EARNINGS PER SHARE (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2013
|
Sep. 30, 2013
|
Jun. 30, 2013
|
Mar. 31, 2013
|
Dec. 31, 2012
|
Sep. 30, 2012
|
Jun. 30, 2012
|
Mar. 31, 2012
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
Numerator: | |||||||||||
Net loss | $ (11,956) | $ (14,784) | $ (14,031) | $ (23,138) | $ (16,346) | $ (15,745) | $ (8,296) | $ (11,894) | $ (63,909) | $ (52,281) | $ (43,328) |
Denominator: | |||||||||||
Weighted average shares of common stock outstanding | 33,182 | 30,332 | 16,437 | ||||||||
Net loss per share: | |||||||||||
Basic and diluted net loss per share of common stock (in dollars per share) | $ (0.36) | $ (0.44) | $ (0.42) | $ (0.71) | $ (0.50) | $ (0.49) | $ (0.27) | $ (0.47) | $ (1.93) | $ (1.72) | $ (2.64) |