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Note 4 - Investment Securities (Tables)
12 Months Ended
Dec. 31, 2013
Note 4 - Investment Securities (Tables) [Line Items]  
Schedule of Unrealized Loss on Investments [Table Text Block]
                                                         

December 31, 2013

                                                       
           

Less than 12 months

   

12 months or longer

   

Total

 
   

No. of

   

Fair

   

Unrealized

   

Fair

   

Unrealized

   

Fair

   

Unrealized

 
   

securities

   

value

   

losses

   

value

   

losses

   

value

   

losses

 

U.S. Government agency

    44     $ 54,563     $ (1,548 )     2,846     $ (154 )   $ 57,409     $ (1,702 )

State and municipal

    87       33,750       (1,379 )     4,288       (248 )     38,038       (1,627 )

Mortgage-backed

    54       75,720       (2,238 )     1,884       (123 )     77,604       (2,361 )

Collateralized mortgage obligations (CMOs)

    45       33,622       (1,413 )     18,567       (921 )     52,189       (2,334 )

Pooled trust preferred

    5       -       -       1,683       (1,535 )     1,683       (1,535 )

Corporate debt

    2       1,987       (13 )     -       -       1,987       (13 )

Equity

    3       394       (24 )     136       (20 )     530       (44 )

Total

    240     $ 200,036     $ (6,615 )   $ 29,404     $ (3,001 )   $ 229,440     $ (9,616 )

December 31, 2012

                                                       
           

Less than 12 months

   

12 months or longer

   

Total

 
   

No. of

   

Fair

   

Unrealized

   

Fair

   

Unrealized

   

Fair

   

Unrealized

 
   

securities

   

value

   

losses

   

value

   

losses

   

value

   

losses

 

U.S. Government agency

    4     $ 3,992     $ (19 )     -     $ -     $ 3,992     $ (19 )

State and municipal

    15       6,472       (91 )     -       -       6,472       (91 )

Mortgage-backed

    9       13,439       (33 )     -       -       13,439       (33 )

Collateralized mortgage obligations (CMOs)

    19       28,396       (155 )     -       -       28,396       (155 )

Pooled trust preferred

    5       -       -       1,609       (1,608 )     1,609       (1,608 )

Equity

    7       587       (45 )     272       (42 )     859       (87 )

Total

    59     $ 52,886     $ (343 )   $ 1,881     $ (1,650 )   $ 54,767     $ (1,993 )
Schedule of Pooled Trust Preferred Securities [Table Text Block]
                                                           

Deal

Class

 

Book

value

   

Fair

value

   

Unreal-ized gains (losses)

   

Realized

OTTI

credit

loss

(YTD 2013)

   

Total

recognized

OTTI

credit

loss

 

Moody's

/Fitch

ratings

 

Current

number of

performing

banks

   

Current

number of

performing

insurance

companies

   

Actual deferrals and defaults as a % of total collateral

   

Total performing collateral as a % of outstanding bonds

 

PreTSL IV

Mezzanine*

  $ 243     $ 200     $ (43 )   $ -     $ (1 )

B1/B

    5       -       18.0 %     139.7 %

PreTSL V

Mezzanine*

    -       -       -       -       (118 )

C/D

    -       -       100       12.9  

PreTSL XVII

Mezzanine

    752       432       (320 )     -       (222 )

C/C

    32       5       32.9       79.1  

PreTSL XIX

Mezzanine

    988       427       (561 )     -       -  

C/C

    36       13       22.6       82.7  

PreTSL XXV

Mezzanine

    766       339       (427 )     -       (222 )

C/C

    42       6       33       81.1  

PreTSL XXVI

Mezzanine

    469       285       (184 )     -       (270 )

C/C

    40       7       30.2       84.0  

PreTSL XXVI

Mezzanine

    301       386       85       -       (438 )

C/C

    40       7       30.2       84.0  
      $ 3,519     $ 2,069     $ (1,450 )   $ -     $ (1,271 )                                  
Available-for-sale Securities [Member]
 
Note 4 - Investment Securities (Tables) [Line Items]  
Unrealized Gain (Loss) on Investments [Table Text Block]

December 31, 2013

                               
           

Gross

   

Gross

         
           

unrealized

   

unrealized

         
   

Fair

   

holding

   

holding

   

Amortized

 
   

value

   

gains

   

losses

   

cost

 

U.S. Government agency

  $ 71,639     $ 195     $ (1,702 )   $ 73,146  

State and municipal

    87,199       1,023       (1,627 )     87,803  

U.S. Government agencies and sponsored enterprises (GSEs):

                               

Mortgage-backed

    139,723       1,436       (2,361 )     140,648  

Collateralized mortgage obligations (CMOs)

    75,394       556       (2,334 )     77,172  

Pooled trust preferred

    2,069       85       (1,535 )     3,519  

Corporate debt

    6,021       24       (13 )     6,010  

Equity

    6,625       1,127       (44 )     5,542  

Total investment securities available-for-sale

  $ 388,670     $ 4,446     $ (9,616 )   $ 393,840  

December 31, 2012

                               
           

Gross

   

Gross

         
           

unrealized

   

unrealized

         
   

Fair

   

holding

   

holding

   

Amortized

 
   

value

   

gains

   

losses

   

cost

 

U.S. Government agency

  $ 104,130     $ 750     $ (19 )   $ 103,399  

State and municipal

    86,789       3,141       (91 )     83,739  

U.S. Government agencies and sponsored enterprises (GSEs):

                               

Mortgage-backed

    107,973       3,169       (33 )     104,837  

Collateralized mortgage obligations (CMOs)

    94,091       1,188       (155 )     93,058  

Pooled trust preferred

    1,962       51       (1,608 )     3,519  

Corporate debt

    2,502       44       -       2,458  

Equity

    4,055       402       (87 )     3,740  

Total investment securities available-for-sale

  $ 401,502     $ 8,745     $ (1,993 )   $ 394,750  
Investments Classified by Contractual Maturity Date [Table Text Block]
           

Amortized

 

December 31, 2013

 

Fair value

   

cost

 

Due in one year or less

  $ 11,706     $ 11,524  

Due after one year through five years

    214,304       214,741  

Due after five years through ten years

    118,631       122,503  

Due after ten years

    37,404       39,530  

Equity securities

    6,625       5,542  

Total investment securities available-for-sale

  $ 388,670     $ 393,840  
Realized Gain (Loss) on Investments [Table Text Block]

December 31,

 

2013

   

2012

 
                   

Other-than-

                           

Other-than-

         
   

Gross

   

Gross

   

temporary

           

Gross

   

Gross

   

temporary

         
   

realized

   

realized

   

impairment

           

realized

   

realized

   

impairment

         
   

gains

   

losses

   

losses

   

Net gains

   

gains

   

losses

   

losses

   

Net gains

 

Equity securities

  $ 672     $ -     $ (43 )   $ 629     $ 556     $ -     $ (105 )   $ 451  

Debt securities

    196       (1 )     -       195       287       (161 )     -       126  

Total

  $ 868     $ (1 )   $ (43 )   $ 824     $ 843     $ (161 )   $ (105 )   $ 577  
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]

Year ended December 31,

 

2013

   

2012

 

Balance, beginning of year

  $ 1,271     $ 1,279  

Reductions: gain on payoff

    -       (8 )

Additions:

               

Initial credit impairments

    -       -  

Subsequent credit impairments

    -       -  

Balance, end of year

  $ 1,271     $ 1,271  
Held-to-maturity Securities [Member]
 
Note 4 - Investment Securities (Tables) [Line Items]  
Unrealized Gain (Loss) on Investments [Table Text Block]

December 31,

 

2013

   

2012

 
           

Gross

   

Gross

                   

Gross

   

Gross

         
           

unrealized

   

unrealized

                   

unrealized

   

unrealized

         
   

Amortized

   

holding

   

holding

   

Fair

   

Amortized

   

holding

   

holding

   

Fair

 
   

cost

   

gains

   

losses

   

value

   

cost

   

gains

   

losses

   

value

 

State and municipal

  $ 146     $ 16       -     $ 162     $ 146     $ 20       -     $ 166  
Investments Classified by Contractual Maturity Date [Table Text Block]
           

Amortized

 

December 31, 2013

 

Fair value

   

cost

 

Due in one year or less

    -       -  

Due after one year through five years

  $ 162     $ 146  

Due after five years through ten years

    -       -  

Due after ten years

    -       -  

Total investment securities held-to-maturity

  $ 162     $ 146