Statements of Stockholder's Deficit (USD $)
In Thousands, except Share data
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Common Stock Held in Treasury
Balance at Dec. 31, 2008 $ (37,028) $ 306 $ 400,306 $ (433,688) $ (3,952)
Balance, shares at Dec. 31, 2008   30,630,810     289,732
Net Loss (16,821)     (16,821)  
Cumulative effect of change in accounting principle - implementation of ASC 915-40-15-5 14,260   (12,215) 26,475  
Equity proceeds from issuance of common stock, net of share issuance expenses 2,775 118 2,657    
Equity proceeds from issuance of common stock, net of share issuance expenses, shares   11,729,323      
Stock based compensation for employees 1,532   1,532    
Stock based compensation for directors 55   55    
Balance at Dec. 31, 2009 (35,227) 424 392,335 (424,034) (3,952)
Balance, shares at Dec. 31, 2009   42,360,133     289,732
Net Loss (56,909)     (56,909)  
Issuance of common stock to directors 10   10    
Issuance of common stock to directors, shares   13,674      
Reclassification of derivative liability due to exercise of warrants 7,053   7,053    
Exercise of warrants   28 (28)    
Exercise of warrants, shares   2,809,971      
Equity proceeds from issuance of common stock, net of share issuance expenses 1,754 70 1,684    
Equity proceeds from issuance of common stock, net of share issuance expenses, shares   6,995,056      
Stock based compensation for employees 723   723    
Stock based compensation for directors 76   76    
Balance at Dec. 31, 2010 (82,520) 522 401,853 (480,943) (3,952)
Balance, shares at Dec. 31, 2010   52,178,834     289,732
Net Loss 15,051     15,051  
Reclassification of derivative liability due to exercise of warrants 349   349    
Exercise of warrants 236 2 234    
Exercise of warrants, shares   187,500      
Equity proceeds from issuance of common stock, net of share issuance expenses 2,036 86 1,950    
Equity proceeds from issuance of common stock, net of share issuance expenses, shares   8,600,876      
Exercise of options 6   6    
Exercise of options, shares   10,000      
Stock based compensation for employees 188   188    
Stock based compensation for directors 127   127    
Balance at Dec. 31, 2011 $ (64,527) $ 610 $ 404,707 $ (465,892) $ (3,952)
Balance, shares at Dec. 31, 2011   60,977,210     289,732