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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Common Stock, shares authorized 150,000 150,000
Common Stock, shares issued 38,756 38,635
Common Stock, shares outstanding 38,756 38,635
Series B-1 non-voting convertible preferred stock
   
Preferred stock, shares authorized 39  
Preferred stock, shares reserved 39  
Preferred stock, shares issued 12  
Preferred stock, shares outstanding 12