|
Securities - Summary of Gross Unrealized Losses and Fair Value of Securities (Detail) (USD $)
In Thousands, unless otherwise specified
|
Jun. 30, 2013
|
Dec. 31, 2012
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Gross unrealized losses, less than 12 months |
$ 2,569 |
$ 99 |
| Fair value, less than 12 months |
66,214 |
20,237 |
| Gross unrealized losses, 12 months or more |
9 |
33 |
| Fair value, 12 months or more |
1,410 |
1,020 |
| Gross unrealized losses, Total |
2,578 |
132 |
| Fair value, Total |
67,624 |
21,257 |
|
U.S. Treasury Securities [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Gross unrealized losses, less than 12 months |
13 |
|
| Fair value, less than 12 months |
993 |
|
| Gross unrealized losses, Total |
13 |
|
| Fair value, Total |
993 |
|
|
Obligations of U.S. Government Corporations and Agencies [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Gross unrealized losses, less than 12 months |
1,148 |
43 |
| Fair value, less than 12 months |
26,849 |
15,957 |
| Gross unrealized losses, Total |
1,148 |
43 |
| Fair value, Total |
26,849 |
15,957 |
|
Mortgage-Backed Securities in Government Sponsored Entities [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Gross unrealized losses, less than 12 months |
1,218 |
1 |
| Fair value, less than 12 months |
32,565 |
344 |
| Gross unrealized losses, Total |
1,218 |
1 |
| Fair value, Total |
32,565 |
344 |
|
Asset-Backed Securities in Government Sponsored Entities [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Gross unrealized losses, less than 12 months |
|
39 |
| Fair value, less than 12 months |
|
1,833 |
| Gross unrealized losses, Total |
|
39 |
| Fair value, Total |
|
1,833 |
|
Obligations of States and Political Subdivisions [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Gross unrealized losses, less than 12 months |
183 |
12 |
| Fair value, less than 12 months |
5,239 |
1,737 |
| Gross unrealized losses, Total |
183 |
12 |
| Fair value, Total |
5,239 |
1,737 |
|
Corporate Bonds [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Gross unrealized losses, less than 12 months |
7 |
4 |
| Fair value, less than 12 months |
568 |
366 |
| Gross unrealized losses, 12 months or more |
8 |
24 |
| Fair value, 12 months or more |
1,357 |
975 |
| Gross unrealized losses, Total |
15 |
28 |
| Fair value, Total |
1,925 |
1,341 |
|
Total Debt Securities [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Gross unrealized losses, less than 12 months |
2,569 |
99 |
| Fair value, less than 12 months |
66,214 |
20,237 |
| Gross unrealized losses, 12 months or more |
8 |
24 |
| Fair value, 12 months or more |
1,357 |
975 |
| Gross unrealized losses, Total |
2,577 |
123 |
| Fair value, Total |
67,571 |
21,212 |
|
Equity Securities in Financial Institutions [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Gross unrealized losses, 12 months or more |
1 |
9 |
| Fair value, 12 months or more |
53 |
45 |
| Gross unrealized losses, Total |
1 |
9 |
| Fair value, Total |
$ 53 |
$ 45 |