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CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Current Assets:    
Cash and cash equivalents $ 250,255 $ 116,602
Deferred tax asset 533 533
Other current assets 6,433 1,837
Total current assets 257,221 118,972
Property, plant and equipment, net 621 432
Deferred tax asset 10,851 4,734
Other long term assets 2,482 2,241
TOTAL ASSETS 271,175 126,379
Current Liabilities:    
Accounts payable 8,429 4,419
Accrued expenses and other liabilities 9,070 4,033
Total current liabilities 17,499 8,452
Long-Term Liabilities:    
Warrant derivative liability 120,214 123,125
Long term debt 127,438  
Other long-term liabilities 704 764
Total liabilities 265,855 132,341
Commitments and contingencies (Note 5)      
Stockholders' Deficit:    
Common stock, £0.50 par, unlimited authorized; 148,132,553 issued, 148,112,474 outstanding at June 30, 2012; 135,832,542 issued, 135,812,463 outstanding at December 31, 2011 122,844 113,321
Additional paid-in capital 593,341 449,393
Treasury stock; 20,079 shares at June 30, 2012 and December 31, 2011 (217) (217)
Accumulated deficit (710,648) (568,459)
Total stockholders' equity (deficit) 5,320 (5,962)
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT) $ 271,175 $ 126,379