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Loans and Allowance for Loan Losses - Loans By Credit Quality Indicators (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | $ 555,338 | $ 525,870
FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 441,849 | 417,496
ALC [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 113,489 | 108,374
ALC [Member] | Performing Financial Instruments [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 112,705 | 107,145
ALC [Member] | Nonperforming Financial Instruments [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 784 | 1,229
Real Estate [Member] | Construction, Land Development and Other Land Loans [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 27,348 | 41,340
Real Estate [Member] | Construction, Land Development and Other Land Loans [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 27,348 | 41,340
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 109,336 | 110,756
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 103,269 | 102,971
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | ALC [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 6,067 | 7,785
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | ALC [Member] | Performing Financial Instruments [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 5,936 | 7,657
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | ALC [Member] | Nonperforming Financial Instruments [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 131 | 128
Real Estate [Member] | Secured By Multi family Residential Properties [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 46,843 | 23,009
Real Estate [Member] | Secured By Multi family Residential Properties [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 46,843 | 23,009
Real Estate [Member] | Secured By Non-farm Non residential Properties [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 164,941 | 156,162
Real Estate [Member] | Secured By Non-farm Non residential Properties [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 164,941 | 156,162
Real Estate [Member] | Other Real Estate Loans [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 842 | 1,308
Real Estate [Member] | Other Real Estate Loans [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 842 | 1,308
Commercial and Industrial Loans [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans | [1] | 90,470 | 85,779
Commercial and Industrial Loans [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans | [1] | 90,470 | 85,779
Consumer Portfolio Segment [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 8,136 | 6,927
Consumer Portfolio Segment [Member] | Consumer Loans [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 37,477 | 38,583
Consumer Portfolio Segment [Member] | Consumer Loans [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 8,136 | 6,927
Consumer Portfolio Segment [Member] | Consumer Loans [Member] | ALC [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 29,341 | 31,656
Consumer Portfolio Segment [Member] | Consumer Loans [Member] | ALC [Member] | Performing Financial Instruments [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 28,908 | 30,826
Consumer Portfolio Segment [Member] | Consumer Loans [Member] | ALC [Member] | Nonperforming Financial Instruments [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 433 | 830
Consumer Portfolio Segment [Member] | Branch Retail [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 30,008 | 28,324
Consumer Portfolio Segment [Member] | Branch Retail [Member] | ALC [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 30,008 | 28,324
Consumer Portfolio Segment [Member] | Branch Retail [Member] | ALC [Member] | Performing Financial Instruments [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 29,858 | 28,171
Consumer Portfolio Segment [Member] | Branch Retail [Member] | ALC [Member] | Nonperforming Financial Instruments [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 150 | 153
Consumer Portfolio Segment [Member] | Indirect Sales [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 48,073 | 40,609
Consumer Portfolio Segment [Member] | Indirect Sales [Member] | ALC [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 48,073 | 40,609
Consumer Portfolio Segment [Member] | Indirect Sales [Member] | ALC [Member] | Performing Financial Instruments [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 48,003 | 40,491
Consumer Portfolio Segment [Member] | Indirect Sales [Member] | ALC [Member] | Nonperforming Financial Instruments [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 70 | 118
Pass [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 428,643 | 408,188
Pass [Member] | Real Estate [Member] | Construction, Land Development and Other Land Loans [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 26,997 | 40,200
Pass [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 101,001 | 100,485
Pass [Member] | Real Estate [Member] | Secured By Multi family Residential Properties [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 46,843 | 23,009
Pass [Member] | Real Estate [Member] | Secured By Non-farm Non residential Properties [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 159,511 | 153,077
Pass [Member] | Real Estate [Member] | Other Real Estate Loans [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 842 | 1,308
Pass [Member] | Commercial and Industrial Loans [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 85,353 | 83,261
Pass [Member] | Consumer Portfolio Segment [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 8,096 | 6,848
Special Mention [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 5,630 | 5,041
Special Mention [Member] | Real Estate [Member] | Construction, Land Development and Other Land Loans [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 351 | 914
Special Mention [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 137 | 154
Special Mention [Member] | Real Estate [Member] | Secured By Non-farm Non residential Properties [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 4,422 | 1,996
Special Mention [Member] | Commercial and Industrial Loans [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 720 | 1,977
Substandard [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 7,576 | 4,267
Substandard [Member] | Real Estate [Member] | Construction, Land Development and Other Land Loans [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  |  | 226
Substandard [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 2,131 | 2,332
Substandard [Member] | Real Estate [Member] | Secured By Non-farm Non residential Properties [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 1,008 | 1,089
Substandard [Member] | Commercial and Industrial Loans [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | 4,397 | 541
Substandard [Member] | Consumer Portfolio Segment [Member] | FUSB [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Loans |  | $ 40 | $ 79
[1] | Includes equipment financing leases.

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