Annual report pursuant to section 13 and 15(d)

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)
In Thousands, except Share data
Preferred Stock
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Noncontrolling Interest in VIE
Total
Beginning Balances, Amount at Dec. 31, 2010 $ 1 $ 13 $ 504,623 $ (511,794) $ 94,972 $ 87,815
Beginning Balances, Shares at Dec. 31, 2010 1,456 12,918        
Stock-based compensation expense - restricted stock and options to employees and directors, net of cancellations, Amount      2,278       2,278
Stock-based compensation expense - restricted stock and options to employees and directors, net of cancellations, Shares   264        
Conversion of preferred stock to common stock, Amount                  
Conversion of preferred stock to common stock, Shares (529) 444        
Shares issued on Convertible Notes, Amount   64 36,800       36,864
Shares issued on Convertible Notes, Shares   63,859        
Shares issued in private placement, Amount   8 5,547       5,555
Shares issued in private placement, Shares   7,625        
Warrant exercises, Amount   2 1,155       1,157
Warrant exercises, Shares   1,522        
Purchase of interests in New PE Holdco     6,468    (15,585) (9,117)
Preferred stock dividends       (1,265)    (1,265)
Net income (loss)       3,074 (7,097) (4,023)
Ending Balances, Amount at Dec. 31, 2011 1 87 556,871 (509,985) 72,290 119,264
Ending Balances, Shares at Dec. 31, 2011 927 86,632        
Stock-based compensation expense - restricted stock and options to employees and directors, net of cancellations, Amount      806       806
Stock-based compensation expense - restricted stock and options to employees and directors, net of cancellations, Shares   (41)        
Shares issued on equity offerings, Amount   56 15,804       15,860
Shares issued on equity offerings, Shares   55,500        
Shares issued as payment of prior unpaid Series B preferred dividends, Amount   4 1,458       1,462
Shares issued as payment of prior unpaid Series B preferred dividends, Shares   4,528        
Warrant exercises, Amount      139       139
Warrant exercises, Shares   222        
Purchase of interests in New PE Holdco     7,646    (27,647) (20,001)
Preferred stock dividends       (1,268)    (1,268)
Net income (loss)       (19,057) (24,298) (43,355)
Ending Balances, Amount at Dec. 31, 2012 $ 1 $ 147 $ 582,724 $ (530,310) $ 20,345 $ 72,907
Ending Balances, Shares at Dec. 31, 2012 927 146,841