
Issuance Amount		$ 3,093,000
Carrying Amount at December 31, 2019					$ 2,187,000
Variable Rate		90 day LIBOR + 1.85%
Rate as of December 31					3.76%	4.50%
Maturity Date		Jul. 31, 2035
ACB Trust II \| LIBOR
Debt Instrument [Line Items]
Percentage over variable rate		1.85%
RIVR Statutory Trust 1
Debt Instrument [Line Items]
Date of Issuance				Mar. 26, 2003
Issuance Amount				$ 7,217,000
Carrying Amount at December 31, 2019					$ 5,818,000
Variable Rate				3-Month LIBOR + 3.15%
Rate as of December 31					5.10%	5.97%
Maturity Date				Mar. 31, 2033
RIVR Statutory Trust 1 \| LIBOR
Debt Instrument [Line Items]
Percentage over variable rate				3.15%
Citizens First Statutory Trust I
Debt Instrument [Line Items]
Date of Issuance	Oct. 16, 2006
Issuance Amount	$ 5,155,000
Carrying Amount at December 31, 2019					$ 4,040,000
Variable Rate	3-Month LIBOR + 1.65%
Rate as of December 31					3.75%
Maturity Date	Jan. 31, 2037
Citizens First Statutory Trust I \| LIBOR
Debt Instrument [Line Items]
Percentage over variable rate	1.65%