Annual report pursuant to Section 13 and 15(d)

Basis of Presentation and Significant Accounting Policies (Details)

v2.4.0.6
Basis of Presentation and Significant Accounting Policies (Details) (USD $)
In Millions, except Share data in Thousands, unless otherwise specified
 6 Months Ended 12 Months Ended
Jun. 30, 2012
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Long-Lived Assets to be Abandoned [Line Items]        
Accelerated depreciation $ 1.3      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti-dilutive securities excluded from computation of diluted net income (loss) per share (in shares)   19,433 5,566 3,969
Options for Common Stock [Member]
        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti-dilutive securities excluded from computation of diluted net income (loss) per share (in shares)   5,603 3,890 2,180
Convertible Preferred Stock [Member]
        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti-dilutive securities excluded from computation of diluted net income (loss) per share (in shares)   0 67 254
Warrants for Common Stock [Member]
        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti-dilutive securities excluded from computation of diluted net income (loss) per share (in shares)   13,830 1,609 1,535
Equipment [Member] | Minimum [Member]
        
Property, Plant and Equipment [Line Items]        
Useful lives   3 years    
Equipment [Member] | Maximum [Member]
        
Property, Plant and Equipment [Line Items]        
Useful lives   7 years    
Leasehold Improvements, Buildings and Building Improvements [Member] | Minimum [Member]
        
Property, Plant and Equipment [Line Items]        
Useful lives   1 year    
Leasehold Improvements, Buildings and Building Improvements [Member] | Maximum [Member]
        
Property, Plant and Equipment [Line Items]        
Useful lives   15 years    
Property, Equipment, Building and Leasehold Improvements [Member]
        
Long-Lived Assets to be Abandoned [Line Items]        
Accelerated depreciation   1.3    
Impairment loss   0.8