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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, 2020	Dec. 31, 2019
LIBOR
Debt Instrument [Line Items]
Variable Rate					2.25%
ACB Trust I
Debt Instrument [Line Items]
Issuance Amount			$ 5,155,000
Carrying Amount at December 31, 2020					$ 3,830,000
Rate as of December 31					2.40%	4.09%
ACB Trust I | LIBOR
Debt Instrument [Line Items]
Variable Rate			2.15%
ACB Trust II
Debt Instrument [Line Items]
Issuance Amount		$ 3,093,000
Carrying Amount at December 31, 2020					$ 2,245,000
Rate as of December 31					2.06%	3.76%
ACB Trust II | LIBOR
Debt Instrument [Line Items]
Variable Rate		1.85%
RIVR Statutory Trust 1
Debt Instrument [Line Items]
Issuance Amount				$ 7,217,000
Carrying Amount at December 31, 2020					$ 5,923,000
Rate as of December 31					3.40%	5.10%
RIVR Statutory Trust 1 | LIBOR
Debt Instrument [Line Items]
Variable Rate				3.15%
Citizens First Statutory Trust I
Debt Instrument [Line Items]
Issuance Amount	$ 5,155,000
Carrying Amount at December 31, 2020					$ 4,105,000
Rate as of December 31					1.88%	3.75%
Citizens First Statutory Trust I | LIBOR
Debt Instrument [Line Items]
Variable Rate	1.65%

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+ 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
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399

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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=121572278&loc=d3e13433-108611

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