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Loans and Allowance for Loan and Lease Losses - Loans By Credit Quality Indicators (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable Recorded Investment [Line Items]
Loans	$ 710,944	$ 650,123
As a percentage of total loans	100.00%	100.00%
Construction, Land Development and Other Land Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	$ 67,048	$ 37,282
Secured By Multi family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	46,000	54,326
Secured By Non-farm Non residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	197,901	184,528
Secured by 1-4 Family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	72,727	88,856
Real Estate [Member] | Construction, Land Development and Other Land Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	67,048	37,282
Real Estate [Member] | Secured By Multi family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	46,000	54,326
Real Estate [Member] | Secured By Non-farm Non residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	197,901	184,528
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	72,727	88,856
Commercial and Industrial Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	73,947	81,735
Consumer Portfolio Segment [Member] | Direct Consumer [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	21,689	29,788
Consumer Portfolio Segment [Member] | Branch Retail [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	25,692	32,094
Consumer Portfolio Segment [Member] | Indirect Sales [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	205,940	141,514
FUSB [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	667,247	591,000
FUSB [Member] | Pass And Criticized [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	$ 372,059	$ 341,137
As a percentage of total loans	96.66%	95.33%
FUSB [Member] | Special Mention
Financing Receivable Recorded Investment [Line Items]
Loans	$ 10,303	$ 9,672
As a percentage of total loans	2.68%	2.70%
FUSB [Member] | Pass And Criticized [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	$ 2,534	$ 7,062
As a percentage of total loans	0.66%	1.97%
FUSB [Member] | Pass And Criticized [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	$ 384,896	$ 357,871
As a percentage of total loans	100.00%	100.00%
FUSB [Member] | Real Estate [Member] | Construction, Land Development and Other Land Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	$ 67,048	$ 37,282
FUSB [Member] | Real Estate [Member] | Secured By Multi family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	46,000	54,326
FUSB [Member] | Real Estate [Member] | Secured By Non-farm Non residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	197,901	184,528
FUSB [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	70,439	85,271
FUSB [Member] | Real Estate [Member] | Pass And Criticized [Member] | Construction, Land Development and Other Land Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	67,046	36,719
FUSB [Member] | Real Estate [Member] | Pass And Criticized [Member] | Secured By Multi family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	43,472	54,326
FUSB [Member] | Real Estate [Member] | Pass And Criticized [Member] | Secured By Non-farm Non residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	189,425	170,338
FUSB [Member] | Real Estate [Member] | Special Mention | Construction, Land Development and Other Land Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans		558
FUSB [Member] | Real Estate [Member] | Special Mention | Secured By Multi family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	2,528
FUSB [Member] | Real Estate [Member] | Special Mention | Secured By Non-farm Non residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	7,442	8,572
FUSB [Member] | Real Estate [Member] | Pass And Criticized [Member] | Construction, Land Development and Other Land Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	2	5
FUSB [Member] | Real Estate [Member] | Pass And Criticized [Member] | Secured By Non-farm Non residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	1,034	5,618
FUSB [Member] | Real Estate [Member] | Pass And Criticized [Member] | Construction, Land Development and Other Land Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	67,048	37,282
FUSB [Member] | Real Estate [Member] | Pass And Criticized [Member] | Secured By Multi family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	46,000	54,326
FUSB [Member] | Real Estate [Member] | Pass And Criticized [Member] | Secured By Non-farm Non residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	197,901	184,528
FUSB [Member] | Commercial and Industrial Loans [Member] | Pass And Criticized [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	72,116	79,754
FUSB [Member] | Commercial and Industrial Loans [Member] | Special Mention
Financing Receivable Recorded Investment [Line Items]
Loans	333	542
FUSB [Member] | Commercial and Industrial Loans [Member] | Pass And Criticized [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	1,498	1,439
FUSB [Member] | Commercial and Industrial Loans [Member] | Pass And Criticized [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	73,947	81,735
FUSB [Member] | Consumer Portfolio Segment [Member] | Direct Consumer [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	5,972	6,344
FUSB [Member] | Consumer Portfolio Segment [Member] | Indirect Sales [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	205,940	141,514
ALC [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	43,697	59,123
ALC [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	$ 323,891	$ 289,674
As a percentage of total loans	99.34%	99.12%
ALC [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	$ 2,157	$ 2,578
As a percentage of total loans	0.66%	0.88%
ALC [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	$ 326,048	$ 292,252
As a percentage of total loans	100.00%	100.00%
ALC [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	$ 2,288	$ 3,585
ALC [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	71,526	86,665
ALC [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	1,201	2,191
ALC [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	72,727	88,856
ALC [Member] | Consumer Portfolio Segment [Member] | Direct Consumer [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	15,717	23,444
ALC [Member] | Consumer Portfolio Segment [Member] | Direct Consumer [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	20,939	29,679
ALC [Member] | Consumer Portfolio Segment [Member] | Direct Consumer [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	750	109
ALC [Member] | Consumer Portfolio Segment [Member] | Direct Consumer [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	21,689	29,788
ALC [Member] | Consumer Portfolio Segment [Member] | Branch Retail [Member]
Financing Receivable Recorded Investment [Line Items]
Loans	25,692	32,094
ALC [Member] | Consumer Portfolio Segment [Member] | Branch Retail [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	25,486	31,816
ALC [Member] | Consumer Portfolio Segment [Member] | Branch Retail [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	206	278
ALC [Member] | Consumer Portfolio Segment [Member] | Branch Retail [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	25,692	32,094
ALC [Member] | Consumer Portfolio Segment [Member] | Indirect Sales [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	205,940	141,514
ALC [Member] | Consumer Portfolio Segment [Member] | Indirect Sales [Member] | Performing Financial Instruments
Financing Receivable Recorded Investment [Line Items]
Loans	$ 205,940	$ 141,514

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

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