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Changes in Shareholders' Equity
9 Months Ended
Sep. 30, 2011
Changes in Shareholders' Equity/Dividends [Abstract] 
Changes in Shareholders' Equity
4.   Changes in Shareholders’ Equity:
                                         
                    Additional             Total  
    Preferred     Common     Paid-in     Retained     Shareholders’  
    Stock     Stock     Capital     Earnings     Equity  
Balance December 31, 2010
  $ 32     $ 2,411     $ 37,045     $ 33,109     $ 72,597  
Issuance of 7,082 common shares for stock options exercised, employee stock purchases and employee stock awards
            4       100               104  
Share-based compensation, options granted
                    102               102  
Dividends:
                                       
Preferred stock, $5.00 per share
                            (3 )     (3 )
Common stock, $.12 per share
                            (581 )     (581 )
Net income for the period
                            326       326  
 
Balance September 30, 2011
  $ 32     $ 2,415     $ 37,247     $ 32,851     $ 72,545