Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3)

v2.4.0.8
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3) (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
EPS Numerator:                      
Net loss $ (16,861) $ (23,824) $ (22,768) $ (25,574) $ (25,472) $ (25,456) $ (24,738) $ (23,174) $ (89,027) $ (98,840) $ (85,973)
EPS Denominator - Basic:                      
Weighted-average common shares outstanding                 87,288 74,967 63,329
EPS Denominator - Diluted:                      
Weighted-average common shares outstanding                 87,288 74,967 63,329
Weighted-average shares outstanding and common stock equivalents                 87,288 74,967 63,329
Net loss per common share:                      
Basic and diluted (in dollars per share) $ (0.19) $ (0.27) $ (0.26) $ (0.29) $ (0.30) $ (0.36) $ (0.35) $ (0.32) $ (1.02) $ (1.32) $ (1.36)
Weighted average
                      
Antidilutive securities excluded from the computation of diluted net loss per share                      
Weighted average exercise price of options (in dollars per share) $ 10.55       $ 11.52       $ 10.55 $ 11.52 $ 12.07
Weighted average exercise price of warrant (in dollars per share) $ 6.61       $ 6.61       $ 6.61 $ 6.61 $ 6.61
Outstanding options
                      
Antidilutive securities excluded from the computation of diluted net loss per share                      
Antidilutive securities excluded from computation of earnings per share (in shares)                 15,532 13,604 11,749
Warrant
                      
Antidilutive securities excluded from the computation of diluted net loss per share                      
Antidilutive securities excluded from computation of earnings per share (in shares)                 200 200 200