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Note 5 - Earnings Per Common Share (Tables)
6 Months Ended
Jun. 30, 2013
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

Three Months Ended
June 30,

   

Six Months Ended
June 30,

 
   

2013

   

2012

   

2013

   

2012

 

Numerator

                               

Net income (loss)

  $ (24,858

)

  $ 2,524     $ (13,764

)

  $ 15,096  

Preferred stock dividends

    (138

)

    (138

)

    (276

)

    (276

)

Net income (loss) applicable to common shares for basic and diluted earnings per share

  $ (24,996

)

  $ 2,386     $ (14,040

)

  $ 14,820  
                                 

Denominator

                               

Basic weighted average common shares

    303,566       285,312       294,317       285,303  

Dilutive stock options and restricted stock

          9,848             10,797  

Diluted weighted average common shares

    303,566       295,160       294,317       296,100  

Basic earnings (loss) per common share 

                               

Net income (loss) applicable to common shares

  $ (0.08

)

  $ 0.01     $ (0.05

)

  $ 0.05  

Diluted earnings (loss) per common share 

                               

Net income (loss) applicable to common shares

  $ (0.08

)

  $ 0.01     $ (0.05

)

  $ 0.05