Loans Modified as Troubled Debt Restructurings by Loan Class Segregated by Accrual Status (Detail) - USD ($) $ in Thousands |
Sep. 30, 2016 |
Dec. 31, 2015 |
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
|
$ 14,762
|
$ 15,301
|
| Allowance for loan losses related to TDRs |
|
552
|
590
|
| Commercial Loans | Single-family Non-owner Occupied |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
|
937
|
950
|
| Commercial Loans | Non-farm, Non-residential |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
|
4,205
|
4,600
|
| Consumer Real Estate | Home Equity Lines |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
|
162
|
170
|
| Consumer Real Estate | Single Family Owner Occupied |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
|
8,876
|
8,989
|
| Consumer Real Estate | Owner Occupied Construction |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
|
582
|
592
|
| Nonaccrual |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
[1] |
1,311
|
1,339
|
| Nonaccrual | Commercial Loans | Single-family Non-owner Occupied |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
[1] |
39
|
130
|
| Nonaccrual | Consumer Real Estate | Home Equity Lines |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
[1] |
|
127
|
| Nonaccrual | Consumer Real Estate | Single Family Owner Occupied |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
[1] |
929
|
733
|
| Nonaccrual | Consumer Real Estate | Owner Occupied Construction |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
[1] |
343
|
349
|
| Accrual |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
|
13,451
|
13,962
|
| Accrual | Commercial Loans | Single-family Non-owner Occupied |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
|
898
|
820
|
| Accrual | Commercial Loans | Non-farm, Non-residential |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
|
4,205
|
4,600
|
| Accrual | Consumer Real Estate | Home Equity Lines |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
|
162
|
43
|
| Accrual | Consumer Real Estate | Single Family Owner Occupied |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
|
7,947
|
8,256
|
| Accrual | Consumer Real Estate | Owner Occupied Construction |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Total TDRs |
|
$ 239
|
$ 243
|
|
|