Deposits - Components of Deposits (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Deposits [Abstract] | ||
| Noninterest-bearing | $ 33,422 | $ 29,392 |
| Interest-bearing demand | 18,532 | 16,261 |
| Statement savings | 28,383 | 28,327 |
| Money market | 204,998 | 211,436 |
| Certificates of deposit, retail | 356,653 | 323,840 |
| Certificates of deposit, brokered | 75,488 | 66,151 |
| Total deposits | $ 717,476 | $ 675,407 |