Consolidated Balance Sheets (Parenthetical) - USD ($) |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Securities held-to-maturity | $ 0 | $ 54,470,000 |
| Preferred stock, par value (in dollars per share) | $ 1,000 | $ 1,000 |
| Preferred stock, shares authorized | 20,000 | 20,000 |
| Preferred stock, shares issued | 9,283 | 9,283 |
| Common stock, par value (in dollars per share) | $ 1 | $ 1 |
| Common stock, shares authorized | 20,000,000 | 20,000,000 |
| Common stock, shares issued | 10,047,621 | 8,112,998 |
| Common stock, shares outstanding | 9,996,544 | 8,061,921 |
| Treasury stock, shares | 51,077 | 51,077 |