Consolidated Balance Sheets (Parenthetical) - $ / shares |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Preferred stock, par value (in dollars per share) | $ 0.0001 | $ 0.0001 |
| Preferred stock, shares authorized (in shares) | 10,000,000 | 10,000,000 |
| Preferred stock, share issued (in shares) | 0 | 0 |
| Preferred stock, shares outstanding (in shares) | 0 | 0 |
| Common stock, par value (in dollars per share) | $ 0.0001 | $ 0.0001 |
| Common stock, shares authorized (in shares) | 500,000,000 | 500,000,000 |
| Common stock, shares outstanding (in shares) | 16,643,000 | 16,766,000 |
| Treasury stock, shares (in shares) | 0 | 50,000 |