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
Capital
Deficit
Interest
Total
Beginning Balances, Amount at Dec. 31, 2011 $ 1 $ 6 $ 556,952 $ (509,985) $ 72,290 $ 119,264
Beginning Balances, Shares at Dec. 31, 2011 927 5,775        
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   (3)        
Shares issued on equity offerings, Amount   4 15,856     15,860
Shares issued on equity offerings, Shares   3,700        
Shares issued as payment of prior unpaid Series B preferred dividends, Amount     1,462     1,462
Shares issued as payment of prior unpaid Series B preferred dividends, Shares   302        
Warrant exercises, Amount     139     139
Warrant exercises, Shares   15        
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 10 582,861 (530,310) 20,345 72,907
Ending Balances, Shares at Dec. 31, 2012 927 9,789        
Stock-based compensation expense - restricted stock and options to employees and directors, net of cancellations, Amount   1 1,696     1,697
Stock-based compensation expense - restricted stock and options to employees and directors, net of cancellations, Shares   600        
Shares issued on Convertible Notes, Amount   4 18,551     18,555
Shares issued on Convertible Notes, Shares   4,446        
Shares issued on senior notes, Amount     2,000     2,000
Shares issued on senior notes, Shares   500        
Shares issued as payment of prior unpaid Series B preferred dividends, Amount   1 2,192     2,193
Shares issued as payment of prior unpaid Series B preferred dividends, Shares   511        
Warrant exercises, Amount     2,317     2,317
Warrant exercises, Shares   280        
Purchase of interests in New PE Holdco     11,940   (14,281) (2,341)
Preferred stock dividends       (1,265)   (1,265)
Net income (loss)       (781) (381) (1,162)
Ending Balances, Amount at Dec. 31, 2013 $ 1 $ 16 $ 621,557 $ (532,356) $ 5,683 $ 94,901
Ending Balances, Shares at Dec. 31, 2013 927 16,126