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Note 6 - Investment Securities Available For Sale (Tables)
3 Months Ended
Mar. 31, 2013
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]
   
March 31, 2013
 
(Dollar amounts in thousands)
 
Amortized
Cost
   
Gross
Unrealized
Gains
   
Gross
Unrealized
Losses
   
Fair
Value
 
                         
U.S. government agency securities
  $ 25,277     $ 556     $ (81 )   $ 25,752  
Obligations of states and political subdivisions:
                               
Taxable
    5,892       597       -       6,489  
Tax-exempt
    84,379       3,985       (391 )     87,973  
Mortgage-backed securities in government-sponsored entities
    63,710       1,481       (165 )     65,026  
Private-label mortgage-backed securities
    4,216       481       -       4,697  
Total debt securities
    183,474       7,100       (637 )     189,937  
Equity securities in financial institutions
    750       -       -       750  
Total
  $ 184,224     $ 7,100     $ (637 )   $ 190,687  
   
December 31, 2012
 
   
Amortized
Cost
   
Gross
Unrealized
Gains
   
Gross
Unrealized
Losses
   
Fair
Value
 
                         
U.S. government agency securities
  $ 24,485     $ 566     $ (91 )   $ 24,960  
Obligations of states and political subdivisions:
                               
Taxable
    6,888       738       -       7,626  
Tax-exempt
    80,391       4,683       (104 )     84,970  
Mortgage-backed securities in government-sponsored entities
    69,238       1,929       (65 )     71,102  
Private-label mortgage-backed securities
    4,553       511       -       5,064  
Total debt securities
    185,555       8,427       (260 )     193,722  
Equity securities in financial institutions
    750       -       -       750  
Total
  $ 186,305     $ 8,427     $ (260 )   $ 194,472  
Investments Classified by Contractual Maturity Date [Table Text Block]
(Dollar amounts in thousands)
 
Amortized
Cost
   
Fair
Value
 
             
Due in one year or less
  $ 2,915     $ 2,985  
Due after one year through five years
    4,543       4,811  
Due after five years through ten years
    21,842       22,805  
Due after ten years
    154,174       159,336  
                 
Total
  $ 183,474     $ 189,937  
Realized Gain (Loss) on Investments [Table Text Block]
    2013     2012  
Proceeds from sales   $ 7,438       -  
Gross realized gains     204       -  
Gross realized losses     (19 )     -  
Schedule of Unrealized Loss on Investments [Table Text Block]
   
March 31, 2013
 
   
Less than Twelve Months
   
Twelve Months or Greater
   
Total
 
(Dollar amounts in thousands)
 
Fair
Value
   
Gross
Unrealized
Losses
   
Fair
Value
   
Gross
Unrealized
Losses
   
Fair
Value
   
Gross
Unrealized
Losses
 
                                     
U.S. government agency securities
  $ 11,925     $ (81 )   $ -     $ -     $ 11,925     $ (81 )
Obligations of states and political subdivisions
    14,834       (391 )     -       -       14,834       (391 )
Mortgage-backed securities in government-sponsored entities
    15,768       (165 )     -       -       15,768       (165 )
Total
  $ 42,527     $ (637 )   $ -     $ -     $ 42,527     $ (637 )
   
December 31, 2012
 
   
Less than Twelve Months
   
Twelve Months or Greater
   
Total
 
   
Fair
Value
   
Gross
Unrealized
Losses
   
Fair
Value
   
Gross
Unrealized
Losses
   
Fair
Value
   
Gross
Unrealized
Losses
 
                                                 
U.S. government agency securities
  $ 9,938     $ (91 )   $ -     $ -     $ 9,938     $ (91 )
Obligations of states and political subdivisions
    9,240       (104 )     -       -       9,240       (104 )
Mortgage-backed securities in government-sponsored entities
    12,353       (65 )     -       -       12,353       (65 )
Total
  $ 31,531     $ (260 )   $ -     $ -     $ 31,531     $ (260 )