Consolidated Balance Sheets (Parenthetical) - $ / shares |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Preferred stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |
| Preferred stock, shares authorized | 10,000,000 | 10,000,000 |
| Preferred stock, shares issued | 0 | 0 |
| Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 100,000,000 | 100,000,000 |
| Common stock, shares issued | 19,585,777 | 19,585,777 |
| Common stock, shares outstanding | 18,379,389 | 18,239,939 |
| Treasury stock, shares | 1,206,379 | 1,345,838 |