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Consolidated Statements Of Stockholders' Equity (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Stock-based incentive plan, shares 133,000 1,567,000 2,426,000
Preferred Stock
      
Accrued dividends   $ 801  
Common Stock
      
Issuance of shares in common stock offering   15,000,000  
Offering issuance costs   $ 2,279