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Note 3 - Investment Securities Available For Sale (Tables)
12 Months Ended
Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]  
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]
   

December 31, 2013

 
           

Gross

   

Gross

         
   

Amortized

   

Unrealized

   

Unrealized

   

Fair

 

(Dollar amounts in thousands)

 

Cost

   

Gains

   

Losses

   

Value

 
                                 

U.S. government agency securities

  $ 27,289     $ 135       (1,661 )   $ 25,763  

Obligations of states and political subdivisions:

                               

Taxable

    3,787       46       (38 )     3,795  

Tax-exempt

    86,524       1,562       (3,267 )     84,819  

Mortgage-backed securities in government-sponsored entities

    38,816       535       (1,028 )     38,323  

Private-label mortgage-backed securities

    3,366       327       -       3,693  

Total debt securities

    159,782       2,605       (5,994 )     156,393  

Equity securities in financial institutions

    750       -       -       750  

Total

  $ 160,532     $ 2,605     $ (5,994 )   $ 157,143  
   

December 31, 2012

 
           

Gross

   

Gross

         
   

Amortized

   

Unrealized

   

Unrealized

   

Fair

 

(Dollar amounts in thousands)

 

Cost

   

Gains

   

Losses

   

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]
   

Amortized

   

Fair

 

(Dollar amounts in thousands)

 

Cost

   

Value

 
                 

Due in one year or less

  $ 1,530     $ 1,552  

Due after one year through five years

    4,640       4,858  

Due after five years through ten years

    22,433       22,257  

Due after ten years

    131,179       127,726  
                 

Total

  $ 159,782     $ 156,393  
Realized Gain (Loss) on Investments [Table Text Block]
   

2013

   

2012

   

2011

 

Proceeds from sales

  $ 25,088       32,985       24,127  

Gross realized gains

    186       704       830  

Gross realized losses

    (175 )     (94 )     (809 )

Impairment losses

    -       -       (194 )
Schedule of Unrealized Loss on Investments [Table Text Block]
   

December 31, 2013

 
   

Less than Twelve Months

   

Twelve Months or Greater

   

Total

 
           

Gross

           

Gross

           

Gross

 
   

Fair

   

Unrealized

   

Fair

   

Unrealized

   

Fair

   

Unrealized

 

(Dollar amounts in thousands)

 

Value

   

Losses

   

Value

   

Losses

   

Value

   

Losses

 
                                                 

U.S. government agency securities

  $ 13,130     $ (929 )   $ 7,166     $ (732 )   $ 20,295     $ (1,661 )

Obligations of states and political subdivisions

                                               

Taxable

    1,301       (38 )     -       -       1,301       (38 )

Tax-exempt

    26,743       (2,883 )     2,678       (383 )     29,421       (3,267 )

Mortgage-backed securities in government-sponsored entities

    18,082       (757 )     5,248       (271 )     23,330       (1,028 )

Total

  $ 59,255     $ (4,608 )   $ 15,092     $ (1,386 )   $ 74,347     $ (5,994 )
   

December 31, 2012

 
   

Less than Twelve Months

   

Twelve Months or Greater

   

Total

 
           

Gross

           

Gross

           

Gross

 
   

Fair

   

Unrealized

   

Fair

   

Unrealized

   

Fair

   

Unrealized

 

(Dollar amounts in thousands)

 

Value

   

Losses

   

Value

   

Losses

   

Value

   

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 )