XML 48 R35.htm IDEA: XBRL DOCUMENT v2.4.0.6
Summary of Significant Accounting Policies (Details 4) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Reconciliation of the numerators and denominators used in computing basic and diluted net income per share        
Net loss $ (15,590,350) $ (1,930,553) $ (21,072,148) $ (7,104,588)
Accretion of Series G Preferred Stock    (1,564,578)    (1,987,977)
Fair market value of warrants issued to Series G Preferred Stock stockholders    (906,150)    (906,150)
Cumulative dividends on Series G Preferred Stock (5,000) (105,000) (15,000) (238,479)
Numerator, basic and diluted net income (loss) available to stockholders $ (15,595,350) $ (4,506,281) $ (21,087,194) $ (10,237,194)
Shares used in computation - basic:        
Weighted average common shares outstanding 73,234,692 67,873,487 73,199,914 67,512,776
Shares used in computation - diluted:        
Shares used in computing diluted net income per share 73,234,692 67,873,487 73,199,914 67,512,776
Dilutive effect of potential common shares outstanding            
Net loss per share - basic $ (0.21) $ (0.07) $ (0.29) $ (0.15)
Net loss per share - diluted $ (0.21) $ (0.07) $ (0.29) $ (0.15)