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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands
9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:  
Net loss$ (87,464)$ (61,777)
Adjustments to reconcile loss to net cash used in operating activities:  
Depreciation and amortization4849
Expense for commitment fee1,000 
Stock-based compensation6,0222,010
Stock-based compensation-warrants1,004858
Stock issued for services57 
Excess tax benefit from stock-based awards(1,571) 
Loss on changes in fair value of derivative liability53,40333,402
Changes in assets and liabilities:  
Other assets(1,255)1,253
Change in lease liability(39)(537)
Accounts payable, accrued expenses, and other liabilities932404
Net cash used in operating activities(27,863)(24,338)
CASH FLOWS FROM INVESTING ACTIVITIES:  
Purchase of long term investment(1,650) 
Purchases of equipment(33)(24)
Net cash used in investing activities(1,683)(24)
CASH FLOWS FROM FINANCING ACTIVITIES:  
Proceeds from issuance of common stock, net of transaction costs98,654 
Proceeds from exercise of stock options, net of transaction costs5,07329
Proceeds from exercise of warrants, net of transaction costs18,6613,567
Excess tax benefit from stock-based awards1,571 
Payments under capital leases (9)
Net cash provided by financing activities123,9593,587
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS94,413(20,775)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD31,44252,258
CASH AND CASH EQUIVALENTS, END OF PERIOD125,85531,483
Cash paid during the year for:  
Interest  
Income taxes58165
Non-cash transactions:  
Transfer from derivative liability to equity, fair value of warrants exercised$ 129,458$ 4,637