Securities - Schedule of Amortized Cost and Estimated Fair Value of Securities (Detail) - USD ($)
$ in Thousands |
Jun. 30, 2015 |
Dec. 31, 2014 |
| Schedule Of Available For Sale Securities And Held To Maturity [Line Items] |
|
|
| Available-for-Sale Securities, Amortized Cost |
$ 29,039
|
$ 33,632
|
| Available-for-Sale Securities, Fair Value |
29,977
|
34,932
|
| Held-to-Maturity Securities, Amortized Cost |
12,609
|
|
| Held-to-Maturity Securities, Fair Value |
12,122
|
|
| Municipal Securities [Member] |
|
|
| Schedule Of Available For Sale Securities And Held To Maturity [Line Items] |
|
|
| Available-for-Sale Securities 0 to 5 years, Amortized Cost |
0
|
|
| Available-for-Sale Securities 5 to 10 years, Amortized Cost |
1,047
|
|
| Available-for-Sale Securities Over 10 years, Amortized Cost |
3,361
|
|
| Available-for-Sale Securities, Amortized Cost |
4,408
|
4,408
|
| Available-for-Sale Securities 0 to 5 years, Fair Value |
0
|
|
| Available-for-Sale Securities 5 to 10 years, Fair Value |
1,095
|
|
| Available-for-Sale Securities Over 10 years, Fair Value |
3,477
|
|
| Available-for-Sale Securities, Fair Value |
4,572
|
4,681
|
| Held-to-Maturity Securities 0 to 5 years, Amortized Cost |
0
|
|
| Held-to-Maturity Securities 5 to 10 years, Amortized Cost |
0
|
|
| Held-to-Maturity Securities Over 10 years, Amortized Cost |
12,609
|
|
| Held-to-Maturity Securities, Amortized Cost |
12,609
|
|
| Held-to-Maturity Securities 0 to 5 years, Fair Value |
0
|
|
| Held-to-Maturity Securities 5 to 10 years, Fair Value |
0
|
|
| Held-to-Maturity Securities Over 10 years, Fair Value |
12,122
|
|
| Held-to-Maturity Securities, Fair Value |
12,122
|
|
| Mortgage-Backed Securities [Member] |
|
|
| Schedule Of Available For Sale Securities And Held To Maturity [Line Items] |
|
|
| Available-for-Sale Securities Mortgage-backed securities, Amortized Cost |
24,631
|
|
| Available-for-Sale Securities, Amortized Cost |
24,631
|
27,723
|
| Available-for-Sale Securities Mortgage-backed securities, Fair Value |
25,405
|
|
| Available-for-Sale Securities, Fair Value |
25,405
|
$ 28,750
|
| Held-to-Maturity Securities Mortgage-backed securities, Amortized Cost |
0
|
|
| Held-to-Maturity Securities Mortgage-backed securities, Fair Value |
$ 0
|
|