Condensed Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) (Unaudited) (USD $)
In Thousands, except Share data, unless otherwise specified
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Accumulated Other Comprehensive Income (Loss)
Noncontrolling Interest
Convertible Preferred Stock
Beginning balance at Dec. 31, 2010 $ (52,419) $ 1 $ 3,340 $ (55,861) $ 452 $ (351) $ 53,442
Beginning balance, shares at Dec. 31, 2010   6,143,018         10,761,511
Issuance of common stock upon exercise of stock options 504   504        
Issuance of common stock upon exercise of stock options, shares   334,903          
Vesting of restricted stock 563   563        
Stock-based compensation 576   576        
Components of other comprehensive income (loss), net of tax:              
Change in unrealized gain (loss) on investments 2       2    
Change in unrealized gain (loss) on derivatives (471)       (471)    
Net loss (6,362)     (6,082)   (280)  
Comprehensive loss (6,831)            
Ending balance at Jun. 30, 2011 (57,607) 1 4,983 (61,943) (17) (631) 53,442
Ending balance, shares at Jun. 30, 2011   6,477,921         10,761,511
Beginning balance at Dec. 31, 2011 79,568 [1] 2 147,085 (66,130) (616) (773)  
Beginning balance, shares at Dec. 31, 2011   22,978,166          
Issuance of common stock upon exercise of stock options 1,088   1,088        
Issuance of common stock upon exercise of stock options, shares   581,457          
Vesting of restricted stock 280   280        
Stock-based compensation 1,834   1,834        
Purchase of additional ownership interest in Incapsula, Inc.     (174)     174  
Components of other comprehensive income (loss), net of tax:              
Change in unrealized gain (loss) on investments 35       35    
Change in unrealized gain (loss) on derivatives 71       71    
Net loss (5,039)     (4,804)   (235)  
Comprehensive loss (4,933)            
Ending balance at Jun. 30, 2012 $ 77,837 $ 2 $ 150,113 $ (70,934) $ (510) $ (834)  
Ending balance, shares at Jun. 30, 2012   23,559,623          
[1] The Condensed Consolidated Balance Sheet as of December 31, 2011 has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements.