Loss Per Common Share (Details) - shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
|
| Common shares | ||||
| Shares with anti-dilutive effect, not included in calculation of earnings per share | 1,881,641 | 3,692,158 | 1,775,306 | 4,010,213 |
| Convertible Preferred Stock | ||||
| Shares with anti-dilutive effect, not included in calculation of earnings per share | 6,970,758 | 8,472,835 | 6,988,379 | 8,475,918 |