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Allowance for Loan Losses (Tables) | 12 Months Ended
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Dec. 31, 2017
Receivables [Abstract] |
Allowance by Impairment Methodology and Loans by Impairment Methodology | The following tables present, as of December 31, 2017 and 2016, the total allowance for loan losses, the allowance by impairment methodology and loans by impairment methodology (in thousands).
| December 31, 2017
| Construction and Land Development |  | Secured by 1-4 Family Residential |  | Other Real Estate |  | Commercial and Industrial |  | Consumer and Other Loans |  | Total
Allowance for loan losses: |  |  |  |  |  |  |  |  |  |  |
Beginning Balance, December 31, 2016 | $ | 441 |  |  | $ | 1,019 |  |  | $ | 3,142 |  |  | $ | 380 |  |  | $ | 339 |  |  | $ | 5,321 |
Charge-offs | — |  |  | (126 | ) |  | — |  |  | — |  |  | (607 | ) |  | (733 | )
Recoveries | 11 |  |  | 302 |  |  | 50 |  |  | 10 |  |  | 265 |  |  | 638 |
Provision for (recovery of) loan losses | (38 | ) |  | (420 | ) |  | (244 | ) |  | 28 |  |  | 774 |  |  | 100 |
Ending Balance, December 31, 2017 | $ | 414 |  |  | $ | 775 |  |  | $ | 2,948 |  |  | $ | 418 |  |  | $ | 771 |  |  | $ | 5,326 |
Ending Balance: |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Collectively evaluated for impairment | 414 |  |  | 775 |  |  | 2,948 |  |  | 418 |  |  | 771 |  |  | 5,326 |
Loans: |  |  |  |  |  |  |  |  |  |  |
Ending Balance | 35,927 |  |  | 208,177 |  |  | 222,256 |  |  | 38,763 |  |  | 17,078 |  |  | 522,201 |
Individually evaluated for impairment | 1,150 |  |  | 1,307 |  |  | 1,289 |  |  | 65 |  |  | — |  |  | 3,811 |
Collectively evaluated for impairment | 34,777 |  |  | 206,870 |  |  | 220,967 |  |  | 38,698 |  |  | 17,078 |  |  | 518,390 |
| December 31, 2016
| Construction and Land Development |  | Secured by 1-4 Family Residential |  | Other Real Estate |  | Commercial and Industrial |  | Consumer and Other Loans |  | Total
Allowance for loan losses: |  |  |  |  |  |  |  |  |  |  |
Beginning Balance, December 31, 2015 | $ | 1,532 |  |  | $ | 939 |  |  | $ | 2,534 |  |  | $ | 306 |  |  | $ | 213 |  |  | $ | 5,524 |
Charge-offs | — |  |  | (83 | ) |  | (165 | ) |  | — |  |  | (540 | ) |  | (788 | )
Recoveries | 4 |  |  | 293 |  |  | 2 |  |  | 11 |  |  | 275 |  |  | 585 |
Provision for (recovery of) loan losses | (1,095 | ) |  | (130 | ) |  | 771 |  |  | 63 |  |  | 391 |  |  | — |
Ending Balance, December 31, 2016 | $ | 441 |  |  | $ | 1,019 |  |  | $ | 3,142 |  |  | $ | 380 |  |  | $ | 339 |  |  | $ | 5,321 |
Ending Balance: |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | — |  |  | 37 |  |  | — |  |  | — |  |  | — |  |  | 37 |
Collectively evaluated for impairment | 441 |  |  | 982 |  |  | 3,142 |  |  | 380 |  |  | 339 |  |  | 5,284 |
Loans: |  |  |  |  |  |  |  |  |  |  |
Ending Balance | 34,699 |  |  | 198,763 |  |  | 211,210 |  |  | 29,981 |  |  | 11,414 |  |  | 486,067 |
Individually evaluated for impairment | 1,973 |  |  | 1,828 |  |  | 984 |  |  | 75 |  |  | — |  |  | 4,860 |
Collectively evaluated for impairment | 32,726 |  |  | 196,935 |  |  | 210,226 |  |  | 29,906 |  |  | 11,414 |  |  | 481,207 |
Impaired Loans and Related Allowance | Impaired loans and the related allowance at December 31, 2017 and 2016, were as follows (in thousands):
| December 31, 2017
| Unpaid Principal Balance |  | Recorded Investment with No Allowance |  | Recorded Investment with Allowance |  | Total Recorded Investment |  | Related Allowance |  | Average Recorded Investment |  | Interest Income Recognized
Real estate loans: |  |  |  |  |  |  |  |  |  |  |  |  |
Construction and land development | $ | 1,627 |  |  | $ | 1,150 |  |  | $ | — |  |  | $ | 1,150 |  |  | $ | — |  |  | $ | 1,814 |  |  | $ | 63 |
Secured by 1-4 family | 1,387 |  |  | 1,307 |  |  | — |  |  | 1,307 |  |  | — |  |  | 1,637 |  |  | 64 |
Other real estate loans | 1,483 |  |  | 1,289 |  |  | — |  |  | 1,289 |  |  | — |  |  | 1,137 |  |  | 95 |
Commercial and industrial | 78 |  |  | 65 |  |  | — |  |  | 65 |  |  | — |  |  | 68 |  |  | 10 |
Total | $ | 4,575 |  |  | $ | 3,811 |  |  | $ | — |  |  | $ | 3,811 |  |  | $ | — |  |  | $ | 4,656 |  |  | $ | 232 |
| December 31, 2016
| Unpaid Principal Balance |  | Recorded Investment with No Allowance |  | Recorded Investment with Allowance |  | Total Recorded Investment |  | Related Allowance |  | Average Recorded Investment |  | Interest Income Recognized
Real estate loans: |  |  |  |  |  |  |  |  |  |  |  |  |
Construction and land development | $ | 2,388 |  |  | $ | 1,973 |  |  | $ | — |  |  | $ | 1,973 |  |  | $ | — |  |  | $ | 2,407 |  |  | $ | 66 |
Secured by 1-4 family | 1,851 |  |  | 1,675 |  |  | 153 |  |  | 1,828 |  |  | 37 |  |  | 2,013 |  |  | 87 |
Other real estate loans | 1,213 |  |  | 984 |  |  | — |  |  | 984 |  |  | — |  |  | 2,529 |  |  | 22 |
Commercial and industrial | 93 |  |  | 75 |  |  | — |  |  | 75 |  |  | — |  |  | 85 |  |  | 1 |
Total | $ | 5,545 |  |  | $ | 4,707 |  |  | $ | 153 |  |  | $ | 4,860 |  |  | $ | 37 |  |  | $ | 7,034 |  |  | $ | 176 |

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