Balance Sheets (Parenthetical) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Balance Sheets | ||
| Accounts receivable, allowances (in dollars) | $ 1,116 | $ 10,330 |
| 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 |
| Preferred stock, shares outstanding | 0 | 0 |
| Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 200,000,000 | 200,000,000 |
| Common stock, shares issued | 18,066,143 | 14,985,704 |
| Common stock, shares outstanding | 17,993,416 | 14,912,977 |
| Treasury stock, shares | 72,727 | 72,727 |