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Note 2 - Securities (Tables)
 9 Months Ended 21 Months Ended
Sep. 30, 2012
Sep. 30, 2012
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]
   
As of September 30, 2012
 
   
Amortized
   
Unrealized
         
Fair
 
   
Cost
   
Gains
   
Losses
    OTTI    
Value
 
   
(In thousands)
 
Securities available-for-sale
                             
Debt Securities
                             
U.S. Treasury and other U.S. government corporations and agencies
  $ 75,457     $ 466     $ (10 )   $
─
    $ 75,913  
Obligations of state and political subdivisions
    12,849       552    
─
   
─
      13,401  
Corporate
    6,086       266                       6,352  
Mortgage-backed securities and collateralized mortgage obligations:
                                       
Government issued or guaranteed
    65,585       1,847    
─
   
─
      67,432  
Privately issued residential
    775       309       (5 )     (402 )     677  
Asset backed securities
    196       122    
─
      (175 )     143  
Equity Securities
                                       
Investment in CRA funds
    13,964       400    
─
   
─
      14,364  
Total available-for-sale securities
  $ 174,912     $ 3,962     $ (15 )   $ (577 )   $ 178,282  
                                         
Securities held-to-maturity
                                       
Obligations of state and political subdivisions
  $ 4,046     $ 726     $
─
    $
─
    $ 4,772  
Total held-to-maturity securities
  $ 4,046     $ 726     $
─
    $
─
    $ 4,772  
                                         
Other investments
                                       
FHLB/Federal Reserve Bank stock (1)
  $ 4,691     $
─
    $
─
    $
─
    $ 4,691  
Investment in subsidiary trust (1)
    1,083    
─
   
─
   
─
      1,083  
Total other investments
  $ 5,774     $
─
    $
─
    $
─
    $ 5,774  
   
As of December 31, 2011
 
         
Unrealized
       
   
 
Amortized
Cost
   
 
Gains
   
 
Losses
   
 
OTTI
   
 
Fair
Value
 
   
(In thousands)
 
Securities available-for-sale
                             
Debt securities
                             
U.S. Treasury and other U.S. government corporations and agencies
 
$
91,660
   
$
546
   
$
(7
)
 
$
—
   
$
92,199
 
Obligations of state and political subdivisions
   
5,467
     
279
     
(40
)
   
—
     
5,706
 
Corporate
   
6,102
     
57
     
(18
)
   
—
     
6,141
 
Mortgage-backed securities and collateralized mortgage obligations:
                                       
Government issued or guaranteed
   
52,594
     
1,160
     
(15
)
   
—
     
53,739
 
Privately issued residential
   
900
     
232
     
(23
)
   
(442
)
   
667
 
Asset backed securities
   
231
     
56
     
—
     
(185
)
   
102
 
Equity securities
                                       
Investment in CRA funds
   
13,700
     
135
     
—
     
—
     
13,835
 
                                         
Total available-for-sale securities
 
$
170,654
   
$
2,465
   
$
(103
)
 
$
(627
)
 
$
172,389
 
                                         
Securities held-to-maturity
                                       
Obligations of state and political subdivisions
 
$
4,046
   
$
490
   
$
—
   
$
—
   
$
4,536
 
                                         
Total held-to-maturity securities
 
$
4,046
   
$
490
   
$
—
   
$
—
   
$
4,536
 
                                         
Other investments
                                       
FHLB /Federal Reserve Bank stock(1)
   
5,401
     
—
     
—
     
—
     
5,401
 
Investment in subsidiary trust(1)
   
1,083
     
—
     
—
     
—
     
1,083
 
                                         
Total other investments
 
$
6,484
   
$
—
   
$
—
   
$
—
   
$
6,484
 
 
Unrealized Gain (Loss) on Investments [Table Text Block]  
   
September 30, 2012
 
   
Less Than 12 Months
   
Greater Than 12 Months
   
Total
 
   
Fair
Value
   
Gross
Unrealized
Losses
   
Fair
Value
   
Gross
Unrealized
Losses
   
Fair
Value
   
Gross
Unrealized
Losses
 
   
(In thousands)
 
Securities available-for-sale
                                   
Debt securities
                                   
Obligations of state and political subdivisions
 
$
9,953
   
$
(10
)
 
$
—
   
$
—
   
$
9,953
   
$
(10
)
Mortgage-backed securities and collateralized mortgage obligations:
                                               
Government issued or guaranteed
   
—
     
—
     
111
     
(5
)
   
111
     
(5
)
                                                 
Total available-for-sale securities
 
$
9,953
   
$
(10
)
 
$
111
   
$
(5
)
 
$
10,065
   
$
(15
)
   
As of December 31, 2011
 
   
Less Than 12
Months
   
Greater Than 12
Months
   
Total
 
   
Fair
Value
   
Gross Unrealized
Losses
   
Fair
Value
   
Gross Unrealized
Losses
   
Fair
Value
   
Gross Unrealized
Losses
 
   
(In thousands)
Securities available-for-sale
                                               
Debt securities
                                               
U.S. Treasury and other U.S. government corporations and agencies
 
$
4,993
   
$
(7
)
 
$
—
   
$
—
   
$
4,993
   
$
(7
)
Obligations of state and political subdivisions
   
1,580
     
(40
)
   
—
     
—
     
1,580
     
(40
)
Corporate
   
3,017
     
(18
)
   
—
     
—
     
3,017
     
(18
)
Mortgage-backed securities and collateralized mortgage obligations:
                                               
Government issued or guaranteed
   
8,786
     
(15
)
   
10
     
—
     
8,796
     
(15
)
Privately issued residential
   
—
     
—
     
168
     
(23
)
   
168
     
(23
)
                                                 
Total available-for-sale securities
 
$
18,376
   
$
(80
)
 
$
178
   
$
(23
)
 
$
18,554
   
$
(103
)
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]
   
Impairment related to credit losses
 
   
Three Months Ended
September 30, 2012
   
Nine Months Ended
September 30, 2012
 
   
(In thousands)
 
Credit losses at beginning  of period
 
$
1,672
   
$
1,595
 
Additions to OTTI that were previously recognized when there is no intent to sell and no requirement to sell before recovery of amortized cost basis
   
5
     
51
 
Transfers from accumulated other comprehensive income to OTTI related to credit losses
   
2
     
33
 
Credit losses at end of period
 
$
1,679
   
$
1,679
 
 
Realized Gain (Loss) on Investments [Table Text Block]
   
Nine Months Ended
September 30,
 
   
2012
   
2011
 
Amortized cost
 
$
—
   
$
7,973
 
Proceeds
   
—
     
7,927
 
Gross realized gains
   
—
     
94
 
Gross realized losses
   
—
     
(140
)
 
Investments Classified by Contractual Maturity Date [Table Text Block]
   
Securities
Available-for-sale
   
Securities
Held-to-maturity
 
   
Amortized
Cost
   
Fair
Value
   
Amortized
Cost
   
Fair
Value
 
Within one year
 
$
706
   
$
725
   
$
—
   
$
—
 
Within two to five years
   
8,083
     
8,357
     
—
     
—
 
Within six to ten years
   
74,247
     
74,816
     
—
     
—
 
After ten years
   
11,552
     
11,911
     
4,046
     
4,772
 
Mortgage-backed securities and collateralized mortgage obligations
   
66,360
     
68,109
     
—
     
—
 
Total debt securities
 
$
160,948
   
$
163,918
   
$
4,046
   
$
4,772