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Earnings Per Common Share (Tables)
3 Months Ended
Mar. 31, 2013
Earnings Per Common Share [Abstract]  
Earnings per common share
Earnings per common share are summarized in the following table:

   
Three Months Ended March 31,
 
   
2013
  
2012
 
   
(In thousands, except per share amounts)
 
Net income
 $797  $546 
Less net income attributable to participating securities(1)
  17   9 
Net income available to common shareholders
 $780  $537 
          
Weighted average number of shares outstanding, basic
  2,588   2,582 
Effect of potentially dilutive common shares(2)
  57   22 
Weighted average number of shares outstanding, diluted
  2,645   2,604 
          
Earnings per share, basic
 $0.31  $0.21 
Earnings per share, diluted
 $0.30  $0.21 
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(1) Represents dividends paid and undistributed earnings allocated to non-vested restricted stock awards.
(2) Represents the effect of the assumed exercise of warrants, assumed exercise of stock options, vesting of non-participating restricted shares, and vesting of restricted stock units, based on the treasury stock method.