Loans Receivable, Credit Quality for Loans and the Allowance for Loan Losses - Schedule of Impaired Loans by Loan Portfolio Segments (Detail) - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
|
Sep. 30, 2015 |
Sep. 30, 2014 |
Sep. 30, 2015 |
Sep. 30, 2014 |
Dec. 31, 2014 |
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Impaired loans with no related allowance recorded, recorded investment |
$ 8,187
|
|
$ 8,187
|
|
$ 7,670
|
| Impaired loans with an allowance recorded, recorded investment |
1,501
|
|
1,501
|
|
738
|
| Impaired loans, recorded investment |
9,688
|
|
9,688
|
|
8,408
|
| Impaired loans with no related allowance recorded, unpaid principal balance |
8,187
|
|
8,187
|
|
7,670
|
| Impaired loans with an allowance recorded, unpaid principal balance |
1,501
|
|
1,501
|
|
738
|
| Impaired loans, unpaid principal balance |
9,688
|
|
9,688
|
|
8,408
|
| Impaired loans, related allowance |
133
|
|
133
|
|
82
|
| Impaired loans with no related allowance recorded, average recorded investment |
8,385
|
$ 7,683
|
7,962
|
$ 7,772
|
|
| Impaired loans with an allowance recorded, average recorded investment |
1,503
|
503
|
844
|
327
|
|
| Impaired loans, average recorded investment |
9,888
|
8,186
|
8,806
|
8,099
|
|
| Impaired loans with no related allowance recorded, interest income recognized |
103
|
97
|
301
|
293
|
|
| Impaired loans with an allowance recorded, interest income recognized |
2
|
4
|
31
|
10
|
|
| Impaired loans, interest income recognized |
105
|
101
|
332
|
303
|
|
| Home Equity Lines of Credit [Member] |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Impaired loans with no related allowance recorded, recorded investment |
400
|
|
400
|
|
774
|
| Impaired loans, recorded investment |
400
|
|
400
|
|
774
|
| Impaired loans with no related allowance recorded, unpaid principal balance |
400
|
|
400
|
|
774
|
| Impaired loans, unpaid principal balance |
400
|
|
400
|
|
774
|
| Impaired loans with no related allowance recorded, average recorded investment |
443
|
762
|
446
|
761
|
|
| Impaired loans, average recorded investment |
443
|
762
|
446
|
761
|
|
| Impaired loans with no related allowance recorded, interest income recognized |
3
|
4
|
19
|
13
|
|
| Impaired loans, interest income recognized |
3
|
4
|
19
|
13
|
|
| Commercial [Member] |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Impaired loans with no related allowance recorded, recorded investment |
1,011
|
|
1,011
|
|
1,193
|
| Impaired loans with an allowance recorded, recorded investment |
1,193
|
|
1,193
|
|
|
| Impaired loans, recorded investment |
2,204
|
|
2,204
|
|
1,193
|
| Impaired loans with no related allowance recorded, unpaid principal balance |
1,011
|
|
1,011
|
|
1,193
|
| Impaired loans with an allowance recorded, unpaid principal balance |
1,193
|
|
1,193
|
|
|
| Impaired loans, unpaid principal balance |
2,204
|
|
2,204
|
|
1,193
|
| Impaired loans, related allowance |
120
|
|
120
|
|
|
| Impaired loans with no related allowance recorded, average recorded investment |
1,014
|
1,065
|
1,023
|
1,029
|
|
| Impaired loans with an allowance recorded, average recorded investment |
1,193
|
|
530
|
|
|
| Impaired loans, average recorded investment |
2,207
|
1,065
|
1,553
|
1,029
|
|
| Impaired loans with no related allowance recorded, interest income recognized |
22
|
11
|
22
|
34
|
|
| Impaired loans with an allowance recorded, interest income recognized |
|
|
27
|
|
|
| Impaired loans, interest income recognized |
22
|
11
|
49
|
34
|
|
| Commercial Real Estate Non-owner Occupied [Member] |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Impaired loans with no related allowance recorded, recorded investment |
2,193
|
|
2,193
|
|
1,893
|
| Impaired loans with an allowance recorded, recorded investment |
|
|
|
|
141
|
| Impaired loans, recorded investment |
2,193
|
|
2,193
|
|
2,034
|
| Impaired loans with no related allowance recorded, unpaid principal balance |
2,193
|
|
2,193
|
|
1,893
|
| Impaired loans with an allowance recorded, unpaid principal balance |
|
|
|
|
141
|
| Impaired loans, unpaid principal balance |
2,193
|
|
2,193
|
|
2,034
|
| Impaired loans, related allowance |
|
|
|
|
50
|
| Impaired loans with no related allowance recorded, average recorded investment |
2,183
|
1,902
|
2,183
|
1,905
|
|
| Impaired loans with an allowance recorded, average recorded investment |
|
48
|
|
16
|
|
| Impaired loans, average recorded investment |
2,183
|
1,950
|
2,183
|
1,921
|
|
| Impaired loans with no related allowance recorded, interest income recognized |
23
|
25
|
62
|
76
|
|
| Impaired loans with an allowance recorded, interest income recognized |
|
1
|
|
2
|
|
| Impaired loans, interest income recognized |
23
|
26
|
62
|
78
|
|
| Commercial Real Estate Owner Occupied [Member] |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Impaired loans with no related allowance recorded, recorded investment |
1,716
|
|
1,716
|
|
904
|
| Impaired loans with an allowance recorded, recorded investment |
|
|
|
|
282
|
| Impaired loans, recorded investment |
1,716
|
|
1,716
|
|
1,186
|
| Impaired loans with no related allowance recorded, unpaid principal balance |
1,716
|
|
1,716
|
|
904
|
| Impaired loans with an allowance recorded, unpaid principal balance |
|
|
|
|
282
|
| Impaired loans, unpaid principal balance |
1,716
|
|
1,716
|
|
1,186
|
| Impaired loans, related allowance |
|
|
|
|
22
|
| Impaired loans with no related allowance recorded, average recorded investment |
1,725
|
1,032
|
1,215
|
1,078
|
|
| Impaired loans, average recorded investment |
1,725
|
1,032
|
1,215
|
1,078
|
|
| Impaired loans with no related allowance recorded, interest income recognized |
23
|
23
|
69
|
69
|
|
| Impaired loans, interest income recognized |
23
|
23
|
69
|
69
|
|
| Commercial Real Estate 1-4 Family Investment [Member] |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Impaired loans with no related allowance recorded, recorded investment |
670
|
|
670
|
|
857
|
| Impaired loans with an allowance recorded, recorded investment |
186
|
|
186
|
|
191
|
| Impaired loans, recorded investment |
856
|
|
856
|
|
1,048
|
| Impaired loans with no related allowance recorded, unpaid principal balance |
670
|
|
670
|
|
857
|
| Impaired loans with an allowance recorded, unpaid principal balance |
186
|
|
186
|
|
191
|
| Impaired loans, unpaid principal balance |
856
|
|
856
|
|
1,048
|
| Impaired loans, related allowance |
7
|
|
7
|
|
5
|
| Impaired loans with no related allowance recorded, average recorded investment |
675
|
947
|
681
|
1,004
|
|
| Impaired loans with an allowance recorded, average recorded investment |
188
|
330
|
191
|
185
|
|
| Impaired loans, average recorded investment |
863
|
1,277
|
872
|
1,189
|
|
| Impaired loans with no related allowance recorded, interest income recognized |
2
|
10
|
13
|
30
|
|
| Impaired loans, interest income recognized |
2
|
10
|
13
|
30
|
|
| Residential Real Estate [Member] |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Impaired loans with no related allowance recorded, recorded investment |
2,197
|
|
2,197
|
|
1,834
|
| Impaired loans with an allowance recorded, recorded investment |
122
|
|
122
|
|
124
|
| Impaired loans, recorded investment |
2,319
|
|
2,319
|
|
1,958
|
| Impaired loans with no related allowance recorded, unpaid principal balance |
2,197
|
|
2,197
|
|
1,834
|
| Impaired loans with an allowance recorded, unpaid principal balance |
122
|
|
122
|
|
124
|
| Impaired loans, unpaid principal balance |
2,319
|
|
2,319
|
|
1,958
|
| Impaired loans, related allowance |
6
|
|
6
|
|
5
|
| Impaired loans with no related allowance recorded, average recorded investment |
2,345
|
1,760
|
2,414
|
1,780
|
|
| Impaired loans with an allowance recorded, average recorded investment |
122
|
125
|
123
|
126
|
|
| Impaired loans, average recorded investment |
2,467
|
1,885
|
2,537
|
1,906
|
|
| Impaired loans with no related allowance recorded, interest income recognized |
30
|
24
|
116
|
71
|
|
| Impaired loans with an allowance recorded, interest income recognized |
2
|
3
|
4
|
8
|
|
| Impaired loans, interest income recognized |
$ 32
|
27
|
$ 120
|
79
|
|
| Commercial Land and Land Development [Member] |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Impaired loans with no related allowance recorded, recorded investment |
|
|
|
|
215
|
| Impaired loans, recorded investment |
|
|
|
|
215
|
| Impaired loans with no related allowance recorded, unpaid principal balance |
|
|
|
|
215
|
| Impaired loans, unpaid principal balance |
|
|
|
|
$ 215
|
| Impaired loans with no related allowance recorded, average recorded investment |
|
215
|
|
215
|
|
| Impaired loans, average recorded investment |
|
$ 215
|
|
$ 215
|
|