|
Net Loss Per Common Share (Details) (USD $)
|
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Sep. 30, 2014
|
Jun. 30, 2014
|
Mar. 31, 2014
|
Dec. 31, 2013
|
Sep. 30, 2013
|
Jun. 30, 2013
|
Mar. 31, 2013
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Earnings Per Share [Abstract] | |||||||||||
| Earnings per share, basic and diluted (USD per share) | $ 0.26 | $ (0.09) | $ (0.31) | $ (0.06) | $ 0.05 | $ (0.23) | $ (0.25) | $ (0.14) | $ (0.21) | $ (0.57) | $ (0.92) |