Annual report pursuant to Section 13 and 15(d)

Calculation of Basic and Diluted Net Income (Loss) Per Share (Detail)

v2.4.0.6
Calculation of Basic and Diluted Net Income (Loss) Per Share (Detail) (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
Numerator:                      
Net income (loss) $ 3,722 $ 2,113 $ (2,372) $ 1,720 $ 241 $ (1,106) $ 282 $ (648) $ 5,183 $ (1,231) $ 67
8% cumulative dividends on participating preferred stock                     (2,944)
Net income (loss) attributable to common stockholders - basic and diluted                 $ 5,183 $ (1,231) $ (2,877)
Basic:                      
Weighted average common shares used in computing basic net income (loss) per share                 71,838 68,480 39,737
Diluted:                      
Weighted average common shares used in computing basic net income (loss) per share                 71,838 68,480 39,737
Add weighted average effect of dilutive securities:                      
Stock options and restricted stock                 2,164    
Weighted average common shares used in computing diluted net income (loss) per share                 74,002 68,480 39,737
Net income (loss) per common share:                      
Basic                 $ 0.07 $ (0.02) $ (0.07)
Diluted                 $ 0.07 $ (0.02) $ (0.07)