Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3)

v2.4.0.6
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, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
EPS Numerator:                      
Net (loss) income $ (25,472) $ (25,456) $ (24,738) $ (23,174) $ (25,787) $ (17,931) $ (21,474) $ (20,781) $ (98,840) $ (85,973) $ 37,890
EPS Denominator - Basic:                      
Weighted-average common shares outstanding                 74,967 63,329 52,055
EPS Denominator - Diluted:                      
Weighted-average common shares outstanding                 74,967 63,329 52,055
Dilutive effect of stock options, shares under Purchase Plan and warrant                     518
Weighted-average shares outstanding and common stock equivalents                 74,967 63,329 52,573
Net income (loss) per common share:                      
Basic (in dollars per share)                 $ (1.32) $ (1.36) $ 0.73
Diluted (in dollars per share)                 $ (1.32) $ (1.36) $ 0.72
Weighted average
                      
Antidilutive securities excluded from the computation of diluted net income (loss) per share                      
Weighted average exercise price of options (in dollars per share) $ 11.52       $ 12.07       $ 11.52 $ 12.07 $ 15.08
Weighted average exercise price of warrant (in dollars per share) $ 6.61       $ 6.61       $ 6.61 $ 6.61  
Outstanding options
                      
Antidilutive securities excluded from the computation of diluted net income (loss) per share                      
Antidilutive securities excluded from computation of earnings per share (in shares)                 13,604 11,749 7,536
Warrant
                      
Antidilutive securities excluded from the computation of diluted net income (loss) per share                      
Antidilutive securities excluded from computation of earnings per share (in shares)                 200 200