Stockholders' Equity and Regulatory Capital Reconciliation of stockholders' equity to federal regulatory capital (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|---|---|---|---|---|
| Regulatory Capital Requirements [Abstract] | ||||
| Stockholders’ equity of the Corporation | $ 161,650 | $ 150,832 | $ 137,748 | $ 109,275 |
| Net unrealized and accumulated losses on specific items | 522 | 80 | ||
| Disallowed servicing assets | (652) | (370) | ||
| Disallowed goodwill and other intangibles | (10,560) | (10,622) | ||
| Junior subordinated notes | 10,004 | 10,000 | ||
| Tier 1 capital | 160,964 | 149,920 | ||
| Allowable general valuation allowances and subordinated debt | 43,153 | 39,243 | ||
| Total capital | $ 204,117 | $ 189,163 |