Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Trade accounts receivable, allowances | $ 155 | $ 307 |
| Preferred stock, par value (in dollars per share) | $ 0.0001 | $ 0.0001 |
| Preferred stock, shares authorized | 2,000,000 | 2,000,000 |
| Preferred stock, shares issued | 0 | 0 |
| Preferred stock, shares outstanding | 0 | 0 |
| Common stock, par value (in dollars per share) | $ 0.0001 | $ 0.0001 |
| Common stock, number of shares authorized | 30,000,000 | 15,000,000 |
| Common stock, number of shares issued | 11,648,978 | 9,423,975 |
| Common stock, number of shares outstanding | 11,648,978 | 9,423,975 |